192 lines
4.4 KiB
C
192 lines
4.4 KiB
C
/*
|
|
* $QNXtpLicenseC:
|
|
* Copyright 2007, QNX Software Systems. All Rights Reserved.
|
|
*
|
|
* You must obtain a written license from and pay applicable license fees to QNX
|
|
* Software Systems before you may reproduce, modify or distribute this software,
|
|
* or any work that includes all or part of this software. Free development
|
|
* licenses are available for evaluation and non-commercial purposes. For more
|
|
* information visit http://licensing.qnx.com or email licensing@qnx.com.
|
|
*
|
|
* This file may contain contributions from others. Please review this entire
|
|
* file for other proprietary rights or license notices, as well as the QNX
|
|
* Development Suite License Guide at http://licensing.qnx.com/license-guide/
|
|
* for other information.
|
|
* $
|
|
*/
|
|
|
|
|
|
|
|
|
|
/* config1a.h -- configuration for the LZO1A algorithm
|
|
|
|
This file is part of the LZO real-time data compression library.
|
|
|
|
Copyright (C) 1996-1999 Markus Franz Xaver Johannes Oberhumer
|
|
|
|
Markus F.X.J. Oberhumer
|
|
markus.oberhumer@jk.uni-linz.ac.at
|
|
*/
|
|
|
|
|
|
/* WARNING: this file should *not* be used by applications. It is
|
|
part of the implementation of the library and is subject
|
|
to change.
|
|
*/
|
|
|
|
|
|
#ifndef __LZO_CONFIG1A_H
|
|
#define __LZO_CONFIG1A_H
|
|
|
|
#include <lzo1a.h>
|
|
#include "lzo_conf.h"
|
|
|
|
#undef LZO_COLLECT_STATS /* no support for stats here */
|
|
|
|
|
|
/***********************************************************************
|
|
// algorithm configuration
|
|
************************************************************************/
|
|
|
|
/* run bits (4 - 5) - the compressor and the decompressor
|
|
* must use the same value. */
|
|
#if !defined(RBITS)
|
|
# define RBITS 5
|
|
#endif
|
|
|
|
/* dictionary depth (0 - 6) - this only affects the compressor.
|
|
* 0 is fastest, 6 is best compression ratio */
|
|
#if !defined(DDBITS)
|
|
# define DDBITS 0
|
|
#endif
|
|
|
|
/* compression level (1 - 9) - this only affects the compressor.
|
|
* 1 is fastest, 9 is best compression ratio */
|
|
#if !defined(CLEVEL)
|
|
# define CLEVEL 1 /* fastest by default */
|
|
#endif
|
|
|
|
|
|
/* check configuration */
|
|
#if (RBITS < 4 || RBITS > 5)
|
|
# error invalid RBITS
|
|
#endif
|
|
#if (DDBITS < 0 || DDBITS > 6)
|
|
# error invalid DDBITS
|
|
#endif
|
|
#if (CLEVEL < 1 || CLEVEL > 9)
|
|
# error invalid CLEVEL
|
|
#endif
|
|
|
|
|
|
/***********************************************************************
|
|
// internal configuration
|
|
************************************************************************/
|
|
|
|
/* add a special code so that the decompressor can detect the
|
|
* end of the compressed data block (overhead is 3 bytes per block) */
|
|
#undef LZO_EOF_CODE
|
|
|
|
/* return -1 instead of copying if the data cannot be compressed */
|
|
#undef LZO_RETURN_IF_NOT_COMPRESSIBLE
|
|
|
|
|
|
/***********************************************************************
|
|
// algorithm internal configuration
|
|
************************************************************************/
|
|
|
|
/* choose the hashing strategy */
|
|
#ifndef LZO_HASH
|
|
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
|
|
#endif
|
|
|
|
/* config */
|
|
#define R_BITS RBITS
|
|
#define DD_BITS DDBITS
|
|
#ifndef D_BITS
|
|
#define D_BITS 16
|
|
#endif
|
|
|
|
|
|
/***********************************************************************
|
|
// optimization and debugging
|
|
************************************************************************/
|
|
|
|
/* Collect statistics */
|
|
#if 0 && !defined(LZO_COLLECT_STATS)
|
|
# define LZO_COLLECT_STATS
|
|
#endif
|
|
|
|
|
|
/***********************************************************************
|
|
//
|
|
************************************************************************/
|
|
|
|
#define M3O_BITS M2O_BITS
|
|
#define M3L_BITS CHAR_BIT
|
|
#define M3_MAX_LEN (M3_MIN_LEN + LZO_SIZE(M3L_BITS) - 1)
|
|
#define _MAX_OFFSET _M2_MAX_OFFSET
|
|
#define LZO_NO_M3
|
|
|
|
#include "lzo_util.h"
|
|
#include "lzo1b_de.h"
|
|
#include "stats1b.h"
|
|
|
|
#include "lzo1b_cc.h"
|
|
|
|
|
|
/***********************************************************************
|
|
// check for total LZO1/LZO1A compatibility
|
|
************************************************************************/
|
|
|
|
#undef M2_MARKER
|
|
#define M2_MARKER (1 << M2O_BITS)
|
|
|
|
#if (R_BITS != 5)
|
|
# error
|
|
#endif
|
|
#if (M2O_BITS != 5)
|
|
# error
|
|
#endif
|
|
#if (M3O_BITS != 5)
|
|
# error
|
|
#endif
|
|
#if (M2_MIN_LEN != 3)
|
|
# error
|
|
#endif
|
|
#if (M2_MAX_LEN != 8)
|
|
# error
|
|
#endif
|
|
#if (M3_MIN_LEN != 9)
|
|
# error
|
|
#endif
|
|
#if (M3_MAX_LEN != 264)
|
|
# error
|
|
#endif
|
|
#if (_M2_MAX_OFFSET != (1u << 13))
|
|
# error
|
|
#endif
|
|
#if (_M2_MAX_OFFSET != _M3_MAX_OFFSET)
|
|
# error
|
|
#endif
|
|
#if (_M2_MAX_OFFSET != _MAX_OFFSET)
|
|
# error
|
|
#endif
|
|
#if (R0MIN != 32)
|
|
# error
|
|
#endif
|
|
#if (R0MAX != 287)
|
|
# error
|
|
#endif
|
|
#if (R0FAST != 280)
|
|
# error
|
|
#endif
|
|
|
|
|
|
#endif /* already included */
|
|
|
|
/*
|
|
vi:ts=4
|
|
*/
|
|
|