TestFrameBlender.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_FRAME_BLENDER_H
#define META_OCEAN_TEST_TESTCV_TEST_FRAME_BLENDER_H
 
#include "ocean/test/testcv/TestCV.h"
 
namespace Ocean
{
 
namespace Test
{
 
namespace TestCV
{
 
/**
 * This class implements a test for the frame blender class.
 * @ingroup testcv
 */
class OCEAN_TEST_CV_EXPORT TestFrameBlender
{
    public:
 
        /**
         * Tests the frame blender functions.
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         */
        static bool test(const double testDuration, Worker& worker);
 
        /**
         * Tests the blending two images with constant alpha value.
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         */
        static bool testConstantAlpha(const double testDuration, Worker& worker);
 
        /**
         * Tests the blending two images with a separate alpha channel.
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         * @tparam tTransparentIs0xFF True, if 0xFF is interpreted as fully transparent value; False, if 0x00 is interpreted as fully transparent
         */
        template <bool tTransparentIs0xFF>
        static bool testSeparateAlphaChannel(const double testDuration, Worker& worker);
 
        /**
         * Tests the blend function with alpha channel at the front or at the back.
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         * @tparam tTransparentIs0xFF True, if 0xFF is interpreted as fully transparent value; False, if 0x00 is interpreted as fully transparent
         */
        template <bool tTransparentIs0xFF>
        static bool testBlend(const double testDuration, Worker& worker);
 
        /**
         * Tests the blend function with constant value.
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         * @tparam tTransparentIs0xFF True, if 0xFF is interpreted as fully transparent value; False, if 0x00 is interpreted as fully transparent
         */
        template <bool tTransparentIs0xFF>
        static bool testBlendWithConstantValue(const double testDuration, Worker& worker);
 
    protected:
 
        /**
         * Tests the blending two images with a separate alpha channel.
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         * @tparam tTransparentIs0xFF True, if 0xFF is interpreted as fully transparent value; False, if 0x00 is interpreted as fully transparent
         */
        template <bool tTransparentIs0xFF>
        static bool testSeparateAlphaChannelSubFrame(const double testDuration, Worker& worker);
 
        /**
         * Tests the blending two images with a separate alpha channel.
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         * @tparam tTransparentIs0xFF True, if 0xFF is interpreted as fully transparent value; False, if 0x00 is interpreted as fully transparent
         */
        template <bool tTransparentIs0xFF>
        static bool testSeparateAlphaChannelFullFrame(const double testDuration, Worker& worker);
 
        /**
         * Tests the sub-region transparent blend function.
         * @param sourcePixelFormat Source pixel format
         * @param targetPixelFormat Target pixel format
         * @param targetWidth Width of the target test frame in pixel
         * @param targetHeight Height of the target test frame in pixel
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         * @tparam tTransparentIs0xFF True, if 0xFF is interpreted as fully transparent value; False, if 0x00 is interpreted as fully transparent
         */
        template <bool tTransparentIs0xFF>
        static bool testSubFrame(const FrameType::PixelFormat sourcePixelFormat, const FrameType::PixelFormat targetPixelFormat, const unsigned int targetWidth, const unsigned int targetHeight, const double testDuration, Worker& worker);
 
        /**
         * Tests the transparent blend function.
         * @param sourcePixelFormat Source pixel format
         * @param targetPixelFormat Target pixel format
         * @param width The width of the test frame in pixel
         * @param height The height of the test frame in pixel
         * @param testDuration Test duration in seconds, with range (0, infinity)
         * @param worker The worker object to distribute the computation
         * @return True, if this test succeeded
         * @tparam tTransparentIs0xFF True, if 0xFF is interpreted as fully transparent value; False, if 0x00 is interpreted as fully transparent
         */
        template <bool tTransparentIs0xFF>
        static bool testFullFrame(const FrameType::PixelFormat sourcePixelFormat, const FrameType::PixelFormat targetPixelFormat, const unsigned int width, const unsigned int height, const double testDuration, Worker& worker);
 
        /**
         * Validates the blend function with alpha channel.
         * @param sourceWithAlpha The source frame with alpha channel, must be valid
         * @param target The target frame, must be valid
         * @param blendResult The blend result, must be valid
         * @param sourceLeft Horizontal start position inside the source frame, with range [0, sourceWithAlpha.width() - 1]
         * @param sourceTop Vertical start position inside the source frame, with range [0, sourceWithAlpha.height() - 1]
         * @param targetLeft Horizontal start position inside the target frame, with range [0, target.width() - 1]
         * @param targetTop Vertical start position inside the target frame, with range [0, target.height() - 1]
         * @param width The width of the blending sub-region in pixel, with range [1, min(sourceWithAlpha.width() - sourceLeft, target.width() - targetLeft)]
         * @param height The height of the blending sub-region in pixel, with range [1, min(sourceWithAlpha.height() - sourceTop, target.height() - targetTop)]
         * @return True, if succeeded
         * @tparam tTransparentIs0xFF True, if 0xFF is interpreted as fully transparent value; False, if 0x00 is interpreted as fully transparent
         */
        template <bool tTransparentIs0xFF>
        static bool validateBlendResult(const Frame& sourceWithAlpha, const Frame& target, const Frame& blendResult, const unsigned int sourceLeft, const unsigned int sourceTop, const unsigned int targetLeft, const unsigned int targetTop, const unsigned int width, const unsigned int height);
};
 
}
 
}
 
}
 
#endif // META_OCEAN_TEST_TESTCV_TEST_FRAME_BLENDER_H