third_party/tiff_v403/tif_open.c - Issue 1563103002: XFA: Upgrade to libtiff 4.0.6.

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Issue 1563103002: XFA: Upgrade to libtiff 4.0.6. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa

Patch Set: rename to libtiff Created 4 years, 11 months ago

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1 /* $Id: tif_open.c,v 1.46 2010-12-06 16:54:54 faxguy Exp $ */

2

3 /*

4 * Copyright (c) 1988-1997 Sam Leffler

5 * Copyright (c) 1991-1997 Silicon Graphics, Inc.

6 *

7 * Permission to use, copy, modify, distribute, and sell this software and

8 * its documentation for any purpose is hereby granted without fee, provided

9 * that (i) the above copyright notices and this permission notice appear in

10 * all copies of the software and related documentation, and (ii) the names of

11 * Sam Leffler and Silicon Graphics may not be used in any advertising or

12 * publicity relating to the software without the specific, prior written

13 * permission of Sam Leffler and Silicon Graphics.

14 *

15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,

16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY

17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

18 *

19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR

20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,

21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF

23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE

24 * OF THIS SOFTWARE.

25 */

26

27 /*

28 * TIFF Library.

29 */

30 #include "tiffiop.h"

31

32 /*

33 * Dummy functions to fill the omitted client procedures.

34 */

35 static int

36 _tiffDummyMapProc(thandle_t fd, void** pbase, toff_t* psize)

37 {

38 (void) fd; (void) pbase; (void) psize;

39 return (0);

40 }

41

42 static void

43 _tiffDummyUnmapProc(thandle_t fd, void* base, toff_t size)

44 {

45 (void) fd; (void) base; (void) size;

46 }

47

48 int

49 _TIFFgetMode(const char* mode, const char* module)

50 {

51 int m = -1;

52

53 switch (mode[0]) {

54 case 'r':

55 m = O_RDONLY;

56 if (mode[1] == '+')

57 m = O_RDWR;

58 break;

59 case 'w':

60 case 'a':

61 m = O_RDWR\|O_CREAT;

62 if (mode[0] == 'w')

63 m \|= O_TRUNC;

64 break;

65 default:

66 TIFFErrorExt(0, module, "\"%s\": Bad mode", mode);

67 break;

68 }

69 return (m);

70 }

71

72 TIFF*

73 TIFFClientOpen(

74 const char* name, const char* mode,

75 thandle_t clientdata,

76 TIFFReadWriteProc readproc,

77 TIFFReadWriteProc writeproc,

78 TIFFSeekProc seekproc,

79 TIFFCloseProc closeproc,

80 TIFFSizeProc sizeproc,

81 TIFFMapFileProc mapproc,

82 TIFFUnmapFileProc unmapproc

83 )

84 {

85 static const char module[] = "TIFFClientOpen";

86 TIFF *tif;

87 int m;

88 const char* cp;

89

90 /* The following are configuration checks. They should be redundant, but should not

91 * compile to any actual code in an optimised release build anyway. If a ny of them

92 * fail, (makefile-based or other) configuration is not correct */

93 assert(sizeof(uint8)==1);

94 assert(sizeof(int8)==1);

95 assert(sizeof(uint16)==2);

96 assert(sizeof(int16)==2);

97 assert(sizeof(uint32)==4);

98 assert(sizeof(int32)==4);

99 assert(sizeof(uint64)==8);

100 assert(sizeof(int64)==8);

101 assert(sizeof(tmsize_t)==sizeof(void*));

102 {

103 union{

104 uint8 a8[2];

105 uint16 a16;

106 } n;

107 n.a8[0]=1;

108 n.a8[1]=0;

109 #ifdef WORDS_BIGENDIAN

110 assert(n.a16==256);

111 #else

112 assert(n.a16==1);

113 #endif

114 }

115

116 m = _TIFFgetMode(mode, module);

117 if (m == -1)

118 goto bad2;

119 tif = (TIFF *)_TIFFmalloc((tmsize_t)(sizeof (TIFF) + strlen(name) + 1));

120 if (tif == NULL) {

121 TIFFErrorExt(clientdata, module, "%s: Out of memory (TIFF struct ure)", name);

122 goto bad2;

