GifBlockWriter.h

//
// Created by succlz123 on 17-9-6.
//

#ifndef BURSTLINKER_GIFBLOCKWRITER_H
#define BURSTLINKER_GIFBLOCKWRITER_H

#include <fstream>
#include <list>
#include <vector>
#include "GifEncoder.h"

namespace blk {

    class GifBlockWriter {

    public:

        static void writeHeaderBlock(std::ofstream &file);

        static void writeLogicalScreenDescriptorBlock(std::ofstream &file, int32_t logicalScreenWidth,
                                                      int32_t logicalScreenHeight,
                                                      bool globalColorTable, int32_t colorResolution, bool sort,
                                                      int32_t globalColorTableSize,
                                                      int32_t backgroundColorIndex, int32_t pixelAspectRatio);

        static void writeNetscapeLoopingExtensionBlock(std::ofstream &file, uint32_t loopCount);

        static void writeGraphicsControlExtensionBlock(std::vector<uint8_t> &content, int32_t disposalMethod,
                                                       bool userInput, bool transparentColor, int32_t delayCentiseconds,
                                                       int32_t transparentColorIndex);

        static void writeImageDescriptorBlock(std::vector<uint8_t> &content, uint16_t imageLeft, uint16_t imageTop,
                                              uint16_t imageWidth,
                                              uint16_t imageHeight,
                                              bool localColorTable, bool interlace, bool sort,
                                              int localColorTableSize);

        static int32_t paddedSize(int32_t size);

        static void
        writeColorTableEntity(std::vector<uint8_t> &content, const std::vector<ARGB> &quantize, int paddedSize);

        static void writeColorTableTransparency(std::vector<uint8_t> &content, uint8_t r, uint8_t g, uint8_t b);

        static void writeColorTableUnpadded(std::vector<uint8_t> &content, int unpaddedSize, int paddedSize);

        static void writeImageDataBlock(std::ofstream &file, uint8_t colorDepth, std::list<uint8_t *> lzw, int lzwSize);

        static void writeTerminator(std::ofstream &file);

    };

}

#endif //BURSTLINKER_GIFBLOCKWRITER_H