| 1 | /* $Header$ */ |
| 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 | * Core Directory Tag Support. |
| 31 | */ |
| 32 | #include "tiffiop.h" |
| 33 | #include <stdlib.h> |
| 34 | #include <assert.h> |
| 35 | #include <stdio.h> |
| 36 | |
| 37 | /* |
| 38 | * NB: NB: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG. |
| 39 | * If a tag can have both LONG and SHORT types |
| 40 | * then the LONG must be placed before the SHORT for |
| 41 | * writing to work properly. |
| 42 | * |
| 43 | * NOTE: The second field (field_readcount) and third field (field_writecount) |
| 44 | * sometimes use the values TIFF_VARIABLE (-1), TIFF_VARIABLE2 (-3) |
| 45 | * and TIFFTAG_SPP (-2). The macros should be used but would throw off |
| 46 | * the formatting of the code, so please interprete the -1, -2 and -3 |
| 47 | * values accordingly. |
| 48 | */ |
| 49 | #ifndef VMS |
| 50 | static |
| 51 | #endif |
| 52 | const TIFFFieldInfo tiffFieldInfo[] = { |
| 53 | { TIFFTAG_SUBFILETYPE, 1, 1, TIFF_LONG, FIELD_SUBFILETYPE, |
| 54 | TRUE, FALSE, "SubfileType" }, |
| 55 | /* XXX SHORT for compatibility w/ old versions of the library */ |
| 56 | { TIFFTAG_SUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE, |
| 57 | TRUE, FALSE, "SubfileType" }, |
| 58 | { TIFFTAG_OSUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE, |
| 59 | TRUE, FALSE, "OldSubfileType" }, |
| 60 | { TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS, |
| 61 | FALSE, FALSE, "ImageWidth" }, |
| 62 | { TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS, |
| 63 | FALSE, FALSE, "ImageWidth" }, |
| 64 | { TIFFTAG_IMAGELENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS, |
| 65 | TRUE, FALSE, "ImageLength" }, |
| 66 | { TIFFTAG_IMAGELENGTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS, |
| 67 | TRUE, FALSE, "ImageLength" }, |
| 68 | /* XXX LONG for compatibility with some broken TIFF writers */ |
| 69 | { TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_LONG, FIELD_BITSPERSAMPLE, |
| 70 | FALSE, FALSE, "BitsPerSample" }, |
| 71 | { TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_SHORT, FIELD_BITSPERSAMPLE, |
| 72 | FALSE, FALSE, "BitsPerSample" }, |
| 73 | /* XXX LONG for compatibility with some broken TIFF writers */ |
| 74 | { TIFFTAG_COMPRESSION, -1, 1, TIFF_LONG, FIELD_COMPRESSION, |
| 75 | FALSE, FALSE, "Compression" }, |
| 76 | { TIFFTAG_COMPRESSION, -1, 1, TIFF_SHORT, FIELD_COMPRESSION, |
| 77 | FALSE, FALSE, "Compression" }, |
| 78 | /* XXX LONG for compatibility with some broken TIFF writers */ |
| 79 | { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_LONG, FIELD_PHOTOMETRIC, |
| 80 | FALSE, FALSE, "PhotometricInterpretation" }, |
| 81 | { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, FIELD_PHOTOMETRIC, |
| 82 | FALSE, FALSE, "PhotometricInterpretation" }, |
| 83 | { TIFFTAG_THRESHHOLDING, 1, 1, TIFF_SHORT, FIELD_THRESHHOLDING, |
| 84 | TRUE, FALSE, "Threshholding" }, |
