nvapi_sys/
types.rs

1use std::os::raw::c_char;
2use std::mem::size_of;
3
4pub type NvBool = u8;
5
6pub const NV_TRUE: NvBool = 1;
7pub const NV_FALSE: NvBool = 0;
8
9/// A boolean containing reserved bits
10#[derive(Copy, Clone, Debug)]
11pub struct BoolU32(pub u32);
12
13impl BoolU32 {
14    pub fn get(&self) -> bool {
15        self.0 & 1 == 1
16    }
17
18    pub fn set(&mut self, value: bool) {
19        self.0 = self.0 & 0xffffffe | if value { NV_TRUE } else { NV_FALSE } as u32
20    }
21}
22
23nvstruct! {
24    pub struct NV_RECT {
25        pub left: u32,
26        pub top: u32,
27        pub right: u32,
28        pub bottom: u32,
29    }
30}
31
32pub const NVAPI_GENERIC_STRING_MAX: usize = 4096;
33pub const NVAPI_LONG_STRING_MAX: usize = 256;
34pub const NVAPI_SHORT_STRING_MAX: usize = 64;
35
36nvstruct! {
37    pub struct NvSBox {
38        pub sX: i32,
39        pub sY: i32,
40        pub sWidth: i32,
41        pub sHeight: i32,
42    }
43}
44
45nvstruct! {
46    pub struct NvGUID {
47        pub data1: u32,
48        pub data2: u16,
49        pub data3: u16,
50        pub data4: [u8; 8],
51    }
52}
53
54pub type NvLUID = NvGUID;
55
56pub const NVAPI_MAX_PHYSICAL_GPUS: usize = 64;
57
58pub const NVAPI_MAX_PHYSICAL_BRIDGES: usize = 100;
59pub const NVAPI_PHYSICAL_GPUS: usize = 32;
60pub const NVAPI_MAX_LOGICAL_GPUS: usize = 64;
61pub const NVAPI_MAX_AVAILABLE_GPU_TOPOLOGIES: usize = 256;
62pub const NVAPI_MAX_AVAILABLE_SLI_GROUPS: usize = 265;
63pub const NVAPI_MAX_GPU_TOPOLOGIES: usize = NVAPI_MAX_PHYSICAL_GPUS;
64pub const NVAPI_MAX_GPU_PER_TOPOLOGY: usize = 8;
65pub const NVAPI_MAX_DISPLAY_HEADS: usize = 2;
66pub const NVAPI_ADVANCED_DISPLAY_HEADS: usize = 4;
67pub const NVAPI_MAX_DISPLAYS: usize = NVAPI_PHYSICAL_GPUS * NVAPI_ADVANCED_DISPLAY_HEADS;
68pub const NVAPI_MAX_ACPI_IDS: usize = 16;
69pub const NVAPI_MAX_VIEW_MODES: usize = 8;
70pub const NVAPI_MAX_HEADS_PER_GPU: usize = 32;
71
72/// Maximum heads, each with `NVAPI_DESKTOP_RES` resolution
73pub const NV_MAX_HEADS: usize = 4;
74/// Maximum number of input video streams, each with a `NVAPI_VIDEO_SRC_INFO`
75pub const NV_MAX_VID_STREAMS: usize = 4;
76/// Maximum number of output video profiles supported
77pub const NV_MAX_VID_PROFILES: usize = 4;
78
79pub const NVAPI_SYSTEM_MAX_DISPLAYS: usize = NVAPI_MAX_PHYSICAL_GPUS * NV_MAX_HEADS;
80
81pub const NVAPI_SYSTEM_MAX_HWBCS: usize = 128;
82pub const NVAPI_SYSTEM_HWBC_INVALID_ID: usize = 0xffffffff;
83pub const NVAPI_MAX_AUDIO_DEVICES: usize = 16;
84
85pub type NvAPI_String = [c_char; NVAPI_GENERIC_STRING_MAX];
86pub type NvAPI_LongString = [c_char; NVAPI_LONG_STRING_MAX];
87pub type NvAPI_ShortString = [c_char; NVAPI_SHORT_STRING_MAX];
88
89pub fn short_string() -> NvAPI_ShortString {
90    [0; NVAPI_SHORT_STRING_MAX]
91}
92
93pub fn long_string() -> NvAPI_LongString {
94    [0; NVAPI_LONG_STRING_MAX]
95}
96
97pub fn string() -> NvAPI_String {
98    [0; NVAPI_GENERIC_STRING_MAX]
99}
100
101/// NvAPI Version Definition
102///
103/// Maintain per structure specific version, meant to be a `const fn`.
104pub fn MAKE_NVAPI_VERSION<T>(ver: u16) -> u32 {
105    size_of::<T>() as u32 | (ver as u32) << 16
106}
107
108pub fn GET_NVAPI_VERSION(ver: u32) -> u16 {
109    (ver >> 16) as u16
110}
111
112pub fn GET_NVAPI_SIZE(ver: u32) -> usize {
113    ver as usize & 0xffff
114}
nvapi_sys/types.rs

nvapi_sys/
types.rs
