| 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 Write Support Routines. |
| 31 | */ |
| 32 | #include "tiffiop.h" |
| 33 | |
| 34 | #if HAVE_IEEEFP |
| 35 | #define TIFFCvtNativeToIEEEFloat(tif, n, fp) |
| 36 | #define TIFFCvtNativeToIEEEDouble(tif, n, dp) |
| 37 | #else |
| 38 | extern void TIFFCvtNativeToIEEEFloat(TIFF*, uint32, float*); |
| 39 | extern void TIFFCvtNativeToIEEEDouble(TIFF*, uint32, double*); |
| 40 | #endif |
| 41 | |
| 42 | static int TIFFWriteNormalTag(TIFF*, TIFFDirEntry*, const TIFFFieldInfo*); |
| 43 | static void TIFFSetupShortLong(TIFF*, ttag_t, TIFFDirEntry*, uint32); |
| 44 | static void TIFFSetupShort(TIFF*, ttag_t, TIFFDirEntry*, uint16); |
| 45 | static int TIFFSetupShortPair(TIFF*, ttag_t, TIFFDirEntry*); |
| 46 | static int TIFFWritePerSampleShorts(TIFF*, ttag_t, TIFFDirEntry*); |
| 47 | static int TIFFWritePerSampleAnys(TIFF*, TIFFDataType, ttag_t, TIFFDirEntry*); |
| 48 | static int TIFFWriteShortTable(TIFF*, ttag_t, TIFFDirEntry*, uint32, uint16**); |
| 49 | static int TIFFWriteShortArray(TIFF*, |
| 50 | TIFFDataType, ttag_t, TIFFDirEntry*, uint32, uint16*); |
| 51 | static int TIFFWriteLongArray(TIFF *, |
| 52 | TIFFDataType, ttag_t, TIFFDirEntry*, uint32, uint32*); |
| 53 | static int TIFFWriteRationalArray(TIFF *, |
| 54 | TIFFDataType, ttag_t, TIFFDirEntry*, uint32, float*); |
| 55 | static int TIFFWriteFloatArray(TIFF *, |
| 56 | TIFFDataType, ttag_t, TIFFDirEntry*, uint32, float*); |
| 57 | static int TIFFWriteDoubleArray(TIFF *, |
| 58 | TIFFDataType, ttag_t, TIFFDirEntry*, uint32, double*); |
| 59 | static int TIFFWriteByteArray(TIFF*, TIFFDirEntry*, char*); |
| 60 | static int TIFFWriteAnyArray(TIFF*, |
| 61 | TIFFDataType, ttag_t, TIFFDirEntry*, uint32, double*); |
| 62 | #ifdef COLORIMETRY_SUPPORT |
| 63 | static int TIFFWriteTransferFunction(TIFF*, TIFFDirEntry*); |
| 64 | #endif |
| 65 | #ifdef CMYK_SUPPORT |
| 66 | static int TIFFWriteInkNames(TIFF*, TIFFDirEntry*); |
| 67 | #endif |
| 68 | static int TIFFWriteData(TIFF*, TIFFDirEntry*, char*); |
| 69 | static int TIFFLinkDirectory(TIFF*); |
| 70 | |
| 71 | #define WriteRationalPair(type, tag1, v1, tag2, v2) { \ |
| 72 | if (!TIFFWriteRational(tif, type, tag1, dir, v1)) \ |
| 73 | goto bad; \ |
| 74 | if (!TIFFWriteRational(tif, type, tag2, dir+1, v2)) \ |
| 75 | goto bad; \ |
| 76 | dir++; \ |
| 77 | } |
| 78 | #define TIFFWriteRational(tif, type, tag, dir, v) \ |
| 79 | TIFFWriteRationalArray((tif), (type), (tag), (dir), 1, &(v)) |
| 80 | #ifndef TIFFWriteRational |
| 81 | static int TIFFWriteRational(TIFF*, |
| 82 | TIFFDataType, ttag_t, TIFFDirEntry*, float); |
| 83 | #endif |
| 84 | |
| 85 | /* |
| 86 | * Write the contents of the current directory |
| 87 | * to the specified file. This routine doesn't |
| 88 | * handle overwriting a directory with auxiliary |
| 89 | * storage that's been changed. |
| 90 | */ |
| 91 | static int |
| 92 | _TIFFWriteDirectory(TIFF* tif, int done) |
| 93 | { |
| 94 | uint16 dircount; |
| 95 | toff_t diroff; |
| 96 | ttag_t tag; |
| 97 | uint32 nfields; |
| 98 | tsize_t dirsize; |
| 99 | char* data; |
| 100 | TIFFDirEntry* dir; |
| 101 | TIFFDirectory* td; |
| 102 | u_long b, fields[FIELD_SETLONGS]; |
| 103 | int fi, nfi; |
| 104 | |
| 105 | if (tif->tif_mode == O_RDONLY) |
| 106 | return (1); |
| 107 | /* |
| 108 | * Clear write state so that subsequent images with |
| 109 | * different characteristics get the right buffers |
| 110 | * setup for them. |
| 111 | */ |
| 112 | if (done) |
| 113 | { |
| 114 | if (tif->tif_flags & TIFF_POSTENCODE) { |
| 115 | tif->tif_flags &= ~TIFF_POSTENCODE; |
| 116 | if (!(*tif->tif_postencode)(tif)) { |
| 117 | TIFFError(tif->tif_name, |
| 118 | "Error post-encoding before directory write"); |
| 119 | return (0); |
| 120 | } |
| 121 | } |
| 122 | (*tif->tif_close)(tif); /* shutdown encoder */ |
| 123 | /* |
| 124 | * Flush any data that might have been written |
| 125 | * by the compression close+cleanup routines. |
| 126 | */ |
| 127 | if (tif->tif_rawcc > 0 && !TIFFFlushData1(tif)) { |
| 128 | TIFFError(tif->tif_name, |
| 129 | "Error flushing data before directory write"); |
| 130 | return (0); |
| 131 | } |
| 132 | if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { |
| 133 | _TIFFfree(tif->tif_rawdata); |
| 134 | tif->tif_rawdata = NULL; |
| 135 | tif->tif_rawcc = 0; |
| 136 | tif->tif_rawdatasize = 0; |
| 137 | } |
| 138 | tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP); |
| 139 | } |
| 140 | |
| 141 | td = &tif->tif_dir; |
| 142 | /* |
| 143 | * Size the directory so that we can calculate |
| 144 | * offsets for the data items that aren't kept |
| 145 | * in-place in each field. |
| 146 | */ |
| 147 | nfields = 0; |
| 148 | for (b = 0; b <= FIELD_LAST; b++) |
| 149 | if (TIFFFieldSet(tif, b) && b != FIELD_CUSTOM) |
| 150 | nfields += (b < FIELD_SUBFILETYPE ? 2 : 1); |
| 151 | nfields += td->td_customValueCount; |
| 152 | dirsize = nfields * sizeof (TIFFDirEntry); |
| 153 | data = (char*) _TIFFmalloc(dirsize); |
| 154 | if (data == NULL) { |
| 155 | TIFFError(tif->tif_name, |
| 156 | "Cannot write directory, out of space"); |
| 157 | return (0); |
| 158 | } |
| 159 | /* |
| 160 | * Directory hasn't been placed yet, put |
| 161 | * it at the end of the file and link it |
| 162 | * into the existing directory structure. |
| 163 | */ |
