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

#ifdef HAVE_OPENCL

using namespace cv;

extern std::string workdir;
PARAM_TEST_CASE(StereoMatchBM, int, int)
{
    int n_disp;
    int winSize;

    virtual void SetUp()
    {
        n_disp  = GET_PARAM(0);
		winSize = GET_PARAM(1);
    }
};

TEST_P(StereoMatchBM, Accuracy)
{

    Mat left_image  = readImage(workdir + "../ocl/aloe-L.png", IMREAD_GRAYSCALE);
    Mat right_image = readImage(workdir + "../ocl/aloe-R.png", IMREAD_GRAYSCALE);
    Mat disp_gold   = readImage(workdir + "../ocl/aloe-disp.png", IMREAD_GRAYSCALE);
	ocl::oclMat d_left, d_right;
	ocl::oclMat d_disp(left_image.size(), CV_8U);
	Mat  disp;

    ASSERT_FALSE(left_image.empty());
    ASSERT_FALSE(right_image.empty());
    ASSERT_FALSE(disp_gold.empty());
	d_left.upload(left_image);
	d_right.upload(right_image);

    ocl::StereoBM_OCL bm(0, n_disp, winSize);


    bm(d_left, d_right, d_disp);
	d_disp.download(disp);

    EXPECT_MAT_SIMILAR(disp_gold, disp, 1e-3);
}

INSTANTIATE_TEST_CASE_P(GPU_Calib3D, StereoMatchBM, testing::Combine(testing::Values(128),
	                                   testing::Values(19)));

#endif // HAVE_OPENCL