mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
4.9 KiB
108 lines
4.9 KiB
/*M/////////////////////////////////////////////////////////////////////////////////////// |
|
// |
|
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
|
// |
|
// By downloading, copying, installing or using the software you agree to this license. |
|
// If you do not agree to this license, do not download, install, |
|
// copy or use the software. |
|
// |
|
// |
|
// License Agreement |
|
// For Open Source Computer Vision Library |
|
// |
|
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. |
|
// Copyright (C) 2009, Willow Garage Inc., all rights reserved. |
|
// Third party copyrights are property of their respective owners. |
|
// |
|
// Redistribution and use in source and binary forms, with or without modification, |
|
// are permitted provided that the following conditions are met: |
|
// |
|
// * Redistribution's of source code must retain the above copyright notice, |
|
// this list of conditions and the following disclaimer. |
|
// |
|
// * Redistribution's in binary form must reproduce the above copyright notice, |
|
// this list of conditions and the following disclaimer in the documentation |
|
// and/or other materials provided with the distribution. |
|
// |
|
// * The name of the copyright holders may not be used to endorse or promote products |
|
// derived from this software without specific prior written permission. |
|
// |
|
// This software is provided by the copyright holders and contributors "as is" and |
|
// any express or implied warranties, including, but not limited to, the implied |
|
// warranties of merchantability and fitness for a particular purpose are disclaimed. |
|
// In no event shall the Intel Corporation or contributors be liable for any direct, |
|
// indirect, incidental, special, exemplary, or consequential damages |
|
// (including, but not limited to, procurement of substitute goods or services; |
|
// loss of use, data, or profits; or business interruption) however caused |
|
// and on any theory of liability, whether in contract, strict liability, |
|
// or tort (including negligence or otherwise) arising in any way out of |
|
// the use of this software, even if advised of the possibility of such damage. |
|
// |
|
//M*/ |
|
|
|
#include "precomp.hpp" |
|
|
|
#if !defined HAVE_CUDA || defined(CUDA_DISABLER) |
|
|
|
void cv::gpu::resize(const GpuMat&, GpuMat&, Size, double, double, int, Stream&) { throw_nogpu(); } |
|
|
|
#else // HAVE_CUDA |
|
|
|
namespace cv { namespace gpu { namespace device |
|
{ |
|
template <typename T> |
|
void resize(const PtrStepSzb& src, const PtrStepSzb& srcWhole, int yoff, int xoff, const PtrStepSzb& dst, float fy, float fx, int interpolation, cudaStream_t stream); |
|
}}} |
|
|
|
void cv::gpu::resize(const GpuMat& src, GpuMat& dst, Size dsize, double fx, double fy, int interpolation, Stream& stream) |
|
{ |
|
typedef void (*func_t)(const PtrStepSzb& src, const PtrStepSzb& srcWhole, int yoff, int xoff, const PtrStepSzb& dst, float fy, float fx, int interpolation, cudaStream_t stream); |
|
static const func_t funcs[6][4] = |
|
{ |
|
{device::resize<uchar> , 0 /*device::resize<uchar2>*/ , device::resize<uchar3> , device::resize<uchar4> }, |
|
{0 /*device::resize<schar>*/, 0 /*device::resize<char2>*/ , 0 /*device::resize<char3>*/, 0 /*device::resize<char4>*/}, |
|
{device::resize<ushort> , 0 /*device::resize<ushort2>*/, device::resize<ushort3> , device::resize<ushort4> }, |
|
{device::resize<short> , 0 /*device::resize<short2>*/ , device::resize<short3> , device::resize<short4> }, |
|
{0 /*device::resize<int>*/ , 0 /*device::resize<int2>*/ , 0 /*device::resize<int3>*/ , 0 /*device::resize<int4>*/ }, |
|
{device::resize<float> , 0 /*device::resize<float2>*/ , device::resize<float3> , device::resize<float4> } |
|
}; |
|
|
|
CV_Assert( src.depth() <= CV_32F && src.channels() <= 4 ); |
|
CV_Assert( interpolation == INTER_NEAREST || interpolation == INTER_LINEAR || interpolation == INTER_CUBIC || interpolation == INTER_AREA ); |
|
CV_Assert( !(dsize == Size()) || (fx > 0 && fy > 0) ); |
|
|
|
if (dsize == Size()) |
|
{ |
|
dsize = Size(saturate_cast<int>(src.cols * fx), saturate_cast<int>(src.rows * fy)); |
|
} |
|
else |
|
{ |
|
fx = static_cast<double>(dsize.width) / src.cols; |
|
fy = static_cast<double>(dsize.height) / src.rows; |
|
} |
|
|
|
dst.create(dsize, src.type()); |
|
|
|
if (dsize == src.size()) |
|
{ |
|
if (stream) |
|
stream.enqueueCopy(src, dst); |
|
else |
|
src.copyTo(dst); |
|
return; |
|
} |
|
|
|
const func_t func = funcs[src.depth()][src.channels() - 1]; |
|
|
|
if (!func) |
|
CV_Error(CV_StsUnsupportedFormat, "Unsupported combination of source and destination types"); |
|
|
|
Size wholeSize; |
|
Point ofs; |
|
src.locateROI(wholeSize, ofs); |
|
PtrStepSzb wholeSrc(wholeSize.height, wholeSize.width, src.datastart, src.step); |
|
|
|
func(src, wholeSrc, ofs.y, ofs.x, dst, static_cast<float>(1.0 / fy), static_cast<float>(1.0 / fx), interpolation, StreamAccessor::getStream(stream)); |
|
} |
|
|
|
#endif // HAVE_CUDA
|
|
|