| 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 | * Directory Tag Get & Set Routines. |
| 31 | * (and also some miscellaneous stuff) |
| 32 | */ |
| 33 | #include "tiffiop.h" |
| 34 | |
| 35 | /* |
| 36 | * These are used in the backwards compatibility code... |
| 37 | */ |
| 38 | #define DATATYPE_VOID 0 /* !untyped data */ |
| 39 | #define DATATYPE_INT 1 /* !signed integer data */ |
| 40 | #define DATATYPE_UINT 2 /* !unsigned integer data */ |
| 41 | #define DATATYPE_IEEEFP 3 /* !IEEE floating point data */ |
| 42 | |
| 43 | static void |
| 44 | setByteArray(void** vpp, void* vp, size_t nmemb, size_t elem_size) |
| 45 | { |
| 46 | if (*vpp) |
| 47 | _TIFFfree(*vpp), *vpp = 0; |
| 48 | if (vp) { |
| 49 | tsize_t bytes = nmemb * elem_size; |
| 50 | if (elem_size && bytes / elem_size == nmemb) |
| 51 | *vpp = (void*) _TIFFmalloc(bytes); |
| 52 | if (*vpp) |
| 53 | _TIFFmemcpy(*vpp, vp, bytes); |
| 54 | } |
| 55 | } |
| 56 | void _TIFFsetByteArray(void** vpp, void* vp, long n) |
| 57 | { setByteArray(vpp, vp, n, 1); } |
| 58 | void _TIFFsetString(char** cpp, char* cp) |
| 59 | { setByteArray((void**) cpp, (void*) cp, strlen(cp)+1, 1); } |
| 60 | void _TIFFsetNString(char** cpp, char* cp, long n) |
| 61 | { setByteArray((void**) cpp, (void*) cp, n, 1); } |
| 62 | void _TIFFsetShortArray(uint16** wpp, uint16* wp, long n) |
| 63 | { setByteArray((void**) wpp, (void*) wp, n, sizeof (uint16)); } |
| 64 | void _TIFFsetLongArray(uint32** lpp, uint32* lp, long n) |
| 65 | { setByteArray((void**) lpp, (void*) lp, n, sizeof (uint32)); } |
| 66 | void _TIFFsetFloatArray(float** fpp, float* fp, long n) |
| 67 | { setByteArray((void**) fpp, (void*) fp, n, sizeof (float)); } |
| 68 | void _TIFFsetDoubleArray(double** dpp, double* dp, long n) |
| 69 | { setByteArray((void**) dpp, (void*) dp, n, sizeof (double)); } |
| 70 | |
| 71 | /* |
| 72 | * Install extra samples information. |
| 73 | */ |
| 74 | static int |
| 75 | setExtraSamples(TIFFDirectory* td, va_list ap, int* v) |
| 76 | { |
| 77 | uint16* va; |
| 78 | int i; |
| 79 | |
| 80 | *v = va_arg(ap, int); |
| 81 | if ((uint16) *v > td->td_samplesperpixel) |
| 82 | return (0); |
| 83 | va = va_arg(ap, uint16*); |
| 84 | if (*v > 0 && va == NULL) /* typically missing param */ |
| 85 | return (0); |
| 86 | for (i = 0; i < *v; i++) |
| 87 | if (va[i] > EXTRASAMPLE_UNASSALPHA) |
| 88 | return (0); |
| 89 | td->td_extrasamples = (uint16) *v; |
| 90 | _TIFFsetShortArray(&td->td_sampleinfo, va, td->td_extrasamples); |
| 91 | return (1); |
| 92 | } |
| 93 | |
| 94 | static int |
| 95 | checkInkNamesString(TIFF* tif, int slen, const char* s) |
| 96 | { |
| 97 | TIFFDirectory* td = &tif->tif_dir; |
| 98 | int i = td->td_samplesperpixel; |
| 99 | |
| 100 | if (slen > 0) { |
| 101 | const char* ep = s+slen; |
| 102 | const char* cp = s; |
| 103 | for (; i > 0; i--) { |
| 104 | for (; *cp != '\0'; cp++) |
| 105 | if (cp >= ep) |
| 106 | goto bad; |
| 107 | cp++; /* skip \0 */ |
| 108 | } |
| 109 | return (cp-s); |
| 110 | } |
| 111 | bad: |
| 112 | TIFFError("TIFFSetField", |
| 113 | "%s: Invalid InkNames value; expecting %d names, found %d", |
| 114 | tif->tif_name, |
| 115 | td->td_samplesperpixel, |
| 116 | td->td_samplesperpixel-i); |
| 117 | return (0); |
| 118 | } |
| 119 | |
| 120 | static int |
| 121 | _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) |
| 122 | { |
| 123 | static const char module[] = "_TIFFVSetField"; |
| 124 | |
| 125 | TIFFDirectory* td = &tif->tif_dir; |
| 126 | int status = 1; |
| 127 | uint32 v32; |
| 128 | int i, v; |
| 129 | double d; |
| 130 | char* s; |
| 131 | |
| 132 | switch (tag) { |
| 133 | case TIFFTAG_SUBFILETYPE: |
| 134 | td->td_subfiletype = va_arg(ap, uint32); |
| 135 | break; |
| 136 | case TIFFTAG_IMAGEWIDTH: |
| 137 | td->td_imagewidth = va_arg(ap, uint32); |
| 138 | break; |
| 139 | case TIFFTAG_IMAGELENGTH: |
| 140 | td->td_imagelength = va_arg(ap, uint32); |
| 141 | break; |
| 142 | case TIFFTAG_BITSPERSAMPLE: |
| 143 | td->td_bitspersample = (uint16) va_arg(ap, int); |
| 144 | /* |
| 145 | * If the data require post-decoding processing |
| 146 | * to byte-swap samples, set it up here. Note |
| 147 | * that since tags are required to be ordered, |
| 148 | * compression code can override this behaviour |
| 149 | * in the setup method if it wants to roll the |
| 150 | * post decoding work in with its normal work. |
| 151 | */ |
| 152 | if (tif->tif_flags & TIFF_SWAB) { |
| 153 | if (td->td_bitspersample == 16) |
| 154 | tif->tif_postdecode = _TIFFSwab16BitData; |
| 155 | else if (td->td_bitspersample == 32) |
| 156 | tif->tif_postdecode = _TIFFSwab32BitData; |
| 157 | else if (td->td_bitspersample == 64) |
| 158 | tif->tif_postdecode = _TIFFSwab64BitData; |
| 159 | } |
| 160 | break; |
| 161 | case TIFFTAG_COMPRESSION: |
| 162 | v = va_arg(ap, int) & 0xffff; |
| 163 | /* |
| 164 | * If we're changing the compression scheme, |
| 165 | * the notify the previous module so that it |
| 166 | * can cleanup any state it's setup. |
| 167 | */ |
| 168 | if (TIFFFieldSet(tif, FIELD_COMPRESSION)) { |
| 169 | if (td->td_compression == v) |
| 170 | break; |
| 171 | (*tif->tif_cleanup)(tif); |
| 172 | tif->tif_flags &= ~TIFF_CODERSETUP; |
| 173 | } |
| 174 | /* |
| 175 | * Setup new compression routine state. |
| 176 | */ |
| 177 | if( (status = TIFFSetCompressionScheme(tif, v)) != 0 ) |
| 178 | td->td_compression = (uint16) v; |
| 179 | else |
| 180 | status = 0; |
| 181 | break; |
| 182 | case TIFFTAG_PHOTOMETRIC: |
| 183 | td->td_photometric = (uint16) va_arg(ap, int); |
| 184 | break; |
| 185 | case TIFFTAG_THRESHHOLDING: |
| 186 | td->td_threshholding = (uint16) va_arg(ap, int); |
| 187 | break; |
| 188 | case TIFFTAG_FILLORDER: |
| 189 | v = va_arg(ap, int); |
| 190 | if (v != FILLORDER_LSB2MSB && v != FILLORDER_MSB2LSB) |
| 191 | goto badvalue; |
| 192 | td->td_fillorder = (uint16) v; |
| 193 | break; |
| 194 | case TIFFTAG_DOCUMENTNAME: |
| 195 | _TIFFsetString(&td->td_documentname, va_arg(ap, char*)); |
| 196 | break; |
| 197 | case TIFFTAG_ARTIST: |
| 198 | _TIFFsetString(&td->td_artist, va_arg(ap, char*)); |
| 199 | break; |
| 200 | case TIFFTAG_DATETIME: |
| 201 | _TIFFsetString(&td->td_datetime, va_arg(ap, char*)); |
| 202 | break; |
| 203 | case TIFFTAG_HOSTCOMPUTER: |
