1 /*
2     File lzx_constants.h, part of lzxcomp library
3 
4     This program is free software; you can redistribute it and/or modify
5     it under the terms of the GNU Lesser General Public License as published by
6     the Free Software Foundation; version 2.1 only
7 
8     This program is distributed in the hope that it will be useful,
9     but WITHOUT ANY WARRANTY; without even the implied warranty of
10     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11     GNU Lesser General Public License for more details.
12 
13     You should have received a copy of the GNU Lesser General Public License
14     along with this program; if not, write to the Free Software
15     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16 
17     --------------------------------------
18     The above lines apply to the lzxcomp library as a whole.  This file,
19     lzx_constants.h, however, is probably uncopyrightable, and in any
20     case I explicitly place it in the public domain.
21 
22     Matthew T. Russotto
23 */
24 
25 /* these named constants are from the Microsoft LZX documentation */
26 #define MIN_MATCH                            2
27 #define MAX_MATCH                          257
28 #define NUM_CHARS                          256
29 #define NUM_PRIMARY_LENGTHS                  7
30 #define NUM_SECONDARY_LENGTHS              249
31 
32 /* the names of these constants are specific to this library */
33 #define LZX_MAX_CODE_LENGTH                 16
34 #define LZX_FRAME_SIZE                   32768
35 #define LZX_PRETREE_SIZE                    20
36 #define LZX_ALIGNED_BITS                     3
37 #define LZX_ALIGNED_SIZE                     8
38 
39 #define LZX_VERBATIM_BLOCK                   1
40 #define LZX_ALIGNED_OFFSET_BLOCK             2
41