/*M///////////////////////////////////////////////////////////////////////////////////////
//
//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
//  By downloading, copying, installing or using the software you agree to this license.
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//
//                           License Agreement
//                For Open Source Computer Vision Library
//
// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// @Authors
//	   Chunpeng Zhang chunpeng@multicorewareinc.com
//
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
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//   * Redistribution's of source code must retain the above copyright notice,
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//   * The name of the copyright holders may not be used to endorse or promote products
//     derived from this software without specific prior written permission.
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// This software is provided by the copyright holders and contributors "as is" and
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//M*/

#include "precomp.hpp"
#include <iomanip>

#ifdef HAVE_OPENCL

PARAM_TEST_CASE(ColumnSum, cv::Size)
{
    cv::Size size;
    cv::Mat src;

    virtual void SetUp()
    {
        size = GET_PARAM(0);
    }
};

TEST_P(ColumnSum, Accuracy)
{
    cv::Mat src = randomMat(size, CV_32FC1);
    cv::ocl::oclMat d_dst;
    cv::ocl::oclMat d_src(src);

    cv::ocl::columnSum(d_src, d_dst);

    cv::Mat dst(d_dst);

    for (int j = 0; j < src.cols; ++j)
    {
        float gold = src.at<float>(0, j);
        float res = dst.at<float>(0, j);
        ASSERT_NEAR(res, gold, 1e-5);
    }

    for (int i = 1; i < src.rows; ++i)
    {
        for (int j = 0; j < src.cols; ++j)
        {
            float gold = src.at<float>(i, j) += src.at<float>(i - 1, j);
            float res = dst.at<float>(i, j);
            ASSERT_NEAR(res, gold, 1e-5);
        }
    }
}

INSTANTIATE_TEST_CASE_P(GPU_ImgProc, ColumnSum, DIFFERENT_SIZES);


#endif