nvapi_sys_new 0.1.2

#include "nvapi_lite_common.h"
#include "nvapi_lite_sli.h"
#include "nvapi_lite_surround.h"
#include "nvapi_lite_stereo.h"
#include "nvapi_lite_d3dext.h"
#include "nvapi_lite_salstart.h"
/************************************************************************************************************************************\
|*                                                                                                                                    *|
|*     Copyright © 2012 NVIDIA Corporation.  All rights reserved.                                                                     *|
|*                                                                                                                                    *|
|*  NOTICE TO USER:                                                                                                                   *|
|*                                                                                                                                    *|
|*  This software is subject to NVIDIA ownership rights under U.S. and international Copyright laws.                                  *|
|*                                                                                                                                    *|
|*  This software and the information contained herein are PROPRIETARY and CONFIDENTIAL to NVIDIA                                     *|
|*  and are being provided solely under the terms and conditions of an NVIDIA software license agreement.                             *|
|*  Otherwise, you have no rights to use or access this software in any manner.                                                       *|
|*                                                                                                                                    *|
|*  If not covered by the applicable NVIDIA software license agreement:                                                               *|
|*  NVIDIA MAKES NO REPRESENTATION ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE.                                            *|
|*  IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND.                                                           *|
|*  NVIDIA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,                                                                     *|
|*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE.                       *|
|*  IN NO EVENT SHALL NVIDIA BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,                               *|
|*  OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,  WHETHER IN AN ACTION OF CONTRACT,                         *|
|*  NEGLIGENCE OR OTHER TORTIOUS ACTION,  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE.            *|
|*                                                                                                                                    *|
|*  U.S. Government End Users.                                                                                                        *|
|*  This software is a "commercial item" as that term is defined at 48 C.F.R. 2.101 (OCT 1995),                                       *|
|*  consisting  of "commercial computer  software"  and "commercial computer software documentation"                                  *|
|*  as such terms are  used in 48 C.F.R. 12.212 (SEPT 1995) and is provided to the U.S. Government only as a commercial end item.     *|
|*  Consistent with 48 C.F.R.12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (JUNE 1995),                                          *|
|*  all U.S. Government End Users acquire the software with only those rights set forth herein.                                       *|
|*                                                                                                                                    *|
|*  Any use of this software in individual and commercial software must include,                                                      *|
|*  in the user documentation and internal comments to the code,                                                                      *|
|*  the above Disclaimer (as applicable) and U.S. Government End Users Notice.                                                        *|
|*                                                                                                                                    *|
\************************************************************************************************************************************/

///////////////////////////////////////////////////////////////////////////////
//
// Date: May 11, 2022
// File: nvapi.h
//
// NvAPI provides an interface to NVIDIA devices. This file contains the
// interface constants, structure definitions and function prototypes.
//
//   Target Profile: developer
//  Target Platform: windows
//
///////////////////////////////////////////////////////////////////////////////
#ifndef _NVAPI_H
#define _NVAPI_H


#pragma pack(push, 8) // Make sure we have consistent structure packings


#ifdef __cplusplus
extern "C"
{
#endif
// ====================================================
// Universal NvAPI Definitions
// ====================================================
#ifndef _WIN32
#define __cdecl

#endif

//! @}

//!   \ingroup nvapistatus
#define NVAPI_API_NOT_INTIALIZED NVAPI_API_NOT_INITIALIZED //!< Fix typo in error code


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Initialize
    //
    //! This function initializes the NvAPI library (if not already initialized) but always increments the ref-counter.
    //! This must be called before calling other NvAPI_ functions.
    //! Note: It is now mandatory to call NvAPI_Initialize before calling any other NvAPI.
    //! NvAPI_Unload should be called to unload the NVAPI Library.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \return      This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!              specific meaning for this API, they are listed below.
    //! \retval      NVAPI_LIBRARY_NOT_FOUND  Failed to load the NVAPI support library
    //! \sa nvapistatus
    //! \ingroup nvapifunctions
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Initialize();

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Unload
    //
    //!   DESCRIPTION: Decrements the ref-counter and when it reaches ZERO, unloads NVAPI library.
    //!                This must be called in pairs with NvAPI_Initialize.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //!        If the client wants unload functionality, it is recommended to always call NvAPI_Initialize and NvAPI_Unload in pairs.
    //!
    //!  Unloading NvAPI library is not supported when the library is in a resource locked state.
    //!  Some functions in the NvAPI library initiates an operation or allocates certain resources
    //!  and there are corresponding functions available, to complete the operation or free the
    //!  allocated resources. All such function pairs are designed to prevent unloading NvAPI library.
    //!
    //!  For example, if NvAPI_Unload is called after NvAPI_XXX which locks a resource, it fails with
    //!  NVAPI_ERROR. Developers need to call the corresponding NvAPI_YYY to unlock the resources,
    //!  before calling NvAPI_Unload again.
    //!
    //! \return      This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!              specific meaning for this API, they are listed below.
    //! \retval      NVAPI_API_IN_USE       Atleast an API is still being called hence cannot unload requested driver.
    //!
    //! \ingroup nvapifunctions
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Unload();

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetErrorMessage
    //
    //! This function converts an NvAPI error code into a null terminated string.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \param nr      The error code to convert
    //! \param szDesc  The string corresponding to the error code
    //!
    //! \return NULL terminated string (always, never NULL)
    //! \ingroup nvapifunctions
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetErrorMessage(NvAPI_Status nr, NvAPI_ShortString szDesc);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetInterfaceVersionString
    //
    //! This function returns a string describing the version of the NvAPI library.
    //!               The contents of the string are human readable.  Do not assume a fixed
    //!                format.
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \param  szDesc User readable string giving NvAPI version information
    //!
    //! \return See \ref nvapistatus for the list of possible return values.
    //! \ingroup nvapifunctions
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetInterfaceVersionString(NvAPI_ShortString szDesc);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetInterfaceVersionStringEx
    //
    //! This function returns a string describing the version of the NvAPI library.
    //!               The contents of the string are human readable.  Do not assume a fixed  format.
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 450
    //!
    //! \param  szDesc User readable string giving NvAPI version information
    //!
    //! \return See \ref nvapistatus for the list of possible return values.
    //! \ingroup nvapifunctions
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetInterfaceVersionStringEx(NvAPI_ShortString szDesc);

    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    //              All display port related data types definition starts
    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

    // This category is intentionally added before the #ifdef. The #endif should also be in the same scope

#ifndef DISPLAYPORT_STRUCTS_DEFINED
#define DISPLAYPORT_STRUCTS_DEFINED


    //! \ingroup dispcontrol
    //! Used in NV_DISPLAY_PORT_INFO.
    typedef enum _NV_DP_LINK_RATE
    {
        NV_DP_1_62GBPS = 6,
        NV_DP_2_70GBPS = 0xA,
        NV_DP_5_40GBPS = 0x14,
        NV_DP_8_10GBPS = 0x1E,
        // Recommended Intermidiate Link Transfer Rates
        NV_EDP_2_16GBPS = 8,
        NV_EDP_2_43GBPS = 9,
        NV_EDP_3_24GBPS = 0xC,
        NV_EDP_4_32GBPS = 0x10
    } NV_DP_LINK_RATE;

    //! \ingroup dispcontrol
    //! Used in NV_DISPLAY_PORT_INFO.
    typedef enum _NV_DP_LANE_COUNT
    {
        NV_DP_1_LANE = 1,
        NV_DP_2_LANE = 2,
        NV_DP_4_LANE = 4,
    } NV_DP_LANE_COUNT;

    //! \ingroup dispcontrol
    //! Used in NV_DISPLAY_PORT_INFO.
    typedef enum _NV_DP_COLOR_FORMAT
    {
        NV_DP_COLOR_FORMAT_RGB = 0,
        NV_DP_COLOR_FORMAT_YCbCr422,
        NV_DP_COLOR_FORMAT_YCbCr444,
    } NV_DP_COLOR_FORMAT;

    //! \ingroup dispcontrol
    //! Used in NV_DISPLAY_PORT_INFO.
    typedef enum _NV_DP_COLORIMETRY
    {
        NV_DP_COLORIMETRY_RGB = 0,
        NV_DP_COLORIMETRY_YCbCr_ITU601,
        NV_DP_COLORIMETRY_YCbCr_ITU709,
    } NV_DP_COLORIMETRY;

    //! \ingroup dispcontrol
    //! Used in NV_DISPLAY_PORT_INFO.
    typedef enum _NV_DP_DYNAMIC_RANGE
    {
        NV_DP_DYNAMIC_RANGE_VESA = 0,
        NV_DP_DYNAMIC_RANGE_CEA,
    } NV_DP_DYNAMIC_RANGE;

    //! \ingroup dispcontrol
    //! Used in NV_DISPLAY_PORT_INFO.
    typedef enum _NV_DP_BPC
    {
        NV_DP_BPC_DEFAULT = 0,
        NV_DP_BPC_6,
        NV_DP_BPC_8,
        NV_DP_BPC_10,
        NV_DP_BPC_12,
        NV_DP_BPC_16,
    } NV_DP_BPC;

#endif //#ifndef DISPLAYPORT_STRUCTS_DEFINED

    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    //              All display port related data types definitions end
    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetEDID
    //
    //! \fn NvAPI_GPU_GetEDID(NvPhysicalGpuHandle hPhysicalGpu, NvU32 displayOutputId, NV_EDID *pEDID)
    //!  This function returns the EDID data for the specified GPU handle and connection bit mask.
    //!  displayOutputId should have exactly 1 bit set to indicate a single display. See \ref handles.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 85
    //!
    //! \retval    NVAPI_INVALID_ARGUMENT              pEDID is NULL; displayOutputId has 0 or > 1 bits set
    //! \retval    NVAPI_OK                           *pEDID contains valid data.
    //! \retval    NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \retval    NVAPI_DATA_NOT_FOUND                The requested display does not contain an EDID.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    //! @{

#define NV_EDID_V1_DATA_SIZE 256


#define NV_EDID_DATA_SIZE NV_EDID_V1_DATA_SIZE


    typedef struct
    {
        NvU32 version; // structure version
        NvU8 EDID_Data[NV_EDID_DATA_SIZE];
    } NV_EDID_V1;

    //! Used in NvAPI_GPU_GetEDID()
    typedef struct
    {
        NvU32 version; //!< Structure version
        NvU8 EDID_Data[NV_EDID_DATA_SIZE];
        NvU32 sizeofEDID;
    } NV_EDID_V2;

    //! Used in NvAPI_GPU_GetEDID()
    typedef struct
    {
        NvU32 version; //!< Structure version
        NvU8 EDID_Data[NV_EDID_DATA_SIZE];
        NvU32 sizeofEDID;
        NvU32 edidId; //!< ID which always returned in a monotonically increasing counter.
                      //!< Across a split-EDID read we need to verify that all calls returned the same edidId.
                      //!< This counter is incremented if we get the updated EDID.
        NvU32 offset; //!< Which 256-byte page of the EDID we want to read. Start at 0.
                      //!< If the read succeeds with edidSize > NV_EDID_DATA_SIZE,
                      //!< call back again with offset+256 until we have read the entire buffer
    } NV_EDID_V3;

    typedef NV_EDID_V3 NV_EDID;

#define NV_EDID_VER1 MAKE_NVAPI_VERSION(NV_EDID_V1, 1)

#define NV_EDID_VER2 MAKE_NVAPI_VERSION(NV_EDID_V2, 2)

#define NV_EDID_VER3 MAKE_NVAPI_VERSION(NV_EDID_V3, 3)

#define NV_EDID_VER NV_EDID_VER3


    //! @}

    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_GetEDID(NvPhysicalGpuHandle hPhysicalGpu, NvU32 displayOutputId, NV_EDID *pEDID);

    //! \ingroup gpu
    //! Used in NV_GPU_CONNECTOR_DATA
    typedef enum _NV_GPU_CONNECTOR_TYPE
    {
        NVAPI_GPU_CONNECTOR_VGA_15_PIN = 0x00000000,
        NVAPI_GPU_CONNECTOR_TV_COMPOSITE = 0x00000010,
        NVAPI_GPU_CONNECTOR_TV_SVIDEO = 0x00000011,
        NVAPI_GPU_CONNECTOR_TV_HDTV_COMPONENT = 0x00000013,
        NVAPI_GPU_CONNECTOR_TV_SCART = 0x00000014,
        NVAPI_GPU_CONNECTOR_TV_COMPOSITE_SCART_ON_EIAJ4120 = 0x00000016,
        NVAPI_GPU_CONNECTOR_TV_HDTV_EIAJ4120 = 0x00000017,
        NVAPI_GPU_CONNECTOR_PC_POD_HDTV_YPRPB = 0x00000018,
        NVAPI_GPU_CONNECTOR_PC_POD_SVIDEO = 0x00000019,
        NVAPI_GPU_CONNECTOR_PC_POD_COMPOSITE = 0x0000001A,
        NVAPI_GPU_CONNECTOR_DVI_I_TV_SVIDEO = 0x00000020,
        NVAPI_GPU_CONNECTOR_DVI_I_TV_COMPOSITE = 0x00000021,
        NVAPI_GPU_CONNECTOR_DVI_I = 0x00000030,
        NVAPI_GPU_CONNECTOR_DVI_D = 0x00000031,
        NVAPI_GPU_CONNECTOR_ADC = 0x00000032,
        NVAPI_GPU_CONNECTOR_LFH_DVI_I_1 = 0x00000038,
        NVAPI_GPU_CONNECTOR_LFH_DVI_I_2 = 0x00000039,
        NVAPI_GPU_CONNECTOR_SPWG = 0x00000040,
        NVAPI_GPU_CONNECTOR_OEM = 0x00000041,
        NVAPI_GPU_CONNECTOR_DISPLAYPORT_EXTERNAL = 0x00000046,
        NVAPI_GPU_CONNECTOR_DISPLAYPORT_INTERNAL = 0x00000047,
        NVAPI_GPU_CONNECTOR_DISPLAYPORT_MINI_EXT = 0x00000048,
        NVAPI_GPU_CONNECTOR_HDMI_A = 0x00000061,
        NVAPI_GPU_CONNECTOR_HDMI_C_MINI = 0x00000063,
        NVAPI_GPU_CONNECTOR_LFH_DISPLAYPORT_1 = 0x00000064,
        NVAPI_GPU_CONNECTOR_LFH_DISPLAYPORT_2 = 0x00000065,
        NVAPI_GPU_CONNECTOR_VIRTUAL_WFD = 0x00000070, //!< Deprecated.
        NVAPI_GPU_CONNECTOR_USB_C = 0x00000071,
        NVAPI_GPU_CONNECTOR_UNKNOWN = 0xFFFFFFFF,
    } NV_GPU_CONNECTOR_TYPE;

    ////////////////////////////////////////////////////////////////////////////////
    //
    // NvAPI_TVOutput Information
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup tvapi
    //! Used in NV_DISPLAY_TV_OUTPUT_INFO
    typedef enum _NV_DISPLAY_TV_FORMAT
    {
        NV_DISPLAY_TV_FORMAT_NONE = 0,
        NV_DISPLAY_TV_FORMAT_SD_NTSCM = 0x00000001,
        NV_DISPLAY_TV_FORMAT_SD_NTSCJ = 0x00000002,
        NV_DISPLAY_TV_FORMAT_SD_PALM = 0x00000004,
        NV_DISPLAY_TV_FORMAT_SD_PALBDGH = 0x00000008,
        NV_DISPLAY_TV_FORMAT_SD_PALN = 0x00000010,
        NV_DISPLAY_TV_FORMAT_SD_PALNC = 0x00000020,
        NV_DISPLAY_TV_FORMAT_SD_576i = 0x00000100,
        NV_DISPLAY_TV_FORMAT_SD_480i = 0x00000200,
        NV_DISPLAY_TV_FORMAT_ED_480p = 0x00000400,
        NV_DISPLAY_TV_FORMAT_ED_576p = 0x00000800,
        NV_DISPLAY_TV_FORMAT_HD_720p = 0x00001000,
        NV_DISPLAY_TV_FORMAT_HD_1080i = 0x00002000,
        NV_DISPLAY_TV_FORMAT_HD_1080p = 0x00004000,
        NV_DISPLAY_TV_FORMAT_HD_720p50 = 0x00008000,
        NV_DISPLAY_TV_FORMAT_HD_1080p24 = 0x00010000,
        NV_DISPLAY_TV_FORMAT_HD_1080i50 = 0x00020000,
        NV_DISPLAY_TV_FORMAT_HD_1080p50 = 0x00040000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp30 = 0x00080000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp30_3840 = NV_DISPLAY_TV_FORMAT_UHD_4Kp30,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp25 = 0x00100000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp25_3840 = NV_DISPLAY_TV_FORMAT_UHD_4Kp25,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp24 = 0x00200000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp24_3840 = NV_DISPLAY_TV_FORMAT_UHD_4Kp24,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp24_SMPTE = 0x00400000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp50_3840 = 0x00800000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp60_3840 = 0x00900000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp30_4096 = 0x00A00000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp25_4096 = 0x00B00000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp24_4096 = 0x00C00000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp50_4096 = 0x00D00000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp60_4096 = 0x00E00000,
        NV_DISPLAY_TV_FORMAT_UHD_8Kp24_7680 = 0x01000000,
        NV_DISPLAY_TV_FORMAT_UHD_8Kp25_7680 = 0x02000000,
        NV_DISPLAY_TV_FORMAT_UHD_8Kp30_7680 = 0x04000000,
        NV_DISPLAY_TV_FORMAT_UHD_8Kp48_7680 = 0x08000000,
        NV_DISPLAY_TV_FORMAT_UHD_8Kp50_7680 = 0x09000000,
        NV_DISPLAY_TV_FORMAT_UHD_8Kp60_7680 = 0x0A000000,
        NV_DISPLAY_TV_FORMAT_UHD_8Kp100_7680 = 0x0B000000,
        NV_DISPLAY_TV_FORMAT_UHD_8Kp120_7680 = 0x0C000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp48_3840 = 0x0D000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp48_4096 = 0x0E000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp100_4096 = 0x0F000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp100_3840 = 0x10000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp120_4096 = 0x11000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp120_3840 = 0x12000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp100_5120 = 0x13000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp120_5120 = 0x14000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp24_5120 = 0x15000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp25_5120 = 0x16000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp30_5120 = 0x17000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp48_5120 = 0x18000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp50_5120 = 0x19000000,
        NV_DISPLAY_TV_FORMAT_UHD_4Kp60_5120 = 0x20000000,
        NV_DISPLAY_TV_FORMAT_UHD_10Kp24_10240 = 0x21000000,
        NV_DISPLAY_TV_FORMAT_UHD_10Kp25_10240 = 0x22000000,
        NV_DISPLAY_TV_FORMAT_UHD_10Kp30_10240 = 0x23000000,
        NV_DISPLAY_TV_FORMAT_UHD_10Kp48_10240 = 0x24000000,
        NV_DISPLAY_TV_FORMAT_UHD_10Kp50_10240 = 0x25000000,
        NV_DISPLAY_TV_FORMAT_UHD_10Kp60_10240 = 0x26000000,
        NV_DISPLAY_TV_FORMAT_UHD_10Kp100_10240 = 0x27000000,
        NV_DISPLAY_TV_FORMAT_UHD_10Kp120_10240 = 0x28000000,

        NV_DISPLAY_TV_FORMAT_SD_OTHER = 0x30000000,
        NV_DISPLAY_TV_FORMAT_ED_OTHER = 0x40000000,
        NV_DISPLAY_TV_FORMAT_HD_OTHER = 0x50000000,

        NV_DISPLAY_TV_FORMAT_ANY = 0x80000000,

    } NV_DISPLAY_TV_FORMAT;

//! \ingroup dispcontrol
//! @{
#define NVAPI_MAX_VIEW_TARGET 2

#define NVAPI_ADVANCED_MAX_VIEW_TARGET 4


#ifndef _NV_TARGET_VIEW_MODE_
#define _NV_TARGET_VIEW_MODE_


    //! Used in NvAPI_SetView().
    typedef enum _NV_TARGET_VIEW_MODE
    {
        NV_VIEW_MODE_STANDARD = 0,
        NV_VIEW_MODE_CLONE = 1,
        NV_VIEW_MODE_HSPAN = 2,
        NV_VIEW_MODE_VSPAN = 3,
        NV_VIEW_MODE_DUALVIEW = 4,
        NV_VIEW_MODE_MULTIVIEW = 5,
    } NV_TARGET_VIEW_MODE;
#endif

    //! @}

    // Following definitions are used in NvAPI_SetViewEx.

    //! Scaling modes - used in NvAPI_SetViewEx().
    //! \ingroup dispcontrol
    typedef enum _NV_SCALING
    {
        NV_SCALING_DEFAULT = 0, //!< No change

        // New Scaling Declarations
        NV_SCALING_GPU_SCALING_TO_CLOSEST = 1,                   //!< Balanced  - Full Screen
        NV_SCALING_GPU_SCALING_TO_NATIVE = 2,                    //!< Force GPU - Full Screen
        NV_SCALING_GPU_SCANOUT_TO_NATIVE = 3,                    //!< Force GPU - Centered\No Scaling
        NV_SCALING_GPU_SCALING_TO_ASPECT_SCANOUT_TO_NATIVE = 5,  //!< Force GPU - Aspect Ratio
        NV_SCALING_GPU_SCALING_TO_ASPECT_SCANOUT_TO_CLOSEST = 6, //!< Balanced  - Aspect Ratio
        NV_SCALING_GPU_SCANOUT_TO_CLOSEST = 7,                   //!< Balanced  - Centered\No Scaling
        NV_SCALING_GPU_INTEGER_ASPECT_SCALING = 8,               //!< Force GPU - Integer Scaling

        // Legacy Declarations
        NV_SCALING_MONITOR_SCALING = NV_SCALING_GPU_SCALING_TO_CLOSEST,
        NV_SCALING_ADAPTER_SCALING = NV_SCALING_GPU_SCALING_TO_NATIVE,
        NV_SCALING_CENTERED = NV_SCALING_GPU_SCANOUT_TO_NATIVE,
        NV_SCALING_ASPECT_SCALING = NV_SCALING_GPU_SCALING_TO_ASPECT_SCANOUT_TO_NATIVE,

        NV_SCALING_CUSTOMIZED = 255 //!< For future use
    } NV_SCALING;

    //! Rotate modes- used in NvAPI_SetViewEx().

    //! \ingroup dispcontrol
    typedef enum _NV_ROTATE
    {
        NV_ROTATE_0 = 0,
        NV_ROTATE_90 = 1,
        NV_ROTATE_180 = 2,
        NV_ROTATE_270 = 3,
        NV_ROTATE_IGNORED = 4,
    } NV_ROTATE;

//! Color formats- used in NvAPI_SetViewEx().
//! \ingroup dispcontrol
#define NVFORMAT_MAKEFOURCC(ch0, ch1, ch2, ch3)       \

    ((NvU32)(NvU8)(ch0) | ((NvU32)(NvU8)(ch1) << 8) | \
     ((NvU32)(NvU8)(ch2) << 16) | ((NvU32)(NvU8)(ch3) << 24))

    //! Color formats- used in NvAPI_SetViewEx().
    //! \ingroup dispcontrol
    typedef enum _NV_FORMAT
    {
        NV_FORMAT_UNKNOWN = 0,         //!< unknown. Driver will choose one as following value.
        NV_FORMAT_P8 = 41,             //!< for 8bpp mode
        NV_FORMAT_R5G6B5 = 23,         //!< for 16bpp mode
        NV_FORMAT_A8R8G8B8 = 21,       //!< for 32bpp mode
        NV_FORMAT_A16B16G16R16F = 113, //!< for 64bpp(floating point) mode.

    } NV_FORMAT;

    // TV standard

    typedef struct
    {
        float x; //!<  x-coordinate of the viewport top-left point
        float y; //!<  y-coordinate of the viewport top-left point
        float w; //!<  Width of the viewport
        float h; //!<  Height of the viewport
    } NV_VIEWPORTF;

    //! \ingroup dispcontrol
    //! The timing override is not supported yet; must be set to _AUTO. \n

    typedef enum _NV_TIMING_OVERRIDE
    {
        NV_TIMING_OVERRIDE_CURRENT = 0,   //!< get the current timing
        NV_TIMING_OVERRIDE_AUTO,          //!< the timing the driver will use based the current policy
        NV_TIMING_OVERRIDE_EDID,          //!< EDID timing
        NV_TIMING_OVERRIDE_DMT,           //!< VESA DMT timing
        NV_TIMING_OVERRIDE_DMT_RB,        //!< VESA DMT timing with reduced blanking
        NV_TIMING_OVERRIDE_CVT,           //!< VESA CVT timing
        NV_TIMING_OVERRIDE_CVT_RB,        //!< VESA CVT timing with reduced blanking
        NV_TIMING_OVERRIDE_GTF,           //!< VESA GTF timing
        NV_TIMING_OVERRIDE_EIA861,        //!< EIA 861x pre-defined timing
        NV_TIMING_OVERRIDE_ANALOG_TV,     //!< analog SD/HDTV timing
        NV_TIMING_OVERRIDE_CUST,          //!< NV custom timings
        NV_TIMING_OVERRIDE_NV_PREDEFINED, //!< NV pre-defined timing (basically the PsF timings)
        NV_TIMING_OVERRIDE_NV_PSF = NV_TIMING_OVERRIDE_NV_PREDEFINED,
        NV_TIMING_OVERRIDE_NV_ASPR,
        NV_TIMING_OVERRIDE_SDI, //!< Override for SDI timing

        NV_TIMING_OVRRIDE_MAX,
    } NV_TIMING_OVERRIDE;

#ifndef NV_TIMING_STRUCTS_DEFINED
#define NV_TIMING_STRUCTS_DEFINED


    //***********************
    // The Timing Structure
    //***********************
    //
    //! \ingroup dispcontrol
    //!  NVIDIA-specific timing extras \n
    //! Used in NV_TIMING.
    typedef struct tagNV_TIMINGEXT
    {
        NvU32 flag;    //!< Reserved for NVIDIA hardware-based enhancement, such as double-scan.
        NvU16 rr;      //!< Logical refresh rate to present
        NvU32 rrx1k;   //!< Physical vertical refresh rate in 0.001Hz
        NvU32 aspect;  //!< Display aspect ratio Hi(aspect):horizontal-aspect, Low(aspect):vertical-aspect
        NvU16 rep;     //!< Bit-wise pixel repetition factor: 0x1:no pixel repetition; 0x2:each pixel repeats twice horizontally,..
        NvU32 status;  //!< Timing standard
        NvU8 name[40]; //!< Timing name
    } NV_TIMINGEXT;

    //! \ingroup dispcontrol
    //! The very basic timing structure based on the VESA standard:
    //! \code
    //!            |<----------------------------htotal--------------------------->|
    //!             ---------"active" video-------->|<-------blanking------>|<-----
    //!            |<-------hvisible-------->|<-hb->|<-hfp->|<-hsw->|<-hbp->|<-hb->|
    //! --------- -+-------------------------+      |       |       |       |      |
    //!   A      A |                         |      |       |       |       |      |
    //!   :      : |                         |      |       |       |       |      |
    //!   :      : |                         |      |       |       |       |      |
    //!   :vertical|    addressable video    |      |       |       |       |      |
    //!   : visible|                         |      |       |       |       |      |
    //!   :      : |                         |      |       |       |       |      |
    //!   :      : |                         |      |       |       |       |      |
    //! vertical V |                         |      |       |       |       |      |
    //!  total   --+-------------------------+      |       |       |       |      |
    //!   :      vb         border                  |       |       |       |      |
    //!   :      -----------------------------------+       |       |       |      |
    //!   :      vfp        front porch                     |       |       |      |
    //!   :      -------------------------------------------+       |       |      |
    //!   :      vsw        sync width                              |       |      |
    //!   :      ---------------------------------------------------+       |      |
    //!   :      vbp        back porch                                      |      |
    //!   :      -----------------------------------------------------------+      |
    //!   V      vb         border                                                 |
    //! ---------------------------------------------------------------------------+
    //! \endcode
    typedef struct _NV_TIMING
    {
        // VESA scan out timing parameters:
        NvU16 HVisible;    //!< horizontal visible
        NvU16 HBorder;     //!< horizontal border
        NvU16 HFrontPorch; //!< horizontal front porch
        NvU16 HSyncWidth;  //!< horizontal sync width
        NvU16 HTotal;      //!< horizontal total
        NvU8 HSyncPol;     //!< horizontal sync polarity: 1-negative, 0-positive

        NvU16 VVisible;    //!< vertical visible
        NvU16 VBorder;     //!< vertical border
        NvU16 VFrontPorch; //!< vertical front porch
        NvU16 VSyncWidth;  //!< vertical sync width
        NvU16 VTotal;      //!< vertical total
        NvU8 VSyncPol;     //!< vertical sync polarity: 1-negative, 0-positive

        NvU16 interlaced; //!< 1-interlaced, 0-progressive
        NvU32 pclk;       //!< pixel clock in 10 kHz

        // other timing related extras
        NV_TIMINGEXT etc;
    } NV_TIMING;
#endif // NV_TIMING_STRUCTS_DEFINED

//! \addtogroup dispcontrol
//! Timing-related constants
//! @{
#define NV_TIMING_H_SYNC_POSITIVE 0

#define NV_TIMING_H_SYNC_NEGATIVE 1

#define NV_TIMING_H_SYNC_DEFAULT NV_TIMING_H_SYNC_NEGATIVE

//
#define NV_TIMING_V_SYNC_POSITIVE 0

#define NV_TIMING_V_SYNC_NEGATIVE 1

#define NV_TIMING_V_SYNC_DEFAULT NV_TIMING_V_SYNC_POSITIVE

//
#define NV_TIMING_PROGRESSIVE 0

#define NV_TIMING_INTERLACED 1

#define NV_TIMING_INTERLACED_EXTRA_VBLANK_ON_FIELD2 1

#define NV_TIMING_INTERLACED_NO_EXTRA_VBLANK_ON_FIELD2 2

    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_SetView
    //
    //! \fn NvAPI_SetView(NvDisplayHandle hNvDisplay, NV_VIEW_TARGET_INFO *pTargetInfo, NV_TARGET_VIEW_MODE targetView)
    //!  This function lets the caller modify the target display arrangement of the selected source display handle in any nView mode.
    //!  It can also modify or extend the source display in Dualview mode.
    //!  \note Maps the selected source to the associated target Ids.
    //!  \note Display PATH with this API is limited to single GPU. DUALVIEW across GPUs cannot be enabled with this API.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_SetDisplayConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 90
    //!
    //! \param [in]  hNvDisplay       NVIDIA Display selection. #NVAPI_DEFAULT_HANDLE is not allowed, it has to be a handle enumerated with NvAPI_EnumNVidiaDisplayHandle().
    //! \param [in]  pTargetInfo      Pointer to array of NV_VIEW_TARGET_INFO, specifying device properties in this view.
    //!                               The first device entry in the array is the physical primary.
    //!                               The device entry with the lowest source id is the desktop primary.
    //! \param [in]  targetCount      Count of target devices specified in pTargetInfo.
    //! \param [in]  targetView       Target view selected from NV_TARGET_VIEW_MODE.
    //!
    //! \retval  NVAPI_OK               Completed request
    //! \retval  NVAPI_ERROR            Miscellaneous error occurred
    //! \retval  NVAPI_INVALID_ARGUMENT Invalid input parameter.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup dispcontrol
    //! Used in NvAPI_SetView() and NvAPI_GetView()
    typedef struct
    {
        NvU32 version; //!< (IN) structure version
        NvU32 count;   //!< (IN) target count
        struct
        {
            NvU32 deviceMask;        //!< (IN/OUT) Device mask
            NvU32 sourceId;          //!< (IN/OUT) Source ID - values will be based on the number of heads exposed per GPU.
            NvU32 bPrimary : 1;      //!< (OUT) Indicates if this is the GPU's primary view target. This is not the desktop GDI primary.
                                     //!< NvAPI_SetView automatically selects the first target in NV_VIEW_TARGET_INFO index 0 as the GPU's primary view.
            NvU32 bInterlaced : 1;   //!< (IN/OUT) Indicates if the timing being used on this monitor is interlaced.
            NvU32 bGDIPrimary : 1;   //!< (IN/OUT) Indicates if this is the desktop GDI primary.
            NvU32 bForceModeSet : 1; //!< (IN) Used only on Win7 and higher during a call to NvAPI_SetView(). Turns off optimization & forces OS to set supplied mode.
        } target[NVAPI_MAX_VIEW_TARGET];
    } NV_VIEW_TARGET_INFO;

//! \ingroup dispcontrol
#define NV_VIEW_TARGET_INFO_VER MAKE_NVAPI_VERSION(NV_VIEW_TARGET_INFO, 2)


    //! \ingroup dispcontrol
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_SetDisplayConfig.")
        NVAPI_INTERFACE NvAPI_SetView(NvDisplayHandle hNvDisplay, NV_VIEW_TARGET_INFO *pTargetInfo, NV_TARGET_VIEW_MODE targetView);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME:   NvAPI_SetViewEx
//
//!  \fn NvAPI_SetViewEx(NvDisplayHandle hNvDisplay, NV_DISPLAY_PATH_INFO *pPathInfo, NV_TARGET_VIEW_MODE displayView)
//!  This function lets caller to modify the display arrangement for selected source display handle in any of the nview modes.
//!  It also allows to modify or extend the source display in dualview mode.
//!   \note Maps the selected source to the associated target Ids.
//!   \note Display PATH with this API is limited to single GPU. DUALVIEW across GPUs cannot be enabled with this API.
//!
//! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_SetDisplayConfig.
//! SUPPORTED OS:  Windows 7 and higher
//!
//!
//! \since Release: 95
//!
//! \param [in]  hNvDisplay   NVIDIA Display selection. #NVAPI_DEFAULT_HANDLE is not allowed, it has to be a handle enumerated with
//!                           NvAPI_EnumNVidiaDisplayHandle().
//! \param [in]  pPathInfo    Pointer to array of NV_VIEW_PATH_INFO, specifying device properties in this view.
//!                           The first device entry in the array is the physical primary.
//!                           The device entry with the lowest source id is the desktop primary.
//! \param [in]  pathCount    Count of paths specified in pPathInfo.
//! \param [in]  displayView  Display view selected from NV_TARGET_VIEW_MODE.
//!
//! \retval  NVAPI_OK                Completed request
//! \retval  NVAPI_ERROR             Miscellaneous error occurred
//! \retval  NVAPI_INVALID_ARGUMENT  Invalid input parameter.
//
///////////////////////////////////////////////////////////////////////////////

//! \ingroup dispcontrol
#define NVAPI_MAX_DISPLAY_PATH NVAPI_MAX_VIEW_TARGET


//! \ingroup dispcontrol
#define NVAPI_ADVANCED_MAX_DISPLAY_PATH NVAPI_ADVANCED_MAX_VIEW_TARGET


    //! \ingroup dispcontrol
    //! Used in NV_DISPLAY_PATH_INFO.
    typedef struct
    {
        NvU32 deviceMask;                //!< (IN) Device mask
        NvU32 sourceId;                  //!< (IN) Values will be based on the number of heads exposed per GPU(0, 1?)
        NvU32 bPrimary : 1;              //!< (IN/OUT) Indicates if this is the GPU's primary view target. This is not the desktop GDI primary.
                                         //!< NvAPI_SetViewEx() automatically selects the first target in NV_DISPLAY_PATH_INFO index 0 as the GPU's primary view.
        NV_GPU_CONNECTOR_TYPE connector; //!< (IN) Specify connector type. For TV only.

        // source mode information
        NvU32 width;           //!< (IN) Width of the mode
        NvU32 height;          //!< (IN) Height of the mode
        NvU32 depth;           //!< (IN) Depth of the mode
        NV_FORMAT colorFormat; //!<      Color format if it needs to be specified. Not used now.

        // rotation setting of the mode
        NV_ROTATE rotation; //!< (IN) Rotation setting.

        // the scaling mode
        NV_SCALING scaling; //!< (IN) Scaling setting

        // Timing info
        NvU32 refreshRate;    //!< (IN) Refresh rate of the mode
        NvU32 interlaced : 1; //!< (IN) Interlaced mode flag

        NV_DISPLAY_TV_FORMAT tvFormat; //!< (IN) To choose the last TV format set this value to NV_DISPLAY_TV_FORMAT_NONE

        // Windows desktop position
        NvU32 posx;            //!< (IN/OUT) X-offset of this display on the Windows desktop
        NvU32 posy;            //!< (IN/OUT) Y-offset of this display on the Windows desktop
        NvU32 bGDIPrimary : 1; //!< (IN/OUT) Indicates if this is the desktop GDI primary.

        NvU32 bForceModeSet : 1; //!< (IN) Used only on Win7 and higher during a call to NvAPI_SetViewEx(). Turns off optimization & forces OS to set supplied mode.
        NvU32 bFocusDisplay : 1; //!< (IN) If set, this display path should have the focus after the GPU topology change
        NvU32 gpuId : 24;        //!< (IN) the physical display/target Gpu id which is the owner of the scan out (for SLI multimon, display from the slave Gpu)

    } NV_DISPLAY_PATH;

    //! \ingroup dispcontrol
    //! Used in NvAPI_SetViewEx() and NvAPI_GetViewEx().
    typedef struct
    {
        NvU32 version; //!< (IN) Structure version
        NvU32 count;   //!< (IN) Path count
        NV_DISPLAY_PATH path[NVAPI_MAX_DISPLAY_PATH];
    } NV_DISPLAY_PATH_INFO_V3;

    //! \ingroup dispcontrol
    //! Used in NvAPI_SetViewEx() and NvAPI_GetViewEx().
    typedef struct
    {
        NvU32 version; //!< (IN) Structure version
        NvU32 count;   //!< (IN) Path count
        NV_DISPLAY_PATH path[NVAPI_ADVANCED_MAX_DISPLAY_PATH];
    } NV_DISPLAY_PATH_INFO;

//! \addtogroup dispcontrol
//! Macro for constructing the version fields of NV_DISPLAY_PATH_INFO
//! @{
#define NV_DISPLAY_PATH_INFO_VER NV_DISPLAY_PATH_INFO_VER4

#define NV_DISPLAY_PATH_INFO_VER4 MAKE_NVAPI_VERSION(NV_DISPLAY_PATH_INFO, 4)

#define NV_DISPLAY_PATH_INFO_VER3 MAKE_NVAPI_VERSION(NV_DISPLAY_PATH_INFO, 3)

#define NV_DISPLAY_PATH_INFO_VER2 MAKE_NVAPI_VERSION(NV_DISPLAY_PATH_INFO, 2)

#define NV_DISPLAY_PATH_INFO_VER1 MAKE_NVAPI_VERSION(NV_DISPLAY_PATH_INFO, 1)

    //! @}
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_SetViewEx
    //
    //!  \fn NvAPI_SetViewEx(NvDisplayHandle hNvDisplay, NV_DISPLAY_PATH_INFO *pPathInfo, NV_TARGET_VIEW_MODE displayView)
    //!  This function lets caller to modify the display arrangement for selected source display handle in any of the nview modes.
    //!  It also allows to modify or extend the source display in dualview mode.
    //!   \note Maps the selected source to the associated target Ids.
    //!   \note Display PATH with this API is limited to single GPU. DUALVIEW across GPUs cannot be enabled with this API.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_SetDisplayConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 95
    //!
    //! \param [in]  hNvDisplay   NVIDIA Display selection. #NVAPI_DEFAULT_HANDLE is not allowed, it has to be a handle enumerated with
    //!                           NvAPI_EnumNVidiaDisplayHandle().
    //! \param [in]  pPathInfo    Pointer to array of NV_VIEW_PATH_INFO, specifying device properties in this view.
    //!                           The first device entry in the array is the physical primary.
    //!                           The device entry with the lowest source id is the desktop primary.
    //! \param [in]  pathCount    Count of paths specified in pPathInfo.
    //! \param [in]  displayView  Display view selected from NV_TARGET_VIEW_MODE.
    //!
    //! \retval  NVAPI_OK                Completed request
    //! \retval  NVAPI_ERROR             Miscellaneous error occurred
    //! \retval  NVAPI_INVALID_ARGUMENT  Invalid input parameter.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup dispcontrol
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_SetDisplayConfig.")
        NVAPI_INTERFACE NvAPI_SetViewEx(NvDisplayHandle hNvDisplay, NV_DISPLAY_PATH_INFO *pPathInfo, NV_TARGET_VIEW_MODE displayView);

    ///////////////////////////////////////////////////////////////////////////////
    // SetDisplayConfig/GetDisplayConfig
    ///////////////////////////////////////////////////////////////////////////////
    //! \ingroup dispcontrol

    typedef struct _NV_POSITION
    {
        NvS32 x;
        NvS32 y;
    } NV_POSITION;

    //! \ingroup dispcontrol
    typedef struct _NV_RESOLUTION
    {
        NvU32 width;
        NvU32 height;
        NvU32 colorDepth;
    } NV_RESOLUTION;

    //! \ingroup dispcontrol
    typedef struct _NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_V1
    {
        NvU32 version;

        // Rotation and Scaling
        NV_ROTATE rotation; //!< (IN) rotation setting.
        NV_SCALING scaling; //!< (IN) scaling setting.

        // Refresh Rate
        NvU32 refreshRate1K; //!< (IN) Non-interlaced Refresh Rate of the mode, multiplied by 1000, 0 = ignored
                             //!< This is the value which driver reports to the OS.
        // Flags
        NvU32 interlaced : 1; //!< (IN) Interlaced mode flag, ignored if refreshRate == 0
        NvU32 primary : 1;    //!< (IN) Declares primary display in clone configuration. This is *NOT* GDI Primary.
                              //!< Only one target can be primary per source. If no primary is specified, the first
                              //!< target will automatically be primary.
#ifdef NV_PAN_AND_SCAN_DEFINED
        NvU32 isPanAndScanTarget : 1; //!< Whether on this target Pan and Scan is enabled or has to be enabled. Valid only
                                      //!< when the target is part of clone topology.
#else
    NvU32 reservedBit1 : 1;
#endif
        NvU32 disableVirtualModeSupport : 1;
        NvU32 isPreferredUnscaledTarget : 1;
        NvU32 reserved : 27;
        // TV format information
        NV_GPU_CONNECTOR_TYPE connector; //!< Specify connector type. For TV only, ignored if tvFormat == NV_DISPLAY_TV_FORMAT_NONE
        NV_DISPLAY_TV_FORMAT tvFormat;   //!< (IN) to choose the last TV format set this value to NV_DISPLAY_TV_FORMAT_NONE
                                         //!< In case of NvAPI_DISP_GetDisplayConfig(), this field will indicate the currently applied TV format;
                                         //!< if no TV format is applied, this field will have NV_DISPLAY_TV_FORMAT_NONE value.
                                         //!< In case of NvAPI_DISP_SetDisplayConfig(), this field should only be set in case of TVs;
                                         //!< for other displays this field will be ignored and resolution & refresh rate specified in input will be used to apply the TV format.

        // Backend (raster) timing standard
        NV_TIMING_OVERRIDE timingOverride; //!< Ignored if timingOverride == NV_TIMING_OVERRIDE_CURRENT
        NV_TIMING timing;                  //!< Scan out timing, valid only if timingOverride == NV_TIMING_OVERRIDE_CUST
                                           //!< The value NV_TIMING::NV_TIMINGEXT::rrx1k is obtained from the EDID. The driver may
                                           //!< tweak this value for HDTV, stereo, etc., before reporting it to the OS.
    } NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_V1;

    //! \ingroup dispcontrol
    typedef NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_V1 NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO;

//! \ingroup dispcontrol
#define NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_VER1 MAKE_NVAPI_VERSION(NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_V1, 1)


//! \ingroup dispcontrol
#define NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_VER NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_VER1


    //! \ingroup dispcontrol
    typedef struct _NV_DISPLAYCONFIG_PATH_TARGET_INFO_V1
    {
        NvU32 displayId;                                     //!< Display ID
        NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO *details; //!< May be NULL if no advanced settings are required. NULL for Non-NVIDIA Display.
    } NV_DISPLAYCONFIG_PATH_TARGET_INFO_V1;

    //! \ingroup dispcontrol
    typedef struct _NV_DISPLAYCONFIG_PATH_TARGET_INFO_V2
    {
        NvU32 displayId;                                     //!< Display ID
        NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO *details; //!< May be NULL if no advanced settings are required
        NvU32 targetId;                                      //!< Windows CCD target ID. Must be present only for non-NVIDIA adapter, for NVIDIA adapter this parameter is ignored.
    } NV_DISPLAYCONFIG_PATH_TARGET_INFO_V2;

    //! \ingroup dispcontrol
    //! As version is not defined for this structure, we will be using version of NV_DISPLAYCONFIG_PATH_INFO
    typedef NV_DISPLAYCONFIG_PATH_TARGET_INFO_V2 NV_DISPLAYCONFIG_PATH_TARGET_INFO;

    //! \ingroup dispcontrol
    typedef enum _NV_DISPLAYCONFIG_SPANNING_ORIENTATION
    {
        NV_DISPLAYCONFIG_SPAN_NONE = 0,
        NV_DISPLAYCONFIG_SPAN_HORIZONTAL = 1,
        NV_DISPLAYCONFIG_SPAN_VERTICAL = 2,
    } NV_DISPLAYCONFIG_SPANNING_ORIENTATION;

    //! \ingroup dispcontrol
    typedef struct _NV_DISPLAYCONFIG_SOURCE_MODE_INFO_V1
    {
        NV_RESOLUTION resolution;
        NV_FORMAT colorFormat;                                     //!< Ignored at present, must be NV_FORMAT_UNKNOWN (0)
        NV_POSITION position;                                      //!< Is all positions are 0 or invalid, displays will be automatically
                                                                   //!< positioned from left to right with GDI Primary at 0,0, and all
                                                                   //!< other displays in the order of the path array.
        NV_DISPLAYCONFIG_SPANNING_ORIENTATION spanningOrientation; //!< Spanning is only supported on XP
        NvU32 bGDIPrimary : 1;
        NvU32 bSLIFocus : 1;
        NvU32 reserved : 30; //!< Must be 0
    } NV_DISPLAYCONFIG_SOURCE_MODE_INFO_V1;

    //! \ingroup dispcontrol
    typedef struct _NV_DISPLAYCONFIG_PATH_INFO_V1
    {
        NvU32 version;
        NvU32 reserved_sourceId; //!< This field is reserved. There is ongoing debate if we need this field.
                                 //!< Identifies sourceIds used by Windows. If all sourceIds are 0,
                                 //!< these will be computed automatically.
        NvU32 targetInfoCount;   //!< Number of elements in targetInfo array
        NV_DISPLAYCONFIG_PATH_TARGET_INFO_V1 *targetInfo;
        NV_DISPLAYCONFIG_SOURCE_MODE_INFO_V1 *sourceModeInfo; //!< May be NULL if mode info is not important
    } NV_DISPLAYCONFIG_PATH_INFO_V1;

//! \ingroup dispcontrol
//! This define is temporary and must be removed once DVS failure is fixed.
#define _NV_DISPLAYCONFIG_PATH_INFO_V2 _NV_DISPLAYCONFIG_PATH_INFO


    //! \ingroup dispcontrol
    typedef struct _NV_DISPLAYCONFIG_PATH_INFO_V2
    {
        NvU32 version;
        union
        {
            NvU32 sourceId;          //!< Identifies sourceId used by Windows CCD. This can be optionally set.
            NvU32 reserved_sourceId; //!< Only for compatibility
        };

        NvU32 targetInfoCount; //!< Number of elements in targetInfo array
        NV_DISPLAYCONFIG_PATH_TARGET_INFO_V2 *targetInfo;
        NV_DISPLAYCONFIG_SOURCE_MODE_INFO_V1 *sourceModeInfo; //!< May be NULL if mode info is not important
        NvU32 IsNonNVIDIAAdapter : 1;                         //!< True for non-NVIDIA adapter.
        NvU32 reserved : 31;                                  //!< Must be 0
        void *pOSAdapterID;                                   //!< Used by Non-NVIDIA adapter for pointer to OS Adapter of LUID
                                                              //!< type, type casted to void *.
    } NV_DISPLAYCONFIG_PATH_INFO_V2;

//! \ingroup dispcontrol
#define NV_DISPLAYCONFIG_PATH_INFO_VER1 MAKE_NVAPI_VERSION(NV_DISPLAYCONFIG_PATH_INFO_V1, 1)


//! \ingroup dispcontrol
#define NV_DISPLAYCONFIG_PATH_INFO_VER2 MAKE_NVAPI_VERSION(NV_DISPLAYCONFIG_PATH_INFO_V2, 2)


#ifndef NV_DISPLAYCONFIG_PATH_INFO_VER

    typedef NV_DISPLAYCONFIG_PATH_INFO_V2 NV_DISPLAYCONFIG_PATH_INFO;

#define NV_DISPLAYCONFIG_PATH_INFO_VER NV_DISPLAYCONFIG_PATH_INFO_VER2


    typedef NV_DISPLAYCONFIG_SOURCE_MODE_INFO_V1 NV_DISPLAYCONFIG_SOURCE_MODE_INFO;

#endif

    //! \ingroup dispcontrol
    typedef enum _NV_DISPLAYCONFIG_FLAGS
    {
        NV_DISPLAYCONFIG_VALIDATE_ONLY = 0x00000001,
        NV_DISPLAYCONFIG_SAVE_TO_PERSISTENCE = 0x00000002,
        NV_DISPLAYCONFIG_DRIVER_RELOAD_ALLOWED = 0x00000004,  //!< Driver reload is permitted if necessary
        NV_DISPLAYCONFIG_FORCE_MODE_ENUMERATION = 0x00000008, //!< Refresh OS mode list.
        NV_FORCE_COMMIT_VIDPN = 0x00000010,                   //!< Tell OS to avoid optimizing CommitVidPn call during a modeset
    } NV_DISPLAYCONFIG_FLAGS;

#define NVAPI_UNICODE_STRING_MAX 2048

#define NVAPI_BINARY_DATA_MAX 4096


    typedef NvU16 NvAPI_UnicodeString[NVAPI_UNICODE_STRING_MAX];
    typedef const NvU16 *NvAPI_LPCWSTR;

// Common

//! \ingroup gpuclock
//! @{
#define NVAPI_MAX_GPU_CLOCKS 32

#define NVAPI_MAX_GPU_PUBLIC_CLOCKS 32

#define NVAPI_MAX_GPU_PERF_CLOCKS 32

#define NVAPI_MAX_GPU_PERF_VOLTAGES 16

#define NVAPI_MAX_GPU_PERF_PSTATES 16

    //! @}

    //! \ingroup gpuclock
    typedef enum _NV_GPU_PERF_VOLTAGE_INFO_DOMAIN_ID
    {
        NVAPI_GPU_PERF_VOLTAGE_INFO_DOMAIN_CORE = 0,
        NVAPI_GPU_PERF_VOLTAGE_INFO_DOMAIN_UNDEFINED = NVAPI_MAX_GPU_PERF_VOLTAGES,
    } NV_GPU_PERF_VOLTAGE_INFO_DOMAIN_ID;

    //! \ingroup gpuclock
    typedef enum _NV_GPU_PUBLIC_CLOCK_ID
    {
        NVAPI_GPU_PUBLIC_CLOCK_GRAPHICS = 0,
        NVAPI_GPU_PUBLIC_CLOCK_MEMORY = 4,
        NVAPI_GPU_PUBLIC_CLOCK_PROCESSOR = 7,
        NVAPI_GPU_PUBLIC_CLOCK_VIDEO = 8,
        NVAPI_GPU_PUBLIC_CLOCK_UNDEFINED = NVAPI_MAX_GPU_PUBLIC_CLOCKS,
    } NV_GPU_PUBLIC_CLOCK_ID;

    //! \addtogroup gpupstate
    //! @{

    typedef enum _NV_GPU_PERF_PSTATE_ID
    {
        NVAPI_GPU_PERF_PSTATE_P0 = 0,
        NVAPI_GPU_PERF_PSTATE_P1,
        NVAPI_GPU_PERF_PSTATE_P2,
        NVAPI_GPU_PERF_PSTATE_P3,
        NVAPI_GPU_PERF_PSTATE_P4,
        NVAPI_GPU_PERF_PSTATE_P5,
        NVAPI_GPU_PERF_PSTATE_P6,
        NVAPI_GPU_PERF_PSTATE_P7,
        NVAPI_GPU_PERF_PSTATE_P8,
        NVAPI_GPU_PERF_PSTATE_P9,
        NVAPI_GPU_PERF_PSTATE_P10,
        NVAPI_GPU_PERF_PSTATE_P11,
        NVAPI_GPU_PERF_PSTATE_P12,
        NVAPI_GPU_PERF_PSTATE_P13,
        NVAPI_GPU_PERF_PSTATE_P14,
        NVAPI_GPU_PERF_PSTATE_P15,
        NVAPI_GPU_PERF_PSTATE_UNDEFINED = NVAPI_MAX_GPU_PERF_PSTATES,
        NVAPI_GPU_PERF_PSTATE_ALL,

    } NV_GPU_PERF_PSTATE_ID;

    //! @}

    //! \addtogroup gpupstate
    //! @{

#define NVAPI_MAX_GPU_PSTATE20_PSTATES 16

#define NVAPI_MAX_GPU_PSTATE20_CLOCKS 8

#define NVAPI_MAX_GPU_PSTATE20_BASE_VOLTAGES 4


    //! Used to identify clock type
    typedef enum
    {
        //! Clock domains that use single frequency value within given pstate
        NVAPI_GPU_PERF_PSTATE20_CLOCK_TYPE_SINGLE = 0,

        //! Clock domains that allow range of frequency values within given pstate
        NVAPI_GPU_PERF_PSTATE20_CLOCK_TYPE_RANGE,
    } NV_GPU_PERF_PSTATE20_CLOCK_TYPE_ID;

    //! Used to describe both voltage and frequency deltas
    typedef struct
    {
        //! Value of parameter delta (in respective units [kHz, uV])
        NvS32 value;

        struct
        {
            //! Min value allowed for parameter delta (in respective units [kHz, uV])
            NvS32 min;

            //! Max value allowed for parameter delta (in respective units [kHz, uV])
            NvS32 max;
        } valueRange;
    } NV_GPU_PERF_PSTATES20_PARAM_DELTA;

    //! Used to describe single clock entry
    typedef struct
    {
        //! ID of the clock domain
        NV_GPU_PUBLIC_CLOCK_ID domainId;

        //! Clock type ID
        NV_GPU_PERF_PSTATE20_CLOCK_TYPE_ID typeId;
        NvU32 bIsEditable : 1;

        //! These bits are reserved for future use (must be always 0)
        NvU32 reserved : 31;

        //! Current frequency delta from nominal settings in (kHz)
        NV_GPU_PERF_PSTATES20_PARAM_DELTA freqDelta_kHz;

        //! Clock domain type dependant information
        union
        {
            struct
            {
                //! Clock frequency within given pstate in (kHz)
                NvU32 freq_kHz;
            } single;

            struct
            {
                //! Min clock frequency within given pstate in (kHz)
                NvU32 minFreq_kHz;

                //! Max clock frequency within given pstate in (kHz)
                NvU32 maxFreq_kHz;

                //! Voltage domain ID and value range in (uV) required for this clock
                NV_GPU_PERF_VOLTAGE_INFO_DOMAIN_ID domainId;
                NvU32 minVoltage_uV;
                NvU32 maxVoltage_uV;
            } range;
        } data;
    } NV_GPU_PSTATE20_CLOCK_ENTRY_V1;

    //! Used to describe single base voltage entry
    typedef struct
    {
        //! ID of the voltage domain
        NV_GPU_PERF_VOLTAGE_INFO_DOMAIN_ID domainId;
        NvU32 bIsEditable : 1;

        //! These bits are reserved for future use (must be always 0)
        NvU32 reserved : 31;

        //! Current base voltage settings in [uV]
        NvU32 volt_uV;

        NV_GPU_PERF_PSTATES20_PARAM_DELTA voltDelta_uV; // Current base voltage delta from nominal settings in [uV]
    } NV_GPU_PSTATE20_BASE_VOLTAGE_ENTRY_V1;

    //! Used in NvAPI_GPU_GetPstates20() interface call.

    typedef struct
    {
        //! Version info of the structure (NV_GPU_PERF_PSTATES20_INFO_VER<n>)
        NvU32 version;

        NvU32 bIsEditable : 1;

        //! These bits are reserved for future use (must be always 0)
        NvU32 reserved : 31;

        //! Number of populated pstates
        NvU32 numPstates;

        //! Number of populated clocks (per pstate)
        NvU32 numClocks;

        //! Number of populated base voltages (per pstate)
        NvU32 numBaseVoltages;

        //! Performance state (P-State) settings
        //! Valid index range is 0 to numPstates-1
        struct
        {
            //! ID of the P-State
            NV_GPU_PERF_PSTATE_ID pstateId;

            NvU32 bIsEditable : 1;

            //! These bits are reserved for future use (must be always 0)
            NvU32 reserved : 31;

            //! Array of clock entries
            //! Valid index range is 0 to numClocks-1
            NV_GPU_PSTATE20_CLOCK_ENTRY_V1 clocks[NVAPI_MAX_GPU_PSTATE20_CLOCKS];

            //! Array of baseVoltage entries
            //! Valid index range is 0 to numBaseVoltages-1
            NV_GPU_PSTATE20_BASE_VOLTAGE_ENTRY_V1 baseVoltages[NVAPI_MAX_GPU_PSTATE20_BASE_VOLTAGES];
        } pstates[NVAPI_MAX_GPU_PSTATE20_PSTATES];
    } NV_GPU_PERF_PSTATES20_INFO_V1;

    //! Used in NvAPI_GPU_GetPstates20() interface call.

    typedef struct _NV_GPU_PERF_PSTATES20_INFO_V2
    {
        //! Version info of the structure (NV_GPU_PERF_PSTATES20_INFO_VER<n>)
        NvU32 version;

        NvU32 bIsEditable : 1;

        //! These bits are reserved for future use (must be always 0)
        NvU32 reserved : 31;

        //! Number of populated pstates
        NvU32 numPstates;

        //! Number of populated clocks (per pstate)
        NvU32 numClocks;

        //! Number of populated base voltages (per pstate)
        NvU32 numBaseVoltages;

        //! Performance state (P-State) settings
        //! Valid index range is 0 to numPstates-1
        struct
        {
            //! ID of the P-State
            NV_GPU_PERF_PSTATE_ID pstateId;

            NvU32 bIsEditable : 1;

            //! These bits are reserved for future use (must be always 0)
            NvU32 reserved : 31;

            //! Array of clock entries
            //! Valid index range is 0 to numClocks-1
            NV_GPU_PSTATE20_CLOCK_ENTRY_V1 clocks[NVAPI_MAX_GPU_PSTATE20_CLOCKS];

            //! Array of baseVoltage entries
            //! Valid index range is 0 to numBaseVoltages-1
            NV_GPU_PSTATE20_BASE_VOLTAGE_ENTRY_V1 baseVoltages[NVAPI_MAX_GPU_PSTATE20_BASE_VOLTAGES];
        } pstates[NVAPI_MAX_GPU_PSTATE20_PSTATES];

        //! OV settings - Please refer to NVIDIA over-volting recommendation to understand impact of this functionality
        //! Valid index range is 0 to numVoltages-1
        struct
        {
            //! Number of populated voltages
            NvU32 numVoltages;

            //! Array of voltage entries
            //! Valid index range is 0 to numVoltages-1
            NV_GPU_PSTATE20_BASE_VOLTAGE_ENTRY_V1 voltages[NVAPI_MAX_GPU_PSTATE20_BASE_VOLTAGES];
        } ov;
    } NV_GPU_PERF_PSTATES20_INFO_V2;

    typedef NV_GPU_PERF_PSTATES20_INFO_V2 NV_GPU_PERF_PSTATES20_INFO;

//! Macro for constructing the version field of NV_GPU_PERF_PSTATES20_INFO_V1
#define NV_GPU_PERF_PSTATES20_INFO_VER1 MAKE_NVAPI_VERSION(NV_GPU_PERF_PSTATES20_INFO_V1, 1)


//! Macro for constructing the version field of NV_GPU_PERF_PSTATES20_INFO_V2
#define NV_GPU_PERF_PSTATES20_INFO_VER2 MAKE_NVAPI_VERSION(NV_GPU_PERF_PSTATES20_INFO_V2, 2)


//! Macro for constructing the version field of NV_GPU_PERF_PSTATES20_INFO_V2
#define NV_GPU_PERF_PSTATES20_INFO_VER3 MAKE_NVAPI_VERSION(NV_GPU_PERF_PSTATES20_INFO_V2, 3)


//! Macro for constructing the version field of NV_GPU_PERF_PSTATES20_INFO
#define NV_GPU_PERF_PSTATES20_INFO_VER NV_GPU_PERF_PSTATES20_INFO_VER3


    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetDisplayDriverVersion
    //! \fn NvAPI_GetDisplayDriverVersion(NvDisplayHandle hNvDisplay, NV_DISPLAY_DRIVER_VERSION *pVersion)
    //! This function returns a struct that describes aspects of the display driver
    //!                build.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_SYS_GetDriverAndBranchVersion.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \param [in]  hNvDisplay NVIDIA display handle.
    //! \param [out] pVersion Pointer to NV_DISPLAY_DRIVER_VERSION struc
    //!
    //! \retval NVAPI_ERROR
    //! \retval NVAPI_OK
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup driverapi
    //! Used in NvAPI_GetDisplayDriverVersion()
    typedef struct
    {
        NvU32 version; // Structure version
        NvU32 drvVersion;
        NvU32 bldChangeListNum;
        NvAPI_ShortString szBuildBranchString;
        NvAPI_ShortString szAdapterString;
    } NV_DISPLAY_DRIVER_VERSION;

//! \ingroup driverapi
#define NV_DISPLAY_DRIVER_VERSION_VER MAKE_NVAPI_VERSION(NV_DISPLAY_DRIVER_VERSION, 1)


    //! \ingroup driverapi
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_SYS_GetDriverAndBranchVersion.")
        NVAPI_INTERFACE NvAPI_GetDisplayDriverVersion(NvDisplayHandle hNvDisplay, NV_DISPLAY_DRIVER_VERSION *pVersion);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_OGL_ExpertModeSet[Get]
//
//! \name NvAPI_OGL_ExpertModeSet[Get] Functions
//@{
//!  This function configures OpenGL Expert Mode, an API usage feedback and
//!  advice reporting mechanism. The effects of this call are
//!  applied only to the current context, and are reset to the
//!  defaults when the context is destroyed.
//!
//!  \note  This feature is valid at runtime only when GLExpert
//!         functionality has been built into the OpenGL driver
//!         installed on the system. All Windows Vista OpenGL
//!         drivers provided by NVIDIA have this instrumentation
//!         included by default. Windows XP, however, requires a
//!         special display driver available with the NVIDIA
//!         PerfSDK found at developer.nvidia.com.
//!
//!  \note These functions are valid only for the current OpenGL
//!        context. Calling these functions prior to creating a
//!        context and calling MakeCurrent with it will result
//!        in errors and undefined behavior.
//!
//! SUPPORTED OS:  Windows 7 and higher
//!
//!
//! \since Release: 80
//!
//! \param   expertDetailMask  Mask made up of NVAPI_OGLEXPERT_DETAIL bits,
//!                            this parameter specifies the detail level in
//!                            the feedback stream.
//!
//! \param   expertReportMask  Mask made up of NVAPI_OGLEXPERT_REPORT bits,
//!                            this parameter specifies the areas of
//!                            functional interest.
//!
//! \param   expertOutputMask  Mask made up of NVAPI_OGLEXPERT_OUTPUT bits,
//!                            this parameter specifies the feedback output
//!                            location.
//!
//! \param   expertCallback    Used in conjunction with OUTPUT_TO_CALLBACK,
//!                            this is a simple callback function the user
//!                            may use to obtain the feedback stream. The
//!                            function will be called once per fully
//!                            qualified feedback stream extry.
//!
//! \retval  NVAPI_API_NOT_INTIALIZED          NVAPI not initialized
//! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND     No NVIDIA GPU found
//! \retval  NVAPI_OPENGL_CONTEXT_NOT_CURRENT  No NVIDIA OpenGL context
//!                                            which supports GLExpert
//!                                            has been made current
//! \retval  NVAPI_ERROR                       OpenGL driver failed to load properly
//! \retval  NVAPI_OK                          Success
//
///////////////////////////////////////////////////////////////////////////////

//! \addtogroup oglapi
//! @{
#define NVAPI_OGLEXPERT_DETAIL_NONE 0x00000000

#define NVAPI_OGLEXPERT_DETAIL_ERROR 0x00000001

#define NVAPI_OGLEXPERT_DETAIL_SWFALLBACK 0x00000002

#define NVAPI_OGLEXPERT_DETAIL_BASIC_INFO 0x00000004

#define NVAPI_OGLEXPERT_DETAIL_DETAILED_INFO 0x00000008

#define NVAPI_OGLEXPERT_DETAIL_PERFORMANCE_WARNING 0x00000010

#define NVAPI_OGLEXPERT_DETAIL_QUALITY_WARNING 0x00000020

#define NVAPI_OGLEXPERT_DETAIL_USAGE_WARNING 0x00000040

#define NVAPI_OGLEXPERT_DETAIL_ALL 0xFFFFFFFF


#define NVAPI_OGLEXPERT_REPORT_NONE 0x00000000

#define NVAPI_OGLEXPERT_REPORT_ERROR 0x00000001

#define NVAPI_OGLEXPERT_REPORT_SWFALLBACK 0x00000002

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_VERTEX 0x00000004

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_GEOMETRY 0x00000008

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_XFB 0x00000010

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_RASTER 0x00000020

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_FRAGMENT 0x00000040

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_ROP 0x00000080

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_FRAMEBUFFER 0x00000100

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_PIXEL 0x00000200

#define NVAPI_OGLEXPERT_REPORT_PIPELINE_TEXTURE 0x00000400

#define NVAPI_OGLEXPERT_REPORT_OBJECT_BUFFEROBJECT 0x00000800

#define NVAPI_OGLEXPERT_REPORT_OBJECT_TEXTURE 0x00001000

#define NVAPI_OGLEXPERT_REPORT_OBJECT_PROGRAM 0x00002000

#define NVAPI_OGLEXPERT_REPORT_OBJECT_FBO 0x00004000

#define NVAPI_OGLEXPERT_REPORT_FEATURE_SLI 0x00008000

#define NVAPI_OGLEXPERT_REPORT_ALL 0xFFFFFFFF


#define NVAPI_OGLEXPERT_OUTPUT_TO_NONE 0x00000000

#define NVAPI_OGLEXPERT_OUTPUT_TO_CONSOLE 0x00000001

#define NVAPI_OGLEXPERT_OUTPUT_TO_DEBUGGER 0x00000004

#define NVAPI_OGLEXPERT_OUTPUT_TO_CALLBACK 0x00000008

#define NVAPI_OGLEXPERT_OUTPUT_TO_ALL 0xFFFFFFFF


    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION TYPE: NVAPI_OGLEXPERT_CALLBACK
    //
    //!   DESCRIPTION: Used in conjunction with OUTPUT_TO_CALLBACK, this is a simple
    //!                callback function the user may use to obtain the feedback
    //!                stream. The function will be called once per fully qualified
    //!                feedback stream entry.
    //!
    //!   \param   categoryId    Contains the bit from the NVAPI_OGLEXPERT_REPORT
    //!                          mask that corresponds to the current message
    //!   \param   messageId     Unique ID for the current message
    //!   \param   detailLevel   Contains the bit from the NVAPI_OGLEXPERT_DETAIL
    //!                          mask that corresponds to the current message
    //!   \param   objectId      Unique ID of the object that corresponds to the
    //!                          current message
    //!   \param   messageStr    Text string from the current message
    //!
    //!   \ingroup oglapi
    ///////////////////////////////////////////////////////////////////////////////
    typedef void (*NVAPI_OGLEXPERT_CALLBACK)(unsigned int categoryId, unsigned int messageId, unsigned int detailLevel, int objectId, const char *messageStr);

    //! \ingroup oglapi
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    NVAPI_INTERFACE NvAPI_OGL_ExpertModeSet(NvU32 expertDetailLevel,
                                            NvU32 expertReportMask,
                                            NvU32 expertOutputMask,
                                            NVAPI_OGLEXPERT_CALLBACK expertCallback);

    //! \addtogroup oglapi
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    NVAPI_INTERFACE NvAPI_OGL_ExpertModeGet(NvU32 *pExpertDetailLevel,
                                            NvU32 *pExpertReportMask,
                                            NvU32 *pExpertOutputMask,
                                            NVAPI_OGLEXPERT_CALLBACK *pExpertCallback);

    //@}
    ///////////////////////////////////////////////////////////////////////////////
    //
    //! \name NvAPI_OGL_ExpertModeDefaultsSet[Get] Functions
    //!
    //@{
    //!  This function configures OpenGL Expert Mode global defaults. These settings
    //!  apply to any OpenGL application which starts up after these
    //!  values are applied (i.e. these settings *do not* apply to
    //!  currently running applications).
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \param   expertDetailLevel Value which specifies the detail level in
    //!                            the feedback stream. This is a mask made up
    //!                            of NVAPI_OGLEXPERT_LEVEL bits.
    //!
    //! \param   expertReportMask  Mask made up of NVAPI_OGLEXPERT_REPORT bits,
    //!                            this parameter specifies the areas of
    //!                            functional interest.
    //!
    //! \param   expertOutputMask  Mask made up of NVAPI_OGLEXPERT_OUTPUT bits,
    //!                            this parameter specifies the feedback output
    //!                            location. Note that using OUTPUT_TO_CALLBACK
    //!                            here is meaningless and has no effect, but
    //!                            using it will not cause an error.
    //!
    //! \return  ::NVAPI_ERROR or ::NVAPI_OK
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup oglapi
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    NVAPI_INTERFACE NvAPI_OGL_ExpertModeDefaultsSet(NvU32 expertDetailLevel,
                                                    NvU32 expertReportMask,
                                                    NvU32 expertOutputMask);

    //! \addtogroup oglapi
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    NVAPI_INTERFACE NvAPI_OGL_ExpertModeDefaultsGet(NvU32 *pExpertDetailLevel,
                                                    NvU32 *pExpertReportMask,
                                                    NvU32 *pExpertOutputMask);
    //@}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_EnumTCCPhysicalGPUs
    //
    //! This function returns an array of physical GPU handles that are in TCC Mode.
    //! Each handle represents a physical GPU present in the system in TCC Mode.
    //! That GPU may not be visible to the OS directly.
    //!
    //! The array nvGPUHandle will be filled with physical GPU handle values. The returned
    //! gpuCount determines how many entries in the array are valid.
    //!
    //! NOTE: Handles enumerated by this API are only valid for NvAPIs that are tagged as TCC_SUPPORTED
    //!       If handle is passed to any other API, it will fail with NVAPI_INVALID_HANDLE
    //!
    //!       For WDDM GPU handles please use NvAPI_EnumPhysicalGPUs()
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //!
    //! \param [out]   nvGPUHandle      Physical GPU array that will contain all TCC Physical GPUs
    //! \param [out]   pGpuCount        count represent the number of valid entries in nvGPUHandle
    //!
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         nvGPUHandle or pGpuCount is NULL
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_EnumTCCPhysicalGPUs(NvPhysicalGpuHandle nvGPUHandle[NVAPI_MAX_PHYSICAL_GPUS], NvU32 *pGpuCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_EnumLogicalGPUs
    //
    //! This function returns an array of logical GPU handles.
    //!
    //! Each handle represents one or more GPUs acting in concert as a single graphics device.
    //!
    //! At least one GPU must be present in the system and running an NVIDIA display driver.
    //!
    //! The array nvGPUHandle will be filled with logical GPU handle values.  The returned
    //! gpuCount determines how many entries in the array are valid.
    //!
    //! \note All logical GPUs handles get invalidated on a GPU topology change, so the calling
    //!       application is required to renum the logical GPU handles to get latest physical handle
    //!       mapping after every GPU topology change activated by a call to NvAPI_SetGpuTopologies().
    //!
    //! To detect if SLI rendering is enabled, use NvAPI_D3D_GetCurrentSLIState().
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         nvGPUHandle or pGpuCount is NULL
    //! \retval NVAPI_OK                       One or more handles were returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_EnumLogicalGPUs(NvLogicalGpuHandle nvGPUHandle[NVAPI_MAX_LOGICAL_GPUS], NvU32 *pGpuCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetPhysicalGPUsFromDisplay
    //
    //! This function returns an array of physical GPU handles associated with the specified display.
    //!
    //! At least one GPU must be present in the system and running an NVIDIA display driver.
    //!
    //! The array nvGPUHandle will be filled with physical GPU handle values.  The returned
    //! gpuCount determines how many entries in the array are valid.
    //!
    //! If the display corresponds to more than one physical GPU, the first GPU returned
    //! is the one with the attached active output.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         hNvDisp is not valid; nvGPUHandle or pGpuCount is NULL
    //! \retval NVAPI_OK                       One or more handles were returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  no NVIDIA GPU driving a display was found
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetPhysicalGPUsFromDisplay(NvDisplayHandle hNvDisp, NvPhysicalGpuHandle nvGPUHandle[NVAPI_MAX_PHYSICAL_GPUS], NvU32 *pGpuCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetPhysicalGPUFromUnAttachedDisplay
    //
    //! This function returns a physical GPU handle associated with the specified unattached display.
    //! The source GPU is a physical render GPU which renders the frame buffer but may or may not drive the scan out.
    //!
    //! At least one GPU must be present in the system and running an NVIDIA display driver.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         hNvUnAttachedDisp is not valid or pPhysicalGpu is NULL.
    //! \retval NVAPI_OK                       One or more handles were returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetPhysicalGPUFromUnAttachedDisplay(NvUnAttachedDisplayHandle hNvUnAttachedDisp, NvPhysicalGpuHandle *pPhysicalGpu);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetLogicalGPUFromDisplay
    //
    //! This function returns the logical GPU handle associated with the specified display.
    //! At least one GPU must be present in the system and running an NVIDIA display driver.
    //! hNvDisp can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         hNvDisp is not valid; pLogicalGPU is NULL
    //! \retval NVAPI_OK                       One or more handles were returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetLogicalGPUFromDisplay(NvDisplayHandle hNvDisp, NvLogicalGpuHandle *pLogicalGPU);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetLogicalGPUFromPhysicalGPU
    //
    //! This function returns the logical GPU handle associated with specified physical GPU handle.
    //! At least one GPU must be present in the system and running an NVIDIA display driver.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         hPhysicalGPU is not valid; pLogicalGPU is NULL
    //! \retval NVAPI_OK                       One or more handles were returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetLogicalGPUFromPhysicalGPU(NvPhysicalGpuHandle hPhysicalGPU, NvLogicalGpuHandle *pLogicalGPU);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetPhysicalGPUsFromLogicalGPU
    //
    //!  This function returns the physical GPU handles associated with the specified logical GPU handle.
    //!  At least one GPU must be present in the system and running an NVIDIA display driver.
    //!
    //!  The array hPhysicalGPU will be filled with physical GPU handle values.  The returned
    //!  gpuCount determines how many entries in the array are valid.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT             hLogicalGPU is not valid; hPhysicalGPU is NULL
    //! \retval NVAPI_OK                           One or more handles were returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND      No NVIDIA GPU driving a display was found
    //! \retval NVAPI_EXPECTED_LOGICAL_GPU_HANDLE  hLogicalGPU was not a logical GPU handle
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetPhysicalGPUsFromLogicalGPU(NvLogicalGpuHandle hLogicalGPU, NvPhysicalGpuHandle hPhysicalGPU[NVAPI_MAX_PHYSICAL_GPUS], NvU32 *pGpuCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetPhysicalGPUFromGPUID
    //
    //!  Do not use this function for new software development.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         gpuId is zero or pPhysicalGPU is NULL
    //! \retval NVAPI_OK                       Handle was returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetPhysicalGPUFromGPUID(NvU32 gpuId, NvPhysicalGpuHandle *pPhysicalGPU);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetGPUIDfromPhysicalGPU
    //
    //!  Do not use this function for new software development.
    //
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 95
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         hPhysicalGpu is NULL or invalid. Re-enumerate the GPU handles.
    //! \retval NVAPI_OK                       Handle was returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetGPUIDfromPhysicalGPU(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pGpuId);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetShaderSubPipeCount
    //
    //!   DESCRIPTION: This function retrieves the number of Shader SubPipes on the GPU
    //!                On newer architectures, this corresponds to the number of SM units
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 170
    //!
    //! RETURN STATUS: NVAPI_INVALID_ARGUMENT: pCount is NULL
    //!                NVAPI_OK: *pCount is set
    //!                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
    //!                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
    //!
    //! \ingroup   gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetShaderSubPipeCount(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetGpuCoreCount
    //
    //!   DESCRIPTION: Retrieves the total number of cores defined for a GPU.
    //!                Returns 0 on architectures that don't define GPU cores.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT              pCount is NULL
    //! \retval ::NVAPI_OK                            *pCount is set
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND       no NVIDIA GPU driving a display was found
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle
    //! \retval ::NVAPI_NOT_SUPPORTED                 API call is not supported on current architecture
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetGpuCoreCount(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetAllOutputs
    //
    //!  This function returns set of all GPU-output identifiers as a bitmask.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetAllDisplayIds.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 85
    //!
    //! \retval   NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pOutputsMask is NULL.
    //! \retval   NVAPI_OK                           *pOutputsMask contains a set of GPU-output identifiers.
    //! \retval   NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval   NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetAllDisplayIds.")
        NVAPI_INTERFACE NvAPI_GPU_GetAllOutputs(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetConnectedOutputs
    //
    //! This function is the same as NvAPI_GPU_GetAllOutputs() but returns only the set of GPU output
    //! identifiers that are connected to display devices.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetConnectedDisplayIds.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval   NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pOutputsMask is NULL.
    //! \retval   NVAPI_OK                           *pOutputsMask contains a set of GPU-output identifiers.
    //! \retval   NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval   NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetConnectedDisplayIds.")
        NVAPI_INTERFACE NvAPI_GPU_GetConnectedOutputs(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetConnectedSLIOutputs
    //
    //!   DESCRIPTION: This function is the same as NvAPI_GPU_GetConnectedOutputs() but returns only the set of GPU-output
    //!                identifiers that can be selected in an SLI configuration.
    //!                 NOTE: This function matches NvAPI_GPU_GetConnectedOutputs()
    //!                 - On systems which are not SLI capable.
    //!                 - If the queried GPU is not part of a valid SLI group.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetConnectedDisplayIds.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 170
    //!
    //! \retval   NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pOutputsMask is NULL
    //! \retval   NVAPI_OK                           *pOutputsMask contains a set of GPU-output identifiers
    //! \retval   NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval   NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetConnectedDisplayIds.")
        NVAPI_INTERFACE NvAPI_GPU_GetConnectedSLIOutputs(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

    //! \ingroup gpu
    typedef enum
    {
        NV_MONITOR_CONN_TYPE_UNINITIALIZED = 0,
        NV_MONITOR_CONN_TYPE_VGA,
        NV_MONITOR_CONN_TYPE_COMPONENT,
        NV_MONITOR_CONN_TYPE_SVIDEO,
        NV_MONITOR_CONN_TYPE_HDMI,
        NV_MONITOR_CONN_TYPE_DVI,
        NV_MONITOR_CONN_TYPE_LVDS,
        NV_MONITOR_CONN_TYPE_DP,
        NV_MONITOR_CONN_TYPE_COMPOSITE,
        NV_MONITOR_CONN_TYPE_UNKNOWN = -1
    } NV_MONITOR_CONN_TYPE;

//! \addtogroup gpu
//! @{
#define NV_GPU_CONNECTED_IDS_FLAG_UNCACHED NV_BIT(0)    //!< Get uncached connected devices

#define NV_GPU_CONNECTED_IDS_FLAG_SLI NV_BIT(1)         //!< Get devices such that those can be selected in an SLI configuration

#define NV_GPU_CONNECTED_IDS_FLAG_LIDSTATE NV_BIT(2)    //!< Get devices such that to reflect the Lid State

#define NV_GPU_CONNECTED_IDS_FLAG_FAKE NV_BIT(3)        //!< Get devices that includes the fake connected monitors

#define NV_GPU_CONNECTED_IDS_FLAG_EXCLUDE_MST NV_BIT(4) //!< Excludes devices that are part of the multi stream topology.


    //! @}

    //! \ingroup gpu
    typedef struct _NV_GPU_DISPLAYIDS
    {
        NvU32 version;
        NV_MONITOR_CONN_TYPE connectorType; //!< out: vga, tv, dvi, hdmi and dp. This is reserved for future use and clients should not rely on this information. Instead get the
                                            //!< GPU connector type from NvAPI_GPU_GetConnectorInfo/NvAPI_GPU_GetConnectorInfoEx
        NvU32 displayId;                    //!< this is a unique identifier for each device

        NvU32 isDynamic : 1;             //!< if bit is set then this display is part of MST topology and it's a dynamic
        NvU32 isMultiStreamRootNode : 1; //!< if bit is set then this displayID belongs to a multi stream enabled connector(root node). Note that when multi stream is enabled and
                                         //!< a single multi stream capable monitor is connected to it, the monitor will share the display id with the RootNode.
                                         //!< When there is more than one monitor connected in a multi stream topology, then the root node will have a separate displayId.
        NvU32 isActive : 1;              //!< if bit is set then this display is being actively driven
        NvU32 isCluster : 1;             //!< if bit is set then this display is the representative display
        NvU32 isOSVisible : 1;           //!< if bit is set, then this display is reported to the OS
        NvU32 isWFD : 1;                 //!< Deprecated. Will always return 0.
        NvU32 isConnected : 1;           //!< if bit is set, then this display is connected

        NvU32 reservedInternal : 10;     //!< Do not use
        NvU32 isPhysicallyConnected : 1; //!< if bit is set, then this display is a phycially connected display; Valid only when isConnected bit is set
        NvU32 reserved : 14;             //!< must be zero
    } NV_GPU_DISPLAYIDS;

//! \ingroup gpu
//! Macro for constructing the version field of ::_NV_GPU_DISPLAYIDS
#define NV_GPU_DISPLAYIDS_VER1 MAKE_NVAPI_VERSION(NV_GPU_DISPLAYIDS, 1)

#define NV_GPU_DISPLAYIDS_VER2 MAKE_NVAPI_VERSION(NV_GPU_DISPLAYIDS, 3)


#define NV_GPU_DISPLAYIDS_VER NV_GPU_DISPLAYIDS_VER2


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetConnectedDisplayIds
    //
    //! \code
    //!   DESCRIPTION: Due to space limitation NvAPI_GPU_GetConnectedOutputs can return maximum 32 devices, but
    //!                this is no longer true for DPMST. NvAPI_GPU_GetConnectedDisplayIds will return all
    //!                the connected display devices in the form of displayIds for the associated hPhysicalGpu.
    //!                This function can accept set of flags to request cached, uncached, sli and lid to get the connected devices.
    //!                Default value for flags will be cached .
    //! HOW TO USE: 1) for each PhysicalGpu, make a call to get the number of connected displayId's
    //!                using NvAPI_GPU_GetConnectedDisplayIds by passing the pDisplayIds as NULL
    //!                On call success:
    //!             2) If pDisplayIdCount is greater than 0, allocate memory based on pDisplayIdCount. Then make a call NvAPI_GPU_GetConnectedDisplayIds to populate DisplayIds.
    //!                However, if pDisplayIdCount is 0, do not make this call.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! PARAMETERS:     hPhysicalGpu (IN)  - GPU selection
    //!                 flags        (IN)  - One or more defines from NV_GPU_CONNECTED_IDS_FLAG_* as valid flags.
    //!                 pDisplayIds  (IN/OUT) - Pointer to an NV_GPU_DISPLAYIDS struct, each entry represents a one displayID and its attributes
    //!                 pDisplayIdCount(OUT)- Number of displayId's.
    //!
    //! RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pDisplayIds or pDisplayIdCount is NULL
    //!                NVAPI_OK: *pDisplayIds contains a set of GPU-output identifiers
    //!                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
    //!                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
    //! \endcode
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetConnectedDisplayIds(__in NvPhysicalGpuHandle hPhysicalGpu, __inout_ecount_part_opt(*pDisplayIdCount, *pDisplayIdCount) NV_GPU_DISPLAYIDS *pDisplayIds, __inout NvU32 *pDisplayIdCount, __in NvU32 flags);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetAllDisplayIds
    //
    //!   DESCRIPTION: This API returns display IDs for all possible outputs on the GPU.
    //!                For DPMST connector, it will return display IDs for all the video sinks in the topology. \n
    //! HOW TO USE: 1. The first call should be made to get the all display ID count. To get the display ID count, send in \n
    //!                  a) hPhysicalGpu    - a valid GPU handle(enumerated using NvAPI_EnumPhysicalGPUs()) as input,      \n
    //!                  b) pDisplayIds     - NULL, as we just want to get the display ID count.                           \n
    //!                  c) pDisplayIdCount - a valid pointer to NvU32, whose value is set to ZERO.                        \n
    //!                If all parameters are correct and this call is successful, this call will return the display ID's count. \n
    //!             2. To get the display ID array, make the second call to NvAPI_GPU_GetAllDisplayIds() with              \n
    //!                  a) hPhysicalGpu    - should be same value which was sent in first call,                           \n
    //!                  b) pDisplayIds     - pointer to the display ID array allocated by caller based on display ID count,    \n
    //!                                       eg. malloc(sizeof(NV_GPU_DISPLAYIDS) * pDisplayIdCount).                     \n
    //!                  c) pDisplayIdCount - a valid pointer to NvU32. This indicates for how many display IDs            \n
    //!                                       the memory is allocated(pDisplayIds) by the caller.                          \n
    //!                If all parameters are correct and this call is successful, this call will return the display ID array and actual
    //!                display ID count (which was obtained in the first call to NvAPI_GPU_GetAllDisplayIds). If the input display ID count is
    //!                less than the actual display ID count, it will overwrite the input and give the pDisplayIdCount as actual count and the
    //!                API will return NVAPI_INSUFFICIENT_BUFFER.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     hPhysicalGpu         GPU selection.
    //! \param [in,out] DisplayIds           Pointer to an array of NV_GPU_DISPLAYIDS structures, each entry represents one displayID
    //!                                      and its attributes.
    //! \param [in,out] pDisplayIdCount      As input, this parameter indicates the number of display's id's for which caller has
    //!                                      allocated the memory. As output, it will return the actual number of display IDs.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!          specific meaning for this API, they are listed below.
    //!
    //! \retval  NVAPI_INSUFFICIENT_BUFFER  When the input buffer(pDisplayIds) is less than the actual number of display IDs, this API
    //!                                     will return NVAPI_INSUFFICIENT_BUFFER.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetAllDisplayIds(__in NvPhysicalGpuHandle hPhysicalGpu, __inout_ecount_part_opt(*pDisplayIdCount, *pDisplayIdCount) NV_GPU_DISPLAYIDS *pDisplayIds, __inout NvU32 *pDisplayIdCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetConnectedOutputsWithLidState
    //
    //!  This function is similar to NvAPI_GPU_GetConnectedOutputs(), and returns the connected display identifiers that are connected
    //!  as an output mask but unlike NvAPI_GPU_GetConnectedOutputs() this API "always" reflects the Lid State in the output mask.
    //!  Thus if you expect the LID close state to be available in the connection mask use this API.
    //!  - If LID is closed then this API will remove the LID panel from the connected display identifiers.
    //!  - If LID is open then this API will reflect the LID panel in the connected display identifiers.
    //!
    //! \note This API should be used on notebook systems and on systems where the LID state is required in the connection
    //!       output mask. On desktop systems the returned identifiers will match NvAPI_GPU_GetConnectedOutputs().
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetConnectedDisplayIds.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 95
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pOutputsMask is NULL
    //! \retval  NVAPI_OK                           *pOutputsMask contains a set of GPU-output identifiers
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetConnectedDisplayIds.")
        NVAPI_INTERFACE NvAPI_GPU_GetConnectedOutputsWithLidState(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetConnectedSLIOutputsWithLidState
    //
    //!   DESCRIPTION: This function is the same as NvAPI_GPU_GetConnectedOutputsWithLidState() but returns only the set
    //!                of GPU-output identifiers that can be selected in an SLI configuration. With SLI disabled,
    //!                this function matches NvAPI_GPU_GetConnectedOutputsWithLidState().
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetConnectedDisplayIds.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 170
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pOutputsMask is NULL
    //! \retval  NVAPI_OK                           *pOutputsMask contains a set of GPU-output identifiers
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_GPU_GetConnectedDisplayIds.")
        NVAPI_INTERFACE NvAPI_GPU_GetConnectedSLIOutputsWithLidState(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetSystemType
    //
    //! \fn NvAPI_GPU_GetSystemType(NvPhysicalGpuHandle hPhysicalGpu, NV_SYSTEM_TYPE *pSystemType)
    //!  This function identifies whether the GPU is a notebook GPU or a desktop GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 95
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pOutputsMask is NULL
    //! \retval  NVAPI_OK                           *pSystemType contains the GPU system type
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    //! Used in NvAPI_GPU_GetSystemType()
    typedef enum
    {
        NV_SYSTEM_TYPE_UNKNOWN = 0,
        NV_SYSTEM_TYPE_LAPTOP = 1,
        NV_SYSTEM_TYPE_DESKTOP = 2,

    } NV_SYSTEM_TYPE;

    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_GetSystemType(NvPhysicalGpuHandle hPhysicalGpu, NV_SYSTEM_TYPE *pSystemType);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetActiveOutputs
    //
    //!  This function is the same as NvAPI_GPU_GetAllOutputs but returns only the set of GPU output
    //!  identifiers that are actively driving display devices.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 85
    //!
    //! \retval    NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pOutputsMask is NULL.
    //! \retval    NVAPI_OK                           *pOutputsMask contains a set of GPU-output identifiers.
    //! \retval    NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetActiveOutputs(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_SetEDID
    //
    //!  Thus function sets the EDID data for the specified GPU handle and connection bit mask.
    //!  User can either send (Gpu handle & output id)  or only display Id in variable displayOutputId parameter & hPhysicalGpu parameter can be default handle (0).
    //!  \note The EDID will be cached across the boot session and will be enumerated to the OS in this call.
    //!        To remove the EDID set sizeofEDID to zero.
    //!        OS and NVAPI connection status APIs will reflect the newly set or removed EDID dynamically.
    //!
    //!                This feature will NOT be supported on the following boards:
    //!                - GeForce
    //!                - Quadro VX
    //!                - Tesla
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 100
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              pEDID is NULL; displayOutputId has 0 or > 1 bits set
    //! \retval  NVAPI_OK                           *pEDID data was applied to the requested displayOutputId.
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle.
    //! \retval  NVAPI_NOT_SUPPORTED                 For the above mentioned GPUs
    //! \retval  NVAPI_INVALID_USER_PRIVILEGE        The application will require Administrator privileges to access this API.
    //!                                              The application can be elevated to a higher permission level by selecting "Run as Administrator".
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_SetEDID(NvPhysicalGpuHandle hPhysicalGpu, NvU32 displayOutputId, NV_EDID *pEDID);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetOutputType
    //
    //! \fn NvAPI_GPU_GetOutputType(NvPhysicalGpuHandle hPhysicalGpu, NvU32 outputId, NV_GPU_OUTPUT_TYPE *pOutputType)
    //!  This function returns the output type. User can either specify both 'physical GPU handle and outputId (exactly 1 bit set - see \ref handles)' or
    //!  a valid displayId in the outputId parameter.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \Version Earliest supported ForceWare version: 82.61
    //!
    //! \retval     NVAPI_INVALID_ARGUMENT              outputId, pOutputType is NULL; or if outputId parameter is not displayId and either it has > 1 bit set or hPhysicalGpu is NULL.
    //! \retval     NVAPI_OK                           *pOutputType contains a NvGpuOutputType value
    //! \retval     NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval     NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    //! used in NvAPI_GPU_GetOutputType()
    typedef enum _NV_GPU_OUTPUT_TYPE
    {
        NVAPI_GPU_OUTPUT_UNKNOWN = 0,
        NVAPI_GPU_OUTPUT_CRT = 1, //!<  CRT display device
        NVAPI_GPU_OUTPUT_DFP = 2, //!<  Digital Flat Panel display device
        NVAPI_GPU_OUTPUT_TV = 3,  //!<  TV display device
    } NV_GPU_OUTPUT_TYPE;

    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_GetOutputType(NvPhysicalGpuHandle hPhysicalGpu, NvU32 outputId, NV_GPU_OUTPUT_TYPE *pOutputType);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_ValidateOutputCombination
    //
    //!  This function determines if a set of GPU outputs can be active
    //!  simultaneously.  While a GPU may have <n> outputs, typically they cannot
    //!  all be active at the same time due to internal resource sharing.
    //!
    //!  Given a physical GPU handle and a mask of candidate outputs, this call
    //!  will return NVAPI_OK if all of the specified outputs can be driven
    //!  simultaneously.  It will return NVAPI_INVALID_COMBINATION if they cannot.
    //!
    //!  Use NvAPI_GPU_GetAllOutputs() to determine which outputs are candidates.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 85
    //!
    //! \retval  NVAPI_OK                            Combination of outputs in outputsMask are valid (can be active simultaneously).
    //! \retval  NVAPI_INVALID_COMBINATION           Combination of outputs in outputsMask are NOT valid.
    //! \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu or outputsMask does not have at least 2 bits set.
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ValidateOutputCombination(NvPhysicalGpuHandle hPhysicalGpu, NvU32 outputsMask);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetFullName
    //
    //!  This function retrieves the full GPU name as an ASCII string - for example, "Quadro FX 1400".
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \return  NVAPI_ERROR or NVAPI_OK
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetFullName(NvPhysicalGpuHandle hPhysicalGpu, NvAPI_ShortString szName);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetPCIIdentifiers
    //
    //!  This function returns the PCI identifiers associated with this GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \param   DeviceId      The internal PCI device identifier for the GPU.
    //! \param   SubSystemId   The internal PCI subsystem identifier for the GPU.
    //! \param   RevisionId    The internal PCI device-specific revision identifier for the GPU.
    //! \param   ExtDeviceId   The external PCI device identifier for the GPU.
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu or an argument is NULL
    //! \retval  NVAPI_OK                            Arguments are populated with PCI identifiers
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetPCIIdentifiers(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pDeviceId, NvU32 *pSubSystemId, NvU32 *pRevisionId, NvU32 *pExtDeviceId);

    //! \ingroup gpu
    //! Used in NvAPI_GPU_GetGPUType().
    typedef enum _NV_GPU_TYPE
    {
        NV_SYSTEM_TYPE_GPU_UNKNOWN = 0,
        NV_SYSTEM_TYPE_IGPU = 1, //!< Integrated GPU
        NV_SYSTEM_TYPE_DGPU = 2, //!< Discrete GPU
    } NV_GPU_TYPE;

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetGPUType
    //
    //!  DESCRIPTION: This function returns the GPU type (integrated or discrete).
    //!               See ::NV_GPU_TYPE.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 173
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu
    //! \retval  NVAPI_OK                           *pGpuType contains the GPU type
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
    //!
    //!  \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetGPUType(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_TYPE *pGpuType);

    //! \ingroup gpu
    //! Used in NvAPI_GPU_GetBusType()
    typedef enum _NV_GPU_BUS_TYPE
    {
        NVAPI_GPU_BUS_TYPE_UNDEFINED = 0,
        NVAPI_GPU_BUS_TYPE_PCI = 1,
        NVAPI_GPU_BUS_TYPE_AGP = 2,
        NVAPI_GPU_BUS_TYPE_PCI_EXPRESS = 3,
        NVAPI_GPU_BUS_TYPE_FPCI = 4,
        NVAPI_GPU_BUS_TYPE_AXI = 5,
    } NV_GPU_BUS_TYPE;
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetBusType
    //
    //!  This function returns the type of bus associated with this GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \return      This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!              specific meaning for this API, they are listed below.
    //! \retval      NVAPI_INVALID_ARGUMENT             hPhysicalGpu or pBusType is NULL.
    //! \retval      NVAPI_OK                          *pBusType contains bus identifier.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetBusType(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_BUS_TYPE *pBusType);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetBusId
    //
    //!   DESCRIPTION: Returns the ID of the bus associated with this GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 167
    //!
    //!  \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pBusId is NULL.
    //!  \retval  NVAPI_OK                           *pBusId contains the bus ID.
    //!  \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //!  \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //!
    //!  \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetBusId(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pBusId);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetBusSlotId
    //
    //!   DESCRIPTION: Returns the ID of the bus slot associated with this GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 167
    //!
    //!  \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pBusSlotId is NULL.
    //!  \retval  NVAPI_OK                           *pBusSlotId contains the bus slot ID.
    //!  \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //!  \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //!
    //!  \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetBusSlotId(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pBusSlotId);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetIRQ
    //
    //!  This function returns the interrupt number associated with this GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pIRQ is NULL.
    //! \retval  NVAPI_OK                           *pIRQ contains interrupt number.
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetIRQ(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pIRQ);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetVbiosRevision
    //
    //!  This function returns the revision of the video BIOS associated with this GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval    NVAPI_INVALID_ARGUMENT               hPhysicalGpu or pBiosRevision is NULL.
    //! \retval    NVAPI_OK                            *pBiosRevision contains revision number.
    //! \retval    NVAPI_NVIDIA_DEVICE_NOT_FOUND        No NVIDIA GPU driving a display was found.
    //! \retval    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE   hPhysicalGpu was not a physical GPU handle.
    //! \ingroup   gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetVbiosRevision(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pBiosRevision);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetVbiosOEMRevision
    //
    //!  This function returns the OEM revision of the video BIOS associated with this GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval    NVAPI_INVALID_ARGUMENT              hPhysicalGpu or pBiosRevision is NULL
    //! \retval    NVAPI_OK                           *pBiosRevision contains revision number
    //! \retval    NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle
    //! \ingroup   gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetVbiosOEMRevision(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pBiosRevision);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetVbiosVersionString
    //
    //!  This function returns the full video BIOS version string in the form of xx.xx.xx.xx.yy where
    //!  - xx numbers come from NvAPI_GPU_GetVbiosRevision() and
    //!  - yy comes from NvAPI_GPU_GetVbiosOEMRevision().
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval   NVAPI_INVALID_ARGUMENT              hPhysicalGpu is NULL.
    //! \retval   NVAPI_OK                            szBiosRevision contains version string.
    //! \retval   NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval   NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetVbiosVersionString(NvPhysicalGpuHandle hPhysicalGpu, NvAPI_ShortString szBiosRevision);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetAGPAperture
    //
    //!  This function returns the AGP aperture in megabytes.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 455.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval   NVAPI_NOT_SUPPORTED
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 455.")
        NVAPI_INTERFACE NvAPI_GPU_GetAGPAperture(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pSize);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetCurrentAGPRate
    //
    //!  This function returns the current AGP Rate (0 = AGP not present, 1 = 1x, 2 = 2x, etc.).
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 455.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval   NVAPI_NOT_SUPPORTED
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 455.")
        NVAPI_INTERFACE NvAPI_GPU_GetCurrentAGPRate(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pRate);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetCurrentPCIEDownstreamWidth
    //
    //!  This function returns the number of PCIE lanes being used for the PCIE interface
    //!  downstream from the GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              pWidth is NULL.
    //! \retval  NVAPI_OK                            Call successful.
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetCurrentPCIEDownstreamWidth(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pWidth);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetPhysicalFrameBufferSize
    //
    //!   This function returns the physical size of framebuffer in KB.  This does NOT include any
    //!   system RAM that may be dedicated for use by the GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              pSize is NULL
    //! \retval  NVAPI_OK                            Call successful
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetPhysicalFrameBufferSize(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pSize);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetVirtualFrameBufferSize
    //
    //!  This function returns the virtual size of framebuffer in KB.  This includes the physical RAM plus any
    //!  system RAM that has been dedicated for use by the GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 90
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              pSize is NULL.
    //! \retval  NVAPI_OK                            Call successful.
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND       No NVIDIA GPU driving a display was found.
    //! \retval  NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu was not a physical GPU handle.
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetVirtualFrameBufferSize(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pSize);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetQuadroStatus
    //
    //!  This function retrieves the Quadro status for the GPU (1 if Quadro, 0 if GeForce)
    //!
    //!  This API is deprecated and it is recommended to instead query
    //!  NV_GPU_WORKSTATION_FEATURE_TYPE_PROVIZ support from the API
    //!  NvAPI_GPU_QueryWorkstationFeatureSupport.
    //! \deprecated  Do not use this function - it is deprecated in release 460.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \return  NVAPI_ERROR or NVAPI_OK
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 460.")
        NVAPI_INTERFACE NvAPI_GPU_GetQuadroStatus(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pStatus);

    //! \ingroup gpu
    typedef struct _NV_BOARD_INFO
    {
        NvU32 version;     //!< structure version
        NvU8 BoardNum[16]; //!< Board Serial Number

    } NV_BOARD_INFO_V1;

#define NV_BOARD_INFO_VER1 MAKE_NVAPI_VERSION(NV_BOARD_INFO_V1, 1)

#ifndef NV_BOARD_INFO_VER
    //! \ingroup gpu
    typedef NV_BOARD_INFO_V1 NV_BOARD_INFO;
//! \ingroup gpu
//! \ingroup gpu
#define NV_BOARD_INFO_VER NV_BOARD_INFO_VER1

#endif

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetBoardInfo
    //
    //!   DESCRIPTION: This API Retrieves the Board information (a unique GPU Board Serial Number) stored in the InfoROM.
    //!
    //! \param [in]      hPhysicalGpu       Physical GPU Handle.
    //! \param [in,out]  NV_BOARD_INFO      Board Information.
    //!
    //! TCC_SUPPORTED
    //!
    //! \retval ::NVAPI_OK                     completed request
    //! \retval ::NVAPI_ERROR                  miscellaneous error occurred
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  handle passed is not a physical GPU handle
    //! \retval ::NVAPI_API_NOT_INTIALIZED            NVAPI not initialized
    //! \retval ::NVAPI_INVALID_POINTER               pBoardInfo is NULL
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION   the version of the INFO struct is not supported
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetBoardInfo(NvPhysicalGpuHandle hPhysicalGpu, NV_BOARD_INFO *pBoardInfo);

    //! Used in NvAPI_GPU_GetArchInfo()
    typedef struct
    {
        NvU32 version;

        NvU32 architecture;
        NvU32 implementation;
        NvU32 revision;

    } NV_GPU_ARCH_INFO_V1;

    //! NV_GPU_ARCH_INFO() values to identify Architecture level for the GPU.
    typedef enum _NV_GPU_ARCHITECTURE_ID
    {

        NV_GPU_ARCHITECTURE_T2X = 0xE0000020,
        NV_GPU_ARCHITECTURE_T3X = 0xE0000030,
        NV_GPU_ARCHITECTURE_T4X = 0xE0000040,
        NV_GPU_ARCHITECTURE_T12X = 0xE0000040,
        NV_GPU_ARCHITECTURE_NV40 = 0x00000040,
        NV_GPU_ARCHITECTURE_NV50 = 0x00000050,
        NV_GPU_ARCHITECTURE_G78 = 0x00000060,
        NV_GPU_ARCHITECTURE_G80 = 0x00000080,
        NV_GPU_ARCHITECTURE_G90 = 0x00000090,
        NV_GPU_ARCHITECTURE_GT200 = 0x000000A0,
        NV_GPU_ARCHITECTURE_GF100 = 0x000000C0,
        NV_GPU_ARCHITECTURE_GF110 = 0x000000D0,
        NV_GPU_ARCHITECTURE_GK100 = 0x000000E0,
        NV_GPU_ARCHITECTURE_GK110 = 0x000000F0,
        NV_GPU_ARCHITECTURE_GK200 = 0x00000100,
        NV_GPU_ARCHITECTURE_GM000 = 0x00000110,
        NV_GPU_ARCHITECTURE_GM200 = 0x00000120,
        NV_GPU_ARCHITECTURE_GP100 = 0x00000130,
        NV_GPU_ARCHITECTURE_GV100 = 0x00000140,
        NV_GPU_ARCHITECTURE_GV110 = 0x00000150,
        NV_GPU_ARCHITECTURE_TU100 = 0x00000160,
        NV_GPU_ARCHITECTURE_GA100 = 0x00000170,

    } NV_GPU_ARCHITECTURE_ID;

    //! NV_GPU_ARCH_INFO() values to identify GPU Architecture Implementation.
    typedef enum _NV_GPU_ARCH_IMPLEMENTATION_ID
    {

        NV_GPU_ARCH_IMPLEMENTATION_T20 = 0x00000000,

        NV_GPU_ARCH_IMPLEMENTATION_T30 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_T35 = 0x00000005,

        NV_GPU_ARCH_IMPLEMENTATION_T40 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_T124 = 0x00000000,

        NV_GPU_ARCH_IMPLEMENTATION_NV40 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_NV41 = 0x00000001,
        NV_GPU_ARCH_IMPLEMENTATION_NV42 = 0x00000002,
        NV_GPU_ARCH_IMPLEMENTATION_NV43 = 0x00000003,
        NV_GPU_ARCH_IMPLEMENTATION_NV44 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_NV44A = 0x0000000A,
        NV_GPU_ARCH_IMPLEMENTATION_NV46 = 0x00000006,
        NV_GPU_ARCH_IMPLEMENTATION_NV47 = 0x00000007,
        NV_GPU_ARCH_IMPLEMENTATION_NV49 = 0x00000009,
        NV_GPU_ARCH_IMPLEMENTATION_NV4B = 0x0000000B,
        NV_GPU_ARCH_IMPLEMENTATION_NV4C = 0x0000000C,
        NV_GPU_ARCH_IMPLEMENTATION_NV4E = 0x0000000E,

        NV_GPU_ARCH_IMPLEMENTATION_NV50 = 0x00000000,

        NV_GPU_ARCH_IMPLEMENTATION_NV63 = 0x00000003,
        NV_GPU_ARCH_IMPLEMENTATION_NV67 = 0x00000007,

        NV_GPU_ARCH_IMPLEMENTATION_G84 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_G86 = 0x00000006,

        NV_GPU_ARCH_IMPLEMENTATION_G92 = 0x00000002,
        NV_GPU_ARCH_IMPLEMENTATION_G94 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_G96 = 0x00000006,
        NV_GPU_ARCH_IMPLEMENTATION_G98 = 0x00000008,

        NV_GPU_ARCH_IMPLEMENTATION_GT200 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_GT212 = 0x00000002,
        NV_GPU_ARCH_IMPLEMENTATION_GT214 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_GT215 = 0x00000003,
        NV_GPU_ARCH_IMPLEMENTATION_GT216 = 0x00000005,
        NV_GPU_ARCH_IMPLEMENTATION_GT218 = 0x00000008,
        NV_GPU_ARCH_IMPLEMENTATION_MCP77 = 0x0000000A,
        NV_GPU_ARCH_IMPLEMENTATION_GT21C = 0x0000000B,
        NV_GPU_ARCH_IMPLEMENTATION_MCP79 = 0x0000000C,
        NV_GPU_ARCH_IMPLEMENTATION_GT21A = 0x0000000D,
        NV_GPU_ARCH_IMPLEMENTATION_MCP89 = 0x0000000F,

        NV_GPU_ARCH_IMPLEMENTATION_GF100 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_GF104 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_GF106 = 0x00000003,
        NV_GPU_ARCH_IMPLEMENTATION_GF108 = 0x00000001,

        NV_GPU_ARCH_IMPLEMENTATION_GF110 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_GF116 = 0x00000006,
        NV_GPU_ARCH_IMPLEMENTATION_GF117 = 0x00000007,
        NV_GPU_ARCH_IMPLEMENTATION_GF118 = 0x00000008,
        NV_GPU_ARCH_IMPLEMENTATION_GF119 = 0x00000009,

        NV_GPU_ARCH_IMPLEMENTATION_GK104 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_GK106 = 0x00000006,
        NV_GPU_ARCH_IMPLEMENTATION_GK107 = 0x00000007,
        NV_GPU_ARCH_IMPLEMENTATION_GK20A = 0x0000000A,
        NV_GPU_ARCH_IMPLEMENTATION_GK110 = 0x00000000,

        NV_GPU_ARCH_IMPLEMENTATION_GK208 = 0x00000008,

        NV_GPU_ARCH_IMPLEMENTATION_GM204 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_GM206 = 0x00000006,

