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#include "test_precomp.hpp"

using namespace cv;
using namespace cv::gpu;
using namespace cv::cudev;
using namespace cvtest;

TEST(Integral, _8u)
{
    const Size size = randomSize(100, 400);

    Mat src = randomMat(size, CV_8UC1);

    GpuMat_<uchar> d_src(src);

    GpuMat_<uint> dst = integral_(d_src);

    Mat dst_gold;
    cv::integral(src, dst_gold);

    dst_gold = dst_gold(Rect(1, 1, size.width, size.height));

    ASSERT_MAT_NEAR(dst_gold, dst, 0.0);
}

TEST(Integral, _32f)
{
    const Size size = randomSize(100, 400);

    Mat src = randomMat(size, CV_32FC1, 0, 1);

    GpuMat_<float> d_src(src);

    GpuMat_<float> dst = integral_(d_src);

    Mat dst_gold;
    cv::integral(src, dst_gold, CV_32F);

    dst_gold = dst_gold(Rect(1, 1, size.width, size.height));

    ASSERT_PRED_FORMAT2(cvtest::MatComparator(1e-5, 0), dst_gold, Mat(dst));
}

TEST(Integral, _8u_opt)
{
    const Size size(640, 480);

    Mat src = randomMat(size, CV_8UC1);

    GpuMat_<uchar> d_src(src);

    GpuMat_<uint> dst = integral_(d_src);

    Mat dst_gold;
    cv::integral(src, dst_gold);

    dst_gold = dst_gold(Rect(1, 1, size.width, size.height));

    ASSERT_MAT_NEAR(dst_gold, dst, 0.0);
}