lzsa/src/shrink.h

43 lines
1.6 KiB
C
Executable File

/*
* shrink.h - block compressor definitions
*
* Copyright (C) 2019 Emmanuel Marty
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
#ifndef _SHRINK_H
#define _SHRINK_H
typedef struct {
unsigned short length;
unsigned short offset;
} lzsa_match;
typedef struct {
int *intervals;
int *pos_data;
int *open_intervals;
lzsa_match *match;
} lsza_compressor;
int lzsa_compressor_init(lsza_compressor *pCompressor, const int nMaxDataSize);
void lzsa_compressor_destroy(lsza_compressor *pCompressor);
int lzsa_shrink_block(lsza_compressor *pCompressor, const unsigned char *pInWindow, const int nPreviousBlockSize, const int nInDataSize, unsigned char *pOutData, const int nMaxOutDataSize);
#endif /* _SHRINK_H */