123 }

124 _TIFFmemset(tif, 0, sizeof (*tif));

125 tif->tif_name = (char *)tif + sizeof (TIFF);

126 strcpy(tif->tif_name, name);

127 tif->tif_mode = m &~ (O_CREAT\|O_TRUNC);

128 tif->tif_curdir = (uint16) -1; /* non-existent directory */

129 tif->tif_curoff = 0;

130 tif->tif_curstrip = (uint32) -1; /* invalid strip */

131 tif->tif_row = (uint32) -1; /* read/write pre-increment */

132 tif->tif_clientdata = clientdata;

133 if (!readproc \|\| !writeproc \|\| !seekproc \|\| !closeproc \|\| !sizeproc) {

134 TIFFErrorExt(clientdata, module,

135 "One of the client procedures is NULL pointer.");

136 goto bad2;

137 }

138 tif->tif_readproc = readproc;

139 tif->tif_writeproc = writeproc;

140 tif->tif_seekproc = seekproc;

141 tif->tif_closeproc = closeproc;

142 tif->tif_sizeproc = sizeproc;

143 if (mapproc)

144 tif->tif_mapproc = mapproc;

145 else

146 tif->tif_mapproc = _tiffDummyMapProc;

147 if (unmapproc)

148 tif->tif_unmapproc = unmapproc;

149 else

150 tif->tif_unmapproc = _tiffDummyUnmapProc;

151 _TIFFSetDefaultCompressionState(tif); /* setup default state */

152 /*

153 * Default is to return data MSB2LSB and enable the

154 * use of memory-mapped files and strip chopping when

155 * a file is opened read-only.

156 */

157 tif->tif_flags = FILLORDER_MSB2LSB;

158 if (m == O_RDONLY )

159 tif->tif_flags \|= TIFF_MAPPED;

160

161 #ifdef STRIPCHOP_DEFAULT

162 if (m == O_RDONLY \|\| m == O_RDWR)

163 tif->tif_flags \|= STRIPCHOP_DEFAULT;

164 #endif

165

166 /*

167 * Process library-specific flags in the open mode string.

168 * The following flags may be used to control intrinsic library

169 * behaviour that may or may not be desirable (usually for

170 * compatibility with some application that claims to support

171 * TIFF but only supports some braindead idea of what the

172 * vendor thinks TIFF is):

173 *

174 * 'l' use little-endian byte order for creating a file

175 * 'b' use big-endian byte order for creating a file

176 * 'L' read/write information using LSB2MSB bit order

177 * 'B' read/write information using MSB2LSB bit order

178 * 'H' read/write information using host bit order

179 * 'M' enable use of memory-mapped files when supported

180 * 'm' disable use of memory-mapped files

181 * 'C' enable strip chopping support when reading

182 * 'c' disable strip chopping support

183 * 'h' read TIFF header only, do not load the first IFD

184 * '4' ClassicTIFF for creating a file (default)

185 * '8' BigTIFF for creating a file

186 *

187 * The use of the 'l' and 'b' flags is strongly discouraged.

188 * These flags are provided solely because numerous vendors,

189 * typically on the PC, do not correctly support TIFF; they

190 * only support the Intel little-endian byte order. This

191 * support is not configured by default because it supports

192 * the violation of the TIFF spec that says that readers MUST

193 * support both byte orders. It is strongly recommended that

194 * you not use this feature except to deal with busted apps

195 * that write invalid TIFF. And even in those cases you should

196 * bang on the vendors to fix their software.

197 *

198 * The 'L', 'B', and 'H' flags are intended for applications

199 * that can optimize operations on data by using a particular

200 * bit order. By default the library returns data in MSB2LSB

201 * bit order for compatibiltiy with older versions of this

202 * library. Returning data in the bit order of the native cpu

203 * makes the most sense but also requires applications to check

204 * the value of the FillOrder tag; something they probably do

205 * not do right now.

206 *

207 * The 'M' and 'm' flags are provided because some virtual memory

208 * systems exhibit poor behaviour when large images are mapped.

209 * These options permit clients to control the use of memory-mapped

210 * files on a per-file basis.

