| 1 | /* $Id: tif_codec.c,v 1.10 2005/12/21 12:23:13 joris Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Copyright (c) 1988-1997 Sam Leffler
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| 5 | * Copyright (c) 1991-1997 Silicon Graphics, Inc.
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| 6 | *
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| 7 | * Permission to use, copy, modify, distribute, and sell this software and
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| 8 | * its documentation for any purpose is hereby granted without fee, provided
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| 9 | * that (i) the above copyright notices and this permission notice appear in
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| 10 | * all copies of the software and related documentation, and (ii) the names of
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| 11 | * Sam Leffler and Silicon Graphics may not be used in any advertising or
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| 12 | * publicity relating to the software without the specific, prior written
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| 13 | * permission of Sam Leffler and Silicon Graphics.
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| 14 | *
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| 15 | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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| 16 | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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| 17 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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| 18 | *
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| 19 | * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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| 20 | * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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| 21 | * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 22 | * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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| 23 | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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| 24 | * OF THIS SOFTWARE.
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| 25 | */
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| 26 |
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| 27 | /*
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| 28 | * TIFF Library
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| 29 | *
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| 30 | * Builtin Compression Scheme Configuration Support.
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| 31 | */
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| 32 | #include "tiffiop.h"
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| 33 |
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| 34 | static int NotConfigured(TIFF*, int);
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| 35 |
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| 36 | #ifndef LZW_SUPPORT
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| 37 | #define TIFFInitLZW NotConfigured
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| 38 | #endif
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| 39 | #ifndef PACKBITS_SUPPORT
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| 40 | #define TIFFInitPackBits NotConfigured
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| 41 | #endif
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| 42 | #ifndef THUNDER_SUPPORT
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| 43 | #define TIFFInitThunderScan NotConfigured
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| 44 | #endif
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| 45 | #ifndef NEXT_SUPPORT
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| 46 | #define TIFFInitNeXT NotConfigured
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| 47 | #endif
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| 48 | #ifndef JPEG_SUPPORT
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| 49 | #define TIFFInitJPEG NotConfigured
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| 50 | #endif
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| 51 | #ifndef OJPEG_SUPPORT
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| 52 | #define TIFFInitOJPEG NotConfigured
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| 53 | #endif
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| 54 | #ifndef CCITT_SUPPORT
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| 55 | #define TIFFInitCCITTRLE NotConfigured
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| 56 | #define TIFFInitCCITTRLEW NotConfigured
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| 57 | #define TIFFInitCCITTFax3 NotConfigured
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| 58 | #define TIFFInitCCITTFax4 NotConfigured
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| 59 | #endif
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| 60 | #ifndef JBIG_SUPPORT
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| 61 | #define TIFFInitJBIG NotConfigured
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| 62 | #endif
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| 63 | #ifndef ZIP_SUPPORT
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| 64 | #define TIFFInitZIP NotConfigured
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| 65 | #endif
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| 66 | #ifndef PIXARLOG_SUPPORT
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| 67 | #define TIFFInitPixarLog NotConfigured
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| 68 | #endif
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| 69 | #ifndef LOGLUV_SUPPORT
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| 70 | #define TIFFInitSGILog NotConfigured
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| 71 | #endif
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| 72 |
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| 73 | /*
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| 74 | * Compression schemes statically built into the library.
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| 75 | */
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| 76 | #ifdef VMS
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| 77 | const TIFFCodec _TIFFBuiltinCODECS[] = {
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| 78 | #else
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| 79 | TIFFCodec _TIFFBuiltinCODECS[] = {
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| 80 | #endif
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| 81 | { "None", COMPRESSION_NONE, TIFFInitDumpMode },
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| 82 | { "LZW", COMPRESSION_LZW, TIFFInitLZW },
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| 83 | { "PackBits", COMPRESSION_PACKBITS, TIFFInitPackBits },
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| 84 | { "ThunderScan", COMPRESSION_THUNDERSCAN,TIFFInitThunderScan },
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| 85 | { "NeXT", COMPRESSION_NEXT, TIFFInitNeXT },
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| 86 | { "JPEG", COMPRESSION_JPEG, TIFFInitJPEG },
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| 87 | { "Old-style JPEG", COMPRESSION_OJPEG, TIFFInitOJPEG },
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| 88 | { "CCITT RLE", COMPRESSION_CCITTRLE, TIFFInitCCITTRLE },
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| 89 | { "CCITT RLE/W", COMPRESSION_CCITTRLEW, TIFFInitCCITTRLEW },
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| 90 | { "CCITT Group 3", COMPRESSION_CCITTFAX3, TIFFInitCCITTFax3 },
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| 91 | { "CCITT Group 4", COMPRESSION_CCITTFAX4, TIFFInitCCITTFax4 },
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| 92 | { "ISO JBIG", COMPRESSION_JBIG, TIFFInitJBIG },
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| 93 | { "Deflate", COMPRESSION_DEFLATE, TIFFInitZIP },
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| 94 | { "AdobeDeflate", COMPRESSION_ADOBE_DEFLATE , TIFFInitZIP },
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| 95 | { "PixarLog", COMPRESSION_PIXARLOG, TIFFInitPixarLog },
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| 96 | { "SGILog", COMPRESSION_SGILOG, TIFFInitSGILog },
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| 97 | { "SGILog24", COMPRESSION_SGILOG24, TIFFInitSGILog },
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| 98 | { NULL, 0, NULL }
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| 99 | };
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| 100 |
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| 101 | static int
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| 102 | _notConfigured(TIFF* tif)
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| 103 | {
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| 104 | const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression);
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| 105 |
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| 106 | TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
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| 107 | "%s compression support is not configured", c->name);
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| 108 | return (0);
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| 109 | }
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| 110 |
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| 111 | static int
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| 112 | NotConfigured(TIFF* tif, int scheme)
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| 113 | {
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| 114 | (void) scheme;
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| 115 |
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| 116 | tif->tif_decodestatus = FALSE;
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| 117 | tif->tif_setupdecode = _notConfigured;
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| 118 | tif->tif_encodestatus = FALSE;
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| 119 | tif->tif_setupencode = _notConfigured;
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| 120 | return (1);
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| 121 | }
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| 122 |
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| 123 | /************************************************************************/
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| 124 | /* TIFFIsCODECConfigured() */
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| 125 | /************************************************************************/
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| 126 |
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| 127 | /**
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| 128 | * Check whether we have working codec for the specific coding scheme.
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| 129 | *
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| 130 | * @return returns 1 if the codec is configured and working. Otherwise
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| 131 | * 0 will be returned.
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| 132 | */
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| 133 |
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| 134 | int
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| 135 | TIFFIsCODECConfigured(uint16 scheme)
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| 136 | {
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| 137 | const TIFFCodec* codec = TIFFFindCODEC(scheme);
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| 138 |
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| 139 | if(codec == NULL) {
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| 140 | return 0;
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| 141 | }
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| 142 | if(codec->init == NULL) {
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| 143 | return 0;
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| 144 | }
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| 145 | if(codec->init != NotConfigured){
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| 146 | return 1;
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| 147 | }
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| 148 | return 0;
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| 149 | }
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| 150 |
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