tif_codec.c revision ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4 
1/* $Id: tif_codec.c,v 1.17 2015-08-19 02:31:04 bfriesen 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
34static 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
80const TIFFCodec _TIFFBuiltinCODECS[] = {
81#else
82TIFFCodec _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
105static 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
118static int
119NotConfigured(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
142int
143TIFFIsCODECConfigured(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