/* * Copyright 1993-2014 NVIDIA Corporation. All rights reserved. * * NOTICE TO LICENSEE: * * This source code and/or documentation ("Licensed Deliverables") are * subject to NVIDIA intellectual property rights under U.S. and * international Copyright laws. * * These Licensed Deliverables contained herein is PROPRIETARY and * CONFIDENTIAL to NVIDIA and is being provided under the terms and * conditions of a form of NVIDIA software license agreement by and * between NVIDIA and Licensee ("License Agreement") or electronically * accepted by Licensee. Notwithstanding any terms or conditions to * the contrary in the License Agreement, reproduction or disclosure * of the Licensed Deliverables to any third party without the express * written consent of NVIDIA is prohibited. * * NOTWITHSTANDING ANY TERMS OR CONDITIONS TO THE CONTRARY IN THE * LICENSE AGREEMENT, NVIDIA MAKES NO REPRESENTATION ABOUT THE * SUITABILITY OF THESE LICENSED DELIVERABLES FOR ANY PURPOSE. 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These Licensed Deliverables are 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 Licensed Deliverables with * only those rights set forth herein. * * Any use of the Licensed Deliverables in individual and commercial * software must include, in the user documentation and internal * comments to the code, the above Disclaimer and U.S. Government End * Users Notice. */ #ifndef CUDAGL_H #define CUDAGL_H #include #include #if defined(__CUDA_API_VERSION_INTERNAL) || defined(__DOXYGEN_ONLY__) || defined(CUDA_ENABLE_DEPRECATED) #define __CUDA_DEPRECATED #elif defined(_MSC_VER) #define __CUDA_DEPRECATED __declspec(deprecated) #elif defined(__GNUC__) #define __CUDA_DEPRECATED __attribute__((deprecated)) #else #define __CUDA_DEPRECATED #endif #ifdef CUDA_FORCE_API_VERSION #error "CUDA_FORCE_API_VERSION is no longer supported." #endif #if defined(__CUDA_API_VERSION_INTERNAL) || defined(CUDA_API_PER_THREAD_DEFAULT_STREAM) #define __CUDA_API_PER_THREAD_DEFAULT_STREAM #define __CUDA_API_PTDS(api) api ## _ptds #define __CUDA_API_PTSZ(api) api ## _ptsz #else #define __CUDA_API_PTDS(api) api #define __CUDA_API_PTSZ(api) api #endif #define cuGLCtxCreate cuGLCtxCreate_v2 #define cuGLMapBufferObject __CUDA_API_PTDS(cuGLMapBufferObject_v2) #define cuGLMapBufferObjectAsync __CUDA_API_PTSZ(cuGLMapBufferObjectAsync_v2) #define cuGLGetDevices cuGLGetDevices_v2 #ifdef __cplusplus extern "C" { #endif /** * \file cudaGL.h * \brief Header file for the OpenGL interoperability functions of the * low-level CUDA driver application programming interface. */ /** * \defgroup CUDA_GL OpenGL Interoperability * \ingroup CUDA_DRIVER * * ___MANBRIEF___ OpenGL interoperability functions of the low-level CUDA * driver API (___CURRENT_FILE___) ___ENDMANBRIEF___ * * This section describes the OpenGL interoperability functions of the * low-level CUDA driver application programming interface. Note that mapping * of OpenGL resources is performed with the graphics API agnostic, resource * mapping interface described in \ref CUDA_GRAPHICS "Graphics Interoperability". * * @{ */ #if defined(_WIN32) #if !defined(WGL_NV_gpu_affinity) typedef void* HGPUNV; #endif #endif /* _WIN32 */ /** * \brief Registers an OpenGL buffer object * * Registers the buffer object specified by \p buffer for access by * CUDA. A handle to the registered object is returned as \p * pCudaResource. The register flags \p Flags specify the intended usage, * as follows: * * - ::CU_GRAPHICS_REGISTER_FLAGS_NONE: Specifies no hints about how this * resource will be used. It is therefore assumed that this resource will be * read from and written to by CUDA. This is the default value. * - ::CU_GRAPHICS_REGISTER_FLAGS_READ_ONLY: Specifies that CUDA * will not write to this resource. * - ::CU_GRAPHICS_REGISTER_FLAGS_WRITE_DISCARD: Specifies that * CUDA will not read from this resource and will write over the * entire contents of the resource, so none of the data previously * stored in the resource will be