opencv/modules/ocl/perf/perf_columnsum.cpp

/*M///////////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
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// @Authors
//    Fangfang Bai, fangfang@multicorewareinc.com
//    Jin Ma,       jin@multicorewareinc.com
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#include "precomp.hpp"

///////////// columnSum////////////////////////
PERFTEST(columnSum)
{
    Mat src, dst;
    ocl::oclMat d_src, d_dst;

    for (int size = Min_Size; size <= Max_Size; size *= Multiple)
    {
        SUBTEST << size << 'x' << size << "; CV_32FC1";

        gen(src, size, size, CV_32FC1, 0, 256);

        CPU_ON;
        dst.create(src.size(), src.type());
        for (int j = 0; j < src.cols; j++)
            dst.at<float>(0, j) = src.at<float>(0, j);

        for (int i = 1; i < src.rows; ++i)
        {for (int j = 0; j < src.cols; ++j)
            {
                dst.at<float>(i, j) = dst.at<float>(i - 1 , j) + src.at<float>(i , j);
            }
        }

        CPU_OFF;

        d_src.upload(src);
        WARMUP_ON;
        ocl::columnSum(d_src, d_dst);
        WARMUP_OFF;

        cv::Mat ocl_mat;
        d_dst.download(ocl_mat);
        TestSystem::instance().setAccurate(ExpectedMatNear(dst, ocl_mat, 5e-1));

        GPU_ON;
        ocl::columnSum(d_src, d_dst);
        GPU_OFF;

        GPU_FULL_ON;
        d_src.upload(src);
        ocl::columnSum(d_src, d_dst);
        d_dst.download(dst);
        GPU_FULL_OFF;
    }
}