OpenGL Interoperability

cudaGraphicsGLRegisterBuffer cudaGraphicsGLRegisterImage cudaWGLGetDevice

cudaError_t cudaGraphicsGLRegisterImage ( struct cudaGraphicsResource **  resource, GLuint  image, GLenum  target, unsigned int  flags   ) Registers the texture or renderbuffer object specified by image for access by CUDA. target must match the type of the object. A handle to the registered object is returned as resource. The register flags flags specify the intended usage, as follows: cudaGraphicsRegisterFlagsNone: 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. cudaGraphicsRegisterFlagsReadOnly: Specifies that CUDA will not write to this resource. cudaGraphicsRegisterFlagsWriteDiscard: 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. cudaGraphicsRegisterFlagsSurfaceLoadStore: Specifies that CUDA will bind this resource to a surface reference. The following image classes are currently disallowed: Textures with borders Multisampled renderbuffers Parameters: resource  - Pointer to the returned object handle image  - name of texture or renderbuffer object to be registered target  - Identifies the type of object specified by image, 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. flags  - Register flags Returns: cudaSuccess, cudaErrorInvalidDevice, cudaErrorInvalidValue, cudaErrorInvalidResourceHandle, cudaErrorUnknown Note: Note that this function may also return error codes from previous, asynchronous launches. See also: cudaGLSetGLDevice cudaGraphicsUnregisterResource, cudaGraphicsMapResources, cudaGraphicsSubResourceGetMappedArray