211 *

212 * The 'C' and 'c' flags are provided because the library support

213 * for chopping up large strips into multiple smaller strips is not

214 * application-transparent and as such can cause problems. The 'c'

215 * option permits applications that only want to look at the tags,

216 * for example, to get the unadulterated TIFF tag information.

217 */

218 for (cp = mode; *cp; cp++)

219 switch (*cp) {

220 case 'b':

221 #ifndef WORDS_BIGENDIAN

222 if (m&O_CREAT)

223 tif->tif_flags \|= TIFF_SWAB;

224 #endif

225 break;

226 case 'l':

227 #ifdef WORDS_BIGENDIAN

228 if ((m&O_CREAT))

229 tif->tif_flags \|= TIFF_SWAB;

230 #endif

231 break;

232 case 'B':

233 tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORD ER) \|

234 FILLORDER_MSB2LSB;

235 break;

236 case 'L':

237 tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORD ER) \|

238 FILLORDER_LSB2MSB;

239 break;

240 case 'H':

241 tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORD ER) \|

242 HOST_FILLORDER;

243 break;

244 case 'M':

245 if (m == O_RDONLY)

246 tif->tif_flags \|= TIFF_MAPPED;

247 break;

248 case 'm':

249 if (m == O_RDONLY)

250 tif->tif_flags &= ~TIFF_MAPPED;

251 break;

252 case 'C':

253 if (m == O_RDONLY)

254 tif->tif_flags \|= TIFF_STRIPCHOP;

255 break;

256 case 'c':

257 if (m == O_RDONLY)

258 tif->tif_flags &= ~TIFF_STRIPCHOP;

259 break;

260 case 'h':

261 tif->tif_flags \|= TIFF_HEADERONLY;

262 break;

263 case '8':

264 if (m&O_CREAT)

265 tif->tif_flags \|= TIFF_BIGTIFF;

266 break;

267 }

268 /*

269 * Read in TIFF header.

270 */

271 if ((m & O_TRUNC) \|\|

272 !ReadOK(tif, &tif->tif_header, sizeof (TIFFHeaderClassic))) {

273 if (tif->tif_mode == O_RDONLY) {

274 TIFFErrorExt(tif->tif_clientdata, name,

275 "Cannot read TIFF header");

276 goto bad;

277 }

278 /*

279 * Setup header and write.

280 */

281 #ifdef WORDS_BIGENDIAN

282 tif->tif_header.common.tiff_magic = tif->tif_flags & TIFF_SWAB

283 ? TIFF_LITTLEENDIAN : TIFF_BIGENDIAN;

284 #else

285 tif->tif_header.common.tiff_magic = tif->tif_flags & TIFF_SWAB

286 ? TIFF_BIGENDIAN : TIFF_LITTLEENDIAN;

287 #endif

288 if (!(tif->tif_flags&TIFF_BIGTIFF))

289 {

290 tif->tif_header.common.tiff_version = TIFF_VERSION_CLASS IC;

291 tif->tif_header.classic.tiff_diroff = 0;

292 if (tif->tif_flags & TIFF_SWAB)

293 TIFFSwabShort(&tif->tif_header.common.tiff_versi on);

294 tif->tif_header_size = sizeof(TIFFHeaderClassic);

295 }

296 else

297 {

298 tif->tif_header.common.tiff_version = TIFF_VERSION_BIG;

299 tif->tif_header.big.tiff_offsetsize = 8;

300 tif->tif_header.big.tiff_unused = 0;

301 tif->tif_header.big.tiff_diroff = 0;

302 if (tif->tif_flags & TIFF_SWAB)

303 {

304 TIFFSwabShort(&tif->tif_header.common.tiff_versi on);

305 TIFFSwabShort(&tif->tif_header.big.tiff_offsetsi ze);

306 }

307 tif->tif_header_size = sizeof (TIFFHeaderBig);

308 }

309 /*

310 * The doc for "fopen" for some STD_C_LIBs says that if you

311 * open a file for modify ("+"), then you must fseek (or

312 * fflush?) between any freads and fwrites. This is not

313 * necessary on most systems, but has been shown to be needed

314 * on Solaris.

