[LIBTIFF] Update to version 4.1.0. CORE-16550
[reactos.git] / dll / 3rdparty / libtiff / tif_dirwrite.c
1 /*
2 * Copyright (c) 1988-1997 Sam Leffler
3 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
4 *
5 * Permission to use, copy, modify, distribute, and sell this software and
6 * its documentation for any purpose is hereby granted without fee, provided
7 * that (i) the above copyright notices and this permission notice appear in
8 * all copies of the software and related documentation, and (ii) the names of
9 * Sam Leffler and Silicon Graphics may not be used in any advertising or
10 * publicity relating to the software without the specific, prior written
11 * permission of Sam Leffler and Silicon Graphics.
12 *
13 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
14 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
15 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
16 *
17 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
18 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
19 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
20 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
21 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
22 * OF THIS SOFTWARE.
23 */
24
25 /*
26 * TIFF Library.
27 *
28 * Directory Write Support Routines.
29 */
30 #include <precomp.h>
31 #include <float.h>
32
33 #ifdef HAVE_IEEEFP
34 #define TIFFCvtNativeToIEEEFloat(tif, n, fp)
35 #define TIFFCvtNativeToIEEEDouble(tif, n, dp)
36 #else
37 extern void TIFFCvtNativeToIEEEFloat(TIFF* tif, uint32 n, float* fp);
38 extern void TIFFCvtNativeToIEEEDouble(TIFF* tif, uint32 n, double* dp);
39 #endif
40
41 static int TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff);
42
43 static int TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
44 #if 0
45 static int TIFFWriteDirectoryTagSampleformatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
46 #endif
47
48 static int TIFFWriteDirectoryTagAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, char* value);
49 static int TIFFWriteDirectoryTagUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value);
50 #ifdef notdef
51 static int TIFFWriteDirectoryTagByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value);
52 #endif
53 static int TIFFWriteDirectoryTagByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value);
54 #if 0
55 static int TIFFWriteDirectoryTagBytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value);
56 #endif
57 #ifdef notdef
58 static int TIFFWriteDirectoryTagSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value);
59 #endif
60 static int TIFFWriteDirectoryTagSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int8* value);
61 #if 0
62 static int TIFFWriteDirectoryTagSbytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value);
63 #endif
64 static int TIFFWriteDirectoryTagShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value);
65 static int TIFFWriteDirectoryTagShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value);
66 static int TIFFWriteDirectoryTagShortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value);
67 #ifdef notdef
68 static int TIFFWriteDirectoryTagSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value);
69 #endif
70 static int TIFFWriteDirectoryTagSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int16* value);
71 #if 0
72 static int TIFFWriteDirectoryTagSshortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value);
73 #endif
74 static int TIFFWriteDirectoryTagLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value);
75 static int TIFFWriteDirectoryTagLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value);
76 #if 0
77 static int TIFFWriteDirectoryTagLongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value);
78 #endif
79 #ifdef notdef
80 static int TIFFWriteDirectoryTagSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value);
81 #endif
82 static int TIFFWriteDirectoryTagSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value);
83 #if 0
84 static int TIFFWriteDirectoryTagSlongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value);
85 #endif
86 #ifdef notdef
87 static int TIFFWriteDirectoryTagLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint64 value);
88 #endif
89 static int TIFFWriteDirectoryTagLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
90 #ifdef notdef
91 static int TIFFWriteDirectoryTagSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int64 value);
92 #endif
93 static int TIFFWriteDirectoryTagSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int64* value);
94 static int TIFFWriteDirectoryTagRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
95 static int TIFFWriteDirectoryTagRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
96 static int TIFFWriteDirectoryTagSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
97 #ifdef notdef
98 static int TIFFWriteDirectoryTagFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value);
99 #endif
100 static int TIFFWriteDirectoryTagFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
101 #if 0
102 static int TIFFWriteDirectoryTagFloatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value);
103 #endif
104 #ifdef notdef
105 static int TIFFWriteDirectoryTagDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
106 #endif
107 static int TIFFWriteDirectoryTagDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
108 #if 0
109 static int TIFFWriteDirectoryTagDoublePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
110 #endif
111 static int TIFFWriteDirectoryTagIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value);
112 #ifdef notdef
113 static int TIFFWriteDirectoryTagIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
114 #endif
115 static int TIFFWriteDirectoryTagShortLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value);
116 static int TIFFWriteDirectoryTagLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
117 static int TIFFWriteDirectoryTagIfdIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
118 #ifdef notdef
119 static int TIFFWriteDirectoryTagShortLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
120 #endif
121 static int TIFFWriteDirectoryTagColormap(TIFF* tif, uint32* ndir, TIFFDirEntry* dir);
122 static int TIFFWriteDirectoryTagTransferfunction(TIFF* tif, uint32* ndir, TIFFDirEntry* dir);
123 static int TIFFWriteDirectoryTagSubifd(TIFF* tif, uint32* ndir, TIFFDirEntry* dir);
124
125 static int TIFFWriteDirectoryTagCheckedAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, char* value);
126 static int TIFFWriteDirectoryTagCheckedUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value);
