TestCanvas.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
 
#ifndef META_OCEAN_TEST_TESTCV_TEST_CANVAS_H
#define META_OCEAN_TEST_TESTCV_TEST_CANVAS_H
 
#include "ocean/test/testcv/TestCV.h"
 
namespace Ocean
{
 
namespace Test
{
 
namespace TestCV
{
 
/**
 * This class implements tests for the Canvas class.
 * @ingroup testcv
 */
class OCEAN_TEST_CV_EXPORT TestCanvas
{
    protected:
 
        /**
         * Definition of an unordered map mapping distances to pixel values.
         */
        using DistanceMap = std::unordered_map<CV::PixelPosition, const uint8_t*, CV::PixelPosition>;
 
    public:
 
        /**
         * Invokes all tests.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool test(const double testDuration);
 
        /**
         * Tests the color value functions.
         * @return True, if succeeded
         */
        static bool testColors();
 
        /**
         * Tests the line drawing function with pixel accuracy.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testLinePixelAccuracy(const double testDuration);
 
        /**
         * Tests the point function when using a point location without fraction (perfectly placed in the center of a pixel).
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testPointNoFraction(const double testDuration);
 
        /**
         * Tests the point function when using a point location with fraction (with arbitrary location).
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testPointWithFraction(const double testDuration);
 
    protected:
 
        /**
         * Returns the sum of squared differences between the color values of two pixels.
         * @param pixel0 The first pixel, must be valid
         * @param pixel1 The second pixel, must be valid
         * @param channels The number of channels, with range [1, infinity)
         */
        static unsigned int ssd(const uint8_t* pixel0, const uint8_t* pixel1, const unsigned int channels);
};
 
}
 
}
 
}
 
#endif // META_OCEAN_TEST_TESTCV_TEST_CANVAS_H