opencv/modules/ocl/src/pyrup.cpp

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// @Authors
//		Zhang Chunpeng chunpeng@multicorewareinc.com
//		Yao Wang, yao@multicorewareinc.com
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/* Haar features calculation */
//#define EMU

#include "precomp.hpp"

using namespace cv;
using namespace cv::ocl;
using namespace std;

namespace cv
{
    namespace ocl
    {
        extern const char *pyr_up;
        void pyrUp(const cv::ocl::oclMat &src, cv::ocl::oclMat &dst)
        {
            int depth = src.depth(), channels = src.channels();

            CV_Assert(depth == CV_8U || depth == CV_16U || depth == CV_16S || depth == CV_32F);
            CV_Assert(channels == 1 || channels == 3 || channels == 4);

            dst.create(src.rows * 2, src.cols * 2, src.type());

            Context *clCxt = src.clCxt;

            const std::string kernelName = "pyrUp";

            std::vector< pair<size_t, const void *> > args;
            args.push_back( make_pair( sizeof(cl_mem), (void *)&src.data));
            args.push_back( make_pair( sizeof(cl_mem), (void *)&dst.data));
            args.push_back( make_pair( sizeof(cl_int), (void *)&src.rows));
            args.push_back( make_pair( sizeof(cl_int), (void *)&dst.rows));
            args.push_back( make_pair( sizeof(cl_int), (void *)&src.cols));
            args.push_back( make_pair( sizeof(cl_int), (void *)&dst.cols));
            args.push_back( make_pair( sizeof(cl_int), (void *)&src.offset));
            args.push_back( make_pair( sizeof(cl_int), (void *)&dst.offset));
            args.push_back( make_pair( sizeof(cl_int), (void *)&src.step));
            args.push_back( make_pair( sizeof(cl_int), (void *)&dst.step));

            size_t globalThreads[3] = {dst.cols, dst.rows, 1};
            size_t localThreads[3]  = {16, 16, 1};


            openCLExecuteKernel(clCxt, &pyr_up, kernelName, globalThreads, localThreads, args, src.oclchannels(), src.depth());
        }
    }
}