| 164 | if (tif->tif_diroff == 0 && !TIFFLinkDirectory(tif)) |
| 165 | goto bad; |
| 166 | tif->tif_dataoff = (toff_t)( |
| 167 | tif->tif_diroff + sizeof (uint16) + dirsize + sizeof (toff_t)); |
| 168 | if (tif->tif_dataoff & 1) |
| 169 | tif->tif_dataoff++; |
| 170 | (void) TIFFSeekFile(tif, tif->tif_dataoff, SEEK_SET); |
| 171 | tif->tif_curdir++; |
| 172 | dir = (TIFFDirEntry*) data; |
| 173 | /* |
| 174 | * Setup external form of directory |
| 175 | * entries and write data items. |
| 176 | */ |
| 177 | _TIFFmemcpy(fields, td->td_fieldsset, sizeof (fields)); |
| 178 | /* |
| 179 | * Write out ExtraSamples tag only if |
| 180 | * extra samples are present in the data. |
| 181 | */ |
| 182 | if (FieldSet(fields, FIELD_EXTRASAMPLES) && !td->td_extrasamples) { |
| 183 | ResetFieldBit(fields, FIELD_EXTRASAMPLES); |
| 184 | nfields--; |
| 185 | dirsize -= sizeof (TIFFDirEntry); |
| 186 | } /*XXX*/ |
| 187 | for (fi = 0, nfi = tif->tif_nfields; nfi > 0; nfi--, fi++) { |
| 188 | const TIFFFieldInfo* fip = tif->tif_fieldinfo[fi]; |
| 189 | |
| 190 | /* |
| 191 | ** For custom fields, we test to see if the custom field |
| 192 | ** is set or not. For normal fields, we just use the |
| 193 | ** FieldSet test. |
| 194 | */ |
| 195 | if( fip->field_bit == FIELD_CUSTOM ) |
| 196 | { |
| 197 | int ci, is_set = FALSE; |
| 198 | |
| 199 | for( ci = 0; ci < td->td_customValueCount; ci++ ) |
| 200 | is_set |= (td->td_customValues[ci].info == fip); |
| 201 | |
| 202 | if( !is_set ) |
| 203 | continue; |
| 204 | } |
| 205 | else if (!FieldSet(fields, fip->field_bit)) |
| 206 | continue; |
| 207 | |
| 208 | |
| 209 | /* |
| 210 | ** Handle other fields. |
| 211 | */ |
| 212 | switch (fip->field_bit) |
| 213 | { |
| 214 | case FIELD_STRIPOFFSETS: |
| 215 | /* |
| 216 | * We use one field bit for both strip and tile |
| 217 | |
| 218 | * offsets, and so must be careful in selecting |
| 219 | * the appropriate field descriptor (so that tags |
| 220 | * are written in sorted order). |
| 221 | */ |
| 222 | tag = isTiled(tif) ? |
| 223 | TIFFTAG_TILEOFFSETS : TIFFTAG_STRIPOFFSETS; |
| 224 | if (tag != fip->field_tag) |
| 225 | continue; |
| 226 | if (!TIFFWriteLongArray(tif, TIFF_LONG, tag, dir, |
| 227 | (uint32) td->td_nstrips, td->td_stripoffset)) |
| 228 | goto bad; |
| 229 | break; |
| 230 | case FIELD_STRIPBYTECOUNTS: |
| 231 | /* |
| 232 | * We use one field bit for both strip and tile |
| 233 | * byte counts, and so must be careful in selecting |
| 234 | * the appropriate field descriptor (so that tags |
| 235 | * are written in sorted order). |
| 236 | */ |
| 237 | tag = isTiled(tif) ? |
| 238 | TIFFTAG_TILEBYTECOUNTS : TIFFTAG_STRIPBYTECOUNTS; |
| 239 | if (tag != fip->field_tag) |
| 240 | continue; |
| 241 | if (!TIFFWriteLongArray(tif, TIFF_LONG, tag, dir, |
| 242 | (uint32) td->td_nstrips, td->td_stripbytecount)) |
| 243 | goto bad; |
| 244 | break; |
| 245 | case FIELD_ROWSPERSTRIP: |
| 246 | TIFFSetupShortLong(tif, TIFFTAG_ROWSPERSTRIP, |
| 247 | dir, td->td_rowsperstrip); |
| 248 | break; |
| 249 | case FIELD_COLORMAP: |
| 250 | if (!TIFFWriteShortTable(tif, TIFFTAG_COLORMAP, dir, |
| 251 | 3, td->td_colormap)) |
| 252 | goto bad; |
| 253 | break; |
| 254 | case FIELD_IMAGEDIMENSIONS: |
| 255 | TIFFSetupShortLong(tif, TIFFTAG_IMAGEWIDTH, |
| 256 | dir++, td->td_imagewidth); |
| 257 | TIFFSetupShortLong(tif, TIFFTAG_IMAGELENGTH, |
| 258 | dir, td->td_imagelength); |
| 259 | break; |
| 260 | case FIELD_TILEDIMENSIONS: |
| 261 | TIFFSetupShortLong(tif, TIFFTAG_TILEWIDTH, |
| 262 | dir++, td->td_tilewidth); |
| 263 | TIFFSetupShortLong(tif, TIFFTAG_TILELENGTH, |
| 264 | dir, td->td_tilelength); |
| 265 | break; |
| 266 | case FIELD_COMPRESSION: |
| 267 | TIFFSetupShort(tif, TIFFTAG_COMPRESSION, |
| 268 | dir, td->td_compression); |
| 269 | break; |
| 270 | case FIELD_PHOTOMETRIC: |
| 271 | TIFFSetupShort(tif, TIFFTAG_PHOTOMETRIC, |
| 272 | dir, td->td_photometric); |
| 273 | break; |
| 274 | case FIELD_POSITION: |
| 275 | WriteRationalPair(TIFF_RATIONAL, |
| 276 | TIFFTAG_XPOSITION, td->td_xposition, |
| 277 | TIFFTAG_YPOSITION, td->td_yposition); |
| 278 | break; |
| 279 | case FIELD_RESOLUTION: |
| 280 | WriteRationalPair(TIFF_RATIONAL, |
| 281 | TIFFTAG_XRESOLUTION, td->td_xresolution, |
| 282 | TIFFTAG_YRESOLUTION, td->td_yresolution); |
| 283 | break; |
| 284 | case FIELD_BITSPERSAMPLE: |
| 285 | case FIELD_MINSAMPLEVALUE: |
| 286 | case FIELD_MAXSAMPLEVALUE: |
| 287 | case FIELD_SAMPLEFORMAT: |
| 288 | if (!TIFFWritePerSampleShorts(tif, fip->field_tag, dir)) |
| 289 | goto bad; |
| 290 | break; |
| 291 | case FIELD_SMINSAMPLEVALUE: |
| 292 | case FIELD_SMAXSAMPLEVALUE: |
| 293 | if (!TIFFWritePerSampleAnys(tif, |
| 294 | _TIFFSampleToTagType(tif), fip->field_tag, dir)) |
| 295 | goto bad; |
| 296 | break; |
| 297 | case FIELD_PAGENUMBER: |
| 298 | case FIELD_HALFTONEHINTS: |
| 299 | #ifdef YCBCR_SUPPORT |
| 300 | case FIELD_YCBCRSUBSAMPLING: |
| 301 | #endif |
| 302 | #ifdef CMYK_SUPPORT |
| 303 | case FIELD_DOTRANGE: |
| 304 | #endif |
| 305 | if (!TIFFSetupShortPair(tif, fip->field_tag, dir)) |
| 306 | goto bad; |
| 307 | break; |
| 308 | #ifdef CMYK_SUPPORT |
| 309 | case FIELD_INKNAMES: |
| 310 | if (!TIFFWriteInkNames(tif, dir)) |
| 311 | goto bad; |
| 312 | break; |
| 313 | #endif |
| 314 | #ifdef COLORIMETRY_SUPPORT |
