#pragma once

#include "CCPlatformMacros.h"
#include "renderer/CCTexture2D.h"

NS_CC_BEGIN

namespace backend { 
    namespace PixelFormatUtils {
        typedef Texture2D::PixelFormat PixelFormat;

        /**convert functions*/

        /**
        Convert the format to the format param you specified, if the format is PixelFormat::Automatic, it will detect it automatically and convert to the closest format for you.
        It will return the converted format to you. if the outData != data, you must delete it manually.
        */
        PixelFormat convertDataToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat originFormat, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);

        PixelFormat convertI8ToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);
        PixelFormat convertAI88ToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);
        PixelFormat convertRGB888ToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);
        PixelFormat convertRGBA8888ToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);
        PixelFormat convertRGB5A1ToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);
        PixelFormat convertRGB565ToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);
        PixelFormat convertA8ToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);
        PixelFormat convertRGBA4444ToFormat(const unsigned char* data, ssize_t dataLen, PixelFormat format, unsigned char** outData, ssize_t* outDataLen);

        //I8 to XXX
        void convertI8ToRGB888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertI8ToRGBA8888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertI8ToRGB565(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertI8ToRGBA4444(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertI8ToRGB5A1(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertI8ToAI88(const unsigned char* data, ssize_t dataLen, unsigned char* outData);

        //AI88 to XXX
        void convertAI88ToRGB888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertAI88ToRGBA8888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertAI88ToRGB565(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertAI88ToRGBA4444(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertAI88ToRGB5A1(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertAI88ToA8(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertAI88ToI8(const unsigned char* data, ssize_t dataLen, unsigned char* outData);

        //RGB888 to XXX
        void convertRGB888ToRGBA8888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGB888ToRGB565(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGB888ToA8(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGB888ToI8(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGB888ToAI88(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGB888ToRGBA4444(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGB888ToRGB5A1(const unsigned char* data, ssize_t dataLen, unsigned char* outData);

        //RGBA8888 to XXX
        void convertRGBA8888ToRGB888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGBA8888ToRGB565(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGBA8888ToI8(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGBA8888ToA8(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGBA8888ToAI88(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGBA8888ToRGBA4444(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGBA8888ToRGB5A1(const unsigned char* data, ssize_t dataLen, unsigned char* outData);


        void convertRGB5A1ToRGBA8888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGB565ToRGBA8888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertA8ToRGBA8888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
        void convertRGBA4444ToRGBA8888(const unsigned char* data, ssize_t dataLen, unsigned char* outData);
    };
}
NS_CC_END