Graphics Interoperability

cuGraphicsMapResources cuGraphicsResourceGetMappedPointer cuGraphicsResourceSetMapFlags cuGraphicsSubResourceGetMappedArray cuGraphicsUnmapResources cuGraphicsUnregisterResource

CUresult cuGraphicsSubResourceGetMappedArray ( CUarray *  pArray, CUgraphicsResource  resource, unsigned int  arrayIndex, unsigned int  mipLevel   ) Returns in *pArray an array through which the subresource of the mapped graphics resource resource which corresponds to array index arrayIndex and mipmap level mipLevel may be accessed. The value set in *pArray may change every time that resource is mapped. If resource is not a texture then it cannot be accessed via an array and CUDA_ERROR_NOT_MAPPED_AS_ARRAY is returned. If arrayIndex is not a valid array index for resource then CUDA_ERROR_INVALID_VALUE is returned. If mipLevel is not a valid mipmap level for resource then CUDA_ERROR_INVALID_VALUE is returned. If resource is not mapped then CUDA_ERROR_NOT_MAPPED is returned. Parameters: pArray  - Returned array through which a subresource of resource may be accessed resource  - Mapped resource to access arrayIndex  - Array index for array textures or cubemap face index as defined by CUarray_cubemap_face for cubemap textures for the subresource to access mipLevel  - Mipmap level for the subresource 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_ARRAY Note: Note that this function may also return error codes from previous, asynchronous launches. See also: cuGraphicsResourceGetMappedPointer