| 315 | case FIELD_TRANSFERFUNCTION: |
| 316 | if (!TIFFWriteTransferFunction(tif, dir)) |
| 317 | goto bad; |
| 318 | break; |
| 319 | #endif |
| 320 | #if SUBIFD_SUPPORT |
| 321 | case FIELD_SUBIFD: |
| 322 | if (!TIFFWriteNormalTag(tif, dir, fip)) |
| 323 | goto bad; |
| 324 | /* |
| 325 | * Total hack: if this directory includes a SubIFD |
| 326 | * tag then force the next <n> directories to be |
| 327 | * written as ``sub directories'' of this one. This |
| 328 | * is used to write things like thumbnails and |
| 329 | * image masks that one wants to keep out of the |
| 330 | * normal directory linkage access mechanism. |
| 331 | */ |
| 332 | if (dir->tdir_count > 0) { |
| 333 | tif->tif_flags |= TIFF_INSUBIFD; |
| 334 | tif->tif_nsubifd = (uint16) dir->tdir_count; |
| 335 | if (dir->tdir_count > 1) |
| 336 | tif->tif_subifdoff = dir->tdir_offset; |
| 337 | else |
| 338 | tif->tif_subifdoff = (uint32)( |
| 339 | tif->tif_diroff |
| 340 | + sizeof (uint16) |
| 341 | + ((char*)&dir->tdir_offset-data)); |
| 342 | } |
| 343 | break; |
| 344 | #endif |
| 345 | default: |
| 346 | if (!TIFFWriteNormalTag(tif, dir, fip)) |
| 347 | goto bad; |
| 348 | break; |
| 349 | } |
| 350 | dir++; |
| 351 | |
| 352 | if( fip->field_bit != FIELD_CUSTOM ) |
| 353 | ResetFieldBit(fields, fip->field_bit); |
| 354 | } |
| 355 | |
| 356 | /* |
| 357 | * Write directory. |
| 358 | */ |
| 359 | dircount = (uint16) nfields; |
| 360 | diroff = (uint32) tif->tif_nextdiroff; |
| 361 | if (tif->tif_flags & TIFF_SWAB) { |
| 362 | /* |
| 363 | * The file's byte order is opposite to the |
| 364 | * native machine architecture. We overwrite |
| 365 | * the directory information with impunity |
| 366 | * because it'll be released below after we |
| 367 | * write it to the file. Note that all the |
| 368 | * other tag construction routines assume that |
| 369 | * we do this byte-swapping; i.e. they only |
| 370 | * byte-swap indirect data. |
| 371 | */ |
| 372 | for (dir = (TIFFDirEntry*) data; dircount; dir++, dircount--) { |
| 373 | TIFFSwabArrayOfShort(&dir->tdir_tag, 2); |
| 374 | TIFFSwabArrayOfLong(&dir->tdir_count, 2); |
| 375 | } |
| 376 | dircount = (uint16) nfields; |
| 377 | TIFFSwabShort(&dircount); |
| 378 | TIFFSwabLong(&diroff); |
| 379 | } |
| 380 | (void) TIFFSeekFile(tif, tif->tif_diroff, SEEK_SET); |
| 381 | if (!WriteOK(tif, &dircount, sizeof (dircount))) { |
| 382 | TIFFError(tif->tif_name, "Error writing directory count"); |
| 383 | goto bad; |
| 384 | } |
| 385 | if (!WriteOK(tif, data, dirsize)) { |
| 386 | TIFFError(tif->tif_name, "Error writing directory contents"); |
| 387 | goto bad; |
| 388 | } |
| 389 | if (!WriteOK(tif, &diroff, sizeof (diroff))) { |
| 390 | TIFFError(tif->tif_name, "Error writing directory link"); |
| 391 | goto bad; |
| 392 | } |
| 393 | if (done) { |
| 394 | TIFFFreeDirectory(tif); |
| 395 | tif->tif_flags &= ~TIFF_DIRTYDIRECT; |
| 396 | (*tif->tif_cleanup)(tif); |
| 397 | |
| 398 | /* |
| 399 | * Reset directory-related state for subsequent |
| 400 | * directories. |
| 401 | */ |
| 402 | TIFFCreateDirectory(tif); |
| 403 | } |
| 404 | _TIFFfree(data); |
| 405 | return (1); |
| 406 | bad: |
| 407 | _TIFFfree(data); |
| 408 | return (0); |
| 409 | } |
| 410 | #undef WriteRationalPair |
| 411 | |
| 412 | int |
| 413 | TIFFWriteDirectory(TIFF* tif) |
| 414 | { |
| 415 | return _TIFFWriteDirectory(tif, TRUE); |
| 416 | } |
| 417 | |
| 418 | /* |
| 419 | * Similar to TIFFWriteDirectory(), writes the directory out |
| 420 | * but leaves all data structures in memory so that it can be |
| 421 | * written again. This will make a partially written TIFF file |
| 422 | * readable before it is successfully completed/closed. |
| 423 | */ |
| 424 | int |
| 425 | TIFFCheckpointDirectory(TIFF* tif) |
| 426 | { |
| 427 | int rc; |
| 428 | /* Setup the strips arrays, if they haven't already been. */ |
| 429 | if (tif->tif_dir.td_stripoffset == NULL) |
| 430 | (void) TIFFSetupStrips(tif); |
| 431 | rc = _TIFFWriteDirectory(tif, FALSE); |
| 432 | (void) TIFFSetWriteOffset(tif, TIFFSeekFile(tif, 0, SEEK_END)); |
| 433 | return rc; |
| 434 | } |
| 435 | |
| 436 | /* |
| 437 | * Process tags that are not special cased. |
| 438 | */ |
| 439 | static int |
| 440 | TIFFWriteNormalTag(TIFF* tif, TIFFDirEntry* dir, const TIFFFieldInfo* fip) |
| 441 | { |
| 442 | u_short wc = (u_short) fip->field_writecount; |
| 443 | uint32 wc2; |
| 444 | |
| 445 | dir->tdir_tag = (uint16) fip->field_tag; |
| 446 | dir->tdir_type = (u_short) fip->field_type; |
| 447 | dir->tdir_count = wc; |
| 448 | #define WRITEF(x,y) x(tif, fip->field_type, fip->field_tag, dir, wc, y) |
| 449 | switch (fip->field_type) { |
| 450 | case TIFF_SHORT: |
| 451 | case TIFF_SSHORT: |
| 452 | if (wc > 1) { |
| 453 | uint16* wp; |
| 454 | if (wc == (u_short) TIFF_VARIABLE |
| 455 | || fip->field_passcount) |
| 456 | TIFFGetField(tif, fip->field_tag, &wc, &wp); |
| 457 | else |
| 458 | TIFFGetField(tif, fip->field_tag, &wp); |
| 459 | if (!WRITEF(TIFFWriteShortArray, wp)) |
| 460 | return (0); |
| 461 | } else { |
| 462 | if (fip->field_passcount) { |
| 463 | uint16* wp; |
| 464 | TIFFGetField(tif, fip->field_tag, &wc, &wp); |
| 465 | if (!WRITEF(TIFFWriteShortArray, wp)) |
| 466 | return 0; |
| 467 | } else { |
| 468 | uint16 sv; |
| 469 | TIFFGetField(tif, fip->field_tag, &sv); |
