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#include "test_precomp.hpp"

#ifdef HAVE_CUDA

using namespace cvtest;

////////////////////////////////////////////////////////
// BilateralFilter

PARAM_TEST_CASE(BilateralFilter, cv::cuda::DeviceInfo, cv::Size, MatType)
{
    cv::cuda::DeviceInfo devInfo;
    cv::Size size;
    int type;
    int kernel_size;
    float sigma_color;
    float sigma_spatial;

    virtual void SetUp()
    {
        devInfo = GET_PARAM(0);
        size = GET_PARAM(1);
        type = GET_PARAM(2);

        kernel_size = 5;
        sigma_color = 10.f;
        sigma_spatial = 3.5f;

        cv::cuda::setDevice(devInfo.deviceID());
    }
};

CUDA_TEST_P(BilateralFilter, Accuracy)
{
    cv::Mat src = randomMat(size, type);

    src.convertTo(src, type);
    cv::cuda::GpuMat dst;

    cv::cuda::bilateralFilter(loadMat(src), dst, kernel_size, sigma_color, sigma_spatial);

    cv::Mat dst_gold;
    cv::bilateralFilter(src, dst_gold, kernel_size, sigma_color, sigma_spatial);

    EXPECT_MAT_NEAR(dst_gold, dst, src.depth() == CV_32F ? 1e-3 : 1.0);
}

INSTANTIATE_TEST_CASE_P(CUDA_ImgProc, BilateralFilter, testing::Combine(
    ALL_DEVICES,
    testing::Values(cv::Size(128, 128), cv::Size(113, 113), cv::Size(639, 481)),
    testing::Values(MatType(CV_8UC1), MatType(CV_8UC3), MatType(CV_32FC1), MatType(CV_32FC3))
    ));


#endif // HAVE_CUDA
