1/*M///////////////////////////////////////////////////////////////////////////////////////
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8//
9//
10//                           License Agreement
11//                For Open Source Computer Vision Library
12//
13// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
14// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
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42
43#include "opencv2/opencv_modules.hpp"
44
45#ifndef HAVE_OPENCV_CUDEV
46
47#error "opencv_cudev is required"
48
49#else
50
51#include "opencv2/cudaarithm.hpp"
52#include "opencv2/cudev.hpp"
53#include "opencv2/core/private.cuda.hpp"
54
55using namespace cv;
56using namespace cv::cuda;
57using namespace cv::cudev;
58
59void cv::cuda::transpose(InputArray _src, OutputArray _dst, Stream& stream)
60{
61    GpuMat src = getInputMat(_src, stream);
62
63    const size_t elemSize = src.elemSize();
64
65    CV_Assert( elemSize == 1 || elemSize == 4 || elemSize == 8 );
66
67    GpuMat dst = getOutputMat(_dst, src.cols, src.rows, src.type(), stream);
68
69    if (elemSize == 1)
70    {
71        NppStreamHandler h(StreamAccessor::getStream(stream));
72
73        NppiSize sz;
74        sz.width  = src.cols;
75        sz.height = src.rows;
76
77        nppSafeCall( nppiTranspose_8u_C1R(src.ptr<Npp8u>(), static_cast<int>(src.step),
78            dst.ptr<Npp8u>(), static_cast<int>(dst.step), sz) );
79
80        if (!stream)
81            CV_CUDEV_SAFE_CALL( cudaDeviceSynchronize() );
82    }
83    else if (elemSize == 4)
84    {
85        gridTranspose(globPtr<int>(src), globPtr<int>(dst), stream);
86    }
87    else // if (elemSize == 8)
88    {
89        gridTranspose(globPtr<double>(src), globPtr<double>(dst), stream);
90    }
91
92    syncOutput(dst, _dst, stream);
93}
94
95#endif
96