I have a GpuMat Image(H, W, CV_8UC3)
May I bind it using these function?
texture<uchar3, 2, cudaReadModeNormalizedFloat> rgbTex;
cudaChannelFormatDesc desc = cudaCreateChannelDesc<uchar3>();
cudaBindTexture2D(0, rgbTex, Image.data, desc, W, H, Image.step));The main problem is that you can't use GpuMat in .cu files (nvcc can't compile gpumat.hpp header). You can pass only GpuMat's members to functions from .cu file:
// .cu file
texture<uchar3, 2, cudaReadModeNormalizedFloat> rgbTex;
void cu_func(void* data, size_t step, int width, int height)
{
cudaChannelFormatDesc desc = cudaCreateChannelDesc<uchar3>();
cudaBindTexture2D(0, rgbTex, data, desc, width, height, step));
...
}
// .cpp file
void cu_func(void* data, size_t step, int width, int height);
void cpp_func(GpuMat Image)
{
cu_func(Image.data, Image.step, Image.cols, Image.rows);
}Yes. You can also use bindTexture function from common.hpp: cv::gpu::device::bindTexture(&tex, img);
Asked: Mar 18 '13
Seen: 3,183 times
Last updated: Mar 18 '13
