Function VerifyOffsetBlock

cmp_unittests/codecbuffer_tests.cpp:516–549

template <typename T>
static void VerifyOffsetBlock(CCodecBuffer* buffer, uint blockOffsetX, uint blockOffsetY, T* testData)
{
    // verify RGBA block

    T block[k_blockWidth * k_blockHeight * 4] = {};

    CMP_DWORD bufferWidth = buffer->GetWidth();

    CHECK(buffer->ReadBlockRGBA(blockOffsetX * k_blockWidth, blockOffsetY * k_blockHeight, k_blockWidth, k_blockHeight, block));

    uint channelCount = buffer->GetChannelCount();

    uint blockOffset = blockOffsetY * k_blockHeight * bufferWidth * 4 + blockOffsetX * k_blockWidth * 4;

    for (uint row = 0; row < k_blockWidth; ++row)
    {
        for (uint col = 0; col < k_blockHeight; ++col)
        {
            for (uint channel = 0; channel < channelCount; ++channel)
            {
                CheckEqual(block[row * k_blockWidth * 4 + col * 4 + channel], testData[blockOffset + row * bufferWidth * 4 + col * 4 + channel]);
            }
        }
    }

    // verify individual channels

    VerifyOffsetBlockChannel(buffer, blockOffsetX, blockOffsetY, testData, RED_CHANNEL);
    VerifyOffsetBlockChannel(buffer, blockOffsetX, blockOffsetY, testData, GREEN_CHANNEL);
    VerifyOffsetBlockChannel(buffer, blockOffsetX, blockOffsetY, testData, BLUE_CHANNEL);

    if (channelCount == 4)
        VerifyOffsetBlockChannel(buffer, blockOffsetX, blockOffsetY, testData, ALPHA_CHANNEL);
}

// TESTS