        NV_GPU_ARCH_IMPLEMENTATION_GP100 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_GP000 = 0x00000001,
        NV_GPU_ARCH_IMPLEMENTATION_GP102 = 0x00000002,
        NV_GPU_ARCH_IMPLEMENTATION_GP104 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_GP106 = 0x00000006,
        NV_GPU_ARCH_IMPLEMENTATION_GP107 = 0x00000007,
        NV_GPU_ARCH_IMPLEMENTATION_GP108 = 0x00000008,

        NV_GPU_ARCH_IMPLEMENTATION_GV100 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_GV10B = 0x0000000B,

        NV_GPU_ARCH_IMPLEMENTATION_TU100 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_TU102 = 0x00000002,
        NV_GPU_ARCH_IMPLEMENTATION_TU104 = 0x00000004,
        NV_GPU_ARCH_IMPLEMENTATION_TU106 = 0x00000006,
        NV_GPU_ARCH_IMPLEMENTATION_TU116 = 0x00000008,
        NV_GPU_ARCH_IMPLEMENTATION_TU117 = 0x00000007,
        NV_GPU_ARCH_IMPLEMENTATION_TU000 = 0x00000001,

        NV_GPU_ARCH_IMPLEMENTATION_GA100 = 0x00000000,
        NV_GPU_ARCH_IMPLEMENTATION_GA102 = 0x00000002,
        NV_GPU_ARCH_IMPLEMENTATION_GA104 = 0x00000004,

    } NV_GPU_ARCH_IMPLEMENTATION_ID;

    typedef enum _NV_GPU_CHIP_REVISION
    {
        NV_GPU_CHIP_REV_EMULATION_QT = 0x00000000,   //!< QT chip
        NV_GPU_CHIP_REV_EMULATION_FPGA = 0x00000001, //!< FPGA implementation of the chipset
        NV_GPU_CHIP_REV_A01 = 0x00000011,            //!< First silicon chipset revision
        NV_GPU_CHIP_REV_A02 = 0x00000012,            //!< Second Silicon chipset revision
        NV_GPU_CHIP_REV_A03 = 0x00000013,            //!< Third Silicon chipset revision
        NV_GPU_CHIP_REV_UNKNOWN = 0xffffffff,        //!< Unknown chip revision
    } NV_GPU_CHIP_REVISION;

    //! \ingroup gpu
    //! Used in NvAPI_GPU_GetArchInfo()
    typedef struct
    {
        NvU32 version;

        union
        {
            NvU32 architecture;                     //!< architecture and architecture_id are the same. The former is NvU32 while the latter is an enum made for readability.
            NV_GPU_ARCHITECTURE_ID architecture_id; //!< specifies the architecture level for the GPU.
        };
        union
        {
            NvU32 implementation;                            //!< implementation and implementation_id are the same. The former is NvU32 while the latter is an enum made for readability.
            NV_GPU_ARCH_IMPLEMENTATION_ID implementation_id; //!< specifies the implementation of the architecture for the GPU.
        };
        union
        {
            NvU32 revision;                   //!< revision and revision_id are the same. The former is NvU32 while the latter is an enum made for readability.
            NV_GPU_CHIP_REVISION revision_id; //!< specifies the architecture revision of the GPU.
        };

    } NV_GPU_ARCH_INFO_V2;

    //! \ingroup gpu
    typedef NV_GPU_ARCH_INFO_V2 NV_GPU_ARCH_INFO;

//! \ingroup gpu
#define NV_GPU_ARCH_INFO_VER_1 MAKE_NVAPI_VERSION(NV_GPU_ARCH_INFO_V1, 1)

#define NV_GPU_ARCH_INFO_VER_2 MAKE_NVAPI_VERSION(NV_GPU_ARCH_INFO_V2, 2)

#define NV_GPU_ARCH_INFO_VER NV_GPU_ARCH_INFO_VER_2


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetArchInfo
    //
    //! \fn NvAPI_GPU_GetArchInfo(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_ARCH_INFO *pGpuArchInfo)
    //!  This function retrieves the architecture, implementation and chip revision for the specified GPU .
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //! \since Release: 85
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_GetArchInfo(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_ARCH_INFO *pGpuArchInfo);

///////////////////////////////////////////////////////////////////////////////////
//  I2C API
//  Provides ability to read or write data using I2C protocol.
//  These APIs allow I2C access only to DDC monitors

//! \addtogroup i2capi
//! @{
#define NVAPI_MAX_SIZEOF_I2C_DATA_BUFFER 4096

#define NVAPI_MAX_SIZEOF_I2C_REG_ADDRESS 4

#define NVAPI_DISPLAY_DEVICE_MASK_MAX 24

#define NVAPI_I2C_SPEED_DEPRECATED 0xFFFF


    typedef enum
    {
        NVAPI_I2C_SPEED_DEFAULT, //!< Set i2cSpeedKhz to I2C_SPEED_DEFAULT if default I2C speed is to be chosen, ie.use the current frequency setting.
        NVAPI_I2C_SPEED_3KHZ,
        NVAPI_I2C_SPEED_10KHZ,
        NVAPI_I2C_SPEED_33KHZ,
        NVAPI_I2C_SPEED_100KHZ,
        NVAPI_I2C_SPEED_200KHZ,
        NVAPI_I2C_SPEED_400KHZ,
    } NV_I2C_SPEED;

    //! Used in NvAPI_I2CRead() and NvAPI_I2CWrite()
    typedef struct
    {
        NvU32 version;         //!< The structure version.
        NvU32 displayMask;     //!< The Display Mask of the concerned display.
        NvU8 bIsDDCPort;       //!< This flag indicates either the DDC port (TRUE) or the communication port
                               //!< (FALSE) of the concerned display.
        NvU8 i2cDevAddress;    //!< The address of the I2C slave.  The address should be shifted left by one.  For
                               //!< example, the I2C address 0x50, often used for reading EDIDs, would be stored
                               //!< here as 0xA0.  This matches the position within the byte sent by the master, as
                               //!< the last bit is reserved to specify the read or write direction.
        NvU8 *pbI2cRegAddress; //!< The I2C target register address.  May be NULL, which indicates no register
                               //!< address should be sent.
        NvU32 regAddrSize;     //!< The size in bytes of target register address.  If pbI2cRegAddress is NULL, this
                               //!< field must be 0.
        NvU8 *pbData;          //!< The buffer of data which is to be read or written (depending on the command).
        NvU32 cbSize;          //!< The size of the data buffer, pbData, to be read or written.
        NvU32 i2cSpeed;        //!< The target speed of the transaction (between 28Kbps to 40Kbps; not guaranteed).
    } NV_I2C_INFO_V1;

    //! Used in NvAPI_I2CRead() and NvAPI_I2CWrite()
    typedef struct
    {
        NvU32 version;            //!< The structure version.
        NvU32 displayMask;        //!< The Display Mask of the concerned display.
        NvU8 bIsDDCPort;          //!< This flag indicates either the DDC port (TRUE) or the communication port
                                  //!< (FALSE) of the concerned display.
        NvU8 i2cDevAddress;       //!< The address of the I2C slave.  The address should be shifted left by one.  For
                                  //!< example, the I2C address 0x50, often used for reading EDIDs, would be stored
                                  //!< here as 0xA0.  This matches the position within the byte sent by the master, as
                                  //!< the last bit is reserved to specify the read or write direction.
        NvU8 *pbI2cRegAddress;    //!< The I2C target register address.  May be NULL, which indicates no register
                                  //!< address should be sent.
        NvU32 regAddrSize;        //!< The size in bytes of target register address.  If pbI2cRegAddress is NULL, this
                                  //!< field must be 0.
        NvU8 *pbData;             //!< The buffer of data which is to be read or written (depending on the command).
        NvU32 cbSize;             //!< The size of the data buffer, pbData, to be read or written.
        NvU32 i2cSpeed;           //!< Deprecated, Must be set to NVAPI_I2C_SPEED_DEPRECATED.
        NV_I2C_SPEED i2cSpeedKhz; //!< The target speed of the transaction in (kHz) (Chosen from the enum NV_I2C_SPEED).
    } NV_I2C_INFO_V2;

    //! Used in NvAPI_I2CRead() and NvAPI_I2CWrite()
    typedef struct
    {
        NvU32 version;            //!< The structure version.
        NvU32 displayMask;        //!< The Display Mask of the concerned display.
        NvU8 bIsDDCPort;          //!< This flag indicates either the DDC port (TRUE) or the communication port
                                  //!< (FALSE) of the concerned display.
        NvU8 i2cDevAddress;       //!< The address of the I2C slave.  The address should be shifted left by one.  For
                                  //!< example, the I2C address 0x50, often used for reading EDIDs, would be stored
                                  //!< here as 0xA0.  This matches the position within the byte sent by the master, as
                                  //!< the last bit is reserved to specify the read or write direction.
        NvU8 *pbI2cRegAddress;    //!< The I2C target register address.  May be NULL, which indicates no register
                                  //!< address should be sent.
        NvU32 regAddrSize;        //!< The size in bytes of target register address.  If pbI2cRegAddress is NULL, this
                                  //!< field must be 0.
        NvU8 *pbData;             //!< The buffer of data which is to be read or written (depending on the command).
        NvU32 cbSize;             //!< The size of the data buffer, pbData, to be read or written.
        NvU32 i2cSpeed;           //!< Deprecated, Must be set to NVAPI_I2C_SPEED_DEPRECATED.
        NV_I2C_SPEED i2cSpeedKhz; //!< The target speed of the transaction in (kHz) (Chosen from the enum NV_I2C_SPEED).
        NvU8 portId;              //!< The portid on which device is connected (remember to set bIsPortIdSet if this value is set)
                                  //!< Optional for pre-Kepler
        NvU32 bIsPortIdSet;       //!< set this flag on if and only if portid value is set
    } NV_I2C_INFO_V3;

    typedef NV_I2C_INFO_V3 NV_I2C_INFO;

#define NV_I2C_INFO_VER3 MAKE_NVAPI_VERSION(NV_I2C_INFO_V3, 3)

#define NV_I2C_INFO_VER2 MAKE_NVAPI_VERSION(NV_I2C_INFO_V2, 2)

#define NV_I2C_INFO_VER1 MAKE_NVAPI_VERSION(NV_I2C_INFO_V1, 1)


#define NV_I2C_INFO_VER NV_I2C_INFO_VER3

    //! @}

    /***********************************************************************************/

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:  NvAPI_I2CRead
    //
    //!  This function reads the data buffer from the I2C port.
    //!                 The I2C request must be for a DDC port: pI2cInfo->bIsDDCPort = 1.
    //!
    //!                 A data buffer size larger than 16 bytes may be rejected if a register address is specified.  In such a case,
    //!                 NVAPI_ARGUMENT_EXCEED_MAX_SIZE would be returned.
    //!
    //!                 If a register address is specified (i.e. regAddrSize is positive), then the transaction will be performed in
    //!                 the combined format described in the I2C specification.  The register address will be written, followed by
    //!                 reading into the data buffer.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 85
    //!
    //! \param [in]   hPhysicalGPU     GPU selection.
    //! \param [out]  NV_I2C_INFO     *pI2cInfo The I2C data input structure
    //!
    //! \retval   NVAPI_OK                            Completed request
    //! \retval   NVAPI_ERROR                         Miscellaneous error occurred.
    //! \retval   NVAPI_HANDLE_INVALIDATED            Handle passed has been invalidated (see user guide).
    //! \retval   NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  Handle passed is not a physical GPU handle.
    //! \retval   NVAPI_INCOMPATIBLE_STRUCT_VERSION   Structure version is not supported.
    //! \retval   NVAPI_INVALID_ARGUMENT - argument does not meet specified requirements
    //! \retval   NVAPI_ARGUMENT_EXCEED_MAX_SIZE - an argument exceeds the maximum
    //!
    //! \ingroup i2capi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_I2CRead(NvPhysicalGpuHandle hPhysicalGpu, NV_I2C_INFO *pI2cInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:  NvAPI_I2CWrite
    //
    //!  This function writes the data buffer to the I2C port.
    //!
    //!                 The I2C request must be for a DDC port: pI2cInfo->bIsDDCPort = 1.
    //!
    //!                 A data buffer size larger than 16 bytes may be rejected if a register address is specified.  In such a case,
    //!                 NVAPI_ARGUMENT_EXCEED_MAX_SIZE would be returned.
    //!
    //!                 If a register address is specified (i.e. regAddrSize is positive), then the register address will be written
    //!                 and the data buffer will immediately follow without a restart.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 85
    //!
    //! \param [in]   hPhysicalGPU     GPU selection.
    //! \param [in]   pI2cInfo         The I2C data input structure
    //!
    //! \retval   NVAPI_OK                            Completed request
    //! \retval   NVAPI_ERROR                         Miscellaneous error occurred.
    //! \retval   NVAPI_HANDLE_INVALIDATED            Handle passed has been invalidated (see user guide).
    //! \retval   NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  Handle passed is not a physical GPU handle.
    //! \retval   NVAPI_INCOMPATIBLE_STRUCT_VERSION    Structure version is not supported.
    //! \retval   NVAPI_INVALID_ARGUMENT              Argument does not meet specified requirements
    //! \retval   NVAPI_ARGUMENT_EXCEED_MAX_SIZE      Argument exceeds the maximum
    //!
    //! \ingroup i2capi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_I2CWrite(NvPhysicalGpuHandle hPhysicalGpu, NV_I2C_INFO *pI2cInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_WorkstationFeatureSetup
    //
    //! \fn NvAPI_GPU_WorkstationFeatureSetup(NvPhysicalGpuHandle hPhysicalGpu, NvU32 featureEnableMask, NvU32 featureDisableMask)
    //!   DESCRIPTION: This API configures the driver for a set of workstation features.
    //!                The driver can allocate the memory resources accordingly.
    //!
    //! SUPPORTED OS:  Windows 7
    //!
    //!
    //! \param [in]   hPhysicalGpu       Physical GPU Handle of the display adapter to be configured. GPU handles may be retrieved
    //!                                  using NvAPI_EnumPhysicalGPUs. A value of NULL is permitted and applies the same operation
    //!                                  to all GPU handles enumerated by NvAPI_EnumPhysicalGPUs.
    //! \param [in]   featureEnableMask  Mask of features the caller requests to enable for use
    //! \param [in]   featureDisableMask Mask of features the caller requests to disable
    //!
    //!                As a general rule, features in the enable and disable masks are expected to be disjoint, although the disable
    //!                mask has precedence and a feature flagged in both masks will be disabled.
    //!
    //! \retval ::NVAPI_OK                            configuration request succeeded
    //! \retval ::NVAPI_ERROR                         configuration request failed
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu is not a physical GPU handle.
    //! \retval ::NVAPI_GPU_WORKSTATION_FEATURE_INCOMPLETE  requested feature set does not have all resources allocated for completeness.
    //! \retval ::NVAPI_NO_IMPLEMENTATION             OS below Win7, implemented only for Win7 but returns NVAPI_OK on OS above Win7 to
    //!                                               keep compatibility with apps written against Win7.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    typedef enum
    {
        NVAPI_GPU_WORKSTATION_FEATURE_MASK_SWAPGROUP = 0x00000001,
        NVAPI_GPU_WORKSTATION_FEATURE_MASK_STEREO = 0x00000010,
        NVAPI_GPU_WORKSTATION_FEATURE_MASK_WARPING = 0x00000100,
        NVAPI_GPU_WORKSTATION_FEATURE_MASK_PIXINTENSITY = 0x00000200,
        NVAPI_GPU_WORKSTATION_FEATURE_MASK_GRAYSCALE = 0x00000400,
        NVAPI_GPU_WORKSTATION_FEATURE_MASK_BPC10 = 0x00001000
    } NVAPI_GPU_WORKSTATION_FEATURE_MASK;

    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_WorkstationFeatureSetup(__in NvPhysicalGpuHandle hPhysicalGpu, __in NvU32 featureEnableMask, __in NvU32 featureDisableMask);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_WorkstationFeatureQuery
    //
    //!   DESCRIPTION: This API queries the current set of workstation features.
    //!
    //! SUPPORTED OS:  Windows 7
    //!
    //!
    //! \param [in]   hPhysicalGpu       Physical GPU Handle of the display adapter to be configured. GPU handles may be retrieved
    //!                                  using NvAPI_EnumPhysicalGPUs.
    //! \param [out]  pConfiguredFeatureMask  Mask of features requested for use by client drivers
    //! \param [out]  pConsistentFeatureMask  Mask of features that have all resources allocated for completeness.
    //!
    //! \retval ::NVAPI_OK                            configuration request succeeded
    //! \retval ::NVAPI_ERROR                         configuration request failed
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  hPhysicalGpu is not a physical GPU handle.
    //! \retval ::NVAPI_NO_IMPLEMENTATION             OS below Win7, implemented only for Win7 but returns NVAPI_OK on OS above Win7 to
    //!                                               keep compatibility with apps written against Win7.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_WorkstationFeatureQuery(__in NvPhysicalGpuHandle hPhysicalGpu, __out_opt NvU32 *pConfiguredFeatureMask, __out_opt NvU32 *pConsistentFeatureMask);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetHDCPSupportStatus
    //
    //! \fn NvAPI_GPU_GetHDCPSupportStatus(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_GET_HDCP_SUPPORT_STATUS *pGetHDCPSupportStatus)
    //! DESCRIPTION: This function returns a GPU's HDCP support status.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 175
    //!
    //!  \retval ::NVAPI_OK
    //!  \retval ::NVAPI_ERROR
    //!  \retval ::NVAPI_INVALID_ARGUMENT
    //!  \retval ::NVAPI_HANDLE_INVALIDATED
    //!  \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE
    //!  \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION
    //
    ////////////////////////////////////////////////////////////////////////////////

    //! \addtogroup gpu
    //! @{

    //! HDCP fuse states - used in NV_GPU_GET_HDCP_SUPPORT_STATUS
    typedef enum _NV_GPU_HDCP_FUSE_STATE
    {
        NV_GPU_HDCP_FUSE_STATE_UNKNOWN = 0,
        NV_GPU_HDCP_FUSE_STATE_DISABLED = 1,
        NV_GPU_HDCP_FUSE_STATE_ENABLED = 2,
    } NV_GPU_HDCP_FUSE_STATE;

    //! HDCP key sources - used in NV_GPU_GET_HDCP_SUPPORT_STATUS
    typedef enum _NV_GPU_HDCP_KEY_SOURCE
    {
        NV_GPU_HDCP_KEY_SOURCE_UNKNOWN = 0,
        NV_GPU_HDCP_KEY_SOURCE_NONE = 1,
        NV_GPU_HDCP_KEY_SOURCE_CRYPTO_ROM = 2,
        NV_GPU_HDCP_KEY_SOURCE_SBIOS = 3,
        NV_GPU_HDCP_KEY_SOURCE_I2C_ROM = 4,
        NV_GPU_HDCP_KEY_SOURCE_FUSES = 5,
    } NV_GPU_HDCP_KEY_SOURCE;

    //! HDCP key source states - used in NV_GPU_GET_HDCP_SUPPORT_STATUS
    typedef enum _NV_GPU_HDCP_KEY_SOURCE_STATE
    {
        NV_GPU_HDCP_KEY_SOURCE_STATE_UNKNOWN = 0,
        NV_GPU_HDCP_KEY_SOURCE_STATE_ABSENT = 1,
        NV_GPU_HDCP_KEY_SOURCE_STATE_PRESENT = 2,
    } NV_GPU_HDCP_KEY_SOURCE_STATE;

    //! HDPC support status - used in NvAPI_GPU_GetHDCPSupportStatus()
    typedef struct
    {
        NvU32 version;                                   //! Structure version constucted by macro #NV_GPU_GET_HDCP_SUPPORT_STATUS
        NV_GPU_HDCP_FUSE_STATE hdcpFuseState;            //! GPU's HDCP fuse state
        NV_GPU_HDCP_KEY_SOURCE hdcpKeySource;            //! GPU's HDCP key source
        NV_GPU_HDCP_KEY_SOURCE_STATE hdcpKeySourceState; //! GPU's HDCP key source state
    } NV_GPU_GET_HDCP_SUPPORT_STATUS;

//! Macro for constructing the version for structure NV_GPU_GET_HDCP_SUPPORT_STATUS
#define NV_GPU_GET_HDCP_SUPPORT_STATUS_VER MAKE_NVAPI_VERSION(NV_GPU_GET_HDCP_SUPPORT_STATUS, 1)


    //! @}

    //!  \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_GetHDCPSupportStatus(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_GET_HDCP_SUPPORT_STATUS *pGetHDCPSupportStatus);

    //! \addtogroup gpucuda
    //! @{

    //! defgroup nvcomp_gpu_top NVIDIA Compute GPU Topology Flags
    //! @{

#define NV_COMPUTE_GPU_TOPOLOGY_PHYSICS_CAPABLE NV_BIT(0)     //!< This is Read only GPU flag - Physics capable GPU.

#define NV_COMPUTE_GPU_TOPOLOGY_PHYSICS_ENABLE NV_BIT(1)      //!< This is Read/Write GPU flag - Indicates GPU is already enabled for physics.

#define NV_COMPUTE_GPU_TOPOLOGY_PHYSICS_DEDICATED NV_BIT(2)   //!< This is Read only GPU flag - Physics enabled GPU which is *dedicated* for physics indicates

                                                              //!< this compute capable GPU was automatically made usable for Physx on CUDA.
#define NV_COMPUTE_GPU_TOPOLOGY_PHYSICS_RECOMMENDED NV_BIT(3) //!< This is Read only GPU flag - Physics GPU which is recommended by the driver.

#define NV_COMPUTE_GPU_TOPOLOGY_CUDA_AVAILABLE NV_BIT(4)      //!< This is Read only GPU flag.

#define NV_COMPUTE_GPU_TOPOLOGY_CUDA_CAPABLE NV_BIT(16)       //!< This is Read only GPU flag.

#define NV_COMPUTE_GPU_TOPOLOGY_CUDA_DISABLED NV_BIT(17)      //!< This is Read only GPU flag.

#define NV_COMPUTE_GPU_TOPOLOGY_PHYSICS_AVAILABLE NV_BIT(21)  //!< This is Read only GPU flag - PhysX is able to use this GPU (PhysX is installed, etc)


    //! @}

    typedef struct
    {
        NvU32 version;  //!< Structure version
        NvU32 gpuCount; //!< Total number of compute-capable GPUs

        struct
        {
            NvPhysicalGpuHandle hPhysicalGpu; //!< Compute-capable physical GPU handle
            NvU32 flags;                      //!< One or more flags from \ref nvcomp_gpu_top

        } computeGpus[NVAPI_MAX_GPU_PER_TOPOLOGY]; //!< Array of compute-capable physical GPUs.

    } NV_COMPUTE_GPU_TOPOLOGY_V1;

    typedef struct _NV_COMPUTE_GPU
    {
        NvPhysicalGpuHandle hPhysicalGpu; //!< Compute-capable physical GPU handle
        NvU32 flags;                      //!< One or more flags from \ref nvcomp_gpu_top

    } NV_COMPUTE_GPU;

    typedef struct _NV_COMPUTE_GPU_TOPOLOGY_V2
    {
        NvU32 version;               //!< Structure version
        NvU32 gpuCount;              //!< Size of array
        NV_COMPUTE_GPU *computeGpus; //!< Array of compute-capable physical GPUs (allocate memory of size of Physical gpuCount of system).

    } NV_COMPUTE_GPU_TOPOLOGY_V2;

//! Macro for constructing the version field of NV_COMPUTE_GPU_TOPOLOGY
#define NV_COMPUTE_GPU_TOPOLOGY_VER1 MAKE_NVAPI_VERSION(NV_COMPUTE_GPU_TOPOLOGY_V1, 1)


#define NV_COMPUTE_GPU_TOPOLOGY_VER MAKE_NVAPI_VERSION(NV_COMPUTE_GPU_TOPOLOGY_V2, 2)

    typedef NV_COMPUTE_GPU_TOPOLOGY_V2 NV_COMPUTE_GPU_TOPOLOGY;

    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:  NvAPI_GPU_CudaEnumComputeCapableGpus
    //
    //! DESCRIPTION:   This API enumerates one or more compute-capable GPUs.
    //!                Note that this API is deprecated and should no longer be used for new software development.
    //! \deprecated  Do not use this function - it is deprecated in release 319.
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [inout]      pComputeTopo  Pointer to the structure NV_COMPUTE_GPU_TOPOLOGY.
    //!
    //! \retval ::NVAPI_OK                           The request was completed successfully.
    //!                                              The gpuCount indicates if one or more compute-capable GPUs are found.
    //!                                              gpuCount >= 1 means atleast one compute-capable GPU is found.
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION  Structure version is not supported, initialize to NV_COMPUTE_GPU_TOPOLOGY_VER.
    //! \retval ::NVAPI_ERROR                        Enumeration of the GPUs failed. Make sure at least one NVIDIA GPU exists in the system.
    //!
    //! \ingroup gpucuda
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 319.")
        NVAPI_INTERFACE NvAPI_GPU_CudaEnumComputeCapableGpus(__inout NV_COMPUTE_GPU_TOPOLOGY *pComputeTopo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetTachReading
    //
    //!   DESCRIPTION: This API retrieves the fan speed tachometer reading for the specified physical GPU.
    //!
    //!   HOW TO USE:
    //!                 - NvU32 Value = 0;
    //!                 - ret = NvAPI_GPU_GetTachReading(hPhysicalGpu, &Value);
    //!                 - On call success:
    //!                 - Value contains the tachometer reading
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \param [in]    hPhysicalGpu   GPU selection.
    //! \param [out]   pValue         Pointer to a variable to get the tachometer reading
    //!
    //! \retval ::NVAPI_OK - completed request
    //! \retval ::NVAPI_ERROR - miscellaneous error occurred
    //! \retval ::NVAPI_NOT_SUPPORTED - functionality not supported
    //! \retval ::NVAPI_API_NOT_INTIALIZED - nvapi not initialized
    //! \retval ::NVAPI_INVALID_ARGUMENT - invalid argument passed
    //! \retval ::NVAPI_HANDLE_INVALIDATED - handle passed has been invalidated (see user guide)
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE - handle passed is not a physical GPU handle
    //!
    //! \ingroup gpucooler
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetTachReading(NvPhysicalGpuHandle hPhysicalGPU, NvU32 *pValue);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_GetECCStatusInfo
    //
    //! \fn NvAPI_GPU_GetECCStatusInfo(NvPhysicalGpuHandle hPhysicalGpu,
    //!                                           NV_GPU_ECC_STATUS_INFO *pECCStatusInfo);
    //! DESCRIPTION:     This function returns ECC memory status information.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \param [in]      hPhysicalGpu      A handle identifying the physical GPU for which ECC
    //!                                    status information is to be retrieved.
    //! \param [out]     pECCStatusInfo    A pointer to an ECC status structure.
    //!
    //! \retval ::NVAPI_OK                  The request was completed successfully.
    //! \retval ::NVAPI_ERROR               An unknown error occurred.
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE The provided GPU handle is not a physical GPU handle.
    //! \retval ::NVAPI_INVALID_HANDLE      The provided GPU handle is invalid.
    //! \retval ::NVAPI_HANDLE_INVALIDATED  The provided GPU handle is no longer valid.
    //! \retval ::NVAPI_INVALID_POINTER     An invalid argument pointer was provided.
    //! \retval ::NVAPI_NOT_SUPPORTED       The request is not supported.
    //! \retval ::NVAPI_API_NOT_INTIALIZED  NvAPI was not yet initialized.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \addtogroup gpuecc
    //! Used in NV_GPU_ECC_STATUS_INFO.
    typedef enum _NV_ECC_CONFIGURATION
    {
        NV_ECC_CONFIGURATION_NOT_SUPPORTED = 0,
        NV_ECC_CONFIGURATION_DEFERRED,  //!< Changes require a POST to take effect
        NV_ECC_CONFIGURATION_IMMEDIATE, //!< Changes can optionally be made to take effect immediately
    } NV_ECC_CONFIGURATION;

    //! \ingroup gpuecc
    //! Used in NvAPI_GPU_GetECCStatusInfo().
    typedef struct
    {
        NvU32 version;                             //!< Structure version
        NvU32 isSupported : 1;                     //!< ECC memory feature support
        NV_ECC_CONFIGURATION configurationOptions; //!< Supported ECC memory feature configuration options
        NvU32 isEnabled : 1;                       //!< Active ECC memory setting
    } NV_GPU_ECC_STATUS_INFO;

//! \ingroup gpuecc
//! Macro for constructing the version field of NV_GPU_ECC_STATUS_INFO
#define NV_GPU_ECC_STATUS_INFO_VER MAKE_NVAPI_VERSION(NV_GPU_ECC_STATUS_INFO, 1)


    //! \ingroup gpuecc
    NVAPI_INTERFACE NvAPI_GPU_GetECCStatusInfo(NvPhysicalGpuHandle hPhysicalGpu,
                                               NV_GPU_ECC_STATUS_INFO *pECCStatusInfo);

    //! \ingroup gpuecc
    //! Used in NvAPI_GPU_GetECCErrorInfo()/
    typedef struct
    {
        NvU32 version; //!< Structure version
        struct
        {
            NvU64 singleBitErrors; //!< Number of single-bit ECC errors detected since last boot
            NvU64 doubleBitErrors; //!< Number of double-bit ECC errors detected since last boot
        } current;
        struct
        {
            NvU64 singleBitErrors; //!< Number of single-bit ECC errors detected since last counter reset
            NvU64 doubleBitErrors; //!< Number of double-bit ECC errors detected since last counter reset
        } aggregate;
    } NV_GPU_ECC_ERROR_INFO;

//! \ingroup gpuecc
//! Macro for constructing the version field of NV_GPU_ECC_ERROR_INFO
#define NV_GPU_ECC_ERROR_INFO_VER MAKE_NVAPI_VERSION(NV_GPU_ECC_ERROR_INFO, 1)


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_GetECCErrorInfo
    //
    //! \fn NvAPI_GPU_GetECCErrorInfo(NvPhysicalGpuHandle hPhysicalGpu,
    //!                                          NV_GPU_ECC_ERROR_INFO *pECCErrorInfo);
    //!
    //! DESCRIPTION:     This function returns ECC memory error information.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \param [in]      hPhysicalGpu  A handle identifying the physical GPU for
    //!                                which ECC error information is to be
    //!                                retrieved.
    //! \param [out]     pECCErrorInfo A pointer to an ECC error structure.
    //!
    //! \retval ::NVAPI_OK  The request was completed successfully.
    //! \retval ::NVAPI_ERROR  An unknown error occurred.
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  The provided GPU handle is not a physical GPU handle.
    //! \retval ::NVAPI_INVALID_ARGUMENT  incorrect param value
    //! \retval ::NVAPI_INVALID_POINTER  An invalid argument pointer was provided.
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION  structure version is not supported, initialize to NV_GPU_ECC_ERROR_INFO_VER.
    //! \retval ::NVAPI_HANDLE_INVALIDATED  The provided GPU handle is no longer valid.
    //! \retval ::NVAPI_NOT_SUPPORTED  The request is not supported.
    //! \retval ::NVAPI_API_NOT_INTIALIZED  NvAPI was not yet initialized.
    //
    ///////////////////////////////////////////////////////////////////////////////
    //! \ingroup gpuecc

    NVAPI_INTERFACE NvAPI_GPU_GetECCErrorInfo(NvPhysicalGpuHandle hPhysicalGpu,
                                              NV_GPU_ECC_ERROR_INFO *pECCErrorInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_ResetECCErrorInfo
    //
    //! DESCRIPTION:     This function resets ECC memory error counters.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \requires Administrator privileges since release 430.39
    //!
    //! \param [in]     hPhysicalGpu     A handle identifying the physical GPU for
    //!                                  which ECC error information is to be
    //!                                  cleared.
    //! \param [in]     bResetCurrent    Reset the current ECC error counters.
    //! \param [in]     bResetAggregate  Reset the aggregate ECC error counters.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!          specific meaning for this API, they are listed below.
    //!
    //! \retval ::NVAPI_INVALID_USER_PRIVILEGE       - The application will require Administrator privileges to access this API.
    //!                                                The application can be elevated to a higher permission level by selecting "Run as Administrator".
    //!
    //! \ingroup gpuecc
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ResetECCErrorInfo(NvPhysicalGpuHandle hPhysicalGpu, NvU8 bResetCurrent,
                                                NvU8 bResetAggregate);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_GetECCConfigurationInfo
    //
    //! \fn NvAPI_GPU_GetECCConfigurationInfo(NvPhysicalGpuHandle hPhysicalGpu,
    //!                             NV_GPU_ECC_CONFIGURATION_INFO *pECCConfigurationInfo);
    //! DESCRIPTION:     This function returns ECC memory configuration information.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \param [in]      hPhysicalGpu  A handle identifying the physical GPU for
    //!                                which ECC configuration information
    //!                               is to be retrieved.
    //! \param [out]     pECCConfigurationInfo  A pointer to an ECC
    //!                                                configuration structure.
    //!
    //! \retval ::NVAPI_OK  The request was completed successfully.
    //! \retval ::NVAPI_ERROR  An unknown error occurred.
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  The provided GPU handle is not a physical GPU handle.
    //! \retval ::NVAPI_INVALID_HANDLE  The provided GPU handle is invalid.
    //! \retval ::NVAPI_HANDLE_INVALIDATED  The provided GPU handle is no longer valid.
    //! \retval ::NVAPI_INVALID_POINTER  An invalid argument pointer was provided.
    //! \retval ::NVAPI_NOT_SUPPORTED  The request is not supported.
    //! \retval ::NVAPI_API_NOT_INTIALIZED  NvAPI was not yet initialized.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpuecc
    //! Used in NvAPI_GPU_GetECCConfigurationInfo().
    typedef struct
    {
        NvU32 version;                //! Structure version
        NvU32 isEnabled : 1;          //! Current ECC configuration stored in non-volatile memory
        NvU32 isEnabledByDefault : 1; //! Factory default ECC configuration (static)
    } NV_GPU_ECC_CONFIGURATION_INFO;

//! \ingroup gpuecc
//! Macro for consstructing the verion field of NV_GPU_ECC_CONFIGURATION_INFO
#define NV_GPU_ECC_CONFIGURATION_INFO_VER MAKE_NVAPI_VERSION(NV_GPU_ECC_CONFIGURATION_INFO, 1)


    //! \ingroup gpuecc
    NVAPI_INTERFACE NvAPI_GPU_GetECCConfigurationInfo(NvPhysicalGpuHandle hPhysicalGpu,
                                                      NV_GPU_ECC_CONFIGURATION_INFO *pECCConfigurationInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_SetECCConfiguration
    //
    //! DESCRIPTION:     This function updates the ECC memory configuration setting.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \requires Administrator privileges since release 430.39
    //!
    //! \param [in]      hPhysicalGpu    A handle identifying the physical GPU for
    //!                                  which to update the ECC configuration
    //!                                  setting.
    //! \param [in]      bEnable         The new ECC configuration setting.
    //! \param [in]      bEnableImmediately   Request that the new setting take effect immediately.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!          specific meaning for this API, they are listed below.
    //!
    //! \retval ::NVAPI_INVALID_CONFIGURATION        - Possibly SLI is enabled. Disable SLI and retry.
    //! \retval ::NVAPI_INVALID_USER_PRIVILEGE       - The application will require Administrator privileges to access this API.
    //!                                                The application can be elevated to a higher permission level by selecting "Run as Administrator".
    //!
    //! \ingroup gpuecc
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_SetECCConfiguration(NvPhysicalGpuHandle hPhysicalGpu, NvU8 bEnable,
                                                  NvU8 bEnableImmediately);

    // The following enum is providing definitions for events signaled by a Quadro Sync (QSYNC) device.
    // QSYNC event broadcast is supported for Windows 10 and later OS.
    typedef enum
    {
        NV_QSYNC_EVENT_NONE = 0,
        NV_QSYNC_EVENT_SYNC_LOSS = 1,      // Frame Lock sync loss event
        NV_QSYNC_EVENT_SYNC_GAIN = 2,      // Frame Lock sync gain event
        NV_QSYNC_EVENT_HOUSESYNC_GAIN = 3, // House cable gain(plug in) event
        NV_QSYNC_EVENT_HOUSESYNC_LOSS = 4, // House cable loss(plug out) event
        NV_QSYNC_EVENT_RJ45_GAIN = 5,      // RJ45 cable gain(plug in) event
        NV_QSYNC_EVENT_RJ45_LOSS = 6,      // RJ45 cable loss(plug out) event
    } NV_QSYNC_EVENT;

    typedef struct
    {
        NV_QSYNC_EVENT qsyncEvent; // One of the value of the enum NV_QSYNC_EVENT
        NvU32 reserved[7];         // Reserved for future use. Do not use this.
    } NV_QSYNC_EVENT_DATA;

    //! Callback for QSYNC event
    typedef void(__cdecl *NVAPI_CALLBACK_QSYNCEVENT)(NV_QSYNC_EVENT_DATA qyncEventData, void *callbackParam);

    //! Enum for Event IDs
    typedef enum
    {
        NV_EVENT_TYPE_NONE = 0,
        NV_EVENT_TYPE_QSYNC = 6,
    } NV_EVENT_TYPE;

    //! Core NV_EVENT_REGISTER_CALLBACK structure declaration
    typedef struct
    {
        NvU32 version;         //!< version field to ensure minimum version compatibility
        NV_EVENT_TYPE eventId; //!< ID of the event being sent
        void *callbackParam;   //!< This value will be passed back to the callback function when an event occurs
        union
        {
            NVAPI_CALLBACK_QSYNCEVENT nvQSYNCEventCallback; //!< Callback function pointer for QSYNC events
        } nvCallBackFunc;

    } NV_EVENT_REGISTER_CALLBACK, *PNV_EVENT_REGISTER_CALLBACK;

//! Macro for constructing the version field of ::NV_EVENT_REGISTER_CALLBACK
#define NV_EVENT_REGISTER_CALLBACK_VERSION MAKE_NVAPI_VERSION(NV_EVENT_REGISTER_CALLBACK, 1)


    //! \ingroup gpu
    typedef enum _NV_GPU_WORKSTATION_FEATURE_TYPE
    {
        NV_GPU_WORKSTATION_FEATURE_TYPE_NVIDIA_RTX_VR_READY = 1,                                               //!< NVIDIA RTX VR Ready
        NV_GPU_WORKSTATION_FEATURE_TYPE_QUADRO_VR_READY = NV_GPU_WORKSTATION_FEATURE_TYPE_NVIDIA_RTX_VR_READY, //!< DEPRECATED name - do not use
        NV_GPU_WORKSTATION_FEATURE_TYPE_PROVIZ = 2,
    } NV_GPU_WORKSTATION_FEATURE_TYPE;

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_GPU_QueryWorkstationFeatureSupport
    //
    //! \fn NvAPI_GPU_QueryWorkstationFeatureSupport(NvPhysicalGpuHandle physicalGpu, NV_GPU_WORKSTATION_FEATURE_TYPE gpuWorkstationFeature)
    //! \code
    //! DESCRIPTION:     Indicates whether a queried workstation feature is supported by the requested GPU.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \since Release: 440
    //!
    //! DESCRIPTION:     This API, when called with a valid physical gpu handle as Input, lets caller know whether the given workstation feature is supported by this GPU.
    //!
    //! PARAMETERS:      physicalGpu(IN)            : The handle of the GPU for the which caller wants to get the support information.
    //!                  gpuWorkstationFeature(IN ) : The feature for the GPU in question. One of the values from enum NV_GPU_WORKSTATION_FEATURE_TYPE.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status listed below
    //!
    //! \retval ::NVAPI_OK the queried workstation feature is supported on the given GPU.
    //! \retval ::NVAPI_NO_IMPLEMENTATION the current driver doesn't support this interface.
    //! \retval ::NVAPI_INVALID_HANDLE the incoming physicalGpu handle is invalid.
    //! \retval ::NVAPI_NOT_SUPPORTED the requested gpuWorkstationFeature is not supported in the selected GPU.
    //! \retval ::NVAPI_SETTING_NOT_FOUND the requested gpuWorkstationFeature is unknown to the current driver version.
    //!
    //! \endcode
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_QueryWorkstationFeatureSupport(NvPhysicalGpuHandle physicalGpu, NV_GPU_WORKSTATION_FEATURE_TYPE gpuWorkstationFeature);

    //! \ingroup gpu
    typedef struct
    {
        NvU32 version;          //!< version of this structure
        NvU32 width;            //!< width of the input texture
        NvU32 height;           //!< height of the input texture
        float *blendingTexture; //!< array of floating values building an intensity RGB texture
    } NV_SCANOUT_INTENSITY_DATA_V1;

    //! \ingroup gpu
    typedef struct
    {
        NvU32 version;           //!< version of this structure
        NvU32 width;             //!< width of the input texture
        NvU32 height;            //!< height of the input texture
        float *blendingTexture;  //!< array of floating values building an intensity RGB texture
        float *offsetTexture;    //!< array of floating values building an offset texture
        NvU32 offsetTexChannels; //!< number of channels per pixel in the offset texture
    } NV_SCANOUT_INTENSITY_DATA_V2;

    typedef NV_SCANOUT_INTENSITY_DATA_V2 NV_SCANOUT_INTENSITY_DATA;

//! \ingroup gpu
#define NV_SCANOUT_INTENSITY_DATA_VER1 MAKE_NVAPI_VERSION(NV_SCANOUT_INTENSITY_DATA_V1, 1)

#define NV_SCANOUT_INTENSITY_DATA_VER2 MAKE_NVAPI_VERSION(NV_SCANOUT_INTENSITY_DATA_V2, 2)

#define NV_SCANOUT_INTENSITY_DATA_VER NV_SCANOUT_INTENSITY_DATA_VER2


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME: NvAPI_GPU_SetScanoutIntensity
    //
    //!   DESCRIPTION: This API enables and sets up per-pixel intensity feature on the specified display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   displayId              combined physical display and GPU identifier of the display to apply the intensity control.
    //! \param [in]   scanoutIntensityData   the intensity texture info.
    //! \param [out]  pbSticky(OUT)           indicates whether the settings will be kept over a reboot.
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input parameters.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI not initialized.
    //! \retval ::NVAPI_NOT_SUPPORTED Interface not supported by the driver used, or only supported on selected GPUs
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input data.
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION NV_SCANOUT_INTENSITY_DATA structure version mismatch.
    //! \retval ::NVAPI_OK Feature enabled.
    //! \retval ::NVAPI_ERROR Miscellaneous error occurred.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_SetScanoutIntensity(NvU32 displayId, NV_SCANOUT_INTENSITY_DATA *scanoutIntensityData, int *pbSticky);

    //! \ingroup gpu
    typedef struct _NV_SCANOUT_INTENSITY_STATE_DATA
    {
        NvU32 version;  //!< version of this structure
        NvU32 bEnabled; //!< intensity is enabled or not
    } NV_SCANOUT_INTENSITY_STATE_DATA;

//! \ingroup gpu
#define NV_SCANOUT_INTENSITY_STATE_VER MAKE_NVAPI_VERSION(NV_SCANOUT_INTENSITY_STATE_DATA, 1)


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME: NvAPI_GPU_GetScanoutIntensityState
    //
    //!   DESCRIPTION: This API queries current state of the intensity feature on the specified display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId                       combined physical display and GPU identifier of the display to query the configuration.
    //! \param [in,out] scanoutIntensityStateData       intensity state data.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!          specific meaning for this API, they are listed below.
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input parameters.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI not initialized.
    //! \retval ::NVAPI_NOT_SUPPORTED Interface not supported by the driver used, or only supported on selected GPUs.
    //! \retval ::NVAPI_OK Feature enabled.
    //! \retval ::NVAPI_ERROR Miscellaneous error occurred.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetScanoutIntensityState(__in NvU32 displayId, __inout NV_SCANOUT_INTENSITY_STATE_DATA *scanoutIntensityStateData);

    //! \ingroup gpu
    typedef enum
    {
        NV_GPU_WARPING_VERTICE_FORMAT_TRIANGLESTRIP_XYUVRQ = 0,
        NV_GPU_WARPING_VERTICE_FORMAT_TRIANGLES_XYUVRQ = 1,
    } NV_GPU_WARPING_VERTICE_FORMAT;

    //! \ingroup gpu
    typedef struct
    {
        NvU32 version;                              //!< version of this structure
        float *vertices;                            //!< width of the input texture
        NV_GPU_WARPING_VERTICE_FORMAT vertexFormat; //!< format of the input vertices
        int numVertices;                            //!< number of the input vertices
        NvSBox *textureRect;                        //!< rectangle in desktop coordinates describing the source area for the warping
    } NV_SCANOUT_WARPING_DATA;

//! \ingroup gpu
#define NV_SCANOUT_WARPING_VER MAKE_NVAPI_VERSION(NV_SCANOUT_WARPING_DATA, 1)


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME: NvAPI_GPU_SetScanoutWarping
    //
    //!   DESCRIPTION: This API enables and sets up the warping feature on the specified display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]    displayId               Combined physical display and GPU identifier of the display to apply the intensity control
    //! \param [in]    scanoutWarpingData      The warping data info
    //! \param [out]   pbSticky                Indicates whether the settings will be kept over a reboot.
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input parameters.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI not initialized.
    //! \retval ::NVAPI_NOT_SUPPORTED Interface not supported by the driver used, or only supported on selected GPUs
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input data.
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION NV_SCANOUT_WARPING_DATA structure version mismatch.
    //! \retval ::NVAPI_OK Feature enabled.
    //! \retval ::NVAPI_ERROR Miscellaneous error occurred.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_GPU_SetScanoutWarping(NvU32 displayId, NV_SCANOUT_WARPING_DATA *scanoutWarpingData, int *piMaxNumVertices, int *pbSticky);

    //! \ingroup gpu
    typedef struct _NV_SCANOUT_WARPING_STATE_DATA
    {
        NvU32 version;  //!< version of this structure
        NvU32 bEnabled; //!< warping is enabled or not
    } NV_SCANOUT_WARPING_STATE_DATA;

//! \ingroup gpu
#define NV_SCANOUT_WARPING_STATE_VER MAKE_NVAPI_VERSION(NV_SCANOUT_WARPING_STATE_DATA, 1)


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME: NvAPI_GPU_GetScanoutWarpingState
    //
    //!   DESCRIPTION: This API queries current state of the warping feature on the specified display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId                      combined physical display and GPU identifier of the display to query the configuration.
    //! \param [in,out] scanoutWarpingStateData        warping state data.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!          specific meaning for this API, they are listed below.
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input parameters.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI not initialized.
    //! \retval ::NVAPI_NOT_SUPPORTED Interface not supported by the driver used, or only supported on selected GPUs.
    //! \retval ::NVAPI_OK Feature enabled.
    //! \retval ::NVAPI_ERROR Miscellaneous error occurred.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetScanoutWarpingState(__in NvU32 displayId, __inout NV_SCANOUT_WARPING_STATE_DATA *scanoutWarpingStateData);

    typedef enum
    {
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_WARPING_RESAMPLING_METHOD = 0
    } NV_GPU_SCANOUT_COMPOSITION_PARAMETER;

    //! This enum defines a collection of possible scanout composition values that can be used to configure
    //! possible scanout composition settings.  (Currently the only parameter defined is the WARPING_RESAMPLING_METHOD).
    typedef enum
    {
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_SET_TO_DEFAULT = 0, // Set parameter to default value.
        // WARPING_RESAMPLING_METHOD section:
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE_WARPING_RESAMPLING_METHOD_BILINEAR = 0x100,
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE_WARPING_RESAMPLING_METHOD_BICUBIC_TRIANGULAR = 0x101,
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE_WARPING_RESAMPLING_METHOD_BICUBIC_BELL_SHAPED = 0x102,
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE_WARPING_RESAMPLING_METHOD_BICUBIC_BSPLINE = 0x103,
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE_WARPING_RESAMPLING_METHOD_BICUBIC_ADAPTIVE_TRIANGULAR = 0x104,
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE_WARPING_RESAMPLING_METHOD_BICUBIC_ADAPTIVE_BELL_SHAPED = 0x105,
        NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE_WARPING_RESAMPLING_METHOD_BICUBIC_ADAPTIVE_BSPLINE = 0x106
    } NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE;

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME: NvAPI_GPU_SetScanoutCompositionParameter
    //
    //!   DESCRIPTION: This API sets various parameters that configure the scanout composition feature on the specified display.
    //!                (currently there is only one configurable parameter defined: WARPING_RESAMPLING_METHOD,
    //!                 but this function is designed to support the addition of parameters as needed.)
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]    displayId               Combined physical display and GPU identifier of the display to apply the intensity control
    //! \param [in]    parameter               The scanout composition parameter to be set
    //! \param [in]    parameterValue          The data to be set for the specified parameter
    //! \param [in]    pContainer              Additional container for data associated with the specified parameter
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input parameters.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI not initialized.
    //! \retval ::NVAPI_NOT_SUPPORTED Interface not supported by the driver used, or only supported on selected GPUs
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input data.
    //! \retval ::NVAPI_OK Feature enabled.
    //! \retval ::NVAPI_ERROR Miscellaneous error occurred.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_GPU_SetScanoutCompositionParameter(NvU32 displayId, NV_GPU_SCANOUT_COMPOSITION_PARAMETER parameter,
                                                             NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE parameterValue, float *pContainer);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME: NvAPI_GPU_GetScanoutCompositionParameter
    //
    //!   DESCRIPTION: This API queries current state of one of the various scanout composition parameters on the specified display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId           combined physical display and GPU identifier of the display to query the configuration.
    //! \param [in]     parameter           scanout composition parameter to by queried.
    //! \param [out] parameterData          scanout composition parameter data.
    //! \param [out]   pContainer           Additional container for returning data associated with the specified parameter
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!          specific meaning for this API, they are listed below.
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input parameters.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI not initialized.
    //! \retval ::NVAPI_NOT_SUPPORTED Interface not supported by the driver used, or only supported on selected GPUs.
    //! \retval ::NVAPI_OK Feature enabled.
    //! \retval ::NVAPI_ERROR Miscellaneous error occurred.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetScanoutCompositionParameter(__in NvU32 displayId, __in NV_GPU_SCANOUT_COMPOSITION_PARAMETER parameter,
                                                             __out NV_GPU_SCANOUT_COMPOSITION_PARAMETER_VALUE *parameterData, __out float *pContainer);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME: NvAPI_GPU_GetScanoutConfiguration
    //
    //!   DESCRIPTION: This API queries the desktop and scanout portion of the specified display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId          combined physical display and GPU identifier of the display to query the configuration.
    //! \param [in,out] desktopRect        desktop area of the display in desktop coordinates.
    //! \param [in,out] scanoutRect        scanout area of the display relative to desktopRect.
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT Invalid input parameters.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI not initialized.
    //! \retval ::NVAPI_NOT_SUPPORTED Interface not supported by the driver used, or only supported on selected GPUs.
    //! \retval ::NVAPI_OK Feature enabled.
    //! \retval ::NVAPI_ERROR Miscellaneous error occurred.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetScanoutConfiguration(NvU32 displayId, NvSBox *desktopRect, NvSBox *scanoutRect);

    //! \ingroup gpu
    //! Used in NvAPI_GPU_GetScanoutConfigurationEx().
    typedef struct _NV_SCANOUT_INFORMATION
    {
        NvU32 version; //!< Structure version, needs to be initialized with NV_SCANOUT_INFORMATION_VER.

        NvSBox sourceDesktopRect;         //!< Operating system display device rect in desktop coordinates displayId is scanning out from.
        NvSBox sourceViewportRect;        //!< Area inside the sourceDesktopRect which is scanned out to the display.
        NvSBox targetViewportRect;        //!< Area inside the rect described by targetDisplayWidth/Height sourceViewportRect is scanned out to.
        NvU32 targetDisplayWidth;         //!< Horizontal size of the active resolution scanned out to the display.
        NvU32 targetDisplayHeight;        //!< Vertical size of the active resolution scanned out to the display.
        NvU32 cloneImportance;            //!< If targets are cloned views of the sourceDesktopRect the cloned targets have an importance assigned (0:primary,1 secondary,...).
        NV_ROTATE sourceToTargetRotation; //!< Rotation performed between the sourceViewportRect and the targetViewportRect.
    } NV_SCANOUT_INFORMATION;

#define NV_SCANOUT_INFORMATION_VER MAKE_NVAPI_VERSION(NV_SCANOUT_INFORMATION, 1)


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME: NvAPI_GPU_GetScanoutConfigurationEx
    //
    //!   DESCRIPTION: This API queries the desktop and scanout portion of the specified display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! \since Release: 331
    //!
    //! \param [in]     displayId            combined physical display and GPU identifier of the display to query the configuration.
    //! \param [in,out] pScanoutInformation  desktop area to displayId mapping information.
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetScanoutConfigurationEx(__in NvU32 displayId, __inout NV_SCANOUT_INFORMATION *pScanoutInformation);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetAdapterIdFromPhysicalGpu
    //
    //!   DESCRIPTION: This API returns the OS-AdapterID from physicalGpu Handle. OS-AdapterID
    //!                is the Adapter ID that is used by Win7 CCD APIs.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]    hPhysicalGpu   PhysicalGpu Handle
    //! \param [out]   pOSAdapterId   Returns OS-AdapterId, it is typed as void * to
    //!                               avoid dependency with windows.h. User must type cast it to LUID.
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT pOSAdapterId is NULL; hPhysicalGpu is invalid
    //! \retval ::NVAPI_OK *pOSAdapterId contains valid data.
    //! \retval ::NVAPI_NOT_SUPPORTED  This API is not supported on the system.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetAdapterIdFromPhysicalGpu(NvPhysicalGpuHandle hPhysicalGpu, void *pOSAdapterId);

    //! \ingroup gpu
    typedef enum _NV_VIRTUALIZATION_MODE
    {
        NV_VIRTUALIZATION_MODE_NONE = 0,     //!< Represents Bare Metal GPU
        NV_VIRTUALIZATION_MODE_NMOS = 1,     //!< Represents GPU-Passthrough
        NV_VIRTUALIZATION_MODE_VGX = 2,      //!< Represents vGPU inside virtual machine
        NV_VIRTUALIZATION_MODE_HOST_VGPU = 3 //!< Represents VGX hypervisor in vGPU mode
    } NV_VIRTUALIZATION_MODE;

    //! \ingroup gpu
    typedef struct _NV_GPU_VIRTUALIZATION_INFO
    {
        NvU32 version; //!< Structure version

        NV_VIRTUALIZATION_MODE virtualizationMode; //!< one of NV_VIRTUALIZATION_MODE.
        NvU32 reserved;                            //!< reserved for future use. Should be set to ZERO.
    } NV_GPU_VIRTUALIZATION_INFO_V1;

    //! \ingroup gpu
    typedef NV_GPU_VIRTUALIZATION_INFO_V1 NV_GPU_VIRTUALIZATION_INFO;

//! \ingroup gpu
#define NV_GPU_VIRTUALIZATION_INFO_VER1 MAKE_NVAPI_VERSION(NV_GPU_VIRTUALIZATION_INFO_V1, 1)


//! \ingroup gpu
#define NV_GPU_VIRTUALIZATION_INFO_VER NV_GPU_VIRTUALIZATION_INFO_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_GetVirtualizationInfo
    //!
    //!   DESCRIPTION: This API returns virtualization information of the GPU
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 367
    //!
    //! \param [in,out] pVirtualizationInfo         Pointer to NV_GPU_VIRTUALIZATION_INFO structure.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!          specific meaning for this API, they are listed below.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetVirtualizationInfo(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_VIRTUALIZATION_INFO *pVirtualizationInfo);

    //! \ingroup gpu
    typedef struct _NV_LOGICAL_GPU_DATA_V1
    {
        NvU32 version;          //!< [in]  Structure version.
        void *pOSAdapterId;     //!< [out] Returns OS-AdapterId. User must send memory buffer of size atleast equal to the size of LUID structure before calling the NVAPI.
        NvU32 physicalGpuCount; //!< [out] Number of physical GPU handles associated with the specified logical GPU handle.

        NvPhysicalGpuHandle physicalGpuHandles[NVAPI_MAX_PHYSICAL_GPUS]; //!< [out] This array will be filled with physical GPU handles associated with the given logical GPU handle.
                                                                         //!< The array index refers to the Physical Gpu Index (Idx).
                                                                         //!< Idx value is the same as D3D11 MultiGPUDevice GPU index, D3D12 node index, OpenGL GL_NV_gpu_multicast GPU index.
                                                                         //!< When converted to a bit mask (1 << Idx), it matches:
                                                                         //!<    1. Vulkan deviceNodeMask in VkPhysicalDeviceIDProperties
                                                                         //!<    2. CUDA deviceNodeMask returned by cuDeviceGetLuid
        NvU32 reserved[8];                                               //!< Reserved for future use. Should be set to ZERO.
    } NV_LOGICAL_GPU_DATA_V1;

    //! \ingroup gpu
    typedef NV_LOGICAL_GPU_DATA_V1 NV_LOGICAL_GPU_DATA;
#define NV_LOGICAL_GPU_DATA_VER1 MAKE_NVAPI_VERSION(NV_LOGICAL_GPU_DATA_V1, 1)

#define NV_LOGICAL_GPU_DATA_VER NV_LOGICAL_GPU_DATA_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetLogicalGpuInfo
    //
    //!  This function is used to query Logical GPU information.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 421
    //!
    //! \param [in]    hLogicalGpu            logical GPU Handle.
    //! \param [inout] pLogicalGpuData        Pointer to NV_LOGICAL_GPU_DATA structure.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!          specific meaning for this API, they are listed below.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetLogicalGpuInfo(__in NvLogicalGpuHandle hLogicalGpu, __inout NV_LOGICAL_GPU_DATA *pLogicalGpuData);

//! \addtogroup gridlicense
//! @{

//! Maximum  number of supported Feature License
#define NV_LICENSE_MAX_COUNT 3


//! Signature length for GRID License
#define NV_LICENSE_SIGNATURE_SIZE (128)


//! Length for Grid License
#define NV_LICENSE_INFO_MAX_LENGTH (128)


    //! License string
    typedef char NvAPI_LicenseString[NV_LICENSE_INFO_MAX_LENGTH];

    //! Used in NV_LICENSE_FEATURE_DETAILS
    typedef enum _NV_LICENSE_FEATURE_TYPE
    {
        NV_LICENSE_FEATURE_UNKNOWN = 0,
        NV_LICENSE_FEATURE_VGPU = 1,
        NV_LICENSE_FEATURE_NVIDIA_RTX = 2,
        NV_LICENSE_FEATURE_QUADRO = NV_LICENSE_FEATURE_NVIDIA_RTX, //!< DEPRECATED name - do not use
        NV_LICENSE_FEATURE_GAMING = 3,
    } NV_LICENSE_FEATURE_TYPE;

    //! Used in NV_LICENSE_FEATURE_DETAILS
    //!
    //!< The 'status' variable holds any one of the following license expiry status codes :
    //!<   0  -  Expiry information not available
    //!<   1  -  Invalid expiry or error fetching expiry
    //!<   2  -  Valid expiry
    //!<   3  -  Expiry not applicable
    //!<   4  -  Permanent expiry
    typedef struct _NV_LICENSE_EXPIRY_DETAILS
    {
        NvU32 year;  //!< Year value of license expiry
        NvU16 month; //!< Month value of license expiry
        NvU16 day;   //!< Day value of license expiry
        NvU16 hour;  //!< Hour value of license expiry
        NvU16 min;   //!< Minutes value of license expiry
        NvU16 sec;   //!< Seconds value of license expiry

        NvU8 status; //!< License expiry status
    } NV_LICENSE_EXPIRY_DETAILS;

    //! Used in NV_LICENSABLE_FEATURES
    typedef struct _NV_LICENSE_FEATURE_DETAILS_V1
    {
        NvU32 version;                       //!< IN - Structure version.
        NvU32 isEnabled : 1;                 //!< The current state of the licensed feature, true=enabled, false=disabled.
        NvU32 reserved : 31;                 //!< Reserved
        NV_LICENSE_FEATURE_TYPE featureCode; //!< Feature code that corresponds to the licensable feature.
        NvAPI_LicenseString licenseInfo;     //!< Deprecated
    } NV_LICENSE_FEATURE_DETAILS_V1;

    typedef struct _NV_LICENSE_FEATURE_DETAILS_V2
    {
        NvU32 version;                       //!< Unused.
        NvU32 isEnabled : 1;                 //!< The current state of the licensed feature, true=enabled, false=disabled.
        NvU32 reserved : 31;                 //!< Reserved
        NV_LICENSE_FEATURE_TYPE featureCode; //!< Feature code that corresponds to the licensable feature.
        NvAPI_LicenseString licenseInfo;     //!< Deprecated
        NvAPI_LicenseString productName;     //!< Nvidia Grid licensable product name.
    } NV_LICENSE_FEATURE_DETAILS_V2;

    typedef struct _NV_LICENSE_FEATURE_DETAILS_V3
    {
        NvU32 version;                       //!< Unused.
        NvU32 isEnabled : 1;                 //!< The current state of license, true=licensed, false=unlicensed.
        NvU32 isFeatureEnabled : 1;          //!< The current state of feature, true=enabled, false=disabled.
        NvU32 reserved : 30;                 //!< Reserved
        NV_LICENSE_FEATURE_TYPE featureCode; //!< Feature code that corresponds to the licensable feature.
        NvAPI_LicenseString licenseInfo;     //!< Deprecated
        NvAPI_LicenseString productName;     //!< Nvidia Grid licensable product name.
    } NV_LICENSE_FEATURE_DETAILS_V3;

    typedef struct _NV_LICENSE_FEATURE_DETAILS_V4
    {
        NvU32 version;                           //!< Unused.
        NvU32 isEnabled : 1;                     //!< The current state of license, true=licensed, false=unlicensed.
        NvU32 isFeatureEnabled : 1;              //!< The current state of feature, true=enabled, false=disabled.
        NvU32 reserved : 30;                     //!< Reserved
        NV_LICENSE_FEATURE_TYPE featureCode;     //!< Feature code that corresponds to the licensable feature.
        NvAPI_LicenseString licenseInfo;         //!< Deprecated
        NvAPI_LicenseString productName;         //!< Nvidia Grid licensable product name.
        NV_LICENSE_EXPIRY_DETAILS licenseExpiry; //!< License expiry information.
    } NV_LICENSE_FEATURE_DETAILS_V4;

    typedef NV_LICENSE_FEATURE_DETAILS_V1 NV_LICENSE_FEATURE_DETAILS;

#define NV_LICENSE_FEATURE_DETAILS_VER1 MAKE_NVAPI_VERSION(NV_LICENSE_FEATURE_DETAILS_V1, 1)

#define NV_LICENSE_FEATURE_DETAILS_VER NV_LICENSE_FEATURE_DETAILS_VER1


    //! Licensable features
    typedef struct _NV_LICENSABLE_FEATURES_V1
    {
        NvU32 version;                                                      //!< IN - Structure version.
        NvU32 isLicenseSupported : 1;                                       //!< True if Software Licensing is supported.
        NvU32 reserved : 31;                                                //!< Reserved
        NvU32 licensableFeatureCount;                                       //!< The number of licensable features.
        NvU8 signature[NV_LICENSE_SIGNATURE_SIZE];                          //!< Dynamic signature required for Authentication of the components,
                                                                            //!< signature length limited to NV_LICENSE_SIGNATURE_SIZE
        NV_LICENSE_FEATURE_DETAILS_V1 licenseDetails[NV_LICENSE_MAX_COUNT]; //!< Array of licensable features
    } NV_LICENSABLE_FEATURES_V1;

    typedef struct _NV_LICENSABLE_FEATURES_V2
    {
        NvU32 version;                                                      //!< IN - Structure version.
        NvU32 isLicenseSupported : 1;                                       //!< True if Software Licensing is supported.
        NvU32 reserved : 31;                                                //!< Reserved
        NvU32 licensableFeatureCount;                                       //!< The number of licensable features.
        NvU8 signature[NV_LICENSE_SIGNATURE_SIZE];                          //!< Dynamic signature required for Authentication of the components,
                                                                            //!< signature length limited to NV_LICENSE_SIGNATURE_SIZE
        NV_LICENSE_FEATURE_DETAILS_V2 licenseDetails[NV_LICENSE_MAX_COUNT]; //!< Array of licensable features
    } NV_LICENSABLE_FEATURES_V2;

    typedef struct _NV_LICENSABLE_FEATURES_V3
    {
        NvU32 version;                                                      //!< IN - Structure version.
        NvU32 isLicenseSupported : 1;                                       //!< True if Software Licensing is supported.
        NvU32 reserved : 31;                                                //!< Reserved
        NvU32 licensableFeatureCount;                                       //!< The number of licensable features.
        NvU8 signature[NV_LICENSE_SIGNATURE_SIZE];                          //!< Dynamic signature required for Authentication of the components,
                                                                            //!< signature length limited to NV_LICENSE_SIGNATURE_SIZE
        NV_LICENSE_FEATURE_DETAILS_V3 licenseDetails[NV_LICENSE_MAX_COUNT]; //!< Array of licensable features
    } NV_LICENSABLE_FEATURES_V3;

    typedef struct _NV_LICENSABLE_FEATURES_V4
    {
        NvU32 version;                                                      //!< IN - Structure version.
        NvU32 isLicenseSupported : 1;                                       //!< True if Software Licensing is supported.
        NvU32 reserved : 31;                                                //!< Reserved
        NvU32 licensableFeatureCount;                                       //!< The number of licensable features.
        NvU8 signature[NV_LICENSE_SIGNATURE_SIZE];                          //!< Dynamic signature required for Authentication of the components,
                                                                            //!< signature length limited to NV_LICENSE_SIGNATURE_SIZE
        NV_LICENSE_FEATURE_DETAILS_V4 licenseDetails[NV_LICENSE_MAX_COUNT]; //!< Array of licensable features
    } NV_LICENSABLE_FEATURES_V4;

    typedef NV_LICENSABLE_FEATURES_V4 NV_LICENSABLE_FEATURES;

#define NV_LICENSABLE_FEATURES_VER1 MAKE_NVAPI_VERSION(NV_LICENSABLE_FEATURES_V1, 1)

#define NV_LICENSABLE_FEATURES_VER2 MAKE_NVAPI_VERSION(NV_LICENSABLE_FEATURES_V2, 2)

#define NV_LICENSABLE_FEATURES_VER3 MAKE_NVAPI_VERSION(NV_LICENSABLE_FEATURES_V3, 3)

#define NV_LICENSABLE_FEATURES_VER4 MAKE_NVAPI_VERSION(NV_LICENSABLE_FEATURES_V4, 4)

#define NV_LICENSABLE_FEATURES_VER NV_LICENSABLE_FEATURES_VER4


    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_GetLicensableFeatures
    //
    //!   DESCRIPTION:   This function call identifies whether licenses are supported on this system and if
    //!                  they are supported, returns the details of the features that can be licensed.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \param [in]  hPhysicalGpu                   GPU selection
    //! \param [in,out] pLicensableFeatures         Licensable features information.
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup gridlicense
    /////////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetLicensableFeatures(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_LICENSABLE_FEATURES *pLicensableFeatures);

    typedef struct _NV_GPU_VR_READY_V1
    {
        NvU32 version;       //!< Structure Version.
        NvU32 isVRReady : 1; //!< Is the requested GPU VR ready.
        NvU32 reserved : 31;
    } NV_GPU_VR_READY_V1;

#define NV_GPU_VR_READY_VER1 MAKE_NVAPI_VERSION(NV_GPU_VR_READY_V1, 1)

#define NV_GPU_VR_READY_VER NV_GPU_VR_READY_VER1

    typedef NV_GPU_VR_READY_V1 NV_GPU_VR_READY;

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetVRReadyData
    //
    //! DESCRIPTION: This API will return NVIDIA GPU VR Ready state.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 465
    //!
    //! \param [inout] pGpuVrReadyData - This structure will be filled with required information.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetVRReadyData(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_VR_READY *pGpuVrReadyData);

    //! Used in NvAPI_GPU_GetPerfDecreaseInfo.
    //! Bit masks for knowing the exact reason for performance decrease
    typedef enum _NVAPI_GPU_PERF_DECREASE
    {
        NV_GPU_PERF_DECREASE_NONE = 0,                               //!< No Slowdown detected
        NV_GPU_PERF_DECREASE_REASON_THERMAL_PROTECTION = 0x00000001, //!< Thermal slowdown/shutdown/POR thermal protection
        NV_GPU_PERF_DECREASE_REASON_POWER_CONTROL = 0x00000002,      //!< Power capping / pstate cap
        NV_GPU_PERF_DECREASE_REASON_AC_BATT = 0x00000004,            //!< AC->BATT event
        NV_GPU_PERF_DECREASE_REASON_API_TRIGGERED = 0x00000008,      //!< API triggered slowdown
        NV_GPU_PERF_DECREASE_REASON_INSUFFICIENT_POWER = 0x00000010, //!< Power connector missing
        NV_GPU_PERF_DECREASE_REASON_UNKNOWN = 0x80000000,            //!< Unknown reason
    } NVAPI_GPU_PERF_DECREASE;

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetPerfDecreaseInfo
    //
    //! DESCRIPTION:   This function retrieves - in NvU32 variable - reasons for the current performance decrease.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! \param [in]      hPhysicalGPU    (IN)    - GPU for which performance decrease is to be evaluated.
    //! \param [out]  pPerfDecrInfo    (OUT)    - Pointer to a NvU32 variable containing performance decrease info
    //!
    //! \return      This API can return any of the error codes enumerated in #NvAPI_Status.
    //!
    //! \ingroup gpuPerf
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetPerfDecreaseInfo(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NvU32 *pPerfDecrInfo);

    //! \ingroup gpupstate
    //! Used in NvAPI_GPU_GetPstatesInfoEx()
    typedef struct
    {
        NvU32 version;
        NvU32 flags;      //!< - bit 0 indicates if perfmon is enabled or not
                          //!< - bit 1 indicates if dynamic Pstate is capable or not
                          //!< - bit 2 indicates if dynamic Pstate is enable or not
                          //!< - all other bits must be set to 0
        NvU32 numPstates; //!< The number of available p-states
        NvU32 numClocks;  //!< The number of clock domains supported by each P-State
        struct
        {
            NV_GPU_PERF_PSTATE_ID pstateId; //!< ID of the p-state.
            NvU32 flags;                    //!< - bit 0 indicates if the PCIE limit is GEN1 or GEN2
                                            //!< - bit 1 indicates if the Pstate is overclocked or not
                                            //!< - bit 2 indicates if the Pstate is overclockable or not
                                            //!< - all other bits must be set to 0
            struct
            {
                NV_GPU_PUBLIC_CLOCK_ID domainId; //!< ID of the clock domain
                NvU32 flags;                     //!< Reserved. Must be set to 0
                NvU32 freq;                      //!< Clock frequency in kHz

            } clocks[NVAPI_MAX_GPU_PERF_CLOCKS];
        } pstates[NVAPI_MAX_GPU_PERF_PSTATES];

    } NV_GPU_PERF_PSTATES_INFO_V1;

    //! \ingroup gpupstate
    typedef struct
    {
        NvU32 version;
        NvU32 flags;      //!< - bit 0 indicates if perfmon is enabled or not
                          //!< - bit 1 indicates if dynamic Pstate is capable or not
                          //!< - bit 2 indicates if dynamic Pstate is enable or not
                          //!< - all other bits must be set to 0
        NvU32 numPstates; //!< The number of available p-states
        NvU32 numClocks;  //!< The number of clock domains supported by each P-State
        NvU32 numVoltages;
        struct
        {
            NV_GPU_PERF_PSTATE_ID pstateId; //!< ID of the p-state.
            NvU32 flags;                    //!< - bit 0 indicates if the PCIE limit is GEN1 or GEN2
                                            //!< - bit 1 indicates if the Pstate is overclocked or not
                                            //!< - bit 2 indicates if the Pstate is overclockable or not
                                            //!< - all other bits must be set to 0
            struct
            {
                NV_GPU_PUBLIC_CLOCK_ID domainId;
                NvU32 flags; //!< bit 0 indicates if this clock is overclockable
                             //!< all other bits must be set to 0
                NvU32 freq;

            } clocks[NVAPI_MAX_GPU_PERF_CLOCKS];
            struct
            {
                NV_GPU_PERF_VOLTAGE_INFO_DOMAIN_ID domainId; //!< ID of the voltage domain, containing flags and mvolt info
                NvU32 flags;                                 //!< Reserved for future use. Must be set to 0
                NvU32 mvolt;                                 //!< Voltage in mV

            } voltages[NVAPI_MAX_GPU_PERF_VOLTAGES];

        } pstates[NVAPI_MAX_GPU_PERF_PSTATES]; //!< Valid index range is 0 to numVoltages-1

    } NV_GPU_PERF_PSTATES_INFO_V2;

    //! \ingroup gpupstate
    typedef NV_GPU_PERF_PSTATES_INFO_V2 NV_GPU_PERF_PSTATES_INFO;

//! \ingroup gpupstate
//! @{

//! Macro for constructing the version field of NV_GPU_PERF_PSTATES_INFO_V1
#define NV_GPU_PERF_PSTATES_INFO_VER1 MAKE_NVAPI_VERSION(NV_GPU_PERF_PSTATES_INFO_V1, 1)


//! Macro for constructing the version field of NV_GPU_PERF_PSTATES_INFO_V2
#define NV_GPU_PERF_PSTATES_INFO_VER2 MAKE_NVAPI_VERSION(NV_GPU_PERF_PSTATES_INFO_V2, 2)


//! Macro for constructing the version field of NV_GPU_PERF_PSTATES_INFO_V2
#define NV_GPU_PERF_PSTATES_INFO_VER3 MAKE_NVAPI_VERSION(NV_GPU_PERF_PSTATES_INFO_V2, 3)


//! Macro for constructing the version field of NV_GPU_PERF_PSTATES_INFO
#define NV_GPU_PERF_PSTATES_INFO_VER NV_GPU_PERF_PSTATES_INFO_VER3


    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_GetPstatesInfoEx
    //
    //! DESCRIPTION:     This API retrieves all performance states (P-States) information. This is the same as
    //!                  NvAPI_GPU_GetPstatesInfo(), but supports an input flag for various options.
    //!
    //!                  P-States are GPU active/executing performance capability and power consumption states.
    //!
    //!                  P-States ranges from P0 to P15, with P0 being the highest performance/power state, and
    //!                  P15 being the lowest performance/power state. Each P-State, if available, maps to a
    //!                  performance level. Not all P-States are available on a given system. The definitions
    //!                  of each P-State are currently as follows: \n
    //!                  - P0/P1 - Maximum 3D performance
    //!                  - P2/P3 - Balanced 3D performance-power
    //!                  - P8 - Basic HD video playback
    //!                  - P10 - DVD playback
    //!                  - P12 - Minimum idle power consumption
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 304. Instead, use NvAPI_GPU_GetPstates20.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     hPhysicalGPU       GPU selection.
    //! \param [out]    pPerfPstatesInfo   P-States information retrieved, as detailed below: \n
    //!                  - flags is reserved for future use.
    //!                  - numPstates is the number of available P-States
    //!                  - numClocks is the number of clock domains supported by each P-State
    //!                  - pstates has valid index range from 0 to numPstates - 1
    //!                  - pstates[i].pstateId is the ID of the P-State,
    //!                      containing the following info:
    //!                    - pstates[i].flags containing the following info:
    //!                        - bit 0 indicates if the PCIE limit is GEN1 or GEN2
    //!                        - bit 1 indicates if the Pstate is overclocked or not
    //!                        - bit 2 indicates if the Pstate is overclockable or not
    //!                    - pstates[i].clocks has valid index range from 0 to numClocks -1
    //!                    - pstates[i].clocks[j].domainId is the public ID of the clock domain,
    //!                        containing the following info:
    //!                      - pstates[i].clocks[j].flags containing the following info:
    //!                          bit 0 indicates if the clock domain is overclockable or not
    //!                      - pstates[i].clocks[j].freq is the clock frequency in kHz
    //!                    - pstates[i].voltages has a valid index range from 0 to numVoltages - 1
    //!                    - pstates[i].voltages[j].domainId is the ID of the voltage domain,
    //!                        containing the following info:
    //!                      - pstates[i].voltages[j].flags is reserved for future use.
    //!                      - pstates[i].voltages[j].mvolt is the voltage in mV
    //!                  inputFlags(IN)   - This can be used to select various options:
    //!                    - if bit 0 is set, pPerfPstatesInfo would contain the default settings
    //!                        instead of the current, possibily overclocked settings.
    //!                    - if bit 1 is set, pPerfPstatesInfo would contain the maximum clock
    //!                        frequencies instead of the nominal frequencies.
    //!                    - if bit 2 is set, pPerfPstatesInfo would contain the minimum clock
    //!                        frequencies instead of the nominal frequencies.
    //!                    - all other bits must be set to 0.
    //!
    //! \retval ::NVAPI_OK                            Completed request
    //! \retval ::NVAPI_ERROR                         Miscellaneous error occurred
    //! \retval ::NVAPI_HANDLE_INVALIDATED            Handle passed has been invalidated (see user guide)
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE  Handle passed is not a physical GPU handle
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION   The version of the NV_GPU_PERF_PSTATES struct is not supported
    //!
    //! \ingroup gpupstate
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 304. Instead, use NvAPI_GPU_GetPstates20.")
        NVAPI_INTERFACE NvAPI_GPU_GetPstatesInfoEx(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_PERF_PSTATES_INFO *pPerfPstatesInfo, NvU32 inputFlags);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_GetPstates20
    //
    //! DESCRIPTION:    This API retrieves all performance states (P-States) 2.0 information.
    //!
    //!                 P-States are GPU active/executing performance capability states.
    //!                 They range from P0 to P15, with P0 being the highest performance state,
    //!                 and P15 being the lowest performance state. Each P-State, if available,
    //!                 maps to a performance level. Not all P-States are available on a given system.
    //!                 The definition of each P-States are currently as follow:
    //!                 - P0/P1 - Maximum 3D performance
    //!                 - P2/P3 - Balanced 3D performance-power
    //!                 - P8 - Basic HD video playback
    //!                 - P10 - DVD playback
    //!                 - P12 - Minimum idle power consumption
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 295
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   hPhysicalGPU  GPU selection
    //! \param [out]  pPstatesInfo  P-States information retrieved, as documented in declaration above
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    //!
    //! \ingroup gpupstate
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetPstates20(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_PERF_PSTATES20_INFO *pPstatesInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_GetCurrentPstate
    //
    //! DESCRIPTION:     This function retrieves the current performance state (P-State).
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 165
    //!
    //! TCC_SUPPORTED
    //!
    //! \param [in]      hPhysicalGPU     GPU selection
    //! \param [out]     pCurrentPstate   The ID of the current P-State of the GPU - see \ref NV_GPU_PERF_PSTATES.
    //!
    //! \retval    NVAPI_OK                             Completed request
    //! \retval    NVAPI_ERROR                          Miscellaneous error occurred.
    //! \retval    NVAPI_HANDLE_INVALIDATED             Handle passed has been invalidated (see user guide).
    //! \retval    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE   Handle passed is not a physical GPU handle.
    //! \retval    NVAPI_NOT_SUPPORTED                  P-States is not supported on this setup.
    //!
    //! \ingroup   gpupstate
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetCurrentPstate(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_PERF_PSTATE_ID *pCurrentPstate);

//! \ingroup gpupstate
#define NVAPI_MAX_GPU_UTILIZATIONS 8


    //! \ingroup gpupstate
    //! Used in NvAPI_GPU_GetDynamicPstatesInfoEx().
    typedef struct
    {
        NvU32 version; //!< Structure version
        NvU32 flags;   //!< bit 0 indicates if the dynamic Pstate is enabled or not
        struct
        {
            NvU32 bIsPresent : 1; //!< Set if this utilization domain is present on this GPU
            NvU32 percentage;     //!< Percentage of time where the domain is considered busy in the last 1 second interval
        } utilization[NVAPI_MAX_GPU_UTILIZATIONS];
    } NV_GPU_DYNAMIC_PSTATES_INFO_EX;

//! \ingroup gpupstate
//! Macro for constructing the version field of NV_GPU_DYNAMIC_PSTATES_INFO_EX
#define NV_GPU_DYNAMIC_PSTATES_INFO_EX_VER MAKE_NVAPI_VERSION(NV_GPU_DYNAMIC_PSTATES_INFO_EX, 1)


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetDynamicPstatesInfoEx
    //
    //! DESCRIPTION:   This API retrieves the NV_GPU_DYNAMIC_PSTATES_INFO_EX structure for the specified physical GPU.
    //!                Each domain's info is indexed in the array.  For example:
    //!                - pDynamicPstatesInfo->utilization[NVAPI_GPU_UTILIZATION_DOMAIN_GPU] holds the info for the GPU domain. \p
    //!                There are currently 4 domains for which GPU utilization and dynamic P-State thresholds can be retrieved:
    //!                   graphic engine (GPU), frame buffer (FB), video engine (VID), and bus interface (BUS).
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //!
    //! TCC_SUPPORTED
    //! \since Release: 185
    //!
    //! \retval ::NVAPI_OK
    //! \retval ::NVAPI_ERROR
    //! \retval ::NVAPI_INVALID_ARGUMENT  pDynamicPstatesInfo is NULL
    //! \retval ::NVAPI_HANDLE_INVALIDATED
    //! \retval ::NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION The version of the INFO struct is not supported
    //!
    //! \ingroup gpupstate
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetDynamicPstatesInfoEx(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_DYNAMIC_PSTATES_INFO_EX *pDynamicPstatesInfoEx);
///////////////////////////////////////////////////////////////////////////////////
//  Thermal API
//  Provides ability to get temperature levels from the various thermal sensors associated with the GPU

//! \ingroup gputhermal
#define NVAPI_MAX_THERMAL_SENSORS_PER_GPU 3


    //! \ingroup gputhermal
    //! Used in NV_GPU_THERMAL_SETTINGS
    typedef enum
    {
        NVAPI_THERMAL_TARGET_NONE = 0,
        NVAPI_THERMAL_TARGET_GPU = 1,          //!< GPU core temperature requires NvPhysicalGpuHandle
        NVAPI_THERMAL_TARGET_MEMORY = 2,       //!< GPU memory temperature requires NvPhysicalGpuHandle
        NVAPI_THERMAL_TARGET_POWER_SUPPLY = 4, //!< GPU power supply temperature requires NvPhysicalGpuHandle
        NVAPI_THERMAL_TARGET_BOARD = 8,        //!< GPU board ambient temperature requires NvPhysicalGpuHandle
        NVAPI_THERMAL_TARGET_VCD_BOARD = 9,    //!< Visual Computing Device Board temperature requires NvVisualComputingDeviceHandle
        NVAPI_THERMAL_TARGET_VCD_INLET = 10,   //!< Visual Computing Device Inlet temperature requires NvVisualComputingDeviceHandle
        NVAPI_THERMAL_TARGET_VCD_OUTLET = 11,  //!< Visual Computing Device Outlet temperature requires NvVisualComputingDeviceHandle

        NVAPI_THERMAL_TARGET_ALL = 15,
        NVAPI_THERMAL_TARGET_UNKNOWN = -1,
    } NV_THERMAL_TARGET;

    //! \ingroup gputhermal
    //! Used in NV_GPU_THERMAL_SETTINGS
    typedef enum
    {
        NVAPI_THERMAL_CONTROLLER_NONE = 0,
        NVAPI_THERMAL_CONTROLLER_GPU_INTERNAL,
        NVAPI_THERMAL_CONTROLLER_ADM1032,
        NVAPI_THERMAL_CONTROLLER_MAX6649,
        NVAPI_THERMAL_CONTROLLER_MAX1617,
        NVAPI_THERMAL_CONTROLLER_LM99,
        NVAPI_THERMAL_CONTROLLER_LM89,
        NVAPI_THERMAL_CONTROLLER_LM64,
        NVAPI_THERMAL_CONTROLLER_ADT7473,
        NVAPI_THERMAL_CONTROLLER_SBMAX6649,
        NVAPI_THERMAL_CONTROLLER_VBIOSEVT,
        NVAPI_THERMAL_CONTROLLER_OS,
        NVAPI_THERMAL_CONTROLLER_UNKNOWN = -1,
    } NV_THERMAL_CONTROLLER;

    //! \ingroup gputhermal
    //! Used in NvAPI_GPU_GetThermalSettings()
    typedef struct
    {
        NvU32 version; //!< structure version
        NvU32 count;   //!< number of associated thermal sensors
        struct
        {
            NV_THERMAL_CONTROLLER controller; //!< internal, ADM1032, MAX6649...
            NvU32 defaultMinTemp;             //!< The min default temperature value of the thermal sensor in degree Celsius
            NvU32 defaultMaxTemp;             //!< The max default temperature value of the thermal sensor in degree Celsius
            NvU32 currentTemp;                //!< The current temperature value of the thermal sensor in degree Celsius
            NV_THERMAL_TARGET target;         //!< Thermal sensor targeted @ GPU, memory, chipset, powersupply, Visual Computing Device, etc.
        } sensor[NVAPI_MAX_THERMAL_SENSORS_PER_GPU];

    } NV_GPU_THERMAL_SETTINGS_V1;

    //! \ingroup gputhermal
    typedef struct
    {
        NvU32 version; //!< structure version
        NvU32 count;   //!< number of associated thermal sensors
        struct
        {
            NV_THERMAL_CONTROLLER controller; //!< internal, ADM1032, MAX6649...
            NvS32 defaultMinTemp;             //!< Minimum default temperature value of the thermal sensor in degree Celsius
            NvS32 defaultMaxTemp;             //!< Maximum default temperature value of the thermal sensor in degree Celsius
            NvS32 currentTemp;                //!< Current temperature value of the thermal sensor in degree Celsius
            NV_THERMAL_TARGET target;         //!< Thermal sensor targeted - GPU, memory, chipset, powersupply, Visual Computing Device, etc
        } sensor[NVAPI_MAX_THERMAL_SENSORS_PER_GPU];

    } NV_GPU_THERMAL_SETTINGS_V2;

    //! \ingroup gputhermal
    typedef NV_GPU_THERMAL_SETTINGS_V2 NV_GPU_THERMAL_SETTINGS;

//! \ingroup gputhermal
//! @{

//! Macro for constructing the version field of NV_GPU_THERMAL_SETTINGS_V1
#define NV_GPU_THERMAL_SETTINGS_VER_1 MAKE_NVAPI_VERSION(NV_GPU_THERMAL_SETTINGS_V1, 1)


//! Macro for constructing the version field of NV_GPU_THERMAL_SETTINGS_V2
#define NV_GPU_THERMAL_SETTINGS_VER_2 MAKE_NVAPI_VERSION(NV_GPU_THERMAL_SETTINGS_V2, 2)


//! Macro for constructing the version field of NV_GPU_THERMAL_SETTINGS
#define NV_GPU_THERMAL_SETTINGS_VER NV_GPU_THERMAL_SETTINGS_VER_2

    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GPU_GetThermalSettings
    //
    //!  This function retrieves the thermal information of all thermal sensors or specific thermal sensor associated with the selected GPU.
    //!  Thermal sensors are indexed 0 to NVAPI_MAX_THERMAL_SENSORS_PER_GPU-1.
    //!
    //!  - To retrieve specific thermal sensor info, set the sensorIndex to the required thermal sensor index.
    //!  - To retrieve info for all sensors, set sensorIndex to NVAPI_THERMAL_TARGET_ALL.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 85
    //!
    //! \param [in]   hPhysicalGPU      GPU selection.
    //! \param [in]   sensorIndex       Explicit thermal sensor index selection.
    //! \param [out]  pThermalSettings  Array of thermal settings.
    //!
    //! \retval   NVAPI_OK                           Completed request
    //! \retval   NVAPI_ERROR                        Miscellaneous error occurred.
    //! \retval   NVAPI_INVALID_ARGUMENT             pThermalInfo is NULL.
    //! \retval   NVAPI_HANDLE_INVALIDATED           Handle passed has been invalidated (see user guide).
    //! \retval   NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE Handle passed is not a physical GPU handle.
    //! \retval   NVAPI_INCOMPATIBLE_STRUCT_VERSION  The version of the INFO struct is not supported.
    //! \ingroup gputhermal
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetThermalSettings(NvPhysicalGpuHandle hPhysicalGpu, NvU32 sensorIndex, NV_GPU_THERMAL_SETTINGS *pThermalSettings);

    //! \ingroup gpuclock
    //! Used in NvAPI_GPU_GetAllClockFrequencies()
    typedef struct
    {
        NvU32 version;  //!< Structure version
        NvU32 reserved; //!< These bits are reserved for future use.
        struct
        {
            NvU32 bIsPresent : 1; //!< Set if this domain is present on this GPU
            NvU32 reserved : 31;  //!< These bits are reserved for future use.
            NvU32 frequency;      //!< Clock frequency (kHz)
        } domain[NVAPI_MAX_GPU_PUBLIC_CLOCKS];
    } NV_GPU_CLOCK_FREQUENCIES_V1;

#ifndef NV_GPU_MAX_CLOCK_FREQUENCIES
#define NV_GPU_MAX_CLOCK_FREQUENCIES 3

#endif

    //! \ingroup gpuclock
    //! Used in NvAPI_GPU_GetAllClockFrequencies()
    typedef enum
    {
        NV_GPU_CLOCK_FREQUENCIES_CURRENT_FREQ = 0,
        NV_GPU_CLOCK_FREQUENCIES_BASE_CLOCK = 1,
        NV_GPU_CLOCK_FREQUENCIES_BOOST_CLOCK = 2,
        NV_GPU_CLOCK_FREQUENCIES_CLOCK_TYPE_NUM = NV_GPU_MAX_CLOCK_FREQUENCIES
    } NV_GPU_CLOCK_FREQUENCIES_CLOCK_TYPE;

    //! \ingroup gpuclock
    //! Used in NvAPI_GPU_GetAllClockFrequencies()
    typedef struct
    {
        NvU32 version;       //!< Structure version
        NvU32 ClockType : 4; //!< One of NV_GPU_CLOCK_FREQUENCIES_CLOCK_TYPE. Used to specify the type of clock to be returned.
        NvU32 reserved : 20; //!< These bits are reserved for future use. Must be set to 0.
        NvU32 reserved1 : 8; //!< These bits are reserved.
        struct
        {
            NvU32 bIsPresent : 1; //!< Set if this domain is present on this GPU
            NvU32 reserved : 31;  //!< These bits are reserved for future use.
            NvU32 frequency;      //!< Clock frequency (kHz)
        } domain[NVAPI_MAX_GPU_PUBLIC_CLOCKS];
    } NV_GPU_CLOCK_FREQUENCIES_V2;

    //! \ingroup gpuclock
    //! Used in NvAPI_GPU_GetAllClockFrequencies()
    typedef NV_GPU_CLOCK_FREQUENCIES_V2 NV_GPU_CLOCK_FREQUENCIES;

//! \addtogroup gpuclock
//! @{
#define NV_GPU_CLOCK_FREQUENCIES_VER_1 MAKE_NVAPI_VERSION(NV_GPU_CLOCK_FREQUENCIES_V1, 1)

#define NV_GPU_CLOCK_FREQUENCIES_VER_2 MAKE_NVAPI_VERSION(NV_GPU_CLOCK_FREQUENCIES_V2, 2)

#define NV_GPU_CLOCK_FREQUENCIES_VER_3 MAKE_NVAPI_VERSION(NV_GPU_CLOCK_FREQUENCIES_V2, 3)

#define NV_GPU_CLOCK_FREQUENCIES_VER NV_GPU_CLOCK_FREQUENCIES_VER_3

    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_GetAllClockFrequencies
    //
    //!   This function retrieves the NV_GPU_CLOCK_FREQUENCIES structure for the specified physical GPU.
    //!
    //!   For each clock domain:
    //!      - bIsPresent is set for each domain that is present on the GPU
    //!      - frequency is the domain's clock freq in kHz
    //!
    //!   Each domain's info is indexed in the array.  For example:
    //!   clkFreqs.domain[NVAPI_GPU_PUBLIC_CLOCK_MEMORY] holds the info for the MEMORY domain.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 295
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    //! \retval  NVAPI_INVALID_ARGUMENT     pClkFreqs is NULL.
    //! \ingroup gpuclock
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_GetAllClockFrequencies(__in NvPhysicalGpuHandle hPhysicalGPU, __inout NV_GPU_CLOCK_FREQUENCIES *pClkFreqs);

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_QueryIlluminationSupport
    //!
    //! \fn NvAPI_GPU_QueryIlluminationSupport(__inout  NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM *pIlluminationSupportInfo)
    //! DESCRIPTION:   This function reports if the specified illumination attribute is supported.
    //!
    //! \note Only a single GPU can manage an given attribute on a given HW element,
    //!       regardless of how many are attatched. I.E. only one GPU will be used to control
    //!       the brightness of the LED on an SLI bridge, regardless of how many are physicaly attached.
    //!       You should enumerate thru the GPUs with this call to determine which GPU is managing the attribute.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 300.05
    //!
    //! \param [in]  hPhysicalGpu        Physical GPU handle
    //! \param       Attribute           An enumeration value specifying the Illumination attribute to be querried
    //! \param [out] pSupported          A boolean indicating if the attribute is supported.
    //!
    //! \return See \ref nvapistatus for the list of possible return values.
    //
    //////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    typedef enum _NV_GPU_ILLUMINATION_ATTRIB
    {
        NV_GPU_IA_LOGO_BRIGHTNESS = 0,
        NV_GPU_IA_SLI_BRIGHTNESS = 1,
    } NV_GPU_ILLUMINATION_ATTRIB;

    //! \ingroup gpu
    typedef struct _NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM_V1
    {

        // IN
        NvU32 version;                        //!< Version of this structure
        NvPhysicalGpuHandle hPhysicalGpu;     //!< The handle of the GPU that you are checking for the specified attribute.
                                              //!< note that this is the GPU that is managing the attribute.
                                              //!< Only a single GPU can manage an given attribute on a given HW element,
                                              //!< regardless of how many are attatched.
                                              //!< I.E. only one GPU will be used to control the brightness of the LED on an SLI bridge,
                                              //!< regardless of how many are physicaly attached.
                                              //!< You enumerate thru the GPUs with this call to determine which GPU is managing the attribute.
        NV_GPU_ILLUMINATION_ATTRIB Attribute; //!< An enumeration value specifying the Illumination attribute to be querried.
                                              //!<     refer to enum \ref NV_GPU_ILLUMINATION_ATTRIB.

        // OUT
        NvU32 bSupported; //!< A boolean indicating if the attribute is supported.

    } NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM_V1;

    //! \ingroup gpu
    typedef NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM_V1 NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM;
//! \ingroup gpu
#define NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM_VER_1 MAKE_NVAPI_VERSION(NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM_V1, 1)

//! \ingroup gpu
#define NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM_VER NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM_VER_1


    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_QueryIlluminationSupport(__inout NV_GPU_QUERY_ILLUMINATION_SUPPORT_PARM *pIlluminationSupportInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_GetIllumination
    //!
    //! \fn NvAPI_GPU_GetIllumination(NV_GPU_GET_ILLUMINATION_PARM *pIlluminationInfo)
    //! DESCRIPTION:   This function reports value of the specified illumination attribute.
    //!
    //! \note Only a single GPU can manage an given attribute on a given HW element,
    //!       regardless of how many are attatched. I.E. only one GPU will be used to control
    //!       the brightness of the LED on an SLI bridge, regardless of how many are physicaly attached.
    //!       You should enumerate thru the GPUs with the \ref NvAPI_GPU_QueryIlluminationSupport call to
    //!       determine which GPU is managing the attribute.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 300.05
    //!
    //! \param [in]  hPhysicalGpu        Physical GPU handle
    //! \param       Attribute           An enumeration value specifying the Illumination attribute to be querried
    //! \param [out] Value               A DWORD containing the current value for the specified attribute.
    //!                                  This is specified as a percentage of the full range of the attribute
    //!                                  (0-100; 0 = off, 100 = full brightness)
    //!
    //! \return See \ref nvapistatus for the list of possible return values. Return values of special interest are:
    //!             NVAPI_INVALID_ARGUMENT The specified attibute is not known to the driver.
    //!             NVAPI_NOT_SUPPORTED:   The specified attribute is not supported on the specified GPU
    //
    //////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    typedef struct _NV_GPU_GET_ILLUMINATION_PARM_V1
    {

        // IN
        NvU32 version;                        //!< Version of this structure
        NvPhysicalGpuHandle hPhysicalGpu;     //!< The handle of the GPU that you are checking for the specified attribute.
                                              //!< Note that this is the GPU that is managing the attribute.
                                              //!< Only a single GPU can manage an given attribute on a given HW element,
                                              //!< regardless of how many are attatched.
                                              //!< I.E. only one GPU will be used to control the brightness of the LED on an SLI bridge,
                                              //!< regardless of how many are physicaly attached.
                                              //!< You enumerate thru the GPUs with this call to determine which GPU is managing the attribute.
        NV_GPU_ILLUMINATION_ATTRIB Attribute; //!< An enumeration value specifying the Illumination attribute to be querried.
                                              //!< refer to enum \ref NV_GPU_ILLUMINATION_ATTRIB.

        // OUT
        NvU32 Value; //!< A DWORD that will contain the current value of the specified attribute.
                     //! This is specified as a percentage of the full range of the attribute
                     //! (0-100; 0 = off, 100 = full brightness)

    } NV_GPU_GET_ILLUMINATION_PARM_V1;

    //! \ingroup gpu
    typedef NV_GPU_GET_ILLUMINATION_PARM_V1 NV_GPU_GET_ILLUMINATION_PARM;
//! \ingroup gpu
#define NV_GPU_GET_ILLUMINATION_PARM_VER_1 MAKE_NVAPI_VERSION(NV_GPU_GET_ILLUMINATION_PARM_V1, 1)

//! \ingroup gpu
#define NV_GPU_GET_ILLUMINATION_PARM_VER NV_GPU_GET_ILLUMINATION_PARM_VER_1


    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_GetIllumination(NV_GPU_GET_ILLUMINATION_PARM *pIlluminationInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_SetIllumination
    //!
    //! \fn NvAPI_GPU_SetIllumination(NV_GPU_SET_ILLUMINATION_PARM *pIlluminationInfo)
    //! DESCRIPTION:   This function sets the value of the specified illumination attribute.
    //!
    //! \note Only a single GPU can manage an given attribute on a given HW element,
    //!       regardless of how many are attatched. I.E. only one GPU will be used to control
    //!       the brightness of the LED on an SLI bridge, regardless of how many are physicaly attached.
    //!       You should enumerate thru the GPUs with the \ref NvAPI_GPU_QueryIlluminationSupport call to
    //!       determine which GPU is managing the attribute.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 300.05
    //!
    //! \param [in]  hPhysicalGpu        Physical GPU handle
    //! \param       Attribute           An enumeration value specifying the Illumination attribute to be set
    //! \param       Value               The new value for the specified attribute.
    //!                                  This should be specified as a percentage of the full range of the attribute
    //!                                  (0-100; 0 = off, 100 = full brightness)
    //!                                  If a value is specified outside this range, NVAPI_INVALID_ARGUMENT will be returned.
    //!
    //! \return See \ref nvapistatus for the list of possible return values. Return values of special interest are:
    //!             NVAPI_INVALID_ARGUMENT  The specified attibute is not known to the driver, or the specified value is out of range.
    //!             NVAPI_NOT_SUPPORTED     The specified attribute is not supported on the specified GPU.
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup gpu
    typedef struct _NV_GPU_SET_ILLUMINATION_PARM_V1
    {

        // IN
        NvU32 version;                        //!< Version of this structure
        NvPhysicalGpuHandle hPhysicalGpu;     //!< The handle of the GPU that you are checking for the specified attribute.
                                              //!< Note that this is the GPU that is managing the attribute.
                                              //!< Only a single GPU can manage an given attribute on a given HW element,
                                              //!< regardless of how many are attatched.
                                              //!< I.E. only one GPU will be used to control the brightness of the LED on an SLI bridge,
                                              //!< regardless of how many are physicaly attached.
                                              //!< You enumerate thru the GPUs with this call to determine which GPU is managing the attribute.
        NV_GPU_ILLUMINATION_ATTRIB Attribute; //!< An enumeration value specifying the Illumination attribute to be querried.
                                              //!< refer to enum \ref NV_GPU_ILLUMINATION_ATTRIB.
        NvU32 Value;                          //!< A DWORD containing the new value for the specified attribute.
                                              //!< This should be specified as a percentage of the full range of the attribute
                                              //!< (0-100; 0 = off, 100 = full brightness)
                                              //!< If a value is specified outside this range, NVAPI_INVALID_ARGUMENT will be returned.