315 */

316 TIFFSeekFile( tif, 0, SEEK_SET );

317 if (!WriteOK(tif, &tif->tif_header, (tmsize_t)(tif->tif_header_s ize))) {

318 TIFFErrorExt(tif->tif_clientdata, name,

319 "Error writing TIFF header");

320 goto bad;

321 }

322 /*

323 * Setup the byte order handling.

324 */

325 if (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN) {

326 #ifndef WORDS_BIGENDIAN

327 tif->tif_flags \|= TIFF_SWAB;

328 #endif

329 } else {

330 #ifdef WORDS_BIGENDIAN

331 tif->tif_flags \|= TIFF_SWAB;

332 #endif

333 }

334 /*

335 * Setup default directory.

336 */

337 if (!TIFFDefaultDirectory(tif))

338 goto bad;

339 tif->tif_diroff = 0;

340 tif->tif_dirlist = NULL;

341 tif->tif_dirlistsize = 0;

342 tif->tif_dirnumber = 0;

343 return (tif);

344 }

345 /*

346 * Setup the byte order handling.

347 */

348 if (tif->tif_header.common.tiff_magic != TIFF_BIGENDIAN &&

349 tif->tif_header.common.tiff_magic != TIFF_LITTLEENDIAN

350 #if MDI_SUPPORT

351 &&

352 #if HOST_BIGENDIAN

353 tif->tif_header.common.tiff_magic != MDI_BIGENDIAN

354 #else

355 tif->tif_header.common.tiff_magic != MDI_LITTLEENDIAN

356 #endif

357 ) {

358 TIFFErrorExt(tif->tif_clientdata, name,

359 "Not a TIFF or MDI file, bad magic number %d (0x%x)",

360 #else

361 ) {

362 TIFFErrorExt(tif->tif_clientdata, name,

363 "Not a TIFF file, bad magic number %d (0x%x)",

364 #endif

365 tif->tif_header.common.tiff_magic,

366 tif->tif_header.common.tiff_magic);

367 goto bad;

368 }

369 if (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN) {

370 #ifndef WORDS_BIGENDIAN

371 tif->tif_flags \|= TIFF_SWAB;

372 #endif

373 } else {

374 #ifdef WORDS_BIGENDIAN

375 tif->tif_flags \|= TIFF_SWAB;

376 #endif

377 }

378 if (tif->tif_flags & TIFF_SWAB)

379 TIFFSwabShort(&tif->tif_header.common.tiff_version);

380 if ((tif->tif_header.common.tiff_version != TIFF_VERSION_CLASSIC)&&

381 (tif->tif_header.common.tiff_version != TIFF_VERSION_BIG)) {

382 TIFFErrorExt(tif->tif_clientdata, name,

383 "Not a TIFF file, bad version number %d (0x%x)",

384 tif->tif_header.common.tiff_version,

385 tif->tif_header.common.tiff_version);

386 goto bad;

387 }

388 if (tif->tif_header.common.tiff_version == TIFF_VERSION_CLASSIC)

389 {

390 if (tif->tif_flags & TIFF_SWAB)

391 TIFFSwabLong(&tif->tif_header.classic.tiff_diroff);

392 tif->tif_header_size = sizeof(TIFFHeaderClassic);

393 }

394 else

395 {

396 if (!ReadOK(tif, ((uint8*)(&tif->tif_header) + sizeof(TIFFHeader Classic)), (sizeof(TIFFHeaderBig)-sizeof(TIFFHeaderClassic))))

397 {

398 TIFFErrorExt(tif->tif_clientdata, name,

399 "Cannot read TIFF header");

400 goto bad;

401 }

402 if (tif->tif_flags & TIFF_SWAB)

403 {

404 TIFFSwabShort(&tif->tif_header.big.tiff_offsetsize);

405 TIFFSwabLong8(&tif->tif_header.big.tiff_diroff);

406 }

407 if (tif->tif_header.big.tiff_offsetsize != 8)

408 {

409 TIFFErrorExt(tif->tif_clientdata, name,

410 "Not a TIFF file, bad BigTIFF offsetsize %d (0x%x)",

411 tif->tif_header.big.tiff_offsetsize,

412 tif->tif_header.big.tiff_offsetsize);