| 85 | { TIFFTAG_CELLWIDTH, 1, 1, TIFF_SHORT, FIELD_IGNORE, |
| 86 | TRUE, FALSE, "CellWidth" }, |
| 87 | { TIFFTAG_CELLLENGTH, 1, 1, TIFF_SHORT, FIELD_IGNORE, |
| 88 | TRUE, FALSE, "CellLength" }, |
| 89 | { TIFFTAG_FILLORDER, 1, 1, TIFF_SHORT, FIELD_FILLORDER, |
| 90 | FALSE, FALSE, "FillOrder" }, |
| 91 | { TIFFTAG_DOCUMENTNAME, -1,-1, TIFF_ASCII, FIELD_DOCUMENTNAME, |
| 92 | TRUE, FALSE, "DocumentName" }, |
| 93 | { TIFFTAG_IMAGEDESCRIPTION, -1,-1, TIFF_ASCII, FIELD_IMAGEDESCRIPTION, |
| 94 | TRUE, FALSE, "ImageDescription" }, |
| 95 | { TIFFTAG_MAKE, -1,-1, TIFF_ASCII, FIELD_MAKE, |
| 96 | TRUE, FALSE, "Make" }, |
| 97 | { TIFFTAG_MODEL, -1,-1, TIFF_ASCII, FIELD_MODEL, |
| 98 | TRUE, FALSE, "Model" }, |
| 99 | { TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_LONG, FIELD_STRIPOFFSETS, |
| 100 | FALSE, FALSE, "StripOffsets" }, |
| 101 | { TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_SHORT, FIELD_STRIPOFFSETS, |
| 102 | FALSE, FALSE, "StripOffsets" }, |
| 103 | { TIFFTAG_ORIENTATION, 1, 1, TIFF_SHORT, FIELD_ORIENTATION, |
| 104 | FALSE, FALSE, "Orientation" }, |
| 105 | { TIFFTAG_SAMPLESPERPIXEL, 1, 1, TIFF_SHORT, FIELD_SAMPLESPERPIXEL, |
| 106 | FALSE, FALSE, "SamplesPerPixel" }, |
| 107 | { TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_LONG, FIELD_ROWSPERSTRIP, |
| 108 | FALSE, FALSE, "RowsPerStrip" }, |
| 109 | { TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_SHORT, FIELD_ROWSPERSTRIP, |
| 110 | FALSE, FALSE, "RowsPerStrip" }, |
| 111 | { TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_STRIPBYTECOUNTS, |
| 112 | FALSE, FALSE, "StripByteCounts" }, |
| 113 | { TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS, |
| 114 | FALSE, FALSE, "StripByteCounts" }, |
| 115 | { TIFFTAG_MINSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MINSAMPLEVALUE, |
| 116 | TRUE, FALSE, "MinSampleValue" }, |
| 117 | { TIFFTAG_MAXSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MAXSAMPLEVALUE, |
| 118 | TRUE, FALSE, "MaxSampleValue" }, |
| 119 | { TIFFTAG_XRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION, |
| 120 | FALSE, FALSE, "XResolution" }, |
| 121 | { TIFFTAG_YRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION, |
| 122 | FALSE, FALSE, "YResolution" }, |
| 123 | { TIFFTAG_PLANARCONFIG, 1, 1, TIFF_SHORT, FIELD_PLANARCONFIG, |
| 124 | FALSE, FALSE, "PlanarConfiguration" }, |
| 125 | { TIFFTAG_PAGENAME, -1,-1, TIFF_ASCII, FIELD_PAGENAME, |
| 126 | TRUE, FALSE, "PageName" }, |
| 127 | { TIFFTAG_XPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION, |
| 128 | TRUE, FALSE, "XPosition" }, |
| 129 | { TIFFTAG_YPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION, |
| 130 | TRUE, FALSE, "YPosition" }, |
| 131 | { TIFFTAG_FREEOFFSETS, -1,-1, TIFF_LONG, FIELD_IGNORE, |
| 132 | FALSE, FALSE, "FreeOffsets" }, |
| 133 | { TIFFTAG_FREEBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_IGNORE, |
| 134 | FALSE, FALSE, "FreeByteCounts" }, |
