path: root/tif_codec.c (plain)
blob: e20166737a2bd3492ea9716d18aa5e3e40c80cec

1	/* $Id: tif_codec.c,v 1.15 2010-12-14 12:53:00 dron Exp $ */
2
3	/*
4	* Copyright (c) 1988-1997 Sam Leffler
5	* Copyright (c) 1991-1997 Silicon Graphics, Inc.
6	*
7	* Permission to use, copy, modify, distribute, and sell this software and
8	* its documentation for any purpose is hereby granted without fee, provided
9	* that (i) the above copyright notices and this permission notice appear in
10	* all copies of the software and related documentation, and (ii) the names of
11	* Sam Leffler and Silicon Graphics may not be used in any advertising or
12	* publicity relating to the software without the specific, prior written
13	* permission of Sam Leffler and Silicon Graphics.
14	*
15	* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
16	* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
17	* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
18	*
19	* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
20	* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
21	* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
22	* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23	* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24	* OF THIS SOFTWARE.
25	*/
26
27	/*
28	* TIFF Library
29	*
30	* Builtin Compression Scheme Configuration Support.
31	*/
32	#include "tiffiop.h"
33
34	static int NotConfigured(TIFF*, int);
35
36	#ifndef LZW_SUPPORT
37	#define TIFFInitLZW NotConfigured
38	#endif
39	#ifndef PACKBITS_SUPPORT
40	#define TIFFInitPackBits NotConfigured
41	#endif
42	#ifndef THUNDER_SUPPORT
43	#define TIFFInitThunderScan NotConfigured
44	#endif
45	#ifndef NEXT_SUPPORT
46	#define TIFFInitNeXT NotConfigured
47	#endif
48	#ifndef JPEG_SUPPORT
49	#define TIFFInitJPEG NotConfigured
50	#endif
51	#ifndef OJPEG_SUPPORT
52	#define TIFFInitOJPEG NotConfigured
53	#endif
54	#ifndef CCITT_SUPPORT
55	#define TIFFInitCCITTRLE NotConfigured
56	#define TIFFInitCCITTRLEW NotConfigured
57	#define TIFFInitCCITTFax3 NotConfigured
58	#define TIFFInitCCITTFax4 NotConfigured
59	#endif
60	#ifndef JBIG_SUPPORT
61	#define TIFFInitJBIG NotConfigured
62	#endif
63	#ifndef ZIP_SUPPORT
64	#define TIFFInitZIP NotConfigured
65	#endif
66	#ifndef PIXARLOG_SUPPORT
67	#define TIFFInitPixarLog NotConfigured
68	#endif
69	#ifndef LOGLUV_SUPPORT
70	#define TIFFInitSGILog NotConfigured
71	#endif
72	#ifndef LZMA_SUPPORT
73	#define TIFFInitLZMA NotConfigured
74	#endif
75
76	/*
77	* Compression schemes statically built into the library.
78	*/
79	#ifdef VMS
80	const TIFFCodec _TIFFBuiltinCODECS[] = {
81	#else
82	TIFFCodec _TIFFBuiltinCODECS[] = {
83	#endif
84	{ "None", COMPRESSION_NONE, TIFFInitDumpMode },
85	{ "LZW", COMPRESSION_LZW, TIFFInitLZW },
86	{ "PackBits", COMPRESSION_PACKBITS, TIFFInitPackBits },
87	{ "ThunderScan", COMPRESSION_THUNDERSCAN,TIFFInitThunderScan },
88	{ "NeXT", COMPRESSION_NEXT, TIFFInitNeXT },
89	{ "JPEG", COMPRESSION_JPEG, TIFFInitJPEG },
90	{ "Old-style JPEG", COMPRESSION_OJPEG, TIFFInitOJPEG },
91	{ "CCITT RLE", COMPRESSION_CCITTRLE, TIFFInitCCITTRLE },
92	{ "CCITT RLE/W", COMPRESSION_CCITTRLEW, TIFFInitCCITTRLEW },
93	{ "CCITT Group 3", COMPRESSION_CCITTFAX3, TIFFInitCCITTFax3 },
94	{ "CCITT Group 4", COMPRESSION_CCITTFAX4, TIFFInitCCITTFax4 },
95	{ "ISO JBIG", COMPRESSION_JBIG, TIFFInitJBIG },
96	{ "Deflate", COMPRESSION_DEFLATE, TIFFInitZIP },
97	{ "AdobeDeflate", COMPRESSION_ADOBE_DEFLATE , TIFFInitZIP },
98	{ "PixarLog", COMPRESSION_PIXARLOG, TIFFInitPixarLog },
99	{ "SGILog", COMPRESSION_SGILOG, TIFFInitSGILog },
100	{ "SGILog24", COMPRESSION_SGILOG24, TIFFInitSGILog },
101	{ "LZMA", COMPRESSION_LZMA, TIFFInitLZMA },
102	{ NULL, 0, NULL }
103	};
104
105	static int
106	_notConfigured(TIFF* tif)
107	{
108	const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression);
109	char compression_code[20];
110
111	sprintf( compression_code, "%d", tif->tif_dir.td_compression );
112	TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
113	"%s compression support is not configured",
114	c ? c->name : compression_code );
115	return (0);
116	}
117
118	static int
119	NotConfigured(TIFF* tif, int scheme)
120	{
121	(void) scheme;
122
123	tif->tif_fixuptags = _notConfigured;
124	tif->tif_decodestatus = FALSE;
125	tif->tif_setupdecode = _notConfigured;
126	tif->tif_encodestatus = FALSE;
127	tif->tif_setupencode = _notConfigured;
128	return (1);
129	}
130
131	/************************************************************************/
132	/* TIFFIsCODECConfigured() */
133	/************************************************************************/
134
135	/**
136	* Check whether we have working codec for the specific coding scheme.
137	*
138	* @return returns 1 if the codec is configured and working. Otherwise
139	* 0 will be returned.
140	*/
141
142	int
143	TIFFIsCODECConfigured(uint16 scheme)
144	{
145	const TIFFCodec* codec = TIFFFindCODEC(scheme);
146
147	if(codec == NULL) {
148	return 0;
149	}
150	if(codec->init == NULL) {
151	return 0;
152	}
153	if(codec->init != NotConfigured){
154	return 1;
155	}
156	return 0;
157	}
158
159	/*
160	* Local Variables:
161	* mode: c
162	* c-basic-offset: 8
163	* fill-column: 78
164	* End:
165	*/
166