413 goto bad;

414 }

415 if (tif->tif_header.big.tiff_unused != 0)

416 {

417 TIFFErrorExt(tif->tif_clientdata, name,

418 "Not a TIFF file, bad BigTIFF unused %d (0x%x)",

419 tif->tif_header.big.tiff_unused,

420 tif->tif_header.big.tiff_unused);

421 goto bad;

422 }

423 tif->tif_header_size = sizeof(TIFFHeaderBig);

424 tif->tif_flags \|= TIFF_BIGTIFF;

425 }

426 tif->tif_flags \|= TIFF_MYBUFFER;

427 tif->tif_rawcp = tif->tif_rawdata = 0;

428 tif->tif_rawdatasize = 0;

429 tif->tif_rawdataoff = 0;

430 tif->tif_rawdataloaded = 0;

431

432 switch (mode[0]) {

433 case 'r':

434 if (!(tif->tif_flags&TIFF_BIGTIFF))

435 tif->tif_nextdiroff = tif->tif_header.classic.ti ff_diroff;

436 else

437 tif->tif_nextdiroff = tif->tif_header.big.tiff_d iroff;

438 /*

439 * Try to use a memory-mapped file if the client

440 * has not explicitly suppressed usage with the

441 * 'm' flag in the open mode (see above).

442 */

443 if (tif->tif_flags & TIFF_MAPPED)

444 {

445 toff_t n;

446 if (TIFFMapFileContents(tif,(void**)(&tif->tif_b ase),&n))

447 {

448 tif->tif_size=(tmsize_t)n;

449 assert((toff_t)tif->tif_size==n);

450 }

451 else

452 tif->tif_flags &= ~TIFF_MAPPED;

453 }

454 /*

455 * Sometimes we do not want to read the first directory (for example,

456 * it may be broken) and want to proceed to other direct ories. I this

457 * case we use the TIFF_HEADERONLY flag to open file and return

458 * immediately after reading TIFF header.

459 */

460 if (tif->tif_flags & TIFF_HEADERONLY)

461 return (tif);

462

463 /*

464 * Setup initial directory.

465 */

466 if (TIFFReadDirectory(tif)) {

467 tif->tif_rawcc = (tmsize_t)-1;

468 tif->tif_flags \|= TIFF_BUFFERSETUP;

469 return (tif);

470 }

471 break;

472 case 'a':

473 /*

474 * New directories are automatically append

475 * to the end of the directory chain when they

476 * are written out (see TIFFWriteDirectory).

477 */

478 if (!TIFFDefaultDirectory(tif))

479 goto bad;

480 return (tif);

481 }

482 bad:

483 tif->tif_mode = O_RDONLY; /* XXX avoid flush */

484 TIFFCleanup(tif);

485 bad2:

486 return ((TIFF*)0);

487 }

488

489 /*

490 * Query functions to access private data.

491 */

492

493 /*

494 * Return open file's name.

495 */

496 const char *

497 TIFFFileName(TIFF* tif)

498 {

499 return (tif->tif_name);

500 }

501

502 /*

503 * Set the file name.

504 */

505 const char *

506 TIFFSetFileName(TIFF* tif, const char *name)

507 {

508 const char* old_name = tif->tif_name;

509 tif->tif_name = (char *)name;

510 return (old_name);

511 }

512

513 /*

514 * Return open file's I/O descriptor.

515 */

516 int

517 TIFFFileno(TIFF* tif)

518 {

519 return (tif->tif_fd);

520 }

521

522 /*

523 * Set open file's I/O descriptor, and return previous value.

524 */

525 int

526 TIFFSetFileno(TIFF* tif, int fd)

527 {

528 int old_fd = tif->tif_fd;

529 tif->tif_fd = fd;

530 return old_fd;

531 }

532

533 /*

534 * Return open file's clientdata.

535 */

536 thandle_t

537 TIFFClientdata(TIFF* tif)

538 {

539 return (tif->tif_clientdata);

540 }

541

542 /*

543 * Set open file's clientdata, and return previous value.

544 */

545 thandle_t

546 TIFFSetClientdata(TIFF* tif, thandle_t newvalue)

547 {

548 thandle_t m = tif->tif_clientdata;

549 tif->tif_clientdata = newvalue;

550 return m;

551 }

552

553 /*

554 * Return read/write mode.