preserved. * * \param pCudaResource - Pointer to the returned object handle * \param buffer - name of buffer object to be registered * \param Flags - Register flags * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_INVALID_HANDLE, * ::CUDA_ERROR_ALREADY_MAPPED, * ::CUDA_ERROR_INVALID_CONTEXT, * \notefnerr * * \sa * ::cuGraphicsUnregisterResource, * ::cuGraphicsMapResources, * ::cuGraphicsResourceGetMappedPointer, * ::cudaGraphicsGLRegisterBuffer */ CUresult CUDAAPI cuGraphicsGLRegisterBuffer(CUgraphicsResource *pCudaResource, GLuint buffer, unsigned int Flags); /** * \brief Register an OpenGL texture or renderbuffer object * * Registers the texture or renderbuffer object specified by \p image for access by CUDA. * A handle to the registered object is returned as \p pCudaResource. * * \p target must match the type of the object, and must be one of ::GL_TEXTURE_2D, * ::GL_TEXTURE_RECTANGLE, ::GL_TEXTURE_CUBE_MAP, ::GL_TEXTURE_3D, ::GL_TEXTURE_2D_ARRAY, * or ::GL_RENDERBUFFER. * * The register flags \p Flags specify the intended usage, as follows: * * - ::CU_GRAPHICS_REGISTER_FLAGS_NONE: Specifies no hints about how this * resource will be used. It is therefore assumed that this resource will be * read from and written to by CUDA. This is the default value. * - ::CU_GRAPHICS_REGISTER_FLAGS_READ_ONLY: Specifies that CUDA * will not write to this resource. * - ::CU_GRAPHICS_REGISTER_FLAGS_WRITE_DISCARD: Specifies that * CUDA will not read from this resource and will write over the * entire contents of the resource, so none of the data previously * stored in the resource will be preserved. * - ::CU_GRAPHICS_REGISTER_FLAGS_SURFACE_LDST: Specifies that CUDA will * bind this resource to a surface reference. * - ::CU_GRAPHICS_REGISTER_FLAGS_TEXTURE_GATHER: Specifies that CUDA will perform * texture gather operations on this resource. * * The following image formats are supported. For brevity's sake, the list is abbreviated. * For ex., {GL_R, GL_RG} X {8, 16} would expand to the following 4 formats * {GL_R8, GL_R16, GL_RG8, GL_RG16} : * - GL_RED, GL_RG, GL_RGBA, GL_LUMINANCE, GL_ALPHA, GL_LUMINANCE_ALPHA, GL_INTENSITY * - {GL_R, GL_RG, GL_RGBA} X {8, 16, 16F, 32F, 8UI, 16UI, 32UI, 8I, 16I, 32I} * - {GL_LUMINANCE, GL_ALPHA, GL_LUMINANCE_ALPHA, GL_INTENSITY} X * {8, 16, 16F_ARB, 32F_ARB, 8UI_EXT, 16UI_EXT, 32UI_EXT, 8I_EXT, 16I_EXT, 32I_EXT} * * The following image classes are currently disallowed: * - Textures with borders * - Multisampled renderbuffers * * \param pCudaResource - Pointer to the returned object handle * \param image - name of texture or renderbuffer object to be registered * \param target - Identifies the type of object specified by \p image * \param Flags - Register flags * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_INVALID_HANDLE, * ::CUDA_ERROR_ALREADY_MAPPED, * ::CUDA_ERROR_INVALID_CONTEXT, * \notefnerr * * \sa * ::cuGraphicsUnregisterResource, * ::cuGraphicsMapResources, * ::cuGraphicsSubResourceGetMappedArray, * ::cudaGraphicsGLRegisterImage */ CUresult CUDAAPI cuGraphicsGLRegisterImage(CUgraphicsResource *pCudaResource, GLuint image, GLenum target, unsigned int Flags); #ifdef _WIN32 /** * \brief Gets the CUDA device associated with hGpu * * Returns in \p *pDevice the CUDA device associated with a \p hGpu, if * applicable. * * \param pDevice - Device associated with hGpu * \param hGpu - Handle to a GPU, as queried via ::WGL_NV_gpu_affinity() * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_INVALID_VALUE * \notefnerr * * \sa ::cuGLMapBufferObject, * ::cuGLRegisterBufferObject, ::cuGLUnmapBufferObject, * ::cuGLUnregisterBufferObject, ::cuGLUnmapBufferObjectAsync, * ::cuGLSetBufferObjectMapFlags, * ::cudaWGLGetDevice */ CUresult CUDAAPI cuWGLGetDevice(CUdevice *pDevice, HGPUNV hGpu); #endif /* _WIN32 */ /** * CUDA devices corresponding to an OpenGL device */ typedef enum CUGLDeviceList_enum { CU_GL_DEVICE_LIST_ALL = 0x01, /**< The CUDA devices for all GPUs used by the current OpenGL context */ CU_GL_DEVICE_LIST_CURRENT_FRAME = 0x02, /**< The CUDA devices for the GPUs used by the current OpenGL context in its currently rendering frame */ CU_GL_DEVICE_LIST_NEXT_FRAME = 0x03, /**< The CUDA devices for the GPUs to be used by the current OpenGL context in the next frame */ } CUGLDeviceList; /** * \brief Gets the CUDA devices associated with the current OpenGL context * * Returns in \p *pCudaDeviceCount the number of CUDA-compatible devices * corresponding to the current OpenGL context. Also returns in \p *pCudaDevices * at most cudaDeviceCount of the CUDA-compatible devices corresponding to * the current OpenGL context. If any of the GPUs being used by the current OpenGL * context are not CUDA capable then the call will return CUDA_ERROR_NO_DEVICE. * * The \p deviceList argument may be any of the following: * - ::CU_GL_DEVICE_LIST_ALL: Query all devices used by the current OpenGL context. * - ::CU_GL_DEVICE_LIST_CURRENT_FRAME: Query the devices used by the current OpenGL context to * render the current frame (in SLI). * - ::CU_GL_DEVICE_LIST_NEXT_FRAME: Query the devices used by the current OpenGL context to * render the next frame (in SLI). Note that this is a prediction, it can't be guaranteed that * this is correct in all cases. * * \param pCudaDeviceCount - Returned number of CUDA devices. * \param pCudaDevices - Returned CUDA devices. * \param cudaDeviceCount - The size of the output device array pCudaDevices. * \param deviceList - The set of devices to return. * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_NO_DEVICE, * ::CUDA_ERROR_INVALID_VALUE, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_INVALID_GRAPHICS_CONTEXT * * \notefnerr * * \sa * ::cuWGLGetDevice, * ::cudaGLGetDevices */ CUresult CUDAAPI cuGLGetDevices(unsigned int *pCudaDeviceCount, CUdevice *pCudaDevices, unsigned int cudaDeviceCount, CUGLDeviceList deviceList); /** * \defgroup CUDA_GL_DEPRECATED OpenGL Interoperability [DEPRECATED] * * ___MANBRIEF___ deprecated OpenGL interoperability functions of the low-level * CUDA driver API (___CURRENT_FILE___) ___ENDMANBRIEF___ * * This section describes deprecated OpenGL interoperability functionality. * * @{ */ /** Flags to map or unmap a resource */ typedef enum CUGLmap_flags_enum { CU_GL_MAP_RESOURCE_FLAGS_NONE = 0x00, CU_GL_MAP_RESOURCE_FLAGS_READ_ONLY = 0x01, CU_GL_MAP_RESOURCE_FLAGS_WRITE_DISCARD = 0x02, } CUGLmap_flags; /** * \brief Create a CUDA context for interoperability with OpenGL * * \deprecated This function is deprecated as of Cuda 5.0. * * This function is deprecated and should no longer be used. It is * no longer necessary to associate a CUDA context with an OpenGL * context in order to achieve maximum interoperability performance. * * \param pCtx - Returned CUDA context * \param Flags - Options for CUDA context creation * \param device - Device on which to create the context * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_INVALID_VALUE, * ::CUDA_ERROR_OUT_OF_MEMORY * \notefnerr * * \sa ::cuCtxCreate, ::cuGLInit, ::cuGLMapBufferObject, * ::cuGLRegisterBufferObject, ::cuGLUnmapBufferObject, * ::cuGLUnregisterBufferObject, ::cuGLMapBufferObjectAsync, * ::cuGLUnmapBufferObjectAsync, ::cuGLSetBufferObjectMapFlags, * ::cuWGLGetDevice */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLCtxCreate(CUcontext *pCtx, unsigned int Flags, CUdevice device ); /** * \brief Initializes OpenGL interoperability * * \deprecated This function is deprecated as of Cuda 3.0. * * Initializes OpenGL interoperability. This function is deprecated * and calling it is no longer required. It may fail if the needed * OpenGL driver facilities are not available. * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_UNKNOWN * \notefnerr * * \sa ::cuGLMapBufferObject, * ::cuGLRegisterBufferObject, ::cuGLUnmapBufferObject, * ::cuGLUnregisterBufferObject, ::cuGLMapBufferObjectAsync, * ::cuGLUnmapBufferObjectAsync, ::cuGLSetBufferObjectMapFlags, * ::cuWGLGetDevice */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLInit(void); /** * \brief