72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/*
|
|
* shrink_inmem.h - in-memory compression 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.
|
|
*/
|
|
|
|
/*
|
|
* Uses the libdivsufsort library Copyright (c) 2003-2008 Yuta Mori
|
|
*
|
|
* Inspired by LZ4 by Yann Collet. https://github.com/lz4/lz4
|
|
* With help, ideas, optimizations and speed measurements by spke <zxintrospec@gmail.com>
|
|
* With ideas from Lizard by Przemyslaw Skibinski and Yann Collet. https://github.com/inikep/lizard
|
|
* Also with ideas from smallz4 by Stephan Brumme. https://create.stephan-brumme.com/smallz4/
|
|
*
|
|
*/
|
|
|
|
#ifndef _SHRINK_INMEM_H
|
|
#define _SHRINK_INMEM_H
|
|
|
|
#include <stdlib.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* Get maximum compressed size of input(source) data
|
|
*
|
|
* @param nInputSize input(source) size in bytes
|
|
*
|
|
* @return maximum compressed size
|
|
*/
|
|
size_t lzsa_get_max_compressed_size_inmem(size_t nInputSize);
|
|
|
|
/**
|
|
* Compress memory
|
|
*
|
|
* @param pInputData pointer to input(source) data to compress
|
|
* @param pOutBuffer buffer for compressed data
|
|
* @param nInputSize input(source) size in bytes
|
|
* @param nMaxOutBufferSize maximum capacity of compression buffer
|
|
* @param nFlags compression flags (LZSA_FLAG_xxx)
|
|
* @param nMinMatchSize minimum match size
|
|
* @param nFormatVersion version of format to use (1-2)
|
|
*
|
|
* @return actual compressed size, or -1 for error
|
|
*/
|
|
size_t lzsa_compress_inmem(unsigned char *pInputData, unsigned char *pOutBuffer, size_t nInputSize, size_t nMaxOutBufferSize,
|
|
const unsigned int nFlags, const int nMinMatchSize, const int nFormatVersion);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SHRINK_INMEM_H */
|