555 */

556 int

557 TIFFGetMode(TIFF* tif)

558 {

559 return (tif->tif_mode);

560 }

561

562 /*

563 * Return read/write mode.

564 */

565 int

566 TIFFSetMode(TIFF* tif, int mode)

567 {

568 int old_mode = tif->tif_mode;

569 tif->tif_mode = mode;

570 return (old_mode);

571 }

572

573 /*

574 * Return nonzero if file is organized in

575 * tiles; zero if organized as strips.

576 */

577 int

578 TIFFIsTiled(TIFF* tif)

579 {

580 return (isTiled(tif));

581 }

582

583 /*

584 * Return current row being read/written.

585 */

586 uint32

587 TIFFCurrentRow(TIFF* tif)

588 {

589 return (tif->tif_row);

590 }

591

592 /*

593 * Return index of the current directory.

594 */

595 uint16

596 TIFFCurrentDirectory(TIFF* tif)

597 {

598 return (tif->tif_curdir);

599 }

600

601 /*

602 * Return current strip.

603 */

604 uint32

605 TIFFCurrentStrip(TIFF* tif)

606 {

607 return (tif->tif_curstrip);

608 }

609

610 /*

611 * Return current tile.

612 */

613 uint32

614 TIFFCurrentTile(TIFF* tif)

615 {

616 return (tif->tif_curtile);

617 }

618

619 /*

620 * Return nonzero if the file has byte-swapped data.

621 */

622 int

623 TIFFIsByteSwapped(TIFF* tif)

624 {

625 return ((tif->tif_flags & TIFF_SWAB) != 0);

626 }

627

628 /*

629 * Return nonzero if the data is returned up-sampled.

630 */

631 int

632 TIFFIsUpSampled(TIFF* tif)

633 {

634 return (isUpSampled(tif));

635 }

636

637 /*

638 * Return nonzero if the data is returned in MSB-to-LSB bit order.

639 */

640 int

641 TIFFIsMSB2LSB(TIFF* tif)

642 {

643 return (isFillOrder(tif, FILLORDER_MSB2LSB));

644 }

645

646 /*

647 * Return nonzero if given file was written in big-endian order.

648 */

649 int

650 TIFFIsBigEndian(TIFF* tif)

651 {

652 return (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN);

653 }

654

655 /*

656 * Return pointer to file read method.

657 */

658 TIFFReadWriteProc

659 TIFFGetReadProc(TIFF* tif)

660 {

661 return (tif->tif_readproc);

662 }

663

664 /*

665 * Return pointer to file write method.

666 */

667 TIFFReadWriteProc

668 TIFFGetWriteProc(TIFF* tif)

669 {

670 return (tif->tif_writeproc);

671 }

672

673 /*

674 * Return pointer to file seek method.

675 */

676 TIFFSeekProc

677 TIFFGetSeekProc(TIFF* tif)

678 {

679 return (tif->tif_seekproc);

680 }

681

682 /*

683 * Return pointer to file close method.

684 */

685 TIFFCloseProc

686 TIFFGetCloseProc(TIFF* tif)

687 {

688 return (tif->tif_closeproc);

689 }

690

691 /*

692 * Return pointer to file size requesting method.

693 */

694 TIFFSizeProc

695 TIFFGetSizeProc(TIFF* tif)

696 {

697 return (tif->tif_sizeproc);

698 }

699

700 /*

701 * Return pointer to memory mapping method.

702 */

703 TIFFMapFileProc

704 TIFFGetMapFileProc(TIFF* tif)

705 {

706 return (tif->tif_mapproc);

707 }

708

709 /*

710 * Return pointer to memory unmapping method.

711 */

712 TIFFUnmapFileProc

713 TIFFGetUnmapFileProc(TIFF* tif)

714 {

715 return (tif->tif_unmapproc);

716 }

717

718 /* vim: set ts=8 sts=8 sw=8 noet: */

719 /*

720 * Local Variables:

721 * mode: c

722 * c-basic-offset: 8

723 * fill-column: 78

724 * End:

725 */

726

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