| 470 | dir->tdir_offset = |
| 471 | TIFFInsertData(tif, dir->tdir_type, sv); |
| 472 | } |
| 473 | } |
| 474 | break; |
| 475 | case TIFF_LONG: |
| 476 | case TIFF_SLONG: |
| 477 | case TIFF_IFD: |
| 478 | if (wc > 1) { |
| 479 | uint32* lp; |
| 480 | if (wc == (u_short) TIFF_VARIABLE |
| 481 | || fip->field_passcount) |
| 482 | TIFFGetField(tif, fip->field_tag, &wc, &lp); |
| 483 | else |
| 484 | TIFFGetField(tif, fip->field_tag, &lp); |
| 485 | if (!WRITEF(TIFFWriteLongArray, lp)) |
| 486 | return (0); |
| 487 | } else { |
| 488 | if (fip->field_passcount) { |
| 489 | uint32* lp; |
| 490 | TIFFGetField(tif, fip->field_tag, &wc, &lp); |
| 491 | if (!WRITEF(TIFFWriteLongArray, lp)) |
| 492 | return 0; |
| 493 | } else { |
| 494 | /* XXX handle LONG->SHORT conversion */ |
| 495 | TIFFGetField(tif, fip->field_tag, |
| 496 | &dir->tdir_offset); |
| 497 | } |
| 498 | } |
| 499 | break; |
| 500 | case TIFF_RATIONAL: |
| 501 | case TIFF_SRATIONAL: |
| 502 | if (wc > 1) { |
| 503 | float* fp; |
| 504 | if (wc == (u_short) TIFF_VARIABLE |
| 505 | || fip->field_passcount) |
| 506 | TIFFGetField(tif, fip->field_tag, &wc, &fp); |
| 507 | else |
| 508 | TIFFGetField(tif, fip->field_tag, &fp); |
| 509 | if (!WRITEF(TIFFWriteRationalArray, fp)) |
| 510 | return (0); |
| 511 | } else { |
| 512 | if (fip->field_passcount) { |
| 513 | float* fp; |
| 514 | TIFFGetField(tif, fip->field_tag, &wc, &fp); |
| 515 | if (!WRITEF(TIFFWriteRationalArray, fp)) |
| 516 | return 0; |
| 517 | } else { |
| 518 | float fv; |
| 519 | TIFFGetField(tif, fip->field_tag, &fv); |
| 520 | if (!WRITEF(TIFFWriteRationalArray, &fv)) |
| 521 | return (0); |
| 522 | } |
| 523 | } |
| 524 | break; |
| 525 | case TIFF_FLOAT: |
| 526 | if (wc > 1) { |
| 527 | float* fp; |
| 528 | if (wc == (u_short) TIFF_VARIABLE |
| 529 | || fip->field_passcount) |
| 530 | TIFFGetField(tif, fip->field_tag, &wc, &fp); |
| 531 | else |
| 532 | TIFFGetField(tif, fip->field_tag, &fp); |
| 533 | if (!WRITEF(TIFFWriteFloatArray, fp)) |
| 534 | return (0); |
| 535 | } else { |
| 536 | if (fip->field_passcount) { |
| 537 | float* fp; |
| 538 | TIFFGetField(tif, fip->field_tag, &wc, &fp); |
| 539 | if (!WRITEF(TIFFWriteFloatArray, fp)) |
| 540 | return 0; |
| 541 | } else { |
| 542 | float fv; |
| 543 | TIFFGetField(tif, fip->field_tag, &fv); |
| 544 | if (!WRITEF(TIFFWriteFloatArray, &fv)) |
| 545 | return (0); |
| 546 | } |
| 547 | } |
| 548 | break; |
| 549 | case TIFF_DOUBLE: |
| 550 | if (wc > 1) { |
| 551 | double* dp; |
| 552 | if (wc == (u_short) TIFF_VARIABLE |
| 553 | || fip->field_passcount) |
| 554 | TIFFGetField(tif, fip->field_tag, &wc, &dp); |
| 555 | else |
| 556 | TIFFGetField(tif, fip->field_tag, &dp); |
| 557 | if (!WRITEF(TIFFWriteDoubleArray, dp)) |
| 558 | return (0); |
| 559 | } else { |
| 560 | if (fip->field_passcount) { |
| 561 | double* dp; |
| 562 | TIFFGetField(tif, fip->field_tag, &wc, &dp); |
| 563 | if (!WRITEF(TIFFWriteDoubleArray, dp)) |
| 564 | return 0; |
| 565 | } else { |
| 566 | double dv; |
| 567 | TIFFGetField(tif, fip->field_tag, &dv); |
| 568 | if (!WRITEF(TIFFWriteDoubleArray, &dv)) |
| 569 | return (0); |
| 570 | } |
| 571 | } |
| 572 | break; |
| 573 | case TIFF_ASCII: |
| 574 | { char* cp; |
| 575 | TIFFGetField(tif, fip->field_tag, &cp); |
| 576 | dir->tdir_count = (uint32) (strlen(cp) + 1); |
| 577 | if (!TIFFWriteByteArray(tif, dir, cp)) |
| 578 | return (0); |
| 579 | } |
| 580 | break; |
| 581 | |
| 582 | /* added based on patch request from MARTIN.MCBRIDE.MM@agfa.co.uk, |
| 583 | correctness not verified (FW, 99/08) */ |
| 584 | case TIFF_BYTE: |
| 585 | case TIFF_SBYTE: |
| 586 | if (wc > 1) { |
| 587 | char* cp; |
| 588 | if (wc == (u_short) TIFF_VARIABLE |
| 589 | || fip->field_passcount) { |
| 590 | TIFFGetField(tif, fip->field_tag, &wc, &cp); |
| 591 | dir->tdir_count = wc; |
| 592 | } else if (wc == (u_short) TIFF_VARIABLE2) { |
| 593 | TIFFGetField(tif, fip->field_tag, &wc2, &cp); |
| 594 | dir->tdir_count = wc2; |
| 595 | } else |
| 596 | TIFFGetField(tif, fip->field_tag, &cp); |
| 597 | if (!TIFFWriteByteArray(tif, dir, cp)) |
| 598 | return (0); |
| 599 | } else { |
| 600 | if (fip->field_passcount) { |
| 601 | char* cp; |
| 602 | TIFFGetField(tif, fip->field_tag, &wc, &cp); |
| 603 | dir->tdir_count = wc; |
| 604 | if (!TIFFWriteByteArray(tif, dir, cp)) |
| 605 | return 0; |
| 606 | } else { |
| 607 | char cv; |
| 608 | TIFFGetField(tif, fip->field_tag, &cv); |
| 609 | if (!TIFFWriteByteArray(tif, dir, &cv)) |
| 610 | return (0); |
| 611 | } |
| 612 | } |
| 613 | break; |
| 614 | |
| 615 | case TIFF_UNDEFINED: |
| 616 | { char* cp; |
| 617 | if (wc == (u_short) TIFF_VARIABLE) { |
| 618 | TIFFGetField(tif, fip->field_tag, &wc, &cp); |
| 619 | dir->tdir_count = wc; |
| 620 | } else if (wc == (u_short) TIFF_VARIABLE2) { |
| 621 | TIFFGetField(tif, fip->field_tag, &wc2, &cp); |
| 622 | dir->tdir_count = wc2; |
| 623 | } else |
| 624 | TIFFGetField(tif, fip->field_tag, &cp); |
| 625 | if (!TIFFWriteByteArray(tif, dir, cp)) |
| 626 | return (0); |
| 627 | } |
| 628 | break; |
| 629 | |
| 630 | case TIFF_NOTYPE: |
| 631 | break; |
| 632 | } |
| 633 | return (1); |
| 634 | } |
| 635 | #undef WRITEF |
| 636 | |
| 637 | /* |
| 638 | * Setup a directory entry with either a SHORT |
| 639 | * or LONG type according to the value. |
| 640 | */ |