| 204 | _TIFFsetString(&td->td_hostcomputer, va_arg(ap, char*)); |
| 205 | break; |
| 206 | case TIFFTAG_IMAGEDESCRIPTION: |
| 207 | _TIFFsetString(&td->td_imagedescription, va_arg(ap, char*)); |
| 208 | break; |
| 209 | case TIFFTAG_MAKE: |
| 210 | _TIFFsetString(&td->td_make, va_arg(ap, char*)); |
| 211 | break; |
| 212 | case TIFFTAG_MODEL: |
| 213 | _TIFFsetString(&td->td_model, va_arg(ap, char*)); |
| 214 | break; |
| 215 | case TIFFTAG_COPYRIGHT: |
| 216 | _TIFFsetString(&td->td_copyright, va_arg(ap, char*)); |
| 217 | break; |
| 218 | case TIFFTAG_ORIENTATION: |
| 219 | v = va_arg(ap, int); |
| 220 | if (v < ORIENTATION_TOPLEFT || ORIENTATION_LEFTBOT < v) { |
| 221 | TIFFWarning(tif->tif_name, |
| 222 | "Bad value %ld for \"%s\" tag ignored", |
| 223 | v, _TIFFFieldWithTag(tif, tag)->field_name); |
| 224 | } else |
| 225 | td->td_orientation = (uint16) v; |
| 226 | break; |
| 227 | case TIFFTAG_SAMPLESPERPIXEL: |
| 228 | /* XXX should cross check -- e.g. if pallette, then 1 */ |
| 229 | v = va_arg(ap, int); |
| 230 | if (v == 0) |
| 231 | goto badvalue; |
| 232 | td->td_samplesperpixel = (uint16) v; |
| 233 | break; |
| 234 | case TIFFTAG_ROWSPERSTRIP: |
| 235 | v32 = va_arg(ap, uint32); |
| 236 | if (v32 == 0) |
| 237 | goto badvalue32; |
| 238 | td->td_rowsperstrip = v32; |
| 239 | if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) { |
| 240 | td->td_tilelength = v32; |
| 241 | td->td_tilewidth = td->td_imagewidth; |
| 242 | } |
| 243 | break; |
| 244 | case TIFFTAG_MINSAMPLEVALUE: |
| 245 | td->td_minsamplevalue = (uint16) va_arg(ap, int); |
| 246 | break; |
| 247 | case TIFFTAG_MAXSAMPLEVALUE: |
| 248 | td->td_maxsamplevalue = (uint16) va_arg(ap, int); |
| 249 | break; |
| 250 | case TIFFTAG_SMINSAMPLEVALUE: |
| 251 | td->td_sminsamplevalue = (double) va_arg(ap, dblparam_t); |
| 252 | break; |
| 253 | case TIFFTAG_SMAXSAMPLEVALUE: |
| 254 | td->td_smaxsamplevalue = (double) va_arg(ap, dblparam_t); |
| 255 | break; |
| 256 | case TIFFTAG_XRESOLUTION: |
| 257 | td->td_xresolution = (float) va_arg(ap, dblparam_t); |
| 258 | break; |
| 259 | case TIFFTAG_YRESOLUTION: |
| 260 | td->td_yresolution = (float) va_arg(ap, dblparam_t); |
| 261 | break; |
| 262 | case TIFFTAG_PLANARCONFIG: |
| 263 | v = va_arg(ap, int); |
| 264 | if (v != PLANARCONFIG_CONTIG && v != PLANARCONFIG_SEPARATE) |
| 265 | goto badvalue; |
| 266 | td->td_planarconfig = (uint16) v; |
| 267 | break; |
| 268 | case TIFFTAG_PAGENAME: |
| 269 | _TIFFsetString(&td->td_pagename, va_arg(ap, char*)); |
| 270 | break; |
| 271 | case TIFFTAG_XPOSITION: |
| 272 | td->td_xposition = (float) va_arg(ap, dblparam_t); |
| 273 | break; |
| 274 | case TIFFTAG_YPOSITION: |
| 275 | td->td_yposition = (float) va_arg(ap, dblparam_t); |
| 276 | break; |
| 277 | case TIFFTAG_RESOLUTIONUNIT: |
| 278 | v = va_arg(ap, int); |
| 279 | if (v < RESUNIT_NONE || RESUNIT_CENTIMETER < v) |
| 280 | goto badvalue; |
| 281 | td->td_resolutionunit = (uint16) v; |
| 282 | break; |
| 283 | case TIFFTAG_PAGENUMBER: |
| 284 | td->td_pagenumber[0] = (uint16) va_arg(ap, int); |
| 285 | td->td_pagenumber[1] = (uint16) va_arg(ap, int); |
| 286 | break; |
| 287 | case TIFFTAG_HALFTONEHINTS: |
| 288 | td->td_halftonehints[0] = (uint16) va_arg(ap, int); |
| 289 | td->td_halftonehints[1] = (uint16) va_arg(ap, int); |
| 290 | break; |
| 291 | case TIFFTAG_COLORMAP: |
| 292 | v32 = (uint32)(1L<<td->td_bitspersample); |
| 293 | _TIFFsetShortArray(&td->td_colormap[0], va_arg(ap, uint16*), v32); |
| 294 | _TIFFsetShortArray(&td->td_colormap[1], va_arg(ap, uint16*), v32); |
| 295 | _TIFFsetShortArray(&td->td_colormap[2], va_arg(ap, uint16*), v32); |
| 296 | break; |
| 297 | case TIFFTAG_EXTRASAMPLES: |
| 298 | if (!setExtraSamples(td, ap, &v)) |
| 299 | goto badvalue; |
| 300 | break; |
| 301 | case TIFFTAG_MATTEING: |
| 302 | td->td_extrasamples = (uint16) (va_arg(ap, int) != 0); |
| 303 | if (td->td_extrasamples) { |
| 304 | uint16 sv = EXTRASAMPLE_ASSOCALPHA; |
| 305 | _TIFFsetShortArray(&td->td_sampleinfo, &sv, 1); |
| 306 | } |
| 307 | break; |
| 308 | case TIFFTAG_TILEWIDTH: |
| 309 | v32 = va_arg(ap, uint32); |
| 310 | if (v32 % 16) { |
| 311 | if (tif->tif_mode != O_RDONLY) |
| 312 | goto badvalue32; |
| 313 | TIFFWarning(tif->tif_name, |
| 314 | "Nonstandard tile width %d, convert file", v32); |
| 315 | } |
| 316 | td->td_tilewidth = v32; |
| 317 | tif->tif_flags |= TIFF_ISTILED; |
| 318 | break; |
| 319 | case TIFFTAG_TILELENGTH: |
| 320 | v32 = va_arg(ap, uint32); |
| 321 | if (v32 % 16) { |
| 322 | if (tif->tif_mode != O_RDONLY) |
| 323 | goto badvalue32; |
| 324 | TIFFWarning(tif->tif_name, |
| 325 | "Nonstandard tile length %d, convert file", v32); |
| 326 | } |
| 327 | td->td_tilelength = v32; |
| 328 | tif->tif_flags |= TIFF_ISTILED; |
| 329 | break; |
| 330 | case TIFFTAG_TILEDEPTH: |
| 331 | v32 = va_arg(ap, uint32); |
| 332 | if (v32 == 0) |
| 333 | goto badvalue32; |
| 334 | td->td_tiledepth = v32; |
| 335 | break; |
| 336 | case TIFFTAG_DATATYPE: |
| 337 | v = va_arg(ap, int); |
| 338 | switch (v) { |
| 339 | case DATATYPE_VOID: v = SAMPLEFORMAT_VOID; break; |
| 340 | case DATATYPE_INT: v = SAMPLEFORMAT_INT; break; |
| 341 | case DATATYPE_UINT: v = SAMPLEFORMAT_UINT; break; |
| 342 | case DATATYPE_IEEEFP: v = SAMPLEFORMAT_IEEEFP;break; |
| 343 | default: goto badvalue; |
| 344 | } |
| 345 | td->td_sampleformat = (uint16) v; |
| 346 | break; |
| 347 | case TIFFTAG_SAMPLEFORMAT: |
| 348 | v = va_arg(ap, int); |
| 349 | if (v < SAMPLEFORMAT_UINT || SAMPLEFORMAT_COMPLEXIEEEFP < v) |
| 350 | goto badvalue; |
| 351 | td->td_sampleformat = (uint16) v; |
| 352 | |
| 353 | /* Try to fix up the SWAB function for complex data. */ |
| 354 | if( td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT |
| 355 | && td->td_bitspersample == 32 |
| 356 | && tif->tif_postdecode == _TIFFSwab32BitData ) |
| 357 | tif->tif_postdecode = _TIFFSwab16BitData; |
| 358 | else if( (td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT |
| 359 | || td->td_sampleformat == SAMPLEFORMAT_COMPLEXIEEEFP) |
| 360 | && td->td_bitspersample == 64 |
| 361 | && tif->tif_postdecode == _TIFFSwab64BitData ) |
| 362 | tif->tif_postdecode = _TIFFSwab32BitData; |
| 363 | else if( td->td_sampleformat == SAMPLEFORMAT_COMPLEXIEEEFP |
| 364 | && td->td_bitspersample == 128 |