| 135 | { TIFFTAG_GRAYRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE, |
| 136 | TRUE, FALSE, "GrayResponseUnit" }, |
| 137 | { TIFFTAG_GRAYRESPONSECURVE,-1,-1, TIFF_SHORT, FIELD_IGNORE, |
| 138 | TRUE, FALSE, "GrayResponseCurve" }, |
| 139 | { TIFFTAG_RESOLUTIONUNIT, 1, 1, TIFF_SHORT, FIELD_RESOLUTIONUNIT, |
| 140 | FALSE, FALSE, "ResolutionUnit" }, |
| 141 | { TIFFTAG_PAGENUMBER, 2, 2, TIFF_SHORT, FIELD_PAGENUMBER, |
| 142 | TRUE, FALSE, "PageNumber" }, |
| 143 | { TIFFTAG_COLORRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE, |
| 144 | TRUE, FALSE, "ColorResponseUnit" }, |
| 145 | { TIFFTAG_TRANSFERFUNCTION, -1,-1, TIFF_SHORT, FIELD_TRANSFERFUNCTION, |
| 146 | TRUE, FALSE, "TransferFunction" }, |
| 147 | { TIFFTAG_SOFTWARE, -1,-1, TIFF_ASCII, FIELD_CUSTOM, |
| 148 | TRUE, FALSE, "Software" }, |
| 149 | { TIFFTAG_DATETIME, 20,20, TIFF_ASCII, FIELD_DATETIME, |
| 150 | TRUE, FALSE, "DateTime" }, |
| 151 | { TIFFTAG_ARTIST, -1,-1, TIFF_ASCII, FIELD_ARTIST, |
| 152 | TRUE, FALSE, "Artist" }, |
| 153 | { TIFFTAG_HOSTCOMPUTER, -1,-1, TIFF_ASCII, FIELD_HOSTCOMPUTER, |
| 154 | TRUE, FALSE, "HostComputer" }, |
| 155 | { TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL,FIELD_WHITEPOINT, |
| 156 | TRUE, FALSE, "WhitePoint" }, |
| 157 | { TIFFTAG_PRIMARYCHROMATICITIES,6,6,TIFF_RATIONAL,FIELD_PRIMARYCHROMAS, |
| 158 | TRUE, FALSE, "PrimaryChromaticities" }, |
| 159 | { TIFFTAG_COLORMAP, -1,-1, TIFF_SHORT, FIELD_COLORMAP, |
| 160 | TRUE, FALSE, "ColorMap" }, |
| 161 | { TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, FIELD_HALFTONEHINTS, |
| 162 | TRUE, FALSE, "HalftoneHints" }, |
| 163 | { TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS, |
| 164 | FALSE, FALSE, "TileWidth" }, |
| 165 | { TIFFTAG_TILEWIDTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS, |
| 166 | FALSE, FALSE, "TileWidth" }, |
| 167 | { TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS, |
| 168 | FALSE, FALSE, "TileLength" }, |
| 169 | { TIFFTAG_TILELENGTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS, |
| 170 | FALSE, FALSE, "TileLength" }, |
| 171 | { TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG, FIELD_STRIPOFFSETS, |
| 172 | FALSE, FALSE, "TileOffsets" }, |
| 173 | { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG, FIELD_STRIPBYTECOUNTS, |
| 174 | FALSE, FALSE, "TileByteCounts" }, |
| 175 | { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS, |
| 176 | FALSE, FALSE, "TileByteCounts" }, |
| 177 | { TIFFTAG_SUBIFD, -1,-1, TIFF_LONG, FIELD_SUBIFD, |
| 178 | TRUE, TRUE, "SubIFD" }, |
| 179 | { TIFFTAG_INKSET, 1, 1, TIFF_SHORT, FIELD_INKSET, |
| 180 | FALSE, FALSE, "InkSet" }, |
| 181 | { TIFFTAG_INKNAMES, -1,-1, TIFF_ASCII, FIELD_INKNAMES, |
| 182 | TRUE, TRUE, "InkNames" }, |
| 183 | { TIFFTAG_NUMBEROFINKS, 1, 1, TIFF_SHORT, FIELD_NUMBEROFINKS, |
| 184 | TRUE, FALSE, "NumberOfInks" }, |
| 185 | { TIFFTAG_DOTRANGE, 2, 2, TIFF_SHORT, FIELD_DOTRANGE, |