| 641 | static void |
| 642 | TIFFSetupShortLong(TIFF* tif, ttag_t tag, TIFFDirEntry* dir, uint32 v) |
| 643 | { |
| 644 | dir->tdir_tag = (uint16) tag; |
| 645 | dir->tdir_count = 1; |
| 646 | if (v > 0xffffL) { |
| 647 | dir->tdir_type = (short) TIFF_LONG; |
| 648 | dir->tdir_offset = v; |
| 649 | } else { |
| 650 | dir->tdir_type = (short) TIFF_SHORT; |
| 651 | dir->tdir_offset = TIFFInsertData(tif, (int) TIFF_SHORT, v); |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | /* |
| 656 | * Setup a SHORT directory entry |
| 657 | */ |
| 658 | static void |
| 659 | TIFFSetupShort(TIFF* tif, ttag_t tag, TIFFDirEntry* dir, uint16 v) |
| 660 | { |
| 661 | dir->tdir_tag = (uint16) tag; |
| 662 | dir->tdir_count = 1; |
| 663 | dir->tdir_type = (short) TIFF_SHORT; |
| 664 | dir->tdir_offset = TIFFInsertData(tif, (int) TIFF_SHORT, v); |
| 665 | } |
| 666 | #undef MakeShortDirent |
| 667 | |
| 668 | #ifndef TIFFWriteRational |
| 669 | /* |
| 670 | * Setup a RATIONAL directory entry and |
| 671 | * write the associated indirect value. |
| 672 | */ |
| 673 | static int |
| 674 | TIFFWriteRational(TIFF* tif, |
| 675 | TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, float v) |
| 676 | { |
| 677 | return (TIFFWriteRationalArray(tif, type, tag, dir, 1, &v)); |
| 678 | } |
| 679 | #endif |
| 680 | |
| 681 | #define NITEMS(x) (sizeof (x) / sizeof (x[0])) |
| 682 | /* |
| 683 | * Setup a directory entry that references a |
| 684 | * samples/pixel array of SHORT values and |
| 685 | * (potentially) write the associated indirect |
| 686 | * values. |
| 687 | */ |
| 688 | static int |
| 689 | TIFFWritePerSampleShorts(TIFF* tif, ttag_t tag, TIFFDirEntry* dir) |
| 690 | { |
| 691 | uint16 buf[10], v; |
| 692 | uint16* w = buf; |
| 693 | int i, status, samples = tif->tif_dir.td_samplesperpixel; |
| 694 | |
| 695 | if (samples > NITEMS(buf)) { |
| 696 | w = (uint16*) _TIFFmalloc(samples * sizeof (uint16)); |
| 697 | if (w == NULL) { |
| 698 | TIFFError(tif->tif_name, |
| 699 | "No space to write per-sample shorts"); |
| 700 | return (0); |
| 701 | } |
| 702 | } |
| 703 | TIFFGetField(tif, tag, &v); |
| 704 | for (i = 0; i < samples; i++) |
| 705 | w[i] = v; |
| 706 | status = TIFFWriteShortArray(tif, TIFF_SHORT, tag, dir, samples, w); |
| 707 | if (w != buf) |
| 708 | _TIFFfree((char*) w); |
| 709 | return (status); |
| 710 | } |
| 711 | |
| 712 | /* |
| 713 | * Setup a directory entry that references a samples/pixel array of ``type'' |
| 714 | * values and (potentially) write the associated indirect values. The source |
| 715 | * data from TIFFGetField() for the specified tag must be returned as double. |
| 716 | */ |
| 717 | static int |
| 718 | TIFFWritePerSampleAnys(TIFF* tif, |
| 719 | TIFFDataType type, ttag_t tag, TIFFDirEntry* dir) |
| 720 | { |
| 721 | double buf[10], v; |
| 722 | double* w = buf; |
| 723 | int i, status; |
| 724 | int samples = (int) tif->tif_dir.td_samplesperpixel; |
| 725 | |
| 726 | if (samples > NITEMS(buf)) { |
| 727 | w = (double*) _TIFFmalloc(samples * sizeof (double)); |
| 728 | if (w == NULL) { |
| 729 | TIFFError(tif->tif_name, |
| 730 | "No space to write per-sample values"); |
| 731 | return (0); |
| 732 | } |
| 733 | } |
| 734 | TIFFGetField(tif, tag, &v); |
| 735 | for (i = 0; i < samples; i++) |
| 736 | w[i] = v; |
| 737 | status = TIFFWriteAnyArray(tif, type, tag, dir, samples, w); |
| 738 | if (w != buf) |
| 739 | _TIFFfree(w); |
| 740 | return (status); |
| 741 | } |
| 742 | #undef NITEMS |
| 743 | |
| 744 | /* |
| 745 | * Setup a pair of shorts that are returned by |
| 746 | * value, rather than as a reference to an array. |
| 747 | */ |
| 748 | static int |
| 749 | TIFFSetupShortPair(TIFF* tif, ttag_t tag, TIFFDirEntry* dir) |
| 750 | { |
| 751 | uint16 v[2]; |
| 752 | |
| 753 | TIFFGetField(tif, tag, &v[0], &v[1]); |
| 754 | return (TIFFWriteShortArray(tif, TIFF_SHORT, tag, dir, 2, v)); |
| 755 | } |
| 756 | |
| 757 | /* |
| 758 | * Setup a directory entry for an NxM table of shorts, |
| 759 | * where M is known to be 2**bitspersample, and write |
| 760 | * the associated indirect data. |
| 761 | */ |
| 762 | static int |
| 763 | TIFFWriteShortTable(TIFF* tif, |
| 764 | ttag_t tag, TIFFDirEntry* dir, uint32 n, uint16** table) |
| 765 | { |
| 766 | uint32 i, off; |
| 767 | |
| 768 | dir->tdir_tag = (uint16) tag; |
| 769 | dir->tdir_type = (short) TIFF_SHORT; |
| 770 | /* XXX -- yech, fool TIFFWriteData */ |
| 771 | dir->tdir_count = (uint32) (1L<<tif->tif_dir.td_bitspersample); |
| 772 | off = tif->tif_dataoff; |
| 773 | for (i = 0; i < n; i++) |
| 774 | if (!TIFFWriteData(tif, dir, (char *)table[i])) |
| 775 | return (0); |
| 776 | dir->tdir_count *= n; |
| 777 | dir->tdir_offset = off; |
| 778 | return (1); |
| 779 | } |
| 780 | |
| 781 | /* |
| 782 | * Write/copy data associated with an ASCII or opaque tag value. |
| 783 | */ |
| 784 | static int |
| 785 | TIFFWriteByteArray(TIFF* tif, TIFFDirEntry* dir, char* cp) |
| 786 | { |
| 787 | if (dir->tdir_count > 4) { |
| 788 | if (!TIFFWriteData(tif, dir, cp)) |
| 789 | return (0); |
| 790 | } else |
| 791 | _TIFFmemcpy(&dir->tdir_offset, cp, dir->tdir_count); |
| 792 | return (1); |
| 793 | } |
| 794 | |
| 795 | /* |
| 796 | * Setup a directory entry of an array of SHORT |
| 797 | * or SSHORT and write the associated indirect values. |
| 798 | */ |