        // OUT

    } NV_GPU_SET_ILLUMINATION_PARM_V1;

    //! \ingroup gpu
    typedef NV_GPU_SET_ILLUMINATION_PARM_V1 NV_GPU_SET_ILLUMINATION_PARM;
//! \ingroup gpu
#define NV_GPU_SET_ILLUMINATION_PARM_VER_1 MAKE_NVAPI_VERSION(NV_GPU_SET_ILLUMINATION_PARM_V1, 1)

//! \ingroup gpu
#define NV_GPU_SET_ILLUMINATION_PARM_VER NV_GPU_SET_ILLUMINATION_PARM_VER_1


    //! \ingroup gpu
    NVAPI_INTERFACE NvAPI_GPU_SetIllumination(NV_GPU_SET_ILLUMINATION_PARM *pIlluminationInfo);

    /*!
     * Enumeration of control modes that can be applied to Illumination Zones.
     */
    typedef enum
    {
        NV_GPU_CLIENT_ILLUM_CTRL_MODE_MANUAL_RGB = 0,       // deprecated
        NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_RGB, // deprecated

        NV_GPU_CLIENT_ILLUM_CTRL_MODE_MANUAL = 0,
        NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR,

        // Strictly add new control modes above this.
        NV_GPU_CLIENT_ILLUM_CTRL_MODE_INVALID = 0xFF,
    } NV_GPU_CLIENT_ILLUM_CTRL_MODE;

    /*!
     * Enumeration of locations where an Illumination Zone might be present.
     * Encoding used -
     *   1:0 - Number specifier (0)
     *   4:2 - Location (TOP)
     *   7:5 - Type (GPU/SLI)
     */
    typedef enum
    {
        NV_GPU_CLIENT_ILLUM_ZONE_LOCATION_GPU_TOP_0 = 0x00,
        NV_GPU_CLIENT_ILLUM_ZONE_LOCATION_GPU_FRONT_0 = 0x08,
        NV_GPU_CLIENT_ILLUM_ZONE_LOCATION_GPU_BACK_0 = 0x0C,
        NV_GPU_CLIENT_ILLUM_ZONE_LOCATION_SLI_TOP_0 = 0x20,
        NV_GPU_CLIENT_ILLUM_ZONE_LOCATION_INVALID = 0xFFFFFFFF,
    } NV_GPU_CLIENT_ILLUM_ZONE_LOCATION;

    /*!
     * Enumeration of ILLUM_DEVICEs.
     */
    typedef enum
    {
        NV_GPU_CLIENT_ILLUM_DEVICE_TYPE_INVALID = 0,
        NV_GPU_CLIENT_ILLUM_DEVICE_TYPE_MCUV10,
        NV_GPU_CLIENT_ILLUM_DEVICE_TYPE_GPIO_PWM_RGBW_V10,
        NV_GPU_CLIENT_ILLUM_DEVICE_TYPE_GPIO_PWM_SINGLE_COLOR_V10,
    } NV_GPU_CLIENT_ILLUM_DEVICE_TYPE;

    /*!
     * Enumeration of ILLUM_ZONEs.
     */
    typedef enum
    {
        NV_GPU_CLIENT_ILLUM_ZONE_TYPE_INVALID = 0,
        NV_GPU_CLIENT_ILLUM_ZONE_TYPE_RGB,
        NV_GPU_CLIENT_ILLUM_ZONE_TYPE_COLOR_FIXED,
        NV_GPU_CLIENT_ILLUM_ZONE_TYPE_RGBW,
        NV_GPU_CLIENT_ILLUM_ZONE_TYPE_SINGLE_COLOR,
    } NV_GPU_CLIENT_ILLUM_ZONE_TYPE;

/*!
 * Number of color points for the piecewise linear control mode.
 */
#define NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_COLOR_ENDPOINTS 2


    /*!
     * Enumeration of Cycle types for piecewise linear control mode.
     */
    typedef enum
    {
        NV_GPU_CLIENT_ILLUM_PIECEWISE_LINEAR_CYCLE_HALF_HALT = 0,
        NV_GPU_CLIENT_ILLUM_PIECEWISE_LINEAR_CYCLE_FULL_HALT,
        NV_GPU_CLIENT_ILLUM_PIECEWISE_LINEAR_CYCLE_FULL_REPEAT,
        NV_GPU_CLIENT_ILLUM_PIECEWISE_LINEAR_CYCLE_INVALID = 0xFF,
    } NV_GPU_CLIENT_ILLUM_PIECEWISE_LINEAR_CYCLE_TYPE;

#define NV_GPU_CLIENT_ILLUM_DEVICE_NUM_DEVICES_MAX 32


    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_DEVICE_INFO_V1
     * Describes the static information of illumination device type MCUV10.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_MCUV10
    {
        /*!
         * I2C Device Index: Pointing to the illumination device in I2C Devices Table.
         */
        NvU8 i2cDevIdx;
    } NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_MCUV10;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_DEVICE_INFO_V1
     * Describes the static information of illum device type GPIO_PWM_RGBW.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_GPIO_PWM_RGBW
    {
        /*!
         * Red drive GPIO pin.
         */
        NvU8 gpioPinRed;

        /*!
         * Green drive GPIO pin.
         */
        NvU8 gpioPinGreen;

        /*!
         * Blue drive GPIO pin.
         */
        NvU8 gpioPinBlue;

        /*!
         * White drive GPIO pin.
         */
        NvU8 gpioPinWhite;
    } NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_GPIO_PWM_RGBW;
    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_DEVICE_INFO_V1
     * Describes the static information of illum device type GPIO_PWM_SINGLE_COLOR.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_GPIO_PWM_SINGLE_COLOR
    {
        /*!
         * Single Color GPIO pin.
         */
        NvU8 gpioPinSingleColor;
    } NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_GPIO_PWM_SINGLE_COLOR;

    /*!
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_DEVICE_INFO_V1
    {
        /*!
         * Type of the illumination device.
         */
        NV_GPU_CLIENT_ILLUM_DEVICE_TYPE type;

        /*!
         * Supported control modes for this illumination device.
         */
        NvU32 ctrlModeMask;

        /*!
         * Union of illumination device info data. Interpreted as per
         * @ref NV_GPU_CLIENT_ILLUM_DEVICE_INFO_V1::type
         */
        union
        {
            //
            // Need to be careful when add/expanding types in this union. If any type
            // exceeds sizeof(rsvd) then rsvd has failed its purpose.
            //
            NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_MCUV10 mcuv10;
            NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_GPIO_PWM_RGBW gpioPwmRgbwv10;
            NV_GPU_CLIENT_ILLUM_DEVICE_INFO_DATA_GPIO_PWM_SINGLE_COLOR gpioPwmSingleColorv10;

            /*!
             * Reserved bytes for possible future extension of this struct.
             */
            NvU8 rsvd[64];
        } data;

        /*!
         * Reserved for future.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_DEVICE_INFO_V1;

    /*!
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS_V1
    {
        /*!
         * Version of structure. Must always be first member.
         */
        NvU32 version;

        /*!
         * Number of illumination devices present.
         */
        NvU32 numIllumDevices;

        /*!
         * Reserved bytes for possible future extension of this struct.
         */
        NvU8 rsvd[64];

        /*!
         */
        NV_GPU_CLIENT_ILLUM_DEVICE_INFO_V1 devices[NV_GPU_CLIENT_ILLUM_DEVICE_NUM_DEVICES_MAX];
    } NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS_V1;

#define NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS_VER_1 MAKE_NVAPI_VERSION(NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS_V1, 1)

#define NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS_VER NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS_VER_1

    typedef NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS_V1 NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS;

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_ClientIllumDevicesGetInfo
    //!
    //! DESCRIPTION:   This API returns static information about illumination devices on the
    //!                given GPU.
    //
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 400
    //! \param [in]  hPhysicalGpu       The physical GPU handle
    //! \param [out] pIllumDevicesInfo  Pointer to structure containing static
    //!                                 information about illumination devices.
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ClientIllumDevicesGetInfo(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_CLIENT_ILLUM_DEVICE_INFO_PARAMS *pIllumDevicesInfo);

    /*!
     * Structure representing the data required for synchronization.
     */
    typedef struct
    {
        /*!
         * Boolean representing the need for synchronization.
         */
        NvBool bSync;

        /*!
         * Time stamp value required for synchronization.
         */
        NvU64 timeStampms;

        /*!
         * Reserved for future.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_DEVICE_SYNC_V1;

    /*!
     * Structure representing the device control parameters of each ILLUM_DEVICE.
     */
    typedef struct
    {
        /*!
         * Type of the illum device.
         */
        NV_GPU_CLIENT_ILLUM_DEVICE_TYPE type;

        /*!
         * Structure containing the synchronization data for the illumination device.
         */
        NV_GPU_CLIENT_ILLUM_DEVICE_SYNC_V1 syncData;

        /*!
         * Reserved for future.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_V1;

    typedef NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_V1 NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL;

    /*!
     * Structure representing the control parameters of ILLUM_DEVICE-s.
     */
    typedef struct
    {
        /*!
         * Version of structure. Must always be first member.
         */
        NvU32 version;

        /*!
         * Number of illumination devices present.
         */
        NvU32 numIllumDevices;

        /*!
         * Reserved bytes for possible future extension of this struct.
         */
        NvU8 rsvd[64];

        /*!
         */
        NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_V1 devices[NV_GPU_CLIENT_ILLUM_DEVICE_NUM_DEVICES_MAX];
    } NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS_V1;

#define NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS_VER_1 MAKE_NVAPI_VERSION(NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS_V1, 1)

#define NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS_VER NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS_VER_1

    typedef NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS_V1 NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS;

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_ClientIllumDevicesGetControl
    //!
    //! DESCRIPTION:   This API gets control parameters about illumination devices on the
    //!                given GPU.
    //
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 400
    //! \param [in]  hPhysicalGpu          The physical GPU handle
    //! \param [inout] pIllumDevicesControl  Pointer to structure containing control
    //!                                 information about illum devices.
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ClientIllumDevicesGetControl(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS *pClientIllumDevicesControl);

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_ClientIllumDevicesSetControl
    //!
    //! DESCRIPTION:   This API sets control parameters about illumination devices on the
    //!                given GPU.
    //
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 400
    //! \param [in]  hPhysicalGpu          The physical GPU handle
    //! \param [inout] pClientIllumDevicesControl  Pointer to structure containing control
    //!                                 information about illum devices.
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ClientIllumDevicesSetControl(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_CLIENT_ILLUM_DEVICE_CONTROL_PARAMS *pClientIllumDevicesControl);

#define NV_GPU_CLIENT_ILLUM_ZONE_NUM_ZONES_MAX 32


    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_RGB
    {
        NvU8 rsvd;
    } NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_RGB;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_INFO_V1
     * Describes the static information of illum zone type RGBW.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_RGBW
    {
        NvU8 rsvd;
    } NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_RGBW;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_INFO_V1
     * Describes the static information of illum zone type SINGLE_COLOR.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_SINGLE_COLOR
    {
        NvU8 rsvd;
    } NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_SINGLE_COLOR;

    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_INFO_V1
    {
        NV_GPU_CLIENT_ILLUM_ZONE_TYPE type;

        /*!
         * Index pointing to an Illumination Device that controls this zone.
         */
        NvU8 illumDeviceIdx;

        /*!
         * Provider index for representing logical to physical zone mapping.
         */
        NvU8 provIdx;

        /*!
         * Location of the zone on the board.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_LOCATION zoneLocation;

        union
        {
            //
            // Need to be careful when add/expanding types in this union. If any type
            // exceeds sizeof(rsvd) then rsvd has failed its purpose.
            //
            NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_RGB rgb;
            NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_RGBW rgbw;
            NV_GPU_CLIENT_ILLUM_ZONE_INFO_DATA_SINGLE_COLOR singleColor;

            /*!
             * Reserved bytes for possible future extension of this struct.
             */
            NvU8 rsvd[64];
        } data;

        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_ZONE_INFO_V1;

    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS_V1
    {
        /*!
         * Version of structure. Must always be first member.
         */
        NvU32 version;

        /*!
         * Number of illumination zones present.
         */
        NvU32 numIllumZones;

        /*!
         * Reserved bytes for possible future extension of this struct.
         */
        NvU8 rsvd[64];
        NV_GPU_CLIENT_ILLUM_ZONE_INFO_V1 zones[NV_GPU_CLIENT_ILLUM_ZONE_NUM_ZONES_MAX];
    } NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS_V1;

#define NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS_VER_1 MAKE_NVAPI_VERSION(NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS_V1, 1)

#define NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS_VER NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS_VER_1

    typedef NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS_V1 NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS;

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_ClientIllumZonesGetInfo
    //!
    //! DESCRIPTION:   This API returns static information about illumination zones on the
    //!                given GPU.
    //
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 400
    //! \param [in]  hPhysicalGpu     The physical GPU handle
    //! \param [out] pIllumZonesInfo  Pointer to structure containing static
    //!                               information about illumination devices.
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ClientIllumZonesGetInfo(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_CLIENT_ILLUM_ZONE_INFO_PARAMS *pIllumZonesInfo);

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGB
     * Parameters required to represent control mode of type
     * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_MANUAL_RGB.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGB_PARAMS
    {
        /*!
         * Red compenent of color applied to the zone.
         */
        NvU8 colorR;

        /*!
         * Green compenent of color applied to the zone.
         */
        NvU8 colorG;

        /*!
         * Blue compenent of color applied to the zone.
         */
        NvU8 colorB;

        /*!
         * Brightness perecentage value of the zone.
         */
        NvU8 brightnessPct;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGB_PARAMS;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_RGB
     * Data required to represent control mode of type
     * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_MANUAL_RGB.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGB
    {
        /*!
         * Parameters required to represent control mode of type
         * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_MANUAL_RGB.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGB_PARAMS rgbParams;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGB;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_RGB
     * Data required to represent control mode of type
     * \ref NV_GPU_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_RGB.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR
    {
        /*!
         * Type of cycle effect to apply.
         */
        NV_GPU_CLIENT_ILLUM_PIECEWISE_LINEAR_CYCLE_TYPE cycleType;

        /*!
         * Number of times to repeat function within group period.
         */
        NvU8 grpCount;

        /*!
         * Time in ms to transition from color A to color B.
         */
        NvU16 riseTimems;

        /*!
         * Time in ms to transition from color B to color A.
         */
        NvU16 fallTimems;

        /*!
         * Time in ms to remain at color A before color A to color B transition.
         */
        NvU16 ATimems;

        /*!
         * Time in ms to remain at color B before color B to color A transition.
         */
        NvU16 BTimems;

        /*!
         * Time in ms to remain idle before next group of repeated function cycles.
         */
        NvU16 grpIdleTimems;

        /*!
         * Time in ms to offset the cycle relative to other zones.
         */
        NvU16 phaseOffsetms;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_RGB
     * Data required to represent control mode of type
     * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_RGB.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_RGB
    {
        /*!
         * Parameters required to represent control mode of type
         * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_RGB.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGB_PARAMS rgbParams[NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_COLOR_ENDPOINTS];

        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR piecewiseLinearData;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_RGB;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_V1
     * Describes the control data for illumination zone of type
     * \ref NV_GPU_CLIENT_ILLUM_ZONE_TYPE_RGB.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_RGB
    {
        /*!
         * Union of illumination zone control data for zone of type NV_GPU_CLIENT_ILLUM_ZONE_TYPE_RGB.
         * Interpreted as per ctrlMode.
         */
        union
        {
            //
            // Need to be careful when add/expanding types in this union. If any type
            // exceeds sizeof(rsvd) then rsvd has failed its purpose.
            //
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGB manualRGB;
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_RGB piecewiseLinearRGB;

            /*!
             * Reserved bytes for possible future extension of this struct.
             */
            NvU8 rsvd[64];
        } data;

        /*!
         * Reserved for future.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_RGB;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_DATA_MANUAL_COLOR_FIXED
     * Parameters required to represent control mode of type
     * \ref NV_GPU_ILLUM_CTRL_MODE_MANUAL_RGB.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_COLOR_FIXED_PARAMS
    {
        /*!
         * Brightness percentage value of the zone.
         */
        NvU8 brightnessPct;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_COLOR_FIXED_PARAMS;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_COLOR_FIXED
     * Data required to represent control mode of type
     * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_MANUAL_RGB.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_COLOR_FIXED
    {
        /*!
         * Parameters required to represent control mode of type
         * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_MANUAL_RGB.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_COLOR_FIXED_PARAMS colorFixedParams;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_COLOR_FIXED;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_COLOR_FIXED
     * Data required to represent control mode of type
     * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_RGB.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_COLOR_FIXED
    {
        /*!
         * Parameters required to represent control mode of type
         * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_RGB.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_COLOR_FIXED_PARAMS colorFixedParams[NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_COLOR_ENDPOINTS];

        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR piecewiseLinearData;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_COLOR_FIXED;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_V1
     * Describes the control data for illum zone of type
     * \ref NV_GPU_CLIENT_ILLUM_ZONE_TYPE_COLOR_FIXED.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_COLOR_FIXED
    {
        /*!
         * Union of illum zone control data for zone of type NV_GPU_CLIENT_ILLUM_ZONE_TYPE_COLOR_FIXED.
         * Interpreted as per ctrlMode.
         */
        union
        {
            //
            // Need to be careful when add/expanding types in this union. If any type
            // exceeds sizeof(rsvd) then rsvd has failed its purpose.
            //
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_COLOR_FIXED manualColorFixed;
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_COLOR_FIXED piecewiseLinearColorFixed;
            /*!
             * Reserved bytes for possible future extension of this struct.
             */
            NvU8 rsvd[64];
        } data;

        /*!
         * Reserved for future.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_COLOR_FIXED;

    /*!
     * Used in \ref NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGBW
     * Parameters required to represent control mode of type
     * \ref NV_GPU_CLIENT_ILLUM_CTRL_MODE_MANUAL_RGBW.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGBW_PARAMS
    {
        /*!
         * Red component of color applied to the zone.
         */
        NvU8 colorR;

        /*!
         * Green component of color applied to the zone.
         */
        NvU8 colorG;

        /*!
         * Blue component of color applied to the zone.
         */
        NvU8 colorB;

        /*!
         * White component of color applied to the zone.
         */
        NvU8 colorW;

        /*!
         * Brightness percentage value of the zone.
         */
        NvU8 brightnessPct;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGBW_PARAMS;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_DATA_RGBW
     * Data required to represent control mode of type
     * \ref NV_GPU_ILLUM_CTRL_MODE_MANUAL_RGBW.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGBW
    {
        /*!
         * Parameters required to represent control mode of type
         * \ref NV_GPU_ILLUM_CTRL_MODE_MANUAL_RGBW.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGBW_PARAMS rgbwParams;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGBW;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_DATA_RGBW
     * Data required to represent control mode of type
     * \ref NV_GPU_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_RGBW.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_RGBW
    {
        /*!
         * Parameters required to represent control mode of type
         * \ref NV_GPU_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_RGBW.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGBW_PARAMS rgbwParams[NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_COLOR_ENDPOINTS];

        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR piecewiseLinearData;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_RGBW;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_V1
     * Describes the control data for illum zone of type
     * \ref NV_GPU_ILLUM_ZONE_TYPE_RGBW.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_RGBW
    {
        /*!
         * Union of illum zone control data for zone of type NV_GPU_ILLUM_ZONE_TYPE_RGBW.
         * Interpreted as per ctrlMode.
         */
        union
        {
            //
            // Need to be careful when add/expanding types in this union. If any type
            // exceeds sizeof(rsvd) then rsvd has failed its purpose.
            //
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_RGBW manualRGBW;
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_RGBW piecewiseLinearRGBW;
            /*!
             * Reserved bytes for possible future extension of this struct.
             */
            NvU8 rsvd[64];
        } data;

        /*!
         * Reserved for future.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_RGBW;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_DATA_MANUAL_SINGLE_COLOR
     * Parameters required to represent control mode of type
     * \ref NV_GPU_ILLUM_CTRL_MODE_MANUAL_SINGLE_COLOR.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_SINGLE_COLOR_PARAMS
    {
        /*!
         * Brightness percentage value of the zone.
         */
        NvU8 brightnessPct;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_SINGLE_COLOR_PARAMS;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_DATA_SINGLE_COLOR
     * Data required to represent control mode of type
     * \ref NV_GPU_ILLUM_CTRL_MODE_MANUAL_SINGLE_COLOR.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_SINGLE_COLOR
    {
        /*!
         * Parameters required to represent control mode of type
         * \ref NV_GPU_ILLUM_CTRL_MODE_MANUAL_SINGLE_COLOR.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_SINGLE_COLOR_PARAMS singleColorParams;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_SINGLE_COLOR;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_DATA_SINGLE_COLOR
     * Data required to represent control mode of type
     * \ref NV_GPU_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_SINGLE_COLOR.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_SINGLE_COLOR
    {
        /*!
         * Parameters required to represent control mode of type
         * \ref NV_GPU_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_SINGLE_COLOR.
         */
        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_SINGLE_COLOR_PARAMS singleColorParams[NV_GPU_CLIENT_ILLUM_CTRL_MODE_PIECEWISE_LINEAR_COLOR_ENDPOINTS];

        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR piecewiseLinearData;
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_SINGLE_COLOR;

    /*!
     * Used in \ref NV_GPU_ILLUM_ZONE_CONTROL_V1
     * Describes the control data for illum zone of type
     * \ref NV_GPU_ILLUM_ZONE_TYPE_SINGLE_COLOR.
     */
    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_SINGLE_COLOR
    {
        /*!
         * Union of illum zone control data for zone of type NV_GPU_ILLUM_ZONE_TYPE_SINGLE_COLOR.
         * Interpreted as per ctrlMode.
         */
        union
        {
            //
            // Need to be careful when add/expanding types in this union. If any type
            // exceeds sizeof(rsvd) then rsvd has failed its purpose.
            //
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_MANUAL_SINGLE_COLOR manualSingleColor;
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_PIECEWISE_LINEAR_SINGLE_COLOR piecewiseLinearSingleColor;
            /*!
             * Reserved bytes for possible future extension of this struct.
             */
            NvU8 rsvd[64];
        } data;

        /*!
         * Reserved for future.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_SINGLE_COLOR;

    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_V1
    {
        NV_GPU_CLIENT_ILLUM_ZONE_TYPE type;
        NV_GPU_CLIENT_ILLUM_CTRL_MODE ctrlMode;
        union
        {
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_RGB rgb;
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_COLOR_FIXED colorFixed;
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_RGBW rgbw;
            NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_DATA_SINGLE_COLOR singleColor;
            NvU8 rsvd[64];
        } data;
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_V1;

    typedef struct _NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS_V1
    {
        NvU32 version;

        /*!
         * Bit field specifying the set of values to retrieve or set
         * - default (NV_TRUE)
         * - currently active (NV_FALSE).
         */
        NvU32 bDefault : 1;
        NvU32 rsvdField : 31;

        /*!
         * Number of illumination zones present.
         */
        NvU32 numIllumZonesControl;

        /*!
         * Reserved bytes for possible future extension of this struct.
         */
        NvU8 rsvd[64];

        NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_V1 zones[NV_GPU_CLIENT_ILLUM_ZONE_NUM_ZONES_MAX];
    } NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS_V1;

#define NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS_VER_1 MAKE_NVAPI_VERSION(NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS_V1, 1)

#define NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS_VER NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS_VER_1

    typedef NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS_V1 NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS;

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_ClientIllumZonesGetControl
    //!
    //! DESCRIPTION:    Accessor for control information about illumination zones on the
    //!                 given GPU.
    //
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 400
    //! \param [in]  hPhysicalGpu        The physical GPU handle
    //! \param [out] pIllumZonesControl  Pointer to structure containing control
    //!                                  information about illumination zones.
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ClientIllumZonesGetControl(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS *pIllumZonesControl);

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_GPU_ClientIllumZonesSetControl
    //!
    //! DESCRIPTION:   Mutator for control information about illumination zones on the
    //!                given GPU.
    //
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! TCC_SUPPORTED
    //!
    //! \since Release: 400
    //! \param [in]  hPhysicalGpu        The physical GPU handle
    //! \param [out] pIllumZonesControl  Pointer to structure containing control
    //!                                  information about illumination zones.
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ClientIllumZonesSetControl(__in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GPU_CLIENT_ILLUM_ZONE_CONTROL_PARAMS *pIllumZonesControl);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Event_RegisterCallback
    //
    //! DESCRIPTION:   This API registers the process for events. This API should be called for each eventcallback.
    //!                The handle returned to the client will be common across all eventCallbacks.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  eventCallback  Pointer to NV_EVENT_REGISTER_CALLBACK structure to call
    //!                             on new events
    //! \param [out] phClient       Handle to client for use with
    //!                             unregister function
    //!
    //! \retval ::NVAPI_OK - completed request
    //! \retval ::NVAPI_API_NOT_INTIALIZED - NvAPI not initialized
    //! \retval ::NVAPI_INVALID_ARGUMENT - Invalid argument
    //! \retval ::NVAPI_ERROR - miscellaneous error occurred
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Event_RegisterCallback(PNV_EVENT_REGISTER_CALLBACK eventCallback,
                                                 NvEventHandle *phClient);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Event_UnregisterCallback
    //
    //! DESCRIPTION:   This API unregister an event handle.
    //!                This API should be called only once per process(irrespective of the number of callbacks registered).
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]    hClient  Handle associated with this listeners
    //!                         event queue. Same as returned from
    //!                         NvAPI_Event_RegisterCallback().
    //!
    //! \retval ::NVAPI_OK - completed request
    //! \retval ::NVAPI_API_NOT_INTIALIZED - NvAPI not initialized
    //! \retval ::NVAPI_INVALID_ARGUMENT - Invalid argument
    //! \retval ::NVAPI_ERROR - miscellaneous error occurred
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Event_UnregisterCallback(NvEventHandle hClient);
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_EnumNvidiaDisplayHandle
    //
    //! This function returns the handle of the NVIDIA display specified by the enum
    //!                index (thisEnum). The client should keep enumerating until it
    //!                returns error.
    //!
    //!                Note: Display handles can get invalidated on a modeset, so the calling applications need to
    //!                renum the handles after every modeset.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \param [in]  thisEnum      The index of the NVIDIA display.
    //! \param [out] pNvDispHandle Pointer to the NVIDIA display handle.
    //!
    //! \retval NVAPI_INVALID_ARGUMENT        Either the handle pointer is NULL or enum index too big
    //! \retval NVAPI_OK                      Return a valid NvDisplayHandle based on the enum index
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND No NVIDIA device found in the system
    //! \retval NVAPI_END_ENUMERATION         No more display device to enumerate
    //! \ingroup disphandle
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_EnumNvidiaDisplayHandle(NvU32 thisEnum, NvDisplayHandle *pNvDispHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_EnumNvidiaUnAttachedDisplayHandle
    //
    //! This function returns the handle of the NVIDIA unattached display specified by the enum
    //!                index (thisEnum). The client should keep enumerating until it
    //!                returns error.
    //!                Note: Display handles can get invalidated on a modeset, so the calling applications need to
    //!                renum the handles after every modeset.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \param [in]  thisEnum                  The index of the NVIDIA display.
    //! \param [out] pNvUnAttachedDispHandle   Pointer to the NVIDIA display handle of the unattached display.
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         Either the handle pointer is NULL or enum index too big
    //! \retval NVAPI_OK                       Return a valid NvDisplayHandle based on the enum index
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA device found in the system
    //! \retval NVAPI_END_ENUMERATION          No more display device to enumerate.
    //! \ingroup disphandle
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_EnumNvidiaUnAttachedDisplayHandle(NvU32 thisEnum, NvUnAttachedDisplayHandle *pNvUnAttachedDispHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_CreateDisplayFromUnAttachedDisplay
    //
    //! This function converts the unattached display handle to an active attached display handle.
    //!
    //! At least one GPU must be present in the system and running an NVIDIA display driver.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         hNvUnAttachedDisp is not valid or pNvDisplay is NULL.
    //! \retval NVAPI_OK                       One or more handles were returned
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_CreateDisplayFromUnAttachedDisplay(NvUnAttachedDisplayHandle hNvUnAttachedDisp, NvDisplayHandle *pNvDisplay);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetAssociatedNVidiaDisplayHandle
    //
    //!  This function returns the handle of the NVIDIA display that is associated
    //!  with the given display "name" (such as "\\.\DISPLAY1").
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT         Either argument is NULL
    //! \retval NVAPI_OK                      *pNvDispHandle is now valid
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA device maps to that display name
    //! \ingroup disphandle
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetAssociatedNvidiaDisplayHandle(const char *szDisplayName, NvDisplayHandle *pNvDispHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DISP_GetAssociatedUnAttachedNvidiaDisplayHandle
    //
    //!   DESCRIPTION: This function returns the handle of an unattached NVIDIA display that is
    //!                associated with the given display name (such as "\\DISPLAY1").
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 185
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT          Either argument is NULL.
    //! \retval ::NVAPI_OK                       *pNvUnAttachedDispHandle is now valid.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND   No NVIDIA device maps to that display name.
    //!
    //! \ingroup disphandle
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_GetAssociatedUnAttachedNvidiaDisplayHandle(const char *szDisplayName, NvUnAttachedDisplayHandle *pNvUnAttachedDispHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetAssociatedNVidiaDisplayName
    //
    //!  For a given NVIDIA display handle, this function returns a string (such as "\\.\DISPLAY1") to identify the display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \retval NVAPI_INVALID_ARGUMENT          Either argument is NULL
    //! \retval NVAPI_OK                       *pNvDispHandle is now valid
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND   No NVIDIA device maps to that display name
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetAssociatedNvidiaDisplayName(NvDisplayHandle NvDispHandle, NvAPI_ShortString szDisplayName);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetUnAttachedAssociatedDisplayName
    //
    //!  This function returns the display name given, for example, "\\DISPLAY1", using the unattached NVIDIA display handle
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 95
    //!
    //! \retval NVAPI_INVALID_ARGUMENT          Either argument is NULL
    //! \retval NVAPI_OK                       *pNvDispHandle is now valid
    //! \retval NVAPI_NVIDIA_DEVICE_NOT_FOUND   No NVIDIA device maps to that display name
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetUnAttachedAssociatedDisplayName(NvUnAttachedDisplayHandle hNvUnAttachedDisp, NvAPI_ShortString szDisplayName);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_EnableHWCursor
    //
    //!  This function enables hardware cursor support
    //!
    //! SUPPORTED OS:  Windows XP
    //!
    //!
    //!
    //! \since Release: 80
    //!
    //! \return NVAPI_ERROR or NVAPI_OK
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_EnableHWCursor(NvDisplayHandle hNvDisplay);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DisableHWCursor
    //
    //! This function disables hardware cursor support
    //!
    //! SUPPORTED OS:  Windows XP
    //!
    //!
    //! \since Release: 80
    //!
    //! \return  NVAPI_ERROR or NVAPI_OK
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DisableHWCursor(NvDisplayHandle hNvDisplay);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetVBlankCounter
    //
    //!  This function gets the V-blank counter
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 80
    //!
    //! \return NVAPI_ERROR or NVAPI_OK
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetVBlankCounter(NvDisplayHandle hNvDisplay, NvU32 *pCounter);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:  NvAPI_SetRefreshRateOverride
    //
    //!  This function overrides the refresh rate on the given display/outputsMask.
    //!  The new refresh rate can be applied right away in this API call or deferred to be applied with the
    //!  next OS modeset. The override is good for only one modeset (regardless whether it's deferred or immediate).
    //!
    //!
    //! SUPPORTED OS:  Windows XP
    //!
    //!
    //! \since Release: 80
    //!
    //!  \param [in] hNvDisplay    The NVIDIA display handle. It can be NVAPI_DEFAULT_HANDLE or a handle
    //!                           enumerated from NvAPI_EnumNVidiaDisplayHandle().
    //!  \param [in] outputsMask  A set of bits that identify all target outputs which are associated with the NVIDIA
    //!                           display handle to apply the refresh rate override. When SLI is enabled, the
    //!                           outputsMask only applies to the GPU that is driving the display output.
    //!  \param [in] refreshRate  The override value. "0.0" means cancel the override.
    //!  \param [in] bSetDeferred
    //!              - "0": Apply the refresh rate override immediately in this API call.\p
    //!              - "1": Apply refresh rate at the next OS modeset.
    //!
    //!  \retval  NVAPI_INVALID_ARGUMENT hNvDisplay or outputsMask is invalid
    //!  \retval  NVAPI_OK               The refresh rate override is correct set
    //!  \retval  NVAPI_ERROR            The operation failed
    //!  \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_SetRefreshRateOverride(NvDisplayHandle hNvDisplay, NvU32 outputsMask, float refreshRate, NvU32 bSetDeferred);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetAssociatedDisplayOutputId
    //
    //! This function gets the active outputId associated with the display handle.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 90
    //!
    //! \param [in]  hNvDisplay  NVIDIA Display selection. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
    //! \param [out] outputId    The active display output ID associated with the selected display handle hNvDisplay.
    //!                          The outputid will have only one bit set. In the case of Clone or Span mode, this will indicate the
    //!                          display outputId of the primary display that the GPU is driving. See \ref handles.
    //!
    //! \retval  NVAPI_OK                      Call successful.
    //! \retval  NVAPI_NVIDIA_DEVICE_NOT_FOUND No NVIDIA GPU driving a display was found.
    //! \retval  NVAPI_EXPECTED_DISPLAY_HANDLE hNvDisplay is not a valid display handle.
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetAssociatedDisplayOutputId(NvDisplayHandle hNvDisplay, NvU32 *pOutputId);

    //! \ingroup dispcontrol
    //! Used in NvAPI_GetDisplayPortInfo().
    typedef struct _NV_DISPLAY_PORT_INFO_V1
    {
        NvU32 version;                              //!< Structure version
        NvU32 dpcd_ver;                             //!< DPCD version of the monitor
        NV_DP_LINK_RATE maxLinkRate;                //!< Maximum supported link rate
        NV_DP_LANE_COUNT maxLaneCount;              //!< Maximum supported lane count
        NV_DP_LINK_RATE curLinkRate;                //!< Current link rate
        NV_DP_LANE_COUNT curLaneCount;              //!< Current lane count
        NV_DP_COLOR_FORMAT colorFormat;             //!< Current color format
        NV_DP_DYNAMIC_RANGE dynamicRange;           //!< Dynamic range
        NV_DP_COLORIMETRY colorimetry;              //!< Ignored in RGB space
        NV_DP_BPC bpc;                              //!< Current bit-per-component
        NvU32 isDp : 1;                             //!< If the monitor is driven by a DisplayPort
        NvU32 isInternalDp : 1;                     //!< If the monitor is driven by an NV Dp transmitter
        NvU32 isColorCtrlSupported : 1;             //!< If the color format change is supported
        NvU32 is6BPCSupported : 1;                  //!< If 6 bpc is supported
        NvU32 is8BPCSupported : 1;                  //!< If 8 bpc is supported
        NvU32 is10BPCSupported : 1;                 //!< If 10 bpc is supported
        NvU32 is12BPCSupported : 1;                 //!< If 12 bpc is supported
        NvU32 is16BPCSupported : 1;                 //!< If 16 bpc is supported
        NvU32 isYCrCb420Supported : 1;              //!< If YCrCb420 is supported
        NvU32 isYCrCb422Supported : 1;              //!< If YCrCb422 is supported
        NvU32 isYCrCb444Supported : 1;              //!< If YCrCb444 is supported
        NvU32 isRgb444SupportedOnCurrentMode : 1;   //!< If Rgb444 is supported on the current mode
        NvU32 isYCbCr444SupportedOnCurrentMode : 1; //!< If YCbCr444 is supported on the current mode
        NvU32 isYCbCr422SupportedOnCurrentMode : 1; //!< If YCbCr422 is supported on the current mode
        NvU32 isYCbCr420SupportedOnCurrentMode : 1; //!< If YCbCr420 is supported on the current mode
        NvU32 is6BPCSupportedOnCurrentMode : 1;     // if 6 bpc is supported On Current Mode
        NvU32 is8BPCSupportedOnCurrentMode : 1;     // if 8 bpc is supported On Current Mode
        NvU32 is10BPCSupportedOnCurrentMode : 1;    // if 10 bpc is supported On Current Mode
        NvU32 is12BPCSupportedOnCurrentMode : 1;    // if 12 bpc is supported On Current Mode
        NvU32 is16BPCSupportedOnCurrentMode : 1;    // if 16 bpc is supported On Current Mode
        NvU32 isMonxvYCC601Capable : 1;             // if xvYCC 601 extended colorimetry is supported
        NvU32 isMonxvYCC709Capable : 1;             // if xvYCC 709 extended colorimetry is supported
        NvU32 isMonsYCC601Capable : 1;              // if sYCC601 extended colorimetry is supported
        NvU32 isMonAdobeYCC601Capable : 1;          // if AdobeYCC601 extended colorimetry is supported
        NvU32 isMonAdobeRGBCapable : 1;             // if AdobeRGB extended colorimetry is supported
        NvU32 isMonBT2020RGBCapable : 1;            // if BT2020 RGB extended colorimetry is supported
        NvU32 isMonBT2020YCCCapable : 1;            // if BT2020 Y'CbCr extended colorimetry is supported
        NvU32 isMonBT2020cYCCCapable : 1;           // if BT2020 cYCbCr (constant luminance) extended colorimetry is supported

        NvU32 reserved : 4; //!< reserved
    } NV_DISPLAY_PORT_INFO_V1;

    typedef NV_DISPLAY_PORT_INFO_V1 NV_DISPLAY_PORT_INFO;

//! Macro for constructing the version field of NV_DISPLAY_PORT_INFO.
#define NV_DISPLAY_PORT_INFO_VER1 MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_INFO, 1)

#define NV_DISPLAY_PORT_INFO_VER2 MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_INFO, 2)

#define NV_DISPLAY_PORT_INFO_VER NV_DISPLAY_PORT_INFO_VER2


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_GetDisplayPortInfo
    //
    //! \fn NvAPI_GetDisplayPortInfo(__in_opt NvDisplayHandle hNvDisplay, __in NvU32 outputId, __inout NV_DISPLAY_PORT_INFO *pInfo)
    //! DESCRIPTION:     This function returns the current DisplayPort-related information on the specified device (monitor).
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 165
    //!
    //! \param [in]     hvDisplay     NVIDIA Display selection. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
    //!                               This parameter is ignored when the outputId is a NvAPI displayId.
    //! \param [in]     outputId      This can either be the connection bit mask or the NvAPI displayId. When the legacy connection bit mask is passed,
    //!                               it should have exactly 1 bit set to indicate a single display. If it's "0" then the default outputId from
    //!                               NvAPI_GetAssociatedDisplayOutputId() will be used. See \ref handles.
    //! \param [out]    pInfo         The DisplayPort information
    //!
    //! \retval         NVAPI_OK                Completed request
    //! \retval         NVAPI_ERROR             Miscellaneous error occurred
    //! \retval         NVAPI_INVALID_ARGUMENT  Invalid input parameter.
    //
    ///////////////////////////////////////////////////////////////////////////////
    //! \ingroup        dispcontrol
    NVAPI_INTERFACE NvAPI_GetDisplayPortInfo(__in_opt NvDisplayHandle hNvDisplay, __in NvU32 outputId, __inout NV_DISPLAY_PORT_INFO *pInfo);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_SetDisplayPort
    //
    //! \fn NvAPI_SetDisplayPort(NvDisplayHandle hNvDisplay, NvU32 outputId, NV_DISPLAY_PORT_CONFIG *pCfg)
    //! DESCRIPTION:     This function sets up DisplayPort-related configurations.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release:   165
    //!
    //! \param [in]       hNvDisplay  NVIDIA display handle. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from
    //!                               NvAPI_EnumNVidiaDisplayHandle().
    //! \param [in]       outputId    This display output ID, when it's "0" it means the default outputId generated from the return of
    //!                               NvAPI_GetAssociatedDisplayOutputId(). See \ref handles.
    //! \param [in]       pCfg        The display port config structure. If pCfg is NULL, it means to use the driver's default value to setup.
    //!
    //! \retval           NVAPI_OK                Completed request
    //! \retval           NVAPI_ERROR             Miscellaneous error occurred
    //! \retval           NVAPI_INVALID_ARGUMENT  Invalid input parameter
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup dispcontrol
    //! DisplayPort configuration settings - used in NvAPI_SetDisplayPort().
    typedef struct
    {
        NvU32 version;                    //!< Structure version - 2 is the latest
        NV_DP_LINK_RATE linkRate;         //!< Link rate
        NV_DP_LANE_COUNT laneCount;       //!< Lane count
        NV_DP_COLOR_FORMAT colorFormat;   //!< Color format to set
        NV_DP_DYNAMIC_RANGE dynamicRange; //!< Dynamic range
        NV_DP_COLORIMETRY colorimetry;    //!< Ignored in RGB space
        NV_DP_BPC bpc;                    //!< Bit-per-component
        NvU32 isHPD : 1;                  //!< If the control panel is making this call due to HPD
        NvU32 isSetDeferred : 1;          //!< Requires an OS modeset to finalize the setup if set
        NvU32 isChromaLpfOff : 1;         //!< Force the chroma low_pass_filter to be off
        NvU32 isDitherOff : 1;            //!< Force to turn off dither
        NvU32 testLinkTrain : 1;          //!< If testing mode, skip validation
        NvU32 testColorChange : 1;        //!< If testing mode, skip validation

    } NV_DISPLAY_PORT_CONFIG;

//! \addtogroup dispcontrol
//! @{
//! Macro for constructing the version field of NV_DISPLAY_PORT_CONFIG
#define NV_DISPLAY_PORT_CONFIG_VER MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_CONFIG, 2)

//! Macro for constructing the version field of NV_DISPLAY_PORT_CONFIG
#define NV_DISPLAY_PORT_CONFIG_VER_1 MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_CONFIG, 1)

//! Macro for constructing the version field of NV_DISPLAY_PORT_CONFIG
#define NV_DISPLAY_PORT_CONFIG_VER_2 MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_CONFIG, 2)

    //! @}

    //! \ingroup          dispcontrol
    NVAPI_INTERFACE NvAPI_SetDisplayPort(NvDisplayHandle hNvDisplay, NvU32 outputId, NV_DISPLAY_PORT_CONFIG *pCfg);

    //! \ingroup dispcontrol
    //! Used in NvAPI_GetHDMISupportInfo().
    typedef struct _NV_HDMI_SUPPORT_INFO_V1
    {
        NvU32 version; //!< Structure version

        NvU32 isGpuHDMICapable : 1;       //!< If the GPU can handle HDMI
        NvU32 isMonUnderscanCapable : 1;  //!< If the monitor supports underscan
        NvU32 isMonBasicAudioCapable : 1; //!< If the monitor supports basic audio
        NvU32 isMonYCbCr444Capable : 1;   //!< If YCbCr 4:4:4 is supported
        NvU32 isMonYCbCr422Capable : 1;   //!< If YCbCr 4:2:2 is supported
        NvU32 isMonxvYCC601Capable : 1;   //!< If xvYCC 601 is supported
        NvU32 isMonxvYCC709Capable : 1;   //!< If xvYCC 709 is supported
        NvU32 isMonHDMI : 1;              //!< If the monitor is HDMI (with IEEE's HDMI registry ID)
        NvU32 reserved : 24;              //!< Reserved.

        NvU32 EDID861ExtRev; //!< Revision number of the EDID 861 extension
    } NV_HDMI_SUPPORT_INFO_V1;

    typedef struct _NV_HDMI_SUPPORT_INFO_V2
    {
        NvU32 version; //!< Structure version

        NvU32 isGpuHDMICapable : 1;        //!< If the GPU can handle HDMI
        NvU32 isMonUnderscanCapable : 1;   //!< If the monitor supports underscan
        NvU32 isMonBasicAudioCapable : 1;  //!< If the monitor supports basic audio
        NvU32 isMonYCbCr444Capable : 1;    //!< If YCbCr 4:4:4 is supported
        NvU32 isMonYCbCr422Capable : 1;    //!< If YCbCr 4:2:2 is supported
        NvU32 isMonxvYCC601Capable : 1;    //!< If xvYCC extended colorimetry 601 is supported
        NvU32 isMonxvYCC709Capable : 1;    //!< If xvYCC extended colorimetry 709 is supported
        NvU32 isMonHDMI : 1;               //!< If the monitor is HDMI (with IEEE's HDMI registry ID)
        NvU32 isMonsYCC601Capable : 1;     //!< if sYCC601 extended colorimetry is supported
        NvU32 isMonAdobeYCC601Capable : 1; //!< if AdobeYCC601 extended colorimetry is supported
        NvU32 isMonAdobeRGBCapable : 1;    //!< if AdobeRGB extended colorimetry is supported
        NvU32 reserved : 21;               //!< Reserved.

        NvU32 EDID861ExtRev; //!< Revision number of the EDID 861 extension
    } NV_HDMI_SUPPORT_INFO_V2;

#define NV_HDMI_SUPPORT_INFO_VER1 MAKE_NVAPI_VERSION(NV_HDMI_SUPPORT_INFO_V1, 1)

#define NV_HDMI_SUPPORT_INFO_VER2 MAKE_NVAPI_VERSION(NV_HDMI_SUPPORT_INFO_V2, 2)


#ifndef NV_HDMI_SUPPORT_INFO_VER

    typedef NV_HDMI_SUPPORT_INFO_V2 NV_HDMI_SUPPORT_INFO;
#define NV_HDMI_SUPPORT_INFO_VER NV_HDMI_SUPPORT_INFO_VER2


#endif

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_GetHDMISupportInfo
    //
    //! \fn NvAPI_GetHDMISupportInfo(__in_opt NvDisplayHandle hNvDisplay, __in NvU32 outputId, __inout NV_HDMI_SUPPORT_INFO *pInfo)
    //!   This API returns the current infoframe data on the specified device(monitor).
    //!
    //! \since Release: 95
    //!
    //! \param [in]  hvDisplay  NVIDIA Display selection. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
    //!                         This parameter is ignored when the outputId is a NvAPI displayId.
    //! \param [in]  outputId   This can either be the connection bit mask or the NvAPI displayId. When the legacy connection bit mask is passed,
    //!                         it should have exactly 1 bit set to indicate a single display. If it's "0" then the default outputId from
    //!                         NvAPI_GetAssociatedDisplayOutputId() will be used. See \ref handles.
    //! \param [out] pInfo      The monitor and GPU's HDMI support info
    //!
    //! \retval  NVAPI_OK                Completed request
    //! \retval  NVAPI_ERROR             Miscellaneous error occurred
    //! \retval  NVAPI_INVALID_ARGUMENT  Invalid input parameter.
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup dispcontrol
    NVAPI_INTERFACE NvAPI_GetHDMISupportInfo(__in_opt NvDisplayHandle hNvDisplay, __in NvU32 outputId, __inout NV_HDMI_SUPPORT_INFO *pInfo);

    //! \ingroup dispcontrol

    typedef enum
    {
        NV_INFOFRAME_CMD_GET_DEFAULT = 0, //!< Returns the fields in the infoframe with values set by the manufacturer - NVIDIA/OEM.
        NV_INFOFRAME_CMD_RESET,           //!< Sets the fields in the infoframe to auto, and infoframe to the default infoframe for use in a set.
        NV_INFOFRAME_CMD_GET,             //!< Get the current infoframe state.
        NV_INFOFRAME_CMD_SET,             //!< Set the current infoframe state (flushed to the monitor), the values are one time and do not persist.
        NV_INFOFRAME_CMD_GET_OVERRIDE,    //!< Get the override infoframe state, non-override fields will be set to value = AUTO, overridden fields will have the current override values.
        NV_INFOFRAME_CMD_SET_OVERRIDE,    //!< Set the override infoframe state, non-override fields will be set to value = AUTO, other values indicate override; persist across modeset/reboot
        NV_INFOFRAME_CMD_GET_PROPERTY,    //!< get properties associated with infoframe (each of the infoframe type will have properties)
        NV_INFOFRAME_CMD_SET_PROPERTY,    //!< set properties associated with infoframe
    } NV_INFOFRAME_CMD;

    typedef enum
    {
        NV_INFOFRAME_PROPERTY_MODE_AUTO = 0,       //!< Driver determines whether to send infoframes.
        NV_INFOFRAME_PROPERTY_MODE_ENABLE,         //!< Driver always sends infoframe.
        NV_INFOFRAME_PROPERTY_MODE_DISABLE,        //!< Driver never sends infoframe.
        NV_INFOFRAME_PROPERTY_MODE_ALLOW_OVERRIDE, //!< Driver only sends infoframe when client requests it via infoframe escape call.
    } NV_INFOFRAME_PROPERTY_MODE;

    //! Returns whether the current monitor is in blacklist or force this monitor to be in blacklist.
    typedef enum
    {
        NV_INFOFRAME_PROPERTY_BLACKLIST_FALSE = 0,
        NV_INFOFRAME_PROPERTY_BLACKLIST_TRUE,
    } NV_INFOFRAME_PROPERTY_BLACKLIST;

    typedef struct
    {
        NvU32 mode : 4;
        NvU32 blackList : 2;
        NvU32 reserved : 10;
        NvU32 version : 8;
        NvU32 length : 8;
    } NV_INFOFRAME_PROPERTY;

    //! Byte1 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_SCANINFO_NODATA = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_SCANINFO_OVERSCAN,
        NV_INFOFRAME_FIELD_VALUE_AVI_SCANINFO_UNDERSCAN,
        NV_INFOFRAME_FIELD_VALUE_AVI_SCANINFO_FUTURE,
        NV_INFOFRAME_FIELD_VALUE_AVI_SCANINFO_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_SCANINFO;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_BARDATA_NOT_PRESENT = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_BARDATA_VERTICAL_PRESENT,
        NV_INFOFRAME_FIELD_VALUE_AVI_BARDATA_HORIZONTAL_PRESENT,
        NV_INFOFRAME_FIELD_VALUE_AVI_BARDATA_BOTH_PRESENT,
        NV_INFOFRAME_FIELD_VALUE_AVI_BARDATA_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_BARDATA;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_AFI_ABSENT = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_AFI_PRESENT,
        NV_INFOFRAME_FIELD_VALUE_AVI_AFI_AUTO = 3
    } NV_INFOFRAME_FIELD_VALUE_AVI_ACTIVEFORMATINFO;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORFORMAT_RGB = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORFORMAT_YCbCr422,
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORFORMAT_YCbCr444,
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORFORMAT_FUTURE,
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORFORMAT_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_COLORFORMAT;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_F17_FALSE = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_F17_TRUE,
        NV_INFOFRAME_FIELD_VALUE_AVI_F17_AUTO = 3
    } NV_INFOFRAME_FIELD_VALUE_AVI_F17;

    //! Byte2 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_NO_AFD = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_RESERVE01,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_RESERVE02,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_RESERVE03,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_LETTERBOX_GT16x9,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_RESERVE05,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_RESERVE06,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_RESERVE07,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_EQUAL_CODEDFRAME = 8,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_CENTER_4x3,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_CENTER_16x9,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_CENTER_14x9,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_RESERVE12,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_4x3_ON_14x9,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_16x9_ON_14x9,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_16x9_ON_4x3,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION_AUTO = 31,
    } NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOACTIVEPORTION;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOCODEDFRAME_NO_DATA = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOCODEDFRAME_4x3,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOCODEDFRAME_16x9,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOCODEDFRAME_FUTURE,
        NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOCODEDFRAME_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_ASPECTRATIOCODEDFRAME;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORIMETRY_NO_DATA = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORIMETRY_SMPTE_170M,
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORIMETRY_ITUR_BT709,
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORIMETRY_USE_EXTENDED_COLORIMETRY,
        NV_INFOFRAME_FIELD_VALUE_AVI_COLORIMETRY_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_COLORIMETRY;

    //! Byte 3 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_NONUNIFORMPICTURESCALING_NO_DATA = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_NONUNIFORMPICTURESCALING_HORIZONTAL,
        NV_INFOFRAME_FIELD_VALUE_AVI_NONUNIFORMPICTURESCALING_VERTICAL,
        NV_INFOFRAME_FIELD_VALUE_AVI_NONUNIFORMPICTURESCALING_BOTH,
        NV_INFOFRAME_FIELD_VALUE_AVI_NONUNIFORMPICTURESCALING_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_NONUNIFORMPICTURESCALING;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_RGBQUANTIZATION_DEFAULT = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_RGBQUANTIZATION_LIMITED_RANGE,
        NV_INFOFRAME_FIELD_VALUE_AVI_RGBQUANTIZATION_FULL_RANGE,
        NV_INFOFRAME_FIELD_VALUE_AVI_RGBQUANTIZATION_RESERVED,
        NV_INFOFRAME_FIELD_VALUE_AVI_RGBQUANTIZATION_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_RGBQUANTIZATION;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_XVYCC601 = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_XVYCC709,
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_SYCC601,
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_ADOBEYCC601,
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_ADOBERGB,
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_RESERVED05,
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_RESERVED06,
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_RESERVED07,
        NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY_AUTO = 15
    } NV_INFOFRAME_FIELD_VALUE_AVI_EXTENDEDCOLORIMETRY;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_ITC_VIDEO_CONTENT = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_ITC_ITCONTENT,
        NV_INFOFRAME_FIELD_VALUE_AVI_ITC_AUTO = 3
    } NV_INFOFRAME_FIELD_VALUE_AVI_ITC;

    //! Byte 4 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_NONE = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X02,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X03,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X04,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X05,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X06,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X07,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X08,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X09,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_X10,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_RESERVED10,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_RESERVED11,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_RESERVED12,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_RESERVED13,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_RESERVED14,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_RESERVED15,
        NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION_AUTO = 31
    } NV_INFOFRAME_FIELD_VALUE_AVI_PIXELREPETITION;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_CONTENTTYPE_GRAPHICS = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_CONTENTTYPE_PHOTO,
        NV_INFOFRAME_FIELD_VALUE_AVI_CONTENTTYPE_CINEMA,
        NV_INFOFRAME_FIELD_VALUE_AVI_CONTENTTYPE_GAME,
        NV_INFOFRAME_FIELD_VALUE_AVI_CONTENTTYPE_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_CONTENTTYPE;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AVI_YCCQUANTIZATION_LIMITED_RANGE = 0,
        NV_INFOFRAME_FIELD_VALUE_AVI_YCCQUANTIZATION_FULL_RANGE,
        NV_INFOFRAME_FIELD_VALUE_AVI_YCCQUANTIZATION_RESERVED02,
        NV_INFOFRAME_FIELD_VALUE_AVI_YCCQUANTIZATION_RESERVED03,
        NV_INFOFRAME_FIELD_VALUE_AVI_YCCQUANTIZATION_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AVI_YCCQUANTIZATION;

    //! Adding an Auto bit to each field
    typedef struct
    {
        NvU32 vic : 8;
        NvU32 pixelRepeat : 5;
        NvU32 colorSpace : 3;
        NvU32 colorimetry : 3;
        NvU32 extendedColorimetry : 4;
        NvU32 rgbQuantizationRange : 3;
        NvU32 yccQuantizationRange : 3;
        NvU32 itContent : 2;
        NvU32 contentTypes : 3;
        NvU32 scanInfo : 3;
        NvU32 activeFormatInfoPresent : 2;
        NvU32 activeFormatAspectRatio : 5;
        NvU32 picAspectRatio : 3;
        NvU32 nonuniformScaling : 3;
        NvU32 barInfo : 3;
        NvU32 top_bar : 17;
        NvU32 bottom_bar : 17;
        NvU32 left_bar : 17;
        NvU32 right_bar : 17;
        NvU32 Future17 : 2;
        NvU32 Future47 : 2;
    } NV_INFOFRAME_VIDEO;

    //! Byte 1 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_IN_HEADER = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_2,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_3,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_4,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_5,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_6,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_7,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_8,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT_AUTO = 15
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELCOUNT;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_IN_HEADER = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_PCM,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_AC3,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_MPEG1,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_MP3,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_MPEG2,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_AACLC,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_DTS,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_ATRAC,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_DSD,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_EAC3,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_DTSHD,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_MLP,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_DST,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_WMAPRO,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_USE_CODING_EXTENSION_TYPE,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE_AUTO = 31
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGTYPE;

    //! Byte 2 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLESIZE_IN_HEADER = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLESIZE_16BITS,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLESIZE_20BITS,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLESIZE_24BITS,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLESIZE_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLESIZE;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_IN_HEADER = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_32000HZ,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_44100HZ,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_48000HZ,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_88200KHZ,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_96000KHZ,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_176400KHZ,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_192000KHZ,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY_AUTO = 15
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_SAMPLEFREQUENCY;

    //! Byte 3 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_USE_CODING_TYPE = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_HEAAC,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_HEAACV2,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_MPEGSURROUND,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE04,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE05,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE06,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE07,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE08,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE09,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE10,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE11,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE12,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE13,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE14,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE15,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE16,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE17,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE18,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE19,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE20,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE21,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE22,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE23,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE24,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE25,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE26,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE27,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE28,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE29,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE30,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_RESERVE31,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE_AUTO = 63
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_CODINGEXTENSIONTYPE;

    //! Byte 4 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_X_X_X_X_FR_FL = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_X_X_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_X_X_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_X_X_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_X_RC_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_X_RC_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_X_RC_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_X_RC_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_RR_RL_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_RR_RL_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_X_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_RC_RR_RL_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_RC_RR_RL_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_RC_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_RC_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_RRC_RLC_RR_RL_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_RRC_RLC_RR_RL_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_RRC_RLC_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_RRC_RLC_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_X_X_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_X_X_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_X_X_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_X_X_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_X_RC_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_X_RC_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_X_RC_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_X_RC_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_RR_RL_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_RR_RL_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRC_FLC_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_FCH_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_X_FCH_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_TC_X_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_TC_X_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRH_FLH_RR_RL_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRH_FLH_RR_RL_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRW_FLW_RR_RL_X_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRW_FLW_RR_RL_X_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_TC_RC_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_TC_RC_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FCH_RC_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FCH_RC_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_TC_FCH_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_TC_FCH_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRH_FLH_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRH_FLH_RR_RL_FC_LFE_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRW_FLW_RR_RL_FC_X_FR_FL,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_FRW_FLW_RR_RL_FC_LFE_FR_FL = 0X31,
        // all other values should default to auto
        NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION_AUTO = 0x1FF
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_CHANNELALLOCATION;

    //! Byte 5 related
    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LFEPLAYBACKLEVEL_NO_DATA = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LFEPLAYBACKLEVEL_0DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LFEPLAYBACKLEVEL_PLUS10DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LFEPLAYBACKLEVEL_RESERVED03,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LFEPLAYBACKLEVEL_AUTO = 7
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_LFEPLAYBACKLEVEL;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_0DB = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_1DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_2DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_3DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_4DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_5DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_6DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_7DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_8DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_9DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_10DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_11DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_12DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_13DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_14DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_15DB,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES_AUTO = 31
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_LEVELSHIFTVALUES;

    typedef enum
    {
        NV_INFOFRAME_FIELD_VALUE_AUDIO_DOWNMIX_PERMITTED = 0,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_DOWNMIX_PROHIBITED,
        NV_INFOFRAME_FIELD_VALUE_AUDIO_DOWNMIX_AUTO = 3
    } NV_INFOFRAME_FIELD_VALUE_AUDIO_DOWNMIX;

    typedef struct
    {
        NvU32 codingType : 5;
        NvU32 codingExtensionType : 6;
        NvU32 sampleSize : 3;
        NvU32 sampleRate : 4;
        NvU32 channelCount : 4;
        NvU32 speakerPlacement : 9;
        NvU32 downmixInhibit : 2;
        NvU32 lfePlaybackLevel : 3;
        NvU32 levelShift : 5;
        NvU32 Future12 : 2;
        NvU32 Future2x : 4;
        NvU32 Future3x : 4;
        NvU32 Future52 : 2;
        NvU32 Future6 : 9;
        NvU32 Future7 : 9;
        NvU32 Future8 : 9;
        NvU32 Future9 : 9;
        NvU32 Future10 : 9;
    } NV_INFOFRAME_AUDIO;

    typedef struct
    {
        NvU32 version; //!< version of this structure
        NvU16 size;    //!< size of this structure
        NvU8 cmd;      //!< The actions to perform from NV_INFOFRAME_CMD
        NvU8 type;     //!< type of infoframe

        union
        {
            NV_INFOFRAME_PROPERTY property; //!< This is NVIDIA-specific and corresponds to the property cmds and associated infoframe.
            NV_INFOFRAME_AUDIO audio;
            NV_INFOFRAME_VIDEO video;
        } infoframe;
    } NV_INFOFRAME_DATA;

//! Macro for constructing the version field of ::NV_INFOFRAME_DATA
#define NV_INFOFRAME_DATA_VER MAKE_NVAPI_VERSION(NV_INFOFRAME_DATA, 1)


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_Disp_InfoFrameControl
    //
    //! DESCRIPTION:     This API controls the InfoFrame values.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId         Monitor Identifier
    //! \param [in,out] pInfoframeData    Contains data corresponding to InfoFrame
    //!
    //! \return    This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!            specific meaning for this API, they are listed below.
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Disp_InfoFrameControl(__in NvU32 displayId, __inout NV_INFOFRAME_DATA *pInfoframeData);

    //! \ingroup dispcontrol
    //! @{
    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_Disp_ColorControl
    //
    //! \fn NvAPI_Disp_ColorControl(NvU32 displayId, NV_COLOR_DATA *pColorData)
    //! DESCRIPTION:    This API controls the Color values.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId         Monitor Identifier
    //! \param [in,out] pColorData        Contains data corresponding to color information
    //!
    //! \return  RETURN STATUS:
    //! ::NVAPI_OK,
    //! ::NVAPI_ERROR,
    //! ::NVAPI_INVALID_ARGUMENT
    //
    ///////////////////////////////////////////////////////////////////////////////

    typedef enum
    {
        NV_COLOR_CMD_GET = 1,
        NV_COLOR_CMD_SET,
        NV_COLOR_CMD_IS_SUPPORTED_COLOR,
        NV_COLOR_CMD_GET_DEFAULT
    } NV_COLOR_CMD;

    //!  See Table 14 of CEA-861E.  Not all of this is supported by the GPU.
    typedef enum
    {
        NV_COLOR_FORMAT_RGB = 0,
        NV_COLOR_FORMAT_YUV422,
        NV_COLOR_FORMAT_YUV444,
        NV_COLOR_FORMAT_YUV420,

        NV_COLOR_FORMAT_DEFAULT = 0xFE,
        NV_COLOR_FORMAT_AUTO = 0xFF
    } NV_COLOR_FORMAT;

    typedef enum
    {
        NV_COLOR_COLORIMETRY_RGB = 0,
        NV_COLOR_COLORIMETRY_YCC601,
        NV_COLOR_COLORIMETRY_YCC709,
        NV_COLOR_COLORIMETRY_XVYCC601,
        NV_COLOR_COLORIMETRY_XVYCC709,
        NV_COLOR_COLORIMETRY_SYCC601,
        NV_COLOR_COLORIMETRY_ADOBEYCC601,
        NV_COLOR_COLORIMETRY_ADOBERGB,
        NV_COLOR_COLORIMETRY_BT2020RGB,
        NV_COLOR_COLORIMETRY_BT2020YCC,
        NV_COLOR_COLORIMETRY_BT2020cYCC,

        NV_COLOR_COLORIMETRY_DEFAULT = 0xFE,
        NV_COLOR_COLORIMETRY_AUTO = 0xFF
    } NV_COLOR_COLORIMETRY;

    typedef enum _NV_DYNAMIC_RANGE
    {
        NV_DYNAMIC_RANGE_VESA = 0x0,
        NV_DYNAMIC_RANGE_CEA = 0x1,

        NV_DYNAMIC_RANGE_AUTO = 0xFF
    } NV_DYNAMIC_RANGE;

    typedef enum _NV_BPC
    {
        NV_BPC_DEFAULT = 0,
        NV_BPC_6 = 1,
        NV_BPC_8 = 2,
        NV_BPC_10 = 3,
        NV_BPC_12 = 4,
        NV_BPC_16 = 5,
    } NV_BPC;

    typedef enum _NV_COLOR_SELECTION_POLICY
    {
        NV_COLOR_SELECTION_POLICY_USER = 0,         //!< app/nvcpl make decision to select the desire color format
        NV_COLOR_SELECTION_POLICY_BEST_QUALITY = 1, //!< driver/ OS make decision to select the best color format
        NV_COLOR_SELECTION_POLICY_DEFAULT = NV_COLOR_SELECTION_POLICY_BEST_QUALITY,
        NV_COLOR_SELECTION_POLICY_UNKNOWN = 0xFF,
    } NV_COLOR_SELECTION_POLICY;

    typedef enum _NV_DESKTOP_COLOR_DEPTH
    {
        NV_DESKTOP_COLOR_DEPTH_DEFAULT = 0x0,                                      // set if the current setting should be kept
        NV_DESKTOP_COLOR_DEPTH_8BPC = 0x1,                                         // 8 bit int per color component (8 bit int alpha)
        NV_DESKTOP_COLOR_DEPTH_10BPC = 0x2,                                        // 10 bit int per color component (2 bit int alpha)
        NV_DESKTOP_COLOR_DEPTH_16BPC_FLOAT = 0x3,                                  // 16 bit float per color component (16 bit float alpha)
        NV_DESKTOP_COLOR_DEPTH_16BPC_FLOAT_WCG = 0x4,                              // 16 bit float per color component (16 bit float alpha) wide color gamut
        NV_DESKTOP_COLOR_DEPTH_16BPC_FLOAT_HDR = 0x5,                              // 16 bit float per color component (16 bit float alpha) HDR
        NV_DESKTOP_COLOR_DEPTH_MAX_VALUE = NV_DESKTOP_COLOR_DEPTH_16BPC_FLOAT_HDR, // must be set to highest enum value
    } NV_DESKTOP_COLOR_DEPTH;

    typedef struct _NV_COLOR_DATA_V1
    {
        NvU32 version; //!< Version of this structure
        NvU16 size;    //!< Size of this structure
        NvU8 cmd;
        struct
        {
            NvU8 colorFormat; //!< One of NV_COLOR_FORMAT enum values.
            NvU8 colorimetry; //!< One of NV_COLOR_COLORIMETRY enum values.
        } data;
    } NV_COLOR_DATA_V1;

    typedef struct _NV_COLOR_DATA_V2
    {
        NvU32 version; //!< Version of this structure
        NvU16 size;    //!< Size of this structure
        NvU8 cmd;
        struct
        {
            NvU8 colorFormat;  //!< One of NV_COLOR_FORMAT enum values.
            NvU8 colorimetry;  //!< One of NV_COLOR_COLORIMETRY enum values.
            NvU8 dynamicRange; //!< One of NV_DYNAMIC_RANGE enum values.
        } data;
    } NV_COLOR_DATA_V2;

    typedef struct _NV_COLOR_DATA_V3
    {
        NvU32 version; //!< Version of this structure
        NvU16 size;    //!< Size of this structure
        NvU8 cmd;
        struct
        {
            NvU8 colorFormat;  //!< One of NV_COLOR_FORMAT enum values.
            NvU8 colorimetry;  //!< One of NV_COLOR_COLORIMETRY enum values.
            NvU8 dynamicRange; //!< One of NV_DYNAMIC_RANGE enum values.
            NV_BPC bpc;        //!< One of NV_BPC enum values.
        } data;
    } NV_COLOR_DATA_V3;

    typedef struct _NV_COLOR_DATA_V4
    {
        NvU32 version; //!< Version of this structure
        NvU16 size;    //!< Size of this structure
        NvU8 cmd;
        struct
        {
            NvU8 colorFormat;                               //!< One of NV_COLOR_FORMAT enum values.
            NvU8 colorimetry;                               //!< One of NV_COLOR_COLORIMETRY enum values.
            NvU8 dynamicRange;                              //!< One of NV_DYNAMIC_RANGE enum values.
            NV_BPC bpc;                                     //!< One of NV_BPC enum values.
            NV_COLOR_SELECTION_POLICY colorSelectionPolicy; //!< One of the color selection policy
        } data;
    } NV_COLOR_DATA_V4;

    typedef struct _NV_COLOR_DATA_V5
    {
        NvU32 version; //!< Version of this structure
        NvU16 size;    //!< Size of this structure
        NvU8 cmd;
        struct
        {
            NvU8 colorFormat;                               //!< One of NV_COLOR_FORMAT enum values.
            NvU8 colorimetry;                               //!< One of NV_COLOR_COLORIMETRY enum values.
            NvU8 dynamicRange;                              //!< One of NV_DYNAMIC_RANGE enum values.
            NV_BPC bpc;                                     //!< One of NV_BPC enum values.
            NV_COLOR_SELECTION_POLICY colorSelectionPolicy; //!< One of the color selection policy
            NV_DESKTOP_COLOR_DEPTH depth;                   //!< One of NV_DESKTOP_COLOR_DEPTH enum values.
        } data;
    } NV_COLOR_DATA_V5;

    typedef NV_COLOR_DATA_V5 NV_COLOR_DATA;

#define NV_COLOR_DATA_VER1 MAKE_NVAPI_VERSION(NV_COLOR_DATA_V1, 1)

#define NV_COLOR_DATA_VER2 MAKE_NVAPI_VERSION(NV_COLOR_DATA_V2, 2)

#define NV_COLOR_DATA_VER3 MAKE_NVAPI_VERSION(NV_COLOR_DATA_V3, 3)

#define NV_COLOR_DATA_VER4 MAKE_NVAPI_VERSION(NV_COLOR_DATA_V4, 4)

#define NV_COLOR_DATA_VER5 MAKE_NVAPI_VERSION(NV_COLOR_DATA_V5, 5)

#define NV_COLOR_DATA_VER NV_COLOR_DATA_VER5


    NVAPI_INTERFACE NvAPI_Disp_ColorControl(NvU32 displayId, NV_COLOR_DATA *pColorData);

    //! @}

    typedef enum
    {
        NV_STATIC_METADATA_TYPE_1 = 0 //!< Tells the type of structure used to define the Static Metadata Descriptor block.
    } NV_STATIC_METADATA_DESCRIPTOR_ID;

    typedef struct _NV_HDR_CAPABILITIES_V1
    {
        NvU32 version; //!< Version of this structure

        NvU32 isST2084EotfSupported : 1;            //!< HDMI2.0a UHDA HDR with ST2084 EOTF (CEA861.3). Boolean: 0 = not supported, 1 = supported;
        NvU32 isTraditionalHdrGammaSupported : 1;   //!< HDMI2.0a traditional HDR gamma (CEA861.3). Boolean: 0 = not supported, 1 = supported;
        NvU32 isEdrSupported : 1;                   //!< Extended Dynamic Range on SDR displays. Boolean: 0 = not supported, 1 = supported;
        NvU32 driverExpandDefaultHdrParameters : 1; //!< If set, driver will expand default (=zero) HDR capabilities parameters contained in display's EDID.
                                                    //!< Boolean: 0 = report actual HDR parameters, 1 = expand default HDR parameters;
        NvU32 isTraditionalSdrGammaSupported : 1;   //!< HDMI2.0a traditional SDR gamma (CEA861.3). Boolean: 0 = not supported, 1 = supported;
        NvU32 reserved : 27;

        NV_STATIC_METADATA_DESCRIPTOR_ID static_metadata_descriptor_id; //!< Static Metadata Descriptor Id (0 for static metadata type 1)

        struct //!< Static Metadata Descriptor Type 1, CEA-861.3, SMPTE ST2086
        {
            NvU16 displayPrimary_x0; //!< x coordinate of color primary 0 (e.g. Red) of the display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y0; //!< y coordinate of color primary 0 (e.g. Red) of the display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayPrimary_x1; //!< x coordinate of color primary 1 (e.g. Green) of the display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y1; //!< y coordinate of color primary 1 (e.g. Green) of the display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayPrimary_x2; //!< x coordinate of color primary 2 (e.g. Blue) of the display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y2; //!< y coordinate of color primary 2 (e.g. Blue) of the display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayWhitePoint_x; //!< x coordinate of white point of the display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayWhitePoint_y; //!< y coordinate of white point of the display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 desired_content_max_luminance;               //!< Maximum display luminance = desired max luminance of HDR content ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
            NvU16 desired_content_min_luminance;               //!< Minimum display luminance = desired min luminance of HDR content ([0x0001-0xFFFF] = [1.0 - 6.55350] cd/m^2)
            NvU16 desired_content_max_frame_average_luminance; //!< Desired maximum Frame-Average Light Level (MaxFALL) of HDR content ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
        } display_data;
    } NV_HDR_CAPABILITIES_V1;

    typedef struct _NV_HDR_CAPABILITIES_V2
    {
        NvU32 version; //!< Version of this structure

        NvU32 isST2084EotfSupported : 1;            //!< HDMI2.0a UHDA HDR with ST2084 EOTF (CEA861.3). Boolean: 0 = not supported, 1 = supported;
        NvU32 isTraditionalHdrGammaSupported : 1;   //!< HDMI2.0a traditional HDR gamma (CEA861.3). Boolean: 0 = not supported, 1 = supported;
        NvU32 isEdrSupported : 1;                   //!< Extended Dynamic Range on SDR displays. Boolean: 0 = not supported, 1 = supported;
        NvU32 driverExpandDefaultHdrParameters : 1; //!< If set, driver will expand default (=zero) HDR capabilities parameters contained in display's EDID.
                                                    //!< Boolean: 0 = report actual HDR parameters, 1 = expand default HDR parameters;
        NvU32 isTraditionalSdrGammaSupported : 1;   //!< HDMI2.0a traditional SDR gamma (CEA861.3). Boolean: 0 = not supported, 1 = supported;
        NvU32 isDolbyVisionSupported : 1;           //!< Dolby Vision Support. Boolean: 0 = not supported, 1 = supported;
        NvU32 reserved : 26;

        NV_STATIC_METADATA_DESCRIPTOR_ID static_metadata_descriptor_id; //!< Static Metadata Descriptor Id (0 for static metadata type 1)

        struct //!< Static Metadata Descriptor Type 1, CEA-861.3, SMPTE ST2086
        {
            NvU16 displayPrimary_x0; //!< x coordinate of color primary 0 (e.g. Red) of the display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y0; //!< y coordinate of color primary 0 (e.g. Red) of the display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayPrimary_x1; //!< x coordinate of color primary 1 (e.g. Green) of the display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y1; //!< y coordinate of color primary 1 (e.g. Green) of the display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayPrimary_x2; //!< x coordinate of color primary 2 (e.g. Blue) of the display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y2; //!< y coordinate of color primary 2 (e.g. Blue) of the display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayWhitePoint_x; //!< x coordinate of white point of the display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayWhitePoint_y; //!< y coordinate of white point of the display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 desired_content_max_luminance;               //!< Maximum display luminance = desired max luminance of HDR content ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
            NvU16 desired_content_min_luminance;               //!< Minimum display luminance = desired min luminance of HDR content ([0x0001-0xFFFF] = [1.0 - 6.55350] cd/m^2)
            NvU16 desired_content_max_frame_average_luminance; //!< Desired maximum Frame-Average Light Level (MaxFALL) of HDR content ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
        } display_data;

        struct
        {
            NvU32 VSVDB_version : 3;               //!< Version of Vendor Data block,Version 0: 25 bytes  Version 1: 14 bytes
            NvU32 dm_version : 8;                  //!< Upper Nibble represents major version of Display Management(DM) while lower represents minor version of DM
            NvU32 supports_2160p60hz : 1;          //!< If set sink is capable of 4kx2k @ 60hz
            NvU32 supports_YUV422_12bit : 1;       //!< If set, sink is capable of YUV422-12 bit
            NvU32 supports_global_dimming : 1;     //!< Indicates if sink supports global dimming
            NvU32 colorimetry : 1;                 //!< If set indicates sink supports DCI P3 colorimetry, REc709 otherwise
            NvU32 supports_backlight_control : 2;  //!< This is set when sink is using lowlatency interface and can control its backlight.
            NvU32 backlt_min_luma : 2;             //!< It is the level for Backlt min luminance value.
            NvU32 interface_supported_by_sink : 2; //!< Indicates the interface (standard or low latency) supported by the sink.
            NvU32 supports_10b_12b_444 : 2;        //!< It is set when interface supported is low latency, it tells whether it supports 10 bit or 12 bit RGB 4:4:4 or YCbCr 4:4:4 or both.
            NvU32 reserved : 9;                    //!< Should be set to zero
                                                   //!< All values below are encoded use DolbyVisionHDMITransmissionSpecification document to decode
            NvU16 target_min_luminance;            //!< Represents min luminance level of Sink
            NvU16 target_max_luminance;            //!< Represents max luminance level of sink
            NvU16 cc_red_x;                        //!< Red primary chromaticity coordinate x
            NvU16 cc_red_y;                        //!< Red primary chromaticity coordinate y
            NvU16 cc_green_x;                      //!< Green primary chromaticity coordinate x
            NvU16 cc_green_y;                      //!< Green primary chromaticity coordinate Y
            NvU16 cc_blue_x;                       //!< Blue primary chromaticity coordinate x
            NvU16 cc_blue_y;                       //!< Blue primary chromaticity coordinate y
            NvU16 cc_white_x;                      //!< White primary chromaticity coordinate x
            NvU16 cc_white_y;                      //!< White primary chromaticity coordinate y
        } dv_static_metadata;

    } NV_HDR_CAPABILITIES_V2;

#define NV_HDR_CAPABILITIES_VER1 MAKE_NVAPI_VERSION(NV_HDR_CAPABILITIES_V1, 1)

#define NV_HDR_CAPABILITIES_VER2 MAKE_NVAPI_VERSION(NV_HDR_CAPABILITIES_V2, 2)

#define NV_HDR_CAPABILITIES_VER NV_HDR_CAPABILITIES_VER2

    typedef NV_HDR_CAPABILITIES_V2 NV_HDR_CAPABILITIES;

    //! \ingroup dispcontrol
    //! @{
    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_Disp_GetHdrCapabilities
    //
    //! \fn NvAPI_Disp_GetHdrCapabilities(NvU32 displayId, NV_HDR_CAPABILITIES  *pHdrCapabilities)
    //! DESCRIPTION:    This API gets High Dynamic Range (HDR) capabilities of the display.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId           Monitor Identifier
    //! \param [in,out] pHdrCapabilities    display's HDR capabilities
    //!
    //! \return    This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!            specific meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Disp_GetHdrCapabilities(__in NvU32 displayId, __inout NV_HDR_CAPABILITIES *pHdrCapabilities);

    //! @}

    typedef enum
    {
        NV_HDR_CMD_GET = 0, //!< Get current HDR output configuration
        NV_HDR_CMD_SET = 1  //!< Set HDR output configuration
    } NV_HDR_CMD;

    typedef enum
    {
        // Official production-ready HDR modes
        NV_HDR_MODE_OFF = 0,  //!< Turn off HDR
        NV_HDR_MODE_UHDA = 2, //!< Source: CCCS [a.k.a FP16 scRGB, linear, sRGB primaries, [-65504,0, 65504] range, RGB(1,1,1) = 80nits]  Output : UHDA HDR [a.k.a HDR10, RGB/YCC 10/12bpc ST2084(PQ) EOTF RGB(1,1,1) = 10000 nits, Rec2020 color primaries, ST2086 static HDR metadata]. This is the only supported production HDR mode.

        // Experimental
        NV_HDR_MODE_UHDA_PASSTHROUGH = 5, //!< Experimental mode only, not for production! Source: HDR10 RGB 10bpc Output: HDR10 RGB 10 bpc - signal UHDA HDR mode (PQ + Rec2020) to the sink but send source pixel values unmodified (no PQ or Rec2020 conversions) - assumes source is already in HDR10 format.
        NV_HDR_MODE_DOLBY_VISION = 7,     //!< Experimental mode only, not for production! Source: RGB8 Dolby Vision encoded (12 bpc YCbCr422 packed into RGB8) Output: Dolby Vision encoded : Application is to encoded frames in DV format and embed DV dynamic metadata as described in Dolby Vision specification.

        // Unsupported/obsolete HDR modes
        NV_HDR_MODE_EDR = 3,     //!< Do not use! Internal test mode only, to be removed. Source: CCCS (a.k.a FP16 scRGB) Output : EDR (Extended Dynamic Range) - HDR content is tonemapped and gamut mapped to output on regular SDR display set to max luminance ( ~300 nits ).
        NV_HDR_MODE_SDR = 4,     //!< Do not use! Internal test mode only, to be removed. Source: any Output: SDR (Standard Dynamic Range), we continuously send SDR EOTF InfoFrame signaling, HDMI compliance testing.
        NV_HDR_MODE_UHDA_NB = 6, //!< Do not use! Internal test mode only, to be removed. Source: CCCS (a.k.a FP16 scRGB) Output : notebook HDR
        NV_HDR_MODE_UHDBD = 2    //!< Do not use! Obsolete, to be removed. NV_HDR_MODE_UHDBD == NV_HDR_MODE_UHDA, reflects obsolete pre-UHDA naming convention.

    } NV_HDR_MODE;

    typedef struct _NV_HDR_COLOR_DATA_V1
    {
        NvU32 version;                                                  //!< Version of this structure
        NV_HDR_CMD cmd;                                                 //!< Command get/set
        NV_HDR_MODE hdrMode;                                            //!< HDR mode
        NV_STATIC_METADATA_DESCRIPTOR_ID static_metadata_descriptor_id; //!< Static Metadata Descriptor Id (0 for static metadata type 1)

        struct //!< Static Metadata Descriptor Type 1, CEA-861.3, SMPTE ST2086
        {
            NvU16 displayPrimary_x0; //!< x coordinate of color primary 0 (e.g. Red) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y0; //!< y coordinate of color primary 0 (e.g. Red) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayPrimary_x1; //!< x coordinate of color primary 1 (e.g. Green) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y1; //!< y coordinate of color primary 1 (e.g. Green) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayPrimary_x2; //!< x coordinate of color primary 2 (e.g. Blue) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y2; //!< y coordinate of color primary 2 (e.g. Blue) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayWhitePoint_x; //!< x coordinate of white point of mastering display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayWhitePoint_y; //!< y coordinate of white point of mastering display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 max_display_mastering_luminance; //!< Maximum display mastering luminance ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
            NvU16 min_display_mastering_luminance; //!< Minimum display mastering luminance ([0x0001-0xFFFF] = [1.0 - 6.55350] cd/m^2)

            NvU16 max_content_light_level;       //!< Maximum Content Light level (MaxCLL) ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
            NvU16 max_frame_average_light_level; //!< Maximum Frame-Average Light Level (MaxFALL) ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
        } mastering_display_data;
    } NV_HDR_COLOR_DATA_V1;

    typedef struct _NV_HDR_COLOR_DATA_V2
    {
        NvU32 version;                                                  //!< Version of this structure
        NV_HDR_CMD cmd;                                                 //!< Command get/set
        NV_HDR_MODE hdrMode;                                            //!< HDR mode
        NV_STATIC_METADATA_DESCRIPTOR_ID static_metadata_descriptor_id; //!< Static Metadata Descriptor Id (0 for static metadata type 1)

        struct //!< Static Metadata Descriptor Type 1, CEA-861.3, SMPTE ST2086
        {
            NvU16 displayPrimary_x0; //!< x coordinate of color primary 0 (e.g. Red) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y0; //!< y coordinate of color primary 0 (e.g. Red) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayPrimary_x1; //!< x coordinate of color primary 1 (e.g. Green) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y1; //!< y coordinate of color primary 1 (e.g. Green) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayPrimary_x2; //!< x coordinate of color primary 2 (e.g. Blue) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayPrimary_y2; //!< y coordinate of color primary 2 (e.g. Blue) of mastering display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 displayWhitePoint_x; //!< x coordinate of white point of mastering display ([0x0000-0xC350] = [0.0 - 1.0])
            NvU16 displayWhitePoint_y; //!< y coordinate of white point of mastering display ([0x0000-0xC350] = [0.0 - 1.0])

            NvU16 max_display_mastering_luminance; //!< Maximum display mastering luminance ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
            NvU16 min_display_mastering_luminance; //!< Minimum display mastering luminance ([0x0001-0xFFFF] = [1.0 - 6.55350] cd/m^2)

            NvU16 max_content_light_level;       //!< Maximum Content Light level (MaxCLL) ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
            NvU16 max_frame_average_light_level; //!< Maximum Frame-Average Light Level (MaxFALL) ([0x0001-0xFFFF] = [1.0 - 65535.0] cd/m^2)
        } mastering_display_data;

        NV_COLOR_FORMAT hdrColorFormat;   //!< Optional, One of NV_COLOR_FORMAT enum values, if set it will apply requested color format for HDR session
        NV_DYNAMIC_RANGE hdrDynamicRange; //!< Optional, One of NV_DYNAMIC_RANGE enum values, if set it will apply requested dynamic range for HDR session
        NV_BPC hdrBpc;                    //!< Optional, One of NV_BPC enum values, if set it will apply requested color depth
                                          //!< Dolby Vision mode: DV supports specific combinations of colorformat, dynamic range and bpc. Please refer Dolby Vision specification.
                                          //!<                    If invalid or no combination is passed driver will force default combination of RGB format + full range + 8bpc.
                                          //!< HDR mode: These fields are ignored in hdr mode
    } NV_HDR_COLOR_DATA_V2;

#define NV_HDR_COLOR_DATA_VER1 MAKE_NVAPI_VERSION(NV_HDR_COLOR_DATA_V1, 1)

#define NV_HDR_COLOR_DATA_VER2 MAKE_NVAPI_VERSION(NV_HDR_COLOR_DATA_V2, 2)


#ifndef NV_HDR_COLOR_DATA_VER
#define NV_HDR_COLOR_DATA_VER NV_HDR_COLOR_DATA_VER2

    typedef NV_HDR_COLOR_DATA_V2 NV_HDR_COLOR_DATA;
#endif

    //! \ingroup dispcontrol
    //! @{
    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_Disp_HdrColorControl
    //
    //! \fn NvAPI_Disp_HdrColorControl(NvU32 displayId, NV_HDR_COLOR_DATA *pHdrColorData)
    //! DESCRIPTION:    This API configures High Dynamic Range (HDR) and Extended Dynamic Range (EDR) output.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId         Monitor Identifier
    //! \param [in,out] pHdrColorData     HDR configuration data
    //!
    //! \return    This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!            specific meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Disp_HdrColorControl(__in NvU32 displayId, __inout NV_HDR_COLOR_DATA *pHdrColorData);

    //! @}

    //! \ingroup dispcontrol
    //! Used in NvAPI_DISP_GetTiming().
    typedef struct
    {
        NvU32 isInterlaced : 4; //!< To retrieve interlaced/progressive timing
        NvU32 reserved0 : 12;
        union
        {
            NvU32 tvFormat : 8; //!< The actual analog HD/SDTV format. Used when the timing type is
                                //!  NV_TIMING_OVERRIDE_ANALOG_TV and width==height==rr==0.
            NvU32 ceaId : 8;    //!< The EIA/CEA 861B/D predefined short timing descriptor ID.
                                //!  Used when the timing type is NV_TIMING_OVERRIDE_EIA861
                                //!  and width==height==rr==0.
            NvU32 nvPsfId : 8;  //!< The NV predefined PsF format Id.
                                //!  Used when the timing type is NV_TIMING_OVERRIDE_NV_PREDEFINED.
        };
        NvU32 scaling : 8; //!< Define preferred scaling
    } NV_TIMING_FLAG;

    //! \ingroup dispcontrol
    //! Used in NvAPI_DISP_GetTiming().
    typedef struct _NV_TIMING_INPUT
    {
        NvU32 version; //!< (IN)     structure version

        NvU32 width;  //!< Visible horizontal size
        NvU32 height; //!< Visible vertical size
        float rr;     //!< Timing refresh rate

        NV_TIMING_FLAG flag; //!< Flag containing additional info for timing calculation.

        NV_TIMING_OVERRIDE type; //!< Timing type(formula) to use for calculating the timing
    } NV_TIMING_INPUT;

#define NV_TIMING_INPUT_VER MAKE_NVAPI_VERSION(NV_TIMING_INPUT, 1)


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_GetTiming
    //
    //! DESCRIPTION:  This function calculates the timing from the visible width/height/refresh-rate and timing type info.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //!
    //! \param [in]   displayId     Display ID of the display.
    //! \param [in]   timingInput   Inputs used for calculating the timing.
    //! \param [out]  pTiming       Pointer to the NV_TIMING structure.
    //!
    //! \return        This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!                specific meaning for this API, they are listed below.
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_GetTiming(__in NvU32 displayId, __in NV_TIMING_INPUT *timingInput, __out NV_TIMING *pTiming);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_GetMonitorCapabilities
    //
    //! \fn NvAPI_DISP_GetMonitorCapabilities(NvU32 displayId, NV_MONITOR_CAPABILITIES *pMonitorCapabilities)
    //! DESCRIPTION:     This API returns the Monitor capabilities
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      displayId                Monitor Identifier
    //! \param [out]     pMonitorCapabilities     The monitor support info
    //!
    //! \return ::NVAPI_OK,
    //!         ::NVAPI_ERROR,
    //!         ::NVAPI_INVALID_ARGUMENT
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup dispcontrol
    //! @{

    //! HDMI-related and extended CAPs
    typedef enum
    {
        // hdmi related caps
        NV_MONITOR_CAPS_TYPE_HDMI_VSDB = 0x1000,
        NV_MONITOR_CAPS_TYPE_HDMI_VCDB = 0x1001,
    } NV_MONITOR_CAPS_TYPE;

    typedef struct _NV_MONITOR_CAPS_VCDB
    {
        NvU8 quantizationRangeYcc : 1;
        NvU8 quantizationRangeRgb : 1;
        NvU8 scanInfoPreferredVideoFormat : 2;
        NvU8 scanInfoITVideoFormats : 2;
        NvU8 scanInfoCEVideoFormats : 2;
    } NV_MONITOR_CAPS_VCDB;

    //! See NvAPI_DISP_GetMonitorCapabilities().
    typedef struct _NV_MONITOR_CAPS_VSDB
    {
        // byte 1
        NvU8 sourcePhysicalAddressB : 4; //!< Byte 1
        NvU8 sourcePhysicalAddressA : 4; //!< Byte 1
        // byte 2
        NvU8 sourcePhysicalAddressD : 4; //!< Byte 2
        NvU8 sourcePhysicalAddressC : 4; //!< Byte 2
        // byte 3
        NvU8 supportDualDviOperation : 1;  //!< Byte 3
        NvU8 reserved6 : 2;                //!< Byte 3
        NvU8 supportDeepColorYCbCr444 : 1; //!< Byte 3
        NvU8 supportDeepColor30bits : 1;   //!< Byte 3
        NvU8 supportDeepColor36bits : 1;   //!< Byte 3
        NvU8 supportDeepColor48bits : 1;   //!< Byte 3
        NvU8 supportAI : 1;                //!< Byte 3
        // byte 4
        NvU8 maxTmdsClock; //!< Bye 4
        // byte 5
        NvU8 cnc0SupportGraphicsTextContent : 1; //!< Byte 5
        NvU8 cnc1SupportPhotoContent : 1;        //!< Byte 5
        NvU8 cnc2SupportCinemaContent : 1;       //!< Byte 5
        NvU8 cnc3SupportGameContent : 1;         //!< Byte 5
        NvU8 reserved8 : 1;                      //!< Byte 5
        NvU8 hasVicEntries : 1;                  //!< Byte 5
        NvU8 hasInterlacedLatencyField : 1;      //!< Byte 5
        NvU8 hasLatencyField : 1;                //!< Byte 5
        // byte 6
        NvU8 videoLatency; //!< Byte 6
        // byte 7
        NvU8 audioLatency; //!< Byte 7
        // byte 8
        NvU8 interlacedVideoLatency; //!< Byte 8
        // byte 9
        NvU8 interlacedAudioLatency; //!< Byte 9
        // byte 10
        NvU8 reserved13 : 7;   //!< Byte 10
        NvU8 has3dEntries : 1; //!< Byte 10
        // byte 11
        NvU8 hdmi3dLength : 5;  //!< Byte 11
        NvU8 hdmiVicLength : 3; //!< Byte 11
        // Remaining bytes
        NvU8 hdmi_vic[7]; //!< Keeping maximum length for 3 bits
        NvU8 hdmi_3d[31]; //!< Keeping maximum length for 5 bits
    } NV_MONITOR_CAPS_VSDB;

    typedef struct _NV_MONITOR_CAPS_GENERIC
    {
        NvU8 supportVRR : 1;   //!< monitor supports variable refresh rate. Valid for NV_MONITOR_CAPS_TYPE_GENERIC only.
        NvU8 supportULMB : 1;  //!< monitor supports ULMB with variable refresh rate. Valid for NV_MONITOR_CAPS_TYPE_GENERIC only.
        NvU8 isTrueGsync : 1;  //!< whether the monitor is actually GSYNC or adaptive sync monitor : 0 for adaptive sync.
        NvU8 isRLACapable : 1; //!< whether monitor supports RLA
        NvU8 reserved : 4;
    } NV_MONITOR_CAPS_GENERIC;

    //! See NvAPI_DISP_GetMonitorCapabilities().
    typedef struct _NV_MONITOR_CAPABILITIES_V1
    {
        NvU32 version;
        NvU16 size;
        NvU32 infoType;
        NvU32 connectorType;   //!< Out: VGA, TV, DVI, HDMI, DP
        NvU8 bIsValidInfo : 1; //!< Boolean : Returns invalid if requested info is not present such as VCDB not present
        union
        {
            NV_MONITOR_CAPS_VSDB vsdb;
            NV_MONITOR_CAPS_VCDB vcdb;
            NV_MONITOR_CAPS_GENERIC caps;
        } data;
    } NV_MONITOR_CAPABILITIES_V1;

    typedef NV_MONITOR_CAPABILITIES_V1 NV_MONITOR_CAPABILITIES;

//! Macro for constructing the version field of ::NV_MONITOR_CAPABILITIES_V1
#define NV_MONITOR_CAPABILITIES_VER1 MAKE_NVAPI_VERSION(NV_MONITOR_CAPABILITIES_V1, 1)

#define NV_MONITOR_CAPABILITIES_VER NV_MONITOR_CAPABILITIES_VER1


    //! @}

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! \ingroup dispcontrol
    NVAPI_INTERFACE NvAPI_DISP_GetMonitorCapabilities(__in NvU32 displayId, __inout NV_MONITOR_CAPABILITIES *pMonitorCapabilities);

    //! \ingroup dispcontrol
    typedef struct _NV_MONITOR_COLOR_DATA
    {
        NvU32 version;
        // We are only supporting DP monitors for now. We need to extend this to HDMI panels as well
        NV_DP_COLOR_FORMAT colorFormat; //!< One of the supported color formats
        NV_DP_BPC backendBitDepths;     //!< One of the supported bit depths
    } NV_MONITOR_COLOR_CAPS_V1;

    typedef NV_MONITOR_COLOR_CAPS_V1 NV_MONITOR_COLOR_CAPS;

//! \ingroup dispcontrol
#define NV_MONITOR_COLOR_CAPS_VER1 MAKE_NVAPI_VERSION(NV_MONITOR_COLOR_CAPS_V1, 1)

#define NV_MONITOR_COLOR_CAPS_VER NV_MONITOR_COLOR_CAPS_VER1


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_GetMonitorColorCapabilities
    //
    //! DESCRIPTION:    This API returns all the color formats and bit depth values supported by a given DP monitor.
    //!
    //! USAGE:         Sequence of calls which caller should make to get the information.
    //!                1. First call NvAPI_DISP_GetMonitorColorCapabilities() with pMonitorColorCapabilities as NULL to get the count.
    //!                2. Allocate memory for color caps(NV_MONITOR_COLOR_CAPS) array.
    //!                3. Call NvAPI_DISP_GetMonitorColorCapabilities() again with the pointer to the memory allocated to get all the
    //!                   color capabilities.
    //!
    //!                Note :
    //!                1. pColorCapsCount should never be NULL, else the API will fail with NVAPI_INVALID_ARGUMENT.
    //!                2. *pColorCapsCount returned from the API will always be the actual count in any/every call.
    //!                3. Memory size to be allocated should be (*pColorCapsCount * sizeof(NV_MONITOR_COLOR_CAPS)).
    //!                4. If the memory allocated is less than what is required to return all the timings, this API will return the
    //!                   amount of information which can fit in user provided buffer and API will return NVAPI_INSUFFICIENT_BUFFER.
    //!                5. If the caller specifies a greater value for *pColorCapsCount in second call to NvAPI_DISP_GetMonitorColorCapabilities()
    //!                   than what was returned from first call, the API will return only the actual number of elements in the color
    //!                   capabilities array and the extra buffer will remain unused.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      displayId                  Monitor Identifier
    //! \param [in, out] pMonitorColorCapabilities  The monitor color capabilities information
    //! \param [in, out] pColorCapsCount            - During input, the number of elements allocated for the pMonitorColorCapabilities pointer
    //!                                             - During output, the actual number of color data elements the monitor supports
    //!
    //! \return    This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!            specific meaning for this API, they are listed below.
    //!
    //! \retval         NVAPI_INSUFFICIENT_BUFFER   The input buffer size is not sufficient to hold the total contents. In this case
    //!                                             *pColorCapsCount will hold the required amount of elements.
    //! \retval         NVAPI_INVALID_DISPLAY_ID    The input monitor is either not connected or is not a DP panel.
    //!
    //! \ingroup dispcontrol
    //!
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_GetMonitorColorCapabilities(__in NvU32 displayId, __inout_ecount_part_opt(*pColorCapsCount, *pColorCapsCount) NV_MONITOR_COLOR_CAPS *pMonitorColorCapabilities, __inout NvU32 *pColorCapsCount);

    //! \ingroup dispcontrol
    //! Used in NvAPI_DISP_EnumCustomDisplay() and NvAPI_DISP_TryCustomDisplay().
    typedef struct
    {
        NvU32 version;

        // the source mode information
        NvU32 width;           //!< Source surface(source mode) width
        NvU32 height;          //!< Source surface(source mode) height
        NvU32 depth;           //!< Source surface color depth."0" means all 8/16/32bpp
        NV_FORMAT colorFormat; //!< Color format (optional)

        NV_VIEWPORTF srcPartition; //!< For multimon support, should be set to (0,0,1.0,1.0) for now.

        float xRatio; //!< Horizontal scaling ratio
        float yRatio; //!< Vertical scaling ratio

        NV_TIMING timing;        //!< Timing used to program TMDS/DAC/LVDS/HDMI/TVEncoder, etc.
        NvU32 hwModeSetOnly : 1; //!< If set, it means a hardware modeset without OS update

    } NV_CUSTOM_DISPLAY;

//! \ingroup dispcontrol
//! Used in NV_CUSTOM_DISPLAY.
#define NV_CUSTOM_DISPLAY_VER MAKE_NVAPI_VERSION(NV_CUSTOM_DISPLAY, 1)


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_EnumCustomDisplay
    //
    //! DESCRIPTION:    This API enumerates the custom timing specified by the enum index.
    //!                 The client should keep enumerating until it returns NVAPI_END_ENUMERATION.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]     displayId   Dispaly ID of the display.
    //! \param [in]     index       Enum index
    //! \param [inout]  pCustDisp   Pointer to the NV_CUSTOM_DISPLAY structure
    //!
    //! \return        This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!                specific meaning for this API, they are listed below.
    //! \retval        NVAPI_INVALID_DISPLAY_ID:   Custom Timing is not supported on the Display, whose display id is passed
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_EnumCustomDisplay(__in NvU32 displayId, __in NvU32 index, __inout NV_CUSTOM_DISPLAY *pCustDisp);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_TryCustomDisplay
    //
    //! DESCRIPTION:    This API is used to set up a custom display without saving the configuration on multiple displays.
    //!
    //! \note
    //!  All the members of srcPartition, present in NV_CUSTOM_DISPLAY structure, should have their range in (0.0,1.0).
    //!  In clone mode the timings can applied to both the target monitors but only one target at a time. \n
    //!  For the secondary target the applied timings works under the following conditions:
    //!  - If the secondary monitor EDID supports the selected timing, OR
    //!  - If the selected custom timings can be scaled by the secondary monitor for the selected source resolution on the primary, OR
    //!  - If the selected custom timings matches the existing source resolution on the primary.
    //!  Setting up a custom display on non-active but connected monitors is supported only for Win7 and above.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //!
    //! \param [in]    pDisplayIds    Array of the target display Dispaly IDs - See \ref handles.
    //! \param [in]    count          Total number of the incoming Display IDs and corresponding NV_CUSTOM_DISPLAY structure. This is for the multi-head support.
    //! \param [in]    pCustDisp      Pointer to the NV_CUSTOM_DISPLAY structure array.
    //!
    //! \return        This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!                specific meaning for this API, they are listed below.
    //! \retval        NVAPI_INVALID_DISPLAY_ID:   Custom Timing is not supported on the Display, whose display id is passed
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_TryCustomDisplay(__in_ecount(count) NvU32 *pDisplayIds, __in NvU32 count, __in_ecount(count) NV_CUSTOM_DISPLAY *pCustDisp);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_DeleteCustomDisplay
    //
    //! DESCRIPTION:    This function deletes the custom display configuration, specified from the registry for  all the displays whose display IDs are passed.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //!
    //! \param [in]     pDisplayIds     Array of Dispaly IDs on which custom display configuration is to be saved.
    //! \param [in]     count           Total number of the incoming Dispaly IDs. This is for the multi-head support.
    //! \param [in]     pCustDisp       Pointer to the NV_CUSTOM_DISPLAY structure
    //!
    //! \return        This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!                specific meaning for this API, they are listed below.
    //! \retval        NVAPI_INVALID_DISPLAY_ID:   Custom Timing is not supported on the Display, whose display id is passed
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_DeleteCustomDisplay(__in_ecount(count) NvU32 *pDisplayIds, __in NvU32 count, __in NV_CUSTOM_DISPLAY *pCustDisp);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_SaveCustomDisplay
    //
    //! DESCRIPTION:    This function saves the current hardware display configuration on the specified Display IDs as a custom display configuration.
    //!                 This function should be called right after NvAPI_DISP_TryCustomDisplay() to save the custom display from the current
    //!                 hardware context. This function will not do anything if the custom display configuration is not tested on the hardware.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //!
    //! \param [in]     pDisplayIds         Array of Dispaly IDs on which custom display configuration is to be saved.
    //! \param [in]     count               Total number of the incoming Dispaly IDs. This is for the multi-head support.
    //! \param [in]     isThisOutputIdOnly  If set, the saved custom display will only be applied on the monitor with the same outputId (see \ref handles).
    //! \param [in]     isThisMonitorIdOnly If set, the saved custom display will only be applied on the monitor with the same EDID ID or
    //!                                     the same TV connector in case of analog TV.
    //!
    //! \return        This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!                specific meaning for this API, they are listed below.
    //! \retval        NVAPI_INVALID_DISPLAY_ID:   Custom Timing is not supported on the Display, whose display id is passed
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_SaveCustomDisplay(__in_ecount(count) NvU32 *pDisplayIds, __in NvU32 count, __in NvU32 isThisOutputIdOnly, __in NvU32 isThisMonitorIdOnly);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_RevertCustomDisplayTrial
    //
    //! DESCRIPTION:    This API is used to restore the display configuration, that was changed by calling NvAPI_DISP_TryCustomDisplay(). This function
    //!                 must be called only after a custom display configuration is tested on the hardware, using NvAPI_DISP_TryCustomDisplay(),
    //!                 otherwise no action is taken. On Vista, NvAPI_DISP_RevertCustomDisplayTrial should be called with an active display that
    //!                 was affected during the NvAPI_DISP_TryCustomDisplay() call, per GPU.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //!
    //! \param [in]    pDisplayIds   Pointer to display Id, of an active display.
    //! \param [in]    count         Total number of incoming Display IDs. For future use only. Currently it is expected to be passed as 1.
    //!
    //! \return        This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!                specific meaning for this API, they are listed below.
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_RevertCustomDisplayTrial(__in_ecount(count) NvU32 *pDisplayIds, __in NvU32 count);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_GetView
    //
    //! This API lets caller retrieve the target display arrangement for selected source display handle.
    //! \note Display PATH with this API is limited to single GPU. DUALVIEW across GPUs will be returned as STANDARD VIEW.
    //!       Use NvAPI_SYS_GetDisplayTopologies() to query views across GPUs.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_GetDisplayConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 85
    //!
    //!  \param [in]     hNvDisplay             NVIDIA Display selection. It can be #NVAPI_DEFAULT_HANDLE or a handle enumerated from
    //!                                         NvAPI_EnumNVidiaDisplayHandle().
    //!  \param [out]    pTargets               User allocated storage to retrieve an array of  NV_VIEW_TARGET_INFO. Can be NULL to retrieve
    //!                                         the targetCount.
    //!  \param [in,out] targetMaskCount        Count of target device mask specified in pTargetMask.
    //!  \param [out]    targetView             Target view selected from NV_TARGET_VIEW_MODE.
    //!
    //!  \retval         NVAPI_OK               Completed request
    //!  \retval         NVAPI_ERROR            Miscellaneous error occurred
    //!  \retval         NVAPI_INVALID_ARGUMENT Invalid input parameter.
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_GetDisplayConfig.")
        NVAPI_INTERFACE NvAPI_GetView(NvDisplayHandle hNvDisplay, NV_VIEW_TARGET_INFO *pTargets, NvU32 *pTargetMaskCount, NV_TARGET_VIEW_MODE *pTargetView);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_GetViewEx
    //
    //! DESCRIPTION:    This API lets caller retrieve the target display arrangement for selected source display handle.
    //!                 \note Display PATH with this API is limited to single GPU. DUALVIEW across GPUs will be returned as STANDARD VIEW.
    //!                       Use NvAPI_SYS_GetDisplayTopologies() to query views across GPUs.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_GetDisplayConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 165
    //!
    //! \param [in]     hNvDisplay       NVIDIA Display selection. #NVAPI_DEFAULT_HANDLE is not allowed, it has to be a handle enumerated with
    //!                                  NvAPI_EnumNVidiaDisplayHandle().
    //! \param [in,out] pPathInfo        Count field should be set to NVAPI_MAX_DISPLAY_PATH. Can be NULL to retrieve just the pathCount.
    //! \param [in,out] pPathCount       Number of elements in array pPathInfo->path.
    //! \param [out]    pTargetViewMode  Display view selected from NV_TARGET_VIEW_MODE.
    //!
    //! \retval         NVAPI_OK                      Completed request
    //! \retval         NVAPI_API_NOT_INTIALIZED      NVAPI not initialized
    //! \retval         NVAPI_ERROR                   Miscellaneous error occurred
    //! \retval         NVAPI_INVALID_ARGUMENT        Invalid input parameter.
    //! \retval         NVAPI_EXPECTED_DISPLAY_HANDLE hNvDisplay is not a valid display handle.
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_DISP_GetDisplayConfig.")
        NVAPI_INTERFACE NvAPI_GetViewEx(NvDisplayHandle hNvDisplay, NV_DISPLAY_PATH_INFO *pPathInfo, NvU32 *pPathCount, NV_TARGET_VIEW_MODE *pTargetViewMode);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_GetSupportedViews
    //
    //!  This API lets caller enumerate all the supported NVIDIA display views - nView and Dualview modes.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 85
    //!
    //!  \param [in]     hNvDisplay             NVIDIA Display selection. It can be #NVAPI_DEFAULT_HANDLE or a handle enumerated from
    //!                                         NvAPI_EnumNVidiaDisplayHandle().
    //!  \param [out]    pTargetViews           Array of supported views. Can be NULL to retrieve the pViewCount first.
    //!  \param [in,out] pViewCount             Count of supported views.
    //!
    //!  \retval         NVAPI_OK               Completed request
    //!  \retval         NVAPI_ERROR            Miscellaneous error occurred
    //!  \retval         NVAPI_INVALID_ARGUMENT Invalid input parameter.
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetSupportedViews(NvDisplayHandle hNvDisplay, NV_TARGET_VIEW_MODE *pTargetViews, NvU32 *pViewCount);

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_DISP_GetDisplayIdByDisplayName
    //
    //! DESCRIPTION:     This API retrieves the Display Id of a given display by
    //!                  display name. The display must be active to retrieve the
    //!                  displayId. In the case of clone mode or Surround gaming,
    //!                  the primary or top-left display will be returned.
    //!
    //! \param [in]     displayName  Name of display (Eg: "\\DISPLAY1" to
    //!                              retrieve the displayId for.
    //! \param [out]    displayId    Display ID of the requested display.
    //!
    //! retval ::NVAPI_OK:                          Capabilties have been returned.
    //! retval ::NVAPI_INVALID_ARGUMENT:            One or more args passed in are invalid.
    //! retval ::NVAPI_API_NOT_INTIALIZED:          The NvAPI API needs to be initialized first
    //! retval ::NVAPI_NO_IMPLEMENTATION:           This entrypoint not available
    //! retval ::NVAPI_ERROR:                       Miscellaneous error occurred
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_GetDisplayIdByDisplayName(const char *displayName, NvU32 *displayId);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_GetDisplayConfig
    //
    //! DESCRIPTION:     This API lets caller retrieve the current global display
    //!                  configuration.
    //!       USAGE:     The caller might have to call this three times to fetch all the required configuration details as follows:
    //!                  First  Pass: Caller should Call NvAPI_DISP_GetDisplayConfig() with pathInfo set to NULL to fetch pathInfoCount.
    //!                  Second Pass: Allocate memory for pathInfo with respect to the number of pathInfoCount(from First Pass) to fetch
    //!                               targetInfoCount. If sourceModeInfo is needed allocate memory or it can be initialized to NULL.
    //!             Third  Pass(Optional, only required if target information is required): Allocate memory for targetInfo with respect
    //!                               to number of targetInfoCount(from Second Pass).
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in,out]  pathInfoCount    Number of elements in pathInfo array, returns number of valid topologies, this cannot be null.
    //! \param [in,out]  pathInfo         Array of path information
    //!
    //! \return    This API can return any of the error codes enumerated in #NvAPI_Status. If there are return error codes with
    //!            specific meaning for this API, they are listed below.
    //!
    //! \retval    NVAPI_INVALID_ARGUMENT  -   Invalid input parameter. Following can be the reason for this return value:
    //!                                        -# pathInfoCount is NULL.
    //!                                        -# *pathInfoCount is 0 and pathInfo is not NULL.
    //!                                        -# *pathInfoCount is not 0 and pathInfo is NULL.
    //! \retval    NVAPI_DEVICE_BUSY       -   ModeSet has not yet completed. Please wait and call it again.
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_GetDisplayConfig(__inout NvU32 *pathInfoCount, __out_ecount_full_opt(*pathInfoCount) NV_DISPLAYCONFIG_PATH_INFO *pathInfo);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_SetDisplayConfig
    //
    //
    //! DESCRIPTION:     This API lets caller apply a global display configuration
    //!                  across multiple GPUs.
    //!
    //!                  If all sourceIds are zero, then NvAPI will pick up sourceId's based on the following criteria :
    //!                  - If user provides sourceModeInfo then we are trying to assign 0th sourceId always to GDIPrimary.
    //!                     This is needed since active windows always moves along with 0th sourceId.
    //!                  - For rest of the paths, we are incrementally assigning the sourceId per adapter basis.
    //!                  - If user doesn't provide sourceModeInfo then NVAPI just picks up some default sourceId's in incremental order.
    //!                  Note : NVAPI will not intelligently choose the sourceIDs for any configs that does not need a modeset.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      pathInfoCount   Number of supplied elements in pathInfo
    //! \param [in]      pathInfo        Array of path information
    //! \param [in]      flags           Flags for applying settings
    //!
    //! \retval ::NVAPI_OK - completed request
    //! \retval ::NVAPI_API_NOT_INTIALIZED - NVAPI not initialized
    //! \retval ::NVAPI_ERROR - miscellaneous error occurred
    //! \retval ::NVAPI_INVALID_ARGUMENT - Invalid input parameter.
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_SetDisplayConfig(__in NvU32 pathInfoCount, __in_ecount(pathInfoCount) NV_DISPLAYCONFIG_PATH_INFO *pathInfo, __in NvU32 flags);

    typedef struct _NV_GET_ADAPTIVE_SYNC_DATA_V1
    {
        NvU32 version;                    //!< [in]    structure version
        NvU32 maxFrameInterval;           //!< [out]   maximum frame interval in micro seconds as set previously using NvAPI_DISP_SetAdaptiveSyncData function.
                                          //!<         If default values from EDID are used, this parameter returns 0.
        NvU32 bDisableAdaptiveSync : 1;   //!< [out]   Indicates if adaptive sync is disabled on the display.
        NvU32 bDisableFrameSplitting : 1; //!< [out]   Indicates if frame splitting is disabled on the display.
        NvU32 reserved : 30;              //!< reserved for future use.
        NvU32 lastFlipRefreshCount;       //!< [out]   Number of times the last flip was shown on the screen
        NvU64 lastFlipTimeStamp;          //!< [out]   Timestamp for the lastest flip on the screen
        NvU32 reservedEx[4];              //!< reserved for future use.
    } NV_GET_ADAPTIVE_SYNC_DATA_V1;

#define NV_GET_ADAPTIVE_SYNC_DATA_VER1 MAKE_NVAPI_VERSION(NV_GET_ADAPTIVE_SYNC_DATA_V1, 1)

#define NV_GET_ADAPTIVE_SYNC_DATA_VER NV_GET_ADAPTIVE_SYNC_DATA_VER1


    typedef NV_GET_ADAPTIVE_SYNC_DATA_V1 NV_GET_ADAPTIVE_SYNC_DATA;

    ///////////////////////////////////////////////////////////////////////////////
    //
    //! \fn NvAPI_DISP_GetAdaptiveSyncData(__in NvU32 displayId, __inout NV_GET_ADAPTIVE_SYNC_DATA *pAdaptiveSyncData)
    //! \code
    //! DESCRIPTION:    This function is used to get data for the Adaptive Sync Display.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \since Release: 415
    //!
    //! \param [in]       displayId            - display id of the display
    //! \param [inout]    pAdaptiveSyncData    - A pointer to NV_GET_ADAPTIVE_SYNC_DATA, containing the information about the values of parameters that are to be retrieved on given display.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status. If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    ///////////////////////////////////////////////////////////////////////////////
    //! \ingroup dispcontrol
    NVAPI_INTERFACE NvAPI_DISP_GetAdaptiveSyncData(__in NvU32 displayId, __inout NV_GET_ADAPTIVE_SYNC_DATA *pAdaptiveSyncData);

    typedef struct _NV_SET_ADAPTIVE_SYNC_DATA_V1
    {
        NvU32 version;                    //!< [in]    structure version
        NvU32 maxFrameInterval;           //!< [in]    maximum frame interval in micro seconds.
                                          //!<         If maxFrameInterval is send as 0, default values from EDID will be used.
        NvU32 bDisableAdaptiveSync : 1;   //!< [in]    Indicates if adaptive sync is disabled on the display.
        NvU32 bDisableFrameSplitting : 1; //!< [in]    Indicates if Frame Splitting should be disabled.
        NvU32 reserved : 30;              //!< reserved for future use.
        NvU32 reservedEx[7];              //!< reserved for future use.
    } NV_SET_ADAPTIVE_SYNC_DATA_V1;

#define NV_SET_ADAPTIVE_SYNC_DATA_VER1 MAKE_NVAPI_VERSION(NV_SET_ADAPTIVE_SYNC_DATA_V1, 1)

#define NV_SET_ADAPTIVE_SYNC_DATA_VER NV_SET_ADAPTIVE_SYNC_DATA_VER1


    typedef NV_SET_ADAPTIVE_SYNC_DATA_V1 NV_SET_ADAPTIVE_SYNC_DATA;

    ///////////////////////////////////////////////////////////////////////////////
    //
    //! \fn NvAPI_DISP_SetAdaptiveSyncData(__in NvU32 displayId, __in NV_SET_ADAPTIVE_SYNC_DATA *pAdaptiveSyncData)
    //! \code
    //! DESCRIPTION:    This function is used to set data for Adaptive Sync Display.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \since Release: 415
    //!
    //! \param [in]       displayId            - display id of the display
    //! \param [in]       pAdaptiveSyncData    - A pointer to NV_SET_ADAPTIVE_SYNC_DATA, containing the information about the values of parameters that are to be set on given display.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status. If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    ///////////////////////////////////////////////////////////////////////////////
    //! \ingroup dispcontrol
    NVAPI_INTERFACE NvAPI_DISP_SetAdaptiveSyncData(__in NvU32 displayId, __in NV_SET_ADAPTIVE_SYNC_DATA *pAdaptiveSyncData);

    typedef struct _NV_GET_VIRTUAL_REFRESH_RATE_DATA_V1
    {
        NvU32 version;         //!< [in]    structure version
        NvU32 frameIntervalUs; //!< [out]   frame interval in micro seconds if Virtual RR is currently applied
        NvU32 reservedEx[8];   //!< reserved for future use.
    } NV_GET_VIRTUAL_REFRESH_RATE_DATA_V1;

#define NV_GET_VIRTUAL_REFRESH_RATE_DATA_VER1 MAKE_NVAPI_VERSION(_NV_GET_VIRTUAL_REFRESH_RATE_DATA_V1, 1)

#define NV_GET_VIRTUAL_REFRESH_RATE_DATA_VER NV_GET_VIRTUAL_REFRESH_RATE_DATA_VER1


    typedef NV_GET_VIRTUAL_REFRESH_RATE_DATA_V1 NV_GET_VIRTUAL_REFRESH_RATE_DATA;

    ///////////////////////////////////////////////////////////////////////////////
    //
    //! \fn NvAPI_DISP_GetVirtualRefreshRateData(__in NvU32 displayId, __inout NV_GET_VIRTUAL_REFRESH_RATE_DATA *pVirtualRefreshRateData)
    //! \code
    //! DESCRIPTION:    This function is used to get Virtual Refresh Rate data for a VRR Capable Display.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \since Release: 510
    //!
    //! \param [in]       displayId                  - display id of the display
    //! \param [inout]    pVirtualRefreshRateData    - A pointer to NV_GET_VIRTUAL_REFRESH_RATE_DATA, containing the information about the values of parameters that are to be retrieved on given display.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status. If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    ///////////////////////////////////////////////////////////////////////////////
    //! \ingroup dispcontrol
    NVAPI_INTERFACE NvAPI_DISP_GetVirtualRefreshRateData(__in NvU32 displayId, __inout NV_GET_VIRTUAL_REFRESH_RATE_DATA *pVirtualRefreshRateData);

    typedef struct _NV_SET_VIRTUAL_REFRESH_RATE_DATA_V1
    {
        NvU32 version;         //!< [in]   structure version
        NvU32 frameIntervalUs; //!< [in]   frame interval in micro seconds if Virtual RR is currently applied
        NvU32 reservedEx[8];   //!< reserved for future use.
    } NV_SET_VIRTUAL_REFRESH_RATE_DATA_V1;

#define NV_SET_VIRTUAL_REFRESH_RATE_DATA_VER1 MAKE_NVAPI_VERSION(_NV_SET_VIRTUAL_REFRESH_RATE_DATA_V1, 1)

#define NV_SET_VIRTUAL_REFRESH_RATE_DATA_VER NV_SET_VIRTUAL_REFRESH_RATE_DATA_VER1


    typedef NV_SET_VIRTUAL_REFRESH_RATE_DATA_V1 NV_SET_VIRTUAL_REFRESH_RATE_DATA;

    ///////////////////////////////////////////////////////////////////////////////
    //
    //! \fn NvAPI_DISP_SetVirtualRefreshRateData(__in NvU32 displayId, __in NV_SET_VIRTUAL_REFRESH_RATE_DATA *pVirtualRefreshRateData)
    //! \code
    //! DESCRIPTION:    This function is used to set Virtual Refresh Rate data for a VRR Capable Display.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \since Release: 510
    //!
    //! \param [in]       displayId                  - display id of the display
    //! \param [inout]    pVirtualRefreshRateData    - A pointer to NV_SET_VIRTUAL_REFRESH_RATE_DATA, containing the information about the values of parameters that are to be retrieved on given display.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status. If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    ///////////////////////////////////////////////////////////////////////////////
    //! \ingroup dispcontrol
    NVAPI_INTERFACE NvAPI_DISP_SetVirtualRefreshRateData(__in NvU32 displayId, __in NV_SET_VIRTUAL_REFRESH_RATE_DATA *pVirtualRefreshRateData);

    //! \ingroup dispcontrol
    typedef struct
    {
        NvU32 version;   //!< [in] Structure version
        NvU32 displayId; //!< [in] Monitor Identifier to be set
        NvU32 reserved;  //!< Reserved for future use without adding versioning
    } NV_SET_PREFERRED_STEREO_DISPLAY_V1;

    //! \ingroup dispcontrol
    typedef NV_SET_PREFERRED_STEREO_DISPLAY_V1 NV_SET_PREFERRED_STEREO_DISPLAY;

//! \ingroup dispcontrol
#define NV_SET_PREFERRED_STEREO_DISPLAY_VER1 MAKE_NVAPI_VERSION(NV_SET_PREFERRED_STEREO_DISPLAY_V1, 1)


//! \ingroup dispcontrol
#define NV_SET_PREFERRED_STEREO_DISPLAY_VER NV_SET_PREFERRED_STEREO_DISPLAY_VER1


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_SetPreferredStereoDisplay
    //
    //! DESCRIPTION: Specifies a display output that drives the 3pin DIN output signal
    //!              in a workstation stereo system environment.
    //!              If display output is specified as a displayId of 0, the preferred
    //!              stereo display target is reset to the driver default selection.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \since Release: 470
    //!
    //! \param [in]      pPreferredStereoDisplay        Pointer to a NV_SET_PREFERRED_STEREO_DISPLAY structure
    //!
    //! \retval ::NVAPI_OK  completed request
    //! \retval ::NVAPI_ERROR  miscellaneous error occurred
    //! \retval ::NVAPI_INVALID_ARGUMENT  Invalid input parameter.
    //! \retval ::NVAPI_INVALID_USER_PRIVILEGE       - The application will require Administrator privileges to access this API.
    //!                                                The application can be elevated to a higher permission level by selecting "Run as Administrator".
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_SetPreferredStereoDisplay(__in NV_SET_PREFERRED_STEREO_DISPLAY *pPreferredStereoDisplay);

    //! \ingroup dispcontrol
    typedef struct
    {
        NvU32 version;   //!< [in] Structure version
        NvU32 displayId; //!< [out] The queried stereo display
        NvU32 reserved;  //!< Reserved for future use without adding versioning
    } NV_GET_PREFERRED_STEREO_DISPLAY_V1;

    //! \ingroup dispcontrol
    typedef NV_GET_PREFERRED_STEREO_DISPLAY_V1 NV_GET_PREFERRED_STEREO_DISPLAY;

//! \ingroup dispcontrol
#define NV_GET_PREFERRED_STEREO_DISPLAY_VER1 MAKE_NVAPI_VERSION(NV_GET_PREFERRED_STEREO_DISPLAY_V1, 1)


//! \ingroup dispcontrol
#define NV_GET_PREFERRED_STEREO_DISPLAY_VER NV_GET_PREFERRED_STEREO_DISPLAY_VER1


    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_DISP_GetPreferredStereoDisplay
    //
    //! DESCRIPTION: Queries the displayId of the display output driving the 3pin
    //!              DIN stereo signal, if any.
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \since Release: 470
    //!
    //! \param [inout]     pPreferredStereoDisplay        Pointer to a NV_GET_PREFERRED_STEREO_DISPLAY structure
    //!
    //! \retval ::NVAPI_OK  completed request
    //! \retval ::NVAPI_ERROR  miscellaneous error occurred
    //! \retval ::NVAPI_INVALID_ARGUMENT  Invalid input parameter.
    //! \retval ::NVAPI_INVALID_POINTER   An invalid pointer was passed as an argument (probably NULL).
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_GetPreferredStereoDisplay(__inout NV_GET_PREFERRED_STEREO_DISPLAY *pPreferredStereoDisplay);

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus)

    typedef struct _NV_MANAGED_DEDICATED_DISPLAY_INFO
    {
        NvU32 version;        //!< [in]  Version of this structure.
        NvU32 displayId;      //!< [out] DisplayId.
        NvU32 isAcquired : 1; //!< [out] If bit is set, this display has been acquired by another process through NvAPI_DISP_AcquireDedicatedDisplay().
        NvU32 isMosaic : 1;   //!< [out] If bit is set, this display represents a Mosaic grid.
        NvU32 reserved : 30;  //!< [out] Reserved for future use without adding versioning.
    } NV_MANAGED_DEDICATED_DISPLAY_INFO_V1;

#define NV_MANAGED_DEDICATED_DISPLAY_INFO_VER1 MAKE_NVAPI_VERSION(NV_MANAGED_DEDICATED_DISPLAY_INFO_V1, 1)

#define NV_MANAGED_DEDICATED_DISPLAY_INFO_VER NV_MANAGED_DEDICATED_DISPLAY_INFO_VER1


    typedef NV_MANAGED_DEDICATED_DISPLAY_INFO_V1 NV_MANAGED_DEDICATED_DISPLAY_INFO;

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DISP_GetNvManagedDedicatedDisplays
    //
    //!   DESCRIPTION: This API returns the count of dedicated displays managed by
    //!                the Nvidia driver, and specific driver info of each display.
    //!                This API does not return VR displays.
    //!
    //! HOW TO USE: 1) First make a call NvAPI_DISP_GetNvManagedDedicatedDisplays to get the number of dedicated displays managed by the Nvidia driver
    //!                by passing pDedicatedDisplays as NULL.
    //!                On call success:
    //!             2) Allocate memory based on pDisplayCount, then call NvAPI_DISP_GetNvManagedDedicatedDisplays to populate pDedicatedDisplays.
    //!
    //! \since Release: 495
    //!
    //! \param [in/out]   pDedicatedDisplayCount    The count of dedicated displays managed by the Nvidia driver.
    //! \param [in/out]   pDedicatedDisplays        Pointer to an array of NV_MANAGED_DEDICATED_DISPLAY_INFO data structure.
    //!
    //! \retval ::NVAPI_OK                    The call succeeded.
    //! \retval ::NVAPI_ERROR                 The call failed.
    //! \retval ::NVAPI_NO_IMPLEMENTATION     The API is not implemented in current driver.
    //! \retval ::NVAPI_OUT_OF_MEMORY         Could not allocate sufficient memory to complete the call.
    //! \retval ::NVAPI_INVALID_POINTER       An invalid pointer was passed as an argument.
    //! \retval ::NVAPI_API_NOT_INITIALIZED   NvAPI was not initialized.
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION The version of NV_MANAGED_DEDICATED_DISPLAY_INFO structure is invalid.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_GetNvManagedDedicatedDisplays(__inout NvU32 *pDedicatedDisplayCount, __inout NV_MANAGED_DEDICATED_DISPLAY_INFO *pDedicatedDisplays);
#endif // defined(__cplusplus)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DISP_AcquireDedicatedDisplay
    //
    //!   DESCRIPTION: This API requests exclusive access to the specified dedicated
    //!                display managed by the Nvidia driver. If the call succeeds, a handle
    //!                is returned which could be opened as a DisplaySource.
    //!                The call fails if the display is not managed by the Nvidia driver.
    //!                The call fails if the display has already been acquired by another process.
    //!
    //! \since Release: 495
    //!
    //! \param [in]       displayId             Display ID of the dedicated display to be acquired.
    //! \param [in/out]   pDisplaySourceHandle  Pointer to memory that receives the shared handle to a DisplaySource.
    //!
    //! \retval ::NVAPI_OK                    The call succeeded.
    //! \retval ::NVAPI_ERROR                 The call failed.
    //! \retval ::NVAPI_NO_IMPLEMENTATION     The API not implemented.
    //! \retval ::NVAPI_INVALID_POINTER       An invalid pointer was passed as an argument.
    //! \retval ::NVAPI_API_NOT_INITIALIZED   NvAPI not initialized.
    //! \retval ::NVAPI_INVALID_DISPLAY_ID    An invalid displayId was passed as an argument.
    //! \retval ::NVAPI_UNREGISTERED_RESOURCE The display is not managed by the Nvidia driver.
    //! \retval ::NVAPI_RESOURCE_IN_USE       The display has already been acquired by another process.
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_AcquireDedicatedDisplay(__in NvU32 displayId, __inout NvU64 *pDisplaySourceHandle);
#endif // defined(__cplusplus)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DISP_ReleaseDedicatedDisplay
    //
    //!   DESCRIPTION: This API releases the exclusive ownership of a specific dedicated
    //!                display previously acquired by the process.
    //!
    //! \since Release: 495
    //!
    //! \param [in]   displayId               Display ID of the dedicated display to be released.
    //!
    //! \retval ::NVAPI_OK                    The call succeeded.
    //! \retval ::NVAPI_ERROR                 The call failed.
    //! \retval ::NVAPI_NO_IMPLEMENTATION     The API not implemented.
    //! \retval ::NVAPI_API_NOT_INITIALIZED   NvAPI not initialized.
    //! \retval ::NVAPI_UNREGISTERED_RESOURCE The display is not managed by the Nvidia driver.
    //! \retval ::NVAPI_DDISPLAY_NOT_ACQUIRED The display is not acquired by the process.
    //!
    //! \ingroup dispcontrol
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DISP_ReleaseDedicatedDisplay(__in NvU32 displayId);
#endif // defined(__cplusplus)

    ////////////////////////////////////////////////////////////////////////////////////////
    //
    // MOSAIC allows a multi display target output scanout on a single source.
    //
    // SAMPLE of MOSAIC 1x4 topo with 8 pixel horizontal overlap
    //
    //+-------------------------++-------------------------++-------------------------++-------------------------+
    //|                         ||                         ||                         ||                         |
    //|                         ||                         ||                         ||                         |
    //|                         ||                         ||                         ||                         |
    //|        DVI1             ||           DVI2          ||         DVI3            ||          DVI4           |
    //|                         ||                         ||                         ||                         |
    //|                         ||                         ||                         ||                         |
    //|                         ||                         ||                         ||                         |
    //|                         ||                         ||                         ||                         |
    //+-------------------------++-------------------------++-------------------------++-------------------------+

    //! \addtogroup mosaicapi
    //! @{

#define NVAPI_MAX_MOSAIC_DISPLAY_ROWS 8

#define NVAPI_MAX_MOSAIC_DISPLAY_COLUMNS 8

//
// These bits are used to describe the validity of a topo.
//
#define NV_MOSAIC_TOPO_VALIDITY_VALID 0x00000000               //!< The topology is valid

#define NV_MOSAIC_TOPO_VALIDITY_MISSING_GPU 0x00000001         //!< Not enough SLI GPUs were found to fill the entire

                                                               //! topology. hPhysicalGPU will be 0 for these.
#define NV_MOSAIC_TOPO_VALIDITY_MISSING_DISPLAY 0x00000002     //!< Not enough displays were found to fill the entire

                                                               //! topology. displayOutputId will be 0 for these.
#define NV_MOSAIC_TOPO_VALIDITY_MIXED_DISPLAY_TYPES 0x00000004 //!< The topoogy is only possible with displays of the same

                                                               //! NV_GPU_OUTPUT_TYPE. Check displayOutputIds to make
                                                               //! sure they are all CRTs, or all DFPs.

