mirror of
https://github.com/elasota/Aerofoil.git
synced 2025-09-23 14:53:52 +00:00
41 lines
847 B
C++
41 lines
847 B
C++
#pragma once
|
|
|
|
#include "IDecompressor.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
#define XADLZSSMatch -1
|
|
#define XADLZSSEnd -2
|
|
|
|
|
|
class LZSSDecompressor : public IDecompressor
|
|
{
|
|
public:
|
|
explicit LZSSDecompressor(int windowsize);
|
|
~LZSSDecompressor();
|
|
|
|
bool Reset(CSInputBuffer *input, size_t compressedSize, size_t decompressedSize) override;
|
|
bool ReadBytes(void *dest, size_t numBytes) override;
|
|
|
|
uint8_t ByteFromWindow(size_t absolutepos);
|
|
|
|
private:
|
|
virtual bool nextLiteralOrOffset(int *offset, int *length, int &result) = 0;
|
|
virtual bool resetLZSSHandle() = 0;
|
|
|
|
bool ReadOneByte(uint8_t &b);
|
|
|
|
uint8_t *windowbuffer;
|
|
int windowmask,matchlength,matchoffset;
|
|
int windowsize;
|
|
int pos;
|
|
|
|
protected:
|
|
CSInputBuffer *input;
|
|
};
|
|
|
|
inline uint8_t LZSSDecompressor::ByteFromWindow(size_t absolutepos)
|
|
{
|
|
return this->windowbuffer[absolutepos&this->windowmask];
|
|
}
|