| 799 | static int |
| 800 | TIFFWriteShortArray(TIFF* tif, |
| 801 | TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, uint16* v) |
| 802 | { |
| 803 | dir->tdir_tag = (uint16) tag; |
| 804 | dir->tdir_type = (short) type; |
| 805 | dir->tdir_count = n; |
| 806 | if (n <= 2) { |
| 807 | if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { |
| 808 | dir->tdir_offset = (uint32) ((long) v[0] << 16); |
| 809 | if (n == 2) |
| 810 | dir->tdir_offset |= v[1] & 0xffff; |
| 811 | } else { |
| 812 | dir->tdir_offset = v[0] & 0xffff; |
| 813 | if (n == 2) |
| 814 | dir->tdir_offset |= (long) v[1] << 16; |
| 815 | } |
| 816 | return (1); |
| 817 | } else |
| 818 | return (TIFFWriteData(tif, dir, (char*) v)); |
| 819 | } |
| 820 | |
| 821 | /* |
| 822 | * Setup a directory entry of an array of LONG |
| 823 | * or SLONG and write the associated indirect values. |
| 824 | */ |
| 825 | static int |
| 826 | TIFFWriteLongArray(TIFF* tif, |
| 827 | TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, uint32* v) |
| 828 | { |
| 829 | dir->tdir_tag = (uint16) tag; |
| 830 | dir->tdir_type = (short) type; |
| 831 | dir->tdir_count = n; |
| 832 | if (n == 1) { |
| 833 | dir->tdir_offset = v[0]; |
| 834 | return (1); |
| 835 | } else |
| 836 | return (TIFFWriteData(tif, dir, (char*) v)); |
| 837 | } |
| 838 | |
| 839 | /* |
| 840 | * Setup a directory entry of an array of RATIONAL |
| 841 | * or SRATIONAL and write the associated indirect values. |
| 842 | */ |
| 843 | static int |
| 844 | TIFFWriteRationalArray(TIFF* tif, |
| 845 | TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, float* v) |
| 846 | { |
| 847 | uint32 i; |
| 848 | uint32* t; |
| 849 | int status; |
| 850 | |
| 851 | dir->tdir_tag = (uint16) tag; |
| 852 | dir->tdir_type = (short) type; |
| 853 | dir->tdir_count = n; |
| 854 | t = (uint32*) _TIFFmalloc(2*n * sizeof (uint32)); |
| 855 | if (t == NULL) { |
| 856 | TIFFError(tif->tif_name, |
| 857 | "No space to write RATIONAL array"); |
| 858 | return (0); |
| 859 | } |
| 860 | for (i = 0; i < n; i++) { |
| 861 | float fv = v[i]; |
| 862 | int sign = 1; |
| 863 | uint32 den; |
| 864 | |
| 865 | if (fv < 0) { |
| 866 | if (type == TIFF_RATIONAL) { |
| 867 | TIFFWarning(tif->tif_name, |
| 868 | "\"%s\": Information lost writing value (%g) as (unsigned) RATIONAL", |
| 869 | _TIFFFieldWithTag(tif,tag)->field_name, fv); |
| 870 | fv = 0; |
| 871 | } else |
| 872 | fv = -fv, sign = -1; |
| 873 | } |
| 874 | den = 1L; |
| 875 | if (fv > 0) { |
| 876 | while (fv < 1L<<(31-3) && den < 1L<<(31-3)) |
| 877 | fv *= 1<<3, den *= 1L<<3; |
| 878 | } |
| 879 | t[2*i+0] = (uint32) (sign * (fv + 0.5)); |
| 880 | t[2*i+1] = den; |
| 881 | } |
| 882 | status = TIFFWriteData(tif, dir, (char *)t); |
| 883 | _TIFFfree((char*) t); |
| 884 | return (status); |
| 885 | } |
| 886 | |
| 887 | static int |
| 888 | TIFFWriteFloatArray(TIFF* tif, |
| 889 | TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, float* v) |
| 890 | { |
| 891 | dir->tdir_tag = (uint16) tag; |
| 892 | dir->tdir_type = (short) type; |
| 893 | dir->tdir_count = n; |
| 894 | TIFFCvtNativeToIEEEFloat(tif, n, v); |
| 895 | if (n == 1) { |
| 896 | dir->tdir_offset = *(uint32*) &v[0]; |
| 897 | return (1); |
| 898 | } else |
| 899 | return (TIFFWriteData(tif, dir, (char*) v)); |
| 900 | } |
| 901 | |
| 902 | static int |
| 903 | TIFFWriteDoubleArray(TIFF* tif, |
| 904 | TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, double* v) |
| 905 | { |
| 906 | dir->tdir_tag = (uint16) tag; |
| 907 | dir->tdir_type = (short) type; |
| 908 | dir->tdir_count = n; |
| 909 | TIFFCvtNativeToIEEEDouble(tif, n, v); |
| 910 | return (TIFFWriteData(tif, dir, (char*) v)); |
| 911 | } |
| 912 | |
| 913 | /* |
| 914 | * Write an array of ``type'' values for a specified tag (i.e. this is a tag |
| 915 | * which is allowed to have different types, e.g. SMaxSampleType). |
| 916 | * Internally the data values are represented as double since a double can |
| 917 | * hold any of the TIFF tag types (yes, this should really be an abstract |
| 918 | * type tany_t for portability). The data is converted into the specified |
| 919 | * type in a temporary buffer and then handed off to the appropriate array |
| 920 | * writer. |
| 921 | */ |
| 922 | static int |
| 923 | TIFFWriteAnyArray(TIFF* tif, |
| 924 | TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, double* v) |
| 925 | { |
| 926 | char buf[10 * sizeof(double)]; |
| 927 | char* w = buf; |
| 928 | int i, status = 0; |
| 929 | |
| 930 | if (n * TIFFDataWidth(type) > sizeof buf) { |
| 931 | w = (char*) _TIFFmalloc(n * TIFFDataWidth(type)); |
| 932 | if (w == NULL) { |
| 933 | TIFFError(tif->tif_name, |
| 934 | "No space to write array"); |
| 935 | return (0); |
| 936 | } |
| 937 | } |
| 938 | switch (type) { |
| 939 | case TIFF_BYTE: |
| 940 | { uint8* bp = (uint8*) w; |
| 941 | for (i = 0; i < (int) n; i++) |
| 942 | bp[i] = (uint8) v[i]; |
| 943 | dir->tdir_tag = (uint16) tag; |
| 944 | dir->tdir_type = (short) type; |
| 945 | dir->tdir_count = n; |
| 946 | if (!TIFFWriteByteArray(tif, dir, (char*) bp)) |
| 947 | goto out; |
| 948 | } |
| 949 | break; |
| 950 | case TIFF_SBYTE: |
| 951 | { int8* bp = (int8*) w; |
| 952 | for (i = 0; i < (int) n; i++) |
| 953 | bp[i] = (int8) v[i]; |
| 954 | dir->tdir_tag = (uint16) tag; |
| 955 | dir->tdir_type = (short) type; |