    //
    //! This structure defines the topology details.
    typedef struct
    {
        NvU32 version;                  //!< Version of this structure
        NvLogicalGpuHandle hLogicalGPU; //!< Logical GPU for this topology
        NvU32 validityMask;             //!< 0 means topology is valid with the current hardware.
                                        //! If not 0, inspect bits against NV_MOSAIC_TOPO_VALIDITY_*.
        NvU32 rowCount;                 //!< Number of displays in a row
        NvU32 colCount;                 //!< Number of displays in a column

        struct
        {
            NvPhysicalGpuHandle hPhysicalGPU; //!< Physical GPU to be used in the topology (0 if GPU missing)
            NvU32 displayOutputId;            //!< Connected display target (0 if no display connected)
            NvS32 overlapX;                   //!< Pixels of overlap on left of target: (+overlap, -gap)
            NvS32 overlapY;                   //!< Pixels of overlap on top of target: (+overlap, -gap)

        } gpuLayout[NVAPI_MAX_MOSAIC_DISPLAY_ROWS][NVAPI_MAX_MOSAIC_DISPLAY_COLUMNS];

    } NV_MOSAIC_TOPO_DETAILS;

//! Macro for constructing te vesion field of NV_MOSAIC_TOPO_DETAILS
#define NVAPI_MOSAIC_TOPO_DETAILS_VER MAKE_NVAPI_VERSION(NV_MOSAIC_TOPO_DETAILS, 1)


    //
    //! These values refer to the different types of Mosaic topologies that are possible.  When
    //! getting the supported Mosaic topologies, you can specify one of these types to narrow down
    //! the returned list to only those that match the given type.
    typedef enum
    {
        NV_MOSAIC_TOPO_TYPE_ALL,                         //!< All mosaic topologies
        NV_MOSAIC_TOPO_TYPE_BASIC,                       //!< Basic Mosaic topologies
        NV_MOSAIC_TOPO_TYPE_PASSIVE_STEREO,              //!< Passive Stereo topologies
        NV_MOSAIC_TOPO_TYPE_SCALED_CLONE,                //!< Not supported at this time
        NV_MOSAIC_TOPO_TYPE_PASSIVE_STEREO_SCALED_CLONE, //!< Not supported at this time
        NV_MOSAIC_TOPO_TYPE_MAX,                         //!< Always leave this at end of the enum
    } NV_MOSAIC_TOPO_TYPE;

    //
    //! This is a complete list of supported Mosaic topologies.
    //!
    //! Using a "Basic" topology combines multiple monitors to create a single desktop.
    //!
    //! Using a "Passive" topology combines multiples monitors to create a passive stereo desktop.
    //! In passive stereo, two identical topologies combine - one topology is used for the right eye and the other identical //! topology (targeting different displays) is used for the left eye.  \n
    //! NOTE: common\inc\nvEscDef.h shadows a couple PASSIVE_STEREO enums.  If this
    //!       enum list changes and effects the value of NV_MOSAIC_TOPO_BEGIN_PASSIVE_STEREO
    //!       please update the corresponding value in nvEscDef.h
    typedef enum
    {
        NV_MOSAIC_TOPO_NONE,

        // 'BASIC' topos start here
        //
        // The result of using one of these Mosaic topos is that multiple monitors
        // will combine to create a single desktop.
        //
        NV_MOSAIC_TOPO_BEGIN_BASIC,
        NV_MOSAIC_TOPO_1x2_BASIC = NV_MOSAIC_TOPO_BEGIN_BASIC,
        NV_MOSAIC_TOPO_2x1_BASIC,
        NV_MOSAIC_TOPO_1x3_BASIC,
        NV_MOSAIC_TOPO_3x1_BASIC,
        NV_MOSAIC_TOPO_1x4_BASIC,
        NV_MOSAIC_TOPO_4x1_BASIC,
        NV_MOSAIC_TOPO_2x2_BASIC,
        NV_MOSAIC_TOPO_2x3_BASIC,
        NV_MOSAIC_TOPO_2x4_BASIC,
        NV_MOSAIC_TOPO_3x2_BASIC,
        NV_MOSAIC_TOPO_4x2_BASIC,
        NV_MOSAIC_TOPO_1x5_BASIC,
        NV_MOSAIC_TOPO_1x6_BASIC,
        NV_MOSAIC_TOPO_7x1_BASIC,

        // Add padding for 10 more entries. 6 will be enough room to specify every
        // possible topology with 8 or fewer displays, so this gives us a little
        // extra should we need it.
        NV_MOSAIC_TOPO_END_BASIC = NV_MOSAIC_TOPO_7x1_BASIC + 9,

        // 'PASSIVE_STEREO' topos start here
        //
        // The result of using one of these Mosaic topos is that multiple monitors
        // will combine to create a single PASSIVE STEREO desktop.  What this means is
        // that there will be two topos that combine to create the overall desktop.
        // One topo will be used for the left eye, and the other topo (of the
        // same rows x cols), will be used for the right eye.  The difference between
        // the two topos is that different GPUs and displays will be used.
        //
        NV_MOSAIC_TOPO_BEGIN_PASSIVE_STEREO, // value shadowed in nvEscDef.h
        NV_MOSAIC_TOPO_1x2_PASSIVE_STEREO = NV_MOSAIC_TOPO_BEGIN_PASSIVE_STEREO,
        NV_MOSAIC_TOPO_2x1_PASSIVE_STEREO,
        NV_MOSAIC_TOPO_1x3_PASSIVE_STEREO,
        NV_MOSAIC_TOPO_3x1_PASSIVE_STEREO,
        NV_MOSAIC_TOPO_1x4_PASSIVE_STEREO,
        NV_MOSAIC_TOPO_4x1_PASSIVE_STEREO,
        NV_MOSAIC_TOPO_2x2_PASSIVE_STEREO,
        NV_MOSAIC_TOPO_END_PASSIVE_STEREO = NV_MOSAIC_TOPO_2x2_PASSIVE_STEREO + 4,

        //
        // Total number of topos.  Always leave this at the end of the enumeration.
        //
        NV_MOSAIC_TOPO_MAX //! Total number of topologies.

    } NV_MOSAIC_TOPO;

    //
    //! This is a "topology brief" structure.  It tells you what you need to know about
    //! a topology at a high level. A list of these is returned when you query for the
    //! supported Mosaic information.
    //!
    //! If you need more detailed information about the topology, call
    //! NvAPI_Mosaic_GetTopoGroup() with the topology value from this structure.
    typedef struct
    {
        NvU32 version;       //!< Version of this structure
        NV_MOSAIC_TOPO topo; //!< The topology
        NvU32 enabled;       //!< 1 if topo is enabled, else 0
        NvU32 isPossible;    //!< 1 if topo *can* be enabled, else 0

    } NV_MOSAIC_TOPO_BRIEF;

//! Macro for constructing the version field of NV_MOSAIC_TOPO_BRIEF
#define NVAPI_MOSAIC_TOPO_BRIEF_VER MAKE_NVAPI_VERSION(NV_MOSAIC_TOPO_BRIEF, 1)


    //
    //! Basic per-display settings that are used in setting/getting the Mosaic mode
    typedef struct _NV_MOSAIC_DISPLAY_SETTING_V1
    {
        NvU32 version; //!< Version of this structure
        NvU32 width;   //!< Per-display width
        NvU32 height;  //!< Per-display height
        NvU32 bpp;     //!< Bits per pixel
        NvU32 freq;    //!< Display frequency
    } NV_MOSAIC_DISPLAY_SETTING_V1;

    typedef struct NV_MOSAIC_DISPLAY_SETTING_V2
    {
        NvU32 version; //!< Version of this structure
        NvU32 width;   //!< Per-display width
        NvU32 height;  //!< Per-display height
        NvU32 bpp;     //!< Bits per pixel
        NvU32 freq;    //!< Display frequency
        NvU32 rrx1k;   //!< Display frequency in x1k
    } NV_MOSAIC_DISPLAY_SETTING_V2;

    typedef NV_MOSAIC_DISPLAY_SETTING_V2 NV_MOSAIC_DISPLAY_SETTING;

//! Macro for constructing the version field of NV_MOSAIC_DISPLAY_SETTING
#define NVAPI_MOSAIC_DISPLAY_SETTING_VER1 MAKE_NVAPI_VERSION(NV_MOSAIC_DISPLAY_SETTING_V1, 1)

#define NVAPI_MOSAIC_DISPLAY_SETTING_VER2 MAKE_NVAPI_VERSION(NV_MOSAIC_DISPLAY_SETTING_V2, 2)

#define NVAPI_MOSAIC_DISPLAY_SETTING_VER NVAPI_MOSAIC_DISPLAY_SETTING_VER2


//
// Set a reasonable max number of display settings to support
// so arrays are bound.
//
#define NV_MOSAIC_DISPLAY_SETTINGS_MAX 40 //!< Set a reasonable maximum number of display settings to support

                                          //! so arrays are bound.

    //
    //! This structure is used to contain a list of supported Mosaic topologies
    //! along with the display settings that can be used.
    typedef struct _NV_MOSAIC_SUPPORTED_TOPO_INFO_V1
    {
        NvU32 version;                                                                //!< Version of this structure
        NvU32 topoBriefsCount;                                                        //!< Number of topologies in below array
        NV_MOSAIC_TOPO_BRIEF topoBriefs[NV_MOSAIC_TOPO_MAX];                          //!< List of supported topologies with only brief details
        NvU32 displaySettingsCount;                                                   //!< Number of display settings in below array
        NV_MOSAIC_DISPLAY_SETTING_V1 displaySettings[NV_MOSAIC_DISPLAY_SETTINGS_MAX]; //!< List of per display settings possible

    } NV_MOSAIC_SUPPORTED_TOPO_INFO_V1;

    typedef struct _NV_MOSAIC_SUPPORTED_TOPO_INFO_V2
    {
        NvU32 version;                                                                //!< Version of this structure
        NvU32 topoBriefsCount;                                                        //!< Number of topologies in below array
        NV_MOSAIC_TOPO_BRIEF topoBriefs[NV_MOSAIC_TOPO_MAX];                          //!< List of supported topologies with only brief details
        NvU32 displaySettingsCount;                                                   //!< Number of display settings in below array
        NV_MOSAIC_DISPLAY_SETTING_V2 displaySettings[NV_MOSAIC_DISPLAY_SETTINGS_MAX]; //!< List of per display settings possible

    } NV_MOSAIC_SUPPORTED_TOPO_INFO_V2;

    typedef NV_MOSAIC_SUPPORTED_TOPO_INFO_V2 NV_MOSAIC_SUPPORTED_TOPO_INFO;

//! Macro forconstructing  the version field of NV_MOSAIC_SUPPORTED_TOPO_INFO
#define NVAPI_MOSAIC_SUPPORTED_TOPO_INFO_VER1 MAKE_NVAPI_VERSION(NV_MOSAIC_SUPPORTED_TOPO_INFO_V1, 1)

#define NVAPI_MOSAIC_SUPPORTED_TOPO_INFO_VER2 MAKE_NVAPI_VERSION(NV_MOSAIC_SUPPORTED_TOPO_INFO_V2, 2)

#define NVAPI_MOSAIC_SUPPORTED_TOPO_INFO_VER NVAPI_MOSAIC_SUPPORTED_TOPO_INFO_VER2


//
// Indices to use to access the topos array within the mosaic topology
#define NV_MOSAIC_TOPO_IDX_DEFAULT 0


#define NV_MOSAIC_TOPO_IDX_LEFT_EYE 0

#define NV_MOSAIC_TOPO_IDX_RIGHT_EYE 1

#define NV_MOSAIC_TOPO_NUM_EYES 2


//
//! This defines the maximum number of topos that can be in a topo group.
//! At this time, it is set to 2 because our largest topo group (passive
//! stereo) only needs 2 topos (left eye and right eye).
//!
//! If a new topo group with more than 2 topos is added above, then this
//! number will also have to be incremented.
#define NV_MOSAIC_MAX_TOPO_PER_TOPO_GROUP 2


    //
    //! This structure defines a group of topologies that work together to create one
    //! overall layout.  All of the supported topologies are represented with this
    //! structure.
    //!
    //! For example, a 'Passive Stereo' topology would be represented with this
    //! structure, and would have separate topology details for the left and right eyes.
    //! The count would be 2.  A 'Basic' topology is also represented by this structure,
    //! with a count of 1.
    //!
    //! The structure is primarily used internally, but is exposed to applications in a
    //! read-only fashion because there are some details in it that might be useful
    //! (like the number of rows/cols, or connected display information).  A user can
    //! get the filled-in structure by calling NvAPI_Mosaic_GetTopoGroup().
    //!
    //! You can then look at the detailed values within the structure.  There are no
    //! entrypoints which take this structure as input (effectively making it read-only).
    typedef struct
    {
        NvU32 version;              //!< Version of this structure
        NV_MOSAIC_TOPO_BRIEF brief; //!< The brief details of this topo
        NvU32 count;                //!< Number of topos in array below
        NV_MOSAIC_TOPO_DETAILS topos[NV_MOSAIC_MAX_TOPO_PER_TOPO_GROUP];

    } NV_MOSAIC_TOPO_GROUP;

//! Macro for constructing the version field of NV_MOSAIC_TOPO_GROUP
#define NVAPI_MOSAIC_TOPO_GROUP_VER MAKE_NVAPI_VERSION(NV_MOSAIC_TOPO_GROUP, 1)


    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_GetSupportedTopoInfo
    //
    //! DESCRIPTION:     This API returns information on the topologies and display resolutions
    //!                  supported by Mosaic mode.
    //!
    //!                  NOTE: Not all topologies returned can be set immediately.
    //!                        See 'OUT' Notes below.
    //!
    //!                  Once you get the list of supported topologies, you can call
    //!                  NvAPI_Mosaic_GetTopoGroup() with one of the Mosaic topologies if you need
    //!                  more information about it.
    //!
    //!     <b>'IN' Notes:</b>  pSupportedTopoInfo->version must be set before calling this function.
    //!                  If the specified version is not supported by this implementation,
    //!                  an error will be returned (NVAPI_INCOMPATIBLE_STRUCT_VERSION).
    //!
    //!     <b>'OUT' Notes:</b> Some of the topologies returned might not be valid for one reason or
    //!                  another.  It could be due to mismatched or missing displays.  It
    //!                  could also be because the required number of GPUs is not found.
    //!                  At a high level, you can see if the topology is valid and can be enabled
    //!                  by looking at the pSupportedTopoInfo->topoBriefs[xxx].isPossible flag.
    //!                  If this is true, the topology can be enabled. If it
    //!                  is false, you can find out why it cannot be enabled by getting the
    //!                  details of the topology via NvAPI_Mosaic_GetTopoGroup().  From there,
    //!                  look at the validityMask of the individual topologies.  The bits can
    //!                  be tested against the NV_MOSAIC_TOPO_VALIDITY_* bits.
    //!
    //!                  It is possible for this function to return NVAPI_OK with no topologies
    //!                  listed in the return structure.  If this is the case, it means that
    //!                  the current hardware DOES support Mosaic, but with the given configuration
    //!                  no valid topologies were found.  This most likely means that SLI was not
    //!                  enabled for the hardware. Once enabled, you should see valid topologies
    //!                  returned from this function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 185
    //!
    //!
    //! \param [in,out]  pSupportedTopoInfo  Information about what topologies and display resolutions
    //!                                      are supported for Mosaic.
    //! \param [in]      type                The type of topologies the caller is interested in
    //!                                      getting. See NV_MOSAIC_TOPO_TYPE for possible values.
    //!
    //! \retval ::NVAPI_OK                          No errors in returning supported topologies.
    //! \retval ::NVAPI_NOT_SUPPORTED               Mosaic is not supported with the existing hardware.
    //! \retval ::NVAPI_INVALID_ARGUMENT            One or more arguments passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INTIALIZED          The NvAPI API needs to be initialized first.
    //! \retval ::NVAPI_NO_IMPLEMENTATION           This entrypoint not available.
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION The version of the structure passed in is not
    //                                              compatible with this entry point.
    //! \retval ::NVAPI_ERROR:                      Miscellaneous error occurred.
    //!
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_GetSupportedTopoInfo(NV_MOSAIC_SUPPORTED_TOPO_INFO *pSupportedTopoInfo, NV_MOSAIC_TOPO_TYPE type);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_GetTopoGroup
    //
    //! DESCRIPTION:     This API returns a structure filled with the details
    //!                  of the specified Mosaic topology.
    //!
    //!                  If the pTopoBrief passed in matches the current topology,
    //!                  then information in the brief and group structures
    //!                  will reflect what is current. Thus the brief would have
    //!                  the current 'enable' status, and the group would have the
    //!                  current overlap values. If there is no match, then the
    //!                  returned brief has an 'enable' status of FALSE (since it
    //!                  is obviously not enabled), and the overlap values will be 0.
    //!
    //!     <b>'IN' Notes:</b>  pTopoGroup->version must be set before calling this function.
    //!                  If the specified version is not supported by this implementation,
    //!                  an error will be returned (NVAPI_INCOMPATIBLE_STRUCT_VERSION).
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 185
    //!
    //! \param [in]     pTopoBrief        The topology for getting the details
    //!                                   This must be one of the topology briefs
    //!                                   returned from NvAPI_Mosaic_GetSupportedTopoInfo().
    //! \param [in,out] pTopoGroup        The topology details matching the brief
    //!
    //! \retval ::NVAPI_OK                          Details were retrieved successfully.
    //! \retval ::NVAPI_NOT_SUPPORTED               Mosaic is not supported with the existing hardware.
    //! \retval ::NVAPI_INVALID_ARGUMENT            One or more argumentss passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INTIALIZED          The NvAPI API needs to be initialized first.
    //! \retval ::NVAPI_NO_IMPLEMENTATION           This entrypoint not available.
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION The version of the structure passed in is not
    //                                              compatible with this entry point.
    //! \retval ::NVAPI_ERROR:                      Miscellaneous error occurred.
    //!
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_GetTopoGroup(NV_MOSAIC_TOPO_BRIEF *pTopoBrief, NV_MOSAIC_TOPO_GROUP *pTopoGroup);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_GetOverlapLimits
    //
    //! DESCRIPTION:     This API returns the X and Y overlap limits required if
    //!                  the given Mosaic topology and display settings are to be used.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 185
    //!
    //! \param [in]   pTopoBrief          The topology for getting limits
    //!                                   This must be one of the topo briefs
    //!                                   returned from NvAPI_Mosaic_GetSupportedTopoInfo().
    //! \param [in]   pDisplaySetting     The display settings for getting the limits.
    //!                                   This must be one of the settings
    //!                                   returned from NvAPI_Mosaic_GetSupportedTopoInfo().
    //! \param [out]  pMinOverlapX        X overlap minimum
    //! \param [out]  pMaxOverlapX        X overlap maximum
    //! \param [out]  pMinOverlapY        Y overlap minimum
    //! \param [out]  pMaxOverlapY        Y overlap maximum
    //!
    //! \retval ::NVAPI_OK                          Details were retrieved successfully.
    //! \retval ::NVAPI_NOT_SUPPORTED               Mosaic is not supported with the existing hardware.
    //! \retval ::NVAPI_INVALID_ARGUMENT            One or more argumentss passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INTIALIZED          The NvAPI API needs to be initialized first.
    //! \retval ::NVAPI_NO_IMPLEMENTATION           This entrypoint not available.
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION The version of the structure passed in is not
    //!                                             compatible with this entry point.
    //! \retval ::NVAPI_ERROR                       Miscellaneous error occurred.
    //!
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_GetOverlapLimits(NV_MOSAIC_TOPO_BRIEF *pTopoBrief, NV_MOSAIC_DISPLAY_SETTING *pDisplaySetting, NvS32 *pMinOverlapX, NvS32 *pMaxOverlapX, NvS32 *pMinOverlapY, NvS32 *pMaxOverlapY);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_SetCurrentTopo
    //
    //! DESCRIPTION:     This API sets the Mosaic topology and performs a mode switch
    //!                  using the given display settings.
    //!
    //!                  If NVAPI_OK is returned, the current Mosaic topology was set
    //!                  correctly.  Any other status returned means the
    //!                  topology was not set, and remains what it was before this
    //!                  function was called.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 185
    //!
    //! \param [in]     pTopoBrief        The topology to set. This must be one of the topologies returned from
    //!                                   NvAPI_Mosaic_GetSupportedTopoInfo(), and it must have an isPossible value of 1.
    //! \param [in]     pDisplaySetting   The per display settings to be used in the Mosaic mode. This must be one of the
    //!                                   settings returned from NvAPI_Mosaic_GetSupportedTopoInfo().
    //! \param [in]     overlapX          The pixel overlap to use between horizontal displays (use positive a number for
    //!                                   overlap, or a negative number to create a gap.) If the overlap is out of bounds
    //!                                   for what is possible given the topo and display setting, the overlap will be clamped.
    //! \param [in]     overlapY          The pixel overlap to use between vertical displays (use positive a number for
    //!                                   overlap, or a negative number to create a gap.) If the overlap is out of bounds for
    //!                                   what is possible given the topo and display setting, the overlap will be clamped.
    //! \param [in]     enable            If 1, the topology being set will also be enabled, meaning that the mode set will
    //!                                   occur.  \n
    //!                                   If 0, you don't want to be in Mosaic mode right now, but want to set the current
    //!                                   Mosaic topology so you can enable it later with NvAPI_Mosaic_EnableCurrentTopo().
    //!
    //! \retval  ::NVAPI_OK                          The Mosaic topology was set.
    //! \retval  ::NVAPI_NOT_SUPPORTED               Mosaic is not supported with the existing hardware.
    //! \retval  ::NVAPI_INVALID_ARGUMENT            One or more argumentss passed in are invalid.
    //! \retval  ::NVAPI_TOPO_NOT_POSSIBLE           The topology passed in is not currently possible.
    //! \retval  ::NVAPI_API_NOT_INTIALIZED          The NvAPI API needs to be initialized first.
    //! \retval  ::NVAPI_NO_IMPLEMENTATION           This entrypoint not available.
    //! \retval  ::NVAPI_INCOMPATIBLE_STRUCT_VERSION The version of the structure passed in is not
    //!                                              compatible with this entrypoint.
    //! \retval  ::NVAPI_MODE_CHANGE_FAILED          There was an error changing the display mode.
    //! \retval  ::NVAPI_ERROR                       Miscellaneous error occurred.
    //!
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_SetCurrentTopo(NV_MOSAIC_TOPO_BRIEF *pTopoBrief, NV_MOSAIC_DISPLAY_SETTING *pDisplaySetting, NvS32 overlapX, NvS32 overlapY, NvU32 enable);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_GetCurrentTopo
    //
    //! DESCRIPTION:     This API returns information for the current Mosaic topology.
    //!                  This includes topology, display settings, and overlap values.
    //!
    //!                  You can call NvAPI_Mosaic_GetTopoGroup() with the topology
    //!                  if you require more information.
    //!
    //!                  If there isn't a current topology, then pTopoBrief->topo will
    //!                  be NV_MOSAIC_TOPO_NONE.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 185
    //!
    //! \param [out]     pTopoBrief       The current Mosaic topology
    //! \param [out]     pDisplaySetting  The current per-display settings
    //! \param [out]     pOverlapX        The pixel overlap between horizontal displays
    //! \param [out]     pOverlapY        The pixel overlap between vertical displays
    //!
    //! \retval ::NVAPI_OK                          Success getting current info.
    //! \retval ::NVAPI_NOT_SUPPORTED               Mosaic is not supported with the existing hardware.
    //! \retval ::NVAPI_INVALID_ARGUMENT            One or more argumentss passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INTIALIZED          The NvAPI API needs to be initialized first.
    //! \retval ::NVAPI_NO_IMPLEMENTATION           This entry point not available.
    //! \retval ::NVAPI_ERROR                       Miscellaneous error occurred.
    //!
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_GetCurrentTopo(NV_MOSAIC_TOPO_BRIEF *pTopoBrief, NV_MOSAIC_DISPLAY_SETTING *pDisplaySetting, NvS32 *pOverlapX, NvS32 *pOverlapY);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_EnableCurrentTopo
    //
    //! DESCRIPTION:     This API enables or disables the current Mosaic topology
    //!                  based on the setting of the incoming 'enable' parameter.
    //!
    //!                  An "enable" setting enables the current (previously set) Mosaic topology.
    //!                  Note that when the current Mosaic topology is retrieved, it must have an isPossible value of 1 or
    //!                  an error will occur.
    //!
    //!                  A "disable" setting disables the current Mosaic topology.
    //!                  The topology information will persist, even across reboots.
    //!                  To re-enable the Mosaic topology, call this function
    //!                  again with the enable parameter set to 1.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 185
    //!
    //! \param [in]   enable               1 to enable the current Mosaic topo, 0 to disable it.
    //!
    //! \retval ::NVAPI_OK                 The Mosaic topo was enabled/disabled.
    //! \retval ::NVAPI_NOT_SUPPORTED      Mosaic is not supported with the existing hardware.
    //! \retval ::NVAPI_INVALID_ARGUMENT   One or more arguments passed in are invalid.
    //! \retval ::NVAPI_TOPO_NOT_POSSIBLE  The current topology is not currently possible.
    //! \retval ::NVAPI_MODE_CHANGE_FAILED There was an error changing the display mode.
    //! \retval ::NVAPI_ERROR:             Miscellaneous error occurred.
    //!
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_EnableCurrentTopo(NvU32 enable);

    //! \ingroup mosaicapi
    //! @{
    typedef struct _NV_MOSAIC_GRID_TOPO_DISPLAY_V1
    {
        NvU32 displayId;    //!< DisplayID of the display
        NvS32 overlapX;     //!< (+overlap, -gap)
        NvS32 overlapY;     //!< (+overlap, -gap)
        NV_ROTATE rotation; //!< Rotation of display
        NvU32 cloneGroup;   //!< Reserved, must be 0
    } NV_MOSAIC_GRID_TOPO_DISPLAY_V1;

    typedef enum _NV_PIXEL_SHIFT_TYPE
    {
        NV_PIXEL_SHIFT_TYPE_NO_PIXEL_SHIFT = 0,          //!< No pixel shift will be applied to this display.
        NV_PIXEL_SHIFT_TYPE_2x2_TOP_LEFT_PIXELS = 1,     //!< This display will be used to scanout top left pixels in 2x2 PixelShift configuration
        NV_PIXEL_SHIFT_TYPE_2x2_BOTTOM_RIGHT_PIXELS = 2, //!< This display will be used to scanout bottom right pixels in 2x2 PixelShift configuration
        NV_PIXEL_SHIFT_TYPE_2x2_TOP_RIGHT_PIXELS = 4,    //!< This display will be used to scanout top right pixels in 2x2 PixelShift configuration
        NV_PIXEL_SHIFT_TYPE_2x2_BOTTOM_LEFT_PIXELS = 8,  //!< This display will be used to scanout bottom left pixels in 2x2 PixelShift configuration
    } NV_PIXEL_SHIFT_TYPE;

    typedef struct _NV_MOSAIC_GRID_TOPO_DISPLAY_V2
    {
        NvU32 version; //!< Version of this structure

        NvU32 displayId;                    //!< DisplayID of the display
        NvS32 overlapX;                     //!< (+overlap, -gap)
        NvS32 overlapY;                     //!< (+overlap, -gap)
        NV_ROTATE rotation;                 //!< Rotation of display
        NvU32 cloneGroup;                   //!< Reserved, must be 0
        NV_PIXEL_SHIFT_TYPE pixelShiftType; //!< Type of the pixel shift enabled display
    } NV_MOSAIC_GRID_TOPO_DISPLAY_V2;

#ifndef NV_MOSAIC_GRID_TOPO_DISPLAY_VER

    typedef NV_MOSAIC_GRID_TOPO_DISPLAY_V1 NV_MOSAIC_GRID_TOPO_DISPLAY;

#endif

    typedef struct _NV_MOSAIC_GRID_TOPO_V1
    {
        NvU32 version;                                                   //!< Version of this structure
        NvU32 rows;                                                      //!< Number of rows
        NvU32 columns;                                                   //!< Number of columns
        NvU32 displayCount;                                              //!< Number of display details
        NvU32 applyWithBezelCorrect : 1;                                 //!< When enabling and doing the modeset, do we switch to the bezel-corrected resolution
        NvU32 immersiveGaming : 1;                                       //!< Enable as immersive gaming instead of Mosaic SLI (for Quadro-boards only)
        NvU32 baseMosaic : 1;                                            //!< Enable as Base Mosaic (Panoramic) instead of Mosaic SLI (for NVS and Quadro-boards only)
        NvU32 driverReloadAllowed : 1;                                   //!< If necessary, reloading the driver is permitted (for Vista and above only). Will not be persisted. Value undefined on get.
        NvU32 acceleratePrimaryDisplay : 1;                              //!< Enable SLI acceleration on the primary display while in single-wide mode (For Immersive Gaming only). Will not be persisted. Value undefined on get.
        NvU32 reserved : 27;                                             //!< Reserved, must be 0
        NV_MOSAIC_GRID_TOPO_DISPLAY_V1 displays[NV_MOSAIC_MAX_DISPLAYS]; //!< Displays are done as [(row * columns) + column]
        NV_MOSAIC_DISPLAY_SETTING_V1 displaySettings;                    //!< Display settings
    } NV_MOSAIC_GRID_TOPO_V1;

    typedef struct _NV_MOSAIC_GRID_TOPO_V2
    {
        NvU32 version;                                                   //!< Version of this structure
        NvU32 rows;                                                      //!< Number of rows
        NvU32 columns;                                                   //!< Number of columns
        NvU32 displayCount;                                              //!< Number of display details
        NvU32 applyWithBezelCorrect : 1;                                 //!< When enabling and doing the modeset, do we switch to the bezel-corrected resolution
        NvU32 immersiveGaming : 1;                                       //!< Enable as immersive gaming instead of Mosaic SLI (for Quadro-boards only)
        NvU32 baseMosaic : 1;                                            //!< Enable as Base Mosaic (Panoramic) instead of Mosaic SLI (for NVS and Quadro-boards only)
        NvU32 driverReloadAllowed : 1;                                   //!< If necessary, reloading the driver is permitted (for Vista and above only). Will not be persisted. Value undefined on get.
        NvU32 acceleratePrimaryDisplay : 1;                              //!< Enable SLI acceleration on the primary display while in single-wide mode (For Immersive Gaming only). Will not be persisted. Value undefined on get.
        NvU32 pixelShift : 1;                                            //!< Enable Pixel shift
        NvU32 reserved : 26;                                             //!< Reserved, must be 0
        NV_MOSAIC_GRID_TOPO_DISPLAY_V2 displays[NV_MOSAIC_MAX_DISPLAYS]; //!< Displays are done as [(row * columns) + column]
        NV_MOSAIC_DISPLAY_SETTING_V1 displaySettings;                    //!< Display settings
    } NV_MOSAIC_GRID_TOPO_V2;

//! Macro for constructing the version field of ::NV_MOSAIC_GRID_TOPO
#define NV_MOSAIC_GRID_TOPO_VER1 MAKE_NVAPI_VERSION(NV_MOSAIC_GRID_TOPO_V1, 1)

#define NV_MOSAIC_GRID_TOPO_VER2 MAKE_NVAPI_VERSION(NV_MOSAIC_GRID_TOPO_V2, 2)

#ifndef NV_MOSAIC_GRID_TOPO_VER

    typedef NV_MOSAIC_GRID_TOPO_V2 NV_MOSAIC_GRID_TOPO;

//! Macro for constructing the version field of ::NV_MOSAIC_GRID_TOPO
#define NV_MOSAIC_GRID_TOPO_VER NV_MOSAIC_GRID_TOPO_VER2


#endif

    //! @}

    //! since Release R290

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_DISPLAY_ON_INVALID_GPU NV_BIT(0)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_DISPLAY_ON_WRONG_CONNECTOR NV_BIT(1)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_NO_COMMON_TIMINGS NV_BIT(2)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_NO_EDID_AVAILABLE NV_BIT(3)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_MISMATCHED_OUTPUT_TYPE NV_BIT(4)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_NO_DISPLAY_CONNECTED NV_BIT(5)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_NO_GPU_TOPOLOGY NV_BIT(6)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_NOT_SUPPORTED NV_BIT(7)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_NO_SLI_BRIDGE NV_BIT(8)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_ECC_ENABLED NV_BIT(9)

#define NV_MOSAIC_DISPLAYCAPS_PROBLEM_GPU_TOPOLOGY_NOT_SUPPORTED NV_BIT(10)


//! Do not change the current GPU topology. If the NO_DRIVER_RELOAD bit is not
//! specified, then it may still require a driver reload.
#define NV_MOSAIC_SETDISPLAYTOPO_FLAG_CURRENT_GPU_TOPOLOGY NV_BIT(0)


//! Do not allow a driver reload. That is, stick with the same master GPU as well as the
//! same SLI configuration.
#define NV_MOSAIC_SETDISPLAYTOPO_FLAG_NO_DRIVER_RELOAD NV_BIT(1)


//! When choosing a GPU topology, choose the topology with the best performance.
//! Without this flag, it will choose the topology that uses the smallest number
//! of GPU's.
#define NV_MOSAIC_SETDISPLAYTOPO_FLAG_MAXIMIZE_PERFORMANCE NV_BIT(2)


//! Do not return an error if no configuration will work with all of the grids.
#define NV_MOSAIC_SETDISPLAYTOPO_FLAG_ALLOW_INVALID NV_BIT(3)


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_SetDisplayGrids
    //
    //! DESCRIPTION:     Sets a new display topology, replacing any existing topologies
    //!                  that use the same displays.
    //!
    //!                  This function will look for an SLI configuration that will
    //!                  allow the display topology to work.
    //!
    //!                  To revert to a single display, specify that display as a 1x1
    //!                  grid.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      pGridTopologies    The topology details to set.
    //! \param [in]      gridCount          The number of elements in the pGridTopologies array.
    //! \param [in]      setTopoFlags       Zero or more of the NVAPI_MOSAIC_SETDISPLAYTOPO_FLAG_*
    //!                                     flags.
    //!
    //!
    //! \retval ::NVAPI_OK                          Capabilities have been returned.
    //! \retval ::NVAPI_INVALID_ARGUMENT            One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INTIALIZED          The NvAPI API needs to be initialized first
    //! \retval ::NVAPI_NO_IMPLEMENTATION           This entrypoint not available
    //! \retval ::NVAPI_NO_ACTIVE_SLI_TOPOLOGY      No matching GPU topologies could be found.
    //! \retval ::NVAPI_TOPO_NOT_POSSIBLE           One or more of the display grids are not valid.
    //! \retval ::NVAPI_ERROR                       Miscellaneous error occurred
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_SetDisplayGrids(__in_ecount(gridCount) NV_MOSAIC_GRID_TOPO *pGridTopologies, __in NvU32 gridCount, __in NvU32 setTopoFlags);

//! \ingroup mosaicapi
//! Indicates that a display's position in the grid is sub-optimal.
#define NV_MOSAIC_DISPLAYTOPO_WARNING_DISPLAY_POSITION NV_BIT(0)


//! \ingroup mosaicapi
//! Indicates that SetDisplaySettings would need to perform a driver reload.
#define NV_MOSAIC_DISPLAYTOPO_WARNING_DRIVER_RELOAD_REQUIRED NV_BIT(1)


    //! \ingroup mosaicapi
    typedef struct
    {
        NvU32 version;
        NvU32 errorFlags;   //!< (OUT) Any of the NV_MOSAIC_DISPLAYTOPO_ERROR_* flags.
        NvU32 warningFlags; //!< (OUT) Any of the NV_MOSAIC_DISPLAYTOPO_WARNING_* flags.

        NvU32 displayCount; //!< (OUT) The number of valid entries in the displays array.
        struct
        {
            NvU32 displayId;    //!< (OUT) The DisplayID of this display.
            NvU32 errorFlags;   //!< (OUT) Any of the NV_MOSAIC_DISPLAYCAPS_PROBLEM_* flags.
            NvU32 warningFlags; //!< (OUT) Any of the NV_MOSAIC_DISPLAYTOPO_WARNING_* flags.

            NvU32 supportsRotation : 1; //!< (OUT) This display can be rotated
            NvU32 reserved : 31;        //!< (OUT) reserved
        } displays[NVAPI_MAX_DISPLAYS];
    } NV_MOSAIC_DISPLAY_TOPO_STATUS;

//! \ingroup mosaicapi
#define NV_MOSAIC_DISPLAY_TOPO_STATUS_VER MAKE_NVAPI_VERSION(NV_MOSAIC_DISPLAY_TOPO_STATUS, 1)


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_ValidateDisplayGrids
    //
    //! DESCRIPTION:     Determines if a list of grid topologies is valid. It will choose an SLI
    //!                  configuration in the same way that NvAPI_Mosaic_SetDisplayGrids() does.
    //!
    //!                  On return, each element in the pTopoStatus array will contain any errors or
    //!                  warnings about each grid topology. If any error flags are set, then the topology
    //!                  is not valid. If any warning flags are set, then the topology is valid, but
    //!                  sub-optimal.
    //!
    //!                  If the ALLOW_INVALID flag is set, then it will continue to validate the grids
    //!                  even if no SLI configuration will allow all of the grids. In this case, a grid
    //!                  grid with no matching GPU topology will have the error
    //!                  flags NO_GPU_TOPOLOGY or NOT_SUPPORTED set.
    //!
    //!                  If the ALLOW_INVALID flag is not set and no matching SLI configuration is
    //!                  found, then it will skip the rest of the validation and return
    //!                  NVAPI_NO_ACTIVE_SLI_TOPOLOGY.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      setTopoFlags       Zero or more of the NVAPI_MOSAIC_SETDISPLAYTOPO_FLAG_*
    //!                                     flags.
    //! \param [in]      pGridTopologies    The array of grid topologies to verify.
    //! \param [in,out]  pTopoStatus        The array of problems and warnings with each grid topology.
    //! \param [in]      gridCount          The number of elements in the pGridTopologies and
    //!                                     pTopoStatus arrays.
    //!
    //!
    //! \retval ::NVAPI_OK:                          Capabilities have been returned.
    //! \retval ::NVAPI_INVALID_ARGUMENT:            One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INTIALIZED:          The NvAPI API needs to be initialized first
    //! \retval ::NVAPI_NO_IMPLEMENTATION:           This entrypoint not available
    //! \retval ::NVAPI_NO_ACTIVE_SLI_TOPOLOGY:      No matching GPU topologies could be found.
    //! \retval ::NVAPI_ERROR:                       Miscellaneous error occurred
    //!
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_ValidateDisplayGrids(__in NvU32 setTopoFlags,
                                                      __in_ecount(gridCount) NV_MOSAIC_GRID_TOPO *pGridTopologies,
                                                      __inout_ecount_full(gridCount) NV_MOSAIC_DISPLAY_TOPO_STATUS *pTopoStatus,
                                                      __in NvU32 gridCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_EnumDisplayModes
    //
    //! DESCRIPTION:     Determines the set of available display modes for a given grid topology.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      pGridTopology         The grid topology to use.
    //! \param [in,out]  pDisplaySettings      A pointer to an array of display settings to populate,
    //!                                        or NULL to find out the total number of available modes.
    //! \param [in,out]  pDisplayCount         If pDisplaySettings is not NULL, then pDisplayCount
    //!                                        should point to the number of elements in the
    //!                                        pDisplaySettings array. On return, it will contain the
    //!                                        number of modes that were actually returned. If
    //!                                        pDisplaySettings is NULL, then pDisplayCount will receive
    //!                                        the total number of modes that are available.
    //!
    //!
    //! \retval ::NVAPI_OK                          Capabilities have been returned.
    //! \retval ::NVAPI_INVALID_ARGUMENT            One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INTIALIZED          The NvAPI API needs to be initialized first
    //! \retval ::NVAPI_NO_IMPLEMENTATION           This entrypoint not available
    //! \retval ::NVAPI_ERROR                       Miscellaneous error occurred
    //!
    //! \ingroup mosaciapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_EnumDisplayModes(__in NV_MOSAIC_GRID_TOPO *pGridTopology,
                                                  __inout_ecount_part_opt(*pDisplayCount, *pDisplayCount) NV_MOSAIC_DISPLAY_SETTING *pDisplaySettings,
                                                  __inout NvU32 *pDisplayCount);

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_Mosaic_EnumDisplayGrids
    //
    //! DESCRIPTION:     Enumerates the current active grid topologies. This includes Mosaic, IG, and
    //!                  Panoramic topologies, as well as single displays.
    //!
    //!                  If pGridTopologies is NULL, then pGridCount will be set to the number of active
    //!                  grid topologies.
    //!
    //!                  If pGridTopologies is not NULL, then pGridCount contains the maximum number of
    //!                  grid topologies to return. On return, pGridCount will be set to the number of
    //!                  grid topologies that were returned.
    //!
    //! \param [out]     pGridTopologies   The list of active grid topologies.
    //! \param [in,out]  pGridCount        A pointer to the number of grid topologies returned.
    //!
    //! \retval ::NVAPI_OK                          Capabilties have been returned.
    //! \retval ::NVAPI_END_ENUMERATION             There are no more topologies to return.
    //! \retval ::NVAPI_INVALID_ARGUMENT            One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INTIALIZED          The NvAPI API needs to be initialized first
    //! \retval ::NVAPI_NO_IMPLEMENTATION           This entrypoint not available
    //! \retval ::NVAPI_ERROR                       Miscellaneous error occurred
    //!
    //! \ingroup mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Mosaic_EnumDisplayGrids(__inout_ecount_part_opt(*pGridCount, *pGridCount) NV_MOSAIC_GRID_TOPO *pGridTopologies,
                                                  __inout NvU32 *pGridCount);

////////////////////////////////////////////////////////////////////////////////////////
//
// ###########################################################################
// DELME_RUSS - DELME_RUSS - DELME_RUSS - DELME_RUSS - DELME_RUSS - DELME_RUSS
//
//   Below is the Phase 1 Mosaic stuff, the Phase 2 stuff above is what will remain
//   once Phase 2 is complete.  For a small amount of time, the two will co-exist.  As
//   soon as apps (nvapichk, NvAPITestMosaic, and CPL) are updated to use the Phase 2
//   entrypoints, the code below will be deleted.
//
// DELME_RUSS - DELME_RUSS - DELME_RUSS - DELME_RUSS - DELME_RUSS - DELME_RUSS
// ###########################################################################
//
// Supported topos 1x4, 4x1 and 2x2 to start with.
//
// Selected scan out targets can be one per GPU or more than one on the same GPU.
//
// SAMPLE of MOSAIC 1x4 SCAN OUT TOPO with 8 pixel horizontal overlap
//
//+-------------------------++-------------------------++-------------------------++-------------------------+
//|                         ||                         ||                         ||                         |
//|                         ||                         ||                         ||                         |
//|                         ||                         ||                         ||                         |
//|        DVI1             ||           DVI2          ||         DVI3            ||          DVI4           |
//|                         ||                         ||                         ||                         |
//|                         ||                         ||                         ||                         |
//|                         ||                         ||                         ||                         |
//|                         ||                         ||                         ||                         |
//+-------------------------++-------------------------++-------------------------++-------------------------+

//! \addtogroup mosaicapi
//! @{

//! Used in NV_MOSAIC_TOPOLOGY.
#define NVAPI_MAX_MOSAIC_DISPLAY_ROWS 8


//! Used in NV_MOSAIC_TOPOLOGY.
#define NVAPI_MAX_MOSAIC_DISPLAY_COLUMNS 8


//! Used in NV_MOSAIC_TOPOLOGY.
#define NVAPI_MAX_MOSAIC_TOPOS 16


    //! Used in NvAPI_GetCurrentMosaicTopology() and NvAPI_SetCurrentMosaicTopology().
    typedef struct
    {
        NvU32 version;  //!< Version number of the mosaic topology
        NvU32 rowCount; //!< Horizontal display count
        NvU32 colCount; //!< Vertical display count

        struct
        {
            NvPhysicalGpuHandle hPhysicalGPU; //!< Physical GPU to be used in the topology
            NvU32 displayOutputId;            //!< Connected display target
            NvS32 overlapX;                   //!< Pixels of overlap on the left of target: (+overlap, -gap)
            NvS32 overlapY;                   //!< Pixels of overlap on the top of target: (+overlap, -gap)

        } gpuLayout[NVAPI_MAX_MOSAIC_DISPLAY_ROWS][NVAPI_MAX_MOSAIC_DISPLAY_COLUMNS];

    } NV_MOSAIC_TOPOLOGY;

//! Used in NV_MOSAIC_TOPOLOGY.
#define NVAPI_MOSAIC_TOPOLOGY_VER MAKE_NVAPI_VERSION(NV_MOSAIC_TOPOLOGY, 1)


    //! Used in NvAPI_GetSupportedMosaicTopologies().
    typedef struct
    {
        NvU32 version;
        NvU32 totalCount;                                 //!< Count of valid topologies
        NV_MOSAIC_TOPOLOGY topos[NVAPI_MAX_MOSAIC_TOPOS]; //!< Maximum number of topologies

    } NV_MOSAIC_SUPPORTED_TOPOLOGIES;

//! Used in NV_MOSAIC_SUPPORTED_TOPOLOGIES.
#define NVAPI_MOSAIC_SUPPORTED_TOPOLOGIES_VER MAKE_NVAPI_VERSION(NV_MOSAIC_SUPPORTED_TOPOLOGIES, 1)


    //!@}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GetSupportedMosaicTopologies
    //
    //! DESCRIPTION:     This API returns all valid Mosaic topologies.
    //!
    //! SUPPORTED OS:  Windows XP
    //!
    //!
    //! \since Release: 177
    //!
    //! \param [out] pMosaicTopos                   An array of valid Mosaic topologies.
    //!
    //! \retval      NVAPI_OK                       Call succeeded; 1 or more topologies were returned
    //! \retval      NVAPI_INVALID_ARGUMENT         One or more arguments are invalid
    //! \retval      NVAPI_MIXED_TARGET_TYPES       Mosaic topology is only possible with all targets of the same NV_GPU_OUTPUT_TYPE.
    //! \retval      NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \retval      NVAPI_NOT_SUPPORTED            Mosaic is not supported with GPUs on this system.
    //! \retval      NVAPI_NO_ACTIVE_SLI_TOPOLOGY   SLI is not enabled, yet needs to be, in order for this function to succeed.
    //!
    //! \ingroup     mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetSupportedMosaicTopologies(NV_MOSAIC_SUPPORTED_TOPOLOGIES *pMosaicTopos);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_GetCurrentMosaicTopology
    //
    //! DESCRIPTION:     This API gets the current Mosaic topology.
    //!
    //! SUPPORTED OS:  Windows XP
    //!
    //!
    //! \since Release: 177
    //!
    //! \param [out] pMosaicTopo                    The current Mosaic topology
    //! \param [out] pEnabled                       TRUE if returned topology is currently enabled, else FALSE
    //!
    //! \retval      NVAPI_OK                       Call succeeded
    //! \retval      NVAPI_INVALID_ARGUMENT         One or more arguments are invalid
    //! \retval      NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \retval      NVAPI_NOT_SUPPORTED            Mosaic is not supported with GPUs on this system.
    //! \retval      NVAPI_NO_ACTIVE_SLI_TOPOLOGY   SLI is not enabled, yet needs to be, in order for this function to succeed.
    //!
    //! \ingroup     mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GetCurrentMosaicTopology(NV_MOSAIC_TOPOLOGY *pMosaicTopo, NvU32 *pEnabled);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_SetCurrentMosaicTopology
    //
    //! DESCRIPTION:     This API sets the Mosaic topology, and enables it so that the
    //!                  Mosaic display settings are enumerated upon request.
    //!
    //! SUPPORTED OS:  Windows XP
    //!
    //!
    //! \since Release: 177
    //!
    //! \param [in]  pMosaicTopo                    A valid Mosaic topology
    //!
    //! \retval      NVAPI_OK                       Call succeeded
    //! \retval      NVAPI_INVALID_ARGUMENT         One or more arguments are invalid
    //! \retval      NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \retval      NVAPI_NOT_SUPPORTED            Mosaic is not supported with GPUs on this system.
    //! \retval      NVAPI_NO_ACTIVE_SLI_TOPOLOGY   SLI is not enabled, yet needs to be, in order for this function to succeed.
    //!
    //! \ingroup     mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_SetCurrentMosaicTopology(NV_MOSAIC_TOPOLOGY *pMosaicTopo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_EnableCurrentMosaicTopology
    //
    //! DESCRIPTION:    This API enables or disables the current Mosaic topology.
    //!                 When enabling, the last Mosaic topology will be set.
    //!
    //!                  - If enabled, enumeration of display settings will include valid Mosaic resolutions.
    //!                  - If disabled, enumeration of display settings will not include Mosaic resolutions.
    //!
    //! SUPPORTED OS:  Windows XP
    //!
    //!
    //! \since Release: 177
    //!
    //! \param [in]  enable                         TRUE to enable the Mosaic Topology, FALSE to disable it.
    //!
    //! \retval      NVAPI_OK                       Call succeeded
    //! \retval      NVAPI_INVALID_ARGUMENT         One or more arguments are invalid
    //! \retval      NVAPI_NVIDIA_DEVICE_NOT_FOUND  No NVIDIA GPU driving a display was found
    //! \retval      NVAPI_NOT_SUPPORTED            Mosaic is not supported with GPUs on this system.
    //! \retval      NVAPI_NO_ACTIVE_SLI_TOPOLOGY   SLI is not enabled, yet needs to be, in order for this function to succeed.
    //!
    //! \ingroup     mosaicapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_EnableCurrentMosaicTopology(NvU32 enable);

#define NVAPI_MAX_GSYNC_DEVICES 4


    // Sync Display APIs

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_EnumSyncDevices
    //
    //!   DESCRIPTION: This API returns an array of Sync device handles. A Sync device handle represents a
    //!                single Sync device on the system.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [out] nvGSyncHandles-  The caller provides an array of handles, which must contain at least
    //!                               NVAPI_MAX_GSYNC_DEVICES elements. The API will zero out the entire array and then fill in one
    //!                               or more handles. If an error occurs, the array is invalid.
    //! \param [out] *gsyncCount-     The caller provides the storage space. NvAPI_GSync_EnumSyncDevices
    //!                               sets *gsyncCount to indicate how many of the elements in the nvGSyncHandles[] array are valid.
    //!                               If an error occurs, *gsyncCount will be set to zero.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_INVALID_ARGUMENT         nvGSyncHandles or gsyncCount is NULL.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND  The queried Graphics system does not have any Sync Device.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_EnumSyncDevices(__out NvGSyncDeviceHandle nvGSyncHandles[NVAPI_MAX_GSYNC_DEVICES], __out NvU32 *gsyncCount);

// GSync boardId values
#define NVAPI_GSYNC_BOARD_ID_P358 856   //!< GSync board ID 0x358, see NV_GSYNC_CAPABILITIES

#define NVAPI_GSYNC_BOARD_ID_P2060 8288 //!< GSync board ID 0x2060, see NV_GSYNC_CAPABILITIES


//! \since Release: 375
#define NVAPI_GSYNC_BOARD_ID_P2061 8289 //!< GSync board ID 0x2061, see NV_GSYNC_CAPABILITIES


    //! Used in NvAPI_GSync_QueryCapabilities().
    typedef struct _NV_GSYNC_CAPABILITIES_V1
    {
        NvU32 version;  //!< Version of the structure
        NvU32 boardId;  //!< Board ID
        NvU32 revision; //!< FPGA Revision
        NvU32 capFlags; //!< Capabilities of the Sync board. Reserved for future use
    } NV_GSYNC_CAPABILITIES_V1;

    typedef struct _NV_GSYNC_CAPABILITIES_V2
    {
        NvU32 version;          //!< Version of the structure
        NvU32 boardId;          //!< Board ID
        NvU32 revision;         //!< FPGA major revision
        NvU32 capFlags;         //!< Capabilities of the Sync board. Reserved for future use
        NvU32 extendedRevision; //!< FPGA minor revision
    } NV_GSYNC_CAPABILITIES_V2;

    typedef NV_GSYNC_CAPABILITIES_V2 NV_GSYNC_CAPABILITIES;

//! \ingroup gsyncapi
//! Macro for constructing the version field of NV_GSYNC_CAPABILITIES.
#define NV_GSYNC_CAPABILITIES_VER1 MAKE_NVAPI_VERSION(NV_GSYNC_CAPABILITIES_V1, 1)

#define NV_GSYNC_CAPABILITIES_VER2 MAKE_NVAPI_VERSION(NV_GSYNC_CAPABILITIES_V2, 2)

#define NV_GSYNC_CAPABILITIES_VER NV_GSYNC_CAPABILITIES_VER2


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_QueryCapabilities
    //
    //!   DESCRIPTION: This API returns the capabilities of the Sync device.
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]    hNvGSyncDevice-        The handle for a Sync device for which the capabilities will be queried.
    //! \param [inout] *pNvGSyncCapabilities- The caller provides the storage space. NvAPI_GSync_QueryCapabilities() sets
    //!                                       *pNvGSyncCapabilities to the version and capabilities details of the Sync device
    //!                                       If an error occurs, *pNvGSyncCapabilities will be set to NULL.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_INVALID_ARGUMENT         hNvGSyncDevice is NULL.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND  The queried Graphics system does not have any Sync Device.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_QueryCapabilities(__in NvGSyncDeviceHandle hNvGSyncDevice, __inout NV_GSYNC_CAPABILITIES *pNvGSyncCapabilities);

    //! Connector values for a GPU. Used in NV_GSYNC_GPU.
    typedef enum _NVAPI_GSYNC_GPU_TOPOLOGY_CONNECTOR
    {
        NVAPI_GSYNC_GPU_TOPOLOGY_CONNECTOR_NONE = 0,
        NVAPI_GSYNC_GPU_TOPOLOGY_CONNECTOR_PRIMARY = 1,
        NVAPI_GSYNC_GPU_TOPOLOGY_CONNECTOR_SECONDARY = 2,
        NVAPI_GSYNC_GPU_TOPOLOGY_CONNECTOR_TERTIARY = 3,
        NVAPI_GSYNC_GPU_TOPOLOGY_CONNECTOR_QUARTERNARY = 4,
    } NVAPI_GSYNC_GPU_TOPOLOGY_CONNECTOR;

    //! Display sync states. Used in NV_GSYNC_DISPLAY.
    typedef enum _NVAPI_GSYNC_DISPLAY_SYNC_STATE
    {
        NVAPI_GSYNC_DISPLAY_SYNC_STATE_UNSYNCED = 0,
        NVAPI_GSYNC_DISPLAY_SYNC_STATE_SLAVE = 1,
        NVAPI_GSYNC_DISPLAY_SYNC_STATE_MASTER = 2,
    } NVAPI_GSYNC_DISPLAY_SYNC_STATE;

    typedef struct _NV_GSYNC_GPU
    {
        NvU32 version;                                //!< Version of the structure
        NvPhysicalGpuHandle hPhysicalGpu;             //!< GPU handle
        NVAPI_GSYNC_GPU_TOPOLOGY_CONNECTOR connector; //!< Indicates which connector on the device the GPU is connected to.
        NvPhysicalGpuHandle hProxyPhysicalGpu;        //!< GPU through which hPhysicalGpu is connected to the Sync device (if not directly connected)
                                                      //!<  - this is NULL otherwise
        NvU32 isSynced : 1;                           //!< Whether this GPU is sync'd or not.
        NvU32 reserved : 31;                          //!< Should be set to ZERO
    } NV_GSYNC_GPU;

    typedef struct _NV_GSYNC_DISPLAY
    {
        NvU32 version;                            //!< Version of the structure
        NvU32 displayId;                          //!< display identifier for displays.The GPU to which it is connected, can be retireved from NvAPI_SYS_GetPhysicalGpuFromDisplayId
        NvU32 isMasterable : 1;                   //!< Can this display be the master? (Read only)
        NvU32 reserved : 31;                      //!< Should be set to ZERO
        NVAPI_GSYNC_DISPLAY_SYNC_STATE syncState; //!< Is this display slave/master
                                                  //!< (Retrieved with topology or set by caller for enable/disable sync)
    } NV_GSYNC_DISPLAY;

#define NV_GSYNC_DISPLAY_VER MAKE_NVAPI_VERSION(NV_GSYNC_DISPLAY, 1)

#define NV_GSYNC_GPU_VER MAKE_NVAPI_VERSION(NV_GSYNC_GPU, 1)


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_GetTopology
    //
    //!   DESCRIPTION: This API returns the topology for the specified Sync device.
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]       hNvGSyncDevice-     The caller provides the handle for a Sync device for which the topology will be queried.
    //! \param [in, out]  gsyncGpuCount-      It returns number of GPUs connected to Sync device
    //! \param [in, out]  gsyncGPUs-          It returns info about GPUs connected to Sync device
    //! \param [in, out]  gsyncDisplayCount-  It returns number of active displays that belongs to Sync device
    //! \param [in, out]  gsyncDisplays-      It returns info about all active displays that belongs to Sync device
    //!
    //! HOW TO USE: 1) make a call to get the number of GPUs connected OR displays synced through Sync device
    //!                by passing the gsyncGPUs OR gsyncDisplays as NULL respectively. Both gsyncGpuCount and gsyncDisplayCount can be retrieved in same call by passing
    //!                both gsyncGPUs and gsyncDisplays as NULL
    //!                On call success:
    //!             2) Allocate memory based on gsyncGpuCount(for gsyncGPUs) and/or gsyncDisplayCount(for gsyncDisplays) then make a call to populate gsyncGPUs and/or gsyncDisplays respectively.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_INVALID_ARGUMENT               hNvGSyncDevice is NULL.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND        The queried Graphics system does not have any Sync Device.
    //! \retval ::NVAPI_INSUFFICIENT_BUFFER            When the actual number of GPUs/displays in the topology exceed the number of elements allocated for SyncGPUs/SyncDisplays respectively.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_GetTopology(__in NvGSyncDeviceHandle hNvGSyncDevice, __inout_opt NvU32 *gsyncGpuCount, __inout_ecount_part_opt(*gsyncGpuCount, *gsyncGpuCount) NV_GSYNC_GPU *gsyncGPUs,
                                            __inout_opt NvU32 *gsyncDisplayCount, __inout_ecount_part_opt(*gsyncDisplayCount, *gsyncDisplayCount) NV_GSYNC_DISPLAY *gsyncDisplays);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_SetSyncStateSettings
    //
    //!   DESCRIPTION: Sets a new sync state for the displays in system.
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]  gsyncDisplayCount-			The number of displays in gsyncDisplays.
    //! \param [in]  pGsyncDisplays-			The caller provides the structure containing all displays that need to be synchronized in the system.
    //!											The displays that are not part of pGsyncDisplays, will be un-synchronized.
    //! \param [in]  flags-						Reserved for future use.
    //!
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \retval ::NVAPI_INVALID_ARGUMENT			If the display topology or count not valid.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND		The queried Graphics system does not have any Sync Device.
    //! \retval ::NVAPI_INVALID_SYNC_TOPOLOGY       1.If any mosaic grid is partial.
    //!                                             2.If timing(HVisible/VVisible/refreshRate) applied of any display is different.
    //!                                             3.If There is a across GPU mosaic grid in system and that is not a part of pGsyncDisplays.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_SetSyncStateSettings(__in NvU32 gsyncDisplayCount, __in_ecount(gsyncDisplayCount) NV_GSYNC_DISPLAY *pGsyncDisplays, __in NvU32 flags);

    //! \ingroup gsyncapi

    //! Source signal edge to be used for output pulse. See NV_GSYNC_CONTROL_PARAMS.
    typedef enum _NVAPI_GSYNC_POLARITY
    {
        NVAPI_GSYNC_POLARITY_RISING_EDGE = 0,
        NVAPI_GSYNC_POLARITY_FALLING_EDGE = 1,
        NVAPI_GSYNC_POLARITY_BOTH_EDGES = 2,
    } NVAPI_GSYNC_POLARITY;

    //! Used in NV_GSYNC_CONTROL_PARAMS.
    typedef enum _NVAPI_GSYNC_VIDEO_MODE
    {
        NVAPI_GSYNC_VIDEO_MODE_NONE = 0,
        NVAPI_GSYNC_VIDEO_MODE_TTL = 1,
        NVAPI_GSYNC_VIDEO_MODE_NTSCPALSECAM = 2,
        NVAPI_GSYNC_VIDEO_MODE_HDTV = 3,
        NVAPI_GSYNC_VIDEO_MODE_COMPOSITE = 4,
    } NVAPI_GSYNC_VIDEO_MODE;

    //! Used in NV_GSYNC_CONTROL_PARAMS.
    typedef enum _NVAPI_GSYNC_SYNC_SOURCE
    {
        NVAPI_GSYNC_SYNC_SOURCE_VSYNC = 0,
        NVAPI_GSYNC_SYNC_SOURCE_HOUSESYNC = 1,
    } NVAPI_GSYNC_SYNC_SOURCE;

    //! Used in NV_GSYNC_CONTROL_PARAMS.
    typedef struct _NV_GSYNC_DELAY
    {
        NvU32 version;   //!< Version of the structure
        NvU32 numLines;  //!< delay to be induced in number of horizontal lines.
        NvU32 numPixels; //!< delay to be induced in number of pixels.
        NvU32 maxLines;  //!< maximum number of lines supported at current display mode to induce delay. Updated by NvAPI_GSync_GetControlParameters(). Read only.
        NvU32 minPixels; //!< minimum number of pixels required at current display mode to induce delay. Updated by NvAPI_GSync_GetControlParameters(). Read only.
    } NV_GSYNC_DELAY;

#define NV_GSYNC_DELAY_VER MAKE_NVAPI_VERSION(NV_GSYNC_DELAY, 1)


    //! Used in NvAPI_GSync_GetControlParameters() and NvAPI_GSync_SetControlParameters().
    typedef struct _NV_GSYNC_CONTROL_PARAMS
    {
        NvU32 version;                  //!< Version of the structure
        NVAPI_GSYNC_POLARITY polarity;  //!< Leading edge / Falling edge / both
        NVAPI_GSYNC_VIDEO_MODE vmode;   //!< None, TTL, NTSCPALSECAM, HDTV
        NvU32 interval;                 //!< Number of pulses to wait between framelock signal generation
        NVAPI_GSYNC_SYNC_SOURCE source; //!< VSync/House sync
        NvU32 interlaceMode : 1;        //!< interlace mode for a Sync device
        NvU32 syncSourceIsOutput : 1;   //!< Set this to make house sync as an output; valid only when NV_GSYNC_CONTROL_PARAMS::source is NVAPI_GSYNC_SYNC_SOURCE_VSYNC on P2061 boards.
                                        //!< syncSourceIsOutput should always be NVAPI_GSYNC_SYNC_SOURCE_HOUSESYNC i.e. 0 on P2060 boards or when NV_GSYNC_CONTROL_PARAMS::source is set to NVAPI_GSYNC_SYNC_SOURCE_HOUSESYNC.
        NvU32 reserved : 30;            //!< should be set zero
        NV_GSYNC_DELAY syncSkew;        //!< The time delay between the frame sync signal and the GPUs signal.
        NV_GSYNC_DELAY startupDelay;    //!< Sync start delay for master.
    } NV_GSYNC_CONTROL_PARAMS;

#define NV_GSYNC_CONTROL_PARAMS_VER MAKE_NVAPI_VERSION(NV_GSYNC_CONTROL_PARAMS, 1)


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_GetControlParameters
    //
    //!   DESCRIPTION: This API queries for sync control parameters as defined in NV_GSYNC_CONTROL_PARAMS.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]    hNvGSyncDevice-   The caller provides the handle of the Sync device for which to get parameters
    //! \param [inout] *pGsyncControls-  The caller provides the storage space. NvAPI_GSync_GetControlParameters() populates *pGsyncControls with values.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_INVALID_ARGUMENT          hNvGSyncDevice is NULL.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND   The queried Graphics system does not have any Sync Device.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_GetControlParameters(__in NvGSyncDeviceHandle hNvGSyncDevice, __inout NV_GSYNC_CONTROL_PARAMS *pGsyncControls);

    //////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_SetControlParameters
    //
    //!   DESCRIPTION: This API sets control parameters as defined in NV_SYNC_CONTROL_PARAMS.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]  hNvGSyncDevice-   The caller provides the handle of the Sync device for which to get parameters
    //! \param [inout]  *pGsyncControls-  The caller provides NV_GSYNC_CONTROL_PARAMS. skew and startDelay will be updated to the applied values.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_INVALID_ARGUMENT          hNvGSyncDevice is NULL.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND   The queried Graphics system does not have any Sync Device.
    //! \retval ::NVAPI_SYNC_MASTER_NOT_FOUND     Control Parameters can only be set if there is a Sync Master enabled on the Gsync card.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_SetControlParameters(__in NvGSyncDeviceHandle hNvGSyncDevice, __inout NV_GSYNC_CONTROL_PARAMS *pGsyncControls);

    //! Used in NvAPI_GSync_AdjustSyncDelay()
    typedef enum _NVAPI_GSYNC_DELAY_TYPE
    {
        NVAPI_GSYNC_DELAY_TYPE_UNKNOWN = 0,
        NVAPI_GSYNC_DELAY_TYPE_SYNC_SKEW = 1,
        NVAPI_GSYNC_DELAY_TYPE_STARTUP = 2
    } NVAPI_GSYNC_DELAY_TYPE;

    //////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_AdjustSyncDelay
    //
    //!   DESCRIPTION: This API adjusts the skew and startDelay to the closest possible values. Use this API before calling NvAPI_GSync_SetControlParameters for skew or startDelay.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 319
    //!
    //! \param [in]  hNvGSyncDevice-   	The caller provides the handle of the Sync device for which to get parameters
    //! \param [in]  delayType-   		Specifies whether the delay is syncSkew or startupDelay.
    //! \param [inout]  *pGsyncDelay-  	The caller provides NV_GSYNC_DELAY. skew and startDelay will be adjusted and updated to the closest values.
    //! \param [out]  *syncSteps-  		This parameter is optional. It returns the sync delay in unit steps. If 0, it means either the NV_GSYNC_DELAY::numPixels is less than NV_GSYNC_DELAY::minPixels or NV_GSYNC_DELAY::numOfLines exceeds the NV_GSYNC_DELAY::maxLines.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_AdjustSyncDelay(__in NvGSyncDeviceHandle hNvGSyncDevice, __in NVAPI_GSYNC_DELAY_TYPE delayType, __inout NV_GSYNC_DELAY *pGsyncDelay, __out_opt NvU32 *syncSteps);

    //! Used in NvAPI_GSync_GetSyncStatus().
    typedef struct _NV_GSYNC_STATUS
    {
        NvU32 version;                //!< Version of the structure
        NvU32 bIsSynced;              //!< Is timing in sync?
        NvU32 bIsStereoSynced;        //!< Does the phase of the timing signal from the GPU = the phase of the master sync signal?
        NvU32 bIsSyncSignalAvailable; //!< Is the sync signal available?
    } NV_GSYNC_STATUS;

//! Macro for constructing the version field for NV_GSYNC_STATUS.
#define NV_GSYNC_STATUS_VER MAKE_NVAPI_VERSION(NV_GSYNC_STATUS, 1)


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_GetSyncStatus
    //
    //!   DESCRIPTION: This API queries the sync status of a GPU - timing, stereosync and sync signal availability.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]  hNvGSyncDevice-     Handle of the Sync device
    //! \param [in]  hPhysicalGpu-       GPU to be queried for sync status.
    //! \param [out] *status-            The caller provides the storage space. NvAPI_GSync_GetSyncStatus() populates *status with
    //!                                  values - timing, stereosync and signal availability. On error, *status is set to NULL.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_INVALID_ARGUMENT          hNvGSyncDevice is NULL / SyncTarget is NULL.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND   The queried Graphics system does not have any G-Sync Device.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_GetSyncStatus(__in NvGSyncDeviceHandle hNvGSyncDevice, __in NvPhysicalGpuHandle hPhysicalGpu, __inout NV_GSYNC_STATUS *status);

    //! \ingroup gsyncapi

#define NVAPI_MAX_RJ45_PER_GSYNC 2


    //! Used in NV_GSYNC_STATUS_PARAMS.
    typedef enum _NVAPI_GSYNC_RJ45_IO
    {
        NVAPI_GSYNC_RJ45_OUTPUT = 0,
        NVAPI_GSYNC_RJ45_INPUT = 1,
        NVAPI_GSYNC_RJ45_UNUSED = 2 //!< This field is used to notify that the framelock is not actually present.

    } NVAPI_GSYNC_RJ45_IO;

    //! \ingroup gsyncapi
    //! Used in NvAPI_GSync_GetStatusParameters().
    typedef struct _NV_GSYNC_STATUS_PARAMS_V1
    {
        NvU32 version;
        NvU32 refreshRate;                                     //!< The refresh rate
        NVAPI_GSYNC_RJ45_IO RJ45_IO[NVAPI_MAX_RJ45_PER_GSYNC]; //!< Configured as input / output
        NvU32 RJ45_Ethernet[NVAPI_MAX_RJ45_PER_GSYNC];         //!< Connected to ethernet hub? [ERRONEOUSLY CONNECTED!]
        NvU32 houseSyncIncoming;                               //!< Incoming house sync frequency in Hz
        NvU32 bHouseSync;                                      //!< Is house sync connected?
    } NV_GSYNC_STATUS_PARAMS_V1;

    typedef struct _NV_GSYNC_STATUS_PARAMS_V2
    {
        NvU32 version;
        NvU32 refreshRate;                                     //!< The refresh rate
        NVAPI_GSYNC_RJ45_IO RJ45_IO[NVAPI_MAX_RJ45_PER_GSYNC]; //!< Configured as input / output
        NvU32 RJ45_Ethernet[NVAPI_MAX_RJ45_PER_GSYNC];         //!< Connected to ethernet hub? [ERRONEOUSLY CONNECTED!]
        NvU32 houseSyncIncoming;                               //!< Incoming house sync frequency in Hz
        NvU32 bHouseSync;                                      //!< Is house sync connected?
        NvU32 bInternalSlave : 1;                              //!< Valid only for P2061 board.
                                                               //!< If set to 1, it means that this P2061 board receives input from another P2061 board.
        NvU32 reserved : 31;                                   //!< Reserved for future use.
    } NV_GSYNC_STATUS_PARAMS_V2;

    typedef NV_GSYNC_STATUS_PARAMS_V2 NV_GSYNC_STATUS_PARAMS;

//! \ingroup gsyncapi
//! Macro for constructing the version field of NV_GSYNC_STATUS_PARAMS
#define NV_GSYNC_STATUS_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_GSYNC_STATUS_PARAMS_V1, 1)

#define NV_GSYNC_STATUS_PARAMS_VER2 MAKE_NVAPI_VERSION(NV_GSYNC_STATUS_PARAMS_V2, 2)

#define NV_GSYNC_STATUS_PARAMS_VER NV_GSYNC_STATUS_PARAMS_VER2


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GSync_GetStatusParameters
    //
    //!   DESCRIPTION: This API queries for sync status parameters as defined in NV_GSYNC_STATUS_PARAMS.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]  hNvGSyncDevice   The caller provides the handle of the GSync device for which to get parameters
    //! \param [out] *pStatusParams   The caller provides the storage space. NvAPI_GSync_GetStatusParameters populates *pStatusParams with
    //!                               values.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_INVALID_ARGUMENT            hNvGSyncDevice is NULL / pStatusParams is NULL.
    //! \retval ::NVAPI_NVIDIA_DEVICE_NOT_FOUND     The queried Graphics system does not have any GSync Device.
    //!
    //! \ingroup gsyncapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GSync_GetStatusParameters(NvGSyncDeviceHandle hNvGSyncDevice, NV_GSYNC_STATUS_PARAMS *pStatusParams);

    //! @}

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_D3D9_RegisterResource
    //
    //! DESCRIPTION:    This API binds a resource (surface/texture) so that it can be retrieved
    //!                 internally by NVAPI.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! \param [in]     pResource      surface/texture
    //!
    //! \return ::NVAPI_OK, ::NVAPI_ERROR
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_RegisterResource(IDirect3DResource9 *pResource);
#endif // defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_D3D9_UnregisterResource
    //
    //! DESCRIPTION:     This API unbinds a resource (surface/texture) after use.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     pResource    surface/texture
    //!
    //! \return ::NVAPI_OK, ::NVAPI_ERROR
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_UnregisterResource(IDirect3DResource9 *pResource);

#endif // defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_AliasSurfaceAsTexture
    //
    //! \fn NvAPI_D3D9_AliasSurfaceAsTexture(IDirect3DDevice9* pDev,
    //!                                              IDirect3DSurface9* pSurface,
    //!                                              IDirect3DTexture9 **ppTexture,
    //!                                              DWORD dwFlag);
    //!   DESCRIPTION: Create a texture that is an alias of a surface registered with NvAPI.  The
    //!                new texture can be bound with IDirect3DDevice9::SetTexture().  Note that the texture must
    //!                be unbound before drawing to the surface again.
    //!                Unless the USE_SUPER flag is passed, MSAA surfaces will be resolved before
    //!                being used as a texture.  MSAA depth buffers are resolved with a point filter,
    //!                and non-depth MSAA surfaces are resolved with a linear filter.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]    pDev         The D3D device that owns the objects
    //! \param [in]    pSurface     Pointer to a surface that has been registered with NvAPI
    //!                             to which a texture alias is to be provided
    //! \param [out]   ppTexture    Fill with the texture created
    //! \param [in]    dwFlag       NVAPI_ALIAS_SURFACE_FLAG to describe how to handle the texture
    //!
    //! \retval ::NVAPI_OK                  completed request
    //! \retval ::NVAPI_INVALID_POINTER     A null pointer was passed as an argument
    //! \retval ::NVAPI_INVALID_ARGUMENT    One of the arguments was invalid, probably dwFlag.
    //! \retval ::NVAPI_UNREGISTERED_RESOURCE pSurface has not been registered with NvAPI
    //! \retval ::NVAPI_ERROR               error occurred
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup dx
    //! See NvAPI_D3D9_AliasSurfaceAsTexture().
    typedef enum
    {
        NVAPI_ALIAS_SURFACE_FLAG_NONE = 0x00000000,
        NVAPI_ALIAS_SURFACE_FLAG_USE_SUPER = 0x00000001, //!< Use the surface's msaa buffer directly as a texture, rather than resolving. (This is much slower, but potentially has higher quality.)
        NVAPI_ALIAS_SURFACE_FLAG_MASK = 0x00000001
    } NVAPI_ALIAS_SURFACE_FLAG;

    //! \ingroup dx
    NVAPI_INTERFACE NvAPI_D3D9_AliasSurfaceAsTexture(IDirect3DDevice9 *pDev,
                                                     IDirect3DSurface9 *pSurface,
                                                     IDirect3DTexture9 **ppTexture,
                                                     DWORD dwFlag);
#endif // defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_D3D9_StretchRectEx
    //
    //! DESCRIPTION:     This API copies the contents of the source resource to the destination
    //!                  resource.  This function can convert
    //!                  between a wider range of surfaces than
    //!                  IDirect3DDevice9::StretchRect.  For example, it can copy
    //!                  from a depth/stencil surface to a texture.
    //!
    //!                  The source and destination resources *must* be registered
    //!                  with NvAPI before being used with NvAPI_D3D9_StretchRectEx().
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     pDevice             The D3D device that owns the objects.
    //! \param [in]     pSourceResource     Pointer to the source resource.
    //! \param [in]     pSrcRect            Defines the rectangle on the source to copy from.  If NULL, copy from the entire resource.
    //! \param [in]     pDestResource       Pointer to the destination resource.
    //! \param [in]     pDstRect            Defines the rectangle on the destination to copy to.  If NULL, copy to the entire resource.
    //! \param [in]     Filter              Choose a filtering method: D3DTEXF_NONE, D3DTEXF_POINT, D3DTEXF_LINEAR.
    //!
    //! \retval ::NVAPI_OK                       completed request
    //! \retval ::NVAPI_INVALID_POINTER          An invalid pointer was passed as an argument (probably NULL)
    //! \retval ::NVAPI_INVALID_ARGUMENT         One of the arguments was invalid
    //! \retval ::NVAPI_UNREGISTERED_RESOURCE    a resource was passed in without being registered
    //! \retval ::NVAPI_ERROR                    error occurred
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_StretchRectEx(IDirect3DDevice9 *pDevice,
                                             IDirect3DResource9 *pSourceResource,
                                             CONST RECT *pSourceRect,
                                             IDirect3DResource9 *pDestResource,
                                             CONST RECT *pDestRect,
                                             D3DTEXTUREFILTERTYPE Filter);

#endif // defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_D3D9_ClearRT
    //
    //! DESCRIPTION:     This API Clears the currently bound render target(s) with the
    //!                  given color
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     pDevice             The D3D device that owns the objects.
    //! \param [in]     dwNumRects          The no of rectangles to clear. If 0, clear the entire surface (clipped to viewport)
    //! \param [in]     pRects              Defines the rectangles to clear.  Should be NULL if dwNumRects == 0
    //! \param [in]     r                   red component of the clear color
    //! \param [in]     g                   green component of the clear color
    //! \param [in]     b                   blue component of the clear color
    //! \param [in]     a                   alpha component of the clear color
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_ClearRT(IDirect3DDevice9 *pDevice,
                                       NvU32 dwNumRects,
                                       CONST RECT *pRects,
                                       float r, float g, float b, float a);
#endif // if defined(_D3D9_H_)

#if defined(_D3D9_H_) && defined(__cplusplus)
    //! SUPPORTED OS:  Windows 7 and higher
    //!

