Function convertRGB5A1ToFormat

core/renderer/backend/PixelFormatUtils.cpp:693–725

}

static ax::backend::PixelFormat convertRGB5A1ToFormat(const unsigned char* data,
                                                    size_t dataLen,
                                                    PixelFormat format,
                                                    unsigned char** outData,
                                                    size_t* outDataLen)
{
    switch (format)
    {
    case PixelFormat::RGBA8:
        *outDataLen = dataLen / 2 * 4;
        *outData    = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
        convertRGB5A1ToRGBA8(data, dataLen, *outData);
        break;
    case PixelFormat::RGB5A1:
        *outDataLen = dataLen;
        *outData    = (unsigned char*)data;
        break;
    default:
        // unsupported conversion or don't need to convert
        if (format != PixelFormat::RGBA8)
        {
            AXLOGW(
                "Can not convert image format PixelFormat::RGB5A1 to format ID:{}, we will use it's origin format "
                "PixelFormat::RGB51A",
                static_cast<int>(format));
        }
        *outData    = (unsigned char*)data;
        *outDataLen = dataLen;
        return PixelFormat::RGBA8;
    }

    return format;
}

static ax::backend::PixelFormat convertRGB565ToFormat(const unsigned char* data,
                                                    size_t dataLen,