| 956 | dir->tdir_count = n; |
| 957 | if (!TIFFWriteByteArray(tif, dir, (char*) bp)) |
| 958 | goto out; |
| 959 | } |
| 960 | break; |
| 961 | case TIFF_SHORT: |
| 962 | { uint16* bp = (uint16*) w; |
| 963 | for (i = 0; i < (int) n; i++) |
| 964 | bp[i] = (uint16) v[i]; |
| 965 | if (!TIFFWriteShortArray(tif, type, tag, dir, n, (uint16*)bp)) |
| 966 | goto out; |
| 967 | } |
| 968 | break; |
| 969 | case TIFF_SSHORT: |
| 970 | { int16* bp = (int16*) w; |
| 971 | for (i = 0; i < (int) n; i++) |
| 972 | bp[i] = (int16) v[i]; |
| 973 | if (!TIFFWriteShortArray(tif, type, tag, dir, n, (uint16*)bp)) |
| 974 | goto out; |
| 975 | } |
| 976 | break; |
| 977 | case TIFF_LONG: |
| 978 | { uint32* bp = (uint32*) w; |
| 979 | for (i = 0; i < (int) n; i++) |
| 980 | bp[i] = (uint32) v[i]; |
| 981 | if (!TIFFWriteLongArray(tif, type, tag, dir, n, bp)) |
| 982 | goto out; |
| 983 | } |
| 984 | break; |
| 985 | case TIFF_SLONG: |
| 986 | { int32* bp = (int32*) w; |
| 987 | for (i = 0; i < (int) n; i++) |
| 988 | bp[i] = (int32) v[i]; |
| 989 | if (!TIFFWriteLongArray(tif, type, tag, dir, n, (uint32*) bp)) |
| 990 | goto out; |
| 991 | } |
| 992 | break; |
| 993 | case TIFF_FLOAT: |
| 994 | { float* bp = (float*) w; |
| 995 | for (i = 0; i < (int) n; i++) |
| 996 | bp[i] = (float) v[i]; |
| 997 | if (!TIFFWriteFloatArray(tif, type, tag, dir, n, bp)) |
| 998 | goto out; |
| 999 | } |
| 1000 | break; |
| 1001 | case TIFF_DOUBLE: |
| 1002 | return (TIFFWriteDoubleArray(tif, type, tag, dir, n, v)); |
| 1003 | default: |
| 1004 | /* TIFF_NOTYPE */ |
| 1005 | /* TIFF_ASCII */ |
| 1006 | /* TIFF_UNDEFINED */ |
| 1007 | /* TIFF_RATIONAL */ |
| 1008 | /* TIFF_SRATIONAL */ |
| 1009 | goto out; |
| 1010 | } |
| 1011 | status = 1; |
| 1012 | out: |
| 1013 | if (w != buf) |
| 1014 | _TIFFfree(w); |
| 1015 | return (status); |
| 1016 | } |
| 1017 | |
| 1018 | #ifdef COLORIMETRY_SUPPORT |
| 1019 | static int |
| 1020 | TIFFWriteTransferFunction(TIFF* tif, TIFFDirEntry* dir) |
| 1021 | { |
| 1022 | TIFFDirectory* td = &tif->tif_dir; |
| 1023 | tsize_t n = (1L<<td->td_bitspersample) * sizeof (uint16); |
| 1024 | uint16** tf = td->td_transferfunction; |
| 1025 | int ncols; |
| 1026 | |
| 1027 | /* |
| 1028 | * Check if the table can be written as a single column, |
| 1029 | * or if it must be written as 3 columns. Note that we |
| 1030 | * write a 3-column tag if there are 2 samples/pixel and |
| 1031 | * a single column of data won't suffice--hmm. |
| 1032 | */ |
| 1033 | switch (td->td_samplesperpixel - td->td_extrasamples) { |
| 1034 | default: if (_TIFFmemcmp(tf[0], tf[2], n)) { ncols = 3; break; } |
| 1035 | case 2: if (_TIFFmemcmp(tf[0], tf[1], n)) { ncols = 3; break; } |
| 1036 | case 1: case 0: ncols = 1; |
| 1037 | } |
| 1038 | return (TIFFWriteShortTable(tif, |
| 1039 | TIFFTAG_TRANSFERFUNCTION, dir, ncols, tf)); |
| 1040 | } |
| 1041 | #endif |
| 1042 | |
| 1043 | #ifdef CMYK_SUPPORT |
| 1044 | static int |
| 1045 | TIFFWriteInkNames(TIFF* tif, TIFFDirEntry* dir) |
| 1046 | { |
| 1047 | TIFFDirectory* td = &tif->tif_dir; |
| 1048 | |
| 1049 | dir->tdir_tag = TIFFTAG_INKNAMES; |
| 1050 | dir->tdir_type = (short) TIFF_ASCII; |
| 1051 | dir->tdir_count = td->td_inknameslen; |
| 1052 | return (TIFFWriteByteArray(tif, dir, td->td_inknames)); |
| 1053 | } |
| 1054 | #endif |
| 1055 | |
| 1056 | /* |
| 1057 | * Write a contiguous directory item. |
| 1058 | */ |
| 1059 | static int |
| 1060 | TIFFWriteData(TIFF* tif, TIFFDirEntry* dir, char* cp) |
| 1061 | { |
| 1062 | tsize_t cc; |
| 1063 | |
| 1064 | if (tif->tif_flags & TIFF_SWAB) { |
| 1065 | switch (dir->tdir_type) { |
| 1066 | case TIFF_SHORT: |
| 1067 | case TIFF_SSHORT: |
| 1068 | TIFFSwabArrayOfShort((uint16*) cp, dir->tdir_count); |
| 1069 | break; |
| 1070 | case TIFF_LONG: |
| 1071 | case TIFF_SLONG: |
| 1072 | case TIFF_FLOAT: |
| 1073 | TIFFSwabArrayOfLong((uint32*) cp, dir->tdir_count); |
| 1074 | break; |
| 1075 | case TIFF_RATIONAL: |
| 1076 | case TIFF_SRATIONAL: |
| 1077 | TIFFSwabArrayOfLong((uint32*) cp, 2*dir->tdir_count); |
| 1078 | break; |
| 1079 | case TIFF_DOUBLE: |
| 1080 | TIFFSwabArrayOfDouble((double*) cp, dir->tdir_count); |
| 1081 | break; |
| 1082 | } |
| 1083 | } |
| 1084 | dir->tdir_offset = tif->tif_dataoff; |
| 1085 | cc = dir->tdir_count * TIFFDataWidth((TIFFDataType) dir->tdir_type); |
| 1086 | if (SeekOK(tif, dir->tdir_offset) && |
| 1087 | WriteOK(tif, cp, cc)) { |
| 1088 | tif->tif_dataoff += (cc + 1) & ~1; |
| 1089 | return (1); |
| 1090 | } |
| 1091 | TIFFError(tif->tif_name, "Error writing data for field \"%s\"", |
| 1092 | _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); |
| 1093 | return (0); |
| 1094 | } |
| 1095 | |
| 1096 | /* |
| 1097 | * Similar to TIFFWriteDirectory(), but if the directory has already |
| 1098 | * been written once, it is relocated to the end of the file, in case it |
| 1099 | * has changed in size. Note that this will result in the loss of the |
| 1100 | * previously used directory space. |
| 1101 | */ |
| 1102 | |
| 1103 | int |
| 1104 | TIFFRewriteDirectory( TIFF *tif ) |
| 1105 | { |
| 1106 | static const char module[] = "TIFFRewriteDirectory"; |
| 1107 | |
| 1108 | /* We don't need to do anything special if it hasn't been written. */ |
| 1109 | if( tif->tif_diroff == 0 ) |
| 1110 | return TIFFWriteDirectory( tif ); |