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_GetSurfaceHandle
    //
    //!  This function gets the handle of a given surface. This handle uniquely
    //!  identifies the surface through all NvAPI entries.
    //!
    //!
    //! \since Release: 313
    //!
    //! \param [in]     pSurface  Surface to be identified
    //! \param [out]    pHandle    Will be filled by the return handle
    //!
    //! \return An int which could be an NvAPI status or DX HRESULT code
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_GetSurfaceHandle(IDirect3DSurface9 *pSurface,
                                                NVDX_ObjectHandle *pHandle);

#endif // defined(_D3D9_H_) && defined(__cplusplus)

#if defined(_D3D9_H_) && defined(__cplusplus)
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! \addtogroup dxvidcontrol
    //! @{

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION_NAME: NvAPI_D3D9_VideoSetStereoInfo
    //
    //! \fn NvAPI_D3D9_VideoSetStereoInfo(IDirect3DDevice9 *pDev,
    //!                                            NV_DX_VIDEO_STEREO_INFO *pStereoInfo);
    //! \code
    //!   DESCRIPTION: This api specifies the stereo format of a surface, so that the
    //!                surface could be used for stereo video processing or compositing.
    //!                In particular, this api could be used to link the left and right
    //!                views of a decoded picture.
    //!
    //! \since Release: 313
    //!
    //!         INPUT: pDev        - The device on which the stereo surface will be used
    //!                pStereoInfo - The stereo format of the surface
    //!
    //! RETURN STATUS: an int which could be an NvAPI status or DX HRESULT code
    //! \endcode
    ///////////////////////////////////////////////////////////////////////////////

#ifndef NV_STEREO_VIDEO_FORMAT_DEFINE
#define NV_STEREO_VIDEO_FORMAT_DEFINE


    typedef enum _NV_STEREO_VIDEO_FORMAT
    {
        NV_STEREO_VIDEO_FORMAT_NOT_STEREO = 0,

        NV_STEREO_VIDEO_FORMAT_SIDE_BY_SIDE_LR = 1,
        NV_STEREO_VIDEO_FORMAT_SIDE_BY_SIDE_RL = 2,
        NV_STEREO_VIDEO_FORMAT_TOP_BOTTOM_LR = 3,
        NV_STEREO_VIDEO_FORMAT_TOP_BOTTOM_RL = 4,
        NV_STEREO_VIDEO_FORMAT_ROW_INTERLEAVE_LR = 5,
        NV_STEREO_VIDEO_FORMAT_ROW_INTERLEAVE_RL = 6,
        NV_STEREO_VIDEO_FORMAT_TWO_FRAMES_LR = 7,
        NV_STEREO_VIDEO_FORMAT_MONO_PLUS_OFFSET = 8,

        NV_STEREO_VIDEO_FORMAT_LAST = 9,
    } NV_STEREO_VIDEO_FORMAT;

#endif // NV_STEREO_VIDEO_FORMAT_DEFINE

    typedef struct _NV_DX_VIDEO_STEREO_INFO
    {
        NvU32 dwVersion;                  //!< Must be NV_DX_VIDEO_STEREO_INFO_VER
        NVDX_ObjectHandle hSurface;       //!< The surface whose stereo format is to be set
        NVDX_ObjectHandle hLinkedSurface; //!< The linked surface (must be valid when eFormat==NV_STEREO_VIDEO_FORMAT_TWO_FRAMES_LR)
        NV_STEREO_VIDEO_FORMAT eFormat;   //!< Stereo format of the surface
        NvS32 sViewOffset;                //!< Signed offset of each view (positive offset indicating left view is shifted left)
        BOOL bStereoEnable;               //!< Whether stereo rendering should be enabled (if FALSE, only left view will be used)
    } NV_DX_VIDEO_STEREO_INFO;

//! Macro for constructing the version field of ::NV_DX_VIDEO_STEREO_INFO
#define NV_DX_VIDEO_STEREO_INFO_VER MAKE_NVAPI_VERSION(NV_DX_VIDEO_STEREO_INFO, 1)


    NVAPI_INTERFACE NvAPI_D3D9_VideoSetStereoInfo(IDirect3DDevice9 *pDev,
                                                  NV_DX_VIDEO_STEREO_INFO *pStereoInfo);

//! @}
#endif // defined(_D3D9_H_) && defined(__cplusplus)

#if defined(__cplusplus) && defined(__d3d10_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D10_SetDepthBoundsTest
    //
    //!   DESCRIPTION: This function enables/disables the depth bounds test.
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //!   \param [in]  pDev         The device to set the depth bounds test
    //!   \param [in]  bEnable      Enable(non-zero)/disable(zero) the depth bounds test
    //!   \param [in]  fMinDepth    The minimum depth for the depth bounds test
    //!   \param [in]  fMaxDepth    The maximum depth for the depth bounds test \n
    //!                             The valid values for fMinDepth and fMaxDepth
    //!                             are such that 0 <= fMinDepth <= fMaxDepth <= 1
    //!
    //!   \return NVAPI_OK if the depth bounds test was correctly enabled or disabled
    //!
    //!   \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D10_SetDepthBoundsTest(ID3D10Device *pDev,
                                                   NvU32 bEnable,
                                                   float fMinDepth,
                                                   float fMaxDepth);

#endif // defined(__cplusplus) && defined(__d3d10_h__)

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_IsNvShaderExtnOpCodeSupported
    //
    //!   DESCRIPTION: This function checks if a nv HLSL shader extension opcode is
    //!                supported on current hardware. List of opcodes is in nvShaderExtnEnums.h
    //!                To use Nvidia HLSL extensions the application must include nvHLSLExtns.h
    //!                in the hlsl shader code. See nvHLSLExtns.h for more details on supported opcodes.
    //!
    //!                This function can be called from a different thread than the one calling immediate device setstate functions.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]        pDev         The device on which to query for support,
    //!                                 should be a ID3D11Device+ device
    //! \param [in]        opCode       the opcode to check
    //! \param [out]       pSupported   true if supported, false otherwise
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::         NVAPI_OK if the call succeeded
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_IsNvShaderExtnOpCodeSupported(__in IUnknown *pDev,
                                                              __in NvU32 opCode,
                                                              __out bool *pSupported);

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_SetNvShaderExtnSlot
    //
    //!   DESCRIPTION: This function sets the fake UAV slot that is used by Nvidia HLSL
    //!                shader extensions globally. All createShader calls made to the driver after
    //!                setting this slot would treat writes/reads to this UAV in a
    //!                different way. Applications are expected to bind null UAV to this slot.
    //!                The same slot is used for all shader stages.
    //!                To disable shader extensions the app need to set this uav slot to 0xFFFFFFFF.
    //!                To use Nvidia HLSL extensions the application must include nvHLSLExtns.h
    //!                in the hlsl shader code. See nvHLSLExtns.h for more details.
    //!
    //!                This function can be called from a different thread than the one calling immediate device setstate functions.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]        pDev         The device for which to set the extension slot
    //!                                 should be a ID3D11Device+ device
    //! \param [in]        uavSlot      the uav slot to use
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::         NVAPI_OK    : success, the uavSlot was set sucessfully
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_SetNvShaderExtnSlot(__in IUnknown *pDev,
                                                    __in NvU32 uavSlot);

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

#if defined(__cplusplus) && defined(__d3d12_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_SetNvShaderExtnSlotSpace
    //
    //!   DESCRIPTION: This function is specifically created for ray tracing since we do not
    //!                currently support PSOs with DXR.
    //!                This function sets the device's fake UAV slot and space that is used by Nvidia HLSL
    //!                shader extensions globally. All state objects created by the driver after
    //!                setting this slot would treat writes/reads to this UAV in a
    //!                different way. Applications are expected to bind null UAV to this slot.
    //!                The same slot is used for all shader stages.
    //!                To disable shader extensions the app need to set this uav slot to 0xFFFFFFFF.
    //!                To use Nvidia HLSL extensions the application must include nvHLSLExtns.h
    //!                in the hlsl shader code. See nvHLSLExtns.h for more details.
    //!
    //!                This function can be called from a different thread than the one calling immediate device setstate functions.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]        pDev         The device for which to set the extension slot
    //!                                 should be a ID3D12Device+ device
    //! \param [in]        uavSlot      The uav slot to use
    //! \param [in]        uavSpace     The uav space to use
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::         NVAPI_OK    : success, the uavSlot and uavSpace were set sucessfully
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_SetNvShaderExtnSlotSpace(__in IUnknown *pDev,
                                                         __in NvU32 uavSlot,
                                                         __in NvU32 uavSpace);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_SetNvShaderExtnSlotSpaceLocalThread
    //
    //!   DESCRIPTION: This function is specifically created for ray tracing shaders since we do not
    //!                currently support PSOs with DXR.
    //!                This function sets the device's fake UAV slot that is used by Nvidia HLSL
    //!                shader extensions on local thread. All state objects created by the driver
    //!                on the same thread that call this function after setting this slot would treat writes/reads
    //!                to this UAV in a different way.
    //!                Applications are expected to bind null UAV to this slot.
    //!                The same slot is used for all shader stages for the device.
    //!                To disable shader extensions the app may set this uav slot to 0xFFFFFFFF.
    //!                To use Nvidia HLSL extensions the application must include nvHLSLExtns.h
    //!                in the hlsl shader code. See nvHLSLExtns.h for more details.
    //!
    //!                This function can be called from a different thread than the one calling immediate device setstate functions.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //!
    //! \since Release: 387
    //!
    //! \param [in]        pDev         The device for which to set the extension slot
    //!                                 should be a ID3D12Device+ device
    //! \param [in]        uavSlot      the uav slot to use
    //! \param [in]        uavSpace     the uav space to use
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::         NVAPI_OK    : success, the uavSlot and uavSpace were set sucessfully
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_SetNvShaderExtnSlotSpaceLocalThread(__in IUnknown *pDev,
                                                                    __in NvU32 uavSlot,
                                                                    __in NvU32 uavSpace);

#endif // defined (__cplusplus) && defined (__d3d12_h__)

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_SetNvShaderExtnSlotLocalThread
    //
    //!   DESCRIPTION: This function sets the fake UAV slot that is used by Nvidia HLSL
    //!                shader extensions on local thread. All createShader calls on the same thread
    //!                that calls this function after setting this slot would treat writes/reads
    //!                to this UAV in a different way.
    //!                Applications are expected to bind null UAV to this slot.
    //!                The same slot is used for all shader stages.
    //!                To disable shader extensions the app may set this uav slot to 0xFFFFFFFF.
    //!                To use Nvidia HLSL extensions the application must include nvHLSLExtns.h
    //!                in the hlsl shader code. See nvHLSLExtns.h for more details.
    //!
    //!                This function can be called from a different thread than the one calling immediate device setstate functions.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 387
    //!
    //! \param [in]        pDev         The device for which to set the extension slot
    //!                                 should be a ID3D11Device+ device
    //! \param [in]        uavSlot      the uav slot to use
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::         NVAPI_OK    : success, the uavSlot was set sucessfully
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_SetNvShaderExtnSlotLocalThread(__in IUnknown *pDev,
                                                               __in NvU32 uavSlot);

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_BeginUAVOverlapEx
    //
    //!   DESCRIPTION: Causes the driver to skip synchronization that is normally needed when accessing UAVs.
    //!                Applications must use this with caution otherwise this might cause data hazards when
    //!                multiple draw calls/compute shader launches are accessing same memory locations
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]        *pDeviceOrContext     pointer to D3D11 device, or D3D11 device context
    //! \param [in]        insertWFIFlags        bit fields to indicate which WFI would be inserted (gfx / compute / both).
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    typedef enum _NVAPI_D3D11_INSERTWFI_FLAG
    {
        NVAPI_D3D_BEGIN_UAV_OVERLAP_NO_WFI = 0x00000000,   //!< no WFI
        NVAPI_D3D_BEGIN_UAV_OVERLAP_GFX_WFI = 0x00000001,  //!< (bit 0) force graphics WFI
        NVAPI_D3D_BEGIN_UAV_OVERLAP_COMP_WFI = 0x00000002, //!< (bit 1) force compute WFI
    } NVAPI_D3D11_INSERTWFI_FLAG;

    NVAPI_INTERFACE NvAPI_D3D11_BeginUAVOverlapEx(__in IUnknown *pDeviceOrContext, __in NvU32 insertWFIFlags);

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_BeginUAVOverlap
    //
    //!   DESCRIPTION: Causes the driver to skip synchronization that is normally needed when accessing UAVs.
    //!                Applications must use this with caution otherwise this might cause data hazards when
    //!                multiple draw calls/compute shader launches are accessing same memory locations
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]        *pDeviceOrContext     pointer to D3D11 device, or D3D11 device context
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_BeginUAVOverlap(__in IUnknown *pDeviceOrContext);

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_EndUAVOverlap
    //
    //!   DESCRIPTION: Re-enables driver synchronization between calls that access same UAVs
    //!                See NvAPI_D3D_BeginUAVOverlap for more details.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]        *pDeviceOrContext     pointer to D3D11 device, or D3D11 device context
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_EndUAVOverlap(__in IUnknown *pDeviceOrContext);

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

#if defined(__cplusplus) && defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_GetResourceHandle
    //
    //! \code
    //!   DESCRIPTION: This function retrieves a driver handle to a DX10 resource
    //!
    //!         INPUT:  pDev         The device on which the resource was created
    //!                 pResource    The resource for which we want to retrieve a
    //!                              driver handle.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //!        OUTPUT:  phObject     Pointer to an NvAPI handle to be populated
    //!                              on success
    //!
    //! RETURN STATUS: NVAPI_OK if and only if phObject was populated with a valid
    //!                driver handle
    //! \endcode
    //! \ingroup nsightapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_GetResourceHandle(ID3D11Device *pDev,
                                                  ID3D11Resource *pResource,
                                                  NVDX_ObjectHandle *phObject);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

#if defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_SetFPSIndicatorState
    //
    //!   DESCRIPTION: Display an overlay that tracks the number of times the app presents per second, or,
    //!      the number of frames-per-second (FPS)
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in] bool    Whether or not to enable the fps indicator.
    //!
    //! \return ::NVAPI_OK,
    //!         ::NVAPI_ERROR
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_SetFPSIndicatorState(IUnknown *pDev, NvU8 doEnable);

#endif // if defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_Present
    //
    //! DESCRIPTION: This API presents the contents of the next buffer in the sequence of back buffers
    //!              owned by a IDirect3DDevice9 device.
    //!              This Present operation supports using a SwapGroup and SwapBarrier on the SwapChain
    //!              that owns the back buffer to be presented.
    //!
    //!          NOTE: NvAPI_D3D9_Present is a wrapper of the method IDirect3DDevice9::Present which
    //!                additionally notifies the D3D driver of the SwapChain used by the runtime for
    //!                presentation, thus allowing the D3D driver to apply SwapGroup and SwapBarrier
    //!                functionality to that SwapChain.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]    pDevice     The IDirect3DDevice9 interface that is used to issue the Present,
    //!                using the following IDirect3DDevice9::Present input parameters
    //! \param [in]    pSwapChain   Optional pointer to a IDirect3DSwapChain9 interface. If provided, the presentation is executed
    //!                             using this interface (i.e. pSwapChain->Present()) for the given swapchain only.
    //!                             If NULL, the presentation is executed on the device for all swapchains as in pDevice->Present()
    //! \param [in]    pSourceRect  A pointer to a RECT structure containing the source rectangle.
    //!                             If NULL, the entire source surface is presented.
    //! \param [in]    pDestRect      A pointer to a RECT structure containing the destination rectangle, in window client coordinates.
    //!                   If NULL, the entire client area is filled.
    //! \param [in]    hDestWindowOverride  A pointer to a destination window whose client area is taken as the target for this presentation.
    //!                                     If this value is NULL, then the hWndDeviceWindow member of D3DPRESENT_PARAMTERS is taken.
    //! \param [in]    pDirtyRegion (IN)   A pointer to a region to be presented. It must be NULL unless the swap chain was reated with
    //!                                    D3DSWAPEFFECT_COPY. If this value is non-NULL, the contained region is expressed in back buffer coordinates.
    //!
    //! \retval ::NVAPI_OK                 the Present operation was successfully executed
    //! \retval ::NVAPI_D3D_DEVICE_LOST    D3D device status is D3DERR_DEVICELOST or D3DERR_DEVICENOTRESET, the caller has to reset device
    //! \retval ::NVAPI_DEVICE_BUSY        the Present operation failed with an error other than D3DERR_DEVICELOST or D3DERR_DEVICENOTRESET
    //! \retval ::NVAPI_ERROR              the communication with the D3D driver failed, SwapGroup/SwapBarrier may not be possible.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI was not yet initialized.
    //!
    //!\ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_Present(IDirect3DDevice9 *pDevice,
                                       IDirect3DSwapChain9 *pSwapChain,
                                       const RECT *pSourceRect,
                                       const RECT *pDestRect,
                                       HWND hDestWindowOverride,
                                       const RGNDATA *pDirtyRegion);
#endif // if defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_QueryFrameCount
    //
    //!   DESCRIPTION: This API queries the universal framecounter of the Quadro-Sync master device.
    //!
    //! \param [in]   pDevice            The caller provides the DX9 device that has access to the Quadro-Sync device
    //! \param [out]  pFrameCount        The caller provides the storage space where the framecount is stored.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                  *pFrameCount populated with framecount value.
    //! \retval ::NVAPI_ERROR               The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT    One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_QueryFrameCount(IDirect3DDevice9 *pDevice,
                                               NvU32 *pFrameCount);
#endif // if defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_ResetFrameCount
    //
    //!   DESCRIPTION: This API resets the universal framecounter on the Quadro-Sync master device.
    //!
    //! \param [in]   pDevice            The caller provides the DX9 device that has access to the Quadro-Sync device
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                   framecounter has been reset
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_ResetFrameCount(IDirect3DDevice9 *pDevice);
#endif // if defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_QueryMaxSwapGroup
    //
    //!   DESCRIPTION: This API queries the number of supported SwapGroups and SwapBarriers in the graphics system.
    //!
    //! \param [in]   pDevice              The caller provides the DirectX 9 device that is used as a swapgroup client
    //! \param [out]  pMaxGroups           The caller provides the storage space where the number of available SwapGroups is stored.
    //! \param [out]  pMaxBarriers         The caller provides the storage space where the number of available SwapBarriers is stored.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                   the number of SwapGroups and SwapBarriers has been stored
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_QueryMaxSwapGroup(IDirect3DDevice9 *pDevice,
                                                 NvU32 *pMaxGroups,
                                                 NvU32 *pMaxBarriers);
#endif // if defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_QuerySwapGroup
    //
    //!   DESCRIPTION: This API queries the current SwapGroup and SwapBarrier that a SwapChain of a specific client device is bound to.
    //!
    //! \param [in]   pDevice            The caller provides the DirectX 9 device that is used as a swapgroup client
    //! \param [in]   pSwapChain         The caller provides the IDirect3DSwapChain9 interface as a handle to the SwapChain
    //!                                  that belongs to the swapgroup client device
    //! \param [out]  pSwapGroup         The caller provides the storage space where the current SwapGroup is stored.
    //! \param [out]  pSwapBarrier       The caller provides the storage space where the current SwapBarrier is stored.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                   the current SwapGroup and SwapBarrier has been stored
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_QuerySwapGroup(IDirect3DDevice9 *pDevice,
                                              IDirect3DSwapChain9 *pSwapChain,
                                              NvU32 *pSwapGroup,
                                              NvU32 *pSwapBarrier);
#endif // if defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_JoinSwapGroup
    //
    //!   DESCRIPTION: This API causes the SwapChain of a SwapGroup client to join or leave the specified SwapGroup.
    //!
    //! \param [in]    pDevice               The caller provides the DirectX 9 device that is used as a swapgroup client
    //! \param [in]    pSwapChain            The caller provides the IDirect3DSwapChain9 interface as a handle to the SwapChain
    //!                                      that belongs to the swapgroup client device
    //! \param [in]    group                 The caller specifies the SwapGroup which the SwapChain should join.
    //!                                      - If the value of group is zero, the SwapChain leaves the SwapGroup.
    //!                                      - The SwapChain joins a SwapGroup if the SwapGroup number is a positive integer less than or
    //!                                        equal to the maximum number of SwapGroups queried by NvAPI_SwapGroup_QueryMaxSwapGroup.
    //! \param [in]    blocking              The caller specifies that a presentation of this SwapChain should return immediately or block
    //!                                      until all members of the SwapGroup are ready and the presentation was actually executed.
    //!                                      A boolean value of false means the Present operation returns immediately and a value of true
    //!                                      means the Present operation is blocking.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                   the SwapChain joined/left the SwapGroup accordingly
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_JoinSwapGroup(IDirect3DDevice9 *pDevice,
                                             IDirect3DSwapChain9 *pSwapChain,
                                             NvU32 group,
                                             BOOL blocking);
#endif // if defined(_D3D9_H_)

#if defined(_D3D9_H_)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_BindSwapBarrier
    //
    //!   DESCRIPTION: This API causes a SwapGroup to be bound to or released from the specified SwapBarrier.
    //!
    //! \param [in]    pDevice    The caller provides the DirectX 9 device that is used as a swapgroup client
    //! \param [in]    group      The caller specifies the SwapGroup to be bound to the SwapBarrier.
    //! \param [in]    barrier    The caller specifies the SwapBarrier that the SwapGroup should be bound to.
    //!                              - If the value of barrier is zero, the SwapGroup will be released from the SwapBarrier.
    //!                              - The SwapGroup will be bound to the SwapBarrier if the value of barrier is a positive
    //!                                integer less than or equal to the maximum number of SwapBarriers queried by NvAPI_SwapGroup_QueryMaxSwapGroup.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                  the SwapGroup is bound to or released from the specified SwapBarrier
    //! \retval ::NVAPI_ERROR               The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT    One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_BindSwapBarrier(IDirect3DDevice9 *pDevice,
                                               NvU32 group,
                                               NvU32 barrier);
#endif // if defined(_D3D9_H_)

#if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_Present
    //
    //! DESCRIPTION: Presents the contents of the next buffer in the sequence of back buffers
    //!              owned by a D3D device.
    //!              This Present operation supports using a SwapGroup and SwapBarrier on the SwapChain
    //!              that owns the back buffer to be presented.
    //!
    //!          NOTE: NvAPI_D3D1x_Present is a wrapper of the method IDXGISwapChain::Present which
    //!                additionally notifies the D3D driver of the SwapChain used by the runtime for
    //!                presentation, thus allowing the D3D driver to apply SwapGroup and SwapBarrier
    //!                functionality to that SwapChain.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     pDevice          The D3D device interface that is used to issue the Present operation,
    //!                                 using the following IDirect3DDevice9::Present input parameters.
    //!                                  pDevice can be either ID3D10Device or ID3D10Device1 or ID3D11Device or ID3D12Device.
    //! \param [in]     pSwapChain       The IDXGISwapChain interface that is intended to present
    //! \param [in]     SyncInterval     An integer that specifies the how to synchronize presentation of a frame with the vertical blank.
    //!                                          Values are:
    //!                                          - 0:  The presentation occurs immediately, there is no synchronization.
    //!                                          - 1,2,3,4 : Synchronize presentation after the n'th vertical blank.
    //! \param [in]     Flags            An integer value that contains swap-chain presentation options as defined in DXGI_PRESENT.
    //!
    //! \retval ::NVAPI_OK                 the Present operation was successfully executed
    //! \retval ::NVAPI_DEVICE_BUSY        the Present operation failed with an error DXGI_ERROR_DEVICE_RESET or DXGI_ERROR_DEVICE_REMOVED,
    //                                     DXGI_STATUS_OCCLUDED, or D3DDDIERR_DEVICEREMOVED.
    //! \retval ::NVAPI_ERROR              the communication with the D3D driver failed, SwapGroup/SwapBarrier may not be possible.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_Present(IUnknown *pDevice,
                                        IDXGISwapChain *pSwapChain,
                                        UINT SyncInterval,
                                        UINT Flags);
#endif // defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)

#if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_QueryFrameCount
    //
    //!   DESCRIPTION: This API queries the universal framecounter of the Quadro-Sync master device.
    //!
    //! \param [in]    pDevice           The caller provides the D3D device that has access to the Quadro-Sync device,
    //!                                  pDevice can be either ID3D10Device or ID3D10Device1 or ID3D11Device or ID3D12Device.
    //! \param [out]   pFrameCount       The caller provides the storage space where the framecount is stored.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                   *pFrameCount populated with framecount value.
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_QueryFrameCount(IUnknown *pDevice,
                                                NvU32 *pFrameCount);
#endif // defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)

#if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_ResetFrameCount
    //
    //!   DESCRIPTION: This API resets the universal framecounter on the Quadro-Sync master device.
    //!
    //! \param [in]    pDevice         The caller provides the D3D device that has access to the Quadro-Sync device,
    //!                                pDevice can be either ID3D10Device or ID3D10Device1 or ID3D11Device or ID3D12Device.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                   framecounter has been reset
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     pDevice arg passed in is invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_ResetFrameCount(IUnknown *pDevice);
#endif // defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)

#if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_QueryMaxSwapGroup
    //
    //!   DESCRIPTION: This API queries the number of supported SwapGroups and SwapBarriers in the graphics system.
    //!
    //! \param [in]    pDevice        The caller provides the D3D device that is intended to use SwapGroup functionality.
    //!                               pDevice can be either ID3D10Device or ID3D10Device1 or ID3D11Device or ID3D12Device.
    //! \param [out]   pMaxGroups     The caller provides the storage space where the number of available SwapGroups is stored.
    //! \param [out]   pMaxBarriers   The caller provides the storage space where the number of available SwapBarriers is stored.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                  the number of SwapGroups and SwapBarriers has been stored
    //! \retval ::NVAPI_ERROR               The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT    One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_QueryMaxSwapGroup(IUnknown *pDevice,
                                                  NvU32 *pMaxGroups,
                                                  NvU32 *pMaxBarriers);
#endif // defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)

#if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_QuerySwapGroup
    //
    //!   DESCRIPTION: This API queries the current SwapGroup and SwapBarrier that a SwapChain of a specific client device is bound to.
    //!
    //! \param [in]    pDevice            The caller provides the D3D device that owns the SwapChain used as a SwapGroup client.
    //!                                   pDevice can be either ID3D10Device or ID3D10Device1 or ID3D11Device or ID3D12Device.
    //! \param [in]    pSwapChain         The IDXGISwapChain interface that is used as the SwapGroup client.
    //!
    //! \param [out]   pSwapGroup         The caller provides the storage space where the current SwapGroup is stored.
    //! \param [out]   pSwapBarrier       The caller provides the storage space where the current SwapBarrier is stored.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                   the current SwapGroup and SwapBarrier has been stored
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_QuerySwapGroup(IUnknown *pDevice,
                                               IDXGISwapChain *pSwapChain,
                                               NvU32 *pSwapGroup,
                                               NvU32 *pSwapBarrier);
#endif // defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)

#if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_JoinSwapGroup
    //
    //!   DESCRIPTION: This API causes the SwapChain of a SwapGroup client to join or leave the specified SwapGroup.
    //!
    //! \param [in]   pDevice            The caller provides the D3D device that owns the SwapChain used as a SwapGroup client.
    //!                                  pDevice can be either ID3D10Device or ID3D10Device1 or ID3D11Device or ID3D12Device.
    //! \param [in]   pSwapChain         The IDXGISwapChain interface that is used as the SwapGroup client.
    //! \param [in]   group              The caller specifies the SwapGroup which the SwapChain should join.
    //!                                      - If the value of group is zero, the SwapChain leaves the SwapGroup.
    //!                                      - The SwapChain joins a SwapGroup if the SwapGroup number is a positive integer less than or
    //!                                        equal to the maximum number of SwapGroups queried by NvAPI_SwapGroup_QueryMaxSwapGroup.
    //! \param [in]   blocking           The caller specifies that a presentation of this SwapChain should return immediately or block
    //!                                  until all members of the SwapGroup are ready and the presentation was actually executed.
    //!                                  A boolean value of false means the Present operation returns immediately and a value of true
    //!                                  means the Present operation is blocking.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                   the SwapChain joined/left the SwapGroup accordingly
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_JoinSwapGroup(IUnknown *pDevice,
                                              IDXGISwapChain *pSwapChain,
                                              NvU32 group,
                                              BOOL blocking);
#endif // defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)

#if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_BindSwapBarrier
    //
    //!   DESCRIPTION: This API causes a SwapGroup to be bound to or released from the specified SwapBarrier.
    //!
    //! \param [in]   pDevice            The caller provides the D3D device that owns the SwapChain used as a SwapGroup client.
    //!                                  pDevice can be either ID3D10Device or ID3D10Device1 or ID3D11Device or ID3D12Device.
    //! \param [in]   group              The caller specifies the SwapGroup to be bound to the SwapBarrier.
    //! \param [in]   barrier            The caller specifies the SwapBarrier that the SwapGroup should be bound to.
    //!                                      - If the value of barrier is zero, the SwapGroup releases the SwapBarrier.
    //!                                      - The SwapGroup will be bound to the SwapBarrier if the value of barrier is a positive
    //!                                        integer less than or equal to the maximum number of SwapBarriers queried by NvAPI_D3D1x_QueryMaxSwapGroup.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \retval ::NVAPI_OK                  the SwapGroup is bound to the specified SwapBarrier
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     One or more args passed in are invalid.
    //! \retval ::NVAPI_API_NOT_INITIALIZED  NvAPI was not yet initialized.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_BindSwapBarrier(IUnknown *pDevice,
                                                NvU32 group,
                                                NvU32 barrier);
#endif // defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_QueryPresentBarrierSupport
    //
    //!   DESCRIPTION: This API returns if presentBarrier feature is supported on the specified device.
    //!
    //! \since Release: 470
    //!
    //! \param [in]     pDevice               The ID3D12Device device which owns the SwapChain as a PresentBarrier client.
    //! \param [out]    pSupported            Pointer to a boolean returning true if supported, false otherwise.
    //!
    //! \return ::NVAPI_OK                     the call succeeded
    //! \return ::NVAPI_ERROR                  the call failed
    //! \return ::NVAPI_NO_IMPLEMENTATION      the API is not implemented
    //! \return ::NVAPI_INVALID_POINTER        an invalid pointer was passed as an argument
    //! \retval ::NVAPI_API_NOT_INITIALIZED    NvAPI not initialized
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_QueryPresentBarrierSupport(__in ID3D12Device *pDevice, __out bool *pSupported);
#endif // defined(__cplusplus) && defined(__d3d12_h__)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreatePresentBarrierClient
    //
    //!   DESCRIPTION: This API returns an NvPresentBarrierClientHandle handle, which
    //!                owns the swapchain to be synchronized through PresentBarrier.
    //!                This handle is used in other PresentBarrier functions.
    //!
    //! \since Release: 470
    //!
    //! \param [in]   pDevice                  The ID3D12Device device which owns the SwapChain as a PresentBarrier client.
    //! \param [in]   pSwapChain               The IDXGISwapChain interface that presentBarrier is operated on.
    //! \param [OUT]  pPresentBarrierClient    Pointer to an NvPresentBarrierClientHandle handle created by the driver
    //!                                        on success.
    //!
    //! \return ::NVAPI_OK                     the call succeeded
    //! \return ::NVAPI_ERROR                  the call failed
    //! \return ::NVAPI_INVALID_POINTER        an invalid pointer was passed as an argument
    //! \return ::NVAPI_NO_IMPLEMENTATION      the API is not implemented
    //! \retval ::NVAPI_API_NOT_INITIALIZED    NvAPI not initialized
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_CreatePresentBarrierClient(__in ID3D12Device *pDevice,
                                                           __in IDXGISwapChain *pSwapChain,
                                                           __out NvPresentBarrierClientHandle *pPresentBarrierClient);
#endif // defined(__cplusplus) && defined(__d3d12_h__)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_RegisterPresentBarrierResources
    //
    //!   DESCRIPTION: This API registers scanout resources of a presentBarrier client
    //!                to the presentBarrier, and a fence object which is used for
    //!                presentBarrier synchronization. Once the registration has completed
    //!                successfully, it is not allowed to add additional resources, i.e. the
    //!                number of back buffers and fence object are not allowed to be
    //!                changed. However, application must call this function whenever the
    //!                back buffers are changed, e.g. ResizeBuffers() is called.
    //!
    //! \since Release: 470
    //!
    //! \param [in]   presentBarrierClient The NvPresentBarrierClientHandle client handle that owns the resources.
    //! \param [in]   pFence               An ID3D12Fence object created by the application and used for present
    //!                                    synchronization through presentBarrier. Application must wait on this
    //!                                    fence to ensure the scanout resources are ready for use in the next
    //!                                    rendering loop. The fence is only signaled by the driver and must not
    //!                                    be signaled through any other queue command. The fence value must be
    //!                                    monotonically increasing on every present call, and tracked by the
    //!                                    application.
    //! \param [in]   ppResources          An array of ID3D12Resource to be synchronized through presentBarrier, and
    //!                                    the size is specified by numResources.
    //! \param [in]   numResources         The number of ID3D12Resource elements in ppResources.
    //!
    //! \return ::NVAPI_OK                     the call succeeded
    //! \return ::NVAPI_ERROR                  the call failed
    //! \return ::NVAPI_NO_IMPLEMENTATION      the API is not implemented
    //! \return ::NVAPI_INVALID_POINTER        an invalid pointer was passed as an argument
    //! \return ::NVAPI_INVALID_HANDLE         an invalid NvPresentBarrierClientHandle was passed as an argument
    //! \return ::NVAPI_INVALID_ARGUMENT       an invalid number of resources was passed as an argument
    //! \retval ::NVAPI_API_NOT_INITIALIZED    NvAPI not initialized
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_RegisterPresentBarrierResources(__in NvPresentBarrierClientHandle presentBarrierClient,
                                                                __in ID3D12Fence *pFence,
                                                                __in ID3D12Resource **ppResources,
                                                                __in NvU32 numResources);
#endif // defined(__cplusplus) && defined(__d3d12_h__)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DestroyPresentBarrierClient
    //
    //!   DESCRIPTION: This API destroys a presentBarrier client, and must be called
    //!                after client leaves presentBarrier to avoid memory leak.
    //!
    //! \since Release: 470
    //!
    //! \param [in]   presentBarrierClient     An NvPresentBarrierClientHandle handle created by NvAPI_xxxx_CreatedPresentBarrierClient
    //!
    //! \return ::NVAPI_OK                     the call succeeded
    //! \return ::NVAPI_INVALID_HANDLE         an invalid NvPresentBarrierClientHandle was passed as an argument
    //! \return ::NVAPI_NO_IMPLEMENTATION      the API is not implemented
    //! \retval ::NVAPI_API_NOT_INITIALIZED    NvAPI not initialized
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DestroyPresentBarrierClient(__in NvPresentBarrierClientHandle presentBarrierClient);
#endif // defined(__cplusplus)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus)
    typedef struct _NV_JOIN_PRESENT_BARRIER_PARAMS
    {
        NvU32 dwVersion; //!< Must be NV_JOIN_PRESENT_BARRIER_PARAMS_VER1
    } NV_JOIN_PRESENT_BARRIER_PARAMS;

//! Macro for constructing the version field of ::NV_JOIN_PRESENT_BARRIER_PARAMS
#define NV_JOIN_PRESENT_BARRIER_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_JOIN_PRESENT_BARRIER_PARAMS, 1)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_JoinPresentBarrier
    //
    //!   DESCRIPTION: This API adds a registered PresentBarrier client to the presentBarrier.
    //!                If the call suceeds, image present of the registered scanout resources
    //!                from this client is under the synchronization of presentBarrier.
    //!
    //! \since Release: 470
    //!
    //! \param [in]  presentBarrierClient     An NvPresentBarrierClientHandle handle created by NvAPI_xxxx_CreatedPresentBarrierClient
    //! \param [in]  pParams                  Parameters to joining presentBarrier.
    //!
    //! \retval ::NVAPI_OK                    the call succeeded
    //! \retval ::NVAPI_ERROR                 the call failed
    //! \retval ::NVAPI_NO_IMPLEMENTATION     the interface is not implemented
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION the version of data structure is not correct
    //! \retval ::NVAPI_INVALID_HANDLE        an invalid NvPresentBarrierClientHandle was passed as an argument
    //! \retval ::NVAPI_INVALID_POINTER       an invalid pointer was passed as an argument (probably NULL)
    //! \retval ::NVAPI_API_NOT_INITIALIZED   NvAPI not initialized
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_JoinPresentBarrier(__in NvPresentBarrierClientHandle presentBarrierClient, __in NV_JOIN_PRESENT_BARRIER_PARAMS *pParams);
#endif // defined(__cplusplus)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_LeavePresentBarrier
    //
    //!   DESCRIPTION: This API removes a registered client from presentBarrier. If this
    //!                client does not join presentBarrier, this function does nothing.
    //!
    //! \since Release: 470
    //!
    //! \param [in]  presentBarrierClient     An NvPresentBarrierClientHandle handle created by NvAPI_xxxxx_CreatePresentBarrierClient.
    //!
    //! \retval ::NVAPI_OK                    the call succeeded
    //! \retval ::NVAPI_ERROR                 the call failed
    //! \retval ::NVAPI_NO_IMPLEMENTATION     the interface is not implemented
    //! \retval ::NVAPI_INVALID_HANDLE        an invalid NvPresentBarrierClientHandle was passed as an argument
    //! \retval ::NVAPI_API_NOT_INITIALIZED   NvAPI not initialized
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_LeavePresentBarrier(__in NvPresentBarrierClientHandle presentBarrierClient);
#endif // defined(__cplusplus)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus)

#define NV_PRESENT_BARRIER_FRAME_STATICS_VER1 MAKE_NVAPI_VERSION(NV_PRESENT_BARRIER_FRAME_STATISTICS, 1)


    typedef enum _NV_PRESENT_BARRIER_SYNC_MODE
    {
        PRESENT_BARRIER_NOT_JOINED = 0x00000000,   //!< The client hasn't joined presentBarrier
        PRESENT_BARRIER_SYNC_CLIENT = 0x00000001,  //!< The client joined the presentBarrier, but is not synchronized with
                                                   //!  any other presentBarrier clients. This happens if the back buffers
                                                   //!  of this client are composited instead of being flipped out to screen
        PRESENT_BARRIER_SYNC_SYSTEM = 0x00000002,  //!< The client joined the presentBarrier, and is synchronized with other
                                                   //!  presentBarrier clients within the system
        PRESENT_BARRIER_SYNC_CLUSTER = 0x00000003, //!< The client joined the presentBarrier, and is synchronized with other
                                                   //!  clients within the system and across systems through QSync devices
    } NV_PRESENT_BARRIER_SYNC_MODE;

    typedef struct _NV_PRESENT_BARRIER_FRAME_STATISTICS
    {
        NvU32 dwVersion;                       //!< Must be NV_PRESENT_BARRIER_FRAME_STATICS_VER1
        NV_PRESENT_BARRIER_SYNC_MODE SyncMode; //!< The presentBarrier mode of this client from last present call
        NvU32 PresentCount;                    //!< The total count of times that a frame has been presented from this
                                               //!  client after it joined presentBarrier successfully.
        NvU32 PresentInSyncCount;              //!< The total count of times that a frame has been presented from this
                                               //!  client and that has happened since the returned SyncMode is
                                               //!  PRESENT_BARRIER_SYNC_SYSTEM or PRESENT_BARRIER_SYNC_CLUSTER.
                                               //!  If the returned SyncMode is any other mode, this value is 0.
                                               //!  This count is set back to 0 in case the SyncMode switches away from
                                               //!  PRESENT_BARRIER_SYNC_SYSTEM or PRESENT_BARRIER_SYNC_CLUSTER.
        NvU32 FlipInSyncCount;                 //!< The total count of flips from this client since the returned SyncMode
                                               //!  is PRESENT_BARRIER_SYNC_SYSTEM or PRESENT_BARRIER_SYNC_CLUSTER.
                                               //!  If the returned SyncMode is any other mode, this value is 0.
                                               //!  This count is set back to 0 in case the SyncMode switches away from
                                               //!  PRESENT_BARRIER_SYNC_SYSTEM or PRESENT_BARRIER_SYNC_CLUSTER.
        NvU32 RefreshCount;                    //!< The total count of v-blanks since the returned SyncMode of this client
                                               //!  is PRESENT_BARRIER_SYNC_SYSTEM or PRESENT_BARRIER_SYNC_CLUSTER.
                                               //!  If the returned SyncMode is any other mode, this value is 0.
                                               //!  This count is set back to 0 in case the SyncMode switches away from
                                               //!  PRESENT_BARRIER_SYNC_SYSTEM or PRESENT_BARRIER_SYNC_CLUSTER.
    } NV_PRESENT_BARRIER_FRAME_STATISTICS;

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_QueryPresentBarrierFrameStatistics
    //
    //!   DESCRIPTION: This API returns the presentBarrier frame statistics of last
    //!                present call from this client. If the client did not join
    //!                presentBarrier, the SyncMode is returned as PRESENT_BARRIER_NOT_JOINED,
    //!                and all other fields are reset. Driver does not retain any
    //!                presentBarrier info of the client once it leaves presentBarrier.
    //!
    //! \since Release: 470
    //!
    //! \param [in]   presentBarrierClient    An NvPresentBarrierClientHandle handle created by NvAPI_xxxxx_CreatePresentBarrierClient.
    //! \param [out]  pFrameStats             Pointer to NV_PRESENT_BARRIER_FRAME_STATISTICS structure about presentBarrier statistics.
    //!
    //! \retval ::NVAPI_OK                    the call succeeded
    //! \retval ::NVAPI_ERROR                 the call failed
    //! \retval ::NVAPI_NO_IMPLEMENTATION     the interface is not implemented
    //! \retval ::NVAPI_INVALID_HANDLE        an invalid NvPresentBarrierClientHandle was passed as an argument
    //! \retval ::NVAPI_INVALID_POINTER       an invalid pointer was passed as an argument (probably NULL)
    //! \retval ::NVAPI_INCOMPATIBLE_STRUCT_VERSION invalid version of frameStatistics params
    //! \retval ::NVAPI_API_NOT_INITIALIZED   NvAPI not initialized
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_QueryPresentBarrierFrameStatistics(__in NvPresentBarrierClientHandle presentBarrierClient,
                                                             __out NV_PRESENT_BARRIER_FRAME_STATISTICS *pFrameStats);
#endif // defined(__cplusplus)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateDDisplayPresentBarrierClient
    //
    //!   DESCRIPTION: This API returns an NvPresentBarrierClientHandle handle.
    //!
    //! \since Release: 510
    //!
    //! \param [in]   pDevice                  The ID3D12Device device which executes the rendering commands of this PresentBarrier
    //!                                        client. It must be created on the same adapter as DisplayDevice.
    //! \param [in]   sourceId                 The adapter-relative identifier for the DisplaySource obtained from DisplaySource.SourceId().
    //! \param [OUT]  pPresentBarrierClient    Pointer to an NvPresentBarrierClientHandle handle created by the driver on success.
    //!
    //! \return ::NVAPI_OK                     the call succeeded
    //! \return ::NVAPI_ERROR                  the call failed
    //! \return ::NVAPI_INVALID_POINTER        an invalid pointer was passed as an argument
    //! \return ::NVAPI_INVALID_HANDLE         the input displaySource handle is not owned by the process
    //! \return ::NVAPI_NOT_SUPPORTED          PresentBarrier featue is not supported on this configuration
    //! \return ::NVAPI_NO_IMPLEMENTATION      the API is not implemented
    //! \retval ::NVAPI_API_NOT_INITIALIZED    NvAPI not initialized
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_CreateDDisplayPresentBarrierClient(__in ID3D12Device *pDevice, __in NvU32 sourceId, __out NvPresentBarrierClientHandle *pPresentBarrierClient);
#endif // defined(__cplusplus) && defined(__d3d12_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__) || defined(__d3d12_h__))

    enum NVAPI_QUAD_FILLMODE
    {
        NVAPI_QUAD_FILLMODE_DISABLED = 0,
        NVAPI_QUAD_FILLMODE_BBOX = 1,
        NVAPI_QUAD_FILLMODE_FULL_VIEWPORT = 2,
    };

#endif // defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__) || defined(__d3d12_h__))

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    typedef struct NvAPI_D3D11_RASTERIZER_DESC_EX
    {
        // D3D11_RASTERIZER_DESC member variables
        D3D11_FILL_MODE FillMode;
        D3D11_CULL_MODE CullMode;
        BOOL FrontCounterClockwise;
        INT DepthBias;
        FLOAT DepthBiasClamp;
        FLOAT SlopeScaledDepthBias;
        BOOL DepthClipEnable;
        BOOL ScissorEnable;
        BOOL MultisampleEnable;
        BOOL AntialiasedLineEnable;

        // NvAPI_D3D11_RASTERIZER_DESC_EX specific member variables
        NvU32 ForcedSampleCount;                //<! Added DX 11.1, part of _DESC1 version of this struct.
        bool ProgrammableSamplePositionsEnable; //<! enable Programmable Samples feature
        bool InterleavedSamplingEnable;         //<! when jitter is enabled, an app need to fill the whole arrays below, otherwise only as much entries as samples
        NvU8 SampleCount;                       //<! number of samples. In TIR N->1 it needs to match N, in non-TIR it needs to match RT sample count. Ignored if ForcePerSampleInterlock is set
        NvU8 SamplePositionsX[16];              //<! x positions in API sample order
        NvU8 SamplePositionsY[16];              //<! y positions in API sample order
        bool ConservativeRasterEnable;          //<! rasterize all pixels a primitive touches in any way instead of just those with the centroid covered.
        NVAPI_QUAD_FILLMODE QuadFillMode;       //<! Fill a triangle outside its bounds as a screen-aligned quad, matching the tri's bounding-box or filling the full viewport.
        bool PostZCoverageEnable;               //<! Enable pixel-shader input SV_COVERAGE to account for z-test in early-z mode.
        bool CoverageToColorEnable;             //<! Enable output of coverage to a color render-target.
        NvU8 CoverageToColorRTIndex;            //<! Index of RT for coverage-to-color.
        bool TargetIndepentRasterWithDepth;     //<! TargetIndepentRasterWithDepth = TRUE enables rasterezation mode where sample count of both raster and depth-stencil buffer are equal and do not match RT sample count.
        NvU8 reserved[63];                      //<! reserved for expansion, set to zero.
    } NvAPI_D3D11_RASTERIZER_DESC_EX;

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateRasterizerState
    //
    //! \code
    //!   DESCRIPTION: This function is an extension of ID3D11Device::CreateRasterizerState with additional raster states
    //!
    //!                If programmable sample positions is used, to decompress the surface using the currently bound
    //!                programmable sample positions, use function NvAPI_D3D11_DecompressView.
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different thread
    //!                than the one calling immediate device setstate functions.
    //!
    //!         \param [in]        pDevice             current d3d device
    //!         \param [in]        pRasterizerDesc     Rasterizer state description of type NVAPI_D3D11_RASTERIZER_DESC_EX
    //!         \param [out]       ppRasterizerState   ID3D11RasterizerState
    //!
    //!
    //! \return ::NVAPI_OK     if the call succeeds.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_CreateRasterizerState(__in ID3D11Device *pDevice,
                                                      __in const NvAPI_D3D11_RASTERIZER_DESC_EX *pRasterizerDesc,
                                                      __out ID3D11RasterizerState **ppRasterizerState);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d11_h__) || defined(__d3d11_1_h__) || defined(__d3d12_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_ConfigureAnsel
    //
    //! \code
    //!   DESCRIPTION: This function configure the setting of AnselShim, including hotkey.
    //!
    //!         \param [in]        pDevice             current d3d device (should be ID3D11Device, ID3D10Device, or ID3D12Device)
    //!         \param [in]        pAnselConfig        configuration of Ansel to be set, including hotkey setting
    //!
    //!
    //! \return ::NVAPI_OK     if the call succeeds.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    typedef enum _NVAPI_ANSEL_FEATURE
    {
        NVAPI_ANSEL_FEATURE_UNKNOWN = 0,
        NVAPI_ANSEL_FEATURE_BLACK_AND_WHITE = 1,
        NVAPI_ANSEL_FEATURE_HUDLESS = 2
    } NVAPI_ANSEL_FEATURE;

    typedef enum _NVAPI_ANSEL_FEATURE_STATE
    {
        NVAPI_ANSEL_FEATURE_STATE_UNKNOWN = 0,
        NVAPI_ANSEL_FEATURE_STATE_ENABLE = 1, //!< Toggle feature on
        NVAPI_ANSEL_FEATURE_STATE_DISABLE = 2 //!< Toggle feature off
    } NVAPI_ANSEL_FEATURE_STATE;

    typedef enum _NVAPI_ANSEL_HOTKEY_MODIFIER
    {
        NVAPI_ANSEL_HOTKEY_MODIFIER_UNKNOWN = 0,
        NVAPI_ANSEL_HOTKEY_MODIFIER_CTRL = 1,  //!< Use control in the hotkey combination
        NVAPI_ANSEL_HOTKEY_MODIFIER_SHIFT = 2, //!< Use shift in the hotkey combination
        NVAPI_ANSEL_HOTKEY_MODIFIER_ALT = 3    //!< Use alternate in the hotkey combination
    } NVAPI_ANSEL_HOTKEY_MODIFIER;

    typedef struct NVAPI_ANSEL_FEATURE_CONFIGURATION_STRUCT
    {
        NVAPI_ANSEL_FEATURE featureId;          //!< Id of the feature
        NVAPI_ANSEL_FEATURE_STATE featureState; //!< Whether the feature is enabled or not
        UINT hotkey;                            //!< An optional virtual key associated with this feature
    } NVAPI_ANSEL_FEATURE_CONFIGURATION_STRUCT;

    typedef struct NVAPI_ANSEL_CONFIGURATION_STRUCT_V1
    {
        NvU32 version;                                            //!< Structure version
        NVAPI_ANSEL_HOTKEY_MODIFIER hotkeyModifier;               //!< Modifier key to use in hotkey combination
        UINT keyEnable;                                           //!< VKEY to enable/disable Ansel
        UINT numAnselFeatures;                                    //!< Number of features in pAnselFeatures
        NVAPI_ANSEL_FEATURE_CONFIGURATION_STRUCT *pAnselFeatures; //!< Array of features configurations
    } NVAPI_ANSEL_CONFIGURATION_STRUCT_V1;

    typedef NVAPI_ANSEL_CONFIGURATION_STRUCT_V1 NVAPI_ANSEL_CONFIGURATION_STRUCT;

#define NVAPI_ANSEL_CONFIGURATION_STRUCT_VER1 MAKE_NVAPI_VERSION(NVAPI_ANSEL_CONFIGURATION_STRUCT_V1, 1)

#define NVAPI_ANSEL_CONFIGURATION_STRUCT_VER NVAPI_ANSEL_CONFIGURATION_STRUCT_VER1


    NVAPI_INTERFACE NvAPI_D3D_ConfigureAnsel(__in IUnknown *pDevice,
                                             __in NVAPI_ANSEL_CONFIGURATION_STRUCT *pNLSConfig);

#endif // defined (__cplusplus) && (defined(_D3D9_H_) || defined(__d3d11_h__) || defined(__d3d11_1_h__) || defined(__d3d12_h__))

    //! SUPPORTED OS:  Windows 8 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_2_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateTiledTexture2DArray
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: Tiled resource is supported for Texture2D Array, however, but only when mip packing is not triggered.
    //!                So any mip level cannot be smaller than a single tile size(64KB).
    //!                This set of API is an extension of D3D11 support for tiled resource to allow a tiled texture2D array with mip packing.
    //!                If any of API from this set is used, using all of them is highly recommended.
    //!                It includes NvAPI_D3D11_CreateTiledTexture2DArray, NvAPI_D3D11_TiledTexture2DArrayGetDesc,
    //!                NvAPI_D3D11_UpdateTileMappings, NvAPI_D3D11_CopyTileMappings, NvAPI_D3D11_TiledResourceBarrier.
    //!                Reminder: all API in this set other than NvAPI_D3D11_CreateTiledTexture2DArray won't has D3D Debug Layer information.
    //!
    //!                NvAPI_D3D11_CreateTiledTexture2DArray is an extension of ID3D11Device::CreateTexutre2D.
    //!                Use this function to create a tiled Texture2D array with mip packing.
    //!                Runtime doesn't know the created resource is actually a tiled resource.
    //!                Any other D3D11 API where runtime will check whether resource is tiled or not has a corresponding NVAPI version and they should be used.
    //!                Different from DX12 implementation, this API should only be called when creating a tiled texture2D array with mip packing.
    //!                Other normal tiled resource following D3D spec must use the standard ID3D11Device::CreateTexutre2D to create.
    //!
    //!         \param [in]        pDevice             current d3d device
    //!         \param [in]        pDesc               The Texture2D Array descriptor, ArraySize > 1 && (pDesc->MiscFlags&D3D11_RESOURCE_MISC_TILED)
    //!         \param [in]        pInitialData        A pointer to an array of D3D11_SUBRESOURCE_DATA structures that describe subresources for the 2D texture resource.
    //!         \param [out]       ppTexture2D         A pointer to a buffer that receives a pointer to a ID3D11Texture2D interface for the created texture.

    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_CreateTiledTexture2DArray(__in ID3D11Device *pDevice,
                                                          __in const D3D11_TEXTURE2D_DESC *pDesc,
                                                          __in const D3D11_SUBRESOURCE_DATA *pInitialData,
                                                          __out ID3D11Texture2D **ppTexture2D);

#endif // defined(__cplusplus) && defined(__d3d11_2_h__)

    //! SUPPORTED OS:  Windows 10 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_h__)

    typedef enum _NV_D3D11_FEATURE
    {
        NV_D3D11_FEATURE_RASTERIZER,
    } NV_D3D11_FEATURE;

    typedef struct _NV_D3D11_FEATURE_DATA_RASTERIZER_SUPPORT
    {
        BOOL TargetIndependentRasterWithDepth;
        BOOL ProgrammableSamplePositions;
        BOOL InterleavedSampling;
        BOOL ConservativeRaster;
        BOOL PostZCoverage;
        BOOL CoverageToColor;
    } NV_D3D11_FEATURE_DATA_RASTERIZER_SUPPORT;

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CheckFeatureSupport
    //
    //!   DESCRIPTION: This function gets information about the features that are supported by the current graphics driver.
    //!
    //!
    //!
    //! \param [in]        pDevice                 The device on which to query for support.
    //! \param [in]        Feature                 A member of the NvAPI_D3D11_FEATURE enumerated type that describes which feature to query for suppor.
    //! \param [in]        pFeatureSupportData     Upon completion of the method, the passed structure is filled with data that describes the feature support.
    //! \param [out]       FeatureSupportDataSize  The size of the structure passed to the pFeatureSupportData parameter.
    //!
    //! \since Release: 410
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //! \retval ::         Returns NVAPI_OK if successful; returns NVAPI_INVALID_ARGUMENT if an unsupported data type is passed to the pFeatureSupportData parameter
    //!                    or a size mismatch is detected for the FeatureSupportDataSize parameter;
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_CheckFeatureSupport(__in ID3D11Device *pDevice,
                                                    __in NV_D3D11_FEATURE Feature,
                                                    __out void *pFeatureSupportData,
                                                    __in UINT FeatureSupportDataSize);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

    //! SUPPORTED OS:  Windows 10 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateImplicitMSAATexture2D
    //
    //! \since Release: 410
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D11_CreateImplicitMSAATexture2D is a simple wrapper of ID3D11Device::CreateTexture2D
    //!                which allows to create multisampled 2D texture that is exposed to DX runtime as non-multisampled texture.
    //!
    //!         \param [in]       pDevice      Current d3d device
    //!         \param [in]       pDesc        A pointer to a D3D11_TEXTURE2D_DESC structure that describes a 2D texture resource.
    //!                                        To create a typeless resource that can be interpreted at runtime into different,
    //!                                        compatible formats, specify a typeless format in the texture description.
    //!                                        To generatemipmap levels automatically, set the number of mipmap levels to 0.
    //!                                        SampleDesc.SampleCount specifies actual resource sample count, while D3D runtime object
    //!                                        sees resource as non-multisampled.
    //!
    //!         \param [out]      ppTexture2D  A pointer to a buffer that receives a pointer to a ID3D11Texture2D interface for the
    //!                                        created texture.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  See MSDN for the API specific error codes.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_CreateImplicitMSAATexture2D(__in ID3D11Device *pDevice,
                                                            __in const D3D11_TEXTURE2D_DESC *pDesc,
                                                            __out ID3D11Texture2D **ppTexture2D);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

    //! SUPPORTED OS:  Windows 10 and higher
    //!

#if defined(__cplusplus) && defined(__d3d12_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateImplicitMSAATexture2D
    //
    //! \since Release: 410
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_CreateCommittedImplicitMSAATexture2D is a simple wrapper of ID3D12Device::CreateCommittedResource
    //!                which allows to create multisampled 2D texture that is exposed to DX runtime as non-multisampled texture.
    //!
    //!         \param [in]       pDevice      Current d3d device
    //!         \param [in]       pDesc        A pointer to a D3D12_RESOURCE_DESC structure that describes a 2D texture resource.
    //!                                        To create a typeless resource that can be interpreted at runtime into different,
    //!                                        compatible formats, specify a typeless format in the texture description.
    //!                                        To generatemipmap levels automatically, set the number of mipmap levels to 0.
    //!                                        SampleDesc.SampleCount specifies actual resource sample count, while D3D runtime object
    //!                                        sees resource as non-multisampled.
    //!         \param [in]       pHeapProperties, HeapFlags, InitialResourceState, pOptimizedClearValue, riidResource  See D3D12 docs
    //!
    //!         \param [out]      ppResource   Same ID3D12Device::CreateCommittedResource
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  See MSDN for the API specific error codes.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_CreateCommittedImplicitMSAATexture2D(
        __in ID3D12Device *pDevice,
        __in const D3D12_HEAP_PROPERTIES *pHeapProperties,
        D3D12_HEAP_FLAGS HeapFlags,
        __in const D3D12_RESOURCE_DESC *pDesc,
        D3D12_RESOURCE_STATES InitialResourceState,
        __in_opt const D3D12_CLEAR_VALUE *pOptimizedClearValue,
        REFIID riidResource,
        __out void **ppvResource);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

    //! SUPPORTED OS:  Windows 10 and higher
    //!

    //! \ingroup dx
    //! Valid modes for NvAPI_D3D11_ResolveSubresourceRegion() and NvAPI_D3D12_ResolveSubresourceRegion
    typedef enum _NV_RESOLVE_MODE
    {
        NV_RESOLVE_MODE_SAMPLE_0,
    } NV_RESOLVE_MODE;

#if defined(__cplusplus) && defined(__d3d11_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_ResolveSubresourceRegion
    //
    //! \since Release: 410
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D11_ResolveSubresourceRegion is D3D11 an analog of D3D12 ResolveSubresourceRegion.
    //!
    //!         \param [in]       pDstResource    Destination resource. Must be a created with the D3D11_USAGE_DEFAULT flag and be single-sampled.
    //!         \param [in]       DstSubresource  A zero-based index, that identifies the destination subresource. Use D3D11CalcSubresource to calculate the index.
    //!         \param [in]       DstX            The X coordinate of the left-most edge of the destination region.
    //!                                           The width of the destination region is the same as the width of the source rect.
    //!
    //!         \param [in]       DstY            The Y coordinate of the top-most edge of the destination region.
    //!                                           The height of the destination region is the same as the height of the source rect.
    //!
    //!         \param [in]       pSrcResource    Source resource. Must be multisampled.
    //!         \param [in]       SrcSubresource  The source subresource of the source resource.
    //!         \param [in]       pSrcRect        Specifies the rectangular region of the source resource to be resolved.
    //!                                           Passing NULL for pSrcRect specifies that the entire subresource is to be resolved.
    //!
    //!         \param [in]       Format          A DXGI_FORMAT that indicates how the multisampled resource will be resolved to a single-sampled resource.
    //!         \param [in]       ResolveMode     Specifies the operation used to resolve the source samples. NV_RESOLVE_MODE_SAMPLE_0 is the only supported mode.
    //!                                           NV_RESOLVE_MODE_SAMPLE_0 outputs sample 0 and discards all other samples.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  See MSDN for the API specific error codes.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_ResolveSubresourceRegion(
        __in ID3D11Device *pDevice,
        __in ID3D11Texture2D *pDstResource,
        __in UINT DstSubresource,
        __in UINT DstX,
        __in UINT DstY,
        __in ID3D11Texture2D *pSrcResource,
        __in UINT SrcSubresource,
        __in_opt const RECT *pSrcRect,
        __in DXGI_FORMAT Format,
        __in NV_RESOLVE_MODE ResolveMode);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

    //! SUPPORTED OS:  Windows 10 and higher
    //!

#if defined(__cplusplus) && defined(__d3d12_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_ResolveSubresourceRegion
    //
    //! \since Release: 410
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_ResolveSubresourceRegion is D3D11 an analog of D3D12 ResolveSubresourceRegion.
    //!
    //!         \param [in]       pDstResource    Destination resource. Must be a created with the D3D11_USAGE_DEFAULT flag and be single-sampled.
    //!         \param [in]       DstSubresource  A zero-based index, that identifies the destination subresource. Use D3D11CalcSubresource to calculate the index.
    //!         \param [in]       DstX            The X coordinate of the left-most edge of the destination region.
    //!                                           The width of the destination region is the same as the width of the source rect.
    //!
    //!         \param [in]       DstY            The Y coordinate of the top-most edge of the destination region.
    //!                                           The height of the destination region is the same as the height of the source rect.
    //!
    //!         \param [in]       pSrcResource    Source resource. Must be multisampled.
    //!         \param [in]       SrcSubresource  The source subresource of the source resource.
    //!         \param [in]       pSrcRect        Specifies the rectangular region of the source resource to be resolved.
    //!                                           Passing NULL for pSrcRect specifies that the entire subresource is to be resolved.
    //!
    //!         \param [in]       Format          A DXGI_FORMAT that indicates how the multisampled resource will be resolved to a single-sampled resource.
    //!         \param [in]       ResolveMode     Specifies the operation used to resolve the source samples. NV_RESOLVE_MODE_SAMPLE_0 is the only supported mode.
    //!                                           NV_RESOLVE_MODE_SAMPLE_0 outputs sample 0 and discards all other samples.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  See MSDN for the API specific error codes.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_ResolveSubresourceRegion(
        __in ID3D12GraphicsCommandList1 *pCommandList,
        __in ID3D12Resource *pDstResource,
        __in UINT DstSubresource,
        __in UINT DstX,
        __in UINT DstY,
        __in ID3D12Resource *pSrcResource,
        __in UINT SrcSubresource,
        __in_opt RECT *pSrcRect,
        __in DXGI_FORMAT Format,
        __in NV_RESOLVE_MODE ResolveMode);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

    //! SUPPORTED OS:  Windows 8 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_2_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_TiledTexture2DArrayGetDesc
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D11_TiledTexture2DArrayGetDesc is an simple wrapper of ID3D11Texture2D::GetDesc
    //!                when pTiledTexture2DArray is created with NvAPI_D3D11_CreateTiledTexture2DArray.
    //!                Runtime doesn't know the created resource is actually a tiled resource.
    //!                So calling ID3D11Texture2D::GetDesc will get a desc without D3D11_RESOURCE_MISC_TILED in MiscFlags.
    //!                This wrapper API just adds D3D11_RESOURCE_MISC_TILED back.
    //!
    //!         \param [in]        pTiledTexture2DArray  Pointer of tiled texture2D array to get resource desc from.
    //!         \param [out]       pDesc                 Pointer to a resource description.

    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_TiledTexture2DArrayGetDesc(__in ID3D11Texture2D *pTiledTexture2DArray,
                                                           __out D3D11_TEXTURE2D_DESC *pDesc);

#endif // defined(__cplusplus) && defined(__d3d11_2_h__)

    //! SUPPORTED OS:  Windows 8 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_2_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_UpdateTileMappings
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D11_UpdateTileMappings is an extension of ID3D11DeviceContext2::UpdateTileMappings.
    //!                It allows pTiledResource to be a resource created with NvAPI_D3D11_CreateTiledTexture2DArray, and should be used only in such case.
    //!
    //!         \param [in]        pDeviceContext                       Must be Immediate DeviceContext.
    //!         \param [in]        pTiledResource                       A pointer to the tiled texture 2D array resource created by NvAPI_D3D11_CreateTiledTexture2DArray.
    //!         \param [in]        NumTiledResourceRegions              The number of tiled resource regions.
    //!         \param [in]        pTiledResourceRegionStartCoordinates An array of D3D11_TILED_RESOURCE_COORDINATE structures that describe the starting coordinates of the tiled resource regions. Cannot be NULL.
    //!         \param [in]        pTiledResourceRegionSizes            An array of D3D11_TILE_REGION_SIZE structures that describe the sizes of the tiled resource regions. Cannot be NULL.
    //!         \param [in]        pTilePool                            A pointer to the tile pool. This resource should be created by standard API.
    //!         \param [in]        NumRanges                            The number of tile-pool ranges.
    //!         \param [in]        pRangeFlags                          An array of D3D11_TILE_RANGE_FLAG values that describe each tile-pool range.
    //!         \param [in]        pTilePoolStartOffsets                An array of offsets into the tile pool. These are 0-based tile offsets, counting in tiles (not bytes).
    //!         \param [in]        pRangeTileCounts                     An array of values that specify the number of tiles in each tile-pool range.
    //!         \param [in]        Flags                                A combination of D3D11_TILE_MAPPING_FLAGS values that are combined by using a bitwise OR operation.

    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_UpdateTileMappings(
        __in ID3D11DeviceContext2 *pDeviceContext,
        __in ID3D11Resource *pTiledResource,
        __in UINT NumTiledResourceRegions,
        __in const D3D11_TILED_RESOURCE_COORDINATE *pTiledResourceRegionStartCoordinates,
        __in const D3D11_TILE_REGION_SIZE *pTiledResourceRegionSizes,
        __in ID3D11Buffer *pTilePool,
        __in UINT NumRanges,
        __in const UINT *pRangeFlags,
        __in const UINT *pTilePoolStartOffsets,
        __in const UINT *pRangeTileCounts,
        __in UINT Flags);

#endif // defined(__cplusplus) && defined(__d3d11_2_h__)

    //! SUPPORTED OS:  Windows 8 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_2_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CopyTileMappings
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D11_CopyTileMappings is an extension of ID3D11DeviceContext2::CopyTileMappings
    //!                It allows pDestTiledResource or pSourceTiledResource or both to be created with NvAPI_D3D11_CreateTiledTexture2DArray.
    //!                It should be used only in such case.
    //!
    //!         \param [in]        pDeviceContext                       Must be Immediate DeviceContext.
    //!         \param [in]        pDestTiledResource                   Tiled resource created by NvAPI_D3D11_CreateTiledTexture2DArray to copy tile mappings into.
    //!         \param [in]        pDestRegionStartCoordinate           A pointer to a D3D11_TILED_RESOURCE_COORDINATE structure that describes the starting coordinates of the destination tiled resource.
    //!         \param [in]        pSourceTiledResource                 Tiled resource created by NvAPI_D3D11_CreateTiledTexture2DArray to copy tile mappings from.
    //!         \param [in]        pSourceRegionStartCoordinate         A pointer to a D3D11_TILED_RESOURCE_COORDINATE structure that describes the starting coordinates of the source tiled resource.
    //!         \param [in]        pTileRegionSize                      A pointer to a D3D11_TILE_REGION_SIZE structure that describes the size of the tiled region.
    //!         \param [in]        Flags                                A combination of D3D11_TILE_MAPPING_FLAGS values that are combined by using a bitwise OR operation.

    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_CopyTileMappings(
        __in ID3D11DeviceContext *pDeviceContext,
        __in ID3D11Resource *pDestTiledResource,
        __in const D3D11_TILED_RESOURCE_COORDINATE *pDestRegionStartCoordinate,
        __in ID3D11Resource *pSourceTiledResource,
        __in const D3D11_TILED_RESOURCE_COORDINATE *pSourceRegionStartCoordinate,
        __in const D3D11_TILE_REGION_SIZE *pTileRegionSize,
        __in UINT Flags);

#endif // defined(__cplusplus) && defined(__d3d11_2_h__)

    //! SUPPORTED OS:  Windows 8 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_2_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_TiledResourceBarrier
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D11_TiledResourceBarrier is an extension of ID3D11DeviceContext2::TiledResourceBarrier, but only works on ID3D11Resource(no support for ID3D11View).
    //!                If pTiledResourceAccessBeforeBarrier or pTiledResourceAccessAfterBarrier or both are created by NvAPI_D3D11_CreateTiledTexture2DArray,
    //!                NvAPI_D3D11_TiledResourceBarrier must be used instead of ID3D11DeviceContext2::TiledResourceBarrier.
    //!
    //!         \param [in]        pDeviceContext                          Must be Immediate DeviceContext.
    //!         \param [in]        pTiledResourceAccessBeforeBarrier       Access operations on this resource must complete before the access operations on the object that pTiledResourceAccessAfterBarrier specifies.
    //!         \param [in]        pTiledResourceAccessAfterBarrier        Access operations on this resource must begin after the access operations on the object that pTiledResourceAccessBeforeBarrier specifies.

    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_TiledResourceBarrier(
        __in ID3D11DeviceContext *pDeviceContext,
        __in ID3D11Resource *pTiledResourceAccessBeforeBarrier,
        __in ID3D11Resource *pTiledResourceAccessAfterBarrier);

#endif // defined(__cplusplus) && defined(__d3d11_2_h__)

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_AliasMSAATexture2DAsNonMSAA
    //
    //! \code
    //!   DESCRIPTION: This function allows creating (aliasing) a non-MSAA Texture2D object using the same memory as the given multi-sampled
    //!                texture (pInputTex). The surface created would be bloated in width and height but it will have SampleCount = 1
    //!                For 2X MSAA: OutTex.Width = InputTex.Width * 2, outTex.Height = InputTex.Height
    //!                For 4X MSAA: OutTex.Width = InputTex.Width * 2, outTex.Height = InputTex.Height * 2
    //!                For 8X MSAA: OutTex.Width = InputTex.Width * 4, outTex.Height = InputTex.Height * 2
    //!                Only textures SampleQuality = 0 can be aliased as Non MSAA
    //!                The app should ensure that original texture is released only after the aliased copy is released.
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different thread
    //!                than the one calling immediate device setstate functions.
    //!
    //!         \param [in]        pDevice             current d3d device
    //!         \param [in]        pInputTex           The MultiSampled Texture2D resource that is being aliased
    //!         \param [out]       ppOutTex            The aliased non AA copy MultiSampled Texture2D resource
    //!
    //!
    //! \return :: NVAPI_OK                   if the call succeeds.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_AliasMSAATexture2DAsNonMSAA(__in ID3D11Device *pDevice,
                                                            __in ID3D11Texture2D *pInputTex,
                                                            __out ID3D11Texture2D **ppOutTex);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__)) && (!defined(CINTERFACE))
    typedef UINT NvAPI_D3D11_SWIZZLE_MODE;

    typedef enum _NV_SWIZZLE_MODE
    {
        NV_SWIZZLE_POS_X = 0,
        NV_SWIZZLE_NEG_X = 1,
        NV_SWIZZLE_POS_Y = 2,
        NV_SWIZZLE_NEG_Y = 3,
        NV_SWIZZLE_POS_Z = 4,
        NV_SWIZZLE_NEG_Z = 5,
        NV_SWIZZLE_POS_W = 6,
        NV_SWIZZLE_NEG_W = 7
    } NV_SWIZZLE_MODE;

    typedef enum _NV_SWIZZLE_OFFSET
    {
        NV_SWIZZLE_OFFSET_X = 0,
        NV_SWIZZLE_OFFSET_Y = 4,
        NV_SWIZZLE_OFFSET_Z = 8,
        NV_SWIZZLE_OFFSET_W = 12
    } NV_SWIZZLE_OFFSET;

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__)) && (!defined(CINTERFACE))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__)) && (!defined(CINTERFACE))
#define NV_CUSTOM_SEMANTIC_MAX_LIMIT 32


    typedef enum NV_CUSTOM_SEMANTIC_TYPE
    {
        NV_NONE_SEMANTIC = 0,
        NV_X_RIGHT_SEMANTIC = 1,
        NV_VIEWPORT_MASK_SEMANTIC = 2,
        NV_XYZW_RIGHT_SEMANTIC = 3,
        NV_VIEWPORT_MASK_2_SEMANTIC = 4,

        NV_POSITION_SEMANTIC = 5,
        NV_CLIP_DISTANCE_0_SEMANTIC = 6, // MultiView can accept upto two vec4 values. So the application should not use
        NV_CLIP_DISTANCE_1_SEMANTIC = 7, // more than 2 of the below Clip / Cull semantics in a single shader.
        NV_CULL_DISTANCE_0_SEMANTIC = 8,
        NV_CULL_DISTANCE_1_SEMANTIC = 9,
        NV_GENERIC_ATTRIBUTE_SEMANTIC = 10,

        NV_PACKED_EYE_INDEX_SEMANTIC = 17,
        NV_CUSTOM_SEMANTIC_MAX = NV_CUSTOM_SEMANTIC_MAX_LIMIT,
    } NV_CUSTOM_SEMANTIC_TYPE;

    typedef struct _NV_CUSTOM_SEMANTIC
    {
        UINT version; // NV_CUSTOM_SEMANTIC_VERSION

        NV_CUSTOM_SEMANTIC_TYPE NVCustomSemanticType; // type of custom semantic (NV_CUSTOM_SEMANTIC_TYPE)
        NvAPI_LongString NVCustomSemanticNameString;  // name of custom semantic e.g. "NV_X_RIGHT", "NV_VIEWPORT_MASK"
        BOOL RegisterSpecified;                       // (optional) set to TRUE to explicitly provide register number and mask as below
        NvU32 RegisterNum;                            // (optional) output register which has the custom semantic.
        NvU32 RegisterMask;                           // (optional) output register component mask which has the custom semantic (X:1, Y:2, Z:4)
        NvU32 Reserved;                               // reserved
    } NV_CUSTOM_SEMANTIC;

#define NV_CUSTOM_SEMANTIC_VERSION MAKE_NVAPI_VERSION(NV_CUSTOM_SEMANTIC, 1)


#endif // defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__)) && (!defined(CINTERFACE))

#if defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    typedef struct NvAPI_D3D11_CREATE_GEOMETRY_SHADER_EX_V5
    {
        UINT version;

        BOOL UseViewportMask;
        BOOL OffsetRtIndexByVpIndex;
        BOOL ForceFastGS;
        BOOL DontUseViewportOrder;
        BOOL UseAttributeSkipMask;
        BOOL UseCoordinateSwizzle;
        NvAPI_D3D11_SWIZZLE_MODE *pCoordinateSwizzling;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
        BOOL ConvertToFastGS;                 // reserved
        BOOL UseSpecificShaderExt;            // TRUE if creating minimal specific shaders with nvapi shader extensions
    } NvAPI_D3D11_CREATE_GEOMETRY_SHADER_EX_V5;

    typedef NvAPI_D3D11_CREATE_GEOMETRY_SHADER_EX_V5 NvAPI_D3D11_CREATE_GEOMETRY_SHADER_EX;
#define NVAPI_D3D11_CREATEGEOMETRYSHADEREX_2_VER_5 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_GEOMETRY_SHADER_EX_V5, 5)

#define NVAPI_D3D11_CREATEGEOMETRYSHADEREX_2_VERSION NVAPI_D3D11_CREATEGEOMETRYSHADEREX_2_VER_5


    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateGeometryShaderEx
    //
    //! \fn NvAPI_D3D11_CreateGeometryShaderEx
    //!
    //!   DESCRIPTION: This function allows us to extend the creation of geometry shaders with extra bits
    //!                of functionality.
    //!
    //!                The first parameters are identical to ID3D11Device::CreateGeometryShader()
    //!                so please refer to its documentation for their usage.
    //!
    //!                The new parameter is UseViewportMask which is to tell the driver to create a shader
    //!                that outputs a viewport mask instead when a viewport index is indicated.
    //!                Outputting a viewport mask allows a single primitive to land on many different viewports
    //!                as specified by the bits set in the mask, rather than to rely on a single number that tells it
    //!                which unique viewport it would be drawn on.
    //!                This can be used for example in conjunction with the setting of coordinates swizzling (see XXX_NVAPI function)
    //!                to generates multiple adjacent views of the same primitive in a more efficient fashion
    //!                (outputting the primitive only once).
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different
    //!                thread than the one calling immediate device setstate functions.
    //!
    //! \since Release:
    //!
    //!   \param [in]  pDevice               The device pointer
    //!   \param [in]  pShaderBytecode       A pointer to the compiled shader.
    //!   \param [in]  BytecodeLength        Size of the compiled geometry shader.
    //!   \param [in]  pClassLinkage         A pointer to a class linkage interface. Can be NULL.
    //!   \param [in]  UseViewportMask       Set to FALSE for custom semantic shaders. Tell the driver to create a shader that outputs the viewport mask in lieu of the viewport index. See above description.
    //!   \param [in]  OffsetRtIndexByVpIndex Set to FALSE for custom semantic shaders. The Rendertarget index is offset by the viewport index
    //!   \param [in]  ForceFastGS           If TRUE, GS must be written with maxvertexcount(1) and must pass-through input vertex 0 to the output without modification
    //!   \param [in]  DontUseViewportOrder  Default FALSE for Primitives batched per viewport to improve performance. Set TRUE for API order (slow).
    //!   \param [in]  UseAttributeSkipMask  reserved
    //!   \param [in]  UseCoordinateSwizzle  reserved
    //!   \param [in]  pCoordinateSwizzling  reserved
    //!   \param [in]  NumCustomSemantics    Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
    //!   \param [in]  pCustomSemantics      pointer to array of NV_CUSTOM_SEMANTIC
    //!   \param [in]  ConvertToFastGS       reserved
    //!   \param [in]  UseSpecificShaderExt  TRUE if creating minimal specific shaders with nvapi shader extensions
    //!   \param [out] ppGeometryShader      Address of a pointer to a ID3D11GeometryShader interface.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_CreateGeometryShaderEx_2(__in ID3D11Device *pDevice, __in const void *pShaderBytecode,
                                                         __in SIZE_T BytecodeLength, __in_opt ID3D11ClassLinkage *pClassLinkage,
                                                         __in const NvAPI_D3D11_CREATE_GEOMETRY_SHADER_EX *pCreateGeometryShaderExArgs,
                                                         __out ID3D11GeometryShader **ppGeometryShader);

#endif // defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    typedef struct NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V1
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
    } NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V1;

    typedef struct NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V2
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
        BOOL UseWithFastGS;                   // reserved
    } NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V2;

    typedef struct NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V3
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
        BOOL UseWithFastGS;                   // reserved
        BOOL UseSpecificShaderExt;            // TRUE if creating minimal specific shaders with nvapi shader extensions
    } NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V3;

    typedef NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V3 NvAPI_D3D11_CREATE_VERTEX_SHADER_EX;
#define NVAPI_D3D11_CREATEVERTEXSHADEREX_VER_1 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V1, 1)

#define NVAPI_D3D11_CREATEVERTEXSHADEREX_VER_2 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V2, 2)

#define NVAPI_D3D11_CREATEVERTEXSHADEREX_VER_3 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_VERTEX_SHADER_EX_V2, 3)

#define NVAPI_D3D11_CREATEVERTEXSHADEREX_VERSION NVAPI_D3D11_CREATEVERTEXSHADEREX_VER_3


    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateVertexShaderEx
    //
    //! \fn NvAPI_D3D11_CreateVertexShaderEx
    //!
    //!   DESCRIPTION: This function allows us to extend the creation of vertex shaders with extra bits
    //!                of functionality.
    //!
    //!                The first parameters are identical to ID3D11Device::CreateVertexShader()
    //!                so please refer to its documentation for their usage.
    //!
    //!                The new parameter are custom semantics which allow setting of custom semantic variables
    //!                in the shader
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different thread
    //!                than the one calling immediate device setstate functions.
    //!
    //! \since Release:
    //!
    //!   \param [in]  pDevice               The device pointer
    //!   \param [in]  pShaderBytecode       A pointer to the compiled shader.
    //!   \param [in]  BytecodeLength        Size of the compiled vertex shader.
    //!   \param [in]  pClassLinkage         A pointer to a class linkage interface. Can be NULL.
    //!   \param [in]  NumCustomSemantics    Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
    //!   \param [in]  pCustomSemantics      pointer to array of NV_CUSTOM_SEMANTIC
    //!   \param [in]  UseWithFastGS         reserved
    //!   \param [in]  UseSpecificShaderExt  TRUE if creating minimal specific shaders with nvapi shader extensions
    //!   \param [out] ppVertexShader        Address of a pointer to a ID3D11VertexShader interface.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_CreateVertexShaderEx(__in ID3D11Device *pDevice, __in const void *pShaderBytecode,
                                                     __in SIZE_T BytecodeLength, __in_opt ID3D11ClassLinkage *pClassLinkage,
                                                     __in const NvAPI_D3D11_CREATE_VERTEX_SHADER_EX *pCreateVertexShaderExArgs,
                                                     __out ID3D11VertexShader **ppVertexShader);

#endif // defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    typedef struct NvAPI_D3D11_CREATE_HULL_SHADER_EX_V1
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
        BOOL UseWithFastGS;                   // reserved
    } NvAPI_D3D11_CREATE_HULL_SHADER_EX_V1;

    typedef struct NvAPI_D3D11_CREATE_HULL_SHADER_EX_V2
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
        BOOL UseWithFastGS;                   // reserved
        BOOL UseSpecificShaderExt;            // TRUE if creating minimal specific shaders with nvapi shader extensions
    } NvAPI_D3D11_CREATE_HULL_SHADER_EX_V2;

    typedef NvAPI_D3D11_CREATE_HULL_SHADER_EX_V2 NvAPI_D3D11_CREATE_HULL_SHADER_EX;
#define NVAPI_D3D11_CREATEHULLSHADEREX_VER_1 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_HULL_SHADER_EX_V1, 1)

#define NVAPI_D3D11_CREATEHULLSHADEREX_VER_2 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_HULL_SHADER_EX_V1, 2)

#define NVAPI_D3D11_CREATEHULLSHADEREX_VERSION NVAPI_D3D11_CREATEHULLSHADEREX_VER_2


    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateHullShaderEx
    //
    //! \fn NvAPI_D3D11_CreateHullShaderEx
    //!
    //!   DESCRIPTION: This function allows us to extend the creation of hull shaders with extra bits
    //!                of functionality.
    //!
    //!                The first parameters are identical to ID3D11Device::CreateHullShader()
    //!                so please refer to its documentation for their usage.
    //!
    //!                The new parameter are custom semantics which allow setting of custom semantic variables
    //!                in the shader
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different thread
    //!                than the one calling immediate device setstate functions.
    //!
    //! \since Release:
    //!
    //!   \param [in]  pDevice               The device pointer
    //!   \param [in]  pShaderBytecode       A pointer to the compiled shader.
    //!   \param [in]  BytecodeLength        Size of the compiled hull shader.
    //!   \param [in]  pClassLinkage         A pointer to a class linkage interface. Can be NULL.
    //!   \param [in]  NumCustomSemantics    Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
    //!   \param [in]  pCustomSemantics      pointer to array of NV_CUSTOM_SEMANTIC
    //!   \param [in]  UseWithFastGS         reserved
    //!   \param [in]  UseSpecificShaderExt  TRUE if creating minimal specific shaders with nvapi shader extensions
    //!   \param [out] ppHullShader          Address of a pointer to a ID3D11HullShader interface.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_CreateHullShaderEx(__in ID3D11Device *pDevice, __in const void *pShaderBytecode,
                                                   __in SIZE_T BytecodeLength, __in_opt ID3D11ClassLinkage *pClassLinkage,
                                                   __in const NvAPI_D3D11_CREATE_HULL_SHADER_EX *pCreateHullShaderExArgs,
                                                   __out ID3D11HullShader **ppHullShader);

#endif // defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    typedef struct NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V1
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
    } NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V1;

    typedef struct NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V2
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
        BOOL UseWithFastGS;                   // reserved
    } NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V2;

    typedef struct NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V3
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
        BOOL UseWithFastGS;                   // reserved
        BOOL UseSpecificShaderExt;            // TRUE if creating minimal specific shaders with nvapi shader extensions
    } NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V3;

    typedef NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V3 NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX;
#define NVAPI_D3D11_CREATEDOMAINSHADEREX_VER_1 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V1, 1)

#define NVAPI_D3D11_CREATEDOMAINSHADEREX_VER_2 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V2, 2)

#define NVAPI_D3D11_CREATEDOMAINSHADEREX_VER_3 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX_V3, 3)

#define NVAPI_D3D11_CREATEDOMAINSHADEREX_VERSION NVAPI_D3D11_CREATEDOMAINSHADEREX_VER_3


    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateDomainShaderEx
    //
    //! \fn NvAPI_D3D11_CreateDomainShaderEx
    //!
    //!   DESCRIPTION: This function allows us to extend the creation of domain shaders with extra bits
    //!                of functionality.
    //!
    //!                The first parameters are identical to ID3D11Device::CreateDomainShader()
    //!                so please refer to its documentation for their usage.
    //!
    //!                The new parameter are custom semantics which allow setting of custom semantic variables
    //!                in the shader
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different thread
    //!                than the one calling immediate device setstate functions.
    //!
    //! \since Release:
    //!
    //!   \param [in]  pDevice               The device pointer
    //!   \param [in]  pShaderBytecode       A pointer to the compiled shader.
    //!   \param [in]  BytecodeLength        Size of the compiled domain shader.
    //!   \param [in]  pClassLinkage         A pointer to a class linkage interface. Can be NULL.
    //!   \param [in]  NumCustomSemantics    Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
    //!   \param [in]  pCustomSemantics      pointer to array of NV_CUSTOM_SEMANTIC
    //!   \param [in]  UseWithFastGS         reserved
    //!   \param [in]  UseSpecificShaderExt  TRUE if creating minimal specific shaders with nvapi shader extensions
    //!   \param [out] ppDomainShader        Address of a pointer to a ID3D11DomainShader interface.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_CreateDomainShaderEx(__in ID3D11Device *pDevice, __in const void *pShaderBytecode,
                                                     __in SIZE_T BytecodeLength, __in_opt ID3D11ClassLinkage *pClassLinkage,
                                                     __in const NvAPI_D3D11_CREATE_DOMAIN_SHADER_EX *pCreateDomainShaderExArgs,
                                                     __out ID3D11DomainShader **ppDomainShader);

#endif // defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    typedef struct NvAPI_D3D11_CREATE_PIXEL_SHADER_EX_V1
    {
        UINT version;

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC
    } NvAPI_D3D11_CREATE_PIXEL_SHADER_EX_V1;

#define NVAPI_D3D11_CREATEPIXELSHADEREX_VER_1 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_PIXEL_SHADER_EX_V1, 1)


    typedef struct NvAPI_D3D11_CREATE_PIXEL_SHADER_EX_V2
    {
        UINT version; // Always use NVAPI_D3D11_CREATEPIXELSHADEREX_VERSION

        NvU32 NumCustomSemantics;                                     // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics;                         // pointer to array of NV_CUSTOM_SEMANTIC
        NvU32 bEnableSuperSamplingPredicationForVRS : 1;              // This enables sampling within a pixel for SuperSampling mode of Variable Rate Shading for relevant attributes tagged with "sample" modifier
        NvU32 bEnableSuperSamplingPredicationForVRSAllAttributes : 1; // This enables sampling within a pixel for SuperSampling mode of Variable Rate Shading for all relevant attributes
        NvU32 reserved : 30;                                          // Reserved for further use
    } NvAPI_D3D11_CREATE_PIXEL_SHADER_EX_V2;

    typedef NvAPI_D3D11_CREATE_PIXEL_SHADER_EX_V2 NvAPI_D3D11_CREATE_PIXEL_SHADER_EX;
#define NVAPI_D3D11_CREATEPIXELSHADEREX_VER_2 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_PIXEL_SHADER_EX_V2, 2)

#define NVAPI_D3D11_CREATEPIXELSHADEREX_VERSION NVAPI_D3D11_CREATEPIXELSHADEREX_VER_2


    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreatePixelShaderEx_2
    //
    //! \fn NvAPI_D3D11_CreatePixelShaderEx_2
    //!
    //!   DESCRIPTION: This function allows us to extend the creation of pixel shaders with extra bits
    //!                of functionality.
    //!
    //!                The first parameters are identical to ID3D11Device::CreatePixelShader()
    //!                so please refer to its documentation for their usage.
    //!
    //!                The new parameter are custom semantics which allow setting of custom semantic variables
    //!                in the shader
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different thread
    //!                than the one calling immediate device setstate functions.
    //!
    //! \since Release: 410
    //!
    //!   \param [in]  pDevice               The device pointer
    //!   \param [in]  pShaderBytecode       A pointer to the compiled shader.
    //!   \param [in]  BytecodeLength        Size of the compiled domain shader.
    //!   \param [in]  pClassLinkage         A pointer to a class linkage interface. Can be NULL.
    //!   \param [in]  NumCustomSemantics    Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
    //!   \param [in]  pCustomSemantics      pointer to array of NV_CUSTOM_SEMANTIC
    //!   \param [out] ppPixelShader         Address of a pointer to a ID3D11PixelShader interface.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_CreatePixelShaderEx_2(__in ID3D11Device *pDevice, __in const void *pShaderBytecode,
                                                      __in SIZE_T BytecodeLength, __in_opt ID3D11ClassLinkage *pClassLinkage,
                                                      __in const NvAPI_D3D11_CREATE_PIXEL_SHADER_EX *pCreatePixelShaderExArgs,
                                                      __out ID3D11PixelShader **ppPixelShader);

#endif // defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__)) && (!defined(CINTERFACE))

    typedef enum _NV_FASTGS_FLAGS
    {
        NV_FASTGS_USE_VIEWPORT_MASK = 0x01,           // Causes SV_ViewportArrayIndex value to be interpreted as a bitmask of viewports to broadcast to.
        NV_FASTGS_OFFSET_RT_INDEX_BY_VP_INDEX = 0x02, // Causes SV_RenderTargetArrayIndex value to be offset by the viewport index when broadcasting.
        NV_FASTGS_STRICT_API_ORDER = 0x04,            // Causes broadcast primitives to be rendered strictly in API order (slow).
                                                      // By default, primitives may be batched per viewport to improve performance.
    } NV_FASTGS_FLAGS;

#endif // defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__)) && (!defined(CINTERFACE))

#if defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    struct NvAPI_D3D11_CREATE_FASTGS_EXPLICIT_DESC_V1
    {
        NvU32 version;                                  // ALWAYS == NVAPI_D3D11_CREATEFASTGSEXPLICIT_VER
        NvU32 flags;                                    // A combination of flags from NV_FASTGS_FLAGS
        NvAPI_D3D11_SWIZZLE_MODE *pCoordinateSwizzling; // [optional] Array of 16 coordinate swizzle modes, one per viewport. NULL if not used.
                                                        // The output x, y, z, and w coordinates of all vertices can be set to any of the coordinates or their
                                                        // negated versions i.e. {x, y, z, w, -x, -y, -z, -w}. Coordinates are swizzled before any viewport
                                                        // operation occurs i.e. before frustum clipping, scaling, and viewport clipping. And after
                                                        // last of vertex/tesselation/geometry shader stage, stream-out and viewport broadcast expansion (see NV_FASTGS_USE_VIEWPORT_MASK)
                                                        // pCoordinateSwizzling[i] sets the swizzle-mode of each component for viewport i.
                                                        // See NV_SWIZZLE_MODE for values of allowed swizzle modes.
                                                        // See NV_SWIZZLE_OFFSET for bit offset from where NV_SWIZZLE_MODE to be set for each component.
                                                        // For example :
                                                        // 1. To set swizzle for viewport 0 such that -  w and z are unchanged and values of x and y are swapped :
                                                        // pCoordinateSwizzling[0] = (NV_SWIZZLE_POS_W << NV_SWIZZLE_OFFSET_W) |
                                                        //                           (NV_SWIZZLE_POS_Z << NV_SWIZZLE_OFFSET_Z) |
                                                        //                           (NV_SWIZZLE_POS_X << NV_SWIZZLE_OFFSET_Y) |
                                                        //                           (NV_SWIZZLE_POS_Y << NV_SWIZZLE_OFFSET_X);
                                                        // 2. To set swizzle for viewport 0 such that -  w, z and y are unchanged and value of x is negated :
                                                        // pCoordinateSwizzling[0] = (NV_SWIZZLE_POS_W << NV_SWIZZLE_OFFSET_W) |
                                                        //                           (NV_SWIZZLE_POS_Z << NV_SWIZZLE_OFFSET_Z) |
                                                        //                           (NV_SWIZZLE_POS_Y << NV_SWIZZLE_OFFSET_Y) |
                                                        //                           (NV_SWIZZLE_NEG_X << NV_SWIZZLE_OFFSET_X);
                                                        // Need to set some valid combination of swizzle-modes for all viewports, irrespective of whether that viewport is set.
                                                        // Invalid swizzle-mode for any viewport (even if that viewport is not set) may result in removal of device.
    };

#define NVAPI_D3D11_CREATEFASTGSEXPLICIT_VER1 MAKE_NVAPI_VERSION(NvAPI_D3D11_CREATE_FASTGS_EXPLICIT_DESC_V1, 1)

#define NVAPI_D3D11_CREATEFASTGSEXPLICIT_VER NVAPI_D3D11_CREATEFASTGSEXPLICIT_VER1


    typedef NvAPI_D3D11_CREATE_FASTGS_EXPLICIT_DESC_V1 NvAPI_D3D11_CREATE_FASTGS_EXPLICIT_DESC;

    ////////////////////////////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateFastGeometryShaderExplicit
    //
    //! \fn NvAPI_D3D11_CreateFastGeometryShaderExplicit
    //!
    //!   DESCRIPTION: This function will create a fast geometry shader written using an "explicit"
    //!                coding style, rather than converting a standard GS. For the explicit coding
    //!                style, the GS must be written with maxvertexcount(1), and must pass-through
    //!                input vertex 0 to the output without modification.
    //!
    //!                Additional per-primitive outputs may also be computed and written to the single
    //!                output vertex. If these outputs are read by the pixel shader, they must be
    //!                declared with the "nointerpolation" attribute in the PS input signature;
    //!                otherwise, visual corruption may occur. Also, unlike D3D API, there is no guarantee
    //!                that pixel shader will get the default value of an attribute if that attribute is not written
    //!                by the earlier shader stage in the pipeline.
    //!
    //!                The first four parameters are identical to ID3D11Device::CreateGeometryShader(),
    //!                so please refer to its documentation for their usage.
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different thread
    //!                than the one calling immediate device setstate functions.
    //!
    //! \since Release:
    //!
    //!   \param [in]  pDevice               The device pointer
    //!   \param [in]  pShaderBytecode       A pointer to the compiled shader.
    //!   \param [in]  BytecodeLength        Size of the compiled geometry shader.
    //!   \param [in]  pClassLinkage         A pointer to a class linkage interface. Can be NULL.
    //!   \param [in]  pCreateFastGSArgs     A pointer to a NvAPI_D3D11_CREATE_FASTGS_EXPLICIT struct.
    //!   \param [out] ppGeometryShader      Address of a pointer to a ID3D11GeometryShader interface.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //
    ////////////////////////////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_CreateFastGeometryShaderExplicit(__in ID3D11Device *pDevice, __in const void *pShaderBytecode,
                                                                 __in SIZE_T BytecodeLength, __in_opt ID3D11ClassLinkage *pClassLinkage,
                                                                 __in const NvAPI_D3D11_CREATE_FASTGS_EXPLICIT_DESC *pCreateFastGSArgs,
                                                                 __out ID3D11GeometryShader **ppGeometryShader);

#endif // defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))
    ////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateFastGeometryShader
    //
    //! \fn NvAPI_D3D11_CreateFastGeometryShader
    //!
    //!   DESCRIPTION: This function will convert a regular geometry shader into a fast GS variant if possible.
    //!                It will not do any validation regarding the compatibility of the resulting fast GS with any
    //!                Pixel shader. The validation has to be done by the application manually.
    //!
    //!                The parameters are identical to ID3D11Device::CreateGeometryShader()
    //!                so please refer to its documentation for their usage.
    //!
    //!                If the shader is too complex or is not in adequate form to be converted to fast GS
    //!                this function will simply fail. You should then call ID3D11Device::CreateGeometryShader()
    //!                to create the regular geometry shader.
    //!
    //!                This function is  free-threaded create compatible i.e. it can be called from a different thread
    //!                than the one calling immediate device setstate functions.
    //!
    //! \since Release:
    //!
    //!   \param [in]  pDevice               The device pointer
    //!   \param [in]  pShaderBytecode       A pointer to the compiled shader.
    //!   \param [in]  BytecodeLength        Size of the compiled geometry shader.
    //!   \param [in]  pClassLinkage         A pointer to a class linkage interface. Can be NULL.
    //!   \param [out] ppGeometryShader      Address of a pointer to a ID3D11GeometryShader interface.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_CreateFastGeometryShader(__in ID3D11Device *pDevice, __in const void *pShaderBytecode,
                                                         __in SIZE_T BytecodeLength, __in_opt ID3D11ClassLinkage *pClassLinkage,
                                                         __out ID3D11GeometryShader **ppGeometryShader);

#endif // defined(__cplusplus) && defined(__d3d11_h__) && (!defined(CINTERFACE))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && defined(__d3d11_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_DecompressView
    //
    //! \code
    //!   DESCRIPTION: This function is used to decompress a surface using the currently bound programmable sample positions.
    //!
    //!                This is needed:
    //!                  - When writing to a surface in a region previously rendered by different sample positions and no clear was done.
    //!                  - When reading a surface in a shader that was rendered using non-standard sample positions.
    //!                  - When copying from a surface that was rendered using non-standard sample positions.
    //!
    //!         \param [in]        pDevice             Current d3d11 device
    //!         \param [in]        pDeviceContext      Current d3d11 device context
    //!         \param [in]        pView               Current view to decompress
    //!
    //!
    //! \return ::NVAPI_OK     if the call succeeds.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_DecompressView(__in ID3D11Device *pDevice, __in ID3D11DeviceContext *pDeviceContext, __in ID3D11View *pView);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)

    //! Enum for CreatePSO extensions.
    //! \ingroup dx
    //! constant 5 is assigned to two members of this enum becuase the first member name contains a typo: EXTNENSION. Please use the correctly-spelled enumerator.
    typedef enum _NV_PSO_EXTENSION
    {
        NV_PSO_RASTER_EXTENSION = 0,
        NV_PSO_REQUEST_FASTGS_EXTENSION = 1,
        NV_PSO_GEOMETRY_SHADER_EXTENSION = 2,
        NV_PSO_ENABLE_DEPTH_BOUND_TEST_EXTENSION = 3,
        NV_PSO_EXPLICIT_FASTGS_EXTENSION = 4,
        NV_PSO_SET_SHADER_EXTNENSION_SLOT_AND_SPACE = 5,
        NV_PSO_SET_SHADER_EXTENSION_SLOT_AND_SPACE = 5,
        NV_PSO_VERTEX_SHADER_EXTENSION = 6,
        NV_PSO_DOMAIN_SHADER_EXTENSION = 7,
        NV_PSO_HULL_SHADER_EXTENSION = 9,
    } NV_PSO_EXTENSION;

    struct NVAPI_D3D12_PSO_EXTENSION_DESC_V1
    {
        NvU32 baseVersion; //<! Always use NV_PSO_EXTENSION_DESC_VER
        NV_PSO_EXTENSION psoExtension;
    };

#define NV_PSO_EXTENSION_DESC_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_EXTENSION_DESC_V1, 1)

#define NV_PSO_EXTENSION_DESC_VER NV_PSO_EXTENSION_DESC_VER_1


    typedef NVAPI_D3D12_PSO_EXTENSION_DESC_V1 NVAPI_D3D12_PSO_EXTENSION_DESC;

    struct NVAPI_D3D12_PSO_RASTERIZER_STATE_DESC_V1 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version; //<! Always use NV_RASTERIZER_PSO_EXTENSION_DESC_VER
        // These are additional parameters on the top of D3D12_RASTERIZER_DESC
        bool ProgrammableSamplePositionsEnable; //<! enable Programmable Samples feature
        bool InterleavedSamplingEnable;         //<! when jitter is enabled, an app need to fill the whole arrays below, otherwise only as much entries as samples
        NvU8 SampleCount;                       //<! number of samples. In TIR N->1 it needs to match N, in non-TIR it needs to match RT sample count. Ignored if ForcePerSampleInterlock is set
        NvU8 SamplePositionsX[16];              //<! x positions in API sample order
        NvU8 SamplePositionsY[16];              //<! y positions in API sample order
        NVAPI_QUAD_FILLMODE QuadFillMode;       //<! Fill a triangle outside its bounds as a screen-aligned quad, matching the tri's bounding-box or filling the full viewport.
        bool PostZCoverageEnable;               //<! Enable pixel-shader input SV_COVERAGE to account for z-test in early-z mode.
        bool CoverageToColorEnable;             //<! Enable output of coverage to a color render-target.
        NvU8 CoverageToColorRTIndex;            //<! Index of RT for coverage-to-color.

        // Added with NV_RASTERIZER_PSO_EXTENSION_DESC_VER_2
        bool TargetIndepentRasterWithDepth; //<! TargetIndepentRasterWithDepth = TRUE enables rasterezation mode where sample count of both raster and depth-stencil buffer are equal and do not match RT sample count.
        NvU8 ForcedSampleCount;             //<! Must be set when TargetIndepentRasterWithDepth is true - refers to SampleDesc.Count for the DSV

        // Reserved
        NvU8 reserved[62]; //<! reserved for expansion, set to zero.
    };

#define NV_RASTERIZER_PSO_EXTENSION_DESC_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_RASTERIZER_STATE_DESC_V1, 1)

#define NV_RASTERIZER_PSO_EXTENSION_DESC_VER_2 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_RASTERIZER_STATE_DESC_V1, 2)

#define NV_RASTERIZER_PSO_EXTENSION_DESC_VER NV_RASTERIZER_PSO_EXTENSION_DESC_VER_2


    typedef NVAPI_D3D12_PSO_RASTERIZER_STATE_DESC_V1 NVAPI_D3D12_PSO_RASTERIZER_STATE_DESC;

    struct NVAPI_D3D12_PSO_CREATE_FASTGS_EXPLICIT_DESC_V1 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version;                                  // ALWAYS == NV_FASTGS_EXPLICIT_PSO_EXTENSION_VER
        NvU32 flags;                                    // A combination of flags from NV_FASTGS_FLAGS
        NvAPI_D3D11_SWIZZLE_MODE *pCoordinateSwizzling; // [optional] Array of 16 coordinate swizzle modes, one per viewport. NULL if not used.
                                                        // The output x, y, z, and w coordinates of all vertices can be set to any of the coordinates or their
                                                        // negated versions i.e. {x, y, z, w, -x, -y, -z, -w}. Coordinates are swizzled before any viewport
                                                        // operation occurs i.e. before frustum clipping, scaling, and viewport clipping. And after
                                                        // last of vertex/tesselation/geometry shader stage, stream-out and viewport broadcast expansion (see NV_FASTGS_USE_VIEWPORT_MASK)
                                                        // pCoordinateSwizzling[i] sets the swizzle-mode of each component for viewport i.
                                                        // See NV_SWIZZLE_MODE for values of allowed swizzle modes.
                                                        // See NV_SWIZZLE_OFFSET for bit offset from where NV_SWIZZLE_MODE to be set for each component.
                                                        // For example :
                                                        // 1. To set swizzle for viewport 0 such that -  w and z are unchanged and values of x and y are swapped :
                                                        // pCoordinateSwizzling[0] = (NV_SWIZZLE_POS_W << NV_SWIZZLE_OFFSET_W) |
                                                        //                           (NV_SWIZZLE_POS_Z << NV_SWIZZLE_OFFSET_Z) |
                                                        //                           (NV_SWIZZLE_POS_X << NV_SWIZZLE_OFFSET_Y) |
                                                        //                           (NV_SWIZZLE_POS_Y << NV_SWIZZLE_OFFSET_X);
                                                        // 2. To set swizzle for viewport 0 such that -  w, z and y are unchanged and value of x is negated :
                                                        // pCoordinateSwizzling[0] = (NV_SWIZZLE_POS_W << NV_SWIZZLE_OFFSET_W) |
                                                        //                           (NV_SWIZZLE_POS_Z << NV_SWIZZLE_OFFSET_Z) |
                                                        //                           (NV_SWIZZLE_POS_Y << NV_SWIZZLE_OFFSET_Y) |
                                                        //                           (NV_SWIZZLE_NEG_X << NV_SWIZZLE_OFFSET_X);
                                                        // Need to set some valid combination of swizzle-modes for all viewports, irrespective of whether that viewport is set.
                                                        // Invalid swizzle-mode for any viewport (even if that viewport is not set) may result in removal of device.
    };

#define NV_FASTGS_EXPLICIT_PSO_EXTENSION_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_CREATE_FASTGS_EXPLICIT_DESC_V1, 1)

#define NV_FASTGS_EXPLICIT_PSO_EXTENSION_VER NV_FASTGS_EXPLICIT_PSO_EXTENSION_VER_1


    typedef NVAPI_D3D12_PSO_CREATE_FASTGS_EXPLICIT_DESC_V1 NVAPI_D3D12_PSO_CREATE_FASTGS_EXPLICIT_DESC;

    struct NVAPI_D3D12_PSO_REQUEST_FAST_GEOMETRY_SHADER_DESC_V1 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version; //<! Always use NV_FAST_GEOMETRY_SHADER_PSO_EXTENSION_VER
    };

#define NV_FAST_GEOMETRY_SHADER_PSO_EXTENSION_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_REQUEST_FAST_GEOMETRY_SHADER_DESC_V1, 1)

#define NV_FAST_GEOMETRY_SHADER_PSO_EXTENSION_VER NV_FAST_GEOMETRY_SHADER_PSO_EXTENSION_VER_1


    typedef NVAPI_D3D12_PSO_REQUEST_FAST_GEOMETRY_SHADER_DESC_V1 NVAPI_D3D12_PSO_REQUEST_FAST_GEOMETRY_SHADER_DESC;

    struct NVAPI_D3D12_PSO_GEOMETRY_SHADER_DESC_V5 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version; //<! Always use NV_GEOMETRY_SHADER_PSO_EXTENSION_DESC_VER

        BOOL UseViewportMask;                           // Set to FALSE for custom semantic shaders. Tell the driver to create a shader that outputs the viewport mask in lieu of the viewport index. See above description.
        BOOL OffsetRtIndexByVpIndex;                    // Set to FALSE for custom semantic shaders. The Rendertarget index is offset by the viewport index
        BOOL ForceFastGS;                               // If TRUE, GS must be written with maxvertexcount(1) and must pass-through input vertex 0 to the output without modification
        BOOL DontUseViewportOrder;                      // Default FALSE for Primitives batched per viewport to improve performance. Set TRUE for API order (slow).
        BOOL UseAttributeSkipMask;                      // Reserved
        BOOL UseCoordinateSwizzle;                      // Reserved
        NvAPI_D3D11_SWIZZLE_MODE *pCoordinateSwizzling; // Reserved

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // pointer to array of NV_CUSTOM_SEMANTIC

        BOOL ConvertToFastGS; // Tell the driver to attempt to create a fast geometry shader

        BOOL UseSpecificShaderExt; // TRUE if creating minimal specific shaders with nvapi shader extensions
    };

#define NV_GEOMETRY_SHADER_PSO_EXTENSION_DESC_VER_5 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_GEOMETRY_SHADER_DESC_V5, 5)

#define NV_GEOMETRY_SHADER_PSO_EXTENSION_DESC_VER NV_GEOMETRY_SHADER_PSO_EXTENSION_DESC_VER_5


    typedef NVAPI_D3D12_PSO_GEOMETRY_SHADER_DESC_V5 NVAPI_D3D12_PSO_GEOMETRY_SHADER_DESC;

    struct NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V1 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version; //<! Always use NV_VERTEX_SHADER_PSO_EXTENSION_DESC_VER

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // Pointer to array of NV_CUSTOM_SEMANTIC
    };

    struct NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V2 : public NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V1
    {
        BOOL UseWithFastGS; // Reserved
    };

    struct NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V3 : public NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V2
    {
        BOOL UseSpecificShaderExt; // TRUE if creating minimal specific shaders with NvAPI shader extensions
    };

#define NV_VERTEX_SHADER_PSO_EXTENSION_DESC_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V1, 1)

#define NV_VERTEX_SHADER_PSO_EXTENSION_DESC_VER_2 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V2, 2)

#define NV_VERTEX_SHADER_PSO_EXTENSION_DESC_VER_3 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V3, 3)

#define NV_VERTEX_SHADER_PSO_EXTENSION_DESC_VER NV_VERTEX_SHADER_PSO_EXTENSION_DESC_VER_3


    typedef NVAPI_D3D12_PSO_VERTEX_SHADER_DESC_V3 NVAPI_D3D12_PSO_VERTEX_SHADER_DESC;

    struct NVAPI_D3D12_PSO_HULL_SHADER_DESC_V1 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version; //<! Always use NV_HULL_SHADER_PSO_EXTENSION_DESC_VER

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // Pointer to array of NV_CUSTOM_SEMANTIC
        BOOL UseWithFastGS;                   // Reserved
    };

    struct NVAPI_D3D12_PSO_HULL_SHADER_DESC_V2 : public NVAPI_D3D12_PSO_HULL_SHADER_DESC_V1
    {
        BOOL UseSpecificShaderExt; // TRUE if creating minimal specific shaders with nvapi shader extensions
    };

#define NV_HULL_SHADER_PSO_EXTENSION_DESC_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_HULL_SHADER_DESC_V1, 1)

#define NV_HULL_SHADER_PSO_EXTENSION_DESC_VER_2 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_HULL_SHADER_DESC_V2, 2)

#define NV_HULL_SHADER_PSO_EXTENSION_DESC_VER NV_HULL_SHADER_PSO_EXTENSION_DESC_VER_2


    typedef NVAPI_D3D12_PSO_HULL_SHADER_DESC_V2 NVAPI_D3D12_PSO_HULL_SHADER_DESC;

    struct NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V1 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version; //<! Always use NV_DOMAIN_SHADER_PSO_EXTENSION_DESC_VER

        NvU32 NumCustomSemantics;             // Number of custom semantics elements (upto NV_CUSTOM_SEMANTIC_MAX) provided in array pointer pCustomSemantics
        NV_CUSTOM_SEMANTIC *pCustomSemantics; // Pointer to array of NV_CUSTOM_SEMANTIC
    };

    struct NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V2 : public NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V1
    {
        BOOL UseWithFastGS; // Reserved
    };

    struct NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V3 : public NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V2
    {
        BOOL UseSpecificShaderExt; // TRUE if creating minimal specific shaders with NvAPI shader extensions
    };

#define NV_DOMAIN_SHADER_PSO_EXTENSION_DESC_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V1, 1)

#define NV_DOMAIN_SHADER_PSO_EXTENSION_DESC_VER_2 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V2, 2)

#define NV_DOMAIN_SHADER_PSO_EXTENSION_DESC_VER_3 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V3, 3)

#define NV_DOMAIN_SHADER_PSO_EXTENSION_DESC_VER NV_DOMAIN_SHADER_PSO_EXTENSION_DESC_VER_3


    typedef NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC_V3 NVAPI_D3D12_PSO_DOMAIN_SHADER_DESC;

    struct NVAPI_D3D12_PSO_ENABLE_DEPTH_BOUND_TEST_DESC_V1 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version; //<! Always use NV_ENABLE_DEPTH_BOUND_TEST_PSO_EXTENSION_DESC_VER
        bool EnableDBT;
    };

#define NV_ENABLE_DEPTH_BOUND_TEST_PSO_EXTENSION_DESC_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_ENABLE_DEPTH_BOUND_TEST_DESC_V1, 1)

#define NV_ENABLE_DEPTH_BOUND_TEST_PSO_EXTENSION_DESC_VER NV_ENABLE_DEPTH_BOUND_TEST_PSO_EXTENSION_DESC_VER_1


    typedef NVAPI_D3D12_PSO_ENABLE_DEPTH_BOUND_TEST_DESC_V1 NVAPI_D3D12_PSO_ENABLE_DEPTH_BOUND_TEST_DESC;

    struct NVAPI_D3D12_PSO_SET_SHADER_EXTENSION_SLOT_DESC_V1 : public NVAPI_D3D12_PSO_EXTENSION_DESC
    {
        NvU32 version; //<! Always use NV_SET_SHADER_EXTENSION_SLOT_DESC_VER
        NvU32 uavSlot;
        NvU32 registerSpace;
    };

#define NV_SET_SHADER_EXTENSION_SLOT_DESC_VER_1 MAKE_NVAPI_VERSION(NVAPI_D3D12_PSO_SET_SHADER_EXTENSION_SLOT_DESC_V1, 1)

#define NV_SET_SHADER_EXTENSION_SLOT_DESC_VER NV_SET_SHADER_EXTENSION_SLOT_DESC_VER_1


    typedef NVAPI_D3D12_PSO_SET_SHADER_EXTENSION_SLOT_DESC_V1 NVAPI_D3D12_PSO_SET_SHADER_EXTENSION_SLOT_DESC;

    //! \ingroup dx
    //! Enum for compute shader derivative modes
    typedef enum _NV_COMPUTE_SHADER_DERIVATIVES
    {
        NV_COMPUTE_SHADER_DERIVATIVE_NONE = 0, // No support for compute derivatives

        NV_COMPUTE_SHADER_DERIVATIVE_GROUP_LINEAR = 1, // Compute derivatives supported. Quads are defined as groups of four threads with linear thread IDs of the form 4N..4N + 3

        NV_COMPUTE_SHADER_DERIVATIVE_GROUP_QUADS = 2, // Compute derivatives supported. Quads are defined as group of 2x2 thread IDs in a 2D (or 3D) CTA. In this mode
                                                      // the app must ensure that width and height of the CTA dimension are both multiples of 2
    } NV_COMPUTE_SHADER_DERIVATIVES;

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateGraphicsPipelineState
    //
    //! \code
    //!   DESCRIPTION: This function will create PSO with provided extensions
    //!
    //! \note   Note that "Cached PSO" functionality is not supported with the Pipeline State Object created using
    //!         this NvAPI. GetCachedBlob() should not be called with such a PSO.
    //!
    //!         \param [in]        pDevice              Current d3d device
    //!         \param [in]        pPSODesc             PSO description of type D3D12_GRAPHICS_PIPELINE_STATE_DESC
    //!         \param [in]        numExtensions        Number of extensions
    //!         \param [in]        ppExtensions         Array of PSO extensions (see NV_PSO_EXTENSION  for possible extensions)
    //!         \param [out]       ppPSO                Output PSO object of type ID3D12PipelineState
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return ::NVAPI_OK     if the call succeeds.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_CreateGraphicsPipelineState(__in ID3D12Device *pDevice,
                                                            __in const D3D12_GRAPHICS_PIPELINE_STATE_DESC *pPSODesc,
                                                            NvU32 numExtensions,
                                                            __in const NVAPI_D3D12_PSO_EXTENSION_DESC **ppExtensions,
                                                            __out ID3D12PipelineState **ppPSO);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateComputePipelineState
    //
    //! \code
    //!   DESCRIPTION: This function will create PSO with provided extensions
    //!
    //!         \param [in]        pDevice              Current d3d device
    //!         \param [in]        pPSODesc             PSO description of type D3D12_COMPUTE_PIPELINE_STATE_DESC
    //!         \param [in]        numExtensions        Number of extensions
    //!         \param [in]        ppExtensions         Array of PSO extensions (see NV_PSO_EXTENSION  for possible extensions)
    //!         \param [out]       ppPSO                Output PSO object of type ID3D12PipelineState
    //!
    //! \since Release: 364
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return ::NVAPI_OK     if the call succeeds.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_CreateComputePipelineState(__in ID3D12Device *pDevice,
                                                           __in const D3D12_COMPUTE_PIPELINE_STATE_DESC *pPSODesc,
                                                           NvU32 numExtensions,
                                                           __in const NVAPI_D3D12_PSO_EXTENSION_DESC **ppExtensions,
                                                           __out ID3D12PipelineState **ppPSO);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_SetDepthBoundsTestValues
    //
    //! \code
    //!   DESCRIPTION: This function will set the minDepth and maxDepth values for depth bounds test
    //!                To enable/ disable depth bounds test use PSO extension NV_PSO_ENABLE_DEPTH_BOUND_TEST_EXTENSION
    //!                in the nvapi NvAPI_D3D12_CreateGraphicsPipelineState
    //!
    //!         \param [in]        pCommandList         Command List to set depth bounds test
    //!         \param [in]        minDepth             min value for depth bound test
    //!         \param [in]        maxDepth             max value for depth bound test
    //!
    //! The valid values for minDepth and maxDepth are such that 0 <= minDepth <= maxDepth <= 1
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return ::NVAPI_OK     if the call succeeds.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_SetDepthBoundsTestValues(__in ID3D12GraphicsCommandList *pCommandList,
                                                         __in const float minDepth,
                                                         __in const float maxDepth);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateReservedResource
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: Tiled resource is supported for Texture2D Array, however, but only when mip packing is not triggered.
    //!                So any mip level cannot be smaller than a single tile size(64KB).
    //!                This set of API is an extension of D3D12 support for tiled resource to allow a tiled texture2D array with mip packing.
    //!                If any of API from this set is used, using all of them is highly recommended.
    //!                It includes NvAPI_D3D12_CreateReservedResource, NvAPI_D3D12_CreateHeap, NvAPI_D3D12_ReservedResourceGetDesc,
    //!                NvAPI_D3D12_UpdateTileMappings, NvAPI_D3D12_CopyTileMappings, NvAPI_D3D12_ResourceAliasingBarrier.
    //!                Reminder: all API in this set other than NvAPI_D3D12_CreateReservedResource won't has D3D Debug Layer information.
    //!
    //!                NvAPI_D3D12_CreateReservedResource is an extension of ID3D12Device::CreateReservedResource.
    //!                Use this function to create a tiled Texture2D array with mip packing.
    //!                Runtime doesn't know the created resource is actually a tiled resource.
    //!                Any other D3D12 API where runtime will check whether resource is tiled or not, has a corresponding NVAPI version and they should be used.
    //!                Different from DX11 implementation, we highly recommend replace all ID3D12Device::CreateReservedResource with NvAPI_D3D12_CreateReservedResource,
    //!                and use bTexture2DArrayMipPack to control which creation to use.
    //!                Otherwise, NvAPI_D3D12_ResourceAliasingBarrier will fail if any resource is not created by NvAPI_D3D12_CreateReservedResource.
    //!                DX11 implementation doesn't have this restriction and resource created by NVAPI and D3D API can be used together.
    //!                pHeap is necessary when bTexture2DArrayMipPack is true. pHeap can be any heap and this API doens't change anything to it.
    //!
    //!         \param [in]        pDevice                A pointer to D3D12 device.
    //!         \param [in]        pDesc                  A pointer to a D3D12_RESOURCE_DESC structure that describes the resource.
    //!         \param [in]        InitialState           The initial state of the resource, as a bitwise-OR'd combination of D3D12_RESOURCE_STATES enumeration constants.
    //!         \param [in]        pOptimizedClearValue   Specifies a D3D12_CLEAR_VALUE that describes the default value for a clear color.
    //!         \param [in]        riid                   The globally unique identifier (GUID) for the resource interface.
    //!         \param [out]       ppvResource            A pointer to a memory block that receives a pointer to the resource. Cannot be NULL.
    //!         \param [in]        bTexture2DArrayMipPack Whether pDesc indicates it's a texture2D array resource with mip packing.
    //!                                                   TRUE:  Use NVAPI to create. Will check pHeap to be not NULL.
    //!                                                   FALSE: Standard D3D12 API will be used, use DebugDevice to check any runtime ERROR. Won't check pHeap
    //!         \param [in]        pHeap                  A pointer to ID3D12Heap. Cannot be NULL when bTexture2DArrayMipPack is true.
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_CreateReservedResource(__in ID3D12Device *pDevice,
                                                       __in const D3D12_RESOURCE_DESC *pDesc,
                                                       __in D3D12_RESOURCE_STATES InitialState,
                                                       __in const D3D12_CLEAR_VALUE *pOptimizedClearValue,
                                                       __in REFIID riid,
                                                       __out void **ppvResource,
                                                       __in bool bTexture2DArrayMipPack,
                                                       __in ID3D12Heap *pHeap);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateHeap
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_CreateHeap is a safe replacement of ID3D12Device::CreateHeap with no functionality change and overhead.
    //!                In NvAPI_D3D12_UpdateTileMappings, pTilePool must be created with NvAPI_D3D12_CreateHeap and otherwise NvAPI_D3D12_UpdateTileMappings will fail.
    //!                In other word, any tile pool used in NvAPI_D3D12_UpdateTileMappings must be created by NvAPI_D3D12_CreateHeap.
    //!
    //!         \param [in]        pDevice                A pointer to D3D12 device.
    //!         \param [in]        pDesc                  A pointer to a D3D12_HEAP_DESC structure that describes the heap.
    //!         \param [in]        riid                   The globally unique identifier (GUID) for the resource interface.
    //!         \param [out]       ppvHeap                A pointer to a memory block that receives a pointer to the heap. Cannot be NULL.
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_CreateHeap(__in ID3D12Device *pDevice,
                                           __in const D3D12_HEAP_DESC *pDesc,
                                           __in REFIID riid,
                                           __out void **ppvHeap);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateHeap2
    //
    //! \since Release: 465
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_CreateHeap2 is a wrapper of ID3D12Device::CreateHeap
    //!                NV_D3D12_HEAP_FLAG_CPUVISIBLE_VIDMEM gives driver hint to create the heap on vidmem
    //!                only upload heaps use this flag currently, others behave exactly as ID3D12Device::CreateHeap
    //!                Best practice: Query available space in cpu visible vidmem using NvAPI_D3D12_QueryCpuVisibleVidmem
    //!                before using this flag
    //!
    //!         \param [in]        pDevice                A pointer to D3D12 device.
    //!         \param [in]        pDesc                  A pointer to a D3D12_HEAP_DESC structure that describes the heap
    //!         \param [in]        pNVHeapParams          A pointer to a NV_HEAP_PARAMS structure that gives additional NV specific resource creation information(NV_D3D12_HEAP_FLAGS below for more info)
    //!         \param [in]        riid                   The globally unique identifier (GUID) for the resource interface.
    //!         \param [out]       ppvHeap                A pointer to a memory block that receives a pointer to the heap. Cannot be NULL.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    typedef enum
    {
        NV_D3D12_HEAP_FLAG_NONE = 0,
        NV_D3D12_HEAP_FLAG_CPUVISIBLE_VIDMEM = 1, //!< Hint to create heap in cpuvisible vidmem
    } NV_D3D12_HEAP_FLAGS;

    typedef struct _NV_HEAP_PARAMS_V1
    {
        NvU32 version;                   //!< Version of structure. Must always be first member
        NV_D3D12_HEAP_FLAGS NVHeapFlags; //!< Additional NV specific flags
    } NV_HEAP_PARAMS_V1;

#define NV_HEAP_PARAMS_VER_1 MAKE_NVAPI_VERSION(NV_HEAP_PARAMS_V1, 1)


#define NV_HEAP_PARAMS_VER NV_HEAP_PARAMS_VER_1

    typedef NV_HEAP_PARAMS_V1 NV_HEAP_PARAMS;

