1 | /**************************************************************************
|
---|
2 | *
|
---|
3 | * huffman_mem.c -- Huffman coding functions to memory
|
---|
4 | * Copyright (C) 1994 Neil Sharman
|
---|
5 | *
|
---|
6 | * This program is free software; you can redistribute it and/or modify
|
---|
7 | * it under the terms of the GNU General Public License as published by
|
---|
8 | * the Free Software Foundation; either version 2 of the License, or
|
---|
9 | * (at your option) any later version.
|
---|
10 | *
|
---|
11 | * This program is distributed in the hope that it will be useful,
|
---|
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
14 | * GNU General Public License for more details.
|
---|
15 | *
|
---|
16 | * You should have received a copy of the GNU General Public License
|
---|
17 | * along with this program; if not, write to the Free Software
|
---|
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
19 | *
|
---|
20 | * $Id: huffman_mem.c 3745 2003-02-20 21:20:24Z mdewsnip $
|
---|
21 | *
|
---|
22 | **************************************************************************/
|
---|
23 |
|
---|
24 | /*
|
---|
25 | $Log$
|
---|
26 | Revision 1.1 2003/02/20 21:14:16 mdewsnip
|
---|
27 | Addition of MG package for search and retrieval
|
---|
28 |
|
---|
29 | Revision 1.1 1999/08/10 21:16:51 sjboddie
|
---|
30 | renamed mg-1.3d directory mg
|
---|
31 |
|
---|
32 | Revision 1.1 1998/11/17 09:32:05 rjmcnab
|
---|
33 | *** empty log message ***
|
---|
34 |
|
---|
35 | * Revision 1.1 1994/08/22 00:24:45 tes
|
---|
36 | * Initial placement under CVS.
|
---|
37 | *
|
---|
38 | */
|
---|
39 |
|
---|
40 | static char *RCSID = "$Id: huffman_mem.c 3745 2003-02-20 21:20:24Z mdewsnip $";
|
---|
41 |
|
---|
42 | #include "sysfuncs.h"
|
---|
43 | #include "bitio_m.h"
|
---|
44 | #include "bitio_m_mem.h"
|
---|
45 | #include "huffman.h"
|
---|
46 |
|
---|
47 | #if 0
|
---|
48 | int fprintf (FILE *, const char *,...);
|
---|
49 | #endif
|
---|
50 |
|
---|
51 | void
|
---|
52 | BIO_Mem_Huff_Encode (unsigned long val, unsigned long *codes,
|
---|
53 | char *clens, mem_bitio_state * bs)
|
---|
54 | {
|
---|
55 | ENCODE_CONTINUE (*bs)
|
---|
56 | HUFF_ENCODE (val, codes, clens);
|
---|
57 | ENCODE_PAUSE (*bs)
|
---|
58 | }
|
---|
59 |
|
---|
60 | unsigned long
|
---|
61 | BIO_Mem_Huff_Decode (unsigned long *mincodes,
|
---|
62 | unsigned long **values, mem_bitio_state * bs)
|
---|
63 | {
|
---|
64 | unsigned long val;
|
---|
65 | DECODE_CONTINUE (*bs)
|
---|
66 | HUFF_DECODE (val, mincodes, values);
|
---|
67 | DECODE_PAUSE (*bs)
|
---|
68 | return (val);
|
---|
69 | }
|
---|