| 365 | && tif->tif_postdecode == NULL ) |
| 366 | tif->tif_postdecode = _TIFFSwab64BitData; |
| 367 | break; |
| 368 | case TIFFTAG_IMAGEDEPTH: |
| 369 | td->td_imagedepth = va_arg(ap, uint32); |
| 370 | break; |
| 371 | case TIFFTAG_STONITS: |
| 372 | d = va_arg(ap, dblparam_t); |
| 373 | if (d <= 0.) |
| 374 | goto badvaluedbl; |
| 375 | td->td_stonits = d; |
| 376 | break; |
| 377 | /* Begin Pixar Tags */ |
| 378 | case TIFFTAG_PIXAR_IMAGEFULLWIDTH: |
| 379 | td->td_imagefullwidth = va_arg(ap, uint32); |
| 380 | break; |
| 381 | case TIFFTAG_PIXAR_IMAGEFULLLENGTH: |
| 382 | td->td_imagefulllength = va_arg(ap, uint32); |
| 383 | break; |
| 384 | case TIFFTAG_PIXAR_TEXTUREFORMAT: |
| 385 | _TIFFsetString(&td->td_textureformat, va_arg(ap, char*)); |
| 386 | break; |
| 387 | case TIFFTAG_PIXAR_WRAPMODES: |
| 388 | _TIFFsetString(&td->td_wrapmodes, va_arg(ap, char*)); |
| 389 | break; |
| 390 | case TIFFTAG_PIXAR_FOVCOT: |
| 391 | td->td_fovcot = (float) va_arg(ap, dblparam_t); |
| 392 | break; |
| 393 | case TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN: |
| 394 | _TIFFsetFloatArray(&td->td_matrixWorldToScreen, |
| 395 | va_arg(ap, float*), 16); |
| 396 | break; |
| 397 | case TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA: |
| 398 | _TIFFsetFloatArray(&td->td_matrixWorldToCamera, |
| 399 | va_arg(ap, float*), 16); |
| 400 | break; |
| 401 | /* End Pixar Tags */ |
| 402 | |
| 403 | case TIFFTAG_SUBIFD: |
| 404 | if ((tif->tif_flags & TIFF_INSUBIFD) == 0) { |
| 405 | td->td_nsubifd = (uint16) va_arg(ap, int); |
| 406 | _TIFFsetLongArray(&td->td_subifd, va_arg(ap, uint32*), |
| 407 | (long) td->td_nsubifd); |
| 408 | } else { |
| 409 | TIFFError(module, "%s: Sorry, cannot nest SubIFDs", |
| 410 | tif->tif_name); |
| 411 | status = 0; |
| 412 | } |
| 413 | break; |
| 414 | case TIFFTAG_YCBCRCOEFFICIENTS: |
| 415 | _TIFFsetFloatArray(&td->td_ycbcrcoeffs, va_arg(ap, float*), 3); |
| 416 | break; |
| 417 | case TIFFTAG_YCBCRPOSITIONING: |
| 418 | td->td_ycbcrpositioning = (uint16) va_arg(ap, int); |
| 419 | break; |
| 420 | case TIFFTAG_YCBCRSUBSAMPLING: |
| 421 | td->td_ycbcrsubsampling[0] = (uint16) va_arg(ap, int); |
| 422 | td->td_ycbcrsubsampling[1] = (uint16) va_arg(ap, int); |
| 423 | break; |
| 424 | case TIFFTAG_WHITEPOINT: |
| 425 | _TIFFsetFloatArray(&td->td_whitepoint, va_arg(ap, float*), 2); |
| 426 | break; |
| 427 | case TIFFTAG_PRIMARYCHROMATICITIES: |
| 428 | _TIFFsetFloatArray(&td->td_primarychromas, va_arg(ap, float*), 6); |
| 429 | break; |
| 430 | case TIFFTAG_TRANSFERFUNCTION: |
| 431 | v = (td->td_samplesperpixel - td->td_extrasamples) > 1 ? 3 : 1; |
| 432 | for (i = 0; i < v; i++) |
| 433 | _TIFFsetShortArray(&td->td_transferfunction[i], |
| 434 | va_arg(ap, uint16*), 1L<<td->td_bitspersample); |
| 435 | break; |
| 436 | case TIFFTAG_REFERENCEBLACKWHITE: |
| 437 | /* XXX should check for null range */ |
| 438 | _TIFFsetFloatArray(&td->td_refblackwhite, va_arg(ap, float*), 6); |
| 439 | break; |
| 440 | case TIFFTAG_INKSET: |
| 441 | td->td_inkset = (uint16) va_arg(ap, int); |
| 442 | break; |
| 443 | case TIFFTAG_DOTRANGE: |
| 444 | /* XXX should check for null range */ |
| 445 | td->td_dotrange[0] = (uint16) va_arg(ap, int); |
| 446 | td->td_dotrange[1] = (uint16) va_arg(ap, int); |
| 447 | break; |
| 448 | case TIFFTAG_INKNAMES: |
| 449 | i = va_arg(ap, int); |
| 450 | s = va_arg(ap, char*); |
| 451 | i = checkInkNamesString(tif, i, s); |
| 452 | status = i > 0; |
| 453 | if( i > 0 ) { |
| 454 | _TIFFsetNString(&td->td_inknames, s, i); |
| 455 | td->td_inknameslen = i; |
| 456 | } |
| 457 | break; |
| 458 | case TIFFTAG_NUMBEROFINKS: |
| 459 | td->td_ninks = (uint16) va_arg(ap, int); |
| 460 | break; |
| 461 | case TIFFTAG_TARGETPRINTER: |
| 462 | _TIFFsetString(&td->td_targetprinter, va_arg(ap, char*)); |
| 463 | break; |
| 464 | case TIFFTAG_ICCPROFILE: |
| 465 | td->td_profileLength = (uint32) va_arg(ap, uint32); |
| 466 | _TIFFsetByteArray(&td->td_profileData, va_arg(ap, void*), |
| 467 | td->td_profileLength); |
| 468 | break; |
| 469 | case TIFFTAG_PHOTOSHOP: |
| 470 | td->td_photoshopLength = (uint32) va_arg(ap, uint32); |
| 471 | _TIFFsetByteArray (&td->td_photoshopData, va_arg(ap, void*), |
| 472 | td->td_photoshopLength); |
| 473 | break; |
| 474 | case TIFFTAG_RICHTIFFIPTC: |
| 475 | td->td_richtiffiptcLength = (uint32) va_arg(ap, uint32); |
| 476 | _TIFFsetLongArray ((uint32**)&td->td_richtiffiptcData, |
| 477 | va_arg(ap, uint32*), |
| 478 | td->td_richtiffiptcLength); |
| 479 | break; |
| 480 | case TIFFTAG_XMLPACKET: |
| 481 | td->td_xmlpacketLength = (uint32) va_arg(ap, uint32); |
| 482 | _TIFFsetByteArray(&td->td_xmlpacketData, va_arg(ap, void*), |
| 483 | td->td_xmlpacketLength); |
| 484 | break; |
| 485 | default: { |
| 486 | const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); |
| 487 | TIFFTagValue *tv; |
| 488 | int tv_size, iCustom; |
| 489 | |
| 490 | /* |
| 491 | * This can happen if multiple images are open with |
| 492 | * different codecs which have private tags. The |
| 493 | * global tag information table may then have tags |
| 494 | * that are valid for one file but not the other. |
| 495 | * If the client tries to set a tag that is not valid |
| 496 | * for the image's codec then we'll arrive here. This |
| 497 | * happens, for example, when tiffcp is used to convert |
| 498 | * between compression schemes and codec-specific tags |
| 499 | * are blindly copied. |
| 500 | */ |
| 501 | if( fip == NULL || fip->field_bit != FIELD_CUSTOM ) |
| 502 | { |
| 503 | TIFFError(module, |
| 504 | "%s: Invalid %stag \"%s\" (not supported by codec)", |
| 505 | tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", |
| 506 | _TIFFFieldWithTag(tif, tag)->field_name); |
| 507 | status = 0; |
| 508 | break; |
| 509 | } |
| 510 | |
| 511 | /* |
| 512 | * Find the existing entry for this custom value. |
| 513 | */ |
| 514 | tv = NULL; |
| 515 | for( iCustom = 0; iCustom < td->td_customValueCount; iCustom++ ) |
| 516 | { |
| 517 | if( td->td_customValues[iCustom].info == fip ) |
| 518 | { |
| 519 | tv = td->td_customValues + iCustom; |
| 520 | if( tv->value != NULL ) |
| 521 | _TIFFfree( tv->value ); |
| 522 | break; |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | /* |
| 527 | * Grow the custom list if the entry was not found. |