| 186 | FALSE, FALSE, "DotRange" }, |
| 187 | { TIFFTAG_DOTRANGE, 2, 2, TIFF_BYTE, FIELD_DOTRANGE, |
| 188 | FALSE, FALSE, "DotRange" }, |
| 189 | { TIFFTAG_TARGETPRINTER, -1,-1, TIFF_ASCII, FIELD_TARGETPRINTER, |
| 190 | TRUE, FALSE, "TargetPrinter" }, |
| 191 | { TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_SHORT, FIELD_EXTRASAMPLES, |
| 192 | FALSE, FALSE, "ExtraSamples" }, |
| 193 | /* XXX for bogus Adobe Photoshop v2.5 files */ |
| 194 | { TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_BYTE, FIELD_EXTRASAMPLES, |
| 195 | FALSE, FALSE, "ExtraSamples" }, |
| 196 | { TIFFTAG_SAMPLEFORMAT, -1,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT, |
| 197 | FALSE, FALSE, "SampleFormat" }, |
| 198 | { TIFFTAG_SMINSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMINSAMPLEVALUE, |
| 199 | TRUE, FALSE, "SMinSampleValue" }, |
| 200 | { TIFFTAG_SMAXSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMAXSAMPLEVALUE, |
| 201 | TRUE, FALSE, "SMaxSampleValue" }, |
| 202 | { TIFFTAG_YCBCRCOEFFICIENTS, 3, 3, TIFF_RATIONAL, FIELD_YCBCRCOEFFICIENTS, |
| 203 | FALSE, FALSE, "YCbCrCoefficients" }, |
| 204 | { TIFFTAG_YCBCRSUBSAMPLING, 2, 2, TIFF_SHORT, FIELD_YCBCRSUBSAMPLING, |
| 205 | FALSE, FALSE, "YCbCrSubsampling" }, |
| 206 | { TIFFTAG_YCBCRPOSITIONING, 1, 1, TIFF_SHORT, FIELD_YCBCRPOSITIONING, |
| 207 | FALSE, FALSE, "YCbCrPositioning" }, |
| 208 | { TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_RATIONAL, FIELD_REFBLACKWHITE, |
| 209 | TRUE, FALSE, "ReferenceBlackWhite" }, |
| 210 | /* XXX temporarily accept LONG for backwards compatibility */ |
| 211 | { TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_LONG, FIELD_REFBLACKWHITE, |
| 212 | TRUE, FALSE, "ReferenceBlackWhite" }, |
| 213 | { TIFFTAG_XMLPACKET, -1,-3, TIFF_UNDEFINED, FIELD_XMLPACKET, |
| 214 | FALSE, TRUE, "XMLPacket" }, |
| 215 | /* begin SGI tags */ |
| 216 | { TIFFTAG_MATTEING, 1, 1, TIFF_SHORT, FIELD_EXTRASAMPLES, |
| 217 | FALSE, FALSE, "Matteing" }, |
| 218 | { TIFFTAG_DATATYPE, -2,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT, |
| 219 | FALSE, FALSE, "DataType" }, |
| 220 | { TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_LONG, FIELD_IMAGEDEPTH, |
| 221 | FALSE, FALSE, "ImageDepth" }, |
| 222 | { TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDEPTH, |
| 223 | FALSE, FALSE, "ImageDepth" }, |
| 224 | { TIFFTAG_TILEDEPTH, 1, 1, TIFF_LONG, FIELD_TILEDEPTH, |
| 225 | FALSE, FALSE, "TileDepth" }, |
| 226 | { TIFFTAG_TILEDEPTH, 1, 1, TIFF_SHORT, FIELD_TILEDEPTH, |
| 227 | FALSE, FALSE, "TileDepth" }, |
| 228 | /* end SGI tags */ |
| 229 | /* begin Pixar tags */ |
| 230 | { TIFFTAG_PIXAR_IMAGEFULLWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEFULLWIDTH, |
| 231 | TRUE, FALSE, "ImageFullWidth" }, |
| 232 | { TIFFTAG_PIXAR_IMAGEFULLLENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEFULLLENGTH, |
| 233 | TRUE, FALSE, "ImageFullLength" }, |
| 234 | { TIFFTAG_PIXAR_TEXTUREFORMAT, -1,-1, TIFF_ASCII, FIELD_TEXTUREFORMAT, |
