CUresult updateConstantMemory_drvapi(CUmodule module, float *hueCSC)
{
CUdeviceptr d_constHueCSC, d_constAlpha;
size_t d_cscBytes, d_alphaBytes;
// First grab the global device pointers from the CUBIN
cuModuleGetGlobal(&d_constHueCSC, &d_cscBytes , module, "constHueColorSpaceMat");
cuModuleGetGlobal(&d_constAlpha , &d_alphaBytes, module, "constAlpha");
CUresult error = CUDA_SUCCESS;
// Copy the constants to video memory
cuMemcpyHtoD(d_constHueCSC,
reinterpret_cast<const void *>(hueCSC),
d_cscBytes);
getLastCudaDrvErrorMsg("cuMemcpyHtoD (d_constHueCSC) copy to Constant Memory failed");
uint32 cudaAlpha = ((uint32)0xff<< 24);
cuMemcpyHtoD(d_constAlpha,
reinterpret_cast<const void *>(&cudaAlpha),
d_alphaBytes);
getLastCudaDrvErrorMsg("cuMemcpyHtoD (d_constAlpha) copy to Constant Memory failed");
return error;
}
void
ImageGL::registerAsCudaResource(int field_num)
{
// register the OpenGL resources that we'll use within CD
checkCudaErrors(cuGLRegisterBufferObject(gl_pbo_[field_num]));
getLastCudaDrvErrorMsg("cuGLRegisterBufferObject (gl_pbo_) failed");
bIsCudaResource_ = true;
}
