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92 lines
4.0 KiB
C++
92 lines
4.0 KiB
C++
/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
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// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// @Authors
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// Dachuan Zhao, dachuan@multicorewareinc.com
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// Yao Wang, yao@multicorewareinc.com
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//
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other oclMaterials provided with the distribution.
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//
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// * The name of the copyright holders may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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#include "precomp.hpp"
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#include "opencl_kernels.hpp"
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using namespace cv;
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using namespace cv::ocl;
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//////////////////////////////////////////////////////////////////////////////
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/////////////////////// add subtract multiply divide /////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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static void pyrdown_run(const oclMat &src, const oclMat &dst)
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{
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CV_Assert(src.type() == dst.type());
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CV_Assert(src.depth() != CV_8S);
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Context *clCxt = src.clCxt;
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string kernelName = "pyrDown";
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size_t localThreads[3] = { 256, 1, 1 };
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size_t globalThreads[3] = { src.cols, dst.rows, 1};
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vector<pair<size_t , const void *> > args;
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args.push_back( make_pair( sizeof(cl_mem), (void *)&src.data ));
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args.push_back( make_pair( sizeof(cl_int), (void *)&src.step ));
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args.push_back( make_pair( sizeof(cl_int), (void *)&src.rows));
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args.push_back( make_pair( sizeof(cl_int), (void *)&src.cols));
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args.push_back( make_pair( sizeof(cl_mem), (void *)&dst.data ));
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args.push_back( make_pair( sizeof(cl_int), (void *)&dst.step ));
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args.push_back( make_pair( sizeof(cl_int), (void *)&dst.cols));
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openCLExecuteKernel(clCxt, &pyr_down, kernelName, globalThreads, localThreads, args, src.oclchannels(), src.depth());
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}
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//////////////////////////////////////////////////////////////////////////////
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// pyrDown
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void cv::ocl::pyrDown(const oclMat &src, oclMat &dst)
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{
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int depth = src.depth(), channels = src.channels();
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CV_Assert(depth == CV_8U || depth == CV_16U || depth == CV_16S || depth == CV_32F);
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CV_Assert(channels == 1 || channels == 3 || channels == 4);
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dst.create((src.rows + 1) / 2, (src.cols + 1) / 2, src.type());
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pyrdown_run(src, dst);
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}
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