| 528 | */ |
| 529 | if( tv == NULL ) |
| 530 | { |
| 531 | TIFFTagValue *new_customValues; |
| 532 | |
| 533 | td->td_customValueCount++; |
| 534 | new_customValues = (TIFFTagValue *) |
| 535 | _TIFFrealloc(td->td_customValues, |
| 536 | sizeof(TIFFTagValue) * td->td_customValueCount); |
| 537 | if (!new_customValues) { |
| 538 | TIFFError(module, |
| 539 | "%s: Failed to allocate space for list of custom values", |
| 540 | tif->tif_name); |
| 541 | status = 0; |
| 542 | goto end; |
| 543 | } |
| 544 | |
| 545 | td->td_customValues = new_customValues; |
| 546 | |
| 547 | tv = td->td_customValues + (td->td_customValueCount-1); |
| 548 | tv->info = fip; |
| 549 | tv->value = NULL; |
| 550 | tv->count = 0; |
| 551 | } |
| 552 | |
| 553 | /* |
| 554 | * Set custom value ... save a copy of the custom tag value. |
| 555 | */ |
| 556 | tv_size = TIFFDataWidth(fip->field_type); |
| 557 | if( fip->field_passcount ) |
| 558 | tv->count = (int) va_arg(ap, int); |
| 559 | else |
| 560 | tv->count = 1; |
| 561 | if( fip->field_passcount ) |
| 562 | { |
| 563 | tv->value = _TIFFmalloc(tv_size * tv->count); |
| 564 | if ( !tv->value ) { |
| 565 | va_end(ap); |
| 566 | return 0; |
| 567 | } |
| 568 | _TIFFmemcpy( tv->value, (void *) va_arg(ap,void*), |
| 569 | tv->count * tv_size ); |
| 570 | } |
| 571 | else if( fip->field_type == TIFF_ASCII ) |
| 572 | { |
| 573 | const char *value = (const char *) va_arg(ap,const char *); |
| 574 | tv->count = strlen(value)+1; |
| 575 | tv->value = _TIFFmalloc(tv->count); |
| 576 | if ( !tv->value ) { |
| 577 | va_end(ap); |
| 578 | return 0; |
| 579 | } |
| 580 | strcpy( tv->value, value ); |
| 581 | } |
| 582 | else |
| 583 | { |
| 584 | /* not supporting "pass by value" types yet */ |
| 585 | TIFFWarning(module, " ... pass by value not implemented."); |
| 586 | |
| 587 | tv->value = _TIFFmalloc(tv_size * tv->count); |
| 588 | if ( !tv->value ) { |
| 589 | va_end(ap); |
| 590 | return 0; |
| 591 | } |
| 592 | _TIFFmemset( tv->value, 0, tv->count * tv_size ); |
| 593 | status = 0; |
| 594 | } |
| 595 | } |
| 596 | } |
| 597 | if (status) { |
| 598 | TIFFSetFieldBit(tif, _TIFFFieldWithTag(tif, tag)->field_bit); |
| 599 | tif->tif_flags |= TIFF_DIRTYDIRECT; |
| 600 | } |
| 601 | |
| 602 | end: |
| 603 | va_end(ap); |
| 604 | return (status); |
| 605 | badvalue: |
| 606 | TIFFError(module, "%.1000s: Bad value %d for \"%s\"", |
| 607 | tif->tif_name, v, _TIFFFieldWithTag(tif, tag)->field_name); |
| 608 | va_end(ap); |
| 609 | return (0); |
| 610 | badvalue32: |
| 611 | TIFFError(module, "%.1000s: Bad value %ld for \"%s\"", |
| 612 | tif->tif_name, v32, _TIFFFieldWithTag(tif, tag)->field_name); |
| 613 | va_end(ap); |
| 614 | return (0); |
| 615 | badvaluedbl: |
| 616 | TIFFError(module, "%.1000s: Bad value %f for \"%s\"", |
| 617 | tif->tif_name, d, _TIFFFieldWithTag(tif, tag)->field_name); |
| 618 | va_end(ap); |
| 619 | return (0); |
| 620 | } |
| 621 | |
| 622 | /* |
| 623 | * Return 1/0 according to whether or not |
| 624 | * it is permissible to set the tag's value. |
| 625 | * Note that we allow ImageLength to be changed |
| 626 | * so that we can append and extend to images. |
| 627 | * Any other tag may not be altered once writing |
| 628 | * has commenced, unless its value has no effect |
| 629 | * on the format of the data that is written. |
| 630 | */ |
| 631 | static int |
| 632 | OkToChangeTag(TIFF* tif, ttag_t tag) |
| 633 | { |
| 634 | const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); |
| 635 | if (!fip) { /* unknown tag */ |
| 636 | TIFFError("TIFFSetField", "%s: Unknown %stag %u", |
| 637 | tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", tag); |
| 638 | return (0); |
| 639 | } |
| 640 | if (tag != TIFFTAG_IMAGELENGTH && (tif->tif_flags & TIFF_BEENWRITING) && |
| 641 | !fip->field_oktochange) { |
| 642 | /* |
| 643 | * Consult info table to see if tag can be changed |
| 644 | * after we've started writing. We only allow changes |
| 645 | * to those tags that don't/shouldn't affect the |
| 646 | * compression and/or format of the data. |
| 647 | */ |
| 648 | TIFFError("TIFFSetField", |
| 649 | "%s: Cannot modify tag \"%s\" while writing", |
| 650 | tif->tif_name, fip->field_name); |
| 651 | return (0); |
| 652 | } |
| 653 | return (1); |
| 654 | } |
| 655 | |
| 656 | /* |
| 657 | * Record the value of a field in the |
| 658 | * internal directory structure. The |
| 659 | * field will be written to the file |
| 660 | * when/if the directory structure is |
| 661 | * updated. |
| 662 | */ |
| 663 | int |
| 664 | TIFFSetField(TIFF* tif, ttag_t tag, ...) |
| 665 | { |
| 666 | va_list ap; |
| 667 | int status; |
| 668 | |
| 669 | va_start(ap, tag); |
| 670 | status = TIFFVSetField(tif, tag, ap); |
| 671 | va_end(ap); |
| 672 | return (status); |
| 673 | } |
| 674 | |
| 675 | /* |
| 676 | * Like TIFFSetField, but taking a varargs |
| 677 | * parameter list. This routine is useful |
| 678 | * for building higher-level interfaces on |
| 679 | * top of the library. |
| 680 | */ |
| 681 | int |
| 682 | TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) |
| 683 | { |
| 684 | return OkToChangeTag(tif, tag) ? |
| 685 | (*tif->tif_tagmethods.vsetfield)(tif, tag, ap) : 0; |
| 686 | } |
| 687 | |
| 688 | static int |
| 689 | _TIFFVGetField(TIFF* tif, ttag_t tag, va_list ap) |
| 690 | { |
| 691 | TIFFDirectory* td = &tif->tif_dir; |
| 692 | int ret_val = 1; |
| 693 | |
| 694 | switch (tag) { |
| 695 | case TIFFTAG_SUBFILETYPE: |
| 696 | *va_arg(ap, uint32*) = td->td_subfiletype; |
| 697 | break; |
| 698 | case TIFFTAG_IMAGEWIDTH: |
| 699 | *va_arg(ap, uint32*) = td->td_imagewidth; |
| 700 | break; |
| 701 | case TIFFTAG_IMAGELENGTH: |
| 702 | *va_arg(ap, uint32*) = td->td_imagelength; |
| 703 | break; |
| 704 | case TIFFTAG_BITSPERSAMPLE: |
| 705 | *va_arg(ap, uint16*) = td->td_bitspersample; |
| 706 | break; |
| 707 | case TIFFTAG_COMPRESSION: |
| 708 | *va_arg(ap, uint16*) = td->td_compression; |
| 709 | break; |
| 710 | case TIFFTAG_PHOTOMETRIC: |
| 711 | *va_arg(ap, uint16*) = td->td_photometric; |
| 712 | break; |
| 713 | case TIFFTAG_THRESHHOLDING: |
| 714 | *va_arg(ap, uint16*) = td->td_threshholding; |
| 715 | break; |
| 716 | case TIFFTAG_FILLORDER: |
| 717 | *va_arg(ap, uint16*) = td->td_fillorder; |
