1 /*M/////////////////////////////////////////////////////////////////////////////////////// 2 // 3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 4 // 5 // By downloading, copying, installing or using the software you agree to this license. 6 // If you do not agree to this license, do not download, install, 7 // copy or use the software. 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. 15 // Third party copyrights are property of their respective owners. 16 // 17 // Redistribution and use in source and binary forms, with or without modification, 18 // are permitted provided that the following conditions are met: 19 // 20 // * Redistribution's of source code must retain the above copyright notice, 21 // this list of conditions and the following disclaimer. 22 // 23 // * Redistribution's in binary form must reproduce the above copyright notice, 24 // this list of conditions and the following disclaimer in the documentation 25 // and/or other materials provided with the distribution. 26 // 27 // * The name of the copyright holders may not be used to endorse or promote products 28 // derived from this software without specific prior written permission. 29 // 30 // This software is provided by the copyright holders and contributors "as is" and 31 // any express or implied warranties, including, but not limited to, the implied 32 // warranties of merchantability and fitness for a particular purpose are disclaimed. 33 // In no event shall the Intel Corporation or contributors be liable for any direct, 34 // indirect, incidental, special, exemplary, or consequential damages 35 // (including, but not limited to, procurement of substitute goods or services; 36 // loss of use, data, or profits; or business interruption) however caused 37 // and on any theory of liability, whether in contract, strict liability, 38 // or tort (including negligence or otherwise) arising in any way out of 39 // the use of this software, even if advised of the possibility of such damage. 40 // 41 //M*/ 42 43 #include "precomp.hpp" 44 45 #if !defined HAVE_CUDA || defined(CUDA_DISABLER) 46 47 void cv::cuda::resize(InputArray, OutputArray, Size, double, double, int, Stream&) { throw_no_cuda(); } 48 49 #else // HAVE_CUDA 50 51 namespace cv { namespace cuda { namespace device 52 { 53 template <typename T> 54 void resize(const PtrStepSzb& src, const PtrStepSzb& srcWhole, int yoff, int xoff, const PtrStepSzb& dst, float fy, float fx, int interpolation, cudaStream_t stream); 55 }}} 56 57 void cv::cuda::resize(InputArray _src, OutputArray _dst, Size dsize, double fx, double fy, int interpolation, Stream& stream) 58 { 59 GpuMat src = _src.getGpuMat(); 60 61 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); 62 static const func_t funcs[6][4] = 63 { 64 {device::resize<uchar> , 0 /*device::resize<uchar2>*/ , device::resize<uchar3> , device::resize<uchar4> }, 65 {0 /*device::resize<schar>*/, 0 /*device::resize<char2>*/ , 0 /*device::resize<char3>*/, 0 /*device::resize<char4>*/}, 66 {device::resize<ushort> , 0 /*device::resize<ushort2>*/, device::resize<ushort3> , device::resize<ushort4> }, 67 {device::resize<short> , 0 /*device::resize<short2>*/ , device::resize<short3> , device::resize<short4> }, 68 {0 /*device::resize<int>*/ , 0 /*device::resize<int2>*/ , 0 /*device::resize<int3>*/ , 0 /*device::resize<int4>*/ }, 69 {device::resize<float> , 0 /*device::resize<float2>*/ , device::resize<float3> , device::resize<float4> } 70 }; 71 72 CV_Assert( src.depth() <= CV_32F && src.channels() <= 4 ); 73 CV_Assert( interpolation == INTER_NEAREST || interpolation == INTER_LINEAR || interpolation == INTER_CUBIC || interpolation == INTER_AREA ); 74 CV_Assert( !(dsize == Size()) || (fx > 0 && fy > 0) ); 75 76 if (dsize == Size()) 77 { 78 dsize = Size(saturate_cast<int>(src.cols * fx), saturate_cast<int>(src.rows * fy)); 79 } 80 else 81 { 82 fx = static_cast<double>(dsize.width) / src.cols; 83 fy = static_cast<double>(dsize.height) / src.rows; 84 } 85 86 _dst.create(dsize, src.type()); 87 GpuMat dst = _dst.getGpuMat(); 88 89 if (dsize == src.size()) 90 { 91 src.copyTo(dst, stream); 92 return; 93 } 94 95 const func_t func = funcs[src.depth()][src.channels() - 1]; 96 97 if (!func) 98 CV_Error(Error::StsUnsupportedFormat, "Unsupported combination of source and destination types"); 99 100 Size wholeSize; 101 Point ofs; 102 src.locateROI(wholeSize, ofs); 103 PtrStepSzb wholeSrc(wholeSize.height, wholeSize.width, src.datastart, src.step); 104 105 func(src, wholeSrc, ofs.y, ofs.x, dst, static_cast<float>(1.0 / fy), static_cast<float>(1.0 / fx), interpolation, StreamAccessor::getStream(stream)); 106 } 107 108 #endif // HAVE_CUDA 109
