opencv/modules/ocl/perf/perf_fft.cpp

/*M///////////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2010-2012, Multicoreware, 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"

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

    int all_type[] = {CV_32FC2};
    std::string type_name[] = {"CV_32FC2"};

    for (int size = Min_Size; size <= Max_Size; size *= Multiple)
    {
        for (size_t j = 0; j < sizeof(all_type) / sizeof(int); j++)
        {
            SUBTEST << size << 'x' << size << "; " << type_name[j] << " ; complex-to-complex";

            gen(src, size, size, all_type[j], Scalar::all(0), Scalar::all(1));

            dft(src, dst);

            CPU_ON;
            dft(src, dst);
            CPU_OFF;

            d_src.upload(src);

            WARMUP_ON;
            ocl::dft(d_src, d_dst, Size(size, size));
            WARMUP_OFF;

            TestSystem::instance().setAccurate(ExpectedMatNear(dst, cv::Mat(d_dst), src.size().area() * 1e-4));

            GPU_ON;
            ocl::dft(d_src, d_dst, Size(size, size));
            GPU_OFF;

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

    }
}