1 /* $Id: tif_codec.c,v 1.14 2010-03-10 18:56:48 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 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 73 /* 74 * Compression schemes statically built into the library. 75 */ 76 #ifdef VMS 77 const TIFFCodec _TIFFBuiltinCODECS[] = { 78 #else 79 TIFFCodec _TIFFBuiltinCODECS[] = { 80 #endif 81 { "None", COMPRESSION_NONE, TIFFInitDumpMode }, 82 { "LZW", COMPRESSION_LZW, TIFFInitLZW }, 83 { "PackBits", COMPRESSION_PACKBITS, TIFFInitPackBits }, 84 { "ThunderScan", COMPRESSION_THUNDERSCAN,TIFFInitThunderScan }, 85 { "NeXT", COMPRESSION_NEXT, TIFFInitNeXT }, 86 { "JPEG", COMPRESSION_JPEG, TIFFInitJPEG }, 87 { "Old-style JPEG", COMPRESSION_OJPEG, TIFFInitOJPEG }, 88 { "CCITT RLE", COMPRESSION_CCITTRLE, TIFFInitCCITTRLE }, 89 { "CCITT RLE/W", COMPRESSION_CCITTRLEW, TIFFInitCCITTRLEW }, 90 { "CCITT Group 3", COMPRESSION_CCITTFAX3, TIFFInitCCITTFax3 }, 91 { "CCITT Group 4", COMPRESSION_CCITTFAX4, TIFFInitCCITTFax4 }, 92 { "ISO JBIG", COMPRESSION_JBIG, TIFFInitJBIG }, 93 { "Deflate", COMPRESSION_DEFLATE, TIFFInitZIP }, 94 { "AdobeDeflate", COMPRESSION_ADOBE_DEFLATE , TIFFInitZIP }, 95 { "PixarLog", COMPRESSION_PIXARLOG, TIFFInitPixarLog }, 96 { "SGILog", COMPRESSION_SGILOG, TIFFInitSGILog }, 97 { "SGILog24", COMPRESSION_SGILOG24, TIFFInitSGILog }, 98 { NULL, 0, NULL } 99 }; 100 101 static int 102 _notConfigured(TIFF* tif) 103 { 104 const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); 105 char compression_code[20]; 106 107 sprintf( compression_code, "%d", tif->tif_dir.td_compression ); 108 TIFFErrorExt(tif->tif_clientdata, tif->tif_name, 109 "%s compression support is not configured", 110 c ? c->name : compression_code ); 111 return (0); 112 } 113 114 static int 115 NotConfigured(TIFF* tif, int scheme) 116 { 117 (void) scheme; 118 119 tif->tif_fixuptags = _notConfigured; 120 tif->tif_decodestatus = FALSE; 121 tif->tif_setupdecode = _notConfigured; 122 tif->tif_encodestatus = FALSE; 123 tif->tif_setupencode = _notConfigured; 124 return (1); 125 } 126 127 /************************************************************************/ 128 /* TIFFIsCODECConfigured() */ 129 /************************************************************************/ 130 131 /** 132 * Check whether we have working codec for the specific coding scheme. 133 * 134 * @return returns 1 if the codec is configured and working. Otherwise 135 * 0 will be returned. 136 */ 137 138 int 139 TIFFIsCODECConfigured(uint16 scheme) 140 { 141 const TIFFCodec* codec = TIFFFindCODEC(scheme); 142 143 if(codec == NULL) { 144 return 0; 145 } 146 if(codec->init == NULL) { 147 return 0; 148 } 149 if(codec->init != NotConfigured){ 150 return 1; 151 } 152 return 0; 153 } 154 155 /* 156 * Local Variables: 157 * mode: c 158 * c-basic-offset: 8 159 * fill-column: 78 160 * End: 161 */ 162