Registers an OpenGL buffer object * * \deprecated This function is deprecated as of Cuda 3.0. * * Registers the buffer object specified by \p buffer for access by * CUDA. This function must be called before CUDA can map the buffer * object. There must be a valid OpenGL context bound to the current * thread when this function is called, and the buffer name is * resolved by that context. * * \param buffer - The name of the buffer object to register. * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_ALREADY_MAPPED * \notefnerr * * \sa ::cuGraphicsGLRegisterBuffer */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLRegisterBufferObject(GLuint buffer); /** * \brief Maps an OpenGL buffer object * * \deprecated This function is deprecated as of Cuda 3.0. * * Maps the buffer object specified by \p buffer into the address space of the * current CUDA context and returns in \p *dptr and \p *size the base pointer * and size of the resulting mapping. * * There must be a valid OpenGL context bound to the current thread * when this function is called. This must be the same context, or a * member of the same shareGroup, as the context that was bound when * the buffer was registered. * * All streams in the current CUDA context are synchronized with the * current GL context. * * \param dptr - Returned mapped base pointer * \param size - Returned size of mapping * \param buffer - The name of the buffer object to map * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_INVALID_VALUE, * ::CUDA_ERROR_MAP_FAILED * \notefnerr * * \sa ::cuGraphicsMapResources */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLMapBufferObject(CUdeviceptr *dptr, size_t *size, GLuint buffer); /** * \brief Unmaps an OpenGL buffer object * * \deprecated This function is deprecated as of Cuda 3.0. * * Unmaps the buffer object specified by \p buffer for access by CUDA. * * There must be a valid OpenGL context bound to the current thread * when this function is called. This must be the same context, or a * member of the same shareGroup, as the context that was bound when * the buffer was registered. * * All streams in the current CUDA context are synchronized with the * current GL context. * * \param buffer - Buffer object to unmap * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_INVALID_VALUE * \notefnerr * * \sa ::cuGraphicsUnmapResources */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLUnmapBufferObject(GLuint buffer); /** * \brief Unregister an OpenGL buffer object * * \deprecated This function is deprecated as of Cuda 3.0. * * Unregisters the buffer object specified by \p buffer. This * releases any resources associated with the registered buffer. * After this call, the buffer may no longer be mapped for access by * CUDA. * * There must be a valid OpenGL context bound to the current thread * when this function is called. This must be the same context, or a * member of the same shareGroup, as the context that was bound when * the buffer was registered. * * \param buffer - Name of the buffer object to unregister * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_INVALID_VALUE * \notefnerr * * \sa ::cuGraphicsUnregisterResource */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLUnregisterBufferObject(GLuint buffer); /** * \brief Set the map flags for an OpenGL buffer object * * \deprecated This function is deprecated as of Cuda 3.0. * * Sets the map flags for the buffer object specified by \p buffer. * * Changes to \p Flags will take effect the next time \p buffer is mapped. * The \p Flags argument may be any of the following: * - ::CU_GL_MAP_RESOURCE_FLAGS_NONE: Specifies no hints about how this * resource will be used. It is therefore assumed that this resource will be * read from and written to by CUDA kernels. This is the default value. * - ::CU_GL_MAP_RESOURCE_FLAGS_READ_ONLY: Specifies that CUDA kernels which * access this resource will not write to this resource. * - ::CU_GL_MAP_RESOURCE_FLAGS_WRITE_DISCARD: