1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178

// Copyright (c) 2021 Via Technology Ltd. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//! FFI bindings for cl_d3d10.h  
//! cl_d3d11.h contains OpenCL extensions that provide interoperability with Direct3D 11.  
//! OpenCL extensions are documented in the [OpenCL-Registry](https://github.com/KhronosGroup/OpenCL-Registry)

#[allow(unused_imports)]
use super::error_codes::{CL_INVALID_VALUE, CL_SUCCESS};
pub use super::ffi::cl_d3d11::*;
#[allow(unused_imports)]
pub use cl_sys::{cl_device_id, cl_platform_id, cl_uint};
#[allow(unused_imports)]
use libc::c_void;
#[allow(unused_imports)]
use std::ptr;

#[cfg(feature = "cl_khr_d3d11_sharing")]
pub fn get_device_ids_from_dx3d11_khr(
    platform: cl_platform_id,
    d3d_device_source: cl_d3d11_device_source_khr,
    d3d_object: *mut c_void,
    d3d_device_set: cl_d3d11_device_set_khr,
) -> Result<Vec<cl_device_id>, cl_int> {
    let mut count: cl_uint = 0;
    let status: cl_int = unsafe {
        clGetDeviceIDsFromD3D11KHR(
            platform,
            d3d_device_source,
            d3d_object,
            d3d_device_set,
            0,
            ptr::null_mut(),
            &mut count,
        )
    };
    if CL_SUCCESS != status {
        Err(status)
    } else {
        if 0 < count {
            // Get the device ids.
            let len = count as usize;
            let mut ids: Vec<cl_device_id> = Vec::with_capacity(len);
            let status: cl_int = unsafe {
                clGetDeviceIDsFromD3D11KHR(
                    platform,
                    d3d_device_source,
                    d3d_object,
                    d3d_device_set,
                    count,
                    ids.as_mut_ptr(),
                    ptr::null_mut(),
                )
            };
            if CL_SUCCESS != status {
                Err(status)
            } else {
                Ok(ids)
            }
        } else {
            Ok(Vec::default())
        }
    }
}

#[cfg(feature = "cl_khr_d3d11_sharing")]
pub fn create_from_d3d11_buffer_khr(
    context: cl_context,
    flags: cl_mem_flags,
    resource: ID3D11Buffer_ptr,
) -> Result<cl_mem, cl_int> {
    let mut status: cl_int = CL_INVALID_VALUE;
    let mem = unsafe { clCreateFromD3D11BufferKHR(context, flags, resource, &mut status) };
    if CL_SUCCESS != status {
        Err(status)
    } else {
        Ok(mem)
    }
}

#[cfg(feature = "cl_khr_d3d11_sharing")]
pub fn create_from_d3d11_texture2d_khr(
    context: cl_context,
    flags: cl_mem_flags,
    resource: ID3D11Texture2D_ptr,
    subresource: cl_uint,
) -> Result<cl_mem, cl_int> {
    let mut status: cl_int = CL_INVALID_VALUE;
    let mem = unsafe {
        clCreateFromD3D11Texture2DKHR(context, flags, resource, subresource, &mut status)
    };
    if CL_SUCCESS != status {
        Err(status)
    } else {
        Ok(mem)
    }
}

#[cfg(feature = "cl_khr_d3d11_sharing")]
pub fn create_from_d3d11_texture3d_khr(
    context: cl_context,
    flags: cl_mem_flags,
    resource: ID3D11Texture3D_ptr,
    subresource: cl_uint,
) -> Result<cl_mem, cl_int> {
    let mut status: cl_int = CL_INVALID_VALUE;
    let mem = unsafe {
        clCreateFromD3D11Texture3DKHR(context, flags, resource, subresource, &mut status)
    };
    if CL_SUCCESS != status {
        Err(status)
    } else {
        Ok(mem)
    }
}

#[cfg(feature = "cl_khr_d3d11_sharing")]
pub fn enqueue_acquire_dx11_objects_khr(
    command_queue: cl_command_queue,
    num_objects: cl_uint,
    mem_objects: *const cl_mem,
    num_events_in_wait_list: cl_uint,
    event_wait_list: *const cl_event,
) -> Result<cl_event, cl_int> {
    let mut event: cl_event = ptr::null_mut();
    let status: cl_int = unsafe {
        clEnqueueAcquireD3D11ObjectsKHR(
            command_queue,
            num_objects,
            mem_objects,
            num_events_in_wait_list,
            event_wait_list,
            &mut event,
        )
    };
    if CL_SUCCESS != status {
        Err(status)
    } else {
        Ok(event)
    }
}

#[cfg(feature = "cl_khr_d3d11_sharing")]
pub fn enqueue_release_dx11_objects_khr(
    command_queue: cl_command_queue,
    num_objects: cl_uint,
    mem_objects: *const cl_mem,
    num_events_in_wait_list: cl_uint,
    event_wait_list: *const cl_event,
) -> Result<cl_event, cl_int> {
    let mut event: cl_event = ptr::null_mut();
    let status: cl_int = unsafe {
        clEnqueueReleaseD3D11ObjectsKHR(
            command_queue,
            num_objects,
            mem_objects,
            num_events_in_wait_list,
            event_wait_list,
            &mut event,
        )
    };
    if CL_SUCCESS != status {
        Err(status)
    } else {
        Ok(event)
    }
}