    NVAPI_INTERFACE NvAPI_D3D12_CreateHeap2(__in ID3D12Device *pDevice,
                                            __in const D3D12_HEAP_DESC *pDesc,
                                            __in const NV_HEAP_PARAMS *pNVHeapParams,
                                            __in REFIID riid,
                                            __out void **ppvHeap);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_QueryCpuVisibleVidmem
    //
    //! \since Release: 465
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_QueryCpuVisibleVidmem queries total bytes and unused bytes in
    //!                cpu visible vdmem
    //!
    //!         \param [in]        pDevice                A pointer to D3D12 device.
    //!         \param [out]       pTotalBytes            Total bytes in cpu visible vidmem
    //!         \param [out]       pFreeBytes             Unused bytes in cpu visible vidmem
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_QueryCpuVisibleVidmem(__in ID3D12Device *pDevice,
                                                      __out NvU64 *pTotalBytes,
                                                      __out NvU64 *pFreeBytes);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_ReservedResourceGetDesc
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_ReservedResourceGetDesc is an simple wrapper of ID3D12Resource::GetDesc when pReservedResource is created by NvAPI_D3D12_CreateReservedResource.
    //!                Runtime doesn't know the created resource is actually a tiled resource if bTexture2DArrayMipPack = true in NvAPI_D3D12_CreateReservedResource.
    //!                So calling ID3D12Resource::GetDesc on such resource will get a desc with D3D12_TEXTURE_LAYOUT_UNKNOWN in Layout instead of D3D12_TEXTURE_LAYOUT_64KB_UNDEFINED_SWIZZLE.
    //!                This wrapper API just set Layout to D3D12_TEXTURE_LAYOUT_64KB_UNDEFINED_SWIZZLE if Layout is D3D12_TEXTURE_LAYOUT_UNKNOWN.
    //!
    //!         \param [in]        pReservedResource  Pointer of reserved resource to get resource desc from.
    //!         \param [out]       pDesc              Pointer to a resource description.
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_ReservedResourceGetDesc(__in ID3D12Resource *pReservedResource,
                                                        __out D3D12_RESOURCE_DESC *pDesc);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_UpdateTileMappings
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_UpdateTileMappings is an extension of ID3D12CommandQueue::UpdateTileMappings.
    //!                pTiledResource must be created by NvAPI_D3D12_CreateReservedResource.
    //!                pTilePool must be created by NvAPI_D3D12_CreateHeap.
    //!
    //!         \param [in]        pCommandQueue                        A pointer to ID3D12CommandQueue.
    //!         \param [in]        pTiledResource                       A pointer to the tiled resource created by NvAPI_D3D12_CreateReservedResource.
    //!         \param [in]        NumTiledResourceRegions              The number of tiled resource regions.
    //!         \param [in]        pTiledResourceRegionStartCoordinates An array of D3D12_TILED_RESOURCE_COORDINATE structures that describe the starting coordinates of the tiled resource regions. Cannot be NULL.
    //!         \param [in]        pTiledResourceRegionSizes            An array of D3D12_TILE_REGION_SIZE structures that describe the sizes of the tiled resource regions. Cannot be NULL.
    //!         \param [in]        pTilePool                            A pointer to the resource heap created by NvAPI_D3D12_CreateHeap.
    //!         \param [in]        NumRanges                            The number of tile-pool ranges.
    //!         \param [in]        pRangeFlags                          A pointer to an array of D3D12_TILE_RANGE_FLAGS values that describes each tile range.
    //!         \param [in]        pTilePoolStartOffsets                An array of offsets into the tile pool. These are 0-based tile offsets, counting in tiles (not bytes).
    //!         \param [in]        pRangeTileCounts                     An array of values that specify the number of tiles in each tile-pool range.
    //!         \param [in]        Flags                                A combination of D3D12_TILE_MAPPING_FLAGS values that are combined by using a bitwise OR operation.
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_UpdateTileMappings(
        __in ID3D12CommandQueue *pCommandQueue,
        __in ID3D12Resource *pResource,
        __in UINT NumResourceRegions,
        __in const D3D12_TILED_RESOURCE_COORDINATE *pResourceRegionStartCoordinates,
        __in const D3D12_TILE_REGION_SIZE *pResourceRegionSizes,
        __in ID3D12Heap *pHeap,
        __in UINT NumRanges,
        __in const D3D12_TILE_RANGE_FLAGS *pRangeFlags,
        __in const UINT *pHeapRangeStartOffsets,
        __in const UINT *pRangeTileCounts,
        __in D3D12_TILE_MAPPING_FLAGS Flags);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CopyTileMappings
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_CopyTileMappings is an extension of ID3D12CommandQueue::CopyTileMappings
    //!                pDstResource and pSrcResource must be created by NvAPI_D3D12_CreateReservedResource.
    //!
    //!         \param [in]        pCommandQueue                        A pointer to ID3D12CommandQueue.
    //!         \param [in]        pDstResource                         Tiled resource created by NvAPI_D3D12_CreateReservedResource to copy tile mappings into.
    //!         \param [in]        pDstRegionStartCoordinate            A pointer to a D3D12_TILED_RESOURCE_COORDINATE structure that describes the starting coordinates of the destination reserved resource.
    //!         \param [in]        pSrcResource                         Tiled resource created by NvAPI_D3D12_CreateReservedResource to copy tile mappings from.
    //!         \param [in]        pSourceRegionStartCoordinate         A pointer to a D3D12_TILED_RESOURCE_COORDINATE structure that describes the starting coordinates of the source reserved resource.
    //!         \param [in]        pTileRegionSize                      A pointer to a D3D12_TILE_REGION_SIZE structure that describes the size of the reserved region.
    //!         \param [in]        Flags                                One member of D3D12_TILE_MAPPING_FLAGS.
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_CopyTileMappings(
        __in ID3D12CommandQueue *pCommandQueue,
        __in ID3D12Resource *pDstResource,
        __in const D3D12_TILED_RESOURCE_COORDINATE *pDstRegionStartCoordinate,
        __in ID3D12Resource *pSrcResource,
        __in const D3D12_TILED_RESOURCE_COORDINATE *pSrcRegionStartCoordinate,
        __in const D3D12_TILE_REGION_SIZE *pRegionSize,
        __in D3D12_TILE_MAPPING_FLAGS Flags);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_ResourceAliasingBarrier
    //
    //! \since Release: 375
    //
    //! \code
    //!   DESCRIPTION: NvAPI_D3D12_ResourceAliasingBarrier is an extension of ID3D12GraphicsCommandList::ResourceBarrier, but only for D3D12_RESOURCE_ALIASING_BARRIER.
    //!                Both resource in pBarriers must be created by NvAPI_D3D12_CreateReservedTexture2DArray.
    //!
    //!         \param [in]        pCommandList                            A pointer to ID3D12GraphicsCommandList.
    //!         \param [in]        NumBarriers                             The number of submitted barrier descriptions.
    //!         \param [in]        pBarriers                               Pointer to an array of barrier descriptions with D3D12_RESOURCE_ALIASING_BARRIER type only.
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_ResourceAliasingBarrier(
        __in ID3D12GraphicsCommandList *pCommandList,
        __in UINT NumBarriers,
        __in const D3D12_RESOURCE_BARRIER *pBarriers);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    // Experimental API for internal use. DO NOT USE!

    typedef struct
    {
        NvU32 version;       //!< Structure version
        NvU32 surfaceHandle; //!< [OUT] driver handle for a UAV (that can be used as a cudaSurfaceObject_t)
        NvU64 gpuVAStart;    //!< [OUT] gpu virtual address where resource starts
        NvU64 gpuVASize;     //!< [OUT] virtual memory size
    } NVAPI_UAV_INFO_V1;

    typedef struct
    {
        NvU32 version;       //!< Structure version
        NvU32 surfaceHandle; //!< [OUT] driver handle for a UAV (that can be used as a cudaSurfaceObject_t)
        NvU64 gpuVAStart;    //!< [OUT] gpu virtual address where resource starts
        NvU64 gpuVASize;     //!< [OUT] virtual memory size
        NvU64 outFlags;
    } NVAPI_UAV_INFO_V2;

#define NVAPI_UAV_INFO_VER1 1

#define NVAPI_UAV_INFO_VER2 MAKE_NVAPI_VERSION(NVAPI_UAV_INFO_V2, 2)


#define NVAPI_UAV_INFO_VER NVAPI_UAV_INFO_VER2

    typedef NVAPI_UAV_INFO_V2 NVAPI_UAV_INFO;

    NVAPI_INTERFACE NvAPI_D3D12_CaptureUAVInfo(__in ID3D12Device *pDevice,
                                               __out NVAPI_UAV_INFO *pUAVInfo);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d11_h__)
    typedef struct
    {
        NvU32 version;               //!< [IN]
        NVDX_ObjectHandle hResource; //!< [IN]
        NvU64 gpuVAStart;            //!< [OUT] gpu virtual address where resource starts
        NvU64 gpuVASize;             //!< [OUT] virtual memory size
    } NV_GET_GPU_VIRTUAL_ADDRESS_V1;

#define NV_GET_GPU_VIRTUAL_ADDRESS_VER1 MAKE_NVAPI_VERSION(NV_GET_GPU_VIRTUAL_ADDRESS_V1, 1)

#define NV_GET_GPU_VIRTUAL_ADDRESS_VER NV_GET_GPU_VIRTUAL_ADDRESS_VER1

#define NV_GET_GPU_VIRTUAL_ADDRESS NV_GET_GPU_VIRTUAL_ADDRESS_V1


    //! SUPPORTED OS:  Windows 10
    //!
    // Experimental API for internal use. DO NOT USE!
    NVAPI_INTERFACE NvAPI_D3D11_GetResourceGPUVirtualAddressEx(__in ID3D11Device *pDevice,
                                                               __inout NV_GET_GPU_VIRTUAL_ADDRESS *pParams);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))
///////////////////////////////////////////////////////////////////////////////
//
// MetaCommands common defines
//
//! \since Release: 400
//
///////////////////////////////////////////////////////////////////////////////
#pragma pack(push, 4)

    enum NV_D3D_GRAPHICS_STATES
    {
        NV_D3D_GRAPHICS_STATE_NONE = 0,
        NV_D3D_GRAPHICS_STATE_IA_VERTEX_BUFFERS = (1 << 0),
        NV_D3D_GRAPHICS_STATE_IA_INDEX_BUFFER = (1 << 1),
        NV_D3D_GRAPHICS_STATE_IA_PRIMITIVE_TOPOLOGY = (1 << 2),
        NV_D3D_GRAPHICS_STATE_DESCRIPTOR_HEAP = (1 << 3),
        NV_D3D_GRAPHICS_STATE_GRAPHICS_ROOT_SIGNATURE = (1 << 4),
        NV_D3D_GRAPHICS_STATE_COMPUTE_ROOT_SIGNATURE = (1 << 5),
        NV_D3D_GRAPHICS_STATE_RS_VIEWPORTS = (1 << 6),
        NV_D3D_GRAPHICS_STATE_RS_SCISSOR_RECTS = (1 << 7),
        NV_D3D_GRAPHICS_STATE_PREDICATION = (1 << 8),
        NV_D3D_GRAPHICS_STATE_OM_RENDER_TARGETS = (1 << 9),
        NV_D3D_GRAPHICS_STATE_OM_STENCIL_REF = (1 << 10),
        NV_D3D_GRAPHICS_STATE_OM_BLEND_FACTOR = (1 << 11),
        NV_D3D_GRAPHICS_STATE_PIPELINE_STATE = (1 << 12),
        NV_D3D_GRAPHICS_STATE_SO_TARGETS = (1 << 13),
        NV_D3D_GRAPHICS_STATE_OM_DEPTH_BOUNDS = (1 << 14),
        NV_D3D_GRAPHICS_STATE_SAMPLE_POSITIONS = (1 << 15),
        NV_D3D_GRAPHICS_STATE_VIEW_INSTANCE_MASK = (1 << 16),
    };

    struct NVAPI_META_COMMAND_DESC
    {
        GUID Id;
        LPCWSTR Name;

        // states that the initialization and execution of the metacommand will dirty
        NV_D3D_GRAPHICS_STATES InitializationDirtyState;
        NV_D3D_GRAPHICS_STATES ExecutionDirtyState;
    };

    typedef NvU64 NV_META_COMMAND_BOOL;

#define NV_META_COMMAND_MAX_TENSOR_DIM 5

    // dimensions (Size and Stride) are always indexed this way, irrespective of NV_META_COMMAND_LAYOUT
    // For DimensionCount = 5: N, C, D, H, W
    // For DimensionCount = 4: N, C, H, W

#define NV_META_COMMAND_ACTIVATION_MAX_PARAMS 2


#if __cplusplus >= 201103L

#define compile_time_assert(b) static_assert((b), "Compile time assertion failed: " #b)


    enum NV_META_COMMAND_TENSOR_DATA_TYPE : NvU64
    {
        NV_META_COMMAND_TENSOR_DATA_TYPE_FLOAT32,
        NV_META_COMMAND_TENSOR_DATA_TYPE_FLOAT16,
        NV_META_COMMAND_TENSOR_DATA_TYPE_UINT32,

        NV_META_COMMAND_TENSOR_DATA_TYPE_COUNT,
    };

    enum NV_META_COMMAND_TENSOR_LAYOUT : NvU64
    {
        NV_META_COMMAND_TENSOR_LAYOUT_UNKNOWN,  // opaque HW-native layout
        NV_META_COMMAND_TENSOR_LAYOUT_STANDARD, // NCDHW - planar / row major layout (width is inner-most dimension, batch-size N is the outermost)
        NV_META_COMMAND_TENSOR_LAYOUT_COUNT,
    };

    enum NV_META_COMMAND_TENSOR_FLAGS : NvU64
    {
        NV_META_COMMAND_TENSOR_FLAG_NONE = 0,
        NV_META_COMMAND_TENSOR_FLAG_DATA_STATIC = 0x1, // data pointed by the tensor is static (i.e, won't be modified after command list recording)
    };

    enum NV_META_COMMAND_PRECISION : NvU64
    {
        NV_META_COMMAND_PRECISION_FLOAT32,
        NV_META_COMMAND_PRECISION_FLOAT16,
        NV_META_COMMAND_PRECISION_MUL_FLOAT16_ADD_FLOAT32,

        NV_META_COMMAND_PRECISION_COUNT,
    };

    struct NV_META_COMMAND_TENSOR_DESC
    {
        NV_META_COMMAND_TENSOR_DATA_TYPE DataType;
        NV_META_COMMAND_TENSOR_LAYOUT Layout;
        NV_META_COMMAND_TENSOR_FLAGS Flags;
        NvU64 DimensionCount; // 4 or 5
        NvU64 Size[NV_META_COMMAND_MAX_TENSOR_DIM];
        NvU64 Stride[NV_META_COMMAND_MAX_TENSOR_DIM]; // only used with NV_META_COMMAND_TENSOR_LAYOUT_STANDARD
    };

    enum NV_META_COMMAND_ACTIVATION_FUNCTION : NvU64
    {
        NV_META_COMMAND_ACTIVATION_FUNCTION_ELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_HARDMAX,
        NV_META_COMMAND_ACTIVATION_FUNCTION_HARD_SIGMOID,
        NV_META_COMMAND_ACTIVATION_FUNCTION_IDENTITY,
        NV_META_COMMAND_ACTIVATION_FUNCTION_LEAKY_RELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_LINEAR,
        NV_META_COMMAND_ACTIVATION_FUNCTION_LOG_SOFTMAX,
        NV_META_COMMAND_ACTIVATION_FUNCTION_PARAMETERIZED_RELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_PARAMETRIC_SOFTPLUS,
        NV_META_COMMAND_ACTIVATION_FUNCTION_RELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SCALED_ELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SCALED_TANH,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SIGMOID,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SOFTMAX,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SOFTPLUS,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SOFTSIGN,
        NV_META_COMMAND_ACTIVATION_FUNCTION_TANH,
        NV_META_COMMAND_ACTIVATION_FUNCTION_THRESHOLDED_RELU,

        NV_META_COMMAND_ACTIVATION_FUNCTION_COUNT,
    };

    struct NV_META_COMMAND_ACTIVATION_DESC
    {
        NV_META_COMMAND_ACTIVATION_FUNCTION Function;
        float Params[NV_META_COMMAND_ACTIVATION_MAX_PARAMS];
    };

#else

#define compile_time_assert(b) typedef char compile_time_assertion_failed_in_line_##__LINE__[(b) ? 1 : -1]

    enum NV_META_COMMAND_TENSOR_DATA_TYPE
    {
        NV_META_COMMAND_TENSOR_DATA_TYPE_FLOAT32,
        NV_META_COMMAND_TENSOR_DATA_TYPE_FLOAT16,
        NV_META_COMMAND_TENSOR_DATA_TYPE_UINT32,

        NV_META_COMMAND_TENSOR_DATA_TYPE_COUNT,
    };


    enum NV_META_COMMAND_TENSOR_LAYOUT
    {
        NV_META_COMMAND_TENSOR_LAYOUT_UNKNOWN,  // opaque HW-native layout
        NV_META_COMMAND_TENSOR_LAYOUT_STANDARD, // NCDHW - planar / row major layout (width is inner-most dimension, batch-size N is the outermost)
        NV_META_COMMAND_TENSOR_LAYOUT_COUNT,
    };

    enum NV_META_COMMAND_TENSOR_FLAGS
    {
        NV_META_COMMAND_TENSOR_FLAG_NONE = 0,
        NV_META_COMMAND_TENSOR_FLAG_DATA_STATIC = 0x1, // data pointed by the tensor is static (i.e, won't be modified after command list recording)
    };

    enum NV_META_COMMAND_PRECISION
    {
        NV_META_COMMAND_PRECISION_FLOAT32,
        NV_META_COMMAND_PRECISION_FLOAT16,
        NV_META_COMMAND_PRECISION_MUL_FLOAT16_ADD_FLOAT32,

        NV_META_COMMAND_PRECISION_COUNT,
    };

    struct NV_META_COMMAND_TENSOR_DESC
    {
        NvU64 DataType;       // NV_META_COMMAND_TENSOR_DATA_TYPE
        NvU64 Layout;         // NV_META_COMMAND_TENSOR_LAYOUT
        NvU64 Flags;          // NV_META_COMMAND_TENSOR_FLAGS
        NvU64 DimensionCount; // 4 or 5
        NvU64 Size[NV_META_COMMAND_MAX_TENSOR_DIM];
        NvU64 Stride[NV_META_COMMAND_MAX_TENSOR_DIM]; // only used with NV_META_COMMAND_TENSOR_LAYOUT_STANDARD
    };

    enum NV_META_COMMAND_ACTIVATION_FUNCTION
    {
        NV_META_COMMAND_ACTIVATION_FUNCTION_ELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_HARDMAX,
        NV_META_COMMAND_ACTIVATION_FUNCTION_HARD_SIGMOID,
        NV_META_COMMAND_ACTIVATION_FUNCTION_IDENTITY,
        NV_META_COMMAND_ACTIVATION_FUNCTION_LEAKY_RELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_LINEAR,
        NV_META_COMMAND_ACTIVATION_FUNCTION_LOG_SOFTMAX,
        NV_META_COMMAND_ACTIVATION_FUNCTION_PARAMETERIZED_RELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_PARAMETRIC_SOFTPLUS,
        NV_META_COMMAND_ACTIVATION_FUNCTION_RELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SCALED_ELU,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SCALED_TANH,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SIGMOID,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SOFTMAX,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SOFTPLUS,
        NV_META_COMMAND_ACTIVATION_FUNCTION_SOFTSIGN,
        NV_META_COMMAND_ACTIVATION_FUNCTION_TANH,
        NV_META_COMMAND_ACTIVATION_FUNCTION_THRESHOLDED_RELU,

        NV_META_COMMAND_ACTIVATION_FUNCTION_COUNT,
    };

    struct NV_META_COMMAND_ACTIVATION_DESC
    {
        NvU64 Function; // NV_META_COMMAND_ACTIVATION_FUNCTION
        float Params[NV_META_COMMAND_ACTIVATION_MAX_PARAMS];
    };

#endif

    struct NV_META_COMMAND_OPTIONAL_TENSOR_DESC : NV_META_COMMAND_TENSOR_DESC
    {
        // true when the tensor isn't needed (e.g, bias is optional)
        NV_META_COMMAND_BOOL IsNull;
    };

    struct NV_META_COMMAND_OPTIONAL_ACTIVATION_DESC : NV_META_COMMAND_ACTIVATION_DESC
    {
        // true when activation isn't needed
        NV_META_COMMAND_BOOL IsNull;
    };

    enum NV_META_COMMAND_PADDING_MODE
    {
        NV_META_COMMAND_PADDING_ZEROS,
        NV_META_COMMAND_PADDING_MIRROR,
        NV_META_COMMAND_PADDING_CLAMP,
        NV_META_COMMAND_PADDING_CONSTANT,

        NV_META_COMMAND_PADDING_COUNT,
    };

    struct NV_META_COMMAND_PADDING_DESC
    {
        NV_META_COMMAND_PADDING_MODE Mode;

        // used with NV_META_COMMAND_PADDING_CONSTANT
        float ConstantPadVal;
    };

    // use this enum to query resource sizes using GetRequiredParameterResourceSize() call
    enum NV_META_COMMAND_RESOURCE_TYPE
    {
        NV_META_COMMAND_RESOURCE_TYPE_INPUT = 0,
        NV_META_COMMAND_RESOURCE_TYPE_OUTPUT = 1,

        NV_META_COMMAND_RESOURCE_TYPE_FILTER = 2,
        NV_META_COMMAND_RESOURCE_TYPE_WEIGHT = 2,
        NV_META_COMMAND_RESOURCE_TYPE_BIAS = 3,

        NV_META_COMMAND_RESOURCE_TYPE_MATRIX_A = 0,
        NV_META_COMMAND_RESOURCE_TYPE_MATRIX_B = 2,
        NV_META_COMMAND_RESOURCE_TYPE_MATRIX_C = 3,

        NV_META_COMMAND_RESOURCE_TYPE_PERSISTENT = 4,
        NV_META_COMMAND_RESOURCE_TYPE_TEMPORARY = 5,
    };

    // Extended version of convolution operation that performs:
    //
    // y = act ( alpha1 * conv(x) + alpha2 * z + bias )
    //
    // alpha1 and alpha2 are either scalars or if PerChannelScaling is TRUE, they are vectors of
    // same dimension as the bias tensor (vector of size equal to number of output channels)
    //
    // z (SkipConnectionResource) has same dimension as output tensor y (OutputResource).

    static const GUID MetaCommand_ConvolutionEx =
        {0xa7666f1e, 0x9c55, 0x47ee, {0x9e, 0xb3, 0xe1, 0x62, 0x0, 0x92, 0xd1, 0xe9}};

#define NV_META_COMMAND_NUM_SPATIAL_DIM 3

    // D, H, W when DimensionCount is 3
    // H, W when DimensionCount is 2

#if __cplusplus >= 201103L
    enum NV_META_COMMAND_CONVOLUTION_DIRECTION : NvU64
    {
        NV_META_COMMAND_CONVOLUTION_DIRECTION_FORWARD,  // Corresponds to regular Convolution
        NV_META_COMMAND_CONVOLUTION_DIRECTION_BACKWARD, // Corresponds to ConvolutionTranspose

        NV_META_COMMAND_CONVOLUTION_DIRECTION_COUNT,
    };

    enum NV_META_COMMAND_CONVOLUTION_MODE : NvU64
    {
        NV_META_COMMAND_CONVOLUTION_MODE_CONVOLUTION,
        NV_META_COMMAND_CONVOLUTION_MODE_CROSS_CORRELATION,

        NV_META_COMMAND_CONVOLUTION_MODE_COUNT,
    };

    struct NV_META_COMMAND_CREATE_CONVOLUTION_EX_DESC
    {
        // Descriptor of the input tensor
        NV_META_COMMAND_TENSOR_DESC DescIn;

        // Descriptor of the tensor acting as the filter kernel
        NV_META_COMMAND_TENSOR_DESC DescFilter;

        // Descriptor of the optional bias tensor
        NV_META_COMMAND_OPTIONAL_TENSOR_DESC DescBias;

        // Descriptor of the output tensor
        NV_META_COMMAND_TENSOR_DESC DescOut;

        // Convolution mode (CROSS_CORRELATION or CONVOLUTION)
        NV_META_COMMAND_CONVOLUTION_MODE Mode;

        // Convolution direction (FORWARD or BACKWARD)
        NV_META_COMMAND_CONVOLUTION_DIRECTION Direction;

        // Precision at which convolution is done
        NV_META_COMMAND_PRECISION Precision;

        // Optional activation function
        NV_META_COMMAND_OPTIONAL_ACTIVATION_DESC Activation;

        // Padding mode (only used when output tensor dimensions are different from input tensor dimensions)
        NV_META_COMMAND_PADDING_DESC Padding;

        // enables per channel scaling i.e, use Alpha1Resource and Alpha2Resource
        // instead of Alpha1 and Alpha2 below
        NV_META_COMMAND_BOOL PerChannelScaling;

        // scaling factors used when PerChannelScaling is FALSE
        // set Alpha1 = 1.0f, Alpha2 = 0.0f for simple convolutions
        // that don't need scaling or skip connection
        float Alpha1;
        float Alpha2;

        // Strides for the filter kernel position
        NvU64 Stride[NV_META_COMMAND_NUM_SPATIAL_DIM];

        // The distance per dimension between elements that are multiplied
        NvU64 Dilation[NV_META_COMMAND_NUM_SPATIAL_DIM];

        // Padding at the start of each dimension
        NvU64 StartPadding[NV_META_COMMAND_NUM_SPATIAL_DIM];

        // Padding at the end of each dimension
        NvU64 EndPadding[NV_META_COMMAND_NUM_SPATIAL_DIM];

        // Number of dimensions to which convolution occurs (2 or 3)
        NvU64 DimensionCount;

        // Number of channel groups convolved independently
        NvU64 GroupCount;
    };

#else

    enum NV_META_COMMAND_CONVOLUTION_DIRECTION
    {
        NV_META_COMMAND_CONVOLUTION_DIRECTION_FORWARD,  // Corresponds to regular Convolution
        NV_META_COMMAND_CONVOLUTION_DIRECTION_BACKWARD, // Corresponds to ConvolutionTranspose

        NV_META_COMMAND_CONVOLUTION_DIRECTION_COUNT,
    };

    enum NV_META_COMMAND_CONVOLUTION_MODE
    {
        NV_META_COMMAND_CONVOLUTION_MODE_CONVOLUTION,
        NV_META_COMMAND_CONVOLUTION_MODE_CROSS_CORRELATION,

        NV_META_COMMAND_CONVOLUTION_MODE_COUNT,
    };

    struct NV_META_COMMAND_CREATE_CONVOLUTION_EX_DESC
    {
        // Descriptor of the input tensor
        NV_META_COMMAND_TENSOR_DESC DescIn;

        // Descriptor of the tensor acting as the filter kernel
        NV_META_COMMAND_TENSOR_DESC DescFilter;

        // Descriptor of the optional bias tensor
        NV_META_COMMAND_OPTIONAL_TENSOR_DESC DescBias;

        // Descriptor of the output tensor
        NV_META_COMMAND_TENSOR_DESC DescOut;

        // Convolution mode (CROSS_CORRELATION or CONVOLUTION)
        NvU64 Mode; // NV_META_COMMAND_CONVOLUTION_MODE

        // Convolution direction (FORWARD or BACKWARD)
        NvU64 Direction; // NV_META_COMMAND_CONVOLUTION_DIRECTION

        // Precision at which convolution is done
        NvU64 Precision; // NV_META_COMMAND_PRECISION

        // Optional activation function
        NV_META_COMMAND_OPTIONAL_ACTIVATION_DESC Activation;

        // Padding mode (only used when output tensor dimensions are different from input tensor dimensions)
        NV_META_COMMAND_PADDING_DESC Padding;

        // enables per channel scaling i.e, use Alpha1Resource and Alpha2Resource
        // instead of Alpha1 and Alpha2 below
        NV_META_COMMAND_BOOL PerChannelScaling;

        // scaling factors used when PerChannelScaling is FALSE
        // set Alpha1 = 1.0f, Alpha2 = 0.0f for simple convolutions
        // that don't need scaling or skip connection
        float Alpha1;
        float Alpha2;

        // Strides for the filter kernel position
        NvU64 Stride[NV_META_COMMAND_NUM_SPATIAL_DIM];

        // The distance per dimension between elements that are multiplied
        NvU64 Dilation[NV_META_COMMAND_NUM_SPATIAL_DIM];

        // Padding at the start of each dimension
        NvU64 StartPadding[NV_META_COMMAND_NUM_SPATIAL_DIM];

        // Padding at the end of each dimension
        NvU64 EndPadding[NV_META_COMMAND_NUM_SPATIAL_DIM];

        // Number of dimensions to which convolution occurs (2 or 3)
        NvU64 DimensionCount;

        // Number of channel groups convolved independently
        NvU64 GroupCount;
    };
#endif

    // Fused Convolution variants

    // supported combinations right now are:
    //  - Convolution + Max Pooling (also optionally outputs pre-pool data)
    //  - 2x2 upsample + (optional) residual add + Convolution
    //
    // other combinations may be exposed in future

    static const GUID MetaCommand_ConvolutionExFused =
        {0xe1b112eb, 0xdecd, 0x4ff6, {0x85, 0xbb, 0x1f, 0xe, 0x3a, 0xb0, 0x4, 0x14}};

    enum NV_META_COMMAND_CONVOLUTION_POOL_MODE
    {
        NV_META_COMMAND_CONVOLUTION_POOL_MODE_NONE,
        NV_META_COMMAND_CONVOLUTION_POOL_MODE_REDUCTION_MAX,
        NV_META_COMMAND_CONVOLUTION_POOL_MODE_REDUCTION_AVG,
        NV_META_COMMAND_CONVOLUTION_POOL_MODE_REDUCTION_MIN,

        NV_META_COMMAND_CONVOLUTION_POOL_MODE_COUNT,
    };

    enum NV_META_COMMAND_CONVOLUTION_UPSAMPLE_MODE
    {
        NV_META_COMMAND_CONVOLUTION_UPSAMPLE_MODE_NONE,
        NV_META_COMMAND_CONVOLUTION_UPSAMPLE_MODE_REPLICATE,
        NV_META_COMMAND_CONVOLUTION_UPSAMPLE_MODE_BILINEAR,

        NV_META_COMMAND_CONVOLUTION_UPSAMPLE_MODE_COUNT,
    };

    enum NV_META_COMMAND_CONVOLUTION_SKIP_MODE
    {
        NV_META_COMMAND_CONVOLUTION_SKIP_MODE_NONE,
        NV_META_COMMAND_CONVOLUTION_SKIP_MODE_ADD,
        NV_META_COMMAND_CONVOLUTION_SKIP_MODE_CONCAT,

        NV_META_COMMAND_CONVOLUTION_SKIP_MODE_COUNT,
    };

    struct NV_META_COMMAND_CONVOLUTION_FUSE_DESC
    {
        NV_META_COMMAND_CONVOLUTION_POOL_MODE PoolMode;
        NV_META_COMMAND_CONVOLUTION_UPSAMPLE_MODE UpsampleMode;
        NV_META_COMMAND_CONVOLUTION_SKIP_MODE SkipMode;

        NV_META_COMMAND_BOOL OutputPrepool; // used with NV_META_COMMAND_CONVOLUTION_POOL_MODE
    };

    // uses same structures for init and execute descriptors
    // SkipConnectionResource is used to specify the resource for pre-pool data or residual add
    struct NV_META_COMMAND_CREATE_CONVOLUTION_EX_FUSED_DESC : NV_META_COMMAND_CREATE_CONVOLUTION_EX_DESC
    {
        NV_META_COMMAND_CONVOLUTION_FUSE_DESC FuseDesc;
    };

    // make sure structure sizes match what the driver assumes
    compile_time_assert(sizeof(NV_META_COMMAND_TENSOR_DESC) == 112);
    compile_time_assert(sizeof(NV_META_COMMAND_CREATE_CONVOLUTION_EX_DESC) == 640);
    compile_time_assert(sizeof(NV_META_COMMAND_CONVOLUTION_FUSE_DESC) == 20);
    compile_time_assert(sizeof(NV_META_COMMAND_CREATE_CONVOLUTION_EX_FUSED_DESC) == 660);

    // GEMM (General matrix multiply)
    //
    // Y = alpha * t(A) * t(B) + beta * C,
    //
    // where t is a matrix transform option
    //
    // If C is null, and beta is non-zero, the output
    // matrix is used as C matrix. i.e, the operation performed is:
    // Y = alpha * t(A) * t(B) + beta * Y
    //
    static const GUID MetaCommand_Gemm =
        {0x8f9ff059, 0xfe72, 0x488e, {0xa0, 0x66, 0xb1, 0x4e, 0x79, 0x48, 0xec, 0x8}};

#if __cplusplus >= 201103L

    enum NV_META_COMMAND_MATRIX_TRANSFORM : NvU64
    {
        NV_META_COMMAND_MATRIX_TRANSFORM_NONE,
        NV_META_COMMAND_MATRIX_TRANSFORM_TRANSPOSE,

        NV_META_COMMAND_MATRIX_TRANSFORM_COUNT,
    };

    struct NV_META_COMMAND_CREATE_GEMM_DESC
    {
        NV_META_COMMAND_TENSOR_DESC DescA;
        NV_META_COMMAND_TENSOR_DESC DescB;
        NV_META_COMMAND_OPTIONAL_TENSOR_DESC DescC;
        NV_META_COMMAND_TENSOR_DESC DescOut;
        NV_META_COMMAND_PRECISION Precision;

        NV_META_COMMAND_MATRIX_TRANSFORM TransA;
        NV_META_COMMAND_MATRIX_TRANSFORM TransB;
        float Alpha;
        float Beta;

        NV_META_COMMAND_OPTIONAL_ACTIVATION_DESC Activation;
    };

#else

    enum NV_META_COMMAND_MATRIX_TRANSFORM
    {
        NV_META_COMMAND_MATRIX_TRANSFORM_NONE,
        NV_META_COMMAND_MATRIX_TRANSFORM_TRANSPOSE,

        NV_META_COMMAND_MATRIX_TRANSFORM_COUNT,
    };

    struct NV_META_COMMAND_CREATE_GEMM_DESC
    {
        NV_META_COMMAND_TENSOR_DESC DescA;
        NV_META_COMMAND_TENSOR_DESC DescB;
        NV_META_COMMAND_OPTIONAL_TENSOR_DESC DescC;
        NV_META_COMMAND_TENSOR_DESC DescOut;
        NvU64 Precision; // NV_META_COMMAND_PRECISION

        NvU64 TransA; // NV_META_COMMAND_MATRIX_TRANSFORM
        NvU64 TransB; // NV_META_COMMAND_MATRIX_TRANSFORM
        float Alpha;
        float Beta;

        NV_META_COMMAND_OPTIONAL_ACTIVATION_DESC Activation;
    };

#endif

#pragma pack(pop)

#endif // #if defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))

#if defined(__cplusplus) && defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_EnumerateMetaCommands
    //
    //! \since Release: 400
    //
    //! \code
    //!   DESCRIPTION: Enumerates MetaCommands supported on the system
    //!
    //!         \param [in]        pDevice                A pointer to D3D11 device.
    //!         \param [in/out]    pNumMetaCommands       Should be non-null. When the value pointed by pNumMetaCommands is 0 (or when pDescs is NULL), the function returns number of metacommands supported.
    //!                                                   When the value pointed is non-zero, the value indicates number of Metacommand descriptions to be populated in pDescs array.
    //!         \param [out]       pDescs                 Pointer to array where Metacommand descriptions will be returned. Can be null to indicate that the app is querying the number of supported metacommands.
    //!                                                   Otherwise should have enough space to hold *pNumMetaCommands descriptors
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_EnumerateMetaCommands(__in ID3D11Device *pDevice,
                                                      __inout NvU32 *pNumMetaCommands,
                                                      __out_ecount_opt(*pNumMetaCommands) NVAPI_META_COMMAND_DESC *pDescs);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

#if defined(__cplusplus) && defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateMetaCommand
    //
    //! \since Release: 400
    //
    //! \code
    //!   DESCRIPTION: Creates a MetaCommand object which can be used to execute optimized operations exposed by driver like convolutions.
    //!
    //!         \param [in]        pDevice                      A pointer to D3D11 device.
    //!         \param [in]        CommandId                    GUID of the operations to perform
    //!         \param [in]        pCreationParametersData      structure containing all creation parameters for the requested Metacommand
    //!         \param [in]        CreationParametersDataSize   size of parameter data structure
    //!         \param [out]       ppMetaCommand                A pointer to memory that receives the pointer to the created MetaCommand object.
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //!          NVAPI_NOT_SUPPORTED  - The requested Metacommand is not supported.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

#pragma pack(push, 4)
    struct NV_D3D11_META_COMMAND_RESOURCE
    {
        union
        {
            NVDX_ObjectHandle ResourceHandle; // NVAPI handle of a buffer resource (use NvAPI_D3D11_GetResourceHandle to get this handle)
            NvU64 unused;                     // to get correct sturcutre size on 32 bit builds
        };
        NvU64 Offset; // offset within the resource in bytes
    };

    struct NV_D3D11_META_COMMAND_INITIALIZE_CONVOLUTION_EX_DESC
    {
        // Persistent resource used as scratch space by driver
        // it's written at time of init, and read at time of execute
        // use GetRequiredParameterResourceSize to query its size
        NV_D3D11_META_COMMAND_RESOURCE PersistentResource;
    };

    struct NV_D3D11_META_COMMAND_EXECUTE_CONVOLUTION_EX_DESC
    {
        NV_D3D11_META_COMMAND_RESOURCE InputResource;
        NV_D3D11_META_COMMAND_RESOURCE FilterResource;
        NV_D3D11_META_COMMAND_RESOURCE BiasResource; // optional
        NV_D3D11_META_COMMAND_RESOURCE OutputResource;

        // Alpha1Resource and Alpha2Resource are used only when
        // PerChannelScaling is set. Otherwise the scalars Alpha1/Alpha2 are used
        // should have same dimension as bias
        NV_D3D11_META_COMMAND_RESOURCE Alpha1Resource;
        NV_D3D11_META_COMMAND_RESOURCE Alpha2Resource;

        // optional, same dimension/descriptor as output
        NV_D3D11_META_COMMAND_RESOURCE SkipConnectionResource;

        // should point to same memory that was specified at time of init
        NV_D3D11_META_COMMAND_RESOURCE PersistentResource;

        // temporary resource used as scratch space by driver
        // used for both read and write at the time of execute
        // use GetRequiredParameterResourceSize to query its size
        NV_D3D11_META_COMMAND_RESOURCE TemporaryResource;
    };

    // make sure structure sizes match what the driver assumes
    compile_time_assert(sizeof(NV_D3D11_META_COMMAND_INITIALIZE_CONVOLUTION_EX_DESC) == 16);
    compile_time_assert(sizeof(NV_D3D11_META_COMMAND_EXECUTE_CONVOLUTION_EX_DESC) == 144);

    struct NV_D3D11_META_COMMAND_INITIALIZE_GEMM_DESC
    {
        NV_D3D11_META_COMMAND_RESOURCE PersistentResource;
    };

    struct NV_D3D11_META_COMMAND_EXECUTE_GEMM_DESC
    {
        NV_D3D11_META_COMMAND_RESOURCE AResource;
        NV_D3D11_META_COMMAND_RESOURCE BResource;
        NV_D3D11_META_COMMAND_RESOURCE CResource;
        NV_D3D11_META_COMMAND_RESOURCE OutputResource;

        NV_D3D11_META_COMMAND_RESOURCE PersistentResource;
        NV_D3D11_META_COMMAND_RESOURCE TemporaryResource;
    };

    // make sure structure sizes match what the driver assumes
    compile_time_assert(sizeof(NV_D3D11_META_COMMAND_INITIALIZE_GEMM_DESC) == 16);
    compile_time_assert(sizeof(NV_D3D11_META_COMMAND_EXECUTE_GEMM_DESC) == 96);

#pragma pack(pop)

    DECLARE_INTERFACE_(__declspec(uuid("00BF193A-117B-42BC-BBCD-E964A0EA4F2B")) ID3D11NvMetaCommand_V1, IUnknown)
    {
        BEGIN_INTERFACE

        // *** IUnknown methods ***
        STDMETHOD(QueryInterface)
        (THIS_ REFIID riid, void **ppv) PURE;
        STDMETHOD_(ULONG, AddRef)
        (THIS) PURE;
        STDMETHOD_(ULONG, Release)
        (THIS) PURE;

        // ** ID3D11NvMetaCommand methods ***
        // Return size of parameter
        STDMETHOD(GetRequiredParameterResourceSize)
        (THIS_ NV_META_COMMAND_RESOURCE_TYPE ResourceType, NvU64 * SizeInBytes) const PURE;

        END_INTERFACE
    };

    typedef ID3D11NvMetaCommand_V1 ID3D11NvMetaCommand;
#define ID3D11NvMetaCommand_VER1 MAKE_NVAPI_VERSION(IID3D11NvMetaCommand_V1, 1)

#define ID3D11NvMetaCommand_VER ID3D11NvMetaCommand_VER1


    NVAPI_INTERFACE NvAPI_D3D11_CreateMetaCommand(__in ID3D11Device *pDevice,
                                                  __in REFGUID CommandId,
                                                  __in_bcount(CreationParametersDataSize) const void *pCreationParametersData,
                                                  __in NvU32 CreationParametersDataSize,
                                                  __out ID3D11NvMetaCommand **ppMetaCommand);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

#if defined(__cplusplus) && defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_InitializeMetaCommand
    //
    //! \since Release: 400
    //
    //! \code
    //!   DESCRIPTION: Initializes the given MetaCommand with the parameters passed in
    //!
    //!         \param [in]        pDeviceContext                   A pointer to the d3d11 device context
    //!         \param [in]        pMetaCommand                     the MetaCommand to initialize
    //!         \param [in]        pInitializationParametersData    Structure containing parameters
    //!         \param [in]        InitializationParametersDataSize Size of the parameter structure in bytes
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_InitializeMetaCommand(__in ID3D11DeviceContext *pDeviceContext,
                                                      __in ID3D11NvMetaCommand *pMetaCommand,
                                                      __in_bcount(InitializationParametersDataSize) const void *pInitializationParametersData,
                                                      __in NvU32 InitializationParametersDataSize);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

#if defined(__cplusplus) && defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_ExecuteMetaCommand
    //
    //! \since Release: 400
    //
    //! \code
    //!   DESCRIPTION: Executes the given MetaCommand with the parameters passed in
    //!
    //!         \param [in]        pDeviceContext                   A pointer to the d3d11 device context
    //!         \param [in]        pMetaCommand                     the MetaCommand to execute
    //!         \param [in]        pExecutionParametersData         Structure containing parameters
    //!         \param [in]        ExecutionParametersDataSize      Size of the parameter structure in bytes
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_ExecuteMetaCommand(__in ID3D11DeviceContext *pDeviceContext,
                                                   __in ID3D11NvMetaCommand *pMetaCommand,
                                                   __in_bcount(ExecutionParametersDataSize) const void *pExecutionParametersData,
                                                   __in NvU32 ExecutionParametersDataSize);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_EnumerateMetaCommands
    //
    //! \since Release: 400
    //
    //! \code
    //!   DESCRIPTION: Enumerates MetaCommands supported on the system
    //!
    //!         \param [in]        pDevice                A pointer to D3D12 device.
    //!         \param [in/out]    pNumMetaCommands       Should be non-null. When the value pointed by pNumMetaCommands is 0 or when pDescs is NULL, the function returns number of metacommands supported.
    //!                                                   When the value pointed is non-zero, the value indicates number of Metacommand descriptions to be populated in pDescs array.
    //!         \param [out]       pDescs                 Pointer to array where Metacommand descriptions will be returned. Can be null to indicate that the app is querying the number of supported metacommands.
    //!                                                   Otherwise should have enough space to hold *pNumMetaCommands descriptors
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_EnumerateMetaCommands(__in ID3D12Device *pDevice,
                                                      __inout NvU32 *pNumMetaCommands,
                                                      __out_ecount_opt(*pNumMetaCommands) NVAPI_META_COMMAND_DESC *pDescs);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateMetaCommand
    //
    //! \since Release: 400
    //
    //! \code
    //!   DESCRIPTION: Creates a MetaCommand object which can be used to execute optimized operations exposed by driver like convolutions.
    //!
    //!         \param [in]        pDevice                      A pointer to D3D12 device.
    //!         \param [in]        CommandId                    GUID of the operations to perform
    //!         \param [in]        NodeMask                     GPU mask for which metacommand is to be created. Set it to 0 for single GPU systems
    //!         \param [in]        pCreationParametersData      structure containing all creation parameters for the requested Metacommand
    //!         \param [in]        CreationParametersDataSize   size of parameter data structure
    //!         \param [out]       ppMetaCommand                A pointer to memory that receives the pointer to the created MetaCommand object.
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //!          NVAPI_NOT_SUPPORTED  - The requested Metacommand is not supported.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

#pragma pack(push, 4)
    struct NV_D3D12_META_COMMAND_INITIALIZE_CONVOLUTION_EX_DESC
    {
        // Persistent resource used as scratch space by driver
        // it's written at time of init, and read at time of execute
        // use GetRequiredParameterResourceSize to query its size
        D3D12_GPU_VIRTUAL_ADDRESS PersistentResource;
    };

    struct NV_D3D12_META_COMMAND_EXECUTE_CONVOLUTION_EX_DESC
    {
        D3D12_GPU_VIRTUAL_ADDRESS InputResource;
        D3D12_GPU_VIRTUAL_ADDRESS FilterResource;
        D3D12_GPU_VIRTUAL_ADDRESS BiasResource; // optional
        D3D12_GPU_VIRTUAL_ADDRESS OutputResource;

        // Alpha1Resource and Alpha2Resource are used only when
        // PerChannelScaling is set. Otherwise the scalars Alpha1/Alpha2 are used
        // should have same dimension as bias
        D3D12_GPU_VIRTUAL_ADDRESS Alpha1Resource;
        D3D12_GPU_VIRTUAL_ADDRESS Alpha2Resource;

        // optional, same dimension/descriptor as output
        D3D12_GPU_VIRTUAL_ADDRESS SkipConnectionResource;

        // should point to same memory that was specified at time of init
        D3D12_GPU_VIRTUAL_ADDRESS PersistentResource;

        // temporary resource used as scratch space by driver
        // both written and read at time of execute
        // use GetRequiredParameterResourceSize to query its size
        D3D12_GPU_VIRTUAL_ADDRESS TemporaryResource;
    };

    // make sure structure sizes match what the driver assumes
    compile_time_assert(sizeof(NV_D3D12_META_COMMAND_INITIALIZE_CONVOLUTION_EX_DESC) == 8);
    compile_time_assert(sizeof(NV_D3D12_META_COMMAND_EXECUTE_CONVOLUTION_EX_DESC) == 72);

    struct NV_D3D12_META_COMMAND_INITIALIZE_GEMM_DESC
    {
        NvU64 PersistentResource;
    };

    struct NV_D3D12_META_COMMAND_EXECUTE_GEMM_DESC
    {
        NvU64 AResource;
        NvU64 BResource;
        NvU64 CResource;
        NvU64 OutputResource;

        NvU64 PersistentResource;
        NvU64 TemporaryResource;
    };

    // make sure structure sizes match what the driver assumes
    compile_time_assert(sizeof(NV_D3D12_META_COMMAND_INITIALIZE_GEMM_DESC) == 8);
    compile_time_assert(sizeof(NV_D3D12_META_COMMAND_EXECUTE_GEMM_DESC) == 48);

#pragma pack(pop)

    DECLARE_INTERFACE_(__declspec(uuid("00BF193A-117B-42BC-BBCD-E964A0EA4F2B")) ID3D12NvMetaCommand_V1, IUnknown)
    {
        BEGIN_INTERFACE

        // *** IUnknown methods ***
        STDMETHOD(QueryInterface)
        (THIS_ REFIID riid, void **ppv) PURE;
        STDMETHOD_(ULONG, AddRef)
        (THIS) PURE;
        STDMETHOD_(ULONG, Release)
        (THIS) PURE;

        // ** ID3D12NvMetaCommand methods ***
        // Return size of parameter
        STDMETHOD(GetRequiredParameterResourceSize)
        (THIS_ NV_META_COMMAND_RESOURCE_TYPE ResourceType, NvU64 * SizeInBytes) const PURE;

        END_INTERFACE
    };

    typedef ID3D12NvMetaCommand_V1 ID3D12NvMetaCommand;
#define ID3D12NvMetaCommand_VER1 MAKE_NVAPI_VERSION(IID3D12NvMetaCommand_V1, 1)

#define ID3D12NvMetaCommand_VER ID3D12NvMetaCommand_VER1


    NVAPI_INTERFACE NvAPI_D3D12_CreateMetaCommand(__in ID3D12Device *pDevice,
                                                  __in REFGUID CommandId,
                                                  __in NvU32 NodeMask,
                                                  __in_bcount(CreationParametersDataSize) const void *pCreationParametersData,
                                                  __in NvU32 CreationParametersDataSize,
                                                  __out ID3D12NvMetaCommand **ppMetaCommand);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_InitializeMetaCommand
    //
    //! \since Release: 400
    //
    //! \code
    //!   DESCRIPTION: Initializes the given MetaCommand with the parameters passed in
    //!
    //!         \param [in]        pCommandList                     A pointer to D3D12 command list.
    //!         \param [in]        pMetaCommand                     the MetaCommand to initialize
    //!         \param [in]        pInitializationParametersData    Structure containing parameters
    //!         \param [in]        InitializationParametersDataSize Size of the parameter structure in bytes
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_InitializeMetaCommand(__in ID3D12GraphicsCommandList *pCommandlist,
                                                      __in ID3D12NvMetaCommand *pMetaCommand,
                                                      __in_bcount(InitializationParametersDataSize) const void *pInitializationParametersData,
                                                      __in NvU32 InitializationParametersDataSize);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_ExecuteMetaCommand
    //
    //! \since Release: 400
    //
    //! \code
    //!   DESCRIPTION: Executes the given MetaCommand with the parameters passed in
    //!
    //!         \param [in]        pCommandList                     A pointer to D3D12 command list.
    //!         \param [in]        pMetaCommand                     the MetaCommand to execute
    //!         \param [in]        pExecutionParametersData         Structure containing parameters
    //!         \param [in]        ExecutionParametersDataSize      Size of the parameter structure in bytes
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_ExecuteMetaCommand(__in ID3D12GraphicsCommandList *pCommandlist,
                                                   __in ID3D12NvMetaCommand *pMetaCommand,
                                                   __in_bcount(ExecutionParametersDataSize) const void *pExecutionParametersData,
                                                   __in NvU32 ExecutionParametersDataSize);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CreateCommittedResource
    //
    //! \since Release: 384
    //
    //! \code
    //!   DESCRIPTION: Wrapper around ID3D12Device::CreateCommittedResource to allow creation of resources according to params provided.
    //!                HTEX resource is created when NV_D3D12_RESOURCE_FLAG_HTEX is set in the nvResourceFlags parameter.
    //!                NV_D3D12_RESOURCE_FLAG_CPUVISIBLE_VIDMEM gives driver hint to create the resource on cpu visible vidmem
    //!                only upload resources use this flag currently, others behave exactly as ID3D12Device::CreateCommittedResource
    //!                Otherwise the function behaves exactly same as regular ID3D12Device::CreateCommittedResource.
    //!                When NV_D3D12_RESOURCE_FLAG_HTEX is set, the texels are centered on integer coordinates and filtering
    //!                and LOD are calculated based on the size minus one, which then allows the edges to filter to the exact texels on the edge,
    //!                eliminating the border/edge filtering issue. Dimension of next mip level is CEIL(currentMipDimension/2), and size of smallest mip is 2x2.
    //!                Note that NV_D3D12_RESOURCE_FLAG_HTEX can't be used for shared resources.
    //!                Best practice: Query available space in cpu visible vidmem using NvAPI_D3D12_QueryCpuVisibleVidmem
    //!                before using NV_D3D12_RESOURCE_FLAG_CPUVISIBLE_VIDMEM
    //!
    //!         \param [in]        pDevice                A pointer to D3D12 device.
    //!         \param [in]        pHeapProperties        A pointer to a D3D12_HEAP_PROPERTIES structure that provides properties for the resource's heap.
    //!         \param [in]        HeapFlags              Heap options, as a bitwise-OR'd combination of D3D12_HEAP_FLAGS enumeration constants.
    //!         \param [in]        pDesc                  A pointer to a D3D12_RESOURCE_DESC structure that describes the resource.
    //!         \param [in]        InitialState           The initial state of the resource, as a bitwise-OR'd combination of D3D12_RESOURCE_STATES enumeration constants.
    //!         \param [in]        pOptimizedClearValue   Specifies a D3D12_CLEAR_VALUE that describes the default value for a clear color.
    //!         \param [in]        pNVResourceParams      A pointer to a structure containing additional NV specific resource creation information (see NV_D3D12_RESOURCE_FLAGS below for more info on flags)
    //!         \param [in]        riid                   The globally unique identifier (GUID) for the resource interface.
    //!         \param [out]       ppvResource            A pointer to memory that receives the requested interface pointer to the created resource object.
    //!                                                   ppvResource can be NULL, to enable capability testing. When ppvResource is NULL, no object will be created and pSupported
    //!                                                   will be set to true when pResourceDesc is valid.
    //!         \param [out]       pSupported             optional, needed only for capability testing when ppvResource is NULL
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    typedef enum
    {
        NV_D3D12_RESOURCE_FLAG_NONE = 0,
        NV_D3D12_RESOURCE_FLAG_HTEX = 1,              //!< Create HTEX texture
        NV_D3D12_RESOURCE_FLAG_CPUVISIBLE_VIDMEM = 2, //!< Hint to create resource in cpuvisible vidmem
    } NV_D3D12_RESOURCE_FLAGS;

    typedef struct _NV_RESOURCE_PARAMS_V1
    {
        NvU32 version;                           //!< Version of structure. Must always be first member
        NV_D3D12_RESOURCE_FLAGS NVResourceFlags; //!< Additional NV specific flags (set the NV_D3D12_RESOURCE_FLAG_HTEX bit to create HTEX texture)
    } NV_RESOURCE_PARAMS_V1;

#define NV_RESOURCE_PARAMS_VER_1 MAKE_NVAPI_VERSION(NV_RESOURCE_PARAMS_V1, 1)


#define NV_RESOURCE_PARAMS_VER NV_RESOURCE_PARAMS_VER_1

    typedef NV_RESOURCE_PARAMS_V1 NV_RESOURCE_PARAMS;

    NVAPI_INTERFACE NvAPI_D3D12_CreateCommittedResource(__in ID3D12Device *pDevice,
                                                        __in const D3D12_HEAP_PROPERTIES *pHeapProperties,
                                                        __in D3D12_HEAP_FLAGS HeapFlags,
                                                        __in const D3D12_RESOURCE_DESC *pDesc,
                                                        __in D3D12_RESOURCE_STATES InitialState,
                                                        __in const D3D12_CLEAR_VALUE *pOptimizedClearValue,
                                                        __in const NV_RESOURCE_PARAMS *pNVResourceParams,
                                                        __in REFIID riid,
                                                        __out_opt void **ppvResource,
                                                        __out_opt bool *pSupported);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_GetCopyableFootprints
    //
    //! \since Release: 384
    //
    //! \code
    //!   DESCRIPTION: Wrapper around ID3D12Device::GetCopyableFootprints for getting correct staging resource footprint for HTEX resources
    //!                created using NvAPI_D3D12_CreateCommittedResource / NvAPI_D3D12_CreatePlacedResource with NV_D3D12_RESOURCE_FLAG_HTEX flag
    //!
    //!         \param [in]        pDevice                A pointer to D3D12 device.
    //!         \param [in]        pResourceDesc          A description of the resource, as a pointer to a D3D12_RESOURCE_DESC structure.
    //!         \param [in]        pNVResourceParams      A pointer to a structure containing additional NV specific resource information
    //!         \param [in]        FirstSubresource       Index of the first subresource in the resource. The range of valid values is 0 to D3D12_REQ_SUBRESOURCES
    //!         \param [in]        NumSubresources        The number of subresources in the resource. The range of valid values is 0 to (D3D12_REQ_SUBRESOURCES - FirstSubresource).
    //!         \param [in]        BaseOffset             The offset, in bytes, to the resource.
    //!         \param [out]       pLayouts               A pointer to an array (of length NumSubresources) of D3D12_PLACED_SUBRESOURCE_FOOTPRINT structures, to be filled with the
    //!                                                   description and placement of each subresource.
    //!         \param [out]       pRowSizeInBytes        A pointer to an array (of length NumSubresources) of integer variables, each entry to be
    //!                                                   filled with the unpadded size in bytes of a row, of each subresource.
    //!         \param [out]       pTotalBytes            A pointer to an integer variable, to be filled with the total size, in bytes.
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_GetCopyableFootprints(__in ID3D12Device *pDevice,
                                                      __in const D3D12_RESOURCE_DESC *pResourceDesc,
                                                      __in const NV_RESOURCE_PARAMS *pNVResourceParams,
                                                      __in UINT FirstSubresource,
                                                      __in UINT NumSubresources,
                                                      __in UINT64 BaseOffset,
                                                      __out_ecount_opt(NumSubresources) D3D12_PLACED_SUBRESOURCE_FOOTPRINT *pLayouts,
                                                      __out_ecount_opt(NumSubresources) UINT *pNumRows,
                                                      __out_ecount_opt(NumSubresources) UINT64 *pRowSizeInBytes,
                                                      __out_opt UINT64 *pTotalBytes);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_CopyTextureRegion
    //
    //! \since Release: 384
    //
    //! \code
    //!   DESCRIPTION: Wrapper around ID3D12GraphicsCommandList::CopyTextureRegion for allowing copying to/from HTEX resources
    //!                created using NvAPI_D3D12_CreatePlacedResource with NV_D3D12_RESOURCE_FLAG_HTEX flag.
    //!
    //!         \param [in]        pCommandList           A pointer to D3D12 graphics command list.
    //!         \param [in]        pDst                   Specifies the destination D3D12_TEXTURE_COPY_LOCATION. The subresource referred to must be in the D3D12_RESOURCE_STATE_COPY_DEST state.
    //!         \param [in]        DstX                   The x-coordinate of the upper left corner of the destination region.
    //!         \param [in]        DstY                   The y-coordinate of the upper left corner of the destination region.
    //!         \param [in]        DstZ                   The z-coordinate of the upper left corner of the destination region.
    //!         \param [in]        pSrc                   Specifies the source D3D12_TEXTURE_COPY_LOCATION. The subresource referred to must be in the D3D12_RESOURCE_STATE_COPY_SOURCE state.
    //!         \param [in]        pSrcBox                Specifies an optional D3D12_BOX that sets the size of the source texture to copy.
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_CopyTextureRegion(__in ID3D12GraphicsCommandList *pCommandList,
                                                  __in const D3D12_TEXTURE_COPY_LOCATION *pDst,
                                                  __in UINT DstX,
                                                  __in UINT DstY,
                                                  __in UINT DstZ,
                                                  __in const D3D12_TEXTURE_COPY_LOCATION *pSrc,
                                                  __in_opt const D3D12_BOX *pSrcBox);

#endif // defined(__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_IsNvShaderExtnOpCodeSupported
    //
    //!   DESCRIPTION: This function checks if a nv HLSL shader extension opcode is
    //!                supported on current hardware. List of opcodes is in nvShaderExtnEnums.h
    //!                To use Nvidia HLSL extensions the application must include nvHLSLExtns.h
    //!                in the hlsl shader code. See nvHLSLExtns.h for more details on supported opcodes.
    //!
    //! \since Release: 364
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //! \param [in]        pDev         The device on which to query for support
    //! \param [in]        opCode       the opcode to check
    //! \param [out]       pSupported   true if supported, false otherwise
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //! \retval ::         NVAPI_OK if the call succeeded
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_IsNvShaderExtnOpCodeSupported(__in ID3D12Device *pDevice,
                                                              __in NvU32 opCode,
                                                              __out bool *pSupported);

#endif // defined (__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_GetOptimalThreadCountForMesh
    //
    //!   DESCRIPTION: This function returns optimal thread count for mesh and task aka amplification shaders if Meshlets supported
    //!                Otherwise returns 0.
    //!
    //!
    //! \since Release: 510
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //!
    //! \param [in]        pDevice       The device on which to query thread count
    //! \param [out]       pThreadCount  optimal thread count if Meshlets supported, 0 otherwise
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //! \retval ::         NVAPI_OK if the call succeeded
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D12_GetOptimalThreadCountForMesh(__in ID3D12Device *pDevice,
                                                             __out NvU32 *pThreadCount);

#endif // defined (__cplusplus) && defined(__d3d12_h__)

#if defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d11_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_D3D_IsGSyncCapable
    //!   DESCRIPTION: This API gets G-Sync capability for the given device context.
    //!                This is only reliable after the first present call has completed.
    //! \param [in]    pDeviceOrContext    The D3D9, D3D10, D3D11 device, or D3D11 device context
    //! \param [in]    NVDX_ObjectHandle   The handle of primary surface
    //! \param [out]   pIsGsyncCapable     if G-Sync can be enabled, *pIsGsyncCapable is true.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! RETURN STATUS: This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_IsGSyncCapable(__in IUnknown *pDeviceOrContext, __in NVDX_ObjectHandle primarySurface, __out BOOL *pIsGsyncCapable);
#endif // if defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d11_h__)

#if defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d11_h__)

    ///////////////////////////////////////////////////////////////////////////////
    //!
    //! FUNCTION NAME: NvAPI_D3D_IsGSyncActive
    //!   DESCRIPTION: This API get the G-Sync state for the given device context.
    //!                This is only reliable after the first present call has completed.
    //!                As it is a bit time consuming, It should not be called per frame.
    //! \param [in]    pDeviceOrContext    The D3D9, D3D10, D3D11 device, or D3D11 device context
    //! \param [in]    NVDX_ObjectHandle   The handle of primary surface
    //! \param [out]   pIsGsyncActive      if G-Sync is active, *pisGsyncActive is true.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! RETURN STATUS: This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_IsGSyncActive(__in IUnknown *pDeviceOrContext, __in NVDX_ObjectHandle primarySurface, __out BOOL *pIsGsyncActive);
#endif // if defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d11_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && (defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_DisableShaderDiskCache
    //
    //! DESCRIPTION: Disables driver managed caching of shader compilations to disk
    //!
    //! \param [in]    pDevice               Device to disabled the shader disk cache on
    //!
    //!
    //! \retval ::NVAPI_OK                   Shader disk cache was disabled
    //! \retval ::NVAPI_ERROR                The operation failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT     Argument passed in is invalid.
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_DisableShaderDiskCache(IUnknown *pDevice);

#endif // defined (__cplusplus) && ( defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_MultiGPU_GetCaps
    //
    //! DESCRIPTION: Request to get multi GPU extension caps.
    //!
    //! \param [in/out]    pMultiGPUCaps     Pointer to a structure returning multi GPU caps
    //! \retval ::NVAPI_OK                   Call succeeded.
    //! \retval ::NVAPI_ERROR                Call failed.
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    //! \ingroup dx
    typedef struct _NV_MULTIGPU_CAPS_V1
    {
        NvU32 multiGPUVersion;
        NvU32 reserved;
        NvU32 nTotalGPUs;
        NvU32 nSLIGPUs;
        NvU32 videoBridgePresent;
    } NV_MULTIGPU_CAPS_V1, *PNV_MULTIGPU_CAPS_V1;

#endif // defined(__cplusplus) && defined(__d3d11_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)

    typedef struct _NV_MULTIGPU_CAPS_V2
    {
        NvU32 multiGPUVersion;
        union
        {
            NvU32 reserved;
            NvU32 version; //!< The version of the structure
        };
        NvU32 nTotalGPUs;
        NvU32 nSLIGPUs;
        NvU32 videoBridgePresent;
        NvU32 NvLinkPresent;
        NvU32 fastNvLinkReads;
    } NV_MULTIGPU_CAPS_V2, *PNV_MULTIGPU_CAPS_V2;

#define NV_MULTIGPU_CAPS_VER1 MAKE_NVAPI_VERSION(NV_MULTIGPU_CAPS_V1, 1)

#define NV_MULTIGPU_CAPS_VER2 MAKE_NVAPI_VERSION(NV_MULTIGPU_CAPS_V2, 2)


#define NV_MULTIGPU_CAPS_VER NV_MULTIGPU_CAPS_VER2

    typedef NV_MULTIGPU_CAPS_V2 NV_MULTIGPU_CAPS;
    typedef PNV_MULTIGPU_CAPS_V2 PNV_MULTIGPU_CAPS;

#endif // defined(__cplusplus) && defined(__d3d11_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)
    //! \ingroup dx

#ifndef NV_MULTIGPU_CAPS_VER
    typedef NV_MULTIGPU_CAPS_V1 NV_MULTIGPU_CAPS;
    typedef PNV_MULTIGPU_CAPS_V1 PNV_MULTIGPU_CAPS;
#endif

    NVAPI_INTERFACE NvAPI_D3D11_MultiGPU_GetCaps(__inout PNV_MULTIGPU_CAPS pMultiGPUCaps);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_MultiGPU_Init
    //
    //! DESCRIPTION: Request to enable/disable multi GPU extension. Also if enabled automatically disables auto stereo.
    //!
    //! \param [in]    bEnable               if true enables the extension for all subsequently created devices. Otherwise disables it
    //! \retval ::NVAPI_OK                   Call succeeded.
    //! \retval ::NVAPI_ERROR                Call failed.
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D11_MultiGPU_Init(__in bool bEnable);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateMultiGPUDevice
    //! \code
    //!   DESCRIPTION: This function returns ID3D11MultiGPUDevice used for multi GPU VR support
    //!
    //!         \param [in]        pDevice                  current d3d device
    //!         \param [in]        version                  version of requested ID3D11MultiGPUDevice.
    //!         \param [out]       currentVersion           pointer to returned current version of ID3D11MultiGPUDevice.
    //!         \param [out]       ppD3D11MultiGPUDevice    pointer to returned ID3D11MultiGPUDevice.
    //!         \param [in]        maxGpus                  max number of gpus this ID3D11MultiGPUDevice is allowed to use
    //!
    //!
    //! \return ::NVAPI_OK                          if the call succeeds.
    //!           NVAPI_INVALID_ARGUMENT            if NvAPI_D3D11_MultiGPU_Init() was not enabled prior to the creation of the D3D11 device,
    //!                                             or if maxGpus is greater than the number of GPUs in the SLI group.
    //!           NVAPI_NO_ACTIVE_SLI_TOPOLOGY      on single-GPU systems, or
    //!                                             if SLI has not been enabled in the NVIDIA control panel.
    //!           NVAPI_INVALID_CALL                if there is already an ID3D11MultiGPUDevice created for the specified ID3D11Device.
    //!           NVAPI_INCOMPATIBLE_STRUCT_VERSION if requested interface version is greater than the one that is supported by installed.
    //!                                             driver. In this case currentVersion will contain version supported by installed driver.
    //! \endcode
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup dx

#define NVAPI_COPY_ASYNCHRONOUSLY 1

#endif // defined(__cplusplus) && defined(__d3d11_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)
#define NVAPI_COPY_P2P_READ 2

#endif // defined(__cplusplus) && defined(__d3d11_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)

#define NVAPI_CPU_RESOURCE 0xffffffff


    DECLARE_INTERFACE(ID3D11MultiGPUDevice_V1)
    {
        //////////////////////////////   VER1 methods //////////////////////////////////////////
        STDMETHOD_(void, Destroy)
        (THIS) PURE;
        STDMETHOD_(UINT, SetGPUMask)
        (THIS_ __in UINT GPUMask) PURE;
        STDMETHOD_(NvAPI_Status, CopySubresourceRegion)
        (THIS_ __in ID3D11DeviceContext * pContext, __in ID3D11Resource * pDstResource, __in UINT DstSubresource,
         __in UINT DstGPUIndex, __in UINT DstX, __in UINT DstY, __in UINT DstZ,
         __in ID3D11Resource * pSrcResource, __in UINT SrcSubresource, __in UINT SrcGPUIndex,
         __in const D3D11_BOX *pSrcBox, __in UINT ExtendedFlags = 0) PURE;
#if defined(__d3d11_1_h__)
        STDMETHOD_(NvAPI_Status, CopySubresourceRegion1)
        (THIS_ __in ID3D11DeviceContext1 * pContext1, __in ID3D11Resource * pDstResource, __in UINT DstSubresource,
         __in UINT DstGPUIndex, __in UINT DstX, __in UINT DstY, __in UINT DstZ,
         __in ID3D11Resource * pSrcResource, __in UINT SrcSubresource, __in UINT SrcGPUIndex,
         __in const D3D11_BOX *pSrcBox, __in UINT CopyFlags, __in UINT ExtendedFlags = 0) PURE;
#else
        STDMETHOD_(NvAPI_Status, CopySubresourceRegion1)
        (THIS_ __in void *pContext1, __in ID3D11Resource *pDstResource, __in UINT DstSubresource,
         __in UINT DstGPUIndex, __in UINT DstX, __in UINT DstY, __in UINT DstZ,
         __in ID3D11Resource *pSrcResource, __in UINT SrcSubresource, __in UINT SrcGPUIndex,
         __in const D3D11_BOX *pSrcBox, __in UINT CopyFlags, __in UINT ExtendedFlags = 0) PURE;
#endif
        STDMETHOD_(NvAPI_Status, UpdateSubresource)
        (THIS_ __in ID3D11DeviceContext * pContext, __in ID3D11Resource * pDstResource, __in UINT DstSubresource, __in UINT DstGPUIndex,
         __in const D3D11_BOX *pDstBox, __in const void *pSrcData, __in UINT SrcRowPitch, __in UINT SrcDepthPitch) PURE;
        STDMETHOD_(NvAPI_Status, VSSetConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers,
         __in UINT *const pFirstConstant = NULL, __in UINT *const pNumConstants = NULL) PURE;
        STDMETHOD_(NvAPI_Status, PSSetConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers,
         __in UINT *const pFirstConstant = NULL, __in UINT *const pNumConstants = NULL) PURE;
        STDMETHOD_(NvAPI_Status, GSSetConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers,
         __in UINT *const pFirstConstant = NULL, __in UINT *const pNumConstants = NULL) PURE;
        STDMETHOD_(NvAPI_Status, DSSetConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers,
         __in UINT *const pFirstConstant = NULL, __in UINT *const pNumConstants = NULL) PURE;
        STDMETHOD_(NvAPI_Status, HSSetConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers,
         __in UINT *const pFirstConstant = NULL, __in UINT *const pNumConstants = NULL) PURE;
        STDMETHOD_(NvAPI_Status, CSSetConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers,
         __in UINT *const pFirstConstant = NULL, __in UINT *const pNumConstants = NULL) PURE;
        STDMETHOD_(NvAPI_Status, SetViewports)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask, __in UINT NumViewports,
         __in const D3D11_VIEWPORT *pViewports) PURE;
        STDMETHOD_(NvAPI_Status, SetScissorRects)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask, __in UINT NumRects,
         __in const D3D11_RECT *pRects) PURE;
        STDMETHOD_(HRESULT, GetData)
        (THIS_ __in ID3D11DeviceContext * pContext, __in ID3D11Asynchronous * pAsync, __in UINT GPUIndex,
         __out void *pData, __in UINT DataSize, __in UINT GetDataFlags) PURE;
#if defined(__d3d11_2_h__)
        STDMETHOD_(NvAPI_Status, UpdateTiles)
        (THIS_ __in ID3D11DeviceContext2 * pContext2, __in ID3D11Resource * pDestTiledResource,
         __in UINT GPUMask, __in const D3D11_TILED_RESOURCE_COORDINATE *pDestTileRegionStartCoordinate,
         __in const D3D11_TILE_REGION_SIZE *pDestTileRegionSize, __in const void *pSourceTileData,
         __in UINT Flags) PURE;
#else
        STDMETHOD_(NvAPI_Status, UpdateTiles)
        (THIS_ __in void *pContext2, __in ID3D11Resource *pDestTiledResource,
         __in UINT GPUMask, __in const void *pDestTileRegionStartCoordinate,
         __in const void *pDestTileRegionSize, __in const void *pSourceTileData,
         __in UINT Flags) PURE;
#endif

        STDMETHOD_(NvAPI_Status, CreateFences)
        (THIS_ __in UINT count, __out void **ppFences) PURE;
        STDMETHOD_(NvAPI_Status, SetFence)
        (THIS_ __in UINT GPUIndex, __in void *hFence, __in UINT64 value) PURE;
        STDMETHOD_(NvAPI_Status, WaitForFence)
        (THIS_ __in UINT GPUIMask, __in void *hFence, __in UINT64 value) PURE;
        STDMETHOD_(NvAPI_Status, FreeFences)
        (THIS_ __in UINT count, __in void **ppFences) PURE;
        STDMETHOD_(NvAPI_Status, PresentCompositingConfig)
        (THIS_ __in IUnknown * pSwapChain, __in UINT GPUMask,
         __in const D3D11_RECT *pRects, __in UINT flags) PURE;
        //////////////////////////////   end of VER1 methods   //////////////////////////////////////////

        //////////////////////////////   Methods added in VER2 //////////////////////////////////////////
        STDMETHOD_(NvAPI_Status, SetContextGPUMask)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT GPUMask) PURE;
        STDMETHOD_(NvAPI_Status, GetVideoBridgeStatus)
        (THIS_ __in IUnknown * pSwapChain, __in UINT * pVideoBridgeStatus) PURE;
        //////////////////////////////   end of VER2 methods   //////////////////////////////////////////

        //////////////////////////////   Methods added in VER3 //////////////////////////////////////////
        STDMETHOD_(NvAPI_Status, CreateMultiGPUConstantBuffer)
        (THIS_ __in const D3D11_BUFFER_DESC *pDesc, __in_opt const D3D11_SUBRESOURCE_DATA **ppInitialData, __out ID3D11Buffer **ppBuffer) PURE;
        STDMETHOD_(NvAPI_Status, ReleaseMultiGPUConstantBuffer)
        (THIS_ __in ID3D11Buffer * pBuffer) PURE;

        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////
        // Following XXSetMGPUConstantBuffers work the same way as DX XXSetConstantBuffers
        // The difference is that
        // 1. They are setting constant buffers on GPUs that are defined by
        //    current GPU mask that is set via SetGPUMask.
        // 2. For constant buffer created via CreateMultiGPUConstantBuffer these calls set GPU specific constant buffer.
        // 3. For regular constant buffers these calls set the same constant buffer on all GPUs defined by 1.
        // 4. If these functions are called in deferred context then GPUs are defined as GlobalGPUmask&LocalGPUMask
        //      where GlobalGPUmask is GPUMask set before CL execution
        //      and  LocalGPUMask is current GPUMask set in  CL.
        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////
        STDMETHOD_(NvAPI_Status, VSSetMGPUConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers) PURE;
        STDMETHOD_(NvAPI_Status, PSSetMGPUConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers) PURE;
        STDMETHOD_(NvAPI_Status, GSSetMGPUConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers) PURE;
        STDMETHOD_(NvAPI_Status, DSSetMGPUConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers) PURE;
        STDMETHOD_(NvAPI_Status, HSSetMGPUConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers) PURE;
        STDMETHOD_(NvAPI_Status, CSSetMGPUConstantBuffers)
        (THIS_ __in ID3D11DeviceContext * pContext, __in UINT StartSlot,
         __in UINT NumBuffers, __in ID3D11Buffer *const *ppConstantBuffers) PURE;

        STDMETHOD_(NvAPI_Status, UpdateConstantBuffer)
        (__in ID3D11DeviceContext * pContext, __in ID3D11Buffer * pBuffer, __in const void *pSrcData, __in_opt UINT GPUMask = 0) PURE;
        //////////////////////////////   end of VER3 methods   //////////////////////////////////////////
    };

//! Synchronization macros based on fences.
#define FENCE_SYNCHRONIZATION_START(pMultiGPUDevice, hFence, Value, srcGpu, dstGpu) \

    pMultiGPUDevice->SetFence(dstGpu, hFence, Value);                               \
    pMultiGPUDevice->WaitForFence(1 << (srcGpu), hFence, Value);                    \
    Value++;

#define FENCE_SYNCHRONIZATION_END(pMultiGPUDevice, hFence, Value, srcGpu, dstGpu) \

    pMultiGPUDevice->SetFence(srcGpu, hFence, Value);                             \
    pMultiGPUDevice->WaitForFence(1 << (dstGpu), hFence, Value);                  \
    Value++;

//! PresentCompositingConfig method flags.
#define NVAPI_PRESENT_COMPOSITING_CONFIG_FLAG_USE_VIDEO_BRIDGE 0x01

#define NVAPI_PRESENT_COMPOSITING_CONFIG_FLAG_CLEAR_OUTBANDS 0x02

#define NVAPI_PRESENT_COMPOSITING_CONFIG_FLAG_GET_VIDEO_BRIDGE_STATUS 0x80000000


#define NVAPI_VIDEO_BRIDGE_STATUS_AVAILABLE 0

#define NVAPI_VIDEO_BRIDGE_STATUS_NOT_AVAILABLE 1

#define NVAPI_VIDEO_BRIDGE_STATUS_FAILED_ACCESS 2

#define NVAPI_VIDEO_BRIDGE_STATUS_UNKNOWN 3


#define NVAPI_ALL_GPUS 0

    typedef ID3D11MultiGPUDevice_V1 ID3D11MultiGPUDevice;

#define ID3D11MultiGPUDevice_VER1 MAKE_NVAPI_VERSION(ID3D11MultiGPUDevice_V1, 1)

#define ID3D11MultiGPUDevice_VER2 MAKE_NVAPI_VERSION(ID3D11MultiGPUDevice_V1, 2)

#define ID3D11MultiGPUDevice_VER3 MAKE_NVAPI_VERSION(ID3D11MultiGPUDevice_V1, 3)

#define ID3D11MultiGPUDevice_VER ID3D11MultiGPUDevice_VER3


#define ALL_GPUS 0


    //! \ingroup dx
    NVAPI_INTERFACE NvAPI_D3D11_CreateMultiGPUDevice(__in ID3D11Device *pDevice, __in ULONG version, __out ULONG *currentVersion, __out ID3D11MultiGPUDevice **ppD3D11MultiGPUDevice, __in UINT maxGpus = ALL_GPUS);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used to query the support of Single Pass Stereo HW feature
    //! \ingroup dx
    typedef struct _NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V1
    {
        NvU32 version;                    // parameter struct version
        NvU32 bSinglePassStereoSupported; // Single Pass Stereo supported
    } NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V1;

    typedef struct _NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V2
    {
        NvU32 version;                            // _IN_     parameter struct version
        NvU32 bSinglePassStereoSupported : 1;     // _OUT_    Single Pass Stereo supported
        NvU32 bSinglePassStereoXYZWSupported : 1; // _OUT_    Single Pass Stereo XYZW supported
        NvU32 reserved : 30;                      // _INOUT_  bits reserved for future use
    } NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V2;

    typedef NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V2 NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS;
#define NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V1, 1)

#define NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_VER2 MAKE_NVAPI_VERSION(NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V2, 2)

#define NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_VER NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_VER2


#ifndef NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_VER
    typedef NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V1 NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS;
#define NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_V1, 1)

#define NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_VER NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS_VER1

#endif

#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_QuerySinglePassStereoSupport
    //
    //!   DESCRIPTION: Queries the support of Single Pass Stereo feature on current setup and returns appropriate boolean value.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     pDevice                                 The ID3D11Device to use.
    //! \param [inout]  pSinglePassStereoSupportedParams        Stores value of whether Single Pass Stereo is supported on current setup or not.
    //!
    //! \retval  NVAPI_OK                           Call succeeded.
    //! \retval  NVAPI_ERROR                        Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT             One or more arguments are invalid.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_QuerySinglePassStereoSupport(__in IUnknown *pDevice,
                                                           __inout NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS *pQuerySinglePassStereoSupportedParams);

#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))

#if defined(__cplusplus) && defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_SetSinglePassStereoMode
    //
    //!   DESCRIPTION: Set the Single Pass Stereo state
    //!
    //! \note   Note that this is an asynchronous function and returns NVAPI_OK if all arguments are valid.
    //!         Returned value NVAPI_OK does not reflect that Single Pass Stereo is supported or is set in hardware.
    //!         One must call NvAPI_D3D_QuerySinglePassStereoSupport() to confirm that the current setup
    //!         supports Single Pass Stereo before calling this set-function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  pDevOrContext                  The ID3D11Device or ID3D11DeviceContext to use.
    //! \param [in]  numViews                       Number of views to render.
    //! \param [in]  renderTargetIndexOffset        Offset between render targets of the different views.
    //! \param [in]  independentViewportMaskEnable  Is the independent viewport mask enabled.
    //!
    //! \retval  NVAPI_OK                           Call succeeded.
    //! \retval  NVAPI_ERROR                        Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT             One or more arguments are invalid.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_SetSinglePassStereoMode(__in IUnknown *pDevOrContext, __in NvU32 numViews, __in NvU32 renderTargetIndexOffset, __in NvU8 independentViewportMaskEnable);

#endif // defined(__cplusplus) && defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__)

#if defined(__cplusplus) && (defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_QuerySinglePassStereoSupport
    //
    //!   DESCRIPTION: Queries the support of Single Pass Stereo feature on current setup and returns appropriate boolean value.
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //! \param [in]     pDevice                                 The IDirect3DDevice12 to use.
    //! \param [inout]  pQuerySinglePassStereoSupportedParams   Stores value of whether Single Pass Stereo is supported on current setup or not.
    //!
    //! \retval  NVAPI_OK                                       Call succeeded.
    //! \retval  NVAPI_ERROR                                    Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT                         One or more arguments are invalid.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_QuerySinglePassStereoSupport(__in ID3D12Device *pDevice,
                                                             __inout NV_QUERY_SINGLE_PASS_STEREO_SUPPORT_PARAMS *pQuerySinglePassStereoSupportedParams);

#endif // defined(__cplusplus) && ( defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_SetSinglePassStereoMode
    //
    //!   DESCRIPTION: Set the Single Pass Stereo state.
    //!
    //! \note   Note that Single Pass Stereo state persists on a particular CommandList till it is closed.
    //!         The state is reset to default (disabled) for every newly created CommandList.
    //!         One must call NvAPI_D3D12_QuerySinglePassStereoSupport() to confirm that the current setup
    //!         supports Single Pass Stereo before calling this set-function.
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //! \param [in]  pCommandList                   The command list in which we will add push buffer commmands for enabling Single Pass Stereo feature
    //!                                             Note: Command list of type D3D12_COMMAND_LIST_TYPE_BUNDLE is not allowed for setting the state of this feature.
    //! \param [in]  numViews                       Number of views to render.
    //! \param [in]  RenderTargetIndexOffset        Offset between render targets of the different views.
    //! \param [in]  IndependentViewportMaskEnable  Is the independent viewport mask enabled.
    //!
    //! \retval  NVAPI_OK                           Call succeeded.
    //! \retval  NVAPI_ERROR                        Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT             One or more arguments are invalid.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_SetSinglePassStereoMode(__in ID3D12GraphicsCommandList *pCommandList,
                                                        __in NvU32 numViews,
                                                        __in NvU32 renderTargetIndexOffset,
                                                        __in NvU8 independentViewportMaskEnable);

#endif // defined(__cplusplus) && ( defined(__d3d12_h__))

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used to query the support of MultiView HW feature
    //! \ingroup dx

    typedef struct _NV_QUERY_MULTIVIEW_SUPPORT_PARAMS_V1
    {
        NvU32 version;                            //  _IN_     parameter struct version
        NvU32 bMultiViewSupported : 1;            //  _OUT_    MultiView supported (Render 4 views in a single pass)
        NvU32 bSinglePassStereoSupported : 1;     //  _OUT_    StereoX supported (Render 2 views in a single pass)
        NvU32 bSinglePassStereoXYZWSupported : 1; //  _OUT_    StereoXYZW supported (Render 2 views in a single pass)
        NvU32 reserved : 29;                      //  _INOUT_  bits reserved for future use
    } NV_QUERY_MULTIVIEW_SUPPORT_PARAMS_V1;

    typedef NV_QUERY_MULTIVIEW_SUPPORT_PARAMS_V1 NV_QUERY_MULTIVIEW_SUPPORT_PARAMS;
#define NV_QUERY_MULTIVIEW_SUPPORT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_QUERY_MULTIVIEW_SUPPORT_PARAMS_V1, 1)

#define NV_QUERY_MULTIVIEW_SUPPORT_PARAMS_VER NV_QUERY_MULTIVIEW_SUPPORT_PARAMS_VER1

#define NV_MULTIVIEW_MAX_SUPPORTED_VIEWS 4


#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_QueryMultiViewSupport
    //
    //!   DESCRIPTION: Queries the support of MultiView feature on current setup and returns appropriate boolean value.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since          Release: 410
    //!
    //! \param [in]     pDevice                                 The ID3D11Device to use.
    //! \param [inout]  pMultiViewSupportedParams               Stores value of whether MultiView is supported on current setup or not.
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_QueryMultiViewSupport(__in IUnknown *pDevice,
                                                    __inout NV_QUERY_MULTIVIEW_SUPPORT_PARAMS *pQueryMultiViewSupportedParams);

#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used for setting the Mode for MultiView HW Feature.
    //! \ingroup dx
    typedef struct _NV_MULTIVIEW_PARAMS_V1
    {
        NvU32 version;                                                   // _IN_  parameter struct version
        NvU32 numViews;                                                  // _IN_  Number of views to render.
        NvU32 renderTargetIndexOffset[NV_MULTIVIEW_MAX_SUPPORTED_VIEWS]; // _IN_  Offset between render targets for each of the per views.
        NvU8 independentViewportMaskEnable;                              // _IN_  Is the independent viewport mask enabled.
    } NV_MULTIVIEW_PARAMS_V1;

    typedef NV_MULTIVIEW_PARAMS_V1 NV_MULTIVIEW_PARAMS;
#define NV_MULTIVIEW_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_MULTIVIEW_PARAMS_V1, 1)

#define NV_MULTIVIEW_PARAMS_VER NV_MULTIVIEW_PARAMS_VER1


#if defined(__cplusplus) && defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_SetMultiViewMode
    //
    //!   DESCRIPTION: Set the MultiView state
    //!
    //! \note   Note that this is an asynchronous function and returns NVAPI_OK if all arguments are valid.
    //!         Returned value NVAPI_OK does not reflect that MultiView is supported or is set in hardware.
    //!         One must call NvAPI_D3D_QueryMultiViewSupport() to confirm that the current setup
    //!         supports MultiView before calling this set-function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since          Release: 410
    //!
    //! \param [in]  pDevOrContext                      The ID3D11Device or ID3D11DeviceContext to use.
    //! \param [in]  pMultiViewParams                   MultiView Params
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_SetMultiViewMode(__in IUnknown *pDevOrContext, __in NV_MULTIVIEW_PARAMS *pMultiViewParams);

#endif // defined(__cplusplus) && defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__)

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used to query the support of Lens Matched Shading HW feature
    //! \ingroup dx
    typedef struct _NV_QUERY_MODIFIED_W_SUPPORT_PARAMS
    {
        NvU32 version;             // parameter struct version
        NvU32 bModifiedWSupported; // Modified W supported
    } NV_QUERY_MODIFIED_W_SUPPORT_PARAMS_V1;

    typedef NV_QUERY_MODIFIED_W_SUPPORT_PARAMS_V1 NV_QUERY_MODIFIED_W_SUPPORT_PARAMS;
#define NV_QUERY_MODIFIED_W_SUPPORT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_QUERY_MODIFIED_W_SUPPORT_PARAMS_V1, 1)

#define NV_QUERY_MODIFIED_W_SUPPORT_PARAMS_VER NV_QUERY_MODIFIED_W_SUPPORT_PARAMS_VER1


#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_QueryModifiedWSupport
    //
    //!   DESCRIPTION: Queries the support of Modified W feature on current setup and returns appropriate boolean value.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     pDevice                             The ID3D11Device to use.
    //! \param [inout]  pQueryModifiedWSupportedParams      Stores value of whether Modified W is supported on current setup or not.
    //!
    //! \retval  NVAPI_OK                           Call succeeded.
    //! \retval  NVAPI_ERROR                        Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT             One or more arguments are invalid.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_QueryModifiedWSupport(__in IUnknown *pDev,
                                                    __inout NV_QUERY_MODIFIED_W_SUPPORT_PARAMS *pQueryModifiedWSupportedParams);
#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))

//! SUPPORTED OS:  Windows 7 and higher
//!
#define NV_MODIFIED_W_MAX_VIEWPORTS 16


    typedef struct _NV_MODIFIED_W_COEFFICIENTS
    {
        float fA;         // A coefficient in w' = w + Ax + By
        float fB;         // B coefficient in w' = w + Ax + By
        float fAReserved; // reserved
        float fBReserved; // reserved

        float fReserved[2]; // reserved
    } NV_MODIFIED_W_COEFFICIENTS;

    typedef struct _NV_MODIFIED_W_PARAMS
    {
        NvU32 version;                                                                 // parameter struct version
        NvU32 numEntries;                                                              // number of valid NV_MODIFIED_W_COEFFICIENTS structs in array
        NV_MODIFIED_W_COEFFICIENTS modifiedWCoefficients[NV_MODIFIED_W_MAX_VIEWPORTS]; // coefficients

        NvU32 id;                                    // reserved
        NvU32 reserved[NV_MODIFIED_W_MAX_VIEWPORTS]; // reserved
    } NV_MODIFIED_W_PARAMS_V1;

    typedef NV_MODIFIED_W_PARAMS_V1 NV_MODIFIED_W_PARAMS;
#define NV_MODIFIED_W_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_MODIFIED_W_PARAMS_V1, 1)

#define NV_MODIFIED_W_PARAMS_VER NV_MODIFIED_W_PARAMS_VER1


#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_SetModifiedWMode
    //
    //!   DESCRIPTION: Set the Modified W state and A,B coefficients for HW support
    //!
    //! \note   Note that this is an asynchronous function and returns NVAPI_OK if all arguments are valid.
    //!         Returned value NVAPI_OK does not reflect that Modified-W is supported or is set in hardware.
    //!         One must call NvAPI_D3D_QueryModifiedWSupport() to confirm that the current setup
    //!         supports Modified-W before calling this set-function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  pDevOrContext                  The ID3D11Device or ID3D11DeviceContext to use.
    //! \param [in]  psModifiedWParams              Modified W parameters.
    //!
    //! \retval  NVAPI_OK                           Call succeeded.
    //! \retval  NVAPI_ERROR                        Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT             One or more arguments are invalid.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_SetModifiedWMode(__in IUnknown *pDevOrContext, __in NV_MODIFIED_W_PARAMS *psModifiedWParams);

#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_QueryModifiedWSupport
    //
    //!   DESCRIPTION: Queries the support of Modified-W feature on current setup and returns appropriate boolean value.
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //! \param [in]     pDevice                         The ID3D12Device Device created by application
    //! \param [inout]  pQueryModifiedWSupportedParams  Stores value of whether Modified-W is supported on current setup or not.
    //!
    //! \retval  NVAPI_OK                               Call succeeded.
    //! \retval  NVAPI_ERROR                            Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT                 One or more arguments are invalid.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_QueryModifiedWSupport(__in ID3D12Device *pDevice,
                                                      __inout NV_QUERY_MODIFIED_W_SUPPORT_PARAMS *pQueryModifiedWSupportedParams);

#endif // defined(__cplusplus) && ( defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_SetModifiedWMode
    //
    //!   DESCRIPTION: Set the Modified-W state and A, B coefficients for HW support
    //!
    //! \note   Note that Modified-W state persists on a particular CommandList till it is closed.
    //!         The state is reset to default (disabled) for every newly created CommandList.
    //!         One must call NvAPI_D3D12_QueryModifiedWSupport() to confirm that the current setup
    //!         supports Modified-W before calling this set-function.
    //!
    //! SUPPORTED OS:  Windows 10
    //!
    //!
    //! \param [in]  pCommandList                   The command list in which we will add push buffer commmands for enabling Modified-W feature
    //!                                             Note: Command list of type D3D12_COMMAND_LIST_TYPE_BUNDLE is not allowed for setting the state of this feature.
    //! \param [in]  pModifiedWParams               Modified-W parameters.
    //!
    //! \retval  NVAPI_OK                           Call succeeded.
    //! \retval  NVAPI_ERROR                        Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT             One or more arguments are invalid.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_SetModifiedWMode(__in ID3D12GraphicsCommandList *pCommandList,
                                                 __in NV_MODIFIED_W_PARAMS *pModifiedWParams);

#endif // defined(__cplusplus) && ( defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__))

    //! \ingroup dx
    //! See NvAPI_D3D_CreateLateLatchObject
    DECLARE_INTERFACE(ID3DLateLatchObject_V1)
    {
        STDMETHOD_(UINT, Release)
        (THIS) PURE; //! Release the created LateLatch object and associated buffers.
        STDMETHOD_(NvAPI_Status, Latch)
        (THIS_ __in IUnknown *pContext = NULL) PURE; //! Request to queue the latch operation to the GPU.
        STDMETHOD_(ID3D11Buffer *, GetD3D11Buffer)
        (THIS_ __in UINT index = 0) PURE; //! Get ID3D11Buffer* available at the given 'index'
        STDMETHOD_(UINT, GetBufferCount)
        (THIS) PURE; //! Returns the number of late latch buffers created for this LateLatchObject.
        STDMETHOD_(NvAPI_Status, UpdateData)
        (THIS_ __in void **ppData) PURE; //! Fully update all LateLatch buffers with new data.
        STDMETHOD_(NvAPI_Status, UpdateData)
        (THIS_ __in void *pData, __in size_t offset,
         __in size_t size, __in UINT index = 0) PURE; //! Partially update one of the LateLatch buffers with new data.
    };

    //! \ingroup dx
    //! See NvAPI_D3D_CreateLateLatchObject
    typedef ID3DLateLatchObject_V1 ID3DLateLatchObject;
#define ID3DLateLatchObject_VER1 MAKE_NVAPI_VERSION(ID3DLateLatchObject_V1, 1)

#define ID3DLateLatchObject_VER ID3DLateLatchObject_VER1


    typedef struct _NV_D3D_LATELATCH_OBJECT_DESC_V1
    {
        NvU32 version;
        NvU32 numBuffers;                           // _IN_  Number of LateLatch buffers that the app wants to create.
        D3D11_BUFFER_DESC **ppBufferDesc;           // _IN_  Description of buffers
        ID3DLateLatchObject **ppD3DLateLatchObject; // _Out_ Pointer to created interface
    } NV_D3D_LATELATCH_OBJECT_DESC_V1;

    typedef NV_D3D_LATELATCH_OBJECT_DESC_V1 NV_D3D_LATELATCH_OBJECT_DESC;
#define NV_D3D_LATELATCH_OBJECT_DESC_VER1 MAKE_NVAPI_VERSION(NV_D3D_LATELATCH_OBJECT_DESC_V1, 1)

#define NV_D3D_LATELATCH_OBJECT_DESC_VER NV_D3D_LATELATCH_OBJECT_DESC_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_CreateLateLatchObject
    //
    //! DESCRIPTION: Creates a Late Latch Object interface
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 384
    //!
    //! \param [in]      pDevice                   Current ID3D11Device.
    //! \param [inout]   pLateLatchObjectDesc      Pointer to in/out structure for late latch object creation
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D_CreateLateLatchObject(__in IUnknown *pDevice, __inout NV_D3D_LATELATCH_OBJECT_DESC *pLateLatchObjectDesc);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))
    //! \ingroup dx
    //! See NvAPI_D3D_QueryLateLatchSupport
    typedef struct _NV_QUERY_LATELATCH_SUPPORT_PARAMS
    {
        NvU32 version;             //!< (IN)  Parameter structure version
        NvU32 bLateLatchSupported; //!< (OUT) LateLatch supported
    } NV_QUERY_LATELATCH_SUPPORT_PARAMS_V1;

    typedef NV_QUERY_LATELATCH_SUPPORT_PARAMS_V1 NV_QUERY_LATELATCH_SUPPORT_PARAMS;
#define NV_QUERY_LATELATCH_SUPPORT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_QUERY_LATELATCH_SUPPORT_PARAMS_V1, 1)

#define NV_QUERY_LATELATCH_SUPPORT_PARAMS_VER NV_QUERY_LATELATCH_SUPPORT_PARAMS_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_QueryLateLatchSupport
    //
    //!   DESCRIPTION: Queries the support of DX11 Late Latch feature on current setup.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 384
    //!
    //! \param [in]     pDevice                             Current ID3D11Device.
    //! \param [inout]  pQueryLateLatchSupportParams        Stores value of whether Late Latch is supported on current setup or not.
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_QueryLateLatchSupport(__in IUnknown *pDevice,
                                                    __inout NV_QUERY_LATELATCH_SUPPORT_PARAMS *pQueryLateLatchSupportParams);
#endif // defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_RegisterDevice
    //
    //!   DESCRIPTION: Tells NvAPI about a D3D device. This must be called prior to using any DX1x
    //!                deferred-context calls.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  pDev                           The ID3D10Device or ID3D11Device to use.
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_RegisterDevice(__in IUnknown *pDev);

#endif // if defined(__cplusplus) && (defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_MultiDrawInstancedIndirect
    //
    //!   DESCRIPTION: Extension of DrawInstancedIndirect that takes a draw count in. The effect of this function is to loop over
    //!                that draw count and perform the DrawInstancedIndirect operation each time, incrementing the buffer offset
    //!                by the supplied stride each time.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]        *pDevContext11                  Pointer to D3D11 device context (IC or DC)
    //! \param [in]         drawCount                      Do DrawInstancedIndirect operation this many times
    //! \param [in]        *pBuffer                        ID3D11Buffer that contains the command parameters
    //! \param [in]         alignedByteOffsetForArgs       Start in pBuffer of the command parameters
    //! \param [in]         alignedByteStrideForArgs       Stride of the command parameters - must be >= 4 * sizeof(NvU32)
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \retval  NVAPI_D3D_DEVICE_NOT_REGISTERED     When MultiDraw is called on a deferred context, and the device has not yet
    //!                                              been registered (NvAPI_D3D_RegisterDevice), this error is returned.
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_MultiDrawInstancedIndirect(__in ID3D11DeviceContext *pDevContext11,
                                                           __in NvU32 drawCount,
                                                           __in ID3D11Buffer *pBuffer,
                                                           __in NvU32 alignedByteOffsetForArgs,
                                                           __in NvU32 alignedByteStrideForArgs);

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_MultiDrawIndexedInstancedIndirect
    //
    //!   DESCRIPTION: Extension of DrawIndexedInstancedIndirect that takes a draw count in. The effect of this function is to loop over
    //!                that draw count and perform the DrawIndexedInstancedIndirect operation each time, incrementing the buffer offset
    //!                by the supplied stride each time.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]        *pDevContext11                  Pointer to D3D11 device context (IC or DC)
    //! \param [in]         drawCount                      Do DrawIndexedInstancedIndirect operation this many times
    //! \param [in]        *pBuffer                        ID3D11Buffer that contains the command parameters
    //! \param [in]         alignedByteOffsetForArgs       Start in pBuffer of the command parameters
    //! \param [in]         alignedByteStrideForArgs       Stride of the command parameters - must be >= 5 * sizeof(NvU32)
    //!
    //! RETURN STATUS:     This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                    If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \retval  NVAPI_D3D_DEVICE_NOT_REGISTERED     When MultiDraw is called on a deferred context, and the device has not yet
    //!                                              been registered (NvAPI_D3D_RegisterDevice), this error is returned.
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_MultiDrawIndexedInstancedIndirect(__in ID3D11DeviceContext *pDevContext11,
                                                                  __in NvU32 drawCount,
                                                                  __in ID3D11Buffer *pBuffer,
                                                                  __in NvU32 alignedByteOffsetForArgs,
                                                                  __in NvU32 alignedByteStrideForArgs);

#endif // defined (__cplusplus) && (defined(__d3d11_h__) || defined(__d3d11_1_h__))

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME:   NvAPI_D3D_ImplicitSLIControl
    //
    //! This function enables/disables the SLI rendering mode. It has to be called prior to D3D device creation. Once this function is called with DISABLE_IMPLICIT_SLI
    //! parameter all subsequently created devices will be forced to run in a single gpu mode until the same function is called with ENABLE_IMPLICIT_SLI parameter. The enable
    //! call will force all subsequently created devices to run in default implicit SLI mode being determined by an application profile or a global control panel SLI setting.
    //! This NvAPI call is supported in all DX10+ versions of the driver. It is supported on all Windows versions.
    //!
    //! \retval    NVAPI_OK                             Completed request
    //! \retval    NVAPI_ERROR                          Error occurred
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup dx
    typedef enum _IMPLICIT_SLI_CONTROL
    {
        DISABLE_IMPLICIT_SLI = 0,
        ENABLE_IMPLICIT_SLI = 1,
    } IMPLICIT_SLI_CONTROL;

    //! \ingroup dx
    NVAPI_INTERFACE NvAPI_D3D_ImplicitSLIControl(__in IMPLICIT_SLI_CONTROL implicitSLIControl);

#endif // defined (__cplusplus) && ( defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) ||defined(__d3d11_h__) )

    //! SUPPORTED OS:  Windows 10
    //!