| 235 | TRUE, FALSE, "TextureFormat" }, |
| 236 | { TIFFTAG_PIXAR_WRAPMODES, -1,-1, TIFF_ASCII, FIELD_WRAPMODES, |
| 237 | TRUE, FALSE, "TextureWrapModes" }, |
| 238 | { TIFFTAG_PIXAR_FOVCOT, 1, 1, TIFF_FLOAT, FIELD_FOVCOT, |
| 239 | TRUE, FALSE, "FieldOfViewCotan" }, |
| 240 | { TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN, 16,16, TIFF_FLOAT, |
| 241 | FIELD_MATRIX_WORLDTOSCREEN, TRUE, FALSE, "MatrixWorldToScreen" }, |
| 242 | { TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA, 16,16, TIFF_FLOAT, |
| 243 | FIELD_MATRIX_WORLDTOCAMERA, TRUE, FALSE, "MatrixWorldToCamera" }, |
| 244 | { TIFFTAG_COPYRIGHT, -1,-1, TIFF_ASCII, FIELD_COPYRIGHT, |
| 245 | TRUE, FALSE, "Copyright" }, |
| 246 | /* end Pixar tags */ |
| 247 | #ifdef IPTC_SUPPORT |
| 248 | #ifdef PHOTOSHOP_SUPPORT |
| 249 | { TIFFTAG_RICHTIFFIPTC, -1,-1, TIFF_LONG, FIELD_RICHTIFFIPTC, |
| 250 | FALSE, TRUE, "RichTIFFIPTC" }, |
| 251 | #else |
| 252 | { TIFFTAG_RICHTIFFIPTC, -1,-3, TIFF_UNDEFINED, FIELD_RICHTIFFIPTC, |
| 253 | FALSE, TRUE, "RichTIFFIPTC" }, |
| 254 | #endif |
| 255 | #endif |
| 256 | { TIFFTAG_PHOTOSHOP, -1,-3, TIFF_BYTE, FIELD_PHOTOSHOP, |
| 257 | FALSE, TRUE, "Photoshop" }, |
| 258 | { TIFFTAG_ICCPROFILE, -1,-3, TIFF_UNDEFINED, FIELD_ICCPROFILE, |
| 259 | FALSE, TRUE, "ICC Profile" }, |
| 260 | { TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, FIELD_STONITS, |
| 261 | FALSE, FALSE, "StoNits" }, |
| 262 | }; |
| 263 | #define N(a) (sizeof (a) / sizeof (a[0])) |
| 264 | |
| 265 | void |
| 266 | _TIFFSetupFieldInfo(TIFF* tif) |
| 267 | { |
| 268 | if (tif->tif_fieldinfo) { |
| 269 | int i; |
| 270 | |
| 271 | for (i = 0; i < tif->tif_nfields; i++) |
| 272 | { |
| 273 | TIFFFieldInfo *fld = tif->tif_fieldinfo[i]; |
| 274 | if (fld->field_bit == FIELD_CUSTOM && |
| 275 | strncmp("Tag ", fld->field_name, 4) == 0) |
| 276 | { |
| 277 | _TIFFfree(fld->field_name); |
| 278 | _TIFFfree(fld); |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | _TIFFfree(tif->tif_fieldinfo); |
| 283 | tif->tif_nfields = 0; |
| 284 | } |
| 285 | _TIFFMergeFieldInfo(tif, tiffFieldInfo, N(tiffFieldInfo)); |
| 286 | } |
| 287 | |
| 288 | static int |
| 289 | tagCompare(const void* a, const void* b) |
| 290 | { |
| 291 | const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a; |
| 292 | const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b; |
| 293 | /* NB: be careful of return values for 16-bit platforms */ |
| 294 | if (ta->field_tag != tb->field_tag) |
| 295 | return (ta->field_tag < tb->field_tag ? -1 : 1); |
| 296 | else |
| 297 | return ((int)tb->field_type - (int)ta->field_type); |
| 298 | } |
| 299 | |
| 300 | void |
| 301 | _TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n) |
| 302 | { |
| 303 | TIFFFieldInfo** tp; |
| 304 | int i; |
| 305 | |
| 306 | if (tif->tif_nfields > 0) { |
| 307 | tif->tif_fieldinfo = (TIFFFieldInfo**) |
| 308 | _TIFFrealloc(tif->tif_fieldinfo, |
