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OpenBoard/thirdparty/mera/pdf-merger/LZWDecode.h

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#ifndef LZWDecode_H
#define LZWDecode_H
#include <string>
#include "Decoder.h"
#include "FilterPredictor.h"
namespace merge_lib
{
// this class provides method for FlateDecode encoding and decoding
class LZWDecode : public Decoder
{
public:
LZWDecode();
virtual ~LZWDecode();
bool encode(std::string & decoded) {return true;};
bool decode(std::string & encoded);
void initialize(Object * objectWithStram);
private:
FilterPredictor *_predict;
void clearTable();
int getCode();
std::string &_encoded;
std::string _dummy;
size_t _curSymbolIndex;
int _earlyChange; // early parameter
int _readBuf;
int _readBits;
int _nextCode;
int _bitsToRead;
bool _first;
int _curSequenceLength;
};
}
#endif // LZW_DECODE_H_INCLUDED