#if defined(__cplusplus) && defined(__d3d12_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_UseDriverHeapPriorities
    //
    //! \code
    //!   DESCRIPTION: Sets the driver to override Microsoft's heap allocation priority values with Nvidia driver priority values. Use this once per process before allocating resources.
    //!
    //! \param [in] pDevice The IDirect3DDevice12 to use.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \since Release: 381
    //!
    //! \endcode
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_UseDriverHeapPriorities(__in ID3D12Device *pDevice);

#endif // defined (__cplusplus) && defined(__d3d12_h__)

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus) && (defined(__d3d12_h__))

    typedef struct _NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS
    {
        __in NvU32 version;                            //!< Structure version
        __in ID3D12Device *pDevice;                    //!< The ID3D12Device created by application.
        __in ID3D12Resource *pSwapChainBuffer;         //!< The ID3D12Resource part of the application swap chain that has companion allocations.
        __in NvU32 companionBufferCount;               //!< The number of ID3D12Resource pointers requested to be returned in the ppComanionResources array, which should match ID3D12Device::GetNodeCount for the complete set of companion allocations.
        __inout ID3D12Resource **ppCompanionResources; //!< An array of ID3D12Resource pointers sized to match companionBufferCount, which will receive the companion allocations.
    } NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS_V1;

    typedef NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS_V1 NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS;
#define NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS_VER1 MAKE_NVAPI_VERSION(NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS_V1, 1)

#define NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS_VER NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_Mosaic_GetCompanionAllocations
    //
    //!   DESCRIPTION: Queries the driver for internally created allocations that accompany a swap chain buffer for present-related operations.
    //!                Surfaces returned by this interface must be destroied at the same time that the original swap chain buffer is destroyed.
    //!                In general this occurs prior to a ResizeBuffers call, or when the swap chain is released.
    //!                Note that this function only works in Landscape orientation due to Windows behavior, and attempts to utilize it with any type of display
    //!                rotation will result in failure.
    //!
    //! \param [inout]  companionBufferCount            The parameters for this function.
    //!
    //! \retval  NVAPI_OK                               Call succeeded.
    //! \retval  NVAPI_ERROR                            Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT                 One or more arguments are invalid.
    //! \retval  NVAPI_INVALID_CALL                     System configuration does not support this interface (eg, display is rotated, mosaic not enabled, etc)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_Mosaic_GetCompanionAllocations(__inout NV_D3D12_MOSAIC_GETCOMPANIONALLOCATIONS *params);

#endif // defined(__cplusplus) && ( defined(__d3d12_h__))

//! SUPPORTED OS:  Windows 10 and higher
//!
#if defined(__cplusplus) && (defined(__d3d12_h__))

    typedef struct _NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS
    {
        __in NvU32 version;                    //!< Structure version
        __in ID3D12Device *pDevice;            //!< The ID3D12Device created by application.
        __in ID3D12Resource *pSwapChainBuffer; //!< The ID3D12Resource part of the application swap chain.
        __inout NvU32 *pPartitionCount;        //!< A variable to receive the number of NV_MGPU_MOSAIC_DISPLAY_SURFACE_PARTITION elements returned or that holds the size of pPartitions when it is non-NULL.
        __inout RECT *pViewport;               //!< An optional array to hold the viewport information per partition. When this is valid pNodeMask must also be valid.
        __inout NvU32 *pNodeMask;              //!< An optional array to hold the GPU mask where this viewport must be valid per partition. When this is valid pViewport must also be valid.
    } NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS_V1;

    typedef NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS_V1 NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS;
#define NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS_VER1 MAKE_NVAPI_VERSION(NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS_V1, 1)

#define NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS_VER NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_Mosaic_GetViewportAndGpuPartitions
    //
    //!   DESCRIPTION: Queries the driver for how a swap chain display surface is subdivided across devices in relation to display connectivity.
    //!                Call this interface with NULL pPartitions in order to know how many subdivisions exist and allocate the proper size to hold all data.
    //!                Call it a second time with a properly sized partitions array to receive all subdivisions along with GPU node masks of each rectangle.
    //!                Note that this function only works in Landscape orientation due to Windows behavior, and attempts to utilize it with any type of display
    //!                rotation will result in failure.
    //!
    //! \param [inout]  params                          The parameters for this function.
    //!
    //! \retval  NVAPI_OK                               Call succeeded.
    //! \retval  NVAPI_ERROR                            Call failed.
    //! \retval  NVAPI_INVALID_ARGUMENT                 One or more arguments are invalid.
    //! \retval  NVAPI_INVALID_CALL                     System configuration does not support this interface (eg, display is rotated, mosaic not enabled, etc)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_Mosaic_GetViewportAndGpuPartitions(__inout NV_D3D12_MOSAIC_GETVIEWPORTANDGPUPARTITIONS *params);

#endif // defined(__cplusplus) && ( defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__))
    //! \ingroup dx
    //! See NvAPI_D3D1x_GetGraphicsCapabilities

    typedef struct _NV_D3D1x_GRAPHICS_CAPS_V1
    {
        NvU32 bExclusiveScissorRectsSupported : 1;    //!< (OUT) Outputs whether Exclusive Scissor Rects are supported or not
        NvU32 bVariablePixelRateShadingSupported : 1; //!< (OUT) Outputs whether Variable Pixel Shading Rates are supported or not
        NvU32 reservedBits : 30;                      // Reserved bits for future expansion
        NvU32 reserved[7];                            // Reserved for future expansion
    } NV_D3D1x_GRAPHICS_CAPS_V1;

#define NV_D3D1x_GRAPHICS_CAPS_VER1 MAKE_NVAPI_VERSION(NV_D3D1x_GRAPHICS_CAPS_V1, 1)


    typedef struct _NV_D3D1x_GRAPHICS_CAPS_V2
    {
        NvU32 bExclusiveScissorRectsSupported : 1;    //!< (OUT) Outputs whether Exclusive Scissor Rects are supported or not
        NvU32 bVariablePixelRateShadingSupported : 1; //!< (OUT) Outputs whether Variable Pixel Shading Rates are supported or not
        NvU32 bFastUAVClearSupported : 1;             //!< (OUT) Outputs whether UAVClear is implemented using ZBC rather than compute shader
        NvU32 reservedBits : 29;                      // Reserved bits for future expansion
        NvU16 majorSMVersion;                         //!< (OUT) Major SM version of the device
        NvU16 minorSMVersion;                         //!< (OUT) Minor SM version of the device
        NvU32 reserved[14];                           // Reserved for future expansion
    } NV_D3D1x_GRAPHICS_CAPS_V2;

    typedef NV_D3D1x_GRAPHICS_CAPS_V2 NV_D3D1x_GRAPHICS_CAPS;
#define NV_D3D1x_GRAPHICS_CAPS_VER2 MAKE_NVAPI_VERSION(NV_D3D1x_GRAPHICS_CAPS_V2, 2)

#define NV_D3D1x_GRAPHICS_CAPS_VER NV_D3D1x_GRAPHICS_CAPS_VER2


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_GetGraphicsCapabilities
    //
    //! DESCRIPTION: Get the graphics capabilities for current hardware/software setup
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 410
    //!
    //! \param [in]        pDevice              The ID3D11Device device to be used for getting the graphics capabilities.
    //! \param [in]        structVersion        Version of the caps struct. Should be set to NV_D3D1x_GRAPHICS_CAPS_VER.
    //! \param [inout]     pGraphicsCaps        Pointer to a NV_D3D1x_GRAPHICS_CAPS_CAPS struct created by app.
    //!                                         Graphics capabilities will be filled in this struct by the driver.
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D1x_GetGraphicsCapabilities(__in IUnknown *pDevice,
                                                        __in NvU32 structVersion,
                                                        __inout NV_D3D1x_GRAPHICS_CAPS *pGraphicsCaps);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d12_h__))
    //! \ingroup dx
    //! See NvAPI_D3D12_GetGraphicsCapabilities

    typedef struct _NV_D3D12_GRAPHICS_CAPS_V1
    {
        NvU32 bExclusiveScissorRectsSupported : 1;    //!< (OUT) Outputs whether Exclusive Scissor Rects are supported or not
        NvU32 bVariablePixelRateShadingSupported : 1; //!< (OUT) Outputs whether Variable Pixel Shading Rates are supported or not
        NvU32 bFastUAVClearSupported : 1;             //!< (OUT) Outputs whether UAVClear is implemented using ZBC rather than compute shader
        NvU32 reservedBits : 29;                      // Reserved bits for future expansion
        NvU16 majorSMVersion;                         //!< (OUT) Major SM version of the device
        NvU16 minorSMVersion;                         //!< (OUT) Minor SM version of the device
        NvU32 reserved[6];                            // Reserved for future expansion
    } NV_D3D12_GRAPHICS_CAPS_V1;

    typedef NV_D3D12_GRAPHICS_CAPS_V1 NV_D3D12_GRAPHICS_CAPS;
#define NV_D3D12_GRAPHICS_CAPS_VER1 MAKE_NVAPI_VERSION(NV_D3D12_GRAPHICS_CAPS_V1, 1)

#define NV_D3D12_GRAPHICS_CAPS_VER NV_D3D12_GRAPHICS_CAPS_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D12_GetGraphicsCapabilities
    //
    //! DESCRIPTION: Get the graphics capabilities for current hardware/software setup
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //!
    //! \since Release: 410
    //!
    //! \param [in]        pDevice              The ID3D12Device device to be used for getting the graphics capabilities.
    //! \param [in]        structVersion        Version of the caps struct. Should be set to NV_D3D12_GRAPHICS_CAPS_VER.
    //! \param [inout]     pGraphicsCaps        Pointer to a NV_D3D12_GRAPHICS_CAPS_CAPS struct created by app.
    //!                                         Graphics capabilities will be filled in this struct by the driver.
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D12_GetGraphicsCapabilities(__in IUnknown *pDevice,
                                                        __in NvU32 structVersion,
                                                        __inout NV_D3D12_GRAPHICS_CAPS *pGraphicsCaps);

#endif // defined(__cplusplus) && (defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))
#define NV_MAX_NUM_EXCLUSIVE_SCISSOR_RECTS 16

#endif // defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__))
    //! \ingroup dx
    //! See NvAPI_D3D11_RSSetExclusiveScissorRects

    typedef struct _NV_D3D11_EXCLUSIVE_SCISSOR_RECT_DESC_V1
    {
        bool enableExclusiveScissorRect; //!< (IN) Control of enabling Exclusive ScissorRect per rect
        D3D11_RECT scissorRect;          //!< (IN) Single rect dimensions
    } NV_D3D11_EXCLUSIVE_SCISSOR_RECT_DESC_V1;

    typedef struct _NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC_V1
    {
        NvU32 version;                                   //!< (IN) Parameter struct version
        NvU32 numRects;                                  //!< (IN) Number of Exclusive Scissor Rects to be set.
                                                         //        \note Passing zero will globally disable Exclusive Scissor Rects
                                                         //        \note Max value can be equal to NV_MAX_NUM_EXCLUSIVE_SCISSOR_RECTS
        NV_D3D11_EXCLUSIVE_SCISSOR_RECT_DESC_V1 *pRects; //!< (IN) Array of NV_D3D11_EXCLUSIVE_SCISSOR_RECT_DESC with number of elements equal to Exclusive Scissor Rects
    } NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC_V1;

    typedef NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC_V1 NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC;
    typedef NV_D3D11_EXCLUSIVE_SCISSOR_RECT_DESC_V1 NV_D3D11_EXCLUSIVE_SCISSOR_RECT_DESC;
#define NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC_VER1 MAKE_NVAPI_VERSION(NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC_V1, 1)

#define NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC_VER NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_RSSetExclusiveScissorRects
    //
    //! DESCRIPTION: Sets Exclusive Scissor Rects. The content bounded within the Scissor Rects
    //!              will be excluded from rendering unlike regular Scissor Rects. These are
    //!              orthogonal with Regular Scissor Rects.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 410
    //!
    //! \param [in]        pContext                     The device context (ID3D11DeviceContext) to be used for setting the Exclusive Scissor Rects.
    //! \param [in]        pExclusiveScissorRectsDesc   Description of the Exclusive Scissor Rects duly filled with their dimensions
    //!                                                 and control over enablement of individual ScissorRect
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_RSSetExclusiveScissorRects(__in IUnknown *pContext,
                                                           __in NV_D3D11_EXCLUSIVE_SCISSOR_RECTS_DESC *pExclusiveScissorRectsDesc);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))
    //! \ingroup dx
    //! See NvAPI_D3D11_RSSetViewportsPixelShadingRates

#define NV_MAX_PIXEL_SHADING_RATES 16 // Currently only 12 Shading Rates are available

#define NV_MAX_NUM_VIEWPORTS 16


    // Every element in Shading Rate Resource represents the shading rate for all pixels in the corresponding tile
    // The Shading Rate Resource dimensions must be the bound render target size divided by the tile dimensions (width/height)

#define NV_VARIABLE_PIXEL_SHADING_TILE_WIDTH 16  // Width of the tile, in pixels

#define NV_VARIABLE_PIXEL_SHADING_TILE_HEIGHT 16 // Height of the tile, in pixels


    typedef enum
    {
        NV_PIXEL_X0_CULL_RASTER_PIXELS,    // No shading, tiles are culled
        NV_PIXEL_X16_PER_RASTER_PIXEL,     // 16 shading passes per 1 raster pixel
        NV_PIXEL_X8_PER_RASTER_PIXEL,      //  8 shading passes per 1 raster pixel
        NV_PIXEL_X4_PER_RASTER_PIXEL,      //  4 shading passes per 1 raster pixel
        NV_PIXEL_X2_PER_RASTER_PIXEL,      //  2 shading passes per 1 raster pixel
        NV_PIXEL_X1_PER_RASTER_PIXEL,      //  Per-pixel shading
        NV_PIXEL_X1_PER_2X1_RASTER_PIXELS, //  1 shading pass per  2 raster pixels
        NV_PIXEL_X1_PER_1X2_RASTER_PIXELS, //  1 shading pass per  2 raster pixels
        NV_PIXEL_X1_PER_2X2_RASTER_PIXELS, //  1 shading pass per  4 raster pixels
        NV_PIXEL_X1_PER_4X2_RASTER_PIXELS, //  1 shading pass per  8 raster pixels
        NV_PIXEL_X1_PER_2X4_RASTER_PIXELS, //  1 shading pass per  8 raster pixels
        NV_PIXEL_X1_PER_4X4_RASTER_PIXELS  //  1 shading pass per 16 raster pixels
    } NV_PIXEL_SHADING_RATE;
#endif // defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__))
    typedef struct _NV_D3D11_VIEWPORT_SHADING_RATE_DESC_V1
    {
        bool enableVariablePixelShadingRate;                                //!< (IN) Control of enabling Variable Pixel Shading Rate per viewport
        NV_PIXEL_SHADING_RATE shadingRateTable[NV_MAX_PIXEL_SHADING_RATES]; //!< (IN) Lookup table of converting Shading Rate Index to NV_PIXEL_SHADING_RATE
                                                                            //        \note Shading Rate Resource View would be populated by application with indices of this table
    } NV_D3D11_VIEWPORT_SHADING_RATE_DESC_V1;

    typedef struct _NV_D3D11_VIEWPORTS_SHADING_RATE_DESC_V1
    {
        NvU32 version;                                      //!< (IN) Struct version
        NvU32 numViewports;                                 //!< (IN) Number of viewports with shading rate set.
                                                            //        \note Passing zero will globally disable Variable Pixel Rate Shading for all viewports immaterial of values in pViewports
                                                            //        \note Max value can be equal to NV_MAX_NUM_VIEWPORTS
        NV_D3D11_VIEWPORT_SHADING_RATE_DESC_V1 *pViewports; //!< (IN) Array of NV_D3D11_VIEWPORT_SHADING_RATE_DESC with number of elements equal to NumViewports
    } NV_D3D11_VIEWPORTS_SHADING_RATE_DESC_V1;

    typedef NV_D3D11_VIEWPORTS_SHADING_RATE_DESC_V1 NV_D3D11_VIEWPORTS_SHADING_RATE_DESC;
    typedef NV_D3D11_VIEWPORT_SHADING_RATE_DESC_V1 NV_D3D11_VIEWPORT_SHADING_RATE_DESC;
#define NV_D3D11_VIEWPORTS_SHADING_RATE_DESC_VER1 MAKE_NVAPI_VERSION(NV_D3D11_VIEWPORTS_SHADING_RATE_DESC_V1, 1)

#define NV_D3D11_VIEWPORTS_SHADING_RATE_DESC_VER NV_D3D11_VIEWPORTS_SHADING_RATE_DESC_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_RSSetViewportsPixelShadingRates
    //
    //! DESCRIPTION: Sets Pixel Shading Rates and Enables/Disables per-viewport Variable Pixel Shading Rate feature
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 410
    //!
    //! \param [in]        pContext             The device context (ID3D11DeviceContext) to be used for setting the Viewports Shading Rates
    //! \param [in]        pShadingRateDesc     Shading rate descriptor
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_RSSetViewportsPixelShadingRates(__in IUnknown *pContext,
                                                                __in NV_D3D11_VIEWPORTS_SHADING_RATE_DESC *pShadingRateDesc);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))

    typedef enum _NV_SRRV_DIMENSION
    {
        NV_SRRV_DIMENSION_TEXTURE2D = 4,
        NV_SRRV_DIMENSION_TEXTURE2DARRAY = 5,
    } NV_SRRV_DIMENSION;

    typedef struct _NV_TEX2D_SRRV
    {
        UINT MipSlice;
    } NV_TEX2D_SRRV;

    typedef struct _NV_TEX2D_ARRAY_SRRV
    {
        UINT MipSlice;
        UINT FirstArraySlice;
        UINT ArraySize;
    } NV_TEX2D_ARRAY_SRRV;
#endif // defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__))
    typedef struct _NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC_V1
    {
        NvU32 version;                   //!< (IN) Parameter struct version
        DXGI_FORMAT Format;              //!< (IN) Format of the resource used as Shading Rate Surface. Should be either DXGI_FORMAT_R8_UINT or DXGI_FORMAT_R8_TYPELESS
        NV_SRRV_DIMENSION ViewDimension; //!< (IN) This declares whether the Shading Rate Surface is a simple 2D Texture or Array of 2D Textures
        union
        {
            NV_TEX2D_SRRV Texture2D;
            NV_TEX2D_ARRAY_SRRV Texture2DArray;
        };
    } NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC_V1;

    typedef NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC_V1 NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC;
#define NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC_VER1 MAKE_NVAPI_VERSION(NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC_V1, 1)

#define NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC_VER NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC_VER1


    DECLARE_INTERFACE_(__declspec(uuid("E14BE7F6-8FF5-4F5E-B63A-AD016EB8FBE5")) ID3D11NvShadingRateResourceView_V1, ID3D11View)
    {
        BEGIN_INTERFACE

        // *** IUnknown methods ***
        STDMETHOD(QueryInterface)
        (THIS_ REFIID riid, void **ppv) PURE;
        STDMETHOD_(ULONG, AddRef)
        (THIS) PURE;
        STDMETHOD_(ULONG, Release)
        (THIS) PURE;

        // **** ID3D11View method **/
        // Get Shading Rate Resource used while creating the Shading Rate Resource View
        STDMETHOD_(void, GetResource)
        (THIS_ _Outptr_ ID3D11Resource * *ppResource) PURE;

        // ** ID3D11NvShadingRateResourceView methods ***
        // The descriptor used while creating the Shading Rate Resource View
        STDMETHOD(GetDesc)
        (THIS_ NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC * pDesc) PURE;

        END_INTERFACE
    };

    typedef ID3D11NvShadingRateResourceView_V1 ID3D11NvShadingRateResourceView;
#define ID3D11NvShadingRateResourceView_VER1 MAKE_NVAPI_VERSION(ID3D11NvShadingRateResourceView_V1, 1)

#define ID3D11NvShadingRateResourceView_VER ID3D11NvShadingRateResourceView_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_CreateShadingRateResourceView
    //
    //! DESCRIPTION: Creates Shading Rate Resource View by taking ID3D11Resource as an input Shading Rate Surface.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 410
    //!
    //! \param [in]        pDevice                      The device to be used for creating the Shading Rate Resource View
    //! \param [in]        pShadingRateResource         Shading Rate Resource on which the view is to be created.
    //!                                                 \note This should be of format DXGI_FORMAT_R8_UINT or DXGI_FORMAT_R8_TYPELESS
    //!                                                 \note This should be confined to size calculated using render target dimensions,
    //!                                                       NV_VARIABLE_PIXEL_SHADING_TILE_WIDTH and NV_VARIABLE_PIXEL_SHADING_TILE_HEIGHT
    //! \param [in]        pShadingRateDesc             Shading Rate Resource View descriptor
    //! \param [out]       ppShadingRateResourceView    Address of a pointer to ID3D11NvShadingRateResourceView for returning the newly created Shading Rate Resource View
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_CreateShadingRateResourceView(__in ID3D11Device *pDevice,
                                                              __in ID3D11Resource *pShadingRateResource,
                                                              __in NV_D3D11_SHADING_RATE_RESOURCE_VIEW_DESC *pShadingRateResourceViewDesc,
                                                              __out ID3D11NvShadingRateResourceView **ppShadingRateResourceView);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_RSSetShadingRateResourceView
    //
    //! DESCRIPTION: Sets Shading Rate Resource View
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 410
    //!
    //! \param [in]        pContext                     The device context (ID3D11DeviceContext) used for setting the Shading Rate Resource View
    //! \param [out]       pShadingRateResourceView     Shading Rate Resource View to be set
    //!                                                 \note See NvAPI_D3D11_CreateShadingRateResourceView
    //!                                                 \note Passing this as null will reset Shading Rate Resource View to defaults
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_RSSetShadingRateResourceView(__in IUnknown *pContext,
                                                             __in ID3D11NvShadingRateResourceView *pShadingRateResourceView);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))
    //! \ingroup dx
    //! See NvAPI_D3D11_RSGetPixelShadingRateSampleOrder
    //! See NvAPI_D3D11_RSSetPixelShadingRateSampleOrder

    // X, Y = sample position. S = sample number.
    // The inner-most dimension is the sample number, followed by X and Y.

    typedef struct _NV_PIXEL_SRSO_1x2
    {
        struct NV_PIXEL_SRSO_1x2_X1
        {
            NvU8 Y[2];
        } X1;
        struct NV_PIXEL_SRSO_1x2_X2
        {
            NvU8 YS[2][2];
        } X2;
        struct NV_PIXEL_SRSO_1x2_X4
        {
            NvU8 YS[2][4];
        } X4;
        struct NV_PIXEL_SRSO_1x2_X8
        {
            NvU8 YS[2][8];
        } X8;
    } NV_PIXEL_SRSO_1x2;

    typedef struct _NV_PIXEL_SRSO_2x1
    {
        struct NV_PIXEL_SRSO_2x1_X1
        {
            NvU8 X[2];
        } X1;
        struct NV_PIXEL_SRSO_2x1_X2
        {
            NvU8 XS[2][2];
        } X2;
        struct NV_PIXEL_SRSO_2x1_X4
        {
            NvU8 XS[2][4];
        } X4;
    } NV_PIXEL_SRSO_2x1;

    typedef struct _NV_PIXEL_SRSO_2x2
    {
        struct NV_PIXEL_SRSO_2x2_X1
        {
            NvU8 YX[2][2];
        } X1;
        struct NV_PIXEL_SRSO_2x2_X2
        {
            NvU8 YXS[2][2][2];
        } X2;
        struct NV_PIXEL_SRSO_2x2_X4
        {
            NvU8 YXS[2][2][4];
        } X4;
    } NV_PIXEL_SRSO_2x2;

    typedef struct _NV_PIXEL_SRSO_2x4
    {
        struct NV_PIXEL_SRSO_2x4_X1
        {
            NvU8 YX[4][2];
        } X1;
        struct NV_PIXEL_SRSO_2x4_X2
        {
            NvU8 YXS[4][2][2];
        } X2;
    } NV_PIXEL_SRSO_2x4;

    typedef struct _NV_PIXEL_SRSO_4x2
    {
        struct NV_PIXEL_SRSO_4x2_X1
        {
            NvU8 YX[2][4];
        } X1;
    } NV_PIXEL_SRSO_4x2;

    typedef struct _NV_PIXEL_SRSO_4x4
    {
        struct NV_PIXEL_SRSO_4x4_X1
        {
            NvU8 YX[4][4];
        } X1;
    } NV_PIXEL_SRSO_4x4;

    typedef struct _NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE_V1
    {
        NvU32 version;
        NV_PIXEL_SRSO_1x2 Pixel_1x2;
        NV_PIXEL_SRSO_2x1 Pixel_2x1;
        NV_PIXEL_SRSO_2x2 Pixel_2x2;
        NV_PIXEL_SRSO_2x4 Pixel_2x4;
        NV_PIXEL_SRSO_4x2 Pixel_4x2;
        NV_PIXEL_SRSO_4x4 Pixel_4x4;
    } NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE_V1;

    typedef NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE_V1 NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE;
#define NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE_VER1 MAKE_NVAPI_VERSION(NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE_V1, 1)

#define NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE_VER NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE_VER1


#endif // defined(__cplusplus) && (defined(__d3d11_h__) || defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_RSGetPixelShadingRateSampleOrder
    //
    //! DESCRIPTION: Get the Sample Order for Variable Shading Rate
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 410
    //!
    //! \param [in]        pContext                     The device context (ID3D11DeviceContext) used for getting the Shading Rate Sample Order
    //! \param [out]       pSampleOrderTable            A pointer to NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE where the current Sample Order for Variable Pixel Rate Shading that is returned
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_RSGetPixelShadingRateSampleOrder(__in IUnknown *pContext,
                                                                 __out NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE *pSampleOrderTable);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

#if defined(__cplusplus) && (defined(__d3d11_h__))

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D11_RSSetPixelShadingRateSampleOrder
    //
    //! DESCRIPTION: Set the Sample Order for Variable Shading Rate
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 410
    //!
    //! \param [in]        pContext                     The device context (ID3D11DeviceContext) used for setting the Shading Rate Sample Order
    //! \param [out]       pSampleOrderTable            Sample Order for Variable Shading Rate to be set
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D11_RSSetPixelShadingRateSampleOrder(__in IUnknown *pContext,
                                                                 __in NV_PIXEL_SHADING_RATE_SAMPLE_ORDER_TABLE *pSampleOrderTable);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && (defined(__d3d11_h__))
    typedef struct _NV_VRS_HELPER_LATCH_GAZE_PARAMS_V1
    {
        NvU32 version; //!< (IN) Struct version
        NvU32 flags;   //!< (IN) Reserved for future use
    } NV_VRS_HELPER_LATCH_GAZE_PARAMS_V1;

    typedef NV_VRS_HELPER_LATCH_GAZE_PARAMS_V1 NV_VRS_HELPER_LATCH_GAZE_PARAMS;
#define NV_VRS_HELPER_LATCH_GAZE_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_VRS_HELPER_LATCH_GAZE_PARAMS_V1, 1)

#define NV_VRS_HELPER_LATCH_GAZE_PARAMS_VER NV_VRS_HELPER_LATCH_GAZE_PARAMS_VER1


    typedef enum _NV_VRS_CONTENT_TYPE
    {
        NV_VRS_CONTENT_TYPE_INVALID = 0x0,
        NV_VRS_CONTENT_TYPE_FOVEATED_RENDERING = 0x1,
        NV_VRS_CONTENT_TYPE_MAX = NV_VRS_CONTENT_TYPE_FOVEATED_RENDERING
    } NV_VRS_CONTENT_TYPE;

    typedef enum _NV_FOVEATED_RENDERING_SHADING_RATE_PRESET
    {
        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_INVALID = 0,
        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_HIGHEST_PERFORMANCE = 1,
        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_HIGH_PERFORMANCE = 2,
        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_BALANCED = 3,
        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_HIGH_QUALITY = 4,
        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_HIGHEST_QUALITY = 5,
        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_CUSTOM = 6,
        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_MAX = NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_CUSTOM
    } NV_FOVEATED_RENDERING_SHADING_RATE_PRESET;

    typedef struct _NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC_V1
    {
        NvU32 version;

        NV_PIXEL_SHADING_RATE InnerMostRegionShadingRate;  //!< (IN) Shading Rate for the inner-most region of the foveated rendering pattern
        NV_PIXEL_SHADING_RATE MiddleRegionShadingRate;     //!< (IN) Shading Rate for the middle region of the foveated rendering pattern
        NV_PIXEL_SHADING_RATE PeripheralRegionShadingRate; //!< (IN) Shading Rate for the peripheral region of the foveated rendering pattern
    } NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC_V1;

    typedef NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC_V1 NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC;
#define NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC_VER1 MAKE_NVAPI_VERSION(NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC_V1, 1)

#define NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC_VER NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC_VER1


    typedef enum _NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET
    {
        NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET_INVALID = 0,
        NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET_WIDE = 1,
        NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET_BALANCED = 2,
        NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET_NARROW = 3,
        NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET_CUSTOM = 4,
        NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET_MAX = NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET_CUSTOM
    } NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET;

    typedef struct _NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC_V1
    {
        NvU32 version;

        float fInnermostRadii[2];  //!< (IN) Horizontal and vertical radius for the inner-most region of the foveated rendering pattern
        float fMiddleRadii[2];     //!< (IN) Horizontal and vertical radius for the middle region of the foveated rendering pattern
        float fPeripheralRadii[2]; //!< (IN) Horizontal and vertical radius for the peripheral region of the foveated rendering pattern
    } NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC_V1;

    typedef NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC_V1 NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC;
#define NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC_VER1 MAKE_NVAPI_VERSION(NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC_V1, 1)

#define NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC_VER NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC_VER1


    typedef struct _NV_FOVEATED_RENDERING_DESC_V1
    {
        NvU32 version; //!< (IN) Struct version
        NvU32 flags;   //!< (IN) Reserved for future use

        NV_FOVEATED_RENDERING_SHADING_RATE_PRESET ShadingRatePreset;                          //!< (IN) Preset of the shading rate
        NV_FOVEATED_RENDERING_CUSTOM_SHADING_RATE_PRESET_DESC_V1 ShadingRateCustomPresetDesc; //!< (IN) To be provided only if ShadingRatePreset is NV_FOVEATED_RENDERING_SHADING_RATE_PRESET_CUSTOM

        NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET FoveationPatternPreset;                          //!< (IN) Preset of the foveation pattern
        NV_FOVEATED_RENDERING_CUSTOM_FOVEATION_PATTERN_PRESET_DESC_V1 FoveationPatternCustomPresetDesc; //!< (IN) To be provided only if FoveationPatternPreset is NV_FOVEATED_RENDERING_FOVEATION_PATTERN_PRESET_CUSTOM

        NvU32 GazeDataDeviceId; //!< (IN) ID of the gaze data provider. Needed only for supporting more than one device with eye tracking.
                                //        Should be 0 if gaze data is provided only from a single device. Should be less than (MAX_NUMBER_OF_GAZE_DATA_PROVIDERS - 1)

    } NV_FOVEATED_RENDERING_DESC_V1;

    typedef NV_FOVEATED_RENDERING_DESC_V1 NV_FOVEATED_RENDERING_DESC;
#define NV_FOVEATED_RENDERING_DESC_VER1 MAKE_NVAPI_VERSION(NV_FOVEATED_RENDERING_DESC_V1, 1)

#define NV_FOVEATED_RENDERING_DESC_VER NV_FOVEATED_RENDERING_DESC_VER1


    typedef enum _NV_VRS_RENDER_MODE
    {
        NV_VRS_RENDER_MODE_INVALID = 0,
        NV_VRS_RENDER_MODE_MONO = 1,      // States mono rendering on the entire render target
        NV_VRS_RENDER_MODE_LEFT_EYE = 2,  // States Left eye rendering of a stereo pair on the entire render target
        NV_VRS_RENDER_MODE_RIGHT_EYE = 3, // States Right eye rendering of a stereo pair on the entire render target
        NV_VRS_RENDER_MODE_STEREO = 4,    // States side-by-side stereo rendering on the render target
        NV_VRS_RENDER_MODE_MAX = NV_VRS_RENDER_MODE_STEREO
    } NV_VRS_RENDER_MODE;

#define MAX_NUMBER_OF_GAZE_DATA_PROVIDERS 8 // Maximum number of gaze data providers / devices.


    typedef struct _NV_VRS_HELPER_ENABLE_PARAMS_V1
    {
        NvU32 version; //!< (IN) Struct version
        NvU32 flags;   //!< (IN) Reserved for future use

        NV_VRS_RENDER_MODE RenderMode;   //!< (IN) This defines whether subsequent render calls are for mono/stereo
        NV_VRS_CONTENT_TYPE ContentType; //!< (IN) This defines the type of content with which the VRS pattern will be generated

        NV_FOVEATED_RENDERING_DESC_V1 sFoveatedRenderingDesc; //!< (IN) Provide this if ContentType has NV_VRS_CONTENT_TYPE_FOVEATED_RENDERING flag
    } NV_VRS_HELPER_ENABLE_PARAMS_V1;

    typedef NV_VRS_HELPER_ENABLE_PARAMS_V1 NV_VRS_HELPER_ENABLE_PARAMS;
#define NV_VRS_HELPER_ENABLE_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_VRS_HELPER_ENABLE_PARAMS_V1, 1)

#define NV_VRS_HELPER_ENABLE_PARAMS_VER NV_VRS_HELPER_ENABLE_PARAMS_VER1


    typedef struct _NV_VRS_HELPER_DISABLE_PARAMS_V1
    {
        NvU32 version;  //!< (IN) Struct version
        NvU32 reserved; //!< (IN) Reserved for future use
    } NV_VRS_HELPER_DISABLE_PARAMS_V1;

    typedef NV_VRS_HELPER_DISABLE_PARAMS_V1 NV_VRS_HELPER_DISABLE_PARAMS;
#define NV_VRS_HELPER_DISABLE_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_VRS_HELPER_DISABLE_PARAMS_V1, 1)

#define NV_VRS_HELPER_DISABLE_PARAMS_VER NV_VRS_HELPER_DISABLE_PARAMS_VER1


    typedef struct _NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS_V1
    {
        NvU32 version;                                                      //!< (IN)  Struct version
        IUnknown **ppShadingRateResource;                                   //!< (OUT) Pointer to 2D Texture resource with currently applied shading rate pattern
        NV_PIXEL_SHADING_RATE shadingRateTable[NV_MAX_PIXEL_SHADING_RATES]; //!< (OUT) Shading Rate Table filled by the driver
    } NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS_V1;

    typedef NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS_V1 NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS;
#define NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS_V1, 1)

#define NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS_VER NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS_VER1


    typedef struct _NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS_V1
    {
        NvU32 version;  //!< (IN) Struct version
        NvU32 reserved; //!< (IN) Reserved for future use
    } NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS_V1;

    typedef NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS_V1 NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS;
#define NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS_V1, 1)

#define NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS_VER NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS_VER1


    DECLARE_INTERFACE(ID3DNvVRSHelper_V1)
    {
        BEGIN_INTERFACE

        STDMETHOD_(ULONG, AddRef)
        (THIS) PURE;
        STDMETHOD_(ULONG, Release)
        (THIS) PURE;

        // Latches the latest gaze which will be used for subsequent foveated rendering. Recommended to be called once per frame before scene drawing begins.
        STDMETHOD_(NvAPI_Status, LatchGaze)
        (THIS_ IUnknown * pContext, NV_VRS_HELPER_LATCH_GAZE_PARAMS * pLatchGazeParams) PURE;

        // Enables VRS with sepcified content type and preset. This can be called per draw call.
        STDMETHOD_(NvAPI_Status, Enable)
        (THIS_ IUnknown * pContext, NV_VRS_HELPER_ENABLE_PARAMS * pEnableParams) PURE;

        // Disables VRS till re-enabled.
        STDMETHOD_(NvAPI_Status, Disable)
        (THIS_ IUnknown * pContext, NV_VRS_HELPER_DISABLE_PARAMS * pDisableParams) PURE;

        // Creates a 2D texture, copies the current shading rate pattern on it and returns the pointer to this texture.
        // It also returns an array that conveys which value in the shading rate resource corresponds to which exact pixel shading rate.
        STDMETHOD_(NvAPI_Status, GetShadingRateResource)
        (THIS_ IUnknown * pContext, NV_VRS_HELPER_GET_SHADING_RATE_RESOURCE_PARAMS * pGetShadingRateResourceParams) PURE;

        // Destroys all internally created shading rate resources and views.
        STDMETHOD_(NvAPI_Status, PurgeInternalShadingRateResources)
        (THIS_ IUnknown * pContext, NV_VRS_HELPER_PURGE_INTERNAL_RESOURCES_PARAMS * pPurgeParams) PURE;

        END_INTERFACE
    };

    typedef ID3DNvVRSHelper_V1 ID3DNvVRSHelper;
#define ID3DNvVRSHelper_VER1 MAKE_NVAPI_VERSION(ID3DNvVRSHelper_V1, 1)

#define ID3DNvVRSHelper_VER ID3DNvVRSHelper_VER1


    typedef struct _NV_VRS_HELPER_INIT_PARAMS_V1
    {
        NvU32 version; //!< (IN) Struct version
        NvU32 flags;   //!< (IN) Reserved for future use

        ID3DNvVRSHelper_V1 **ppVRSHelper; //!< (OUT) Interface for Shading Rate Pattern Tracker
    } NV_VRS_HELPER_INIT_PARAMS_V1;

    typedef NV_VRS_HELPER_INIT_PARAMS_V1 NV_VRS_HELPER_INIT_PARAMS;
#define NV_VRS_HELPER_INIT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_VRS_HELPER_INIT_PARAMS_V1, 1)

#define NV_VRS_HELPER_INIT_PARAMS_VER NV_VRS_HELPER_INIT_PARAMS_VER1


    //! SUPPORTED OS:  Windows 7 and higher
    //!
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_InitializeVRSHelper
    //
    //! DESCRIPTION: Creates an interface for updating, enabling and disabling internally tracked shading rate pattern for Variable Rate Shading
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 430
    //!
    //! \param [in]        pDevice                              The device to be used for creating the VRS Handler interface
    //!                                                         \note This should be same the device used for Gaze Handler. See also: NvAPI_D3D_InitializeNvGazeHandler.
    //! \param [in]        pInitializeVRSHelperParams           Descriptor for VRS Helper initialization
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D_InitializeVRSHelper(__in IUnknown *pDevice,
                                                  __inout NV_VRS_HELPER_INIT_PARAMS *pInitializeVRSHelperParams);

    typedef enum _NV_GAZE_DATA_VALIDITY_FLAGS
    {
        NV_GAZE_ORIGIN_VALID = 0x1,
        NV_GAZE_DIRECTION_VALID = 0x2,
        NV_GAZE_LOCATION_VALID = 0x4,
        NV_GAZE_VELOCITY_VALID = 0x8,
        NV_GAZE_PUPIL_DIAMETER_VALID = 0x10,
        NV_GAZE_EYE_OPENNESS_VALID = 0x20,
        NV_GAZE_EYE_SACCADE_DATA_VALID = 0x40
    } NV_GAZE_DATA_VALIDITY_FLAGS;

    typedef struct _NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE
    {
        NvU32 version; //!< (IN) Version of the structure

        NvU32 GazeDataValidityFlags; //!< (IN) To be populated with OR'ing flags from NV_GAZE_DATA_VALIDITY_FLAGS

        float fGazeOrigin_mm[3];          //!< (IN) Use flag NV_GAZE_ORIGIN_VALID. Origin of the eye in millimeters. Used mainly to detect whether Left Eye or Right Eye.
        float fGazeDirection[3];          //!< (IN) Use flag NV_GAZE_DIRECTION_VALID. Normalized direction of the gaze of the eye. Used for calculating the gaze location using the FOV.
        float fGazeNormalizedLocation[2]; //!< (IN) Use flag NV_GAZE_LOCATION_VALID. Precalculated normalized gaze location in limits (-1 to +1) for X and Y. Center of the screen denotes (0, 0). If this is valid, this will be given higher priority than direction.
        float fGazeVelocity[2];           //!< (IN) Use flag NV_GAZE_VELOCITY_VALID. Optional: Velocity of the eye on the normalized space in each direction. Central foveated region would be skewed in the direction of the velocity.
        float fPupilDiameter_mm;          //!< (IN) Use flag NV_GAZE_PUPIL_DIAMETER_VALID. Unused at the moment.
        float fEyeOpenness;               //!< (IN) Use flag NV_GAZE_EYE_OPENNESS_VALID. Unused at the moment.
        BOOL bInSaccade;                  //!< (IN) Use flag NV_GAZE_EYE_SACCADE_DATA_VALID. Denotes whether eye is currently in saccade movement or not.
    } NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_V1;

    typedef NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_V1 NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE;
#define NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_VER1 MAKE_NVAPI_VERSION(NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_V1, 1)

#define NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_VER NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_VER1


    typedef struct _NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS
    {
        NvU32 version; //!< (IN) Struct version
        NvU32 flags;   //!< (IN) Reserved for future use

        NvU64 Timestamp; //!< (IN) Timestamp at which the gaze data has been captured. Should be larger than timestamp provided at previous update.
        union
        {
            NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_V1 sMonoData; //!< (IN) Gaze data for Mono rendering mode
            struct
            {
                NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_V1 sLeftEye;  //!< (IN) Gaze data for Left Eye of Stereo rendering mode
                NV_FOVEATED_RENDERING_GAZE_DATA_PER_EYE_V1 sRightEye; //!< (IN) Gaze data for Right Eye of Stereo rendering mode
            } sStereoData;
        };
    } NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS_V1;

    typedef NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS_V1 NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS;
#define NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS_V1, 1)

#define NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS_VER NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS_VER1


    DECLARE_INTERFACE(ID3DNvGazeHandler_V2)
    {
        BEGIN_INTERFACE

        STDMETHOD_(ULONG, AddRef)
        (THIS) PURE;
        STDMETHOD_(ULONG, Release)
        (THIS) PURE;

        // Updates the gaze data for foveated rendering
        STDMETHOD_(NvAPI_Status, UpdateGazeData)
        (THIS_ IUnknown * pContext, NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS * pUpdateGazeDataParams) PURE;

        END_INTERFACE
    };
    typedef ID3DNvGazeHandler_V2 ID3DNvGazeHandler;
#define ID3DNvGazeHandler_VER2 MAKE_NVAPI_VERSION(ID3DNvGazeHandler_V2, 2)

#define ID3DNvGazeHandler_VER ID3DNvGazeHandler_VER2


    DECLARE_INTERFACE(ID3DNvGazeHandler_V1)
    {
        BEGIN_INTERFACE

        STDMETHOD_(ULONG, AddRef)
        (THIS) PURE;
        STDMETHOD_(ULONG, Release)
        (THIS) PURE;

        // Updates the gaze data for foveated rendering
        STDMETHOD_(NvAPI_Status, UpdateGazeData)
        (THIS_ IUnknown * pContext, NV_FOVEATED_RENDERING_UPDATE_GAZE_DATA_PARAMS * pUpdateGazeDataParams) PURE;

        END_INTERFACE
    };
#define ID3DNvGazeHandler_VER1 MAKE_NVAPI_VERSION(ID3DNvGazeHandler_V1, 1)

#ifndef ID3DNvGazeHandler_VER
    typedef ID3DNvGazeHandler_V1 ID3DNvGazeHandler;
#define ID3DNvGazeHandler_VER ID3DNvGazeHandler_VER1

#endif

    typedef enum _NV_GAZE_DATA_TYPE
    {
        NV_GAZE_DATA_INVALID = 0,
        NV_GAZE_DATA_MONO = 1,
        NV_GAZE_DATA_STEREO = 2,
        NV_GAZE_DATA_MAX = NV_GAZE_DATA_STEREO
    } NV_GAZE_DATA_TYPE;

    typedef struct _NV_GAZE_HANDLER_INIT_PARAMS_V2
    {
        NvU32 version; //!< (IN) Struct version

        NvU32 GazeDataDeviceId; //!< (IN) ID of the gaze data provider. Needed only for supporting more than one device with eye tracking.
                                //        Should be 0 if gaze data is provided only from a single device. Should be less than (MAX_NUMBER_OF_GAZE_DATA_PROVIDERS - 1)

        NV_GAZE_DATA_TYPE GazeDataType; //!< (IN) Describes whether gaze is Mono or Stereo
        NvU32 flags;                    //!< (IN) Reserved for future use
        float fHorizontalFOV;           //!< (IN) Horizontal Field of View
        float fVericalFOV;              //!< (IN) Vertical Field of View

        ID3DNvGazeHandler_V2 **ppNvGazeHandler; //!< (OUT) Interface for Gaze Data Handler
    } NV_GAZE_HANDLER_INIT_PARAMS_V2;

    typedef NV_GAZE_HANDLER_INIT_PARAMS_V2 NV_GAZE_HANDLER_INIT_PARAMS;
#define NV_GAZE_HANDLER_INIT_PARAMS_VER2 MAKE_NVAPI_VERSION(NV_GAZE_HANDLER_INIT_PARAMS_V2, 2)

#define NV_GAZE_HANDLER_INIT_PARAMS_VER NV_GAZE_HANDLER_INIT_PARAMS_VER2


    typedef struct _NV_GAZE_HANDLER_INIT_PARAMS_V1
    {
        NvU32 version; //!< (IN) Struct version

        NvU32 GazeDataDeviceId; //!< (IN) ID of the gaze data provider. Needed only for supporting more than one device with eye tracking.
                                //        Should be 0 if gaze data is provided only from a single device. Should be less than (MAX_NUMBER_OF_GAZE_DATA_PROVIDERS - 1)

        NV_GAZE_DATA_TYPE GazeDataType; //!< (IN) Describes whether gaze is Mono or Stereo
        NvU32 flags;                    //!< (IN) Reserved for future use
        float fHorizontalFOV;           //!< (IN) Horizontal Field of View
        float fVericalFOV;              //!< (IN) Vertical Field of View

        ID3DNvGazeHandler_V1 **ppNvGazeHandler; //!< (OUT) Interface for Gaze Data Handler
    } NV_GAZE_HANDLER_INIT_PARAMS_V1;

#define NV_GAZE_HANDLER_INIT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_GAZE_HANDLER_INIT_PARAMS_V1, 1)

#ifndef NV_GAZE_HANDLER_INIT_PARAMS_VER
    typedef NV_GAZE_HANDLER_INIT_PARAMS_V1 NV_GAZE_HANDLER_INIT_PARAMS;
#define NV_GAZE_HANDLER_INIT_PARAMS_VER NV_GAZE_HANDLER_INIT_PARAMS_VER1

#endif

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

    //! SUPPORTED OS:  Windows 7 and higher
    //!

#if defined(__cplusplus) && (defined(__d3d11_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_InitializeNvGazeHandler
    //
    //! DESCRIPTION: Creates an interface for updating and managing gaze data
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 430
    //!
    //! \param [in]        pDevice                          The device to be used for creating the Gaze Handler interface
    //!                                                     \note This should be same as the device used with VRS Handler. See also: NvAPI_D3D_InitializeVRSHelper.
    //! \param [in]        pInitializeNvGazeHandlerParams   Descriptor for Gaze Data Handler initialization
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!         (none)
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////

    NVAPI_INTERFACE NvAPI_D3D_InitializeNvGazeHandler(__in IUnknown *pDevice,
                                                      __inout NV_GAZE_HANDLER_INIT_PARAMS *pInitializeNvGazeHandlerParams);

#endif // defined(__cplusplus) && (defined(__d3d11_h__))

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)

    //! \ingroup dx

    typedef enum NV_SMP_ASSIST_TYPE
    {
        NV_SMP_ASSIST_NONE = 0,
        NV_SMP_ASSIST_MRS = 1, // SMP Assist required for Multi-Res Shading
        NV_SMP_ASSIST_LMS = 2, // SMP Assist required for Lens Matched Shading
        NV_SMP_ASSIST_NUM_TYPES
    } NV_SMP_ASSIST_TYPE;

    typedef enum NV_SMP_ASSIST_LEVEL
    {
        NV_SMP_ASSIST_LEVEL_FULL = 0,    // Full assistance. App selects a pre-baked MRS/LMS config, driver handles correct setting of viewport, scissors and FastGS
        NV_SMP_ASSIST_LEVEL_PARTIAL = 1, // Partial assistance. App provides a custom MRS/LMS config, driver handles correct setting of viewport, scissors and FastGS
        NV_SMP_ASSIST_LEVEL_MINIMAL = 2, // Minimal assistance. App provides viewports and scissors. App sets FastGS as required. App sets LMS params as required (NvAPI_D3D_SetModifiedWMode). App provides SMPType as NONE. Driver handles correct setting of viewports and scissors.
        NV_SMP_ASSIST_NUM_LEVELS
    } NV_SMP_ASSIST_LEVEL;

    typedef enum NV_MRS_CONFIG
    {
        NV_MRS_CONFIG_BALANCED = 0,
        NV_MRS_CONFIG_AGGRESSIVE = 1,
        NV_MRS_CONFIG_OCULUSRIFT_CV1_CONSERVATIVE = 2,
        NV_MRS_CONFIG_OCULUSRIFT_CV1_BALANCED = 3,
        NV_MRS_CONFIG_OCULUSRIFT_CV1_AGGRESSIVE = 4,
        NV_MRS_CONFIG_HTC_VIVE_CONSERVATIVE = 5,
        NV_MRS_CONFIG_HTC_VIVE_BALANCED = 6,
        NV_MRS_CONFIG_HTC_VIVE_AGGRESSIVE = 7,
        NV_MRS_NUM_CONFIGS
    } NV_MRS_CONFIG;

    typedef enum NV_LMS_CONFIG
    {
        NV_LMS_CONFIG_OCULUSRIFT_CV1_CONSERVATIVE = 0,
        NV_LMS_CONFIG_OCULUSRIFT_CV1_BALANCED = 1,
        NV_LMS_CONFIG_OCULUSRIFT_CV1_AGGRESSIVE = 2,
        NV_LMS_CONFIG_HTC_VIVE_CONSERVATIVE = 3,
        NV_LMS_CONFIG_HTC_VIVE_BALANCED = 4,
        NV_LMS_CONFIG_HTC_VIVE_AGGRESSIVE = 5,
        NV_LMS_NUM_CONFIGS
    } NV_LMS_CONFIG;

#define NV_SMP_ASSIST_FLAGS_DEFAULT 0x00000000


#define NV_SMP_ASSIST_MAX_VIEWPORTS 16


    typedef struct _NV_MRS_CUSTOM_CONFIG_V1
    {
        float centerWidth; //!< (IN) Size of the central viewport, ranging (0,1], where 1 is full original viewport size
        float centerHeight;
        float centerX; //!< (IN) Location of the central viewport, ranging 0..1, where 0.5 is the center of the screen
        float centerY;
        float densityScaleX[3]; //!< (IN) Pixel density scale factors: how much the linear pixel density is scaled within each row and column (1.0 = full density)
        float densityScaleY[3];
    } NV_MRS_CUSTOM_CONFIG_V1;

    typedef NV_MRS_CUSTOM_CONFIG_V1 NV_MRS_CUSTOM_CONFIG;

    typedef struct _NV_MRS_INSTANCED_STEREO_CONFIG_V1
    {                         //!< (OUT) MRS Instanced stereo config returned by the SMP Assist GetConstants API
        float centerWidth[2]; //!< (OUT) Size of the central viewport, ranging (0,1], where 1 is full original viewport size
        float centerHeight;
        float centerX[2]; //!< (OUT) Location of the central viewport, ranging 0..1, where 0.5 is the center of the screen
        float centerY;
        float densityScaleX[5]; //!< (OUT) Pixel density scale factors: how much the linear pixel density is scaled within each row and column (1.0 = full density)
        float densityScaleY[3];
    } NV_MRS_INSTANCED_STEREO_CONFIG_V1;

    typedef NV_MRS_INSTANCED_STEREO_CONFIG_V1 NV_MRS_INSTANCED_STEREO_CONFIG;

    typedef struct _NV_LMS_CUSTOM_CONFIG_V1
    {
        float warpLeft;  //!< (IN) LMS params to control warping of the 2 left quadrants
        float warpRight; //!< (IN) LMS params to control warping of the 2 right quadrants
        float warpUp;    //!< (IN) LMS params to control warping of the 2 upper quadrants
        float warpDown;  //!< (IN) LMS params to control warping of the 2 lower quadrants

        float relativeSizeLeft;  //!< (IN) LMS params to control the width of the 2 left quandrants relative to the bounding box width
        float relativeSizeRight; //!< (IN) LMS params to control the width of the 2 right quandrants relative to the bounding box width
        float relativeSizeUp;    //!< (IN) LMS params to control the height of the 2 upper quandrants relative to the bounding box height
        float relativeSizeDown;  //!< (IN) LMS params to control the height of the 2 lower quandrants relative to the bounding box height
    } NV_LMS_CUSTOM_CONFIG_V1;

    typedef NV_LMS_CUSTOM_CONFIG_V1 NV_LMS_CUSTOM_CONFIG;

    typedef struct _NV_LMS_INSTANCED_STEREO_CONFIG_V1
    {                                         //!< (OUT) LMS Instanced stereo config returned by the SMP Assist GetConstants API
        NV_LMS_CUSTOM_CONFIG_V1 sLeftConfig;  //!< (OUT) LMS config for the Left eye view
        NV_LMS_CUSTOM_CONFIG_V1 sRightConfig; //!< (OUT) LMS config for the Right eye view
    } NV_LMS_INSTANCED_STEREO_CONFIG_V1;

    typedef NV_LMS_INSTANCED_STEREO_CONFIG_V1 NV_LMS_INSTANCED_STEREO_CONFIG;

    typedef enum _NV_SMP_ASSIST_EYE_INDEX
    {
        NV_SMP_ASSIST_EYE_INDEX_MONO = 0,             // Non-stereo rendering
        NV_SMP_ASSIST_EYE_INDEX_LEFT_EYE = 1,         // Stereo - Rendering left eye
        NV_SMP_ASSIST_EYE_INDEX_RIGHT_EYE = 2,        // Stereo - Rendering right eye
        NV_SMP_ASSIST_EYE_INDEX_INSTANCED_STEREO = 3, // Stereo - Rendering both eyes
    } NV_SMP_ASSIST_EYE_INDEX;

#define NV_SMP_ASSIST_MINIMAL_LEVEL_NUM_EYE_INDICES 4


    typedef struct _NV_CUSTOM_RECTS_V1
    {
        NvU32 numViewports[NV_SMP_ASSIST_MINIMAL_LEVEL_NUM_EYE_INDICES];
        D3D11_VIEWPORT *pViewports[NV_SMP_ASSIST_MINIMAL_LEVEL_NUM_EYE_INDICES]; //!< (IN) Viewports, for each eye index, that should be set when app calls Enable(eyeIndex)
        D3D11_RECT *pScissors[NV_SMP_ASSIST_MINIMAL_LEVEL_NUM_EYE_INDICES];      //!< (IN) Scissors, for each eye index, that should be set when app calls Enable(eyeIndex)
    } NV_CUSTOM_RECTS_V1;

    typedef NV_CUSTOM_RECTS_V1 NV_CUSTOM_RECTS;

    typedef struct _NV_SMP_ASSIST_ENABLE_PARAMS_V1
    {
        NvU32 version;                     //!< (IN) Structure version
        NV_SMP_ASSIST_EYE_INDEX eEyeIndex; //!< (IN) Rendering mode for upcoming draw calls (Mono/Stereo-Left/Stereo-Right/Instanced Stereo)
    } NV_SMP_ASSIST_ENABLE_PARAMS_V1;

    typedef NV_SMP_ASSIST_ENABLE_PARAMS_V1 NV_SMP_ASSIST_ENABLE_PARAMS;
#define NV_SMP_ASSIST_ENABLE_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_SMP_ASSIST_ENABLE_PARAMS_V1, 1)

#define NV_SMP_ASSIST_ENABLE_PARAMS_VER NV_SMP_ASSIST_ENABLE_PARAMS_VER1


    typedef struct _NV_SMP_ASSIST_DISABLE_PARAMS_V1
    {
        NvU32 version;  //!< (IN) Structure version
        NvU32 Reserved; //!< (IN) Unused.
    } NV_SMP_ASSIST_DISABLE_PARAMS_V1;

    typedef NV_SMP_ASSIST_DISABLE_PARAMS_V1 NV_SMP_ASSIST_DISABLE_PARAMS;
#define NV_SMP_ASSIST_DISABLE_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_SMP_ASSIST_DISABLE_PARAMS_V1, 1)

#define NV_SMP_ASSIST_DISABLE_PARAMS_VER NV_SMP_ASSIST_DISABLE_PARAMS_VER1


    // FastGS constant buffer data returned by the GetConstants API.
    // Refer VRWorks SDK's multiprojection_dx app (struct FastGSCBData)
    typedef struct _NV_SMP_ASSIST_FASTGSCBDATA_V1
    {
        float NDCSplitsX[2]; //!< (OUT) FastGS constant buffer data for Multi-Res Shading/ Lens Matched Shading
        float NDCSplitsY[2];
    } NV_SMP_ASSIST_FASTGSCBDATA_V1;

    typedef NV_SMP_ASSIST_FASTGSCBDATA_V1 NV_SMP_ASSIST_FASTGSCBDATA;

    typedef struct _NV_SMP_ASSIST_FASTGSCBDATA_MRS_INSTANCED_STEREO_V1
    {
        float NDCSplitsX[4]; //!< (OUT) FastGS constant buffer data for Multi-Res Shading (Instanced stereo). 2 splits for left eye followed by 2 splits for right eye
        float NDCSplitsY[2];
    } NV_SMP_ASSIST_FASTGSCBDATA_MRS_INSTANCED_STEREO_V1;

    typedef NV_SMP_ASSIST_FASTGSCBDATA_MRS_INSTANCED_STEREO_V1 NV_SMP_ASSIST_FASTGSCBDATA_MRS_INSTANCED_STEREO;

    // Constant buffer data to supply the UV-remapping helper functions
    // Refer VRWorks SDK's multiprojection_dx app (struct RemapCBData)
    typedef struct _NV_SMP_ASSIST_REMAPCBDATA_V1
    {
        //!< (OUT) Constant buffer data to supply the UV-remapping helper functions
        float ClipToWindowSplitsX[2];
        float ClipToWindowSplitsY[2];
        float ClipToWindowX[3][2]; // ClipToWindowX[i][0] is Scale and ClipToWindowX[i][1] is Bias
        float ClipToWindowY[3][2]; // ClipToWindowY[i][0] is Scale and ClipToWindowY[i][1] is Bias
        float ClipToWindowZ[2];    // ClipToWindowZ[0] is Scale and ClipToWindowZ[1] is Bias

        float WindowToClipSplitsX[2];
        float WindowToClipSplitsY[2];
        float WindowToClipX[3][2]; // WindowToClipX[i][0] is Scale and WindowToClipX[i][1] is Bias
        float WindowToClipY[3][2]; // WindowToClipY[i][0] is Scale and WindowToClipY[i][1] is Bias
        float WindowToClipZ[2];    // WindowToClipZ[0] is Scale and WindowToClipZ[1] is Bias

        float BoundingRectOriginX;
        float BoundingRectOriginY;
        float BoundingRectSizeWidth;
        float BoundingRectSizeHeight;
        float BoundingRectSizeInvWidth;
        float BoundingRectSizeInvHeight;

        float Padding[2];
    } NV_SMP_ASSIST_REMAPCBDATA_V1;

    typedef NV_SMP_ASSIST_REMAPCBDATA_V1 NV_SMP_ASSIST_REMAPCBDATA;

    //! SUPPORTED OS:  Windows 7 and higher
    //!

    typedef struct _NV_SMP_ASSIST_GET_CONSTANTS_V3
    {
        NvU32 version;                     //!< (IN) Structure version
        NV_SMP_ASSIST_EYE_INDEX eEyeIndex; //!< (IN) Viewports/scissors/constant buffer data corresponding to the input eEyeIndex will be returned
        NvU32 numViewports;                //!< (OUT) Number of valid viewport entries
        D3D11_VIEWPORT *pViewports;        //!< (OUT) If not NULL, this will contain the viewports computed by driver based on init params
        D3D11_RECT *pScissors;             //!< (OUT) If not NULL, this will contain the scissors computed by the driver based on init params

        NV_SMP_ASSIST_TYPE eSMPAssistType;   //!< (OUT) SMP type provided in Init call
        NV_SMP_ASSIST_LEVEL eSMPAssistLevel; //!< (OUT) SMP Assist level provided in Init call

        union
        {
            NV_MRS_CUSTOM_CONFIG_V1 sMRSConfig; //!< (OUT) If eSMPAssistType is MRS, then MRS config will be populated
            NV_LMS_CUSTOM_CONFIG_V1 sLMSConfig; //!< (OUT) If eSMPAssistType is LMS, then LMS config will be populated
        };

        float projectionSizeWidth;  //!< (OUT) MRS/LMS projection size
        float projectionSizeHeight; //!< (OUT)

        NV_SMP_ASSIST_FASTGSCBDATA_V1 *pFastGSCBData; //!< (OUT) If not NULL, this will contain constant buffer data to supply the FastGS for culling primitives per-viewport
        NV_SMP_ASSIST_REMAPCBDATA_V1 *pRemapCBData;   //!< (OUT) If not NULL, this will contain constant buffer data to supply the UV-remapping helper functions

        D3D11_VIEWPORT boundingViewport; //!< (OUT) If eSMPType is MRS or LMS then this will be a union of the individual viewports populated in pViewports
        D3D11_RECT boundingScissor;      //!< (OUT) If eSMPType is MRS or LMS then this will be a union of the individual scissor rects populated in pScissors

        union
        {
            NV_MRS_INSTANCED_STEREO_CONFIG_V1 sMRS_ISConfig; //!< (OUT) If eSMPAssistType is MRS and eEyeIndex is NV_SMP_ASSIST_EYE_INDEX_INSTANCED_STEREO then MRS Instanced stereo config will be populated
            NV_LMS_INSTANCED_STEREO_CONFIG_V1 sLMS_ISConfig; //!< (OUT) If eSMPAssistType is LMS and eEyeIndex is NV_SMP_ASSIST_EYE_INDEX_INSTANCED_STEREO then LMS Instanced stereo config will be populated
        };

        NV_SMP_ASSIST_FASTGSCBDATA_MRS_INSTANCED_STEREO_V1 *pFastGSCBDataMRS_IS; //!< (OUT) If non-NULL and eSMPAssistType is MRS and eEyeIndex is NV_SMP_ASSIST_EYE_INDEX_INSTANCED_STEREO then MRS Instanced stereo FastGS constant buffer data will be populated
    } NV_SMP_ASSIST_GET_CONSTANTS_V3;

#define NV_SMP_ASSIST_GET_CONSTANTS_VER3 MAKE_NVAPI_VERSION(NV_SMP_ASSIST_GET_CONSTANTS_V3, 3)

    typedef NV_SMP_ASSIST_GET_CONSTANTS_V3 NV_SMP_ASSIST_GET_CONSTANTS;
#define NV_SMP_ASSIST_GET_CONSTANTS_VER NV_SMP_ASSIST_GET_CONSTANTS_VER3


    //! SUPPORTED OS:  Windows 7 and higher
    //!

    typedef struct _NV_SMP_ASSIST_SETUP_PARAMS_V1
    {
        NvU32 version; //!< (IN) Structure version
        union
        {
            NV_MRS_CONFIG eMRSConfig;                 //!< (IN) If eSMPAssistType is MRS and SMP Assist Level is Full then provide MRS config enum
            NV_LMS_CONFIG eLMSConfig;                 //!< (IN) If eSMPAssistType is LMS and SMP Assist Level is Full then provide LMS config enum
            NV_MRS_CUSTOM_CONFIG_V1 sMRSCustomConfig; //!< (IN) If eSMPAssistType is MRS and SMP Assist Level is Partial, then provide MRS config
            NV_LMS_CUSTOM_CONFIG_V1 sLMSCustomConfig; //!< (IN) If eSMPAssistType is LMS and SMP Assist Level is Partial, then provide LMS config
            NV_CUSTOM_RECTS_V1 sCustomRects;          //!< (IN) If SMP Assist Level is Minimal, provide custom viewports and scissor rects for each eye index.
        };

        float resolutionScale;      //!< (IN) A resolution multiplier in the range [0.1, 3.0] if app wants to render at higher resolution
        D3D11_VIEWPORT boundingBox; //!< (IN) Rect on the rendertarget, to place the projection
        float vpOffsets[2];         //!< (IN) Default set to 0. If non-zero, MRS/LMS viewports' TopLeftX and TopLeftY will be
                                    //!<      offset by vpOffsets[0] and vpOffsets[1] respectively.
    } NV_SMP_ASSIST_SETUP_PARAMS_V1;

    typedef NV_SMP_ASSIST_SETUP_PARAMS_V1 NV_SMP_ASSIST_SETUP_PARAMS;
#define NV_SMP_ASSIST_SETUP_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_SMP_ASSIST_SETUP_PARAMS_V1, 1)

#define NV_SMP_ASSIST_SETUP_PARAMS_VER NV_SMP_ASSIST_SETUP_PARAMS_VER1


    typedef struct _NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS_V1
    {
        NvU32 version;                     //!< (IN) Structure version
        NV_SMP_ASSIST_TYPE eSMPAssistType; // Patch instanced stereo shaders (created with packed eye index) with this SMPAssistType (NV_SMP_ASSIST_LMS only)
        float leftCoeffs[4];               // Left eye: outpos.x = dotproduct(outputpos, leftCoeffs) + leftConst
        float leftConst;
        float rightCoeffs[4]; // Right eye: outpos.x = dotproduct(outputpos, rightCoeffs) + rightConst
        float rightConst;
    } NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS_V1;

    typedef NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS_V1 NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS;
#define NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS_V1, 1)

#define NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS_VER NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS_VER1


    //! SUPPORTED OS:  Windows 7 and higher
    //!

    DECLARE_INTERFACE(ID3DNvSMPAssist_V1)
    {
        //////////////////////////////   VER1 methods //////////////////////////////////////////
        // Disable SMP Assist for further Draw calls
        STDMETHOD_(NvAPI_Status, Disable)
        (THIS_ __in IUnknown * pDevContext, __in const NV_SMP_ASSIST_DISABLE_PARAMS *psSMPAssistDisableParams) PURE;

        // Enable SMP Assist for further Draw calls. App has to provide the type of rendering done in upcoming Draw calls - Mono/Left eye/Right eye/Instanced Stereo
        STDMETHOD_(NvAPI_Status, Enable)
        (THIS_ __in IUnknown * pDevContext, __in const NV_SMP_ASSIST_ENABLE_PARAMS *psSMPAssistEnableParams) PURE;

        // Get the constants used by the drivers
        STDMETHOD_(NvAPI_Status, GetConstants)
        (THIS_ __inout NV_SMP_ASSIST_GET_CONSTANTS * psSMPAssistGetConstants) PURE;

        // Setup the projections (rects, constant buffer data etc.)
        STDMETHOD_(NvAPI_Status, SetupProjections)
        (THIS_ __in IUnknown * pDevice, __in const NV_SMP_ASSIST_SETUP_PARAMS *psSMPAssistSetupParams) PURE;

        // Update instanced stereo specific data
        STDMETHOD_(NvAPI_Status, UpdateInstancedStereoData)
        (THIS_ __in IUnknown * pDevice, __in const NV_SMP_ASSIST_UPDATE_INSTANCEDSTEREO_DATA_PARAMS *psSMPAssistInstancedStereoParams) PURE;
        //////////////////////////////   end of VER1 methods   //////////////////////////////////////////
    };

    typedef ID3DNvSMPAssist_V1 ID3DNvSMPAssist;
#define ID3DNVSMPASSIST_VER1 MAKE_NVAPI_VERSION(ID3DNvSMPAssist_V1, 1)

#define ID3DNVSMPASSIST_VER ID3DNVSMPASSIST_VER1


    //! SUPPORTED OS:  Windows 7 and higher
    //!

    typedef struct _NV_SMP_ASSIST_INITIALIZE_PARAMS_V1
    {
        NvU32 version;                       //!< (IN) Structure version
        NV_SMP_ASSIST_TYPE eSMPAssistType;   //!< (IN) None/MRS/LMS
        NV_SMP_ASSIST_LEVEL eSMPAssistLevel; //!< (IN) Full/Partial/Minimal
        NvU32 flags;                         //!< (IN) Flags, if any

        ID3DNvSMPAssist **ppD3DNvSMPAssist; //!< (OUT) Interface pointer returned by the Init call. Use for future Enable/Disable etc. calls

    } NV_SMP_ASSIST_INITIALIZE_PARAMS_V1;

#define NV_SMP_ASSIST_INITIALIZE_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_SMP_ASSIST_INITIALIZE_PARAMS_V1, 1)

#ifndef NV_SMP_ASSIST_INITIALIZE_PARAMS_VER
    typedef NV_SMP_ASSIST_INITIALIZE_PARAMS_V1 NV_SMP_ASSIST_INITIALIZE_PARAMS;
#define NV_SMP_ASSIST_INITIALIZE_PARAMS_VER NV_SMP_ASSIST_INITIALIZE_PARAMS_VER1

#endif

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_InitializeSMPAssist
    //
    //! DESCRIPTION: Initialize SMP Assist extension. Take the SMPAssist(MRS/LMS) params from the application.
    //!              Provide the application with a interface pointer for future use.
    //!
    //! \since Release: 396
    //! \param [in]       pDevice                   Pointer to IUnknown (Currently supports ID3D11Device)
    //! \param [inout]    pSMPAssistInitParams      SMP Assist initialization params
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_OK                          Call succeeded.
    //! \retval ::NVAPI_ERROR                       Call failed.
    //! \retval ::NVAPI_INVALID_ARGUMENT            One of the required input arguments was NULL
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_InitializeSMPAssist(__in IUnknown *pDevice, __inout NV_SMP_ASSIST_INITIALIZE_PARAMS *pSMPAssistInitParams);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

//! SUPPORTED OS:  Windows 7 and higher
//!
#if defined(__cplusplus) && defined(__d3d11_h__)
    //! \ingroup dx
    typedef struct _NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS_V1
    {
        NvU32 version;                       //!< (IN) Structure version
        NV_SMP_ASSIST_TYPE eSMPAssistType;   //!< (IN) None/MRS/LMS
        NV_SMP_ASSIST_LEVEL eSMPAssistLevel; //!< (IN) Full/Partial/Minimal
        NvBool bSMPAssistSupported;          //!< (OUT) SMP Assist supported or not
    } NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS_V1;

    typedef NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS_V1 NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS;
#define NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS_V1, 1)

#define NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS_VER NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS_VER1


    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_QuerySMPAssistSupport
    //
    //! DESCRIPTION: Query SMP assist extension support.
    //!
    //! \since Release: 396
    //! \param [in]     pDev                                Pointer to IUnknown (Currently supports ID3D11Device)
    //! \param [out]    pQuerySMPAssistSupportParams        Pointer to a structure returning requested SMP assist support
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //! \retval ::NVAPI_NOT_SUPPORTED                       Requested SMP assist is not supported.
    //! \retval ::NVAPI_OK                                  Call succeeded. Check value of pQuerySMPAssistSupportParams->bSMPAssistSupported
    //! \retval ::NVAPI_INVALID_POINTER                     pDev or pQuerySMPAssistSupportParams was a NULL pointer
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_QuerySMPAssistSupport(__in IUnknown *pDev, __inout NV_QUERY_SMP_ASSIST_SUPPORT_PARAMS *pQuerySMPAssistSupportParams);

#endif // defined(__cplusplus) && defined(__d3d11_h__)

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used to get sleep status
    //! \ingroup dx
    typedef struct _NV_GET_SLEEP_STATUS_PARAMS
    {
        NvU32 version;          //!< (IN) Structure version
        NvBool bLowLatencyMode; //!< (OUT) Is low latency mode enabled?
        NvU8 rsvd[128];         //!< (IN) Reserved. Must be set to 0s.
    } NV_GET_SLEEP_STATUS_PARAMS_V1;

    typedef NV_GET_SLEEP_STATUS_PARAMS_V1 NV_GET_SLEEP_STATUS_PARAMS;
#define NV_GET_SLEEP_STATUS_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_GET_SLEEP_STATUS_PARAMS_V1, 1)

#define NV_GET_SLEEP_STATUS_PARAMS_VER NV_GET_SLEEP_STATUS_PARAMS_VER1


#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_GetSleepStatus
    //
    //!   DESCRIPTION: This function can be used to get the latest sleep status.
    //!   bLowLatencyMode indicates whether low latency mode is currently
    //!   enabled in the driver.
    //!   Note that it may not always reflect the previously requested sleep mode,
    //!   as the feature may not be available on the platform, or the setting has
    //!   been overridden by the control panel, for example.
    //!
    //! \since Release: 455
    //! \param [in] pDev                          The target device.
    //! \param [in] pGetSleepStatusParams         Sleep status params.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_GetSleepStatus(__in IUnknown *pDev, __in NV_GET_SLEEP_STATUS_PARAMS *pGetSleepStatusParams);
#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used to set sleep mode
    //! \ingroup dx
    typedef struct _NV_SET_SLEEP_MODE_PARAMS
    {
        NvU32 version;                //!< (IN) Structure version
        NvBool bLowLatencyMode;       //!< (IN) Low latency mode enable/disable.
        NvBool bLowLatencyBoost;      //!< (IN) Request maximum GPU clock frequency regardless of workload.
        NvU32 minimumIntervalUs;      //!< (IN) Minimum frame interval in microseconds. 0 = no frame rate limit.
        NvBool bUseMarkersToOptimize; //!< (IN) Allow latency markers to be used for runtime optimizations.
        NvU8 rsvd[31];                //!< (IN) Reserved. Must be set to 0s.
    } NV_SET_SLEEP_MODE_PARAMS_V1;

    typedef NV_SET_SLEEP_MODE_PARAMS_V1 NV_SET_SLEEP_MODE_PARAMS;
#define NV_SET_SLEEP_MODE_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_SET_SLEEP_MODE_PARAMS_V1, 1)

#define NV_SET_SLEEP_MODE_PARAMS_VER NV_SET_SLEEP_MODE_PARAMS_VER1


#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_SetSleepMode
    //
    //!   DESCRIPTION: This function can be used to update sleep mode dynamically.
    //!   The settings are not dependent to each other, meaning low latency mode
    //!   can be enabled/disabled regardless of whether minimum interval is set or
    //!   not. The former is to intelligently lower latency without impacting frame
    //!   rate. The later is to limit frame rate (e.g. minimumIntervalUs = 10000
    //!   limits frame rate to 100 FPS). They work well separately and/or together.
    //!   Note that minimumIntervalUs usage is not limited to lowering latency, so
    //!   feel free to use it to limit frame rate for menu, cut scenes, etc.
    //!   Note that low latency mode can be enabled, and/or minimum interval can
    //!   be set, even without using NvAPI_D3D_Sleep(). However, without it, the
    //!   sleep to achieve these features would happen at a less optimal point,
    //!   resulting in higher overall latency.
    //!   The bLowLatencyBoost will request the GPU run at max clocks even in
    //!   scenarios where it is idle most of the frame and would normally try
    //!   to save power.  This can decrease latency in CPU-limited scenarios.
    //!   While this function can be called as often as needed, it is not
    //!   necessary nor recommended to call this too frequently (e.g. every frame),
    //!   as the settings persist for the target device.
    //!
    //! \since Release: 455
    //! \param [in] pDev                          The target device.
    //! \param [in] pSetSleepModeParams           Sleep mode params.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_SetSleepMode(__in IUnknown *pDev, __in NV_SET_SLEEP_MODE_PARAMS *pSetSleepModeParams);
#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))

#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_Sleep
    //
    //!   DESCRIPTION: It is recommended to call this function at the very start of
    //!   each frame (e.g. before input sampling). If there is a need to sleep,
    //!   due to frame rate limit and/or low latency features, for example,
    //!   this call provides an entry point for the driver to sleep at the most
    //!   optimal spot to achieve the lowest latency.
    //!   It is recommended to call this function even when low latency mode is
    //!   disabled and minimum interval is 0. Other features, such as Maximum Frame
    //!   Rate setting, could be enabled in the control panel to benefit from this.
    //!   It is OK to start (or stop) using this function at any time. However,
    //!   when using this function, it must be called exactly once on each frame.
    //!   If this function is not called, after several frames, the driver would
    //!   fallback to sleep at its less optimal spot.
    //!
    //! \since Release: 455
    //! \param [in] pDev                          The target device.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_Sleep(__in IUnknown *pDev);
#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used to get latency report.
    //! \ingroup dx

    typedef struct _NV_LATENCY_RESULT_PARAMS
    {
        NvU32 version; //!< (IN) Structure version
        struct FrameReport
        {
            NvU64 frameID;
            NvU64 inputSampleTime;
            NvU64 simStartTime;
            NvU64 simEndTime;
            NvU64 renderSubmitStartTime;
            NvU64 renderSubmitEndTime;
            NvU64 presentStartTime;
            NvU64 presentEndTime;
            NvU64 driverStartTime;
            NvU64 driverEndTime;
            NvU64 osRenderQueueStartTime;
            NvU64 osRenderQueueEndTime;
            NvU64 gpuRenderStartTime;
            NvU64 gpuRenderEndTime;
            NvU32 gpuActiveRenderTimeUs; //!< (OUT) Difference between gpuRenderStartTime and gpuRenderEndTime, excluding the idles in between, in microseconds.
            NvU32 gpuFrameTimeUs;        //!< (OUT) Difference between previous and current frame's gpuRenderEndTime, in microseconds.
            NvU8 rsvd[120];
        } frameReport[64];
        NvU8 rsvd[32];
    } NV_LATENCY_RESULT_PARAMS_V1;

    typedef NV_LATENCY_RESULT_PARAMS_V1 NV_LATENCY_RESULT_PARAMS;
#define NV_LATENCY_RESULT_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_LATENCY_RESULT_PARAMS_V1, 1)

#define NV_LATENCY_RESULT_PARAMS_VER NV_LATENCY_RESULT_PARAMS_VER1


#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_GetLatency
    //
    //!   DESCRIPTION: Get a latency report including the timestamps of the
    //!   application latency markers set with NvAPI_D3D_SetLatencyMarker as well
    //!   as driver, OS queue and graphics hardware times.  Requires calling
    //!   NvAPI_D3D_SetLatencyMarker with incrementing frameID for valid results.
    //!   Rendering for at least 90 frames is recommended to properly fill out the
    //!   structure.  The newest completed frame is at the end (element 63) and
    //!   is preceeded by older frames.  If not enough frames are valid then all
    //!   frames are returned with all zeroes.
    //!
    //! \since Release: 455
    //! \param [in] pDev                          The target device
    //! \param [in] pGetLatencyParams             The latency result structure.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_GetLatency(__in IUnknown *pDev, __out NV_LATENCY_RESULT_PARAMS *pGetLatencyParams);
#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used define latency marker type
    //! \ingroup dx
    typedef enum
    {
        SIMULATION_START = 0,
        SIMULATION_END = 1,
        RENDERSUBMIT_START = 2,
        RENDERSUBMIT_END = 3,
        PRESENT_START = 4,
        PRESENT_END = 5,
        INPUT_SAMPLE = 6,
        TRIGGER_FLASH = 7,
        PC_LATENCY_PING = 8,
    } NV_LATENCY_MARKER_TYPE;

    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! Used set latency markers
    //! \ingroup dx
    typedef struct _NV_LATENCY_MARKER_PARAMS
    {
        NvU32 version; //!< (IN) Structure version
        NvU64 frameID;
        NV_LATENCY_MARKER_TYPE markerType;
        NvU8 rsvd[64];
    } NV_LATENCY_MARKER_PARAMS_V1;

    typedef NV_LATENCY_MARKER_PARAMS_V1 NV_LATENCY_MARKER_PARAMS;
#define NV_LATENCY_MARKER_PARAMS_VER1 MAKE_NVAPI_VERSION(NV_LATENCY_MARKER_PARAMS_V1, 1)

#define NV_LATENCY_MARKER_PARAMS_VER NV_LATENCY_MARKER_PARAMS_VER1


#if defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D_SetLatencyMarker
    //
    //!   DESCRIPTION: Set a latency marker to be tracked by the
    //!   NvAPI_D3D_GetLatency function. SIMULATION_START must be the first marker
    //!   sent in a frame, after the previous frame's Sleep call (if used).
    //!   INPUT_SAMPLE may be sent to record the moment user input was sampled and
    //!   should come between SIMULATION_START and SIMULATION_END.
    //!   RENDERSUBMIT_START should come before any Direct3D calls are made for
    //!   the given frame and RENDERSUBMIT_END should come before calling Present.
    //!   PRESENT_START and END should wrap the Present call to inform the driver
    //!   of a present block done by the OS before the driver receives the Present.
    //!   TRIGGER_FLASH tells the driver to render its flash indicator for latency
    //!   testing, typically driven by a mouse click.
    //!   The frameID can start at an abitrary moment in the application lifetime
    //!   but must strictly increment from that point forward for consistent results.
    //!
    //! \since Release: 455
    //! \param [in] pDev                          The target device
    //! \param [in] pSetLatencyMarkerParams       The latency marker structure
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API, they are listed below.
    //!
    //! \ingroup dx
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D_SetLatencyMarker(__in IUnknown *pDev, __in NV_LATENCY_MARKER_PARAMS *pSetLatencyMarkerParams);
#endif // defined(__cplusplus) && (defined(_D3D9_H_) || defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__) || defined(__d3d12_h__))

#if defined(__cplusplus) && defined(__d3d12_h__)

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D12_CreateCubinComputeShader(__in ID3D12Device *pDevice,
                                                         __in const void *pCubin,
                                                         __in NvU32 size,
                                                         __in NvU32 blockX,
                                                         __in NvU32 blockY,
                                                         __in NvU32 blockZ,
                                                         __out NVDX_ObjectHandle *phShader);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D12_CreateCubinComputeShaderEx(__in ID3D12Device *pDevice,
                                                           __in const void *pCubin,
                                                           __in NvU32 size,
                                                           __in NvU32 blockX,
                                                           __in NvU32 blockY,
                                                           __in NvU32 blockZ,
                                                           __in NvU32 dynSharedMemBytes,
                                                           __in const char *pShaderName,
                                                           __out NVDX_ObjectHandle *phShader);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D12_CreateCubinComputeShaderWithName(__in ID3D12Device *pDevice,
                                                                 __in const void *pCubin,
                                                                 __in NvU32 size,
                                                                 __in NvU32 blockX,
                                                                 __in NvU32 blockY,
                                                                 __in NvU32 blockZ,
                                                                 __in const char *pShaderName,
                                                                 __out NVDX_ObjectHandle *phShader);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D12_LaunchCubinShader(__in ID3D12GraphicsCommandList *pCommandList,
                                                  __in NVDX_ObjectHandle hShader,
                                                  __in NvU32 gridX,
                                                  __in NvU32 gridY,
                                                  __in NvU32 gridZ,
                                                  __in const void *pParams,
                                                  __in NvU32 paramSize);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D12_DestroyCubinComputeShader(__in ID3D12Device *pDevice,
                                                          __in NVDX_ObjectHandle hShader);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D12_GetCudaTextureObject(__in ID3D12Device *pDevice,
                                                     __in D3D12_CPU_DESCRIPTOR_HANDLE texDesc,
                                                     __in D3D12_CPU_DESCRIPTOR_HANDLE smpDesc,
                                                     __out NvU32 *pTextureHandle);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D12_GetCudaSurfaceObject(__in ID3D12Device *pDevice,
                                                     __in D3D12_CPU_DESCRIPTOR_HANDLE uavDesc,
                                                     __out NvU32 *pSurfaceHandle);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D12_IsFatbinPTXSupported(__in ID3D12Device *pDevice,
                                                     __out bool *pSupported);

#endif // if defined (__cplusplus) && defined(__d3d12_h__)

#if defined(__cplusplus) && defined(__d3d11_h__)

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_CreateCubinComputeShader(__in ID3D11Device *pDevice,
                                                         __in const void *pCubin,
                                                         __in NvU32 size,
                                                         __in NvU32 blockX,
                                                         __in NvU32 blockY,
                                                         __in NvU32 blockZ,
                                                         __out NVDX_ObjectHandle *phShader);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_CreateCubinComputeShaderEx(__in ID3D11Device *pDevice,
                                                           __in const void *pCubin,
                                                           __in NvU32 size,
                                                           __in NvU32 blockX,
                                                           __in NvU32 blockY,
                                                           __in NvU32 blockZ,
                                                           __in NvU32 dynSharedMemBytes,
                                                           __in const char *pShaderName,
                                                           __out NVDX_ObjectHandle *phShader);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_CreateCubinComputeShaderWithName(__in ID3D11Device *pDevice,
                                                                 __in const void *pCubin,
                                                                 __in NvU32 size,
                                                                 __in NvU32 blockX,
                                                                 __in NvU32 blockY,
                                                                 __in NvU32 blockZ,
                                                                 __in const char *pShaderName,
                                                                 __out NVDX_ObjectHandle *phShader);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_LaunchCubinShader(__in ID3D11DeviceContext *pDeviceContext,
                                                  __in NVDX_ObjectHandle hShader,
                                                  __in NvU32 gridX,
                                                  __in NvU32 gridY,
                                                  __in NvU32 gridZ,
                                                  __in const void *pParams,
                                                  __in NvU32 paramSize,
                                                  __in const NVDX_ObjectHandle *pReadResources,
                                                  __in NvU32 numReadResources,
                                                  __in const NVDX_ObjectHandle *pWriteResources,
                                                  __in NvU32 numWriteResources);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_DestroyCubinComputeShader(__in ID3D11Device *pDevice,
                                                          __in NVDX_ObjectHandle hShader);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_IsFatbinPTXSupported(__in ID3D11Device *pDevice,
                                                     __out bool *pSupported);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_CreateUnorderedAccessView(__in ID3D11Device *pDevice,
                                                          __in ID3D11Resource *pResource,
                                                          __in const D3D11_UNORDERED_ACCESS_VIEW_DESC *pDesc,
                                                          __out ID3D11UnorderedAccessView **ppUAV,
                                                          __out NvU32 *pDriverHandle);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_CreateShaderResourceView(__in ID3D11Device *pDevice,
                                                         __in ID3D11Resource *pResource,
                                                         __in const D3D11_SHADER_RESOURCE_VIEW_DESC *pDesc,
                                                         __out ID3D11ShaderResourceView **ppSRV,
                                                         __out NvU32 *pDriverHandle);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_CreateSamplerState(__in ID3D11Device *pDevice,
                                                   __in const D3D11_SAMPLER_DESC *pSamplerDesc,
                                                   __out ID3D11SamplerState **ppSamplerState,
                                                   __out NvU32 *pDriverHandle);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_GetCudaTextureObject(__in ID3D11Device *pDevice,
                                                     __in NvU32 srvDriverHandle,
                                                     __in NvU32 samplerDriverHandle,
                                                     __out NvU32 *pCudaTextureHandle);

    // Experimental API for internal use. DO NOT USE!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    NVAPI_INTERFACE NvAPI_D3D11_GetResourceGPUVirtualAddress(__in ID3D11Device *pDevice,
                                                             __in const NVDX_ObjectHandle hResource,
                                                             __out NvU64 *pGpuVA);
#endif // defined(__cplusplus) && defined(__d3d11_h__)

    //! \ingroup vidio
    //! Unique identifier for VIO owner (process identifier or NVVIOOWNERID_NONE)
    typedef NvU32 NVVIOOWNERID;

    //! \addtogroup vidio
    //! @{

#define NVVIOOWNERID_NONE 0 //!< Unregistered ownerId


    //! Owner type for device
    typedef enum _NVVIOOWNERTYPE
    {
        NVVIOOWNERTYPE_NONE,        //!<  No owner for the device
        NVVIOOWNERTYPE_APPLICATION, //!<  Application owns the device
        NVVIOOWNERTYPE_DESKTOP,     //!<  Desktop transparent mode owns the device (not applicable for video input)
    } NVVIOOWNERTYPE;

// Access rights for NvAPI_VIO_Open()

//! Read access             (not applicable for video output)
#define NVVIO_O_READ 0x00000000


//! Write exclusive access  (not applicable for video input)
#define NVVIO_O_WRITE_EXCLUSIVE 0x00010001


//!
#define NVVIO_VALID_ACCESSRIGHTS (NVVIO_O_READ | \
                                  NVVIO_O_WRITE_EXCLUSIVE)


//! VIO_DATA.ulOwnerID high-bit is set only if device has been initialized by VIOAPI
//! examined at NvAPI_GetCapabilities|NvAPI_VIO_Open to determine if settings need to be applied from registry or POR state read
#define NVVIO_OWNERID_INITIALIZED 0x80000000


//! VIO_DATA.ulOwnerID next-bit is set only if device is currently in exclusive write access mode from NvAPI_VIO_Open()
#define NVVIO_OWNERID_EXCLUSIVE 0x40000000


//! VIO_DATA.ulOwnerID lower bits are:
//!  NVGVOOWNERTYPE_xxx enumerations indicating use context
#define NVVIO_OWNERID_TYPEMASK 0x0FFFFFFF //!< mask for NVVIOOWNERTYPE_xxx


    //! @}

    //---------------------------------------------------------------------
    // Enumerations
    //---------------------------------------------------------------------

    //! \addtogroup vidio
    //! @{

    //! Video signal format and resolution
    typedef enum _NVVIOSIGNALFORMAT
    {
        NVVIOSIGNALFORMAT_NONE,                     //!< Invalid signal format
        NVVIOSIGNALFORMAT_487I_59_94_SMPTE259_NTSC, //!< 01  487i    59.94Hz  (SMPTE259) NTSC
        NVVIOSIGNALFORMAT_576I_50_00_SMPTE259_PAL,  //!< 02  576i    50.00Hz  (SMPTE259) PAL
        NVVIOSIGNALFORMAT_1035I_60_00_SMPTE260,     //!< 03  1035i   60.00Hz  (SMPTE260)
        NVVIOSIGNALFORMAT_1035I_59_94_SMPTE260,     //!< 04  1035i   59.94Hz  (SMPTE260)
        NVVIOSIGNALFORMAT_1080I_50_00_SMPTE295,     //!< 05  1080i   50.00Hz  (SMPTE295)
        NVVIOSIGNALFORMAT_1080I_60_00_SMPTE274,     //!< 06  1080i   60.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080I_59_94_SMPTE274,     //!< 07  1080i   59.94Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080I_50_00_SMPTE274,     //!< 08  1080i   50.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080P_30_00_SMPTE274,     //!< 09  1080p   30.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080P_29_97_SMPTE274,     //!< 10  1080p   29.97Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080P_25_00_SMPTE274,     //!< 11  1080p   25.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080P_24_00_SMPTE274,     //!< 12  1080p   24.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080P_23_976_SMPTE274,    //!< 13  1080p   23.976Hz (SMPTE274)
        NVVIOSIGNALFORMAT_720P_60_00_SMPTE296,      //!< 14  720p    60.00Hz  (SMPTE296)
        NVVIOSIGNALFORMAT_720P_59_94_SMPTE296,      //!< 15  720p    59.94Hz  (SMPTE296)
        NVVIOSIGNALFORMAT_720P_50_00_SMPTE296,      //!< 16  720p    50.00Hz  (SMPTE296)
        NVVIOSIGNALFORMAT_1080I_48_00_SMPTE274,     //!< 17  1080I   48.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080I_47_96_SMPTE274,     //!< 18  1080I   47.96Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_720P_30_00_SMPTE296,      //!< 19  720p    30.00Hz  (SMPTE296)
        NVVIOSIGNALFORMAT_720P_29_97_SMPTE296,      //!< 20  720p    29.97Hz  (SMPTE296)
        NVVIOSIGNALFORMAT_720P_25_00_SMPTE296,      //!< 21  720p    25.00Hz  (SMPTE296)
        NVVIOSIGNALFORMAT_720P_24_00_SMPTE296,      //!< 22  720p    24.00Hz  (SMPTE296)
        NVVIOSIGNALFORMAT_720P_23_98_SMPTE296,      //!< 23  720p    23.98Hz  (SMPTE296)
        NVVIOSIGNALFORMAT_2048P_30_00_SMPTE372,     //!< 24  2048p   30.00Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048P_29_97_SMPTE372,     //!< 25  2048p   29.97Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048I_60_00_SMPTE372,     //!< 26  2048i   60.00Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048I_59_94_SMPTE372,     //!< 27  2048i   59.94Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048P_25_00_SMPTE372,     //!< 28  2048p   25.00Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048I_50_00_SMPTE372,     //!< 29  2048i   50.00Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048P_24_00_SMPTE372,     //!< 30  2048p   24.00Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048P_23_98_SMPTE372,     //!< 31  2048p   23.98Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048I_48_00_SMPTE372,     //!< 32  2048i   48.00Hz  (SMPTE372)
        NVVIOSIGNALFORMAT_2048I_47_96_SMPTE372,     //!< 33  2048i   47.96Hz  (SMPTE372)

        NVVIOSIGNALFORMAT_1080PSF_25_00_SMPTE274, //!< 34  1080PsF 25.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080PSF_29_97_SMPTE274, //!< 35  1080PsF 29.97Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080PSF_30_00_SMPTE274, //!< 36  1080PsF 30.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080PSF_24_00_SMPTE274, //!< 37  1080PsF 24.00Hz  (SMPTE274)
        NVVIOSIGNALFORMAT_1080PSF_23_98_SMPTE274, //!< 38  1080PsF 23.98Hz  (SMPTE274)

        NVVIOSIGNALFORMAT_1080P_50_00_SMPTE274_3G_LEVEL_A, //!< 39  1080P   50.00Hz  (SMPTE274) 3G Level A
        NVVIOSIGNALFORMAT_1080P_59_94_SMPTE274_3G_LEVEL_A, //!< 40  1080P   59.94Hz  (SMPTE274) 3G Level A
        NVVIOSIGNALFORMAT_1080P_60_00_SMPTE274_3G_LEVEL_A, //!< 41  1080P   60.00Hz  (SMPTE274) 3G Level A

        NVVIOSIGNALFORMAT_1080P_60_00_SMPTE274_3G_LEVEL_B, //!< 42  1080p   60.00Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_1080I_60_00_SMPTE274_3G_LEVEL_B, //!< 43  1080i   60.00Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048I_60_00_SMPTE372_3G_LEVEL_B, //!< 44  2048i   60.00Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080P_50_00_SMPTE274_3G_LEVEL_B, //!< 45  1080p   50.00Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_1080I_50_00_SMPTE274_3G_LEVEL_B, //!< 46  1080i   50.00Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048I_50_00_SMPTE372_3G_LEVEL_B, //!< 47  2048i   50.00Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080P_30_00_SMPTE274_3G_LEVEL_B, //!< 48  1080p   30.00Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048P_30_00_SMPTE372_3G_LEVEL_B, //!< 49  2048p   30.00Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080P_25_00_SMPTE274_3G_LEVEL_B, //!< 50  1080p   25.00Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048P_25_00_SMPTE372_3G_LEVEL_B, //!< 51  2048p   25.00Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080P_24_00_SMPTE274_3G_LEVEL_B, //!< 52  1080p   24.00Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048P_24_00_SMPTE372_3G_LEVEL_B, //!< 53  2048p   24.00Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080I_48_00_SMPTE274_3G_LEVEL_B, //!< 54  1080i   48.00Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048I_48_00_SMPTE372_3G_LEVEL_B, //!< 55  2048i   48.00Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080P_59_94_SMPTE274_3G_LEVEL_B, //!< 56  1080p   59.94Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_1080I_59_94_SMPTE274_3G_LEVEL_B, //!< 57  1080i   59.94Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048I_59_94_SMPTE372_3G_LEVEL_B, //!< 58  2048i   59.94Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080P_29_97_SMPTE274_3G_LEVEL_B, //!< 59  1080p   29.97Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048P_29_97_SMPTE372_3G_LEVEL_B, //!< 60  2048p   29.97Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080P_23_98_SMPTE274_3G_LEVEL_B, //!< 61  1080p   29.98Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048P_23_98_SMPTE372_3G_LEVEL_B, //!< 62  2048p   29.98Hz  (SMPTE372) 3G Level B
        NVVIOSIGNALFORMAT_1080I_47_96_SMPTE274_3G_LEVEL_B, //!< 63  1080i   47.96Hz  (SMPTE274) 3G Level B
        NVVIOSIGNALFORMAT_2048I_47_96_SMPTE372_3G_LEVEL_B, //!< 64  2048i   47.96Hz  (SMPTE372) 3G Level B

        NVVIOSIGNALFORMAT_END //!< 65  To indicate end of signal format list

    } NVVIOSIGNALFORMAT;

    //! SMPTE standards format
    typedef enum _NVVIOVIDEOSTANDARD
    {
        NVVIOVIDEOSTANDARD_SMPTE259, //!< SMPTE259
        NVVIOVIDEOSTANDARD_SMPTE260, //!< SMPTE260
        NVVIOVIDEOSTANDARD_SMPTE274, //!< SMPTE274
        NVVIOVIDEOSTANDARD_SMPTE295, //!< SMPTE295
        NVVIOVIDEOSTANDARD_SMPTE296, //!< SMPTE296
        NVVIOVIDEOSTANDARD_SMPTE372, //!< SMPTE372
    } NVVIOVIDEOSTANDARD;

    //! HD or SD video type
    typedef enum _NVVIOVIDEOTYPE
    {
        NVVIOVIDEOTYPE_SD, //!< Standard-definition (SD)
        NVVIOVIDEOTYPE_HD, //!< High-definition     (HD)
    } NVVIOVIDEOTYPE;

    //! Interlace mode
    typedef enum _NVVIOINTERLACEMODE
    {
        NVVIOINTERLACEMODE_PROGRESSIVE, //!< Progressive               (p)
        NVVIOINTERLACEMODE_INTERLACE,   //!< Interlace                 (i)
        NVVIOINTERLACEMODE_PSF,         //!< Progressive Segment Frame (psf)
    } NVVIOINTERLACEMODE;

    //! Video data format
    typedef enum _NVVIODATAFORMAT
    {
        NVVIODATAFORMAT_UNKNOWN = -1,                     //!< Invalid DataFormat
        NVVIODATAFORMAT_R8G8B8_TO_YCRCB444,               //!< R8:G8:B8                => YCrCb  (4:4:4)
        NVVIODATAFORMAT_R8G8B8A8_TO_YCRCBA4444,           //!< R8:G8:B8:A8             => YCrCbA (4:4:4:4)
        NVVIODATAFORMAT_R8G8B8Z10_TO_YCRCBZ4444,          //!< R8:G8:B8:Z10            => YCrCbZ (4:4:4:4)
        NVVIODATAFORMAT_R8G8B8_TO_YCRCB422,               //!< R8:G8:B8                => YCrCb  (4:2:2)
        NVVIODATAFORMAT_R8G8B8A8_TO_YCRCBA4224,           //!< R8:G8:B8:A8             => YCrCbA (4:2:2:4)
        NVVIODATAFORMAT_R8G8B8Z10_TO_YCRCBZ4224,          //!< R8:G8:B8:Z10            => YCrCbZ (4:2:2:4)
        NVVIODATAFORMAT_X8X8X8_444_PASSTHRU,              //!< R8:G8:B8                => RGB    (4:4:4)
        NVVIODATAFORMAT_X8X8X8A8_4444_PASSTHRU,           //!< R8:G8:B8:A8             => RGBA   (4:4:4:4)
        NVVIODATAFORMAT_X8X8X8Z10_4444_PASSTHRU,          //!< R8:G8:B8:Z10            => RGBZ   (4:4:4:4)
        NVVIODATAFORMAT_X10X10X10_444_PASSTHRU,           //!< Y10:CR10:CB10           => YCrCb  (4:4:4)
        NVVIODATAFORMAT_X10X8X8_444_PASSTHRU,             //!< Y10:CR8:CB8             => YCrCb  (4:4:4)
        NVVIODATAFORMAT_X10X8X8A10_4444_PASSTHRU,         //!< Y10:CR8:CB8:A10         => YCrCbA (4:4:4:4)
        NVVIODATAFORMAT_X10X8X8Z10_4444_PASSTHRU,         //!< Y10:CR8:CB8:Z10         => YCrCbZ (4:4:4:4)
        NVVIODATAFORMAT_DUAL_R8G8B8_TO_DUAL_YCRCB422,     //!< R8:G8:B8 + R8:G8:B8     => YCrCb  (4:2:2 + 4:2:2)
        NVVIODATAFORMAT_DUAL_X8X8X8_TO_DUAL_422_PASSTHRU, //!< Y8:CR8:CB8 + Y8:CR8:CB8 => YCrCb  (4:2:2 + 4:2:2)
        NVVIODATAFORMAT_R10G10B10_TO_YCRCB422,            //!< R10:G10:B10             => YCrCb  (4:2:2)
        NVVIODATAFORMAT_R10G10B10_TO_YCRCB444,            //!< R10:G10:B10             => YCrCb  (4:4:4)
        NVVIODATAFORMAT_X12X12X12_444_PASSTHRU,           //!< X12:X12:X12             => XXX    (4:4:4)
        NVVIODATAFORMAT_X12X12X12_422_PASSTHRU,           //!< X12:X12:X12             => XXX    (4:2:2)
        NVVIODATAFORMAT_Y10CR10CB10_TO_YCRCB422,          //!< Y10:CR10:CB10           => YCrCb  (4:2:2)
        NVVIODATAFORMAT_Y8CR8CB8_TO_YCRCB422,             //!< Y8:CR8:CB8              => YCrCb  (4:2:2)
        NVVIODATAFORMAT_Y10CR8CB8A10_TO_YCRCBA4224,       //!< Y10:CR8:CB8:A10         => YCrCbA (4:2:2:4)
        NVVIODATAFORMAT_R10G10B10_TO_RGB444,              //!< R10:G10:B10             => RGB    (4:4:4)
        NVVIODATAFORMAT_R12G12B12_TO_YCRCB444,            //!< R12:G12:B12             => YCrCb  (4:4:4)
        NVVIODATAFORMAT_R12G12B12_TO_YCRCB422,            //!< R12:G12:B12             => YCrCb  (4:2:2)
    } NVVIODATAFORMAT;

    //! Video output area
    typedef enum _NVVIOOUTPUTAREA
    {
        NVVIOOUTPUTAREA_FULLSIZE,   //!< Output to entire video resolution (full size)
        NVVIOOUTPUTAREA_SAFEACTION, //!< Output to centered 90% of video resolution (safe action)
        NVVIOOUTPUTAREA_SAFETITLE,  //!< Output to centered 80% of video resolution (safe title)
    } NVVIOOUTPUTAREA;

    //! Synchronization source
    typedef enum _NVVIOSYNCSOURCE
    {
        NVVIOSYNCSOURCE_SDISYNC,  //!< SDI Sync  (Digital input)
        NVVIOSYNCSOURCE_COMPSYNC, //!< COMP Sync (Composite input)
    } NVVIOSYNCSOURCE;

    //! Composite synchronization type
    typedef enum _NVVIOCOMPSYNCTYPE
    {
        NVVIOCOMPSYNCTYPE_AUTO,     //!< Auto-detect
        NVVIOCOMPSYNCTYPE_BILEVEL,  //!< Bi-level signal
        NVVIOCOMPSYNCTYPE_TRILEVEL, //!< Tri-level signal
    } NVVIOCOMPSYNCTYPE;

    //! Video input output status
    typedef enum _NVVIOINPUTOUTPUTSTATUS
    {
        NVINPUTOUTPUTSTATUS_OFF,    //!< Not in use
        NVINPUTOUTPUTSTATUS_ERROR,  //!< Error detected
        NVINPUTOUTPUTSTATUS_SDI_SD, //!< SDI (standard-definition)
        NVINPUTOUTPUTSTATUS_SDI_HD, //!< SDI (high-definition)
    } NVVIOINPUTOUTPUTSTATUS;

    //! Synchronization input status
    typedef enum _NVVIOSYNCSTATUS
    {
        NVVIOSYNCSTATUS_OFF,       //!< Sync not detected
        NVVIOSYNCSTATUS_ERROR,     //!< Error detected
        NVVIOSYNCSTATUS_SYNCLOSS,  //!< Genlock in use, format mismatch with output
        NVVIOSYNCSTATUS_COMPOSITE, //!< Composite sync
        NVVIOSYNCSTATUS_SDI_SD,    //!< SDI sync (standard-definition)
        NVVIOSYNCSTATUS_SDI_HD,    //!< SDI sync (high-definition)
    } NVVIOSYNCSTATUS;

    //! Video Capture Status
    typedef enum _NVVIOCAPTURESTATUS
    {
        NVVIOSTATUS_STOPPED, //!< Sync not detected
        NVVIOSTATUS_RUNNING, //!< Error detected
        NVVIOSTATUS_ERROR,   //!< Genlock in use, format mismatch with output
    } NVVIOCAPTURESTATUS;

    //! Video Capture Status
    typedef enum _NVVIOSTATUSTYPE
    {
        NVVIOSTATUSTYPE_IN,  //!< Input Status
        NVVIOSTATUSTYPE_OUT, //!< Output Status
    } NVVIOSTATUSTYPE;

//! Assumption, maximum 4 SDI input and 4 SDI output cards supported on a system
#define NVAPI_MAX_VIO_DEVICES 8


//! 4 physical jacks supported on each SDI input card.
#define NVAPI_MAX_VIO_JACKS 4


//! Each physical jack an on SDI input card can have
//! two "channels" in the case of "3G" VideoFormats, as specified
//! by SMPTE 425; for non-3G VideoFormats, only the first channel within
//! a physical jack is valid.
#define NVAPI_MAX_VIO_CHANNELS_PER_JACK 2


//! 4 Streams, 1 per physical jack
#define NVAPI_MAX_VIO_STREAMS 4


#define NVAPI_MIN_VIO_STREAMS 1


//! SDI input supports a max of 2 links per stream
#define NVAPI_MAX_VIO_LINKS_PER_STREAM 2


#define NVAPI_MAX_FRAMELOCK_MAPPING_MODES 20


//! Min number of capture images
#define NVAPI_GVI_MIN_RAW_CAPTURE_IMAGES 1


//! Max number of capture images
#define NVAPI_GVI_MAX_RAW_CAPTURE_IMAGES 32


//! Default number of capture images
#define NVAPI_GVI_DEFAULT_RAW_CAPTURE_IMAGES 5


    // Data Signal notification events. These need a event handler in RM.
    // Register/Unregister and PopEvent NVAPI's are already available.

