Graphics Interoperability

cuGraphicsMapResources cuGraphicsResourceGetMappedPointer cuGraphicsResourceSetMapFlags cuGraphicsSubResourceGetMappedArray cuGraphicsUnmapResources cuGraphicsUnregisterResource

CUresult cuGraphicsResourceGetMappedPointer ( CUdeviceptr *  pDevPtr, size_t *  pSize, CUgraphicsResource  resource   ) Returns in *pDevPtr a pointer through which the mapped graphics resource resource may be accessed. Returns in pSize the size of the memory in bytes which may be accessed from that pointer. The value set in pPointer may change every time that resource is mapped. If resource is not a buffer then it cannot be accessed via a pointer and CUDA_ERROR_NOT_MAPPED_AS_POINTER is returned. If resource is not mapped then CUDA_ERROR_NOT_MAPPED is returned. * Parameters: pDevPtr  - Returned pointer through which resource may be accessed pSize  - Returned size of the buffer accessible starting at *pPointer resource  - Mapped resource to access Returns: CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_NOT_MAPPED CUDA_ERROR_NOT_MAPPED_AS_POINTER Note: Note that this function may also return error codes from previous, asynchronous launches. See also: cuGraphicsMapResources, cuGraphicsSubResourceGetMappedArray