| 1111 | |
| 1112 | /* |
| 1113 | ** Find and zero the pointer to this directory, so that TIFFLinkDirectory |
| 1114 | ** will cause it to be added after this directories current pre-link. |
| 1115 | */ |
| 1116 | |
| 1117 | /* Is it the first directory in the file? */ |
| 1118 | if (tif->tif_header.tiff_diroff == tif->tif_diroff) |
| 1119 | { |
| 1120 | tif->tif_header.tiff_diroff = 0; |
| 1121 | tif->tif_diroff = 0; |
| 1122 | |
| 1123 | #if defined(__hpux) && defined(__LP64__) |
| 1124 | #define HDROFF(f) ((toff_t)(unsigned long) &(((TIFFHeader*) 0)->f)) |
| 1125 | #else |
| 1126 | #define HDROFF(f) ((toff_t) &(((TIFFHeader*) 0)->f)) |
| 1127 | #endif |
| 1128 | TIFFSeekFile(tif, HDROFF(tiff_diroff), SEEK_SET); |
| 1129 | if (!WriteOK(tif, &(tif->tif_header.tiff_diroff), |
| 1130 | sizeof (tif->tif_diroff))) |
| 1131 | { |
| 1132 | TIFFError(tif->tif_name, "Error updating TIFF header"); |
| 1133 | return (0); |
| 1134 | } |
| 1135 | } |
| 1136 | else |
| 1137 | { |
| 1138 | toff_t nextdir, off; |
| 1139 | |
| 1140 | nextdir = tif->tif_header.tiff_diroff; |
| 1141 | do { |
| 1142 | uint16 dircount; |
| 1143 | |
| 1144 | if (!SeekOK(tif, nextdir) || |
| 1145 | !ReadOK(tif, &dircount, sizeof (dircount))) { |
| 1146 | TIFFError(module, "Error fetching directory count"); |
| 1147 | return (0); |
| 1148 | } |
| 1149 | if (tif->tif_flags & TIFF_SWAB) |
| 1150 | TIFFSwabShort(&dircount); |
| 1151 | (void) TIFFSeekFile(tif, |
| 1152 | dircount * sizeof (TIFFDirEntry), SEEK_CUR); |
| 1153 | if (!ReadOK(tif, &nextdir, sizeof (nextdir))) { |
| 1154 | TIFFError(module, "Error fetching directory link"); |
| 1155 | return (0); |
| 1156 | } |
| 1157 | if (tif->tif_flags & TIFF_SWAB) |
| 1158 | TIFFSwabLong(&nextdir); |
| 1159 | } while (nextdir != tif->tif_diroff && nextdir != 0); |
| 1160 | off = TIFFSeekFile(tif, 0, SEEK_CUR); /* get current offset */ |
| 1161 | (void) TIFFSeekFile(tif, off - (toff_t)sizeof(nextdir), SEEK_SET); |
| 1162 | tif->tif_diroff = 0; |
| 1163 | if (!WriteOK(tif, &(tif->tif_diroff), sizeof (nextdir))) { |
| 1164 | TIFFError(module, "Error writing directory link"); |
| 1165 | return (0); |
| 1166 | } |
| 1167 | } |
| 1168 | |
| 1169 | /* |
| 1170 | ** Now use TIFFWriteDirectory() normally. |
| 1171 | */ |
| 1172 | |
| 1173 | return TIFFWriteDirectory( tif ); |
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | /* |
| 1178 | * Link the current directory into the |
| 1179 | * directory chain for the file. |
| 1180 | */ |
| 1181 | static int |
| 1182 | TIFFLinkDirectory(TIFF* tif) |
| 1183 | { |
| 1184 | static const char module[] = "TIFFLinkDirectory"; |
| 1185 | toff_t nextdir; |
| 1186 | toff_t diroff, off; |
| 1187 | |
| 1188 | tif->tif_diroff = (TIFFSeekFile(tif, (toff_t) 0, SEEK_END)+1) &~ 1; |
| 1189 | diroff = tif->tif_diroff; |
| 1190 | if (tif->tif_flags & TIFF_SWAB) |
| 1191 | TIFFSwabLong(&diroff); |
| 1192 | #if SUBIFD_SUPPORT |
| 1193 | if (tif->tif_flags & TIFF_INSUBIFD) { |
| 1194 | (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET); |
| 1195 | if (!WriteOK(tif, &diroff, sizeof (diroff))) { |
| 1196 | TIFFError(module, |
| 1197 | "%s: Error writing SubIFD directory link", |
| 1198 | tif->tif_name); |
| 1199 | return (0); |
| 1200 | } |
| 1201 | /* |
| 1202 | * Advance to the next SubIFD or, if this is |
| 1203 | * the last one configured, revert back to the |
| 1204 | * normal directory linkage. |
| 1205 | */ |
| 1206 | if (--tif->tif_nsubifd) |
| 1207 | tif->tif_subifdoff += sizeof (diroff); |
| 1208 | else |
| 1209 | tif->tif_flags &= ~TIFF_INSUBIFD; |
| 1210 | return (1); |
| 1211 | } |
| 1212 | #endif |
| 1213 | if (tif->tif_header.tiff_diroff == 0) { |
| 1214 | /* |
| 1215 | * First directory, overwrite offset in header. |
| 1216 | */ |
| 1217 | tif->tif_header.tiff_diroff = tif->tif_diroff; |
| 1218 | #define HDROFF(f) ((toff_t) &(((TIFFHeader*) 0)->f)) |
| 1219 | (void) TIFFSeekFile(tif, HDROFF(tiff_diroff), SEEK_SET); |
| 1220 | if (!WriteOK(tif, &diroff, sizeof (diroff))) { |
| 1221 | TIFFError(tif->tif_name, "Error writing TIFF header"); |
| 1222 | return (0); |
| 1223 | } |
| 1224 | return (1); |
| 1225 | } |
| 1226 | /* |
| 1227 | * Not the first directory, search to the last and append. |
| 1228 | */ |
| 1229 | nextdir = tif->tif_header.tiff_diroff; |
| 1230 | do { |
| 1231 | uint16 dircount; |
| 1232 | |
| 1233 | if (!SeekOK(tif, nextdir) || |
| 1234 | !ReadOK(tif, &dircount, sizeof (dircount))) { |
| 1235 | TIFFError(module, "Error fetching directory count"); |
| 1236 | return (0); |
| 1237 | } |
| 1238 | if (tif->tif_flags & TIFF_SWAB) |
| 1239 | TIFFSwabShort(&dircount); |
| 1240 | (void) TIFFSeekFile(tif, |
| 1241 | dircount * sizeof (TIFFDirEntry), SEEK_CUR); |
| 1242 | if (!ReadOK(tif, &nextdir, sizeof (nextdir))) { |
| 1243 | TIFFError(module, "Error fetching directory link"); |
| 1244 | return (0); |
| 1245 | } |
| 1246 | if (tif->tif_flags & TIFF_SWAB) |
| 1247 | TIFFSwabLong(&nextdir); |
| 1248 | } while (nextdir != 0); |
| 1249 | off = TIFFSeekFile(tif, 0, SEEK_CUR); /* get current offset */ |
| 1250 | (void) TIFFSeekFile(tif, off - (toff_t)sizeof(nextdir), SEEK_SET); |
| 1251 | if (!WriteOK(tif, &diroff, sizeof (diroff))) { |
| 1252 | TIFFError(module, "Error writing directory link"); |
| 1253 | return (0); |
| 1254 | } |
| 1255 | return (1); |
| 1256 | } |