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 "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 55 using namespace cv; 56 using namespace cv::cuda; 57 using namespace cv::cudev; 58 59 namespace 60 { 61 template <typename T, typename D> 62 void countNonZeroImpl(const GpuMat& _src, GpuMat& _dst, Stream& stream) 63 { 64 const GpuMat_<T>& src = (const GpuMat_<T>&) _src; 65 GpuMat_<D>& dst = (GpuMat_<D>&) _dst; 66 67 gridCountNonZero(src, dst, stream); 68 } 69 } 70 71 void cv::cuda::countNonZero(InputArray _src, OutputArray _dst, Stream& stream) 72 { 73 typedef void (*func_t)(const GpuMat& src, GpuMat& dst, Stream& stream); 74 static const func_t funcs[] = 75 { 76 countNonZeroImpl<uchar, int>, 77 countNonZeroImpl<schar, int>, 78 countNonZeroImpl<ushort, int>, 79 countNonZeroImpl<short, int>, 80 countNonZeroImpl<int, int>, 81 countNonZeroImpl<float, int>, 82 countNonZeroImpl<double, int>, 83 }; 84 85 GpuMat src = getInputMat(_src, stream); 86 87 CV_Assert( src.depth() <= CV_64F ); 88 CV_Assert( src.channels() == 1 ); 89 90 GpuMat dst = getOutputMat(_dst, 1, 1, CV_32SC1, stream); 91 92 const func_t func = funcs[src.depth()]; 93 func(src, dst, stream); 94 95 syncOutput(dst, _dst, stream); 96 } 97 98 int cv::cuda::countNonZero(InputArray _src) 99 { 100 Stream& stream = Stream::Null(); 101 102 BufferPool pool(stream); 103 GpuMat buf = pool.getBuffer(1, 1, CV_32SC1); 104 105 countNonZero(_src, buf, stream); 106 107 int data; 108 buf.download(Mat(1, 1, CV_32SC1, &data)); 109 110 return data; 111 } 112 113 #endif 114