| 718 | break; |
| 719 | case TIFFTAG_DOCUMENTNAME: |
| 720 | *va_arg(ap, char**) = td->td_documentname; |
| 721 | break; |
| 722 | case TIFFTAG_ARTIST: |
| 723 | *va_arg(ap, char**) = td->td_artist; |
| 724 | break; |
| 725 | case TIFFTAG_DATETIME: |
| 726 | *va_arg(ap, char**) = td->td_datetime; |
| 727 | break; |
| 728 | case TIFFTAG_HOSTCOMPUTER: |
| 729 | *va_arg(ap, char**) = td->td_hostcomputer; |
| 730 | break; |
| 731 | case TIFFTAG_IMAGEDESCRIPTION: |
| 732 | *va_arg(ap, char**) = td->td_imagedescription; |
| 733 | break; |
| 734 | case TIFFTAG_MAKE: |
| 735 | *va_arg(ap, char**) = td->td_make; |
| 736 | break; |
| 737 | case TIFFTAG_MODEL: |
| 738 | *va_arg(ap, char**) = td->td_model; |
| 739 | break; |
| 740 | case TIFFTAG_COPYRIGHT: |
| 741 | *va_arg(ap, char**) = td->td_copyright; |
| 742 | break; |
| 743 | case TIFFTAG_ORIENTATION: |
| 744 | *va_arg(ap, uint16*) = td->td_orientation; |
| 745 | break; |
| 746 | case TIFFTAG_SAMPLESPERPIXEL: |
| 747 | *va_arg(ap, uint16*) = td->td_samplesperpixel; |
| 748 | break; |
| 749 | case TIFFTAG_ROWSPERSTRIP: |
| 750 | *va_arg(ap, uint32*) = td->td_rowsperstrip; |
| 751 | break; |
| 752 | case TIFFTAG_MINSAMPLEVALUE: |
| 753 | *va_arg(ap, uint16*) = td->td_minsamplevalue; |
| 754 | break; |
| 755 | case TIFFTAG_MAXSAMPLEVALUE: |
| 756 | *va_arg(ap, uint16*) = td->td_maxsamplevalue; |
| 757 | break; |
| 758 | case TIFFTAG_SMINSAMPLEVALUE: |
| 759 | *va_arg(ap, double*) = td->td_sminsamplevalue; |
| 760 | break; |
| 761 | case TIFFTAG_SMAXSAMPLEVALUE: |
| 762 | *va_arg(ap, double*) = td->td_smaxsamplevalue; |
| 763 | break; |
| 764 | case TIFFTAG_XRESOLUTION: |
| 765 | *va_arg(ap, float*) = td->td_xresolution; |
| 766 | break; |
| 767 | case TIFFTAG_YRESOLUTION: |
| 768 | *va_arg(ap, float*) = td->td_yresolution; |
| 769 | break; |
| 770 | case TIFFTAG_PLANARCONFIG: |
| 771 | *va_arg(ap, uint16*) = td->td_planarconfig; |
| 772 | break; |
| 773 | case TIFFTAG_XPOSITION: |
| 774 | *va_arg(ap, float*) = td->td_xposition; |
| 775 | break; |
| 776 | case TIFFTAG_YPOSITION: |
| 777 | *va_arg(ap, float*) = td->td_yposition; |
| 778 | break; |
| 779 | case TIFFTAG_PAGENAME: |
| 780 | *va_arg(ap, char**) = td->td_pagename; |
| 781 | break; |
| 782 | case TIFFTAG_RESOLUTIONUNIT: |
| 783 | *va_arg(ap, uint16*) = td->td_resolutionunit; |
| 784 | break; |
| 785 | case TIFFTAG_PAGENUMBER: |
| 786 | *va_arg(ap, uint16*) = td->td_pagenumber[0]; |
| 787 | *va_arg(ap, uint16*) = td->td_pagenumber[1]; |
| 788 | break; |
| 789 | case TIFFTAG_HALFTONEHINTS: |
| 790 | *va_arg(ap, uint16*) = td->td_halftonehints[0]; |
| 791 | *va_arg(ap, uint16*) = td->td_halftonehints[1]; |
| 792 | break; |
| 793 | case TIFFTAG_COLORMAP: |
| 794 | *va_arg(ap, uint16**) = td->td_colormap[0]; |
| 795 | *va_arg(ap, uint16**) = td->td_colormap[1]; |
| 796 | *va_arg(ap, uint16**) = td->td_colormap[2]; |
| 797 | break; |
| 798 | case TIFFTAG_STRIPOFFSETS: |
| 799 | case TIFFTAG_TILEOFFSETS: |
| 800 | *va_arg(ap, uint32**) = td->td_stripoffset; |
| 801 | break; |
| 802 | case TIFFTAG_STRIPBYTECOUNTS: |
| 803 | case TIFFTAG_TILEBYTECOUNTS: |
| 804 | *va_arg(ap, uint32**) = td->td_stripbytecount; |
| 805 | break; |
| 806 | case TIFFTAG_MATTEING: |
| 807 | *va_arg(ap, uint16*) = |
| 808 | (td->td_extrasamples == 1 && |
| 809 | td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); |
| 810 | break; |
| 811 | case TIFFTAG_EXTRASAMPLES: |
| 812 | *va_arg(ap, uint16*) = td->td_extrasamples; |
| 813 | *va_arg(ap, uint16**) = td->td_sampleinfo; |
| 814 | break; |
| 815 | case TIFFTAG_TILEWIDTH: |
| 816 | *va_arg(ap, uint32*) = td->td_tilewidth; |
| 817 | break; |
| 818 | case TIFFTAG_TILELENGTH: |
| 819 | *va_arg(ap, uint32*) = td->td_tilelength; |
| 820 | break; |
| 821 | case TIFFTAG_TILEDEPTH: |
| 822 | *va_arg(ap, uint32*) = td->td_tiledepth; |
| 823 | break; |
| 824 | case TIFFTAG_DATATYPE: |
| 825 | switch (td->td_sampleformat) { |
| 826 | case SAMPLEFORMAT_UINT: |
| 827 | *va_arg(ap, uint16*) = DATATYPE_UINT; |
| 828 | break; |
| 829 | case SAMPLEFORMAT_INT: |
| 830 | *va_arg(ap, uint16*) = DATATYPE_INT; |
| 831 | break; |
| 832 | case SAMPLEFORMAT_IEEEFP: |
| 833 | *va_arg(ap, uint16*) = DATATYPE_IEEEFP; |
| 834 | break; |
| 835 | case SAMPLEFORMAT_VOID: |
| 836 | *va_arg(ap, uint16*) = DATATYPE_VOID; |
| 837 | break; |
| 838 | } |
| 839 | break; |
| 840 | case TIFFTAG_SAMPLEFORMAT: |
| 841 | *va_arg(ap, uint16*) = td->td_sampleformat; |
| 842 | break; |
| 843 | case TIFFTAG_IMAGEDEPTH: |
| 844 | *va_arg(ap, uint32*) = td->td_imagedepth; |
| 845 | break; |
| 846 | case TIFFTAG_STONITS: |
| 847 | *va_arg(ap, double*) = td->td_stonits; |
| 848 | break; |
| 849 | case TIFFTAG_SUBIFD: |
| 850 | *va_arg(ap, uint16*) = td->td_nsubifd; |
| 851 | *va_arg(ap, uint32**) = td->td_subifd; |
| 852 | break; |
| 853 | case TIFFTAG_YCBCRCOEFFICIENTS: |
| 854 | *va_arg(ap, float**) = td->td_ycbcrcoeffs; |
| 855 | break; |
| 856 | case TIFFTAG_YCBCRPOSITIONING: |
| 857 | *va_arg(ap, uint16*) = td->td_ycbcrpositioning; |
| 858 | break; |
| 859 | case TIFFTAG_YCBCRSUBSAMPLING: |
| 860 | *va_arg(ap, uint16*) = td->td_ycbcrsubsampling[0]; |
| 861 | *va_arg(ap, uint16*) = td->td_ycbcrsubsampling[1]; |
| 862 | break; |
| 863 | case TIFFTAG_WHITEPOINT: |
| 864 | *va_arg(ap, float**) = td->td_whitepoint; |
| 865 | break; |
| 866 | case TIFFTAG_PRIMARYCHROMATICITIES: |
| 867 | *va_arg(ap, float**) = td->td_primarychromas; |
| 868 | break; |
| 869 | case TIFFTAG_TRANSFERFUNCTION: |
| 870 | *va_arg(ap, uint16**) = td->td_transferfunction[0]; |
| 871 | if (td->td_samplesperpixel - td->td_extrasamples > 1) { |
| 872 | *va_arg(ap, uint16**) = td->td_transferfunction[1]; |
| 873 | *va_arg(ap, uint16**) = td->td_transferfunction[2]; |
| 874 | } |
| 875 | break; |
| 876 | case TIFFTAG_REFERENCEBLACKWHITE: |
| 877 | *va_arg(ap, float**) = td->td_refblackwhite; |
| 878 | break; |
| 879 | case TIFFTAG_INKSET: |
| 880 | *va_arg(ap, uint16*) = td->td_inkset; |
| 881 | break; |
| 882 | case TIFFTAG_DOTRANGE: |
| 883 | *va_arg(ap, uint16*) = td->td_dotrange[0]; |
| 884 | *va_arg(ap, uint16*) = td->td_dotrange[1]; |
| 885 | break; |
| 886 | case TIFFTAG_INKNAMES: |
| 887 | *va_arg(ap, char**) = td->td_inknames; |
| 888 | break; |
| 889 | case TIFFTAG_NUMBEROFINKS: |
| 890 | *va_arg(ap, uint16*) = td->td_ninks; |
