1 /* Copyright (C) 1995, 1996, 1998 Aladdin Enterprises. All rights reserved.
2
3 This software is provided AS-IS with no warranty, either express or
4 implied.
5
6 This software is distributed under license and may not be copied,
7 modified or distributed except as expressly authorized under the terms
8 of the license contained in the file LICENSE in this distribution.
9
10 For more information about licensing, please refer to
11 http://www.ghostscript.com/licensing/. For information on
12 commercial licensing, go to http://www.artifex.com/licensing/ or
13 contact Artifex Software, Inc., 101 Lucas Valley Road #110,
14 San Rafael, CA 94903, U.S.A., +1(415)492-9861.
15 */
16
17 /* $Id: slzwc.c,v 1.4 2002/02/21 22:24:54 giles Exp $ */
18 /* Code common to LZW encoding and decoding streams */
19 #include "std.h"
20 #include "strimpl.h"
21 #include "slzwx.h"
22
23 /* Define the structure for the GC. */
24 public_st_LZW_state();
25
26 /* Set defaults */
27 void
s_LZW_set_defaults(stream_state * st)28 s_LZW_set_defaults(stream_state * st)
29 {
30 stream_LZW_state *const ss = (stream_LZW_state *) st;
31
32 s_LZW_set_defaults_inline(ss);
33 }
34
35 /* Release a LZW filter. */
36 void
s_LZW_release(stream_state * st)37 s_LZW_release(stream_state * st)
38 {
39 stream_LZW_state *const ss = (stream_LZW_state *) st;
40
41 gs_free_object(st->memory, ss->table.decode, "LZW(close)");
42 }
43