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