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#pragma once
#include "image.h"
#include "reader.h"
#define BIT_BUFFER_SIZE 1024
namespace TehImage
{
typedef enum {
PREDICTOR_TRANSFORM = 0,
COLOR_TRANSFORM = 1,
SUBTRACT_GREEN_TRANSFORM = 2,
COLOR_INDEXING_TRANSFORM = 3,
} TransformType;
class WEBPImage : public Image
{
public:
WEBPImage() = default;
~WEBPImage() = default;
WEBPImage(const Image& other) : Image(other) {}
int readFromFile(std::string filename) override;
int writeToFile(std::string filename) override;
private:
std::unique_ptr<Reader> reader;
uint8_t bitBuffer;
size_t bitBufferPos = 0;
bool readBit();
uint32_t readBits(size_t count);
void readFourCC(char* dest);
void refreshBitBuffer();
};
}
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