1/* config1b.h -- configuration for the LZO1B algorithm 2 3 This file is part of the LZO real-time data compression library. 4 5 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 6 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 7 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 8 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 9 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 10 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 11 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 12 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 13 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 14 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 15 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 16 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 17 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 18 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 19 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 20 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 21 All Rights Reserved. 22 23 The LZO library is free software; you can redistribute it and/or 24 modify it under the terms of the GNU General Public License as 25 published by the Free Software Foundation; either version 2 of 26 the License, or (at your option) any later version. 27 28 The LZO library is distributed in the hope that it will be useful, 29 but WITHOUT ANY WARRANTY; without even the implied warranty of 30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 31 GNU General Public License for more details. 32 33 You should have received a copy of the GNU General Public License 34 along with the LZO library; see the file COPYING. 35 If not, write to the Free Software Foundation, Inc., 36 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 37 38 Markus F.X.J. Oberhumer 39 <markus@oberhumer.com> 40 http://www.oberhumer.com/opensource/lzo/ 41 */ 42 43 44/* WARNING: this file should *not* be used by applications. It is 45 part of the implementation of the library and is subject 46 to change. 47 */ 48 49 50#ifndef __LZO_CONFIG1B_H 51#define __LZO_CONFIG1B_H 1 52 53#include "lzo_conf.h" 54#include "lzo/lzo1b.h" 55 56 57/*********************************************************************** 58// algorithm configuration 59************************************************************************/ 60 61/* run bits (4 - 5) - the compressor and the decompressor 62 * must use the same value. */ 63#if !defined(RBITS) 64# define RBITS 5 65#endif 66 67/* dictionary depth (0 - 6) - this only affects the compressor. 68 * 0 is fastest, 6 is best compression ratio */ 69#if !defined(DDBITS) 70# define DDBITS 0 71#endif 72 73/* compression level (1 - 9) - this only affects the compressor. 74 * 1 is fastest, 9 is best compression ratio */ 75#if !defined(CLEVEL) 76# define CLEVEL 1 /* fastest by default */ 77#endif 78 79 80/* check configuration */ 81#if (RBITS < 4 || RBITS > 5) 82# error "invalid RBITS" 83#endif 84#if (DDBITS < 0 || DDBITS > 6) 85# error "invalid DDBITS" 86#endif 87#if (CLEVEL < 1 || CLEVEL > 9) 88# error "invalid CLEVEL" 89#endif 90 91 92/*********************************************************************** 93// internal configuration 94************************************************************************/ 95 96/* add a special code so that the decompressor can detect the 97 * end of the compressed data block (overhead is 3 bytes per block) */ 98#define LZO_EOF_CODE 1 99 100 101/*********************************************************************** 102// algorithm internal configuration 103************************************************************************/ 104 105/* choose the hashing strategy */ 106#ifndef LZO_HASH 107#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A 108#endif 109 110/* config */ 111#define R_BITS RBITS 112#define DD_BITS DDBITS 113#ifndef D_BITS 114#define D_BITS 14 115#endif 116 117 118/*********************************************************************** 119// optimization and debugging 120************************************************************************/ 121 122/* Collect statistics */ 123#if 0 && !defined(LZO_COLLECT_STATS) 124# define LZO_COLLECT_STATS 1 125#endif 126 127 128/*********************************************************************** 129// 130************************************************************************/ 131 132#include "lzo1b_de.h" 133#include "stats1b.h" 134 135#include "lzo1b_cc.h" 136 137 138#endif /* already included */ 139 140/* 141vi:ts=4:et 142*/ 143 144