| 891 | break; |
| 892 | case TIFFTAG_TARGETPRINTER: |
| 893 | *va_arg(ap, char**) = td->td_targetprinter; |
| 894 | break; |
| 895 | case TIFFTAG_ICCPROFILE: |
| 896 | *va_arg(ap, uint32*) = td->td_profileLength; |
| 897 | *va_arg(ap, void**) = td->td_profileData; |
| 898 | break; |
| 899 | case TIFFTAG_PHOTOSHOP: |
| 900 | *va_arg(ap, uint32*) = td->td_photoshopLength; |
| 901 | *va_arg(ap, void**) = td->td_photoshopData; |
| 902 | break; |
| 903 | case TIFFTAG_RICHTIFFIPTC: |
| 904 | *va_arg(ap, uint32*) = td->td_richtiffiptcLength; |
| 905 | *va_arg(ap, void**) = td->td_richtiffiptcData; |
| 906 | break; |
| 907 | case TIFFTAG_XMLPACKET: |
| 908 | *va_arg(ap, uint32*) = td->td_xmlpacketLength; |
| 909 | *va_arg(ap, void**) = td->td_xmlpacketData; |
| 910 | break; |
| 911 | /* Begin Pixar Tags */ |
| 912 | case TIFFTAG_PIXAR_IMAGEFULLWIDTH: |
| 913 | *va_arg(ap, uint32*) = td->td_imagefullwidth; |
| 914 | break; |
| 915 | case TIFFTAG_PIXAR_IMAGEFULLLENGTH: |
| 916 | *va_arg(ap, uint32*) = td->td_imagefulllength; |
| 917 | break; |
| 918 | case TIFFTAG_PIXAR_TEXTUREFORMAT: |
| 919 | *va_arg(ap, char**) = td->td_textureformat; |
| 920 | break; |
| 921 | case TIFFTAG_PIXAR_WRAPMODES: |
| 922 | *va_arg(ap, char**) = td->td_wrapmodes; |
| 923 | break; |
| 924 | case TIFFTAG_PIXAR_FOVCOT: |
| 925 | *va_arg(ap, float*) = td->td_fovcot; |
| 926 | break; |
| 927 | case TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN: |
| 928 | *va_arg(ap, float**) = td->td_matrixWorldToScreen; |
| 929 | break; |
| 930 | case TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA: |
| 931 | *va_arg(ap, float**) = td->td_matrixWorldToCamera; |
| 932 | break; |
| 933 | /* End Pixar Tags */ |
| 934 | |
| 935 | default: |
| 936 | { |
| 937 | const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); |
| 938 | int i; |
| 939 | |
| 940 | /* |
| 941 | * This can happen if multiple images are open with |
| 942 | * different codecs which have private tags. The |
| 943 | * global tag information table may then have tags |
| 944 | * that are valid for one file but not the other. |
| 945 | * If the client tries to get a tag that is not valid |
| 946 | * for the image's codec then we'll arrive here. |
| 947 | */ |
| 948 | if( fip == NULL || fip->field_bit != FIELD_CUSTOM ) |
| 949 | { |
| 950 | TIFFError("_TIFFVGetField", |
| 951 | "%s: Invalid %stag \"%s\" (not supported by codec)", |
| 952 | tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", |
| 953 | _TIFFFieldWithTag(tif, tag)->field_name); |
| 954 | ret_val = 0; |
| 955 | break; |
| 956 | } |
| 957 | |
| 958 | /* |
| 959 | ** Do we have a custom value? |
| 960 | */ |
| 961 | ret_val = 0; |
| 962 | for( i = 0; i < td->td_customValueCount; i++ ) |
| 963 | { |
| 964 | TIFFTagValue *tv = td->td_customValues + i; |
| 965 | |
| 966 | if( tv->info->field_tag != tag ) |
| 967 | continue; |
| 968 | |
| 969 | if( fip->field_passcount ) |
| 970 | { |
| 971 | *va_arg(ap, u_short *) = (u_short) tv->count; |
| 972 | *va_arg(ap, void **) = tv->value; |
| 973 | ret_val = 1; |
| 974 | break; |
| 975 | } |
| 976 | else if( fip->field_type == TIFF_ASCII ) |
| 977 | { |
| 978 | *va_arg(ap, void **) = tv->value; |
| 979 | ret_val = 1; |
| 980 | break; |
| 981 | } |
| 982 | else |
| 983 | { |
| 984 | printf( "TIFFVGetField ... pass by value not imp.\n" ); |
| 985 | break; |
| 986 | } |
| 987 | } |
| 988 | } |
| 989 | } |
| 990 | return( ret_val ); |
| 991 | } |
| 992 | |
| 993 | /* |
| 994 | * Return the value of a field in the |
| 995 | * internal directory structure. |
| 996 | */ |
| 997 | int |
| 998 | TIFFGetField(TIFF* tif, ttag_t tag, ...) |
| 999 | { |
| 1000 | int status; |
| 1001 | va_list ap; |
| 1002 | |
| 1003 | va_start(ap, tag); |
| 1004 | status = TIFFVGetField(tif, tag, ap); |
| 1005 | va_end(ap); |
| 1006 | return (status); |
| 1007 | } |
| 1008 | |
| 1009 | /* |
| 1010 | * Like TIFFGetField, but taking a varargs |
| 1011 | * parameter list. This routine is useful |
| 1012 | * for building higher-level interfaces on |
| 1013 | * top of the library. |
| 1014 | */ |
| 1015 | int |
| 1016 | TIFFVGetField(TIFF* tif, ttag_t tag, va_list ap) |
| 1017 | { |
| 1018 | const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); |
| 1019 | return (fip && (isPseudoTag(tag) || TIFFFieldSet(tif, fip->field_bit)) ? |
| 1020 | (*tif->tif_tagmethods.vgetfield)(tif, tag, ap) : 0); |
| 1021 | } |
| 1022 | |
| 1023 | #define CleanupField(member) { \ |
| 1024 | if (td->member) { \ |
| 1025 | _TIFFfree(td->member); \ |
| 1026 | td->member = 0; \ |
| 1027 | } \ |
| 1028 | } |
| 1029 | |
| 1030 | /* |
| 1031 | * Release storage associated with a directory. |
| 1032 | */ |
| 1033 | void |
| 1034 | TIFFFreeDirectory(TIFF* tif) |
| 1035 | { |
| 1036 | TIFFDirectory *td = &tif->tif_dir; |
| 1037 | int i; |
| 1038 | |
| 1039 | CleanupField(td_colormap[0]); |
| 1040 | CleanupField(td_colormap[1]); |
| 1041 | CleanupField(td_colormap[2]); |
| 1042 | CleanupField(td_documentname); |
| 1043 | CleanupField(td_artist); |
| 1044 | CleanupField(td_datetime); |
| 1045 | CleanupField(td_hostcomputer); |
| 1046 | CleanupField(td_imagedescription); |
| 1047 | CleanupField(td_make); |
| 1048 | CleanupField(td_model); |
| 1049 | CleanupField(td_copyright); |
| 1050 | CleanupField(td_pagename); |
| 1051 | CleanupField(td_sampleinfo); |
| 1052 | CleanupField(td_subifd); |
| 1053 | CleanupField(td_ycbcrcoeffs); |
| 1054 | CleanupField(td_inknames); |
| 1055 | CleanupField(td_targetprinter); |
| 1056 | CleanupField(td_whitepoint); |
| 1057 | CleanupField(td_primarychromas); |
| 1058 | CleanupField(td_refblackwhite); |
| 1059 | CleanupField(td_transferfunction[0]); |
| 1060 | CleanupField(td_transferfunction[1]); |
| 1061 | CleanupField(td_transferfunction[2]); |
| 1062 | CleanupField(td_profileData); |
| 1063 | CleanupField(td_photoshopData); |
| 1064 | CleanupField(td_richtiffiptcData); |
| 1065 | CleanupField(td_xmlpacketData); |
| 1066 | CleanupField(td_stripoffset); |
| 1067 | CleanupField(td_stripbytecount); |
| 1068 | /* Begin Pixar Tags */ |
| 1069 | CleanupField(td_textureformat); |
| 1070 | CleanupField(td_wrapmodes); |
| 1071 | CleanupField(td_matrixWorldToScreen); |
| 1072 | CleanupField(td_matrixWorldToCamera); |
| 1073 | /* End Pixar Tags */ |
| 1074 | |
