opencv/modules/cudaarithm/src/cuda/transpose.cu

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#include "opencv2/opencv_modules.hpp"
#ifndef HAVE_OPENCV_CUDEV
#error "opencv_cudev is required"
#else
#include "opencv2/cudaarithm.hpp"
#include "opencv2/cudev.hpp"
#include "opencv2/core/private.cuda.hpp"
using namespace cv;
using namespace cv::cuda;
using namespace cv::cudev;
void cv::cuda::transpose(InputArray _src, OutputArray _dst, Stream& stream)
{
GpuMat src = getInputMat(_src, stream);
const size_t elemSize = src.elemSize();
CV_Assert( elemSize == 1 || elemSize == 4 || elemSize == 8 );
GpuMat dst = getOutputMat(_dst, src.cols, src.rows, src.type(), stream);
if (elemSize == 1)
{
NppStreamHandler h(StreamAccessor::getStream(stream));
NppiSize sz;
sz.width = src.cols;
sz.height = src.rows;
nppSafeCall( nppiTranspose_8u_C1R(src.ptr<Npp8u>(), static_cast<int>(src.step),
dst.ptr<Npp8u>(), static_cast<int>(dst.step), sz) );
if (!stream)
CV_CUDEV_SAFE_CALL( cudaDeviceSynchronize() );
}
else if (elemSize == 4)
{
gridTranspose(globPtr<int>(src), globPtr<int>(dst), stream);
}
else // if (elemSize == 8)
{
gridTranspose(globPtr<double>(src), globPtr<double>(dst), stream);
}
syncOutput(dst, _dst, stream);
}
#endif