src/tiff/libtiff/tif_codec.c

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