| 1075 | /* Cleanup custom tag values */ |
| 1076 | for( i = 0; i < td->td_customValueCount; i++ ) |
| 1077 | _TIFFfree( td->td_customValues[i].value ); |
| 1078 | |
| 1079 | if( td->td_customValues != NULL ) |
| 1080 | _TIFFfree( td->td_customValues ); |
| 1081 | |
| 1082 | } |
| 1083 | #undef CleanupField |
| 1084 | |
| 1085 | /* |
| 1086 | * Client Tag extension support (from Niles Ritter). |
| 1087 | */ |
| 1088 | static TIFFExtendProc _TIFFextender = (TIFFExtendProc) NULL; |
| 1089 | |
| 1090 | TIFFExtendProc |
| 1091 | TIFFSetTagExtender(TIFFExtendProc extender) |
| 1092 | { |
| 1093 | TIFFExtendProc prev = _TIFFextender; |
| 1094 | _TIFFextender = extender; |
| 1095 | return (prev); |
| 1096 | } |
| 1097 | |
| 1098 | /* |
| 1099 | * Setup for a new directory. Should we automatically call |
| 1100 | * TIFFWriteDirectory() if the current one is dirty? |
| 1101 | * |
| 1102 | * The newly created directory will not exist on the file till |
| 1103 | * TIFFWriteDirectory(), TIFFFlush() or TIFFClose() is called. |
| 1104 | */ |
| 1105 | int |
| 1106 | TIFFCreateDirectory(TIFF* tif) |
| 1107 | { |
| 1108 | TIFFDefaultDirectory(tif); |
| 1109 | tif->tif_diroff = 0; |
| 1110 | tif->tif_nextdiroff = 0; |
| 1111 | tif->tif_curoff = 0; |
| 1112 | tif->tif_row = (uint32) -1; |
| 1113 | tif->tif_curstrip = (tstrip_t) -1; |
| 1114 | |
| 1115 | return 0; |
| 1116 | } |
| 1117 | |
| 1118 | /* |
| 1119 | * Setup a default directory structure. |
| 1120 | */ |
| 1121 | int |
| 1122 | TIFFDefaultDirectory(TIFF* tif) |
| 1123 | { |
| 1124 | register TIFFDirectory* td = &tif->tif_dir; |
| 1125 | |
| 1126 | _TIFFSetupFieldInfo(tif); |
| 1127 | _TIFFmemset(td, 0, sizeof (*td)); |
| 1128 | td->td_fillorder = FILLORDER_MSB2LSB; |
| 1129 | td->td_bitspersample = 1; |
| 1130 | td->td_threshholding = THRESHHOLD_BILEVEL; |
| 1131 | td->td_orientation = ORIENTATION_TOPLEFT; |
| 1132 | td->td_samplesperpixel = 1; |
| 1133 | td->td_rowsperstrip = (uint32) -1; |
| 1134 | td->td_tilewidth = (uint32) -1; |
| 1135 | td->td_tilelength = (uint32) -1; |
| 1136 | td->td_tiledepth = 1; |
| 1137 | td->td_resolutionunit = RESUNIT_INCH; |
| 1138 | td->td_sampleformat = SAMPLEFORMAT_UINT; |
| 1139 | td->td_imagedepth = 1; |
| 1140 | td->td_ycbcrsubsampling[0] = 2; |
| 1141 | td->td_ycbcrsubsampling[1] = 2; |
| 1142 | td->td_ycbcrpositioning = YCBCRPOSITION_CENTERED; |
| 1143 | td->td_inkset = INKSET_CMYK; |
| 1144 | td->td_ninks = 4; |
| 1145 | tif->tif_postdecode = _TIFFNoPostDecode; |
| 1146 | tif->tif_tagmethods.vsetfield = _TIFFVSetField; |
| 1147 | tif->tif_tagmethods.vgetfield = _TIFFVGetField; |
| 1148 | tif->tif_tagmethods.printdir = NULL; |
| 1149 | /* |
| 1150 | * Give client code a chance to install their own |
| 1151 | * tag extensions & methods, prior to compression overloads. |
| 1152 | */ |
| 1153 | if (_TIFFextender) |
| 1154 | (*_TIFFextender)(tif); |
| 1155 | (void) TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); |
| 1156 | /* |
| 1157 | * NB: The directory is marked dirty as a result of setting |
| 1158 | * up the default compression scheme. However, this really |
| 1159 | * isn't correct -- we want TIFF_DIRTYDIRECT to be set only |
| 1160 | * if the user does something. We could just do the setup |
| 1161 | * by hand, but it seems better to use the normal mechanism |
| 1162 | * (i.e. TIFFSetField). |
| 1163 | */ |
| 1164 | tif->tif_flags &= ~TIFF_DIRTYDIRECT; |
| 1165 | |
| 1166 | /* |
| 1167 | * As per http://bugzilla.remotesensing.org/show_bug.cgi?id=19 |
| 1168 | * we clear the ISTILED flag when setting up a new directory. |
| 1169 | * Should we also be clearing stuff like INSUBIFD? |
| 1170 | */ |
| 1171 | tif->tif_flags &= ~TIFF_ISTILED; |
| 1172 | |
| 1173 | return (1); |
| 1174 | } |
| 1175 | |
| 1176 | static int |
| 1177 | TIFFAdvanceDirectory(TIFF* tif, uint32* nextdir, toff_t* off) |
| 1178 | { |
| 1179 | static const char module[] = "TIFFAdvanceDirectory"; |
| 1180 | uint16 dircount; |
| 1181 | if (isMapped(tif)) |
| 1182 | { |
| 1183 | toff_t poff=*nextdir; |
| 1184 | if (poff+sizeof(uint16) > tif->tif_size) |
| 1185 | { |
| 1186 | TIFFError(module, "%s: Error fetching directory count", |
| 1187 | tif->tif_name); |
| 1188 | return (0); |
| 1189 | } |
| 1190 | _TIFFmemcpy(&dircount, tif->tif_base+poff, sizeof (uint16)); |
| 1191 | if (tif->tif_flags & TIFF_SWAB) |
| 1192 | TIFFSwabShort(&dircount); |
| 1193 | poff+=sizeof (uint16)+dircount*sizeof (TIFFDirEntry); |
| 1194 | if (off != NULL) |
| 1195 | *off = poff; |
| 1196 | if (((toff_t) (poff+sizeof (uint32))) > tif->tif_size) |
| 1197 | { |
| 1198 | TIFFError(module, "%s: Error fetching directory link", |
| 1199 | tif->tif_name); |
| 1200 | return (0); |
| 1201 | } |
| 1202 | _TIFFmemcpy(nextdir, tif->tif_base+poff, sizeof (uint32)); |
| 1203 | if (tif->tif_flags & TIFF_SWAB) |
| 1204 | TIFFSwabLong(nextdir); |
| 1205 | return (1); |
| 1206 | } |
| 1207 | else |
| 1208 | { |
| 1209 | if (!SeekOK(tif, *nextdir) || |
| 1210 | !ReadOK(tif, &dircount, sizeof (uint16))) { |
| 1211 | TIFFError(module, "%s: Error fetching directory count", |
| 1212 | tif->tif_name); |
| 1213 | return (0); |
| 1214 | } |
| 1215 | if (tif->tif_flags & TIFF_SWAB) |
| 1216 | TIFFSwabShort(&dircount); |
| 1217 | if (off != NULL) |
| 1218 | *off = TIFFSeekFile(tif, |
| 1219 | dircount*sizeof (TIFFDirEntry), SEEK_CUR); |
| 1220 | else |
| 1221 | (void) TIFFSeekFile(tif, |
| 1222 | dircount*sizeof (TIFFDirEntry), SEEK_CUR); |
| 1223 | if (!ReadOK(tif, nextdir, sizeof (uint32))) { |
| 1224 | TIFFError(module, "%s: Error fetching directory link", |
| 1225 | tif->tif_name); |
| 1226 | return (0); |
| 1227 | } |
| 1228 | if (tif->tif_flags & TIFF_SWAB) |
| 1229 | TIFFSwabLong(nextdir); |
| 1230 | return (1); |
| 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | /* |
| 1235 | * Count the number of directories in a file. |
| 1236 | */ |
| 1237 | tdir_t |
| 1238 | TIFFNumberOfDirectories(TIFF* tif) |
| 1239 | { |
| 1240 | toff_t nextdir = tif->tif_header.tiff_diroff; |
| 1241 | tdir_t n = 0; |
| 1242 | |
| 1243 | while (nextdir != 0 && TIFFAdvanceDirectory(tif, &nextdir, NULL)) |
| 1244 | n++; |
| 1245 | return (n); |
| 1246 | } |
| 1247 | |
| 1248 | /* |
| 1249 | * Set the n-th directory as the current directory. |
| 1250 | * NB: Directories are numbered starting at 0. |