Specifies that CUDA kernels * which access this resource will not read from this resource and will * write over the entire contents of the resource, so none of the data * previously stored in the resource will be preserved. * * If \p buffer has not been registered for use with CUDA, then * ::CUDA_ERROR_INVALID_HANDLE is returned. If \p buffer is presently * mapped for access by CUDA, then ::CUDA_ERROR_ALREADY_MAPPED is returned. * * There must be a valid OpenGL context bound to the current thread * when this function is called. This must be the same context, or a * member of the same shareGroup, as the context that was bound when * the buffer was registered. * * \param buffer - Buffer object to unmap * \param Flags - Map flags * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_HANDLE, * ::CUDA_ERROR_ALREADY_MAPPED, * ::CUDA_ERROR_INVALID_CONTEXT, * \notefnerr * * \sa ::cuGraphicsResourceSetMapFlags */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLSetBufferObjectMapFlags(GLuint buffer, unsigned int Flags); /** * \brief Maps an OpenGL buffer object * * \deprecated This function is deprecated as of Cuda 3.0. * * Maps the buffer object specified by \p buffer into the address space of the * current CUDA context and returns in \p *dptr and \p *size the base pointer * and size of the resulting mapping. * * There must be a valid OpenGL context bound to the current thread * when this function is called. This must be the same context, or a * member of the same shareGroup, as the context that was bound when * the buffer was registered. * * Stream \p hStream in the current CUDA context is synchronized with * the current GL context. * * \param dptr - Returned mapped base pointer * \param size - Returned size of mapping * \param buffer - The name of the buffer object to map * \param hStream - Stream to synchronize * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_INVALID_VALUE, * ::CUDA_ERROR_MAP_FAILED * \notefnerr * * \sa ::cuGraphicsMapResources */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLMapBufferObjectAsync(CUdeviceptr *dptr, size_t *size, GLuint buffer, CUstream hStream); /** * \brief Unmaps an OpenGL buffer object * * \deprecated This function is deprecated as of Cuda 3.0. * * Unmaps the buffer object specified by \p buffer for access by CUDA. * * There must be a valid OpenGL context bound to the current thread * when this function is called. This must be the same context, or a * member of the same shareGroup, as the context that was bound when * the buffer was registered. * * Stream \p hStream in the current CUDA context is synchronized with * the current GL context. * * \param buffer - Name of the buffer object to unmap * \param hStream - Stream to synchronize * * \return * ::CUDA_SUCCESS, * ::CUDA_ERROR_DEINITIALIZED, * ::CUDA_ERROR_NOT_INITIALIZED, * ::CUDA_ERROR_INVALID_CONTEXT, * ::CUDA_ERROR_INVALID_VALUE * \notefnerr * * \sa ::cuGraphicsUnmapResources */ __CUDA_DEPRECATED CUresult CUDAAPI cuGLUnmapBufferObjectAsync(GLuint buffer, CUstream hStream); /** @} */ /* END CUDA_GL_DEPRECATED */ /** @} */ /* END CUDA_GL */ #if defined(__CUDA_API_VERSION_INTERNAL) #undef cuGLCtxCreate #undef cuGLMapBufferObject #undef cuGLMapBufferObjectAsync #undef cuGLGetDevices CUresult CUDAAPI cuGLGetDevices(unsigned int *pCudaDeviceCount, CUdevice *pCudaDevices, unsigned int cudaDeviceCount, CUGLDeviceList deviceList); CUresult CUDAAPI cuGLMapBufferObject_v2(CUdeviceptr *dptr, size_t *size, GLuint buffer); CUresult CUDAAPI cuGLMapBufferObjectAsync_v2(CUdeviceptr *dptr, size_t *size, GLuint buffer, CUstream hStream); CUresult CUDAAPI cuGLCtxCreate(CUcontext *pCtx, unsigned int Flags, CUdevice device ); CUresult CUDAAPI cuGLMapBufferObject(CUdeviceptr_v1 *dptr, unsigned int *size, GLuint buffer); CUresult CUDAAPI cuGLMapBufferObjectAsync(CUdeviceptr_v1 *dptr, unsigned int *size, GLuint buffer, CUstream hStream); #endif /* __CUDA_API_VERSION_INTERNAL */ #ifdef __cplusplus }; #endif #undef __CUDA_DEPRECATED #endif