    //! Device configuration
    typedef enum _NVVIOCONFIGTYPE
    {
        NVVIOCONFIGTYPE_IN,  //!< Input Status
        NVVIOCONFIGTYPE_OUT, //!< Output Status
    } NVVIOCONFIGTYPE;

    typedef enum _NVVIOCOLORSPACE
    {
        NVVIOCOLORSPACE_UNKNOWN,
        NVVIOCOLORSPACE_YCBCR,
        NVVIOCOLORSPACE_YCBCRA,
        NVVIOCOLORSPACE_YCBCRD,
        NVVIOCOLORSPACE_GBR,
        NVVIOCOLORSPACE_GBRA,
        NVVIOCOLORSPACE_GBRD,
    } NVVIOCOLORSPACE;

    //! Component sampling
    typedef enum _NVVIOCOMPONENTSAMPLING
    {
        NVVIOCOMPONENTSAMPLING_UNKNOWN,
        NVVIOCOMPONENTSAMPLING_4444,
        NVVIOCOMPONENTSAMPLING_4224,
        NVVIOCOMPONENTSAMPLING_444,
        NVVIOCOMPONENTSAMPLING_422
    } NVVIOCOMPONENTSAMPLING;

    typedef enum _NVVIOBITSPERCOMPONENT
    {
        NVVIOBITSPERCOMPONENT_UNKNOWN,
        NVVIOBITSPERCOMPONENT_8,
        NVVIOBITSPERCOMPONENT_10,
        NVVIOBITSPERCOMPONENT_12,
    } NVVIOBITSPERCOMPONENT;

    typedef enum _NVVIOLINKID
    {
        NVVIOLINKID_UNKNOWN,
        NVVIOLINKID_A,
        NVVIOLINKID_B,
        NVVIOLINKID_C,
        NVVIOLINKID_D
    } NVVIOLINKID;

    typedef enum _NVVIOANCPARITYCOMPUTATION
    {
        NVVIOANCPARITYCOMPUTATION_AUTO,
        NVVIOANCPARITYCOMPUTATION_ON,
        NVVIOANCPARITYCOMPUTATION_OFF
    } NVVIOANCPARITYCOMPUTATION;

//! @}

//---------------------------------------------------------------------
// Structures
//---------------------------------------------------------------------

//! \addtogroup vidio
//! @{

//! Supports Serial Digital Interface (SDI) output
#define NVVIOCAPS_VIDOUT_SDI 0x00000001


//! Supports Internal timing source
#define NVVIOCAPS_SYNC_INTERNAL 0x00000100


//! Supports Genlock timing source
#define NVVIOCAPS_SYNC_GENLOCK 0x00000200


//! Supports Serial Digital Interface (SDI) synchronization input
#define NVVIOCAPS_SYNCSRC_SDI 0x00001000


//! Supports Composite synchronization input
#define NVVIOCAPS_SYNCSRC_COMP 0x00002000


//! Supports Desktop transparent mode
#define NVVIOCAPS_OUTPUTMODE_DESKTOP 0x00010000


//! Supports OpenGL application mode
#define NVVIOCAPS_OUTPUTMODE_OPENGL 0x00020000


//! Supports Serial Digital Interface (SDI) input
#define NVVIOCAPS_VIDIN_SDI 0x00100000


//! Supports Packed ANC
#define NVVIOCAPS_PACKED_ANC_SUPPORTED 0x00200000


//! Supports ANC audio blanking
#define NVVIOCAPS_AUDIO_BLANKING_SUPPORTED 0x00400000


//! SDI-class interface: SDI output with two genlock inputs
#define NVVIOCLASS_SDI 0x00000001


    //! Device capabilities
    typedef struct _NVVIOCAPS
    {
        NvU32 version;            //!< Structure version
        NvAPI_String adapterName; //!< Graphics adapter name
        NvU32 adapterClass;       //!< Graphics adapter classes (NVVIOCLASS_SDI mask)
        NvU32 adapterCaps;        //!< Graphics adapter capabilities (NVVIOCAPS_* mask)
        NvU32 dipSwitch;          //!< On-board DIP switch settings bits
        NvU32 dipSwitchReserved;  //!< On-board DIP switch settings reserved bits
        NvU32 boardID;            //!< Board ID
        //! Driver version
        struct //
        {
            NvU32 majorVersion; //!< Major version. For GVI, majorVersion contains MajorVersion(HIWORD) And MinorVersion(LOWORD)
            NvU32 minorVersion; //!< Minor version. For GVI, minorVersion contains Revison(HIWORD) And Build(LOWORD)
        } driver;               //
        //! Firmware version
        struct
        {
            NvU32 majorVersion;   //!< Major version. In version 2, for both GVI and GVO, majorVersion contains MajorVersion(HIWORD) And MinorVersion(LOWORD)
            NvU32 minorVersion;   //!< Minor version. In version 2, for both GVI and GVO, minorVersion contains Revison(HIWORD) And Build(LOWORD)
        } firmWare;               //
        NVVIOOWNERID ownerId;     //!< Unique identifier for owner of video output (NVVIOOWNERID_INVALID if free running)
        NVVIOOWNERTYPE ownerType; //!< Owner type (OpenGL application or Desktop mode)
    } NVVIOCAPS;

//! Macro for constructing the version field of NVVIOCAPS
#define NVVIOCAPS_VER1 MAKE_NVAPI_VERSION(NVVIOCAPS, 1)

#define NVVIOCAPS_VER2 MAKE_NVAPI_VERSION(NVVIOCAPS, 2)

#define NVVIOCAPS_VER NVVIOCAPS_VER2


    //! Input channel status
    typedef struct _NVVIOCHANNELSTATUS
    {
        NvU32 smpte352;                         //!< 4-byte SMPTE 352 video payload identifier
        NVVIOSIGNALFORMAT signalFormat;         //!< Signal format
        NVVIOBITSPERCOMPONENT bitsPerComponent; //!< Bits per component
        NVVIOCOMPONENTSAMPLING samplingFormat;  //!< Sampling format
        NVVIOCOLORSPACE colorSpace;             //!< Color space
        NVVIOLINKID linkID;                     //!< Link ID
    } NVVIOCHANNELSTATUS;

    //! Input device status
    typedef struct _NVVIOINPUTSTATUS
    {
        NVVIOCHANNELSTATUS vidIn[NVAPI_MAX_VIO_JACKS][NVAPI_MAX_VIO_CHANNELS_PER_JACK]; //!< Video input status per channel within a jack
        NVVIOCAPTURESTATUS captureStatus;                                               //!< status of video capture
    } NVVIOINPUTSTATUS;

    //! Output device status
    typedef struct _NVVIOOUTPUTSTATUS
    {
        NVVIOINPUTOUTPUTSTATUS vid1Out;     //!< Video 1 output status
        NVVIOINPUTOUTPUTSTATUS vid2Out;     //!< Video 2 output status
        NVVIOSYNCSTATUS sdiSyncIn;          //!< SDI sync input status
        NVVIOSYNCSTATUS compSyncIn;         //!< Composite sync input status
        NvU32 syncEnable;                   //!< Sync enable (TRUE if using syncSource)
        NVVIOSYNCSOURCE syncSource;         //!< Sync source
        NVVIOSIGNALFORMAT syncFormat;       //!< Sync format
        NvU32 frameLockEnable;              //!< Framelock enable flag
        NvU32 outputVideoLocked;            //!< Output locked status
        NvU32 dataIntegrityCheckErrorCount; //!< Data integrity check error count
        NvU32 dataIntegrityCheckEnabled;    //!< Data integrity check status enabled
        NvU32 dataIntegrityCheckFailed;     //!< Data integrity check status failed
        NvU32 uSyncSourceLocked;            //!< genlocked to framelocked to ref signal
        NvU32 uPowerOn;                     //!< TRUE: indicates there is sufficient power
    } NVVIOOUTPUTSTATUS;

    //! Video device status.
    typedef struct _NVVIOSTATUS
    {
        NvU32 version;                   //!< Structure version
        NVVIOSTATUSTYPE nvvioStatusType; //!< Input or Output status
        union
        {
            NVVIOINPUTSTATUS inStatus;   //!<  Input device status
            NVVIOOUTPUTSTATUS outStatus; //!<  Output device status
        } vioStatus;
    } NVVIOSTATUS;

//! Macro for constructingthe version field of NVVIOSTATUS
#define NVVIOSTATUS_VER MAKE_NVAPI_VERSION(NVVIOSTATUS, 1)


    //! Output region
    typedef struct _NVVIOOUTPUTREGION
    {
        NvU32 x;      //!< Horizontal origin in pixels
        NvU32 y;      //!< Vertical origin in pixels
        NvU32 width;  //!< Width of region in pixels
        NvU32 height; //!< Height of region in pixels
    } NVVIOOUTPUTREGION;

    //! Gamma ramp (8-bit index)
    typedef struct _NVVIOGAMMARAMP8
    {
        NvU16 uRed[256];   //!< Red channel gamma ramp (8-bit index, 16-bit values)
        NvU16 uGreen[256]; //!< Green channel gamma ramp (8-bit index, 16-bit values)
        NvU16 uBlue[256];  //!< Blue channel gamma ramp (8-bit index, 16-bit values)
    } NVVIOGAMMARAMP8;

    //! Gamma ramp (10-bit index)
    typedef struct _NVVIOGAMMARAMP10
    {
        NvU16 uRed[1024];   //!< Red channel gamma ramp (10-bit index, 16-bit values)
        NvU16 uGreen[1024]; //!< Green channel gamma ramp (10-bit index, 16-bit values)
        NvU16 uBlue[1024];  //!< Blue channel gamma ramp (10-bit index, 16-bit values)
    } NVVIOGAMMARAMP10;

    //! Sync delay
    typedef struct _NVVIOSYNCDELAY
    {
        NvU32 version;         //!< Structure version
        NvU32 horizontalDelay; //!< Horizontal delay in pixels
        NvU32 verticalDelay;   //!< Vertical delay in lines
    } NVVIOSYNCDELAY;

//! Macro for constructing the version field of NVVIOSYNCDELAY
#define NVVIOSYNCDELAY_VER MAKE_NVAPI_VERSION(NVVIOSYNCDELAY, 1)


    //! Video mode information
    typedef struct _NVVIOVIDEOMODE
    {
        NvU32 horizontalPixels;           //!< Horizontal resolution (in pixels)
        NvU32 verticalLines;              //!< Vertical resolution for frame (in lines)
        float fFrameRate;                 //!< Frame rate
        NVVIOINTERLACEMODE interlaceMode; //!< Interlace mode
        NVVIOVIDEOSTANDARD videoStandard; //!< SMPTE standards format
        NVVIOVIDEOTYPE videoType;         //!< HD or SD signal classification
    } NVVIOVIDEOMODE;

    //! Signal format details
    typedef struct _NVVIOSIGNALFORMATDETAIL
    {
        NVVIOSIGNALFORMAT signalFormat; //!< Signal format enumerated value
        NVVIOVIDEOMODE videoMode;       //!< Video mode for signal format
    } NVVIOSIGNALFORMATDETAIL;

//! R8:G8:B8
#define NVVIOBUFFERFORMAT_R8G8B8 0x00000001


//! R8:G8:B8:Z24
#define NVVIOBUFFERFORMAT_R8G8B8Z24 0x00000002


//! R8:G8:B8:A8
#define NVVIOBUFFERFORMAT_R8G8B8A8 0x00000004


//! R8:G8:B8:A8:Z24
#define NVVIOBUFFERFORMAT_R8G8B8A8Z24 0x00000008


//! R16FP:G16FP:B16FP
#define NVVIOBUFFERFORMAT_R16FPG16FPB16FP 0x00000010


//! R16FP:G16FP:B16FP:Z24
#define NVVIOBUFFERFORMAT_R16FPG16FPB16FPZ24 0x00000020


//! R16FP:G16FP:B16FP:A16FP
#define NVVIOBUFFERFORMAT_R16FPG16FPB16FPA16FP 0x00000040


//! R16FP:G16FP:B16FP:A16FP:Z24
#define NVVIOBUFFERFORMAT_R16FPG16FPB16FPA16FPZ24 0x00000080


    //! Data format details
    typedef struct _NVVIODATAFORMATDETAIL
    {
        NVVIODATAFORMAT dataFormat; //!< Data format enumerated value
        NvU32 vioCaps;              //!< Data format capabilities (NVVIOCAPS_* mask)
    } NVVIODATAFORMATDETAIL;

    //! Colorspace conversion
    typedef struct _NVVIOCOLORCONVERSION
    {
        NvU32 version;           //!<  Structure version
        float colorMatrix[3][3]; //!<  Output[n] =
        float colorOffset[3];    //!<  Input[0] * colorMatrix[n][0] +
        float colorScale[3];     //!<  Input[1] * colorMatrix[n][1] +
                                 //!<  Input[2] * colorMatrix[n][2] +
                                 //!<  OutputRange * colorOffset[n]
                                 //!<  where OutputRange is the standard magnitude of
                                 //!<  Output[n][n] and colorMatrix and colorOffset
                                 //!<  values are within the range -1.0 to +1.0
        NvU32 compositeSafe;     //!<  compositeSafe constrains luminance range when using composite output
    } NVVIOCOLORCONVERSION;

//! macro for constructing the version field of _NVVIOCOLORCONVERSION.
#define NVVIOCOLORCONVERSION_VER MAKE_NVAPI_VERSION(NVVIOCOLORCONVERSION, 1)


    //! Gamma correction
    typedef struct _NVVIOGAMMACORRECTION
    {
        NvU32 version;                //!< Structure version
        NvU32 vioGammaCorrectionType; //!< Gamma correction type (8-bit or 10-bit)
        //! Gamma correction:
        union
        {
            NVVIOGAMMARAMP8 gammaRamp8;   //!< Gamma ramp (8-bit index, 16-bit values)
            NVVIOGAMMARAMP10 gammaRamp10; //!< Gamma ramp (10-bit index, 16-bit values)
        } gammaRamp;
        float fGammaValueR; //!< Red Gamma value within gamma ranges. 0.5 - 6.0
        float fGammaValueG; //!< Green Gamma value within gamma ranges. 0.5 - 6.0
        float fGammaValueB; //!< Blue Gamma value within gamma ranges. 0.5 - 6.0
    } NVVIOGAMMACORRECTION;

//! Macro for constructing thevesion field of _NVVIOGAMMACORRECTION
#define NVVIOGAMMACORRECTION_VER MAKE_NVAPI_VERSION(NVVIOGAMMACORRECTION, 1)


//! Maximum number of ranges per channel
#define MAX_NUM_COMPOSITE_RANGE 2


    typedef struct _NVVIOCOMPOSITERANGE
    {
        NvU32 uRange;
        NvU32 uEnabled;
        NvU32 uMin;
        NvU32 uMax;
    } NVVIOCOMPOSITERANGE;

// Device configuration (fields masks indicating NVVIOCONFIG fields to use for NvAPI_VIO_GetConfig/NvAPI_VIO_SetConfig() )
//
#define NVVIOCONFIG_SIGNALFORMAT 0x00000001             //!< fields: signalFormat

#define NVVIOCONFIG_DATAFORMAT 0x00000002               //!< fields: dataFormat

#define NVVIOCONFIG_OUTPUTREGION 0x00000004             //!< fields: outputRegion

#define NVVIOCONFIG_OUTPUTAREA 0x00000008               //!< fields: outputArea

#define NVVIOCONFIG_COLORCONVERSION 0x00000010          //!< fields: colorConversion

#define NVVIOCONFIG_GAMMACORRECTION 0x00000020          //!< fields: gammaCorrection

#define NVVIOCONFIG_SYNCSOURCEENABLE 0x00000040         //!< fields: syncSource and syncEnable

#define NVVIOCONFIG_SYNCDELAY 0x00000080                //!< fields: syncDelay

#define NVVIOCONFIG_COMPOSITESYNCTYPE 0x00000100        //!< fields: compositeSyncType

#define NVVIOCONFIG_FRAMELOCKENABLE 0x00000200          //!< fields: EnableFramelock

#define NVVIOCONFIG_422FILTER 0x00000400                //!< fields: bEnable422Filter

#define NVVIOCONFIG_COMPOSITETERMINATE 0x00000800       //!< fields: bCompositeTerminate (Not supported on Quadro FX 4000 SDI)

#define NVVIOCONFIG_DATAINTEGRITYCHECK 0x00001000       //!< fields: bEnableDataIntegrityCheck (Not supported on Quadro FX 4000 SDI)

#define NVVIOCONFIG_CSCOVERRIDE 0x00002000              //!< fields: colorConversion override

#define NVVIOCONFIG_FLIPQUEUELENGTH 0x00004000          //!< fields: flipqueuelength control

#define NVVIOCONFIG_ANCTIMECODEGENERATION 0x00008000    //!< fields: bEnableANCTimeCodeGeneration

#define NVVIOCONFIG_COMPOSITE 0x00010000                //!< fields: bEnableComposite

#define NVVIOCONFIG_ALPHAKEYCOMPOSITE 0x00020000        //!< fields: bEnableAlphaKeyComposite

#define NVVIOCONFIG_COMPOSITE_Y 0x00040000              //!< fields: compRange

#define NVVIOCONFIG_COMPOSITE_CR 0x00080000             //!< fields: compRange

#define NVVIOCONFIG_COMPOSITE_CB 0x00100000             //!< fields: compRange

#define NVVIOCONFIG_FULL_COLOR_RANGE 0x00200000         //!< fields: bEnableFullColorRange

#define NVVIOCONFIG_RGB_DATA 0x00400000                 //!< fields: bEnableRGBData

#define NVVIOCONFIG_RESERVED_SDIOUTPUTENABLE 0x00800000 //!< fields: bEnableSDIOutput

#define NVVIOCONFIG_STREAMS 0x01000000                  //!< fields: streams

#define NVVIOCONFIG_ANC_PARITY_COMPUTATION 0x02000000   //!< fields: ancParityComputation

#define NVVIOCONFIG_ANC_AUDIO_REPEAT 0x04000000         //!< fields: enableAudioBlanking


// Don't forget to update NVVIOCONFIG_VALIDFIELDS in nvapi.spec when NVVIOCONFIG_ALLFIELDS changes.
#define NVVIOCONFIG_ALLFIELDS (NVVIOCONFIG_SIGNALFORMAT |             \
                               NVVIOCONFIG_DATAFORMAT |               \
                               NVVIOCONFIG_OUTPUTREGION |             \
                               NVVIOCONFIG_OUTPUTAREA |               \
                               NVVIOCONFIG_COLORCONVERSION |          \
                               NVVIOCONFIG_GAMMACORRECTION |          \
                               NVVIOCONFIG_SYNCSOURCEENABLE |         \
                               NVVIOCONFIG_SYNCDELAY |                \
                               NVVIOCONFIG_COMPOSITESYNCTYPE |        \
                               NVVIOCONFIG_FRAMELOCKENABLE |          \
                               NVVIOCONFIG_422FILTER |                \
                               NVVIOCONFIG_COMPOSITETERMINATE |       \
                               NVVIOCONFIG_DATAINTEGRITYCHECK |       \
                               NVVIOCONFIG_CSCOVERRIDE |              \
                               NVVIOCONFIG_FLIPQUEUELENGTH |          \
                               NVVIOCONFIG_ANCTIMECODEGENERATION |    \
                               NVVIOCONFIG_COMPOSITE |                \
                               NVVIOCONFIG_ALPHAKEYCOMPOSITE |        \
                               NVVIOCONFIG_COMPOSITE_Y |              \
                               NVVIOCONFIG_COMPOSITE_CR |             \
                               NVVIOCONFIG_COMPOSITE_CB |             \
                               NVVIOCONFIG_FULL_COLOR_RANGE |         \
                               NVVIOCONFIG_RGB_DATA |                 \
                               NVVIOCONFIG_RESERVED_SDIOUTPUTENABLE | \
                               NVVIOCONFIG_STREAMS |                  \
                               NVVIOCONFIG_ANC_PARITY_COMPUTATION |   \
                               NVVIOCONFIG_ANC_AUDIO_REPEAT)


#define NVVIOCONFIG_VALIDFIELDS (NVVIOCONFIG_SIGNALFORMAT |             \
                                 NVVIOCONFIG_DATAFORMAT |               \
                                 NVVIOCONFIG_OUTPUTREGION |             \
                                 NVVIOCONFIG_OUTPUTAREA |               \
                                 NVVIOCONFIG_COLORCONVERSION |          \
                                 NVVIOCONFIG_GAMMACORRECTION |          \
                                 NVVIOCONFIG_SYNCSOURCEENABLE |         \
                                 NVVIOCONFIG_SYNCDELAY |                \
                                 NVVIOCONFIG_COMPOSITESYNCTYPE |        \
                                 NVVIOCONFIG_FRAMELOCKENABLE |          \
                                 NVVIOCONFIG_RESERVED_SDIOUTPUTENABLE | \
                                 NVVIOCONFIG_422FILTER |                \
                                 NVVIOCONFIG_COMPOSITETERMINATE |       \
                                 NVVIOCONFIG_DATAINTEGRITYCHECK |       \
                                 NVVIOCONFIG_CSCOVERRIDE |              \
                                 NVVIOCONFIG_FLIPQUEUELENGTH |          \
                                 NVVIOCONFIG_ANCTIMECODEGENERATION |    \
                                 NVVIOCONFIG_COMPOSITE |                \
                                 NVVIOCONFIG_ALPHAKEYCOMPOSITE |        \
                                 NVVIOCONFIG_COMPOSITE_Y |              \
                                 NVVIOCONFIG_COMPOSITE_CR |             \
                                 NVVIOCONFIG_COMPOSITE_CB |             \
                                 NVVIOCONFIG_FULL_COLOR_RANGE |         \
                                 NVVIOCONFIG_RGB_DATA |                 \
                                 NVVIOCONFIG_RESERVED_SDIOUTPUTENABLE | \
                                 NVVIOCONFIG_STREAMS |                  \
                                 NVVIOCONFIG_ANC_PARITY_COMPUTATION |   \
                                 NVVIOCONFIG_ANC_AUDIO_REPEAT)


#define NVVIOCONFIG_DRIVERFIELDS (NVVIOCONFIG_OUTPUTREGION |    \
                                  NVVIOCONFIG_OUTPUTAREA |      \
                                  NVVIOCONFIG_COLORCONVERSION | \
                                  NVVIOCONFIG_FLIPQUEUELENGTH)


#define NVVIOCONFIG_GAMMAFIELDS (NVVIOCONFIG_GAMMACORRECTION)


#define NVVIOCONFIG_RMCTRLFIELDS (NVVIOCONFIG_SIGNALFORMAT |       \
                                  NVVIOCONFIG_DATAFORMAT |         \
                                  NVVIOCONFIG_SYNCSOURCEENABLE |   \
                                  NVVIOCONFIG_COMPOSITESYNCTYPE |  \
                                  NVVIOCONFIG_FRAMELOCKENABLE |    \
                                  NVVIOCONFIG_422FILTER |          \
                                  NVVIOCONFIG_COMPOSITETERMINATE | \
                                  NVVIOCONFIG_DATAINTEGRITYCHECK | \
                                  NVVIOCONFIG_COMPOSITE |          \
                                  NVVIOCONFIG_ALPHAKEYCOMPOSITE |  \
                                  NVVIOCONFIG_COMPOSITE_Y |        \
                                  NVVIOCONFIG_COMPOSITE_CR |       \
                                  NVVIOCONFIG_COMPOSITE_CB)


#define NVVIOCONFIG_RMSKEWFIELDS (NVVIOCONFIG_SYNCDELAY)


#define NVVIOCONFIG_ALLOWSDIRUNNING_FIELDS (NVVIOCONFIG_DATAINTEGRITYCHECK |    \
                                            NVVIOCONFIG_SYNCDELAY |             \
                                            NVVIOCONFIG_CSCOVERRIDE |           \
                                            NVVIOCONFIG_ANCTIMECODEGENERATION | \
                                            NVVIOCONFIG_COMPOSITE |             \
                                            NVVIOCONFIG_ALPHAKEYCOMPOSITE |     \
                                            NVVIOCONFIG_COMPOSITE_Y |           \
                                            NVVIOCONFIG_COMPOSITE_CR |          \
                                            NVVIOCONFIG_COMPOSITE_CB |          \
                                            NVVIOCONFIG_ANC_PARITY_COMPUTATION)


#define NVVIOCONFIG_RMMODESET_FIELDS (NVVIOCONFIG_SIGNALFORMAT |      \
                                      NVVIOCONFIG_DATAFORMAT |        \
                                      NVVIOCONFIG_SYNCSOURCEENABLE |  \
                                      NVVIOCONFIG_FRAMELOCKENABLE |   \
                                      NVVIOCONFIG_COMPOSITESYNCTYPE | \
                                      NVVIOCONFIG_ANC_AUDIO_REPEAT)


    //! Output device configuration
    // No members can be deleted from below structure. Only add new members at the
    // end of the structure.
    typedef struct _NVVIOOUTPUTCONFIG_V1
    {
        NVVIOSIGNALFORMAT signalFormat;       //!< Signal format for video output
        NVVIODATAFORMAT dataFormat;           //!< Data format for video output
        NVVIOOUTPUTREGION outputRegion;       //!< Region for video output (Desktop mode)
        NVVIOOUTPUTAREA outputArea;           //!< Usable resolution for video output (safe area)
        NVVIOCOLORCONVERSION colorConversion; //!< Color conversion.
        NVVIOGAMMACORRECTION gammaCorrection;
        NvU32 syncEnable;                    //!< Sync enable (TRUE to use syncSource)
        NVVIOSYNCSOURCE syncSource;          //!< Sync source
        NVVIOSYNCDELAY syncDelay;            //!< Sync delay
        NVVIOCOMPSYNCTYPE compositeSyncType; //!< Composite sync type
        NvU32 frameLockEnable;               //!< Flag indicating whether framelock was on/off
        NvU32 psfSignalFormat;               //!< Indicates whether contained format is PSF Signal format
        NvU32 enable422Filter;               //!< Enables/Disables 4:2:2 filter
        NvU32 compositeTerminate;            //!< Composite termination
        NvU32 enableDataIntegrityCheck;      //!< Enable data integrity check: true - enable, false - disable
        NvU32 cscOverride;                   //!< Use provided CSC color matrix to overwrite
        NvU32 flipQueueLength;               //!< Number of buffers used for the internal flipqueue
        NvU32 enableANCTimeCodeGeneration;   //!< Enable SDI ANC time code generation
        NvU32 enableComposite;               //!< Enable composite
        NvU32 enableAlphaKeyComposite;       //!< Enable Alpha key composite
        NVVIOCOMPOSITERANGE compRange;       //!< Composite ranges
        NvU8 reservedData[256];              //!< Inicates last stored SDI output state TRUE-ON / FALSE-OFF
        NvU32 enableFullColorRange;          //!< Flag indicating Full Color Range
        NvU32 enableRGBData;                 //!< Indicates data is in RGB format
    } NVVIOOUTPUTCONFIG_V1;

    typedef struct _NVVIOOUTPUTCONFIG_V2
    {
        NVVIOSIGNALFORMAT signalFormat;       //!< Signal format for video output
        NVVIODATAFORMAT dataFormat;           //!< Data format for video output
        NVVIOOUTPUTREGION outputRegion;       //!< Region for video output (Desktop mode)
        NVVIOOUTPUTAREA outputArea;           //!< Usable resolution for video output (safe area)
        NVVIOCOLORCONVERSION colorConversion; //!< Color conversion.
        NVVIOGAMMACORRECTION gammaCorrection;
        NvU32 syncEnable;                               //!< Sync enable (TRUE to use syncSource)
        NVVIOSYNCSOURCE syncSource;                     //!< Sync source
        NVVIOSYNCDELAY syncDelay;                       //!< Sync delay
        NVVIOCOMPSYNCTYPE compositeSyncType;            //!< Composite sync type
        NvU32 frameLockEnable;                          //!< Flag indicating whether framelock was on/off
        NvU32 psfSignalFormat;                          //!< Indicates whether contained format is PSF Signal format
        NvU32 enable422Filter;                          //!< Enables/Disables 4:2:2 filter
        NvU32 compositeTerminate;                       //!< Composite termination
        NvU32 enableDataIntegrityCheck;                 //!< Enable data integrity check: true - enable, false - disable
        NvU32 cscOverride;                              //!< Use provided CSC color matrix to overwrite
        NvU32 flipQueueLength;                          //!< Number of buffers used for the internal flip queue
        NvU32 enableANCTimeCodeGeneration;              //!< Enable SDI ANC time code generation
        NvU32 enableComposite;                          //!< Enable composite
        NvU32 enableAlphaKeyComposite;                  //!< Enable Alpha key composite
        NVVIOCOMPOSITERANGE compRange;                  //!< Composite ranges
        NvU8 reservedData[256];                         //!< Indicates last stored SDI output state TRUE-ON / FALSE-OFF
        NvU32 enableFullColorRange;                     //!< Flag indicating Full Color Range
        NvU32 enableRGBData;                            //!< Indicates data is in RGB format
        NVVIOANCPARITYCOMPUTATION ancParityComputation; //!< Enable HW ANC parity bit computation (auto/on/off)
    } NVVIOOUTPUTCONFIG_V2;

    typedef struct _NVVIOOUTPUTCONFIG_V3
    {
        NVVIOSIGNALFORMAT signalFormat;       //!< Signal format for video output
        NVVIODATAFORMAT dataFormat;           //!< Data format for video output
        NVVIOOUTPUTREGION outputRegion;       //!< Region for video output (Desktop mode)
        NVVIOOUTPUTAREA outputArea;           //!< Usable resolution for video output (safe area)
        NVVIOCOLORCONVERSION colorConversion; //!< Color conversion.
        NVVIOGAMMACORRECTION gammaCorrection;
        NvU32 syncEnable;                               //!< Sync enable (TRUE to use syncSource)
        NVVIOSYNCSOURCE syncSource;                     //!< Sync source
        NVVIOSYNCDELAY syncDelay;                       //!< Sync delay
        NVVIOCOMPSYNCTYPE compositeSyncType;            //!< Composite sync type
        NvU32 frameLockEnable;                          //!< Flag indicating whether framelock was on/off
        NvU32 psfSignalFormat;                          //!< Indicates whether contained format is PSF Signal format
        NvU32 enable422Filter;                          //!< Enables/Disables 4:2:2 filter
        NvU32 compositeTerminate;                       //!< Composite termination
        NvU32 enableDataIntegrityCheck;                 //!< Enable data integrity check: true - enable, false - disable
        NvU32 cscOverride;                              //!< Use provided CSC color matrix to overwrite
        NvU32 flipQueueLength;                          //!< Number of buffers used for the internal flip queue
        NvU32 enableANCTimeCodeGeneration;              //!< Enable SDI ANC time code generation
        NvU32 enableComposite;                          //!< Enable composite
        NvU32 enableAlphaKeyComposite;                  //!< Enable Alpha key composite
        NVVIOCOMPOSITERANGE compRange;                  //!< Composite ranges
        NvU8 reservedData[256];                         //!< Indicates last stored SDI output state TRUE-ON / FALSE-OFF
        NvU32 enableFullColorRange;                     //!< Flag indicating Full Color Range
        NvU32 enableRGBData;                            //!< Indicates data is in RGB format
        NVVIOANCPARITYCOMPUTATION ancParityComputation; //!< Enable HW ANC parity bit computation (auto/on/off)
        NvU32 enableAudioBlanking;                      //!< Enable HANC audio blanking on repeat frames
    } NVVIOOUTPUTCONFIG_V3;

    //! Stream configuration
    typedef struct _NVVIOSTREAM
    {
        NvU32 bitsPerComponent;          //!< Bits per component
        NVVIOCOMPONENTSAMPLING sampling; //!< Sampling
        NvU32 expansionEnable;           //!< Enable/disable 4:2:2->4:4:4 expansion
        NvU32 numLinks;                  //!< Number of active links
        struct
        {
            NvU32 jack;    //!< This stream's link[i] will use the specified (0-based) channel within the
            NvU32 channel; //!< specified (0-based) jack
        } links[NVAPI_MAX_VIO_LINKS_PER_STREAM];
    } NVVIOSTREAM;

    //! Input device configuration
    typedef struct _NVVIOINPUTCONFIG
    {
        NvU32 numRawCaptureImages;                  //!< numRawCaptureImages is the number of frames to keep in the capture queue.
                                                    //!< must be between NVAPI_GVI_MIN_RAW_CAPTURE_IMAGES and NVAPI_GVI_MAX_RAW_CAPTURE_IMAGES,
        NVVIOSIGNALFORMAT signalFormat;             //!< Signal format.
                                                    //!< Please note that both numRawCaptureImages and signalFormat should be set together.
        NvU32 numStreams;                           //!< Number of active streams.
        NVVIOSTREAM streams[NVAPI_MAX_VIO_STREAMS]; //!< Stream configurations
        NvU32 bTestMode;                            //!< This attribute controls the GVI test mode.
                                                    //!< Possible values 0/1. When testmode enabled, the
                                                    //!< GVI device will generate fake data as quickly as possible.
    } NVVIOINPUTCONFIG;

    typedef struct _NVVIOCONFIG_V1
    {
        NvU32 version;                   //!< Structure version
        NvU32 fields;                    //!< Caller sets to NVVIOCONFIG_* mask for fields to use
        NVVIOCONFIGTYPE nvvioConfigType; //!< Input or Output configuration
        union
        {
            NVVIOINPUTCONFIG inConfig;      //!<  Input device configuration
            NVVIOOUTPUTCONFIG_V1 outConfig; //!<  Output device configuration
        } vioConfig;
    } NVVIOCONFIG_V1;

    typedef struct _NVVIOCONFIG_V2
    {
        NvU32 version;                   //!< Structure version
        NvU32 fields;                    //!< Caller sets to NVVIOCONFIG_* mask for fields to use
        NVVIOCONFIGTYPE nvvioConfigType; //!< Input or Output configuration
        union
        {
            NVVIOINPUTCONFIG inConfig;      //!< Input device configuration
            NVVIOOUTPUTCONFIG_V2 outConfig; //!< Output device configuration
        } vioConfig;
    } NVVIOCONFIG_V2;

    typedef struct _NVVIOCONFIG_V3
    {
        NvU32 version;                   //!< Structure version
        NvU32 fields;                    //!< Caller sets to NVVIOCONFIG_* mask for fields to use
        NVVIOCONFIGTYPE nvvioConfigType; //!< Input or Output configuration
        union
        {
            NVVIOINPUTCONFIG inConfig;      //!< Input device configuration
            NVVIOOUTPUTCONFIG_V3 outConfig; //!< Output device configuration
        } vioConfig;
    } NVVIOCONFIG_V3;
    typedef NVVIOOUTPUTCONFIG_V3 NVVIOOUTPUTCONFIG;
    typedef NVVIOCONFIG_V3 NVVIOCONFIG;

#define NVVIOCONFIG_VER1 MAKE_NVAPI_VERSION(NVVIOCONFIG_V1, 1)

#define NVVIOCONFIG_VER2 MAKE_NVAPI_VERSION(NVVIOCONFIG_V2, 2)

#define NVVIOCONFIG_VER3 MAKE_NVAPI_VERSION(NVVIOCONFIG_V3, 3)

#define NVVIOCONFIG_VER NVVIOCONFIG_VER3


    typedef struct
    {
        NvPhysicalGpuHandle hPhysicalGpu; //!< Handle to Physical GPU (This could be NULL for GVI device if its not binded)
        NvVioHandle hVioHandle;           //!< handle to SDI Input/Output device
        NvU32 vioId;                      //!< device Id of SDI Input/Output device
        NvU32 outputId;                   //!< deviceMask of the SDI display connected to GVO device.
                        //!< outputId will be 0 for GVI device.
    } NVVIOTOPOLOGYTARGET;

    typedef struct _NV_VIO_TOPOLOGY
    {
        NvU32 version;
        NvU32 vioTotalDeviceCount;                            //!< How many video I/O targets are valid
        NVVIOTOPOLOGYTARGET vioTarget[NVAPI_MAX_VIO_DEVICES]; //!< Array of video I/O targets
    } NV_VIO_TOPOLOGY, NVVIOTOPOLOGY;

//! Macro for constructing the version field of NV_VIO_TOPOLOGY
#define NV_VIO_TOPOLOGY_VER MAKE_NVAPI_VERSION(NV_VIO_TOPOLOGY, 1)


//! Macro for constructing the version field of NVVIOTOPOLOGY
#define NVVIOTOPOLOGY_VER MAKE_NVAPI_VERSION(NVVIOTOPOLOGY, 1)


    //! @}

    //! \addtogroup vidio
    //! @{
    ///////////////////////////////////////////////////////////////////////////////
    //!
    //!   Function:    NvAPI_VIO_GetCapabilities
    //!
    //!   Description: This API determine the graphics adapter video I/O capabilities.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle   The caller provides the SDI device handle as input.
    //! \param [out] pAdapterCaps  Pointer to receive capabilities
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_GetCapabilities(NvVioHandle hVioHandle,
                                                  NVVIOCAPS *pAdapterCaps);

    ////////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_Open
    //!
    //!   Description: This API opens the graphics adapter for video I/O operations
    //!                using the OpenGL application interface.  Read operations
    //!                are permitted in this mode by multiple clients, but Write
    //!                operations are application exclusive.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle      The caller provides the SDI output device handle as input.
    //! \param [in]  vioClass         Class interface (NVVIOCLASS_* value)
    //! \param [in]  ownerType        Specify NVVIOOWNERTYPE_APPLICATION or NVVIOOWNERTYPE_DESKTOP.
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_Open(NvVioHandle hVioHandle,
                                       NvU32 vioClass,
                                       NVVIOOWNERTYPE ownerType);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_Close
    //!
    //!   Description: This API closes the graphics adapter for graphics-to-video operations
    //!                using the OpenGL application interface.  Closing an
    //!                OpenGL handle releases the device.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle   The caller provides the SDI output device handle as input.
    //! \param [in]  bRelease      boolean value to either keep or release ownership
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_Close(NvVioHandle hVioHandle,
                                        NvU32 bRelease);
    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_Status
    //!
    //!   Description: This API gets the Video I/O LED status.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle   The caller provides the SDI device handle as input.
    //! \param [out] pStatus       Return pointer to NVVIOSTATUS
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_Status(NvVioHandle hVioHandle,
                                         NVVIOSTATUS *pStatus);

    ////////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_SyncFormatDetect
    //!
    //!   Description: This API detects the Video I/O incoming sync video format.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle  The caller provides the SDI device handle as input.
    //! \param [out] pWait        Pointer to receive how many milliseconds will lapse
    //!                           before VIOStatus returns the detected syncFormat.
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_SyncFormatDetect(NvVioHandle hVioHandle,
                                                   NvU32 *pWait);
    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_GetConfig
    //!
    //!   Description: This API gets the graphics-to-video configuration.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle   The caller provides the SDI device handle as input.
    //! \param [out] pConfig       Pointer to the graphics-to-video configuration
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_GetConfig(NvVioHandle hVioHandle,
                                            NVVIOCONFIG *pConfig);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_SetConfig
    //!
    //!   Description: This API sets the graphics-to-video configuration.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle      The caller provides the SDI device handle as input.
    //! \param [in]  pConfig          Pointer to Graphics-to-Video configuration
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_SetConfig(NvVioHandle hVioHandle,
                                            const NVVIOCONFIG *pConfig);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_SetCSC
    //!
    //!   Description: This API sets the colorspace conversion parameters.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_SetConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle      The caller provides the SDI device handle as input.
    //! \param [in]  pCSC             Pointer to CSC parameters
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ////////////////////////////////////////////////////////////////////////////////----
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_SetConfig.")
        NVAPI_INTERFACE NvAPI_VIO_SetCSC(NvVioHandle hVioHandle,
                                         NVVIOCOLORCONVERSION *pCSC);
    ////////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_GetCSC
    //!
    //!   Description: This API gets the colorspace conversion parameters.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_GetConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle      The caller provides the SDI device handle as input.
    //! \param [out] pCSC             Pointer to CSC parameters
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ////////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_GetConfig.")
        NVAPI_INTERFACE NvAPI_VIO_GetCSC(NvVioHandle hVioHandle,
                                         NVVIOCOLORCONVERSION *pCSC);
    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_SetGamma
    //!
    //!   Description: This API sets the gamma conversion parameters.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_SetConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle       The caller provides the SDI device handle as input.
    //! \param [in]  pGamma            Pointer to gamma parameters
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_SetConfig.")
        NVAPI_INTERFACE NvAPI_VIO_SetGamma(NvVioHandle hVioHandle,
                                           NVVIOGAMMACORRECTION *pGamma);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_GetGamma
    //!
    //!   Description: This API gets the gamma conversion parameters.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_GetConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle      The caller provides the SDI device handle as input.
    //! \param [out] pGamma           Pointer to gamma parameters
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_GetConfig.")
        NVAPI_INTERFACE NvAPI_VIO_GetGamma(NvVioHandle hVioHandle,
                                           NVVIOGAMMACORRECTION *pGamma);
    ////////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_SetSyncDelay
    //!
    //!   Description: This API sets the sync delay parameters.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_SetConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle   The caller provides the SDI device handle as input.
    //! \param [in]  pSyncDelay    Pointer to sync delay parameters
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_SetConfig.")
        NVAPI_INTERFACE NvAPI_VIO_SetSyncDelay(NvVioHandle hVioHandle,
                                               const NVVIOSYNCDELAY *pSyncDelay);

    ////////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_GetSyncDelay
    //!
    //!   Description: This API gets the sync delay parameters.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_GetConfig.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle      The caller provides the SDI device handle as input.
    //! \param [out] pSyncDelay       Pointer to sync delay parameters
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 290. Instead, use NvAPI_VIO_GetConfig.")
        NVAPI_INTERFACE NvAPI_VIO_GetSyncDelay(NvVioHandle hVioHandle,
                                               NVVIOSYNCDELAY *pSyncDelay);

    typedef enum _NVVIOPCILINKRATE
    {
        NVVIOPCILINKRATE_UNKNOWN = 0,
        NVVIOPCILINKRATE_GEN1 = 1, //<! 2.5 Gbps.
        NVVIOPCILINKRATE_GEN2 = 2, //<! 5 Gbps.
        NVVIOPCILINKRATE_GEN3 = 3, //<! 8 Gbps.
    } NVVIOPCILINKRATE;

    typedef enum _NVVIOPCILINKWIDTH
    {
        NVVIOPCILINKWIDTH_UNKNOWN = 0,
        NVVIOPCILINKWIDTH_x1 = 1,
        NVVIOPCILINKWIDTH_x2 = 2,
        NVVIOPCILINKWIDTH_x4 = 4,
        NVVIOPCILINKWIDTH_x8 = 8,
        NVVIOPCILINKWIDTH_x16 = 16,
    } NVVIOPCILINKWIDTH;

    typedef struct _NVVIOPCIINFO
    {
        NvU32 version; //!< Structure version

        NvU32 pciDeviceId;              //!< specifies the internal PCI device identifier for the GVI.
        NvU32 pciSubSystemId;           //!< specifies the internal PCI subsystem identifier for the GVI.
        NvU32 pciRevisionId;            //!< specifies the internal PCI device-specific revision identifier for the GVI.
        NvU32 pciDomain;                //!< specifies the PCI domain of the GVI device.
        NvU32 pciBus;                   //!< specifies the PCI bus number of the GVI device.
        NvU32 pciSlot;                  //!< specifies the PCI slot number of the GVI device.
        NVVIOPCILINKWIDTH pciLinkWidth; //!< specifies the the negotiated PCIE link width.
        NVVIOPCILINKRATE pciLinkRate;   //!< specifies the the negotiated PCIE link rate.
    } NVVIOPCIINFO_V1;

    typedef NVVIOPCIINFO_V1 NVVIOPCIINFO;
#define NVVIOPCIINFO_VER1 MAKE_NVAPI_VERSION(NVVIOPCIINFO_V1, 1)

#define NVVIOPCIINFO_VER NVVIOPCIINFO_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_VIO_GetPCIInfo()
    //
    // DESCRIPTION:   This API gets PCI information of the attached SDI(input) capture card.
    //
    // PARAMETERS:      hVioHandle    (IN)    - Handle to SDI capture card.
    //                  pVioPCIInfo    (OUT)    - PCI information of the attached SDI capture card.
    //
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_GetPCIInfo(__in NvVioHandle hVioHandle,
                                             __inout NVVIOPCIINFO *pVioPCIInfo);

    ////////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_IsRunning
    //!
    //!   Description: This API determines if Video I/O is running.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle[IN]          The caller provides the SDI device handle as input.
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_IsRunning(NvVioHandle hVioHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_Start
    //!
    //!   Description: This API starts Video I/O.
    //!              This API should be called for NVVIOOWNERTYPE_DESKTOP only and will not work for OGL applications.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle[IN]     The caller provides the SDI device handle as input.
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_Start(NvVioHandle hVioHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_Stop
    //!
    //!   Description: This API stops Video I/O.
    //!              This API should be called for NVVIOOWNERTYPE_DESKTOP only and will not work for OGL applications.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle[IN]     The caller provides the SDI device handle as input.
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_Stop(NvVioHandle hVioHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_IsFrameLockModeCompatible
    //!
    //!   Description: This API checks whether modes are compatible in frame lock mode.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]   NvVioHandle          The caller provides the SDI device handle as input.
    //! \param [in]   srcEnumIndex         Source Enumeration index
    //! \param [in]   destEnumIndex        Destination Enumeration index
    //! \param [out]  pbCompatible         Pointer to receive compatibility
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_IsFrameLockModeCompatible(NvVioHandle hVioHandle,
                                                            NvU32 srcEnumIndex,
                                                            NvU32 destEnumIndex,
                                                            NvU32 *pbCompatible);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_EnumDevices
    //!
    //!   Description: This API enumerate all VIO devices connected to the system.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [out]  NvVioHandle                  User passes the pointer of NvVioHandle[] array to get handles to
    //!                                            all the connected video I/O devices.
    //! \param [out]  vioDeviceCount               User gets total number of VIO devices connected to the system.
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_EnumDevices(NvVioHandle hVioHandle[NVAPI_MAX_VIO_DEVICES],
                                              NvU32 *vioDeviceCount);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_QueryTopology
    //!
    //!   Description: This API queries the valid SDI topologies.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [out] pNvVIOTopology     User passes the pointer to NVVIOTOPOLOGY to fetch all valid SDI topologies.
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_QueryTopology(NV_VIO_TOPOLOGY *pNvVIOTopology);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_EnumSignalFormats
    //!
    //!   Description: This API enumerates signal formats supported by Video I/O.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]   NvVioHandle          The caller provides the SDI device handle as input.
    //! \param [in]   enumIndex            Enumeration index
    //! \param [out]  pSignalFormatDetail  Pointer to receive detail or NULL
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_EnumSignalFormats(NvVioHandle hVioHandle,
                                                    NvU32 enumIndex,
                                                    NVVIOSIGNALFORMATDETAIL *pSignalFormatDetail);

    ///////////////////////////////////////////////////////////////////////////////
    //!   Function:    NvAPI_VIO_EnumDataFormats
    //!
    //!   Description: This API enumerates data formats supported by Video I/O.
    //!
    //! \deprecated  Do not use this function - it is deprecated in release 440.
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 190
    //!
    //! \param [in]  NvVioHandle         The caller provides the SDI device handle as input.
    //! \param [in]  enumIndex           Enumeration index
    //! \param [out] pDataFormatDetail   Pointer to receive detail or NULL
    //!
    //! \retval :: NVAPI_NOT_SUPPORTED   API is not supported
    //!
    ///////////////////////////////////////////////////////////////////////////////
    __nvapi_deprecated_function("Do not use this function - it is deprecated in release 440.")
        NVAPI_INTERFACE NvAPI_VIO_EnumDataFormats(NvVioHandle hVioHandle,
                                                  NvU32 enumIndex,
                                                  NVVIODATAFORMATDETAIL *pDataFormatDetail);

    //! @}

    ///////////////////////////////////////////////////////////////////////////////////
    //  CAMERA TEST API
    //  These APIs allows test apps to perform low level camera tests

    //! \addtogroup vidio
    //! @{
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_CreateConfigurationProfileRegistryKey
    //
    //! \fn NvAPI_Stereo_CreateConfigurationProfileRegistryKey(NV_STEREO_REGISTRY_PROFILE_TYPE registryProfileType)
    //!
    //! DESCRIPTION:   Creates new configuration registry key for current application.
    //!
    //!                If there is no configuration profile prior to the function call,
    //!                this API tries to create a new configuration profile registry key
    //!                for a given application and fill it with the default values.
    //!                If an application already has a configuration profile registry key, the API does nothing.
    //!                The name of the key is automatically set to the name of the executable that calls this function.
    //!                Because of this, the executable should have a distinct and unique name.
    //!                If the application is using only one version of DirectX, then the default profile type will be appropriate.
    //!                If the application is using more than one version of DirectX from the same executable,
    //!                it should use the appropriate profile type for each configuration profile.
    //!
    //! HOW TO USE:    When there is a need for an application to have default stereo parameter values,
    //!                use this function to create a key to store the values.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]    registryProfileType  Type of profile the application wants to create. It should be one of the symbolic constants defined in
    //!                                     ::NV_STEREO_REGISTRY_PROFILE_TYPE. Any other value will cause function to do nothing and return
    //!                                     ::NV_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED.
    //!
    //! \retval ::NVAPI_OK                                           Key exists in the registry.
    //! \retval ::NVAPI_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED   This profile type is not supported.
    //! \retval ::NVAPI_STEREO_REGISTRY_ACCESS_FAILED                Access to registry failed.
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED                       Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR
    //!
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup stereoapi
    //! Used in NvAPI_Stereo_CreateConfigurationProfileRegistryKey()
    typedef enum _NV_StereoRegistryProfileType
    {
        NVAPI_STEREO_DEFAULT_REGISTRY_PROFILE, //!< Default registry configuration profile.
        NVAPI_STEREO_DX9_REGISTRY_PROFILE,     //!< Separate registry configuration profile for a DirectX 9 executable.
        NVAPI_STEREO_DX10_REGISTRY_PROFILE     //!< Separate registry configuration profile for a DirectX 10 executable.
    } NV_STEREO_REGISTRY_PROFILE_TYPE;

    //! \ingroup stereoapi
    NVAPI_INTERFACE NvAPI_Stereo_CreateConfigurationProfileRegistryKey(NV_STEREO_REGISTRY_PROFILE_TYPE registryProfileType);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_DeleteConfigurationProfileRegistryKey
    //
    //! DESCRIPTION:   Removes configuration registry key for current application.
    //!
    //!                If an application already has a configuration profile prior to this function call,
    //!                the function attempts to remove the application's configuration profile registry key from the registry.
    //!                If there is no configuration profile registry key prior to the function call,
    //!                the function does nothing and does not report an error.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]   registryProfileType   Type of profile that the application wants to delete. This should be one of the symbolic
    //!                                     constants defined in ::NV_STEREO_REGISTRY_PROFILE_TYPE. Any other value will cause the function
    //!                                     to do nothing and return ::NV_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED.
    //!
    //! \retval ::NVAPI_OK                                           Key does not exist in the registry any more.
    //! \retval ::NVAPI_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED   This profile type is not supported.
    //! \retval ::NVAPI_STEREO_REGISTRY_ACCESS_FAILED                Access to registry failed.
    //! \retval ::NVAPI_API_NOT_INTIALIZED                           NVAPI is not initialized.
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED                       Stereo part of NVAPI is not initialized.
    //! \retval ::NVAPI_ERROR
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_DeleteConfigurationProfileRegistryKey(NV_STEREO_REGISTRY_PROFILE_TYPE registryProfileType);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_SetConfigurationProfileValue
    //
    //! \fn NvAPI_Stereo_SetConfigurationProfileValue(NV_STEREO_REGISTRY_PROFILE_TYPE registryProfileType, NV_STEREO_REGISTRY_ID valueRegistryID, void *pValue)
    //!
    //! DESCRIPTION:   This API sets the given parameter value under the application's registry key.
    //!
    //!                If the value does not exist under the application's registry key,
    //!                the value will be created under the key.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]     registryProfileType  The type of profile the application wants to access. It should be one of the
    //!                                      symbolic constants defined in ::NV_STEREO_REGISTRY_PROFILE_TYPE. Any other value
    //!                                      will cause function to do nothing and return ::NV_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED.
    //! \param [in]     valueRegistryID      ID of the value that is being set. It should be one of the symbolic constants defined in
    //!                                      ::NV_STEREO_REGISTRY_PROFILE_TYPE. Any other value will cause function to do nothing
    //!                                      and return ::NVAPI_STEREO_REGISTRY_VALUE_NOT_SUPPORTED.
    //! \param [in]     pValue               Address of the value that is being set. It should be either address of a DWORD or of a float,
    //!                                      dependent on the type of the stereo parameter whose value is being set. The API will then cast that
    //!                                      address to DWORD* and write whatever is in those 4 bytes as a DWORD to the registry.
    //!
    //! \retval ::NVAPI_OK                                           Value is written to registry.
    //! \retval ::NVAPI_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED   This profile type is not supported.
    //! \retval ::NVAPI_STEREO_REGISTRY_VALUE_NOT_SUPPORTED          This value is not supported.
    //! \retval ::NVAPI_STEREO_REGISTRY_ACCESS_FAILED                Access to registry failed.
    //! \retval ::NVAPI_API_NOT_INTIALIZED                           NVAPI is not initialized.
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED                       Stereo part of NVAPI is not initialized.
    //! \retval ::NVAPI_ERROR                                        Something is wrong (generic error).
    //
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup stereoapi
    //! Used in NvAPI_Stereo_SetConfigurationProfileValue()
    typedef enum _NV_StereoRegistryID
    {
        NVAPI_CONVERGENCE_ID,         //!< Symbolic constant for convergence registry ID.
        NVAPI_FRUSTUM_ADJUST_MODE_ID, //!< Symbolic constant for frustum adjust mode registry ID.
    } NV_STEREO_REGISTRY_ID;

    //! \ingroup stereoapi
    NVAPI_INTERFACE NvAPI_Stereo_SetConfigurationProfileValue(NV_STEREO_REGISTRY_PROFILE_TYPE registryProfileType, NV_STEREO_REGISTRY_ID valueRegistryID, void *pValue);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_DeleteConfigurationProfileValue
    //
    //! DESCRIPTION:   This API removes the given value from the application's configuration profile registry key.
    //!                If there is no such value, the function does nothing and does not report an error.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]     registryProfileType   The type of profile the application wants to access. It should be one of the
    //!                                       symbolic constants defined in ::NV_STEREO_REGISTRY_PROFILE_TYPE. Any other value will
    //!                                       cause function to do nothing and return ::NV_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED.
    //! \param [in]     valueRegistryID       ID of the value that is being deleted. It should be one of the symbolic constants defined in
    //!                                       ::NV_STEREO_REGISTRY_PROFILE_TYPE. Any other value will cause function to do nothing and return
    //!                                       ::NVAPI_STEREO_REGISTRY_VALUE_NOT_SUPPORTED.
    //!
    //! \retval ::NVAPI_OK                                           Value does not exist in registry any more.
    //! \retval ::NVAPI_STEREO_REGISTRY_PROFILE_TYPE_NOT_SUPPORTED   This profile type is not supported.
    //! \retval ::NVAPI_STEREO_REGISTRY_VALUE_NOT_SUPPORTED          This value is not supported.
    //! \retval ::NVAPI_STEREO_REGISTRY_ACCESS_FAILED                Access to registry failed.
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED                       Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_DeleteConfigurationProfileValue(NV_STEREO_REGISTRY_PROFILE_TYPE registryProfileType, NV_STEREO_REGISTRY_ID valueRegistryID);

    //! \addtogroup stereoapi
    //! @{

    typedef struct _NVAPI_STEREO_CAPS
    {
        NvU32 version;
        NvU32 supportsWindowedModeOff : 1;
        NvU32 supportsWindowedModeAutomatic : 1;
        NvU32 supportsWindowedModePersistent : 1;
        NvU32 reserved : 29; // must be 0
        NvU32 reserved2[3];  // must be 0
    } NVAPI_STEREO_CAPS_V1;

#define NVAPI_STEREO_CAPS_VER1 MAKE_NVAPI_VERSION(NVAPI_STEREO_CAPS, 1)

#define NVAPI_STEREO_CAPS_VER NVAPI_STEREO_CAPS_VER1


    typedef NVAPI_STEREO_CAPS_V1 NVAPI_STEREO_CAPS;

    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_GetStereoSupport
    //
    //! DESCRIPTION:  This API checks what kind of stereo support is currently supported on a particular display.
    //!               If the the display is prohibited from showing stereo (e.g. secondary in a multi-mon setup), we will
    //!               return 0 for all stereo modes (full screen exclusive, automatic windowed, persistent windowed).
    //!               Otherwise, we will check which stereo mode is supported. On 120Hz display, this will be what
    //!               the user chooses in control panel. On HDMI 1.4 display, persistent windowed mode is always assumed to be
    //!               supported. Note that this function does not check if the CURRENT RESOLUTION/REFRESH RATE can support
    //!               stereo. For HDMI 1.4, it is the app's responsibility to change the resolution/refresh rate to one that is
    //!               3D compatible. For 120Hz, the driver will ALWAYS force 120Hz anyway.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 304
    //!
    //! \param [in]     hMonitor handle to monitor that app is going to run on
    //! \param [out]    pCaps    Address where the result of the inquiry will be placed.
    //!                          *pCaps is defined in NVAPI_STEREO_CAPS.
    //! \return       This API can return any of the following error codes enumerated in #NvAPI_Status
    //! \retval ::NVAPI_OK
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_GetStereoSupport(__in NvMonitorHandle hMonitor, __out NVAPI_STEREO_CAPS *pCaps);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_DecreaseSeparation
    //
    //! DESCRIPTION:   This API decreases separation for the given device interface (just like the Ctrl+F3 hotkey).
    //!
    //! WHEN TO USE:   After the stereo handle for device interface is created via successfull call to the appropriate NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]   stereoHandle  Stereo handle that corresponds to the device interface.
    //!
    //! \retval ::NVAPI_OK - Decrease of separation percentage was successfull.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE - Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED - NVAPI not initialized.
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED - Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR - Something is wrong (generic error).
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_DecreaseSeparation(StereoHandle stereoHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_IncreaseSeparation
    //
    //! DESCRIPTION:   This API increases separation for the given device interface (just like the Ctrl+F4 hotkey).
    //!
    //! WHEN TO USE:   After the stereo handle for the device interface is created via successfull call to the appropriate NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]    stereoHandle  Stereo handle that corresponds to the device interface.
    //!
    //! \retval ::NVAPI_OK                               Increase of separation percentage was successfull.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE  Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED               NVAPI not initialized.
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED           Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR                            Something is wrong (generic error).
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_IncreaseSeparation(StereoHandle stereoHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_DecreaseConvergence
    //
    //! DESCRIPTION:   This API decreases convergence for the given device interface (just like the Ctrl+F5 hotkey).
    //!
    //! WHEN TO USE:   After the stereo handle for the device interface is created via successfull call to the appropriate NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]     stereoHandle  Stereo handle that corresponds to the device interface.
    //!
    //! \retval ::NVAPI_OK - Decrease of convergence was successfull.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE - Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED - NVAPI not initialized.
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED - Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR - Something is wrong (generic error).
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_DecreaseConvergence(StereoHandle stereoHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_IncreaseConvergence
    //
    //! DESCRIPTION:   This API increases convergence for given the device interface (just like the Ctrl+F5 hotkey).
    //!
    //! WHEN TO USE:   After the stereo handle for the device interface is created via successfull call to the appropriate NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]    stereoHandle  Stereo handle that corresponds to the device interface.
    //!
    //! \retval ::NVAPI_OK                               Increase of convergence was successfull.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE  Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED           Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_IncreaseConvergence(StereoHandle stereoHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_GetFrustumAdjustMode
    //
    //! \fn NvAPI_Stereo_GetFrustumAdjustMode(StereoHandle stereoHandle, NV_FRUSTUM_ADJUST_MODE *pFrustumAdjustMode)
    //! DESCRIPTION:   This API gets the current frustum adjust mode value.
    //!
    //! WHEN TO USE:   After the stereo handle for the device interface is created via successfull call to the appropriate NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]     stereoHandle         Stereo handle that corresponds to the device interface.
    //! \param [out]    pFrustumAdjustMode   Address of the NV_FRUSTUM_ADJUST_MODE type variable to store current frustum value in.
    //!
    //! \retval ::NVAPI_OK - Retrieval of frustum adjust mode was successfull.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE - Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED - NVAPI not initialized.
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED - Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR - Something is wrong (generic error).
    //!
    ///////////////////////////////////////////////////////////////////////////////

    //! \ingroup stereoapi
    //! Used in NvAPI_Stereo_GetFrustumAdjustMode().
    typedef enum _NV_FrustumAdjustMode
    {
        NVAPI_NO_FRUSTUM_ADJUST,  //!< Do not adjust frustum.
        NVAPI_FRUSTUM_STRETCH,    //!< Stretch images in X.
        NVAPI_FRUSTUM_CLEAR_EDGES //!< Clear corresponding edges for each eye.
    } NV_FRUSTUM_ADJUST_MODE;

    //! \ingroup stereoapi
    NVAPI_INTERFACE NvAPI_Stereo_GetFrustumAdjustMode(StereoHandle stereoHandle, NV_FRUSTUM_ADJUST_MODE *pFrustumAdjustMode);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_SetFrustumAdjustMode
    //
    //! DESCRIPTION:   This API sets the current frustum adjust mode value.
    //!
    //! WHEN TO USE:   After the stereo handle for the device interface is created via successfull call to the appropriate NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]     stereoHandle                Stereo handle that corresponds to the device interface.
    //! \param [in]     newFrustumAdjustModeValue   New value for frustum adjust mode. It should be one of the symbolic constants defined in
    //!                                             ::NV_FRUSTUM_ADJUST_MODE. Any other value will cause function to do nothing and return
    //!                                             ::NVAPI_STEREO_FRUSTUM_ADJUST_MODE_NOT_SUPPORTED.
    //!
    //! \retval ::NVAPI_OK                                         Retrieval of frustum adjust mode was successfull.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE            Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED                     Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_STEREO_FRUSTUM_ADJUST_MODE_NOT_SUPPORTED   Given frustum adjust mode is not supported.
    //! \retval ::NVAPI_ERROR
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_SetFrustumAdjustMode(StereoHandle stereoHandle, NV_FRUSTUM_ADJUST_MODE newFrustumAdjustModeValue);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_CaptureJpegImage
    //
    //! DESCRIPTION:   This API captures the current stereo image in JPEG stereo format with the given quality.
    //!                Only the last capture call per flip will be effective.
    //!
    //! WHEN TO USE:   After the stereo handle for the device interface is created via successfull call to the appropriate NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]     stereoHandle  Stereo handle that corresponds to the device interface.
    //! \param [in]     quality        Quality of the JPEG image to be captured. Integer value betweeen 0 and 100.
    //!
    //! \retval ::NVAPI_OK                              Image captured.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED
    //! \retval ::NVAPI_STEREO_PARAMETER_OUT_OF_RANGE   Given quality is out of [0..100] range.
    //! \retval ::NVAPI_ERROR
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_CaptureJpegImage(StereoHandle stereoHandle, NvU32 quality);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_InitActivation
    //
    //! DESCRIPTION:   This API allows an application to enable stereo viewing, without the need of a GUID/Key pair
    //!				   This API cannot be used to enable stereo viewing on 3DTV.
    //!
    //! HOW TO USE:    Call this function immediately after device creation, then follow with a reset. \n
    //!                Very generically:
    //!                Create Device->Create Stereo Handle->InitActivation->Reset Device
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! \since Release: 302
    //!
    //! \param [in]   stereoHandle            Stereo handle corresponding to the device interface.
    //! \param [in]   bDelayed				  Use delayed activation
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API,
    //!         they are listed below.
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED - Stereo part of NVAPI not initialized.
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////

    //! \addtogroup stereoapi
    //! @{

    //! InitActivation Flags
    typedef enum _NVAPI_STEREO_INIT_ACTIVATION_FLAGS
    {
        NVAPI_STEREO_INIT_ACTIVATION_IMMEDIATE = 0X00,
        NVAPI_STEREO_INIT_ACTIVATION_DELAYED = 0x01,
    } NVAPI_STEREO_INIT_ACTIVATION_FLAGS;

    NVAPI_INTERFACE NvAPI_Stereo_InitActivation(__in StereoHandle hStereoHandle, __in NVAPI_STEREO_INIT_ACTIVATION_FLAGS flags);

    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_Trigger_Activation
    //
    //! DESCRIPTION:   This API allows an application to trigger creation of a stereo desktop,
    //!				   in case the creation was stopped on application launch.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //! \since Release: 302
    //!
    //! \param [in]   stereoHandle   Stereo handle that corresponds to the device interface.
    //!
    //! \return This API can return any of the error codes enumerated in #NvAPI_Status.
    //!         If there are return error codes with specific meaning for this API,
    //!         they are listed below.
    //! \retval ::NVAPI_STEREO_INIT_ACTIVATION_NOT_DONE - Stereo InitActivation not called.
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED - Stereo part of NVAPI not initialized.
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_Trigger_Activation(__in StereoHandle hStereoHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_CapturePngImage
    //
    //! DESCRIPTION:   This API captures the current stereo image in PNG stereo format.
    //!                Only the last capture call per flip will be effective.
    //!
    //! WHEN TO USE:   After the stereo handle for the device interface is created via successfull call to the appropriate NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //! \param [in]     stereoHandle  Stereo handle corresponding to the device interface.
    //!
    //! \retval ::NVAPI_OK                               Image captured.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE  Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED           Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_CapturePngImage(StereoHandle stereoHandle);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_ReverseStereoBlitControl
    //
    //! DESCRIPTION:   This API turns on/off reverse stereo blit.
    //!
    //! HOW TO USE:    Use after the stereo handle for the device interface is created via successfull call to the appropriate
    //!                NvAPI_Stereo_CreateHandleFrom() function.
    //!                After reversed stereo blit control is turned on, blits from the stereo surface will
    //!                produce the right-eye image in the left side of the destination surface and the left-eye
    //!                image in the right side of the destination surface.
    //!
    //!                In DirectX 9, the destination surface must be created as the render target, and StretchRect must be used.
    //!                Conditions:
    //!                - DstWidth == 2*SrcWidth
    //!                - DstHeight == SrcHeight
    //!                - Src surface is the stereo surface.
    //!                - SrcRect must be {0,0,SrcWidth,SrcHeight}
    //!                - DstRect must be {0,0,DstWidth,DstHeight}
    //!
    //!                In DirectX 10, ResourceCopyRegion must be used.
    //!                Conditions:
    //!                - DstWidth == 2*SrcWidth
    //!                - DstHeight == SrcHeight
    //!                - dstX == 0,
    //!                - dstY == 0,
    //!                - dstZ == 0,
    //!                - SrcBox: left=top=front==0; right==SrcWidth; bottom==SrcHeight; back==1;
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 185
    //!
    //! \param [in]    stereoHandle  Stereo handle corresponding to the device interface.
    //! \param [in]    TurnOn         != 0 : Turns on \n
    //!                               == 0 : Turns off
    //!
    //!
    //! \retval ::NVAPI_OK                                Retrieval of frustum adjust mode was successfull.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE   Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED            Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_ReverseStereoBlitControl(StereoHandle hStereoHandle, NvU8 TurnOn);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_Stereo_SetNotificationMessage
    //
    //! DESCRIPTION:   This API is a Setup notification message that the stereo driver uses to notify the application
    //!                when the user changes the stereo driver state.
    //!
    //!                When the user changes the stereo state (Activated or Deactivated, separation or conversion)
    //!                the stereo driver posts a defined message with the following parameters:
    //!
    //!                lParam  is the current conversion. (Actual conversion is *(float*)&lParam )
    //!
    //!                wParam == MAKEWPARAM(l, h) where
    //!                - l == 0 if stereo is deactivated
    //!                - l == 1 if stereo is deactivated
    //!                - h is the current separation. (Actual separation is float(h*100.f/0xFFFF)
    //!
    //!                Call this API with NULL hWnd to prohibit notification.
    //!
    //! WHEN TO USE:   Use after the stereo handle for device interface is created via successful call to appropriate
    //!                NvAPI_Stereo_CreateHandleFrom() function.
    //!
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 180
    //!
    //!
    //! \param [in]     stereoHandle  Stereo handle corresponding to the device interface.
    //! \param [in]     hWnd          Window HWND that will be notified when the user changes the stereo driver state.
    //!                               Actual HWND must be cast to an NvU64.
    //! \param [in]     messageID     MessageID of the message that will be posted to hWnd
    //!
    //! \retval ::NVAPI_OK                                Notification set.
    //! \retval ::NVAPI_STEREO_INVALID_DEVICE_INTERFACE   Device interface is not valid. Create again, then attach again.
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_STEREO_NOT_INITIALIZED            Stereo part of NVAPI not initialized.
    //! \retval ::NVAPI_ERROR
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_Stereo_SetNotificationMessage(StereoHandle hStereoHandle, NvU64 hWnd, NvU64 messageID);

//! \ingroup stereoapi
#define NVAPI_STEREO_QUADBUFFERED_API_VERSION 0x2


    //! \ingroup stereoapi
    typedef enum _NV_StereoSwapChainMode
    {
        NVAPI_STEREO_SWAPCHAIN_DEFAULT = 0,
        NVAPI_STEREO_SWAPCHAIN_STEREO = 1,
        NVAPI_STEREO_SWAPCHAIN_MONO = 2,
    } NV_STEREO_SWAPCHAIN_MODE;

#if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__)
    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D1x_CreateSwapChain
    //
    //! DESCRIPTION: This API allows the user to create a mono or a stereo swap chain.
    //!
    //!          NOTE: NvAPI_D3D1x_CreateSwapChain is a wrapper of the method IDXGIFactory::CreateSwapChain which
    //!                additionally notifies the D3D driver of the mode in which stereo mode the swap chain is to be
    //!                created.
    //!
    //! \since Release: 285
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     hStereoHandle      Stereo handle that corresponds to the device interface.
    //!                                   A pointer to the device that will write 2D images to the swap chain.
    //! \param [in]     pDesc             A pointer to the swap-chain description (DXGI_SWAP_CHAIN_DESC). This parameter cannot be NULL.
    //! \param [out]    ppSwapChain       A pointer to the swap chain created.
    //! \param [in]     mode              The stereo mode fot the swap chain.
    //!                                   NVAPI_STEREO_SWAPCHAIN_DEFAULT
    //!                                   NVAPI_STEREO_SWAPCHAIN_STEREO
    //!                                   NVAPI_STEREO_SWAPCHAIN_MONO
    //!
    //! \retval ::NVAPI_OK                 The swap chain was created successfully.
    //! \retval ::NVAPI_ERROR              The operation failed.
    //!
    //! \ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D1x_CreateSwapChain(StereoHandle hStereoHandle,
                                                DXGI_SWAP_CHAIN_DESC *pDesc,
                                                IDXGISwapChain **ppSwapChain,
                                                NV_STEREO_SWAPCHAIN_MODE mode);

#endif // if defined(__d3d10_h__) || defined(__d3d10_1_h__) || defined(__d3d11_h__)

#if defined(_D3D9_H_) // NvAPI_D3D9_CreateSwapChain

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_D3D9_CreateSwapChain
    //
    //! DESCRIPTION: This API allows the user to create a mono or a stereo swap chain.
    //!
    //!          NOTE: NvAPI_D3D9_CreateSwapChain is a wrapper of the method IDirect3DDevice9::CreateAdditionalSwapChain which
    //!                additionally notifies the D3D driver if the swap chain creation mode must be stereo or mono.
    //!
    //!
    //! \since Release: 285
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      hStereoHandle            Stereo handle that corresponds to the device interface.
    //! \param [in, out] pPresentationParameters  A pointer to the swap-chain description (DXGI). This parameter cannot be NULL.
    //! \param [out]     ppSwapChain              A pointer to the swap chain created.
    //! \param [in]      mode                     The stereo mode for the swap chain.
    //!                                           NVAPI_STEREO_SWAPCHAIN_DEFAULT
    //!                                           NVAPI_STEREO_SWAPCHAIN_STEREO
    //!                                           NVAPI_STEREO_SWAPCHAIN_MONO
    //!
    //! \retval ::NVAPI_OK                        The swap chain creation was successful
    //! \retval ::NVAPI_ERROR                     The operation failed.
    //!
    //!\ingroup stereoapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_D3D9_CreateSwapChain(StereoHandle hStereoHandle,
                                               D3DPRESENT_PARAMETERS *pPresentationParameters,
                                               IDirect3DSwapChain9 **ppSwapChain,
                                               NV_STEREO_SWAPCHAIN_MODE mode);
#endif // if defined(_D3D9_H_) //NvAPI_D3D9_CreateSwapChain

    //! \addtogroup drsapi
    //! @{

    // GPU Profile APIs

    NV_DECLARE_HANDLE(NvDRSSessionHandle);
    NV_DECLARE_HANDLE(NvDRSProfileHandle);

#define NVAPI_DRS_GLOBAL_PROFILE ((NvDRSProfileHandle)-1)


#define NVAPI_SETTING_MAX_VALUES 100


    typedef enum _NVDRS_SETTING_TYPE
    {
        NVDRS_DWORD_TYPE,
        NVDRS_BINARY_TYPE,
        NVDRS_STRING_TYPE,
        NVDRS_WSTRING_TYPE
    } NVDRS_SETTING_TYPE;

    typedef enum _NVDRS_SETTING_LOCATION
    {
        NVDRS_CURRENT_PROFILE_LOCATION,
        NVDRS_GLOBAL_PROFILE_LOCATION,
        NVDRS_BASE_PROFILE_LOCATION,
        NVDRS_DEFAULT_PROFILE_LOCATION
    } NVDRS_SETTING_LOCATION;

    typedef struct _NVDRS_GPU_SUPPORT
    {
        NvU32 geforce : 1;
        NvU32 quadro : 1;
        NvU32 nvs : 1;
        NvU32 reserved4 : 1;
        NvU32 reserved5 : 1;
        NvU32 reserved6 : 1;
        NvU32 reserved7 : 1;
        NvU32 reserved8 : 1;
        NvU32 reserved9 : 1;
        NvU32 reserved10 : 1;
        NvU32 reserved11 : 1;
        NvU32 reserved12 : 1;
        NvU32 reserved13 : 1;
        NvU32 reserved14 : 1;
        NvU32 reserved15 : 1;
        NvU32 reserved16 : 1;
        NvU32 reserved17 : 1;
        NvU32 reserved18 : 1;
        NvU32 reserved19 : 1;
        NvU32 reserved20 : 1;
        NvU32 reserved21 : 1;
        NvU32 reserved22 : 1;
        NvU32 reserved23 : 1;
        NvU32 reserved24 : 1;
        NvU32 reserved25 : 1;
        NvU32 reserved26 : 1;
        NvU32 reserved27 : 1;
        NvU32 reserved28 : 1;
        NvU32 reserved29 : 1;
        NvU32 reserved30 : 1;
        NvU32 reserved31 : 1;
        NvU32 reserved32 : 1;
    } NVDRS_GPU_SUPPORT;

    //! Enum to decide on the datatype of setting value.
    typedef struct _NVDRS_BINARY_SETTING
    {
        NvU32 valueLength; //!< valueLength should always be in number of bytes.
        NvU8 valueData[NVAPI_BINARY_DATA_MAX];
    } NVDRS_BINARY_SETTING;

    typedef struct _NVDRS_SETTING_VALUES
    {
        NvU32 version;                  //!< Structure Version
        NvU32 numSettingValues;         //!< Total number of values available in a setting.
        NVDRS_SETTING_TYPE settingType; //!< Type of setting value.
        union                           //!< Setting can hold either DWORD or Binary value or string. Not mixed types.
        {
            NvU32 u32DefaultValue;                   //!< Accessing default DWORD value of this setting.
            NVDRS_BINARY_SETTING binaryDefaultValue; //!< Accessing default Binary value of this setting.
                                                     //!< Must be allocated by caller with valueLength specifying buffer size, or only valueLength will be filled in.
            NvAPI_UnicodeString wszDefaultValue;     //!< Accessing default unicode string value of this setting.
        };
        union                                 //!< Setting values can be of either DWORD, Binary values or String type,
        {                                     //!< NOT mixed types.
            NvU32 u32Value;                   //!< All possible DWORD values for a setting
            NVDRS_BINARY_SETTING binaryValue; //!< All possible Binary values for a setting
            NvAPI_UnicodeString wszValue;     //!< Accessing current unicode string value of this setting.
        } settingValues[NVAPI_SETTING_MAX_VALUES];
    } NVDRS_SETTING_VALUES;

//! Macro for constructing the version field of ::_NVDRS_SETTING_VALUES
#define NVDRS_SETTING_VALUES_VER MAKE_NVAPI_VERSION(NVDRS_SETTING_VALUES, 1)


    typedef struct _NVDRS_SETTING_V1
    {
        NvU32 version;                          //!< Structure Version
        NvAPI_UnicodeString settingName;        //!< String name of setting
        NvU32 settingId;                        //!< 32 bit setting Id
        NVDRS_SETTING_TYPE settingType;         //!< Type of setting value.
        NVDRS_SETTING_LOCATION settingLocation; //!< Describes where the value in CurrentValue comes from.
        NvU32 isCurrentPredefined;              //!< It is different than 0 if the currentValue is a predefined Value,
                                                //!< 0 if the currentValue is a user value.
        NvU32 isPredefinedValid;                //!< It is different than 0 if the PredefinedValue union contains a valid value.
        union                                   //!< Setting can hold either DWORD or Binary value or string. Not mixed types.
        {
            NvU32 u32PredefinedValue;                   //!< Accessing default DWORD value of this setting.
            NVDRS_BINARY_SETTING binaryPredefinedValue; //!< Accessing default Binary value of this setting.
                                                        //!< Must be allocated by caller with valueLength specifying buffer size,
                                                        //!< or only valueLength will be filled in.
            NvAPI_UnicodeString wszPredefinedValue;     //!< Accessing default unicode string value of this setting.
        };
        union //!< Setting can hold either DWORD or Binary value or string. Not mixed types.
        {
            NvU32 u32CurrentValue;                   //!< Accessing current DWORD value of this setting.
            NVDRS_BINARY_SETTING binaryCurrentValue; //!< Accessing current Binary value of this setting.
                                                     //!< Must be allocated by caller with valueLength specifying buffer size,
                                                     //!< or only valueLength will be filled in.
            NvAPI_UnicodeString wszCurrentValue;     //!< Accessing current unicode string value of this setting.
        };
    } NVDRS_SETTING_V1;

//! Macro for constructing the version field of ::_NVDRS_SETTING
#define NVDRS_SETTING_VER1 MAKE_NVAPI_VERSION(NVDRS_SETTING_V1, 1)


    typedef NVDRS_SETTING_V1 NVDRS_SETTING;
#define NVDRS_SETTING_VER NVDRS_SETTING_VER1


    typedef struct _NVDRS_APPLICATION_V1
    {
        NvU32 version;                        //!< Structure Version
        NvU32 isPredefined;                   //!< Is the application userdefined/predefined
        NvAPI_UnicodeString appName;          //!< String name of the Application
        NvAPI_UnicodeString userFriendlyName; //!< UserFriendly name of the Application
        NvAPI_UnicodeString launcher;         //!< Indicates the name (if any) of the launcher that starts the application
    } NVDRS_APPLICATION_V1;

    typedef struct _NVDRS_APPLICATION_V2
    {
        NvU32 version;                        //!< Structure Version
        NvU32 isPredefined;                   //!< Is the application userdefined/predefined
        NvAPI_UnicodeString appName;          //!< String name of the Application
        NvAPI_UnicodeString userFriendlyName; //!< UserFriendly name of the Application
        NvAPI_UnicodeString launcher;         //!< Indicates the name (if any) of the launcher that starts the Application
        NvAPI_UnicodeString fileInFolder;     //!< Select this application only if this file is found.
                                              //!< When specifying multiple files, separate them using the ':' character.
    } NVDRS_APPLICATION_V2;

    typedef struct _NVDRS_APPLICATION_V3
    {
        NvU32 version;                        //!< Structure Version
        NvU32 isPredefined;                   //!< Is the application userdefined/predefined
        NvAPI_UnicodeString appName;          //!< String name of the Application
        NvAPI_UnicodeString userFriendlyName; //!< UserFriendly name of the Application
        NvAPI_UnicodeString launcher;         //!< Indicates the name (if any) of the launcher that starts the Application
        NvAPI_UnicodeString fileInFolder;     //!< Select this application only if this file is found.
                                              //!< When specifying multiple files, separate them using the ':' character.
        NvU32 isMetro : 1;                    //!< Windows 8 style app
        NvU32 isCommandLine : 1;              //!< Command line parsing for the application name
        NvU32 reserved : 30;                  //!< Reserved. Should be 0.
    } NVDRS_APPLICATION_V3;

    typedef struct _NVDRS_APPLICATION_V4
    {
        NvU32 version;                        //!< Structure Version
        NvU32 isPredefined;                   //!< Is the application userdefined/predefined
        NvAPI_UnicodeString appName;          //!< String name of the Application
        NvAPI_UnicodeString userFriendlyName; //!< UserFriendly name of the Application
        NvAPI_UnicodeString launcher;         //!< Indicates the name (if any) of the launcher that starts the Application
        NvAPI_UnicodeString fileInFolder;     //!< Select this application only if this file is found.
                                              //!< When specifying multiple files, separate them using the ':' character.
        NvU32 isMetro : 1;                    //!< Windows 8 style app
        NvU32 isCommandLine : 1;              //!< Command line parsing for the application name
        NvU32 reserved : 30;                  //!< Reserved. Should be 0.
        NvAPI_UnicodeString commandLine;      //!< If isCommandLine is set to 0 this must be an empty. If isCommandLine is set to 1
                                              //!< this contains application's command line as if it was returned by GetCommandLineW.
    } NVDRS_APPLICATION_V4;

#define NVDRS_APPLICATION_VER_V1 MAKE_NVAPI_VERSION(NVDRS_APPLICATION_V1, 1)

#define NVDRS_APPLICATION_VER_V2 MAKE_NVAPI_VERSION(NVDRS_APPLICATION_V2, 2)

#define NVDRS_APPLICATION_VER_V3 MAKE_NVAPI_VERSION(NVDRS_APPLICATION_V3, 3)

#define NVDRS_APPLICATION_VER_V4 MAKE_NVAPI_VERSION(NVDRS_APPLICATION_V4, 4)


    typedef NVDRS_APPLICATION_V4 NVDRS_APPLICATION;
#define NVDRS_APPLICATION_VER NVDRS_APPLICATION_VER_V4


    typedef struct _NVDRS_PROFILE_V1
    {
        NvU32 version;                   //!< Structure Version
        NvAPI_UnicodeString profileName; //!< String name of the Profile
        NVDRS_GPU_SUPPORT gpuSupport;    //!< This read-only flag indicates the profile support on either
                                         //!< Quadro, or Geforce, or both.
        NvU32 isPredefined;              //!< Is the Profile user-defined, or predefined
        NvU32 numOfApps;                 //!< Total number of applications that belong to this profile. Read-only
        NvU32 numOfSettings;             //!< Total number of settings applied for this Profile. Read-only
    } NVDRS_PROFILE_V1;

    typedef NVDRS_PROFILE_V1 NVDRS_PROFILE;

//! Macro for constructing the version field of ::NVDRS_PROFILE
#define NVDRS_PROFILE_VER1 MAKE_NVAPI_VERSION(NVDRS_PROFILE_V1, 1)

#define NVDRS_PROFILE_VER NVDRS_PROFILE_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_CreateSession
    //
    //!   DESCRIPTION: This API allocates memory and initializes the session.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [out]  *phSession Return pointer to the session handle.
    //!
    //! \retval ::NVAPI_OK SUCCESS
    //! \retval ::NVAPI_ERROR: For miscellaneous errors.
    //
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_CreateSession(NvDRSSessionHandle *phSession);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_DestroySession
    //
    //!   DESCRIPTION: This API frees the allocation: cleanup of NvDrsSession.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in] hSession Input to the session handle.
    //!
    //! \retval ::NVAPI_OK SUCCESS
    //! \retval ::NVAPI_ERROR For miscellaneous errors.
    //
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_DestroySession(NvDRSSessionHandle hSession);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_LoadSettings
    //
    //!   DESCRIPTION: This API loads and parses the settings data.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in] hSession  Input to the session handle.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_LoadSettings(NvDRSSessionHandle hSession);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_SaveSettings
    //
    //!   DESCRIPTION: This API saves the settings data to the system.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in] hSession  Input to the session handle.
    //!
    //! \retval ::NVAPI_OK    SUCCESS
    //! \retval ::NVAPI_ERROR For miscellaneous errors.
    //
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_SaveSettings(NvDRSSessionHandle hSession);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_LoadSettingsFromFile
    //
    //!   DESCRIPTION: This API loads settings from the given file path.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession Input to the session handle
    //! \param [in]  fileName Binary File Name/Path
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_LoadSettingsFromFile(NvDRSSessionHandle hSession, NvAPI_UnicodeString fileName);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_SaveSettingsToFile
    //
    //!   DESCRIPTION: This API saves settings to the given file path.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession  Input to the session handle.
    //! \param [in]  fileName  Binary File Name/Path
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_SaveSettingsToFile(NvDRSSessionHandle hSession, NvAPI_UnicodeString fileName);

    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_CreateProfile
    //
    //!   DESCRIPTION: This API creates an empty profile.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession        Input to the session handle.
    //! \param [in]  *pProfileInfo   Input pointer to NVDRS_PROFILE.
    //! \param [in]  *phProfile      Returns pointer to profile handle.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_CreateProfile(NvDRSSessionHandle hSession, NVDRS_PROFILE *pProfileInfo, NvDRSProfileHandle *phProfile);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_DeleteProfile
    //
    //!   DESCRIPTION: This API deletes a profile or sets it back to a predefined value.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in] hSession  Input to the session handle.
    //! \param [in] hProfile  Input profile handle.
    //!
    //! \retval ::NVAPI_OK     SUCCESS if the profile is found
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_DeleteProfile(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_SetCurrentGlobalProfile
    //
    //!   DESCRIPTION: This API sets the current global profile in the driver.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in] hSession                Input to the session handle.
    //! \param [in] wszGlobalProfileName    Input current Global profile name.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_SetCurrentGlobalProfile(NvDRSSessionHandle hSession, NvAPI_UnicodeString wszGlobalProfileName);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_GetCurrentGlobalProfile
    //
    //!   DESCRIPTION: This API returns the handle to the current global profile.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   hSession     Input to the session handle.
    //! \param [out]  *phProfile   Returns current Global profile handle.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_GetCurrentGlobalProfile(NvDRSSessionHandle hSession, NvDRSProfileHandle *phProfile);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_GetProfileInfo
    //
    //!   DESCRIPTION: This API gets information about the given profile. User needs to specify the name of the Profile.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession       Input to the session handle.
    //! \param [in]  hProfile       Input profile handle.
    //! \param [out] *pProfileInfo  Return the profile info.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_GetProfileInfo(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NVDRS_PROFILE *pProfileInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_SetProfileInfo
    //
    //!   DESCRIPTION: Specifies flags for a given profile. Currently only the NVDRS_GPU_SUPPORT is
    //!                used to update the profile. Neither the name, number of settings or applications
    //!                or other profile information can be changed with this function.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession       Input to the session handle.
    //! \param [in]  hProfile       Input profile handle.
    //! \param [in]  *pProfileInfo  Input the new profile info.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_SetProfileInfo(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NVDRS_PROFILE *pProfileInfo);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_FindProfileByName
    //
    //!   DESCRIPTION: This API finds a profile in the current session.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   hSession      Input to the session handle.
    //! \param [in]   profileName   Input profileName.
    //! \param [out]  phProfile     Input profile handle.
    //!
    //! \retval ::NVAPI_OK                SUCCESS if the profile is found
    //! \retval ::NVAPI_PROFILE_NOT_FOUND if profile is not found
    //! \retval ::NVAPI_ERROR             For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_FindProfileByName(NvDRSSessionHandle hSession, NvAPI_UnicodeString profileName, NvDRSProfileHandle *phProfile);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_EnumProfiles
    //
    //!   DESCRIPTION: This API enumerates through all the profiles in the session.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   hSession        Input to the session handle.
    //! \param [in]   index           Input the index for enumeration.
    //! \param [out]  *phProfile      Returns profile handle.
    //!
    //!   RETURN STATUS: NVAPI_OK: SUCCESS if the profile is found
    //!                  NVAPI_ERROR: For miscellaneous errors.
    //!                  NVAPI_END_ENUMERATION: index exceeds the total number of available Profiles in DB.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_EnumProfiles(NvDRSSessionHandle hSession, NvU32 index, NvDRSProfileHandle *phProfile);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_GetNumProfiles
    //
    //!   DESCRIPTION: This API obtains the number of profiles in the current session object.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession       Input to the session handle.
    //! \param out]  *numProfiles   Returns count of profiles in the current hSession.
    //!
    //! \retval ::NVAPI_OK                  SUCCESS
    //! \retval ::NVAPI_API_NOT_INTIALIZED  Failed to initialize.
    //! \retval ::NVAPI_INVALID_ARGUMENT    Invalid Arguments.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_GetNumProfiles(NvDRSSessionHandle hSession, NvU32 *numProfiles);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_CreateApplication
    //
    //!   DESCRIPTION: This API adds an executable name to a profile.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession       Input to the session handle.
    //! \param [in]  hProfile       Input profile handle.
    //! \param [in]  *pApplication  Input NVDRS_APPLICATION struct with the executable name to be added.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_CreateApplication(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NVDRS_APPLICATION *pApplication);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_DeleteApplicationEx
    //
    //!   DESCRIPTION: This API removes an executable from a profile.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   hSession  - Input to the session handle.
    //! \param [in]   hProfile  - Input profile handle.
    //! \param [in]   *pApp     - Input all the information about the application to be removed.
    //!
    //! \retval ::NVAPI_OK  SUCCESS
    //! \retval ::NVAPI_ERROR For miscellaneous errors.
    //! \retval ::NVAPI_EXECUTABLE_PATH_IS_AMBIGUOUS If the path provided could refer to two different executables,
    //!                                              this error will be returned.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_DeleteApplicationEx(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NVDRS_APPLICATION *pApp);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_DeleteApplication
    //
    //!   DESCRIPTION: This API removes an executable name from a profile.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSessionPARAMETERS   Input to the session handle.
    //! \param [in]  hProfile             Input profile handle.
    //! \param [in]  appName              Input the executable name to be removed.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //! \retval ::NVAPI_EXECUTABLE_PATH_IS_AMBIGUOUS If the path provided could refer to two different executables,
    //!                                              this error will be returned
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_DeleteApplication(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NvAPI_UnicodeString appName);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_GetApplicationInfo
    //
    //!   DESCRIPTION: This API gets information about the given application.  The input application name
    //!                must match exactly what the Profile has stored for the application.
    //!                This function is better used to retrieve application information from a previous
    //!                enumeration.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   hSession       Input to the session handle.
    //! \param [in]   hProfile       Input profile handle.
    //! \param [in]   appName        Input application name.
    //! \param [out]  *pApplication  Returns NVDRS_APPLICATION struct with all the attributes.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!          If there are return error codes with specific meaning for this API,
    //!          they are listed below.
    //! \retval ::NVAPI_EXECUTABLE_PATH_IS_AMBIGUOUS   The application name could not
    //                                                single out only one executable.
    //! \retval ::NVAPI_EXECUTABLE_NOT_FOUND           No application with that name is found on the profile.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_GetApplicationInfo(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NvAPI_UnicodeString appName, NVDRS_APPLICATION *pApplication);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_EnumApplications
    //
    //!   DESCRIPTION: This API enumerates all the applications in a given profile from the starting index to the maximum length.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      hSession         Input to the session handle.
    //! \param [in]      hProfile         Input profile handle.
    //! \param [in]      startIndex       Indicates starting index for enumeration.
    //! \param [in,out]  *appCount        Input maximum length of the passed in arrays. Returns the actual length.
    //! \param [out]     *pApplication    Returns NVDRS_APPLICATION struct with all the attributes.
    //!
    //! \retval ::NVAPI_OK               SUCCESS
    //! \retval ::NVAPI_ERROR            For miscellaneous errors.
    //! \retval ::NVAPI_END_ENUMERATION  startIndex exceeds the total appCount.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_EnumApplications(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NvU32 startIndex, NvU32 *appCount, NVDRS_APPLICATION *pApplication);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_FindApplicationByName
    //
    //!   DESCRIPTION: This API searches the application and the associated profile for the given application name.
    //!                If a fully qualified path is provided, this function will always return the profile
    //!                the driver will apply upon running the application (on the path provided).
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      hSession       Input to the hSession handle
    //! \param [in]      appName        Input appName. For best results, provide a fully qualified path of the type
    //!                                 c:/Folder1/Folder2/App.exe
    //! \param [out]     *phProfile     Returns profile handle.
    //! \param [in,out]  *pApplication  Returns NVDRS_APPLICATION struct pointer.
    //!
    //! \return  This API can return any of the error codes enumerated in #NvAPI_Status.
    //!                  If there are return error codes with specific meaning for this API,
    //!                  they are listed below:
    //! \retval ::NVAPI_APPLICATION_NOT_FOUND          If App not found
    //! \retval ::NVAPI_EXECUTABLE_PATH_IS_AMBIGUOUS   If the input appName was not fully qualified, this error might return in the case of multiple matches
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_FindApplicationByName(__in NvDRSSessionHandle hSession, __in NvAPI_UnicodeString appName, __out NvDRSProfileHandle *phProfile, __inout NVDRS_APPLICATION *pApplication);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_SetSetting
    //
    //!   DESCRIPTION: This API adds/modifies a setting to a profile.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession     Input to the session handle.
    //! \param [in]  hProfile     Input profile handle.
    //! \param [in]   *pSetting   Input NVDRS_SETTING struct pointer.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_SetSetting(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NVDRS_SETTING *pSetting);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_GetSetting
    //
    //!   DESCRIPTION: This API gets information about the given setting.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   hSession   Input to the session handle.
    //! \param [in]   hProfile   Input profile handle.
    //! \param [in]   settingId  Input settingId.
    //! \param [out]  *pSetting  Returns all the setting info
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_GetSetting(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NvU32 settingId, NVDRS_SETTING *pSetting);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_EnumSettings
    //
    //!   DESCRIPTION: This API enumerates all the settings of a given profile from startIndex to the maximum length.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      hSession        Input to the session handle.
    //! \param [in]      hProfile        Input profile handle.
    //! \param [in]      startIndex      Indicates starting index for enumeration.
    //! \param [in,out]  *settingsCount  Input max length of the passed in arrays, Returns the actual length.
    //! \param [out]     *pSetting       Returns all the settings info.
    //!
    //! \retval ::NVAPI_OK              SUCCESS
    //! \retval ::NVAPI_ERROR           For miscellaneous errors.
    //! \retval ::NVAPI_END_ENUMERATION startIndex exceeds the total appCount.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_EnumSettings(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NvU32 startIndex, NvU32 *settingsCount, NVDRS_SETTING *pSetting);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_EnumAvailableSettingIds
    //
    //!   DESCRIPTION: This API enumerates all the Ids of all the settings recognized by NVAPI.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [out]    pSettingIds     User-provided array of length *pMaxCount that NVAPI will fill with IDs.
    //! \param [in,out] pMaxCount       Input max length of the passed in array, Returns the actual length.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!                  NVAPI_END_ENUMERATION: the provided pMaxCount is not enough to hold all settingIds.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_EnumAvailableSettingIds(NvU32 *pSettingIds, NvU32 *pMaxCount);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_EnumAvailableSettingValues
    //
    //!   DESCRIPTION: This API enumerates all available setting values for a given setting.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]      settingId          Input settingId.
    //! \param [in,out]  pMaxNumValues      Input max length of the passed in arrays, Returns the actual length.
    //! \param [out]     *pSettingValues    Returns all available setting values and its count.
    //!
    //! \retval ::NVAPI_OK     SUCCESS
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_EnumAvailableSettingValues(NvU32 settingId, NvU32 *pMaxNumValues, NVDRS_SETTING_VALUES *pSettingValues);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_GetSettingIdFromName
    //
    //!   DESCRIPTION: This API gets the binary ID of a setting given the setting name.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]   settingName  Input Unicode settingName.
    //! \param [out]  *pSettingId  Returns corresponding settingId.
    //!
    //! \retval ::NVAPI_OK                 SUCCESS if the profile is found
    //! \retval ::NVAPI_PROFILE_NOT_FOUND  if profile is not found
    //! \retval ::NVAPI_SETTING_NOT_FOUND  if setting is not found
    //! \retval ::NVAPI_ERROR              For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_GetSettingIdFromName(NvAPI_UnicodeString settingName, NvU32 *pSettingId);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_GetSettingNameFromId
    //
    //!   DESCRIPTION: This API gets the setting name given the binary ID.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  settingId        Input settingId.
    //! \param [in]  *pSettingName    Returns corresponding Unicode settingName.
    //!
    //! \retval ::NVAPI_OK                 SUCCESS if the profile is found
    //! \retval ::NVAPI_PROFILE_NOT_FOUND  if profile is not found
    //! \retval ::NVAPI_SETTING_NOT_FOUND  if setting is not found
    //! \retval ::NVAPI_ERROR              For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_GetSettingNameFromId(NvU32 settingId, NvAPI_UnicodeString *pSettingName);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_DeleteProfileSetting
    //
    //!   DESCRIPTION: This API deletes a setting or sets it back to predefined value.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession            Input to the session handle.
    //! \param [in]  hProfile            Input profile handle.
    //! \param [in]  settingId           Input settingId to be deleted.
    //!
    //! \retval ::NVAPI_OK     SUCCESS if the profile is found
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_DeleteProfileSetting(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NvU32 settingId);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_RestoreAllDefaults
    //
    //!   DESCRIPTION: This API restores the whole system to predefined(default) values.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession  Input to the session handle.
    //!
    //! \retval ::NVAPI_OK     SUCCESS if the profile is found
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_RestoreAllDefaults(NvDRSSessionHandle hSession);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_RestoreProfileDefault
    //
    //!   DESCRIPTION: This API restores the given profile to predefined(default) values.
    //!                Any and all user specified modifications will be removed.
    //!                If the whole profile was set by the user, the profile will be removed.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession  Input to the session handle.
    //! \param [in]  hProfile  Input profile handle.
    //!
    //! \retval ::NVAPI_OK              SUCCESS if the profile is found
    //! \retval ::NVAPI_ERROR           For miscellaneous errors.
    //! \retval ::NVAPI_PROFILE_REMOVED SUCCESS, and the hProfile is no longer valid.
    //! \retval ::NVAPI_ERROR           For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_RestoreProfileDefault(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_RestoreProfileDefaultSetting
    //
    //!   DESCRIPTION: This API restores the given profile setting to predefined(default) values.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession  Input to the session handle.
    //! \param [in]  hProfile  Input profile handle.
    //! \param [in]  settingId Input settingId.
    //!
    //! \retval ::NVAPI_OK     SUCCESS if the profile is found
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_RestoreProfileDefaultSetting(NvDRSSessionHandle hSession, NvDRSProfileHandle hProfile, NvU32 settingId);

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_DRS_GetBaseProfile
    //
    //!   DESCRIPTION: Returns the handle to the current global profile.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]  hSession    Input to the session handle.
    //! \param [in]  *phProfile   Returns Base profile handle.
    //!
    //! \retval ::NVAPI_OK     SUCCESS if the profile is found
    //! \retval ::NVAPI_ERROR  For miscellaneous errors.
    //!
    //! \ingroup drsapi
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_DRS_GetBaseProfile(NvDRSSessionHandle hSession, NvDRSProfileHandle *phProfile);

    //! \addtogroup sysgeneral
    //! @{

    typedef struct
    {
        NvU32 version;                        //!< structure version
        NvU32 vendorId;                       //!< Chipset vendor identification
        NvU32 deviceId;                       //!< Chipset device identification
        NvAPI_ShortString szVendorName;       //!< Chipset vendor Name
        NvAPI_ShortString szChipsetName;      //!< Chipset device Name
        NvU32 flags;                          //!< Chipset info flags - obsolete
        NvU32 subSysVendorId;                 //!< Chipset subsystem vendor identification
        NvU32 subSysDeviceId;                 //!< Chipset subsystem device identification
        NvAPI_ShortString szSubSysVendorName; //!< subsystem vendor Name
        NvU32 HBvendorId;                     //!< Host bridge vendor identification
        NvU32 HBdeviceId;                     //!< Host bridge device identification
        NvU32 HBsubSysVendorId;               //!< Host bridge subsystem vendor identification
        NvU32 HBsubSysDeviceId;               //!< Host bridge subsystem device identification

    } NV_CHIPSET_INFO_v4;

    typedef struct
    {
        NvU32 version;                        //!< structure version
        NvU32 vendorId;                       //!< vendor ID
        NvU32 deviceId;                       //!< device ID
        NvAPI_ShortString szVendorName;       //!< vendor Name
        NvAPI_ShortString szChipsetName;      //!< device Name
        NvU32 flags;                          //!< Chipset info flags - obsolete
        NvU32 subSysVendorId;                 //!< subsystem vendor ID
        NvU32 subSysDeviceId;                 //!< subsystem device ID
        NvAPI_ShortString szSubSysVendorName; //!< subsystem vendor Name
    } NV_CHIPSET_INFO_v3;

    typedef enum
    {
        NV_CHIPSET_INFO_HYBRID = 0x00000001,
    } NV_CHIPSET_INFO_FLAGS;

    typedef struct
    {
        NvU32 version;                   //!< structure version
        NvU32 vendorId;                  //!< vendor ID
        NvU32 deviceId;                  //!< device ID
        NvAPI_ShortString szVendorName;  //!< vendor Name
        NvAPI_ShortString szChipsetName; //!< device Name
        NvU32 flags;                     //!< Chipset info flags
    } NV_CHIPSET_INFO_v2;

    typedef struct
    {
        NvU32 version;                   // structure version
        NvU32 vendorId;                  // vendor ID
        NvU32 deviceId;                  // device ID
        NvAPI_ShortString szVendorName;  // vendor Name
        NvAPI_ShortString szChipsetName; // device Name
    } NV_CHIPSET_INFO_v1;

#define NV_CHIPSET_INFO_VER_1 MAKE_NVAPI_VERSION(NV_CHIPSET_INFO_v1, 1)

#define NV_CHIPSET_INFO_VER_2 MAKE_NVAPI_VERSION(NV_CHIPSET_INFO_v2, 2)

#define NV_CHIPSET_INFO_VER_3 MAKE_NVAPI_VERSION(NV_CHIPSET_INFO_v3, 3)

#define NV_CHIPSET_INFO_VER_4 MAKE_NVAPI_VERSION(NV_CHIPSET_INFO_v4, 4)


#define NV_CHIPSET_INFO NV_CHIPSET_INFO_v4

#define NV_CHIPSET_INFO_VER NV_CHIPSET_INFO_VER_4


    //! @}

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_SYS_GetChipSetInfo
    //
    //!  This function returns information about the system's chipset.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 95
    //!
    //! \retval  NVAPI_INVALID_ARGUMENT              pChipSetInfo is NULL.
    //! \retval  NVAPI_OK                           *pChipSetInfo is now set.
    //! \retval  NVAPI_INCOMPATIBLE_STRUCT_VERSION   NV_CHIPSET_INFO version not compatible with driver.
    //! \ingroup sysgeneral
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_SYS_GetChipSetInfo(NV_CHIPSET_INFO *pChipSetInfo);

    //! \ingroup sysgeneral
    //! Lid and dock information - used in NvAPI_GetLidDockInfo()
    typedef struct
    {
        NvU32 version; //! Structure version, constructed from the macro #NV_LID_DOCK_PARAMS_VER
        NvU32 currentLidState;
        NvU32 currentDockState;
        NvU32 currentLidPolicy;
        NvU32 currentDockPolicy;
        NvU32 forcedLidMechanismPresent;
        NvU32 forcedDockMechanismPresent;
    } NV_LID_DOCK_PARAMS;

//! ingroup sysgeneral
#define NV_LID_DOCK_PARAMS_VER MAKE_NVAPI_VERSION(NV_LID_DOCK_PARAMS, 1)

    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GetLidDockInfo
    //
    //! DESCRIPTION: This function returns the current lid and dock information.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 177
    //!
    //! \retval ::NVAPI_OK
    //! \retval ::NVAPI_ERROR
    //! \retval ::NVAPI_NOT_SUPPORTED
    //! \retval ::NVAPI_HANDLE_INVALIDATED
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //!
    //! \ingroup sysgeneral
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_SYS_GetLidAndDockInfo(NV_LID_DOCK_PARAMS *pLidAndDock);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_SYS_GetDisplayIdFromGpuAndOutputId
    //
    //! DESCRIPTION:     This API converts a Physical GPU handle and output ID to a
    //!                  display ID.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     hPhysicalGpu   Handle to the physical GPU
    //! \param [in]     outputId       Connected display output ID on the
    //!                                target GPU - must only have one bit set
    //! \param [out]    displayId      Pointer to an NvU32 which contains
    //!                                 the display ID
    //!
    //! \retval  ::NVAPI_OK - completed request
    //! \retval  ::NVAPI_API_NOT_INTIALIZED - NVAPI not initialized
    //! \retval  ::NVAPI_ERROR - miscellaneous error occurred
    //! \retval  ::NVAPI_INVALID_ARGUMENT - Invalid input parameter.
    //!
    //! \ingroup sysgeneral
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_SYS_GetDisplayIdFromGpuAndOutputId(NvPhysicalGpuHandle hPhysicalGpu, NvU32 outputId, NvU32 *displayId);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_SYS_GetGpuAndOutputIdFromDisplayId
    //
    //! DESCRIPTION:     This API converts a display ID to a Physical GPU handle and output ID.
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \param [in]     displayId       Display ID of display to retrieve
    //!                                 GPU and outputId for
    //! \param [out]    hPhysicalGpu    Handle to the physical GPU
    //! \param [out]    outputId )      Connected display output ID on the
    //!                                 target GPU will only have one bit set.
    //!
    //! \retval ::NVAPI_OK
    //! \retval ::NVAPI_API_NOT_INTIALIZED
    //! \retval ::NVAPI_ID_OUT_OF_RANGE    The DisplayId corresponds to a
    //!                                    display which is not within the
    //!                                    normal outputId range.
    //! \retval ::NVAPI_ERROR
    //! \retval ::NVAPI_INVALID_ARGUMENT
    //!
    //! \ingroup sysgeneral
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_SYS_GetGpuAndOutputIdFromDisplayId(NvU32 displayId, NvPhysicalGpuHandle *hPhysicalGpu, NvU32 *outputId);

    ///////////////////////////////////////////////////////////////////////////////
    // FUNCTION NAME:   NvAPI_SYS_GetPhysicalGpuFromDisplayId
    //
    //! \code
    //! DESCRIPTION:     This API retrieves the Physical GPU handle of the connected display
    //!
    //! \since Release: 313
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! PARAMETERS:      displayId(IN)     - Display ID of display to retrieve
    //!                                      GPU handle
    //!                  hPhysicalGpu(OUT) - Handle to the physical GPU
    //!
    //! RETURN STATUS:
    //!                  NVAPI_OK - completed request
    //!                  NVAPI_API_NOT_INTIALIZED - NVAPI not initialized
    //!                  NVAPI_ERROR - miscellaneous error occurred
    //!                  NVAPI_INVALID_ARGUMENT - Invalid input parameter.
    //! \endcode
    //! \ingroup sysgeneral
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_SYS_GetPhysicalGpuFromDisplayId(NvU32 displayId, NvPhysicalGpuHandle *hPhysicalGpu);

    typedef struct _NV_DISPLAY_DRIVER_INFO
    {
        NvU32 version;                                 //!< Structure Version.
        NvU32 driverVersion;                           //!< Contains the driver version after successful return.
        NvAPI_ShortString szBuildBranch;               //!< Contains the driver-branch string after successful return.
        NvU32 bIsDCHDriver : 1;                        //!< Contains the driver DCH status after successful return.
                                                       //!< Value of 1 means that this is DCH driver.
                                                       //!< Value of 0 means that this is not a DCH driver (NVAPI may be unable to query the DCH status of the driver due to some registry API errors, in that case the API will return with NVAPI_ERROR)
        NvU32 bIsNVIDIAStudioPackage : 1;              //!< On successful return, this field provides information about whether the installed driver is from an NVIDIA Studio Driver package.
                                                       //!< Value of 1 means that this driver is from the NVIDIA Studio Driver package.
        NvU32 bIsNVIDIAGameReadyPackage : 1;           //!< On successful return, this field provides information about whether the installed driver is from an NVIDIA Game Ready Driver package.
                                                       //!< Value of 1 means that this driver is from the NVIDIA Game Ready Driver package.
        NvU32 bIsNVIDIARTXProductionBranchPackage : 1; //!< On successful return, this field confirms whether the installed driver package is from an NVIDIA RTX Enterprise Production Branch which offers ISV certifications, long life-cycle support, regular security updates, and access to the same functionality as corresponding NVIDIA Studio Driver Packages (i.e., of the same driver version number).
                                                       //!< Value of 1 means that this driver is from the NVIDIA RTX Enterprise Production Branch package.
        NvU32 bIsNVIDIARTXNewFeatureBranchPackage : 1; //!< On successful return, this field confirms whether the installed driver package is from an NVIDIA RTX New Feature Branch.
                                                       //!< This driver typically gives access to new features, bug fixes, new operating system support, and other driver enhancements offered between NVIDIA RTX Enterprise Production Branch releases. Support duration for NVIDIA RTX New Feature Branches is shorter than that for NVIDIA RTX Enterprise Production Branches.
                                                       //!< Value of 1 means that this driver is from the NVIDIA RTX New Feature Branch package.
        NvU32 reserved : 27;                           //!< Reserved for future use.
    } NV_DISPLAY_DRIVER_INFO_V1;

#define NV_DISPLAY_DRIVER_INFO_VER1 MAKE_NVAPI_VERSION(NV_DISPLAY_DRIVER_INFO_V1, 1)

    typedef NV_DISPLAY_DRIVER_INFO_V1 NV_DISPLAY_DRIVER_INFO;
#define NV_DISPLAY_DRIVER_INFO_VER NV_DISPLAY_DRIVER_INFO_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_SYS_GetDisplayDriverInfo
    //
    //! DESCRIPTION: This API will return information related to the NVIDIA Display Driver.
    //!              Note that out of the driver types - Studio, Game Ready, RTX Production Branch, RTX New Feature Branch - only one driver type can be available in system.
    //!              If NVAPI is unable to get the information of particular driver type, we report all flags as 0 (Unknown).
    //!
    //! SUPPORTED OS:  Windows 7 and higher
    //!
    //!
    //! \since Release: 396
    //!
    //! \param [inout] pDriverInfo - This structure will be filled with required information.
    //!
    //! \return  This API can return any of the error codes enumerated in
    //!          #NvAPI_Status.  If there are return error codes with specific
    //!          meaning for this API, they are listed below.
    //!
    //! \ingroup gpu
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_SYS_GetDisplayDriverInfo(__inout NV_DISPLAY_DRIVER_INFO *pDriverInfo);

    /*!
     * Callback settings common to all client callbacks.
     */
    typedef struct _NV_CLIENT_CALLBACK_SETTINGS_SUPER_V1
    {
        /*!
         * [in] Generic callback parameter which will be passed to the callback.
         */
        void *pCallbackParam;

        /*!
         * Reserved bytes for future expansion.
         */
        NvU8 rsvd[64];
    } NV_CLIENT_CALLBACK_SETTINGS_SUPER_V1;

    typedef NV_CLIENT_CALLBACK_SETTINGS_SUPER_V1 NV_GPU_CLIENT_CALLBACK_SETTINGS_SUPER_V1;

    /*!
     * Callback settings common to all periodic client callbacks.
     */
    typedef struct _NV_GPU_CLIENT_PERIODIC_CALLBACK_SETTINGS_SUPER_V1
    {
        /*!
         * [in] Super class data.
         */
        NV_GPU_CLIENT_CALLBACK_SETTINGS_SUPER_V1 super;

        /*!
         * [in] Minimum interval at which callback will be called.
         *
         * The callback may be invoked slower than this interval if underlying
         * sampling rate does not align precisely to the provided period.
         */
        NvU32 callbackPeriodms;

        /*!
         * Reserved bytes for future expansion.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_PERIODIC_CALLBACK_SETTINGS_SUPER_V1;

    /*!
     * Callback data common to all client callbacks.
     */
    typedef struct _NV_GPU_CLIENT_CALLBACK_DATA_SUPER_V1
    {
        /*!
         * [out] Generic callback parameter which was passed in at registration time.
         */
        void *pCallbackParam;

        /*!
         * Reserved bytes for future expansion.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_CALLBACK_DATA_SUPER_V1;

    /*!
     * Enumeration of different utilization domains
     */
    typedef enum _NV_GPU_CLIENT_UTIL_DOMAIN_ID
    {
        NV_GPU_CLIENT_UTIL_DOMAIN_GRAPHICS = 0,
        NV_GPU_CLIENT_UTIL_DOMAIN_FRAME_BUFFER = 1,
        NV_GPU_CLIENT_UTIL_DOMAIN_VIDEO = 2,
        /*!
         * Reserved for future use.
         */
        NV_GPU_CLIENT_UTIL_DOMAIN_RSVD = 3,
    } NV_GPU_CLIENT_UTIL_DOMAIN_ID;

#define NV_GPU_CLIENT_UTIL_DOMAINS_MAX_V1 (4)


    /*!
     * Data specific to a single utilization domain.
     */
    typedef struct _NV_GPU_CLIENT_UTILIZATION_DATA_V1
    {
        /*!
         * [out] Utilization domain identifier.
         */
        NV_GPU_CLIENT_UTIL_DOMAIN_ID utilId;

        /*!
         * [out] Percentage of time where the domain is considered busy since the
         * last sample. Units of percent*100; i.e. 5000 = 50%.
         */
        NvU32 utilizationPercent;

        /*!
         * Reserved bytes for future expansion.
         */
        NvU8 rsvd[61];
    } NV_GPU_CLIENT_UTILIZATION_DATA_V1;

    /*!
     * Data passed back to callback registered with
     * @ref NvAPI_GPU_ClientRegisterForUtilizationSampleUpdates.
     */
    typedef struct _NV_GPU_CLIENT_CALLBACK_UTILIZATION_DATA_V1
    {
        /*!
         * [out] Super struct.
         */
        NV_GPU_CLIENT_CALLBACK_DATA_SUPER_V1 super;

        /*!
         * [out] Number of valid entries in `utils` array.
         */
        NvU32 numUtils;

        /*!
         * [out] Time at which data was collected. Represented as elapsed
         * microseconds since 00:00:00 UTC on January 1, 1970.
         */
        NvU64 timestamp;

        /*!
         * Reserved bytes for future expansion.
         */
        NvU8 rsvd[64];

        /*!
         * [out] Status data for each utilization domain.
         */
        NV_GPU_CLIENT_UTILIZATION_DATA_V1 utils[NV_GPU_CLIENT_UTIL_DOMAINS_MAX_V1];
    } NV_GPU_CLIENT_CALLBACK_UTILIZATION_DATA_V1;

    /*!
     * Function prototype for a periodic utilization data callback that will be registered with NvAPI.
     */
    typedef void(__cdecl *NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_V1)(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_CLIENT_CALLBACK_UTILIZATION_DATA_V1 *pData);

    /*!
     * Data required to register a periodic callback for utilization data.
     */
    typedef struct _NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS_V1
    {
        /*!
         * [in] Structure Version, must always be first.
         */
        NvU32 version;

        /*!
         * [in] Generic callback settings. Some data within will be passed to the
         * callback when invoked.
         */
        NV_GPU_CLIENT_PERIODIC_CALLBACK_SETTINGS_SUPER_V1 super;

        /*!
         * [in] Callback. Pass in NULL or nullptr to indicate request to unregister.
         */
        NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_V1 callback;

        /*!
         * Reserved bytes for future expansion.
         */
        NvU8 rsvd[64];
    } NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS_V1;

#define NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS_VER1 MAKE_NVAPI_VERSION(NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS_V1, 1)

    typedef NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS_V1 NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS;
#define NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS_VER NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS_VER1


    ///////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTION NAME: NvAPI_GPU_ClientRegisterForUtilizationSampleUpdates
    //
    //! \fn NvAPI_GPU_ClientRegisterForUtilizationSampleUpdates()
    //! \code
    //!   DESCRIPTION: Register to receive samples of utilization data periodically
    //!                via a function pointer callback.
    //!
    //! SUPPORTED OS:  Windows 10 and higher
    //!
    //!
    //! \since Release 455
    //!
    //! \return        NVAPI_OK                          - Registration was successful
    //!                NVAPI_API_NOT_INITIALIZED         - NVAPI not initialized
    //!                NVAPI_INCOMPATIBLE_STRUCT_VERSION - Invalid structure version specified
    //!                NVAPI_INVALID_CONFIGURATION       - Invalid software environment configuration
    //!                NVAPI_TIMEOUT                     - Registration request timed out
    //!                NVAPI_ERROR                       - Unknown underlying error
    //!
    //! \endcode
    //! \ingroup nvtopps
    ///////////////////////////////////////////////////////////////////////////////
    NVAPI_INTERFACE NvAPI_GPU_ClientRegisterForUtilizationSampleUpdates(__in NvPhysicalGpuHandle hPhysicalGpu, __in NV_GPU_CLIENT_UTILIZATION_PERIODIC_CALLBACK_SETTINGS *pCallbackSettings);

#ifdef __cplusplus
}; // extern "C" {

#endif

#pragma pack(pop)

#endif // _NVAPI_H

#include "nvapi_lite_salend.h"