| 309 | (tif->tif_nfields+n) * sizeof (TIFFFieldInfo*)); |
| 310 | } else { |
| 311 | tif->tif_fieldinfo = (TIFFFieldInfo**) |
| 312 | _TIFFmalloc(n * sizeof (TIFFFieldInfo*)); |
| 313 | } |
| 314 | assert(tif->tif_fieldinfo != NULL); |
| 315 | tp = &tif->tif_fieldinfo[tif->tif_nfields]; |
| 316 | for (i = 0; i < n; i++) |
| 317 | tp[i] = (TIFFFieldInfo*) &info[i]; /* XXX */ |
| 318 | |
| 319 | /* Sort the field info by tag number */ |
| 320 | qsort(tif->tif_fieldinfo, (size_t) (tif->tif_nfields += n), |
| 321 | sizeof (TIFFFieldInfo*), tagCompare); |
| 322 | } |
| 323 | |
| 324 | void |
| 325 | _TIFFPrintFieldInfo(TIFF* tif, FILE* fd) |
| 326 | { |
| 327 | int i; |
| 328 | |
| 329 | fprintf(fd, "%s: \n", tif->tif_name); |
| 330 | for (i = 0; i < tif->tif_nfields; i++) { |
| 331 | const TIFFFieldInfo* fip = tif->tif_fieldinfo[i]; |
| 332 | fprintf(fd, "field[%2d] %5lu, %2d, %2d, %d, %2d, %5s, %5s, %s\n" |
| 333 | , i |
| 334 | , (unsigned long) fip->field_tag |
| 335 | , fip->field_readcount, fip->field_writecount |
| 336 | , fip->field_type |
| 337 | , fip->field_bit |
| 338 | , fip->field_oktochange ? "TRUE" : "FALSE" |
| 339 | , fip->field_passcount ? "TRUE" : "FALSE" |
| 340 | , fip->field_name |
| 341 | ); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | /* |
| 346 | * Return size of TIFFDataType in bytes |
| 347 | */ |
| 348 | int |
| 349 | TIFFDataWidth(TIFFDataType type) |
| 350 | { |
| 351 | switch(type) |
| 352 | { |
| 353 | case 0: /* nothing */ |
| 354 | case 1: /* TIFF_BYTE */ |
| 355 | case 2: /* TIFF_ASCII */ |
| 356 | case 6: /* TIFF_SBYTE */ |
| 357 | case 7: /* TIFF_UNDEFINED */ |
| 358 | return 1; |
| 359 | case 3: /* TIFF_SHORT */ |
| 360 | case 8: /* TIFF_SSHORT */ |
| 361 | return 2; |
| 362 | case 4: /* TIFF_LONG */ |
| 363 | case 9: /* TIFF_SLONG */ |
| 364 | case 11: /* TIFF_FLOAT */ |
| 365 | case 13: /* TIFF_IFD */ |
| 366 | return 4; |
| 367 | case 5: /* TIFF_RATIONAL */ |
| 368 | case 10: /* TIFF_SRATIONAL */ |
| 369 | case 12: /* TIFF_DOUBLE */ |
| 370 | return 8; |
| 371 | default: |
| 372 | return 0; /* will return 0 for unknown types */ |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | /* |
| 377 | * Return nearest TIFFDataType to the sample type of an image. |
| 378 | */ |
| 379 | TIFFDataType |
| 380 | _TIFFSampleToTagType(TIFF* tif) |
| 381 | { |
| 382 | uint32 bps = TIFFhowmany8(tif->tif_dir.td_bitspersample); |
| 383 | |
| 384 | switch (tif->tif_dir.td_sampleformat) { |
| 385 | case SAMPLEFORMAT_IEEEFP: |
| 386 | return (bps == 4 ? TIFF_FLOAT : TIFF_DOUBLE); |
| 387 | case SAMPLEFORMAT_INT: |
| 388 | return (bps <= 1 ? TIFF_SBYTE : |
| 389 | bps <= 2 ? TIFF_SSHORT : TIFF_SLONG); |
| 390 | case SAMPLEFORMAT_UINT: |
| 391 | return (bps <= 1 ? TIFF_BYTE : |
| 392 | bps <= 2 ? TIFF_SHORT : TIFF_LONG); |
| 393 | case SAMPLEFORMAT_VOID: |
| 394 | return (TIFF_UNDEFINED); |
| 395 | } |
| 396 | /*NOTREACHED*/ |
| 397 | return (TIFF_UNDEFINED); |