| 1251 | */ |
| 1252 | int |
| 1253 | TIFFSetDirectory(TIFF* tif, tdir_t dirn) |
| 1254 | { |
| 1255 | toff_t nextdir; |
| 1256 | tdir_t n; |
| 1257 | |
| 1258 | nextdir = tif->tif_header.tiff_diroff; |
| 1259 | for (n = dirn; n > 0 && nextdir != 0; n--) |
| 1260 | if (!TIFFAdvanceDirectory(tif, &nextdir, NULL)) |
| 1261 | return (0); |
| 1262 | tif->tif_nextdiroff = nextdir; |
| 1263 | /* |
| 1264 | * Set curdir to the actual directory index. The |
| 1265 | * -1 is because TIFFReadDirectory will increment |
| 1266 | * tif_curdir after successfully reading the directory. |
| 1267 | */ |
| 1268 | tif->tif_curdir = (dirn - n) - 1; |
| 1269 | /* |
| 1270 | * Reset tif_dirnumber counter nad start new list of seen directories. |
| 1271 | * We need this in order to prevent IFD loops. |
| 1272 | */ |
| 1273 | tif->tif_dirnumber = 0; |
| 1274 | return (TIFFReadDirectory(tif)); |
| 1275 | } |
| 1276 | |
| 1277 | /* |
| 1278 | * Set the current directory to be the directory |
| 1279 | * located at the specified file offset. This interface |
| 1280 | * is used mainly to access directories linked with |
| 1281 | * the SubIFD tag (e.g. thumbnail images). |
| 1282 | */ |
| 1283 | int |
| 1284 | TIFFSetSubDirectory(TIFF* tif, uint32 diroff) |
| 1285 | { |
| 1286 | tif->tif_nextdiroff = diroff; |
| 1287 | /* |
| 1288 | * Reset tif_dirnumber counter nad start new list of seen directories. |
| 1289 | * We need this in order to prevent IFD loops. |
| 1290 | */ |
| 1291 | tif->tif_dirnumber = 0; |
| 1292 | return (TIFFReadDirectory(tif)); |
| 1293 | } |
| 1294 | |
| 1295 | /* |
| 1296 | * Return file offset of the current directory. |
| 1297 | */ |
| 1298 | uint32 |
| 1299 | TIFFCurrentDirOffset(TIFF* tif) |
| 1300 | { |
| 1301 | return (tif->tif_diroff); |
| 1302 | } |
| 1303 | |
| 1304 | /* |
| 1305 | * Return an indication of whether or not we are |
| 1306 | * at the last directory in the file. |
| 1307 | */ |
| 1308 | int |
| 1309 | TIFFLastDirectory(TIFF* tif) |
| 1310 | { |
| 1311 | return (tif->tif_nextdiroff == 0); |
| 1312 | } |
| 1313 | |
| 1314 | /* |
| 1315 | * Unlink the specified directory from the directory chain. |
| 1316 | */ |
| 1317 | int |
| 1318 | TIFFUnlinkDirectory(TIFF* tif, tdir_t dirn) |
| 1319 | { |
| 1320 | static const char module[] = "TIFFUnlinkDirectory"; |
| 1321 | toff_t nextdir; |
| 1322 | toff_t off; |
| 1323 | tdir_t n; |
| 1324 | |
| 1325 | if (tif->tif_mode == O_RDONLY) { |
| 1326 | TIFFError(module, "Can not unlink directory in read-only file"); |
| 1327 | return (0); |
| 1328 | } |
| 1329 | /* |
| 1330 | * Go to the directory before the one we want |
| 1331 | * to unlink and nab the offset of the link |
| 1332 | * field we'll need to patch. |
| 1333 | */ |
| 1334 | nextdir = tif->tif_header.tiff_diroff; |
| 1335 | off = sizeof (uint16) + sizeof (uint16); |
| 1336 | for (n = dirn-1; n > 0; n--) { |
| 1337 | if (nextdir == 0) { |
| 1338 | TIFFError(module, "Directory %d does not exist", dirn); |
| 1339 | return (0); |
| 1340 | } |
| 1341 | if (!TIFFAdvanceDirectory(tif, &nextdir, &off)) |
| 1342 | return (0); |
| 1343 | } |
| 1344 | /* |
| 1345 | * Advance to the directory to be unlinked and fetch |
| 1346 | * the offset of the directory that follows. |
| 1347 | */ |
| 1348 | if (!TIFFAdvanceDirectory(tif, &nextdir, NULL)) |
| 1349 | return (0); |
| 1350 | /* |
| 1351 | * Go back and patch the link field of the preceding |
| 1352 | * directory to point to the offset of the directory |
| 1353 | * that follows. |
| 1354 | */ |
| 1355 | (void) TIFFSeekFile(tif, off, SEEK_SET); |
| 1356 | if (tif->tif_flags & TIFF_SWAB) |
| 1357 | TIFFSwabLong(&nextdir); |
| 1358 | if (!WriteOK(tif, &nextdir, sizeof (uint32))) { |
| 1359 | TIFFError(module, "Error writing directory link"); |
| 1360 | return (0); |
| 1361 | } |
| 1362 | /* |
| 1363 | * Leave directory state setup safely. We don't have |
| 1364 | * facilities for doing inserting and removing directories, |
| 1365 | * so it's safest to just invalidate everything. This |
| 1366 | * means that the caller can only append to the directory |
| 1367 | * chain. |
| 1368 | */ |
| 1369 | (*tif->tif_cleanup)(tif); |
| 1370 | if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { |
| 1371 | _TIFFfree(tif->tif_rawdata); |
| 1372 | tif->tif_rawdata = NULL; |
| 1373 | tif->tif_rawcc = 0; |
| 1374 | } |
| 1375 | tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP|TIFF_POSTENCODE); |
| 1376 | TIFFFreeDirectory(tif); |
| 1377 | TIFFDefaultDirectory(tif); |
| 1378 | tif->tif_diroff = 0; /* force link on next write */ |
| 1379 | tif->tif_nextdiroff = 0; /* next write must be at end */ |
| 1380 | tif->tif_curoff = 0; |
| 1381 | tif->tif_row = (uint32) -1; |
| 1382 | tif->tif_curstrip = (tstrip_t) -1; |
| 1383 | return (1); |
| 1384 | } |
| 1385 | |
| 1386 | /* [BFC] |
| 1387 | * |
| 1388 | * Author: Bruce Cameron <cameron@petris.com> |
| 1389 | * |
| 1390 | * Set a table of tags that are to be replaced during directory process by the |
| 1391 | * 'IGNORE' state - or return TRUE/FALSE for the requested tag such that |
| 1392 | * 'ReadDirectory' can use the stored information. |
| 1393 | */ |
| 1394 | int |
| 1395 | TIFFReassignTagToIgnore (enum TIFFIgnoreSense task, int TIFFtagID) |
| 1396 | { |
| 1397 | static int TIFFignoretags [FIELD_LAST]; |
| 1398 | static int tagcount = 0 ; |
| 1399 | int i; /* Loop index */ |
| 1400 | int j; /* Loop index */ |
| 1401 | |
| 1402 | switch (task) |
| 1403 | { |
| 1404 | case TIS_STORE: |
| 1405 | if ( tagcount < (FIELD_LAST - 1) ) |
| 1406 | { |
| 1407 | for ( j = 0 ; j < tagcount ; ++j ) |
| 1408 | { /* Do not add duplicate tag */ |
| 1409 | if ( TIFFignoretags [j] == TIFFtagID ) |
| 1410 | return (TRUE) ; |
| 1411 | } |
| 1412 | TIFFignoretags [tagcount++] = TIFFtagID ; |
| 1413 | return (TRUE) ; |
| 1414 | } |
| 1415 | break ; |
| 1416 | |
| 1417 | case TIS_EXTRACT: |
| 1418 | for ( i = 0 ; i < tagcount ; ++i ) |
| 1419 | { |
| 1420 | if ( TIFFignoretags [i] == TIFFtagID ) |
| 1421 | return (TRUE) ; |
| 1422 | } |
| 1423 | break; |
| 1424 | |
| 1425 | case TIS_EMPTY: |
| 1426 | tagcount = 0 ; /* Clear the list */ |
| 1427 | return (TRUE) ; |
| 1428 | |
| 1429 | default: |
| 1430 | break; |
| 1431 | } |
| 1432 | |
| 1433 | return (FALSE); |
| 1434 | } |
| 1435 | |