/*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 "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; namespace { template <typename T, typename D> void countNonZeroImpl(const GpuMat& _src, GpuMat& _dst, Stream& stream) { const GpuMat_<T>& src = (const GpuMat_<T>&) _src; GpuMat_<D>& dst = (GpuMat_<D>&) _dst; gridCountNonZero(src, dst, stream); } } void cv::cuda::countNonZero(InputArray _src, OutputArray _dst, Stream& stream) { typedef void (*func_t)(const GpuMat& src, GpuMat& dst, Stream& stream); static const func_t funcs[] = { countNonZeroImpl<uchar, int>, countNonZeroImpl<schar, int>, countNonZeroImpl<ushort, int>, countNonZeroImpl<short, int>, countNonZeroImpl<int, int>, countNonZeroImpl<float, int>, countNonZeroImpl<double, int>, }; GpuMat src = getInputMat(_src, stream); CV_Assert( src.depth() <= CV_64F ); CV_Assert( src.channels() == 1 ); GpuMat dst = getOutputMat(_dst, 1, 1, CV_32SC1, stream); const func_t func = funcs[src.depth()]; func(src, dst, stream); syncOutput(dst, _dst, stream); } int cv::cuda::countNonZero(InputArray _src) { Stream& stream = Stream::Null(); BufferPool pool(stream); GpuMat buf = pool.getBuffer(1, 1, CV_32SC1); countNonZero(_src, buf, stream); int data; buf.download(Mat(1, 1, CV_32SC1, &data)); return data; } #endif