| 398 | } |
| 399 | |
| 400 | const TIFFFieldInfo* |
| 401 | _TIFFFindFieldInfo(TIFF* tif, ttag_t tag, TIFFDataType dt) |
| 402 | { |
| 403 | static const TIFFFieldInfo *last = NULL; |
| 404 | int i, n; |
| 405 | |
| 406 | if (last && last->field_tag == tag && |
| 407 | (dt == TIFF_ANY || dt == last->field_type)) |
| 408 | return (last); |
| 409 | /* NB: if table gets big, use sorted search (e.g. binary search) */ |
| 410 | if(dt != TIFF_ANY) { |
| 411 | TIFFFieldInfo key = {0, 0, 0, 0, 0, 0, 0, 0}; |
| 412 | key.field_tag = tag; |
| 413 | key.field_type = dt; |
| 414 | return((const TIFFFieldInfo *) bsearch(&key, |
| 415 | tif->tif_fieldinfo, |
| 416 | tif->tif_nfields, |
| 417 | sizeof(TIFFFieldInfo), |
| 418 | tagCompare)); |
| 419 | } else for (i = 0, n = tif->tif_nfields; i < n; i++) { |
| 420 | const TIFFFieldInfo* fip = tif->tif_fieldinfo[i]; |
| 421 | if (fip->field_tag == tag && |
| 422 | (dt == TIFF_ANY || fip->field_type == dt)) |
| 423 | return (last = fip); |
| 424 | } |
| 425 | return ((const TIFFFieldInfo *)0); |
| 426 | } |
| 427 | |
| 428 | const TIFFFieldInfo* |
| 429 | _TIFFFieldWithTag(TIFF* tif, ttag_t tag) |
| 430 | { |
| 431 | const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); |
| 432 | if (!fip) { |
| 433 | TIFFError("TIFFFieldWithTag", |
| 434 | "Internal error, unknown tag 0x%x", (u_int) tag); |
| 435 | assert(fip != NULL); |
| 436 | /*NOTREACHED*/ |
| 437 | } |
| 438 | return (fip); |
| 439 | } |
| 440 | |
| 441 | const TIFFFieldInfo* |
| 442 | _TIFFFindOrRegisterFieldInfo( TIFF *tif, ttag_t tag, TIFFDataType dt ) |
| 443 | |
| 444 | { |
| 445 | const TIFFFieldInfo *fld; |
| 446 | |
| 447 | fld = _TIFFFindFieldInfo( tif, tag, dt ); |
| 448 | if( fld == NULL ) |
| 449 | { |
| 450 | fld = _TIFFCreateAnonFieldInfo( tif, tag, dt ); |
| 451 | _TIFFMergeFieldInfo( tif, fld, 1 ); |
| 452 | } |
| 453 | |
| 454 | return fld; |
| 455 | } |
| 456 | |
| 457 | TIFFFieldInfo* |
| 458 | _TIFFCreateAnonFieldInfo(TIFF *tif, ttag_t tag, TIFFDataType field_type) |
| 459 | { |
| 460 | TIFFFieldInfo *fld; |
| 461 | |
| 462 | fld = (TIFFFieldInfo *) _TIFFmalloc(sizeof (TIFFFieldInfo)); |
| 463 | if (fld == NULL) |
| 464 | return NULL; |
| 465 | _TIFFmemset( fld, 0, sizeof(TIFFFieldInfo) ); |
| 466 | |
| 467 | fld->field_tag = tag; |
| 468 | fld->field_readcount = TIFF_VARIABLE; |
| 469 | fld->field_writecount = TIFF_VARIABLE; |
| 470 | fld->field_type = field_type; |
| 471 | fld->field_bit = FIELD_CUSTOM; |
| 472 | fld->field_oktochange = TRUE; |
| 473 | fld->field_passcount = TRUE; |
| 474 | fld->field_name = (char *) _TIFFmalloc(32); |
| 475 | if (fld->field_name == NULL) { |
| 476 | _TIFFfree(fld); |
| 477 | return NULL; |
| 478 | } |
| 479 | |
| 480 | /* note that this name is a special sign to TIFFClose() and |
| 481 | * _TIFFSetupFieldInfo() to free the field |
| 482 | */ |
| 483 | sprintf(fld->field_name, "Tag %d", (int) tag); |
| 484 | |
| 485 | return fld; |
| 486 | } |