127 #ifdef notdef
128 static int TIFFWriteDirectoryTagCheckedByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value);
129 #endif
130 static int TIFFWriteDirectoryTagCheckedByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value);
131 #ifdef notdef
132 static int TIFFWriteDirectoryTagCheckedSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value);
133 #endif
134 static int TIFFWriteDirectoryTagCheckedSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int8* value);
135 static int TIFFWriteDirectoryTagCheckedShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value);
136 static int TIFFWriteDirectoryTagCheckedShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value);
137 #ifdef notdef
138 static int TIFFWriteDirectoryTagCheckedSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value);
139 #endif
140 static int TIFFWriteDirectoryTagCheckedSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int16* value);
141 static int TIFFWriteDirectoryTagCheckedLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value);
142 static int TIFFWriteDirectoryTagCheckedLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value);
143 #ifdef notdef
144 static int TIFFWriteDirectoryTagCheckedSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value);
145 #endif
146 static int TIFFWriteDirectoryTagCheckedSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value);
147 #ifdef notdef
148 static int TIFFWriteDirectoryTagCheckedLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint64 value);
149 #endif
150 static int TIFFWriteDirectoryTagCheckedLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
151 #ifdef notdef
152 static int TIFFWriteDirectoryTagCheckedSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int64 value);
153 #endif
154 static int TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int64* value);
155 static int TIFFWriteDirectoryTagCheckedRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
156 static int TIFFWriteDirectoryTagCheckedRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
157 static int TIFFWriteDirectoryTagCheckedSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
158 #ifdef notdef
159 static int TIFFWriteDirectoryTagCheckedFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value);
160 #endif
161 static int TIFFWriteDirectoryTagCheckedFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
162 #ifdef notdef
163 static int TIFFWriteDirectoryTagCheckedDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
164 #endif
165 static int TIFFWriteDirectoryTagCheckedDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
166 static int TIFFWriteDirectoryTagCheckedIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value);
167 static int TIFFWriteDirectoryTagCheckedIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
168
169 static int TIFFWriteDirectoryTagData(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 datatype, uint32 count, uint32 datalength, void* data);
170
171 static int TIFFLinkDirectory(TIFF*);
172
173 /*
174 * Write the contents of the current directory
175 * to the specified file. This routine doesn't
176 * handle overwriting a directory with auxiliary
177 * storage that's been changed.
178 */
179 int
180 TIFFWriteDirectory(TIFF* tif)
181 {
182 return TIFFWriteDirectorySec(tif,TRUE,TRUE,NULL);
183 }
184
185 /*
186 * This is an advanced writing function that must be used in a particular
187 * sequence, and generally together with TIFFForceStrileArrayWriting(),
188 * to make its intended effect. Its aim is to modify the location
189 * where the [Strip/Tile][Offsets/ByteCounts] arrays are located in the file.
190 * More precisely, when TIFFWriteCheck() will be called, the tag entries for
191 * those arrays will be written with type = count = offset = 0 as a temporary
192 * value.
193 *
194 * Its effect is only valid for the current directory, and before
195 * TIFFWriteDirectory() is first called, and will be reset when
196 * changing directory.
197 *
198 * The typical sequence of calls is:
199 * TIFFOpen()
200 * [ TIFFCreateDirectory(tif) ]
201 * Set fields with calls to TIFFSetField(tif, ...)
202 * TIFFDeferStrileArrayWriting(tif)
203 * TIFFWriteCheck(tif, ...)
204 * TIFFWriteDirectory(tif)
205 * ... potentially create other directories and come back to the above directory
206 * TIFFForceStrileArrayWriting(tif): emit the arrays at the end of file
207 *
208 * Returns 1 in case of success, 0 otherwise.
209 */
210 int TIFFDeferStrileArrayWriting(TIFF* tif)
211 {
212 static const char module[] = "TIFFDeferStrileArrayWriting";
213 if (tif->tif_mode == O_RDONLY)
214 {
215 TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
216 "File opened in read-only mode");
217 return 0;
218 }
219 if( tif->tif_diroff != 0 )
220 {
221 TIFFErrorExt(tif->tif_clientdata, module,
222 "Directory has already been written");
223 return 0;
224 }
225
226 tif->tif_dir.td_deferstrilearraywriting = TRUE;
227 return 1;
228 }
229
230 /*
231 * Similar to TIFFWriteDirectory(), writes the directory out
232 * but leaves all data structures in memory so that it can be
233 * written again. This will make a partially written TIFF file
234 * readable before it is successfully completed/closed.
235 */
236 int
237 TIFFCheckpointDirectory(TIFF* tif)
238 {
239 int rc;
240 /* Setup the strips arrays, if they haven't already been. */
241 if (tif->tif_dir.td_stripoffset_p == NULL)
242 (void) TIFFSetupStrips(tif);
243 rc = TIFFWriteDirectorySec(tif,TRUE,FALSE,NULL);
244 (void) TIFFSetWriteOffset(tif, TIFFSeekFile(tif, 0, SEEK_END));
245 return rc;
246 }
247
248 int
249 TIFFWriteCustomDirectory(TIFF* tif, uint64* pdiroff)
250 {
251 return TIFFWriteDirectorySec(tif,FALSE,FALSE,pdiroff);
252 }
253
254 /*
255 * Similar to TIFFWriteDirectory(), but if the directory has already
256 * been written once, it is relocated to the end of the file, in case it
257 * has changed in size. Note that this will result in the loss of the
258 * previously used directory space.
259 */
260 int
261 TIFFRewriteDirectory( TIFF *tif )
262 {
263 static const char module[] = "TIFFRewriteDirectory";
264
265 /* We don't need to do anything special if it hasn't been written. */
266 if( tif->tif_diroff == 0 )
267 return TIFFWriteDirectory( tif );
268
269 /*
270 * Find and zero the pointer to this directory, so that TIFFLinkDirectory
271 * will cause it to be added after this directories current pre-link.
272 */
273
274 if (!(tif->tif_flags&TIFF_BIGTIFF))
275 {
276 if (tif->tif_header.classic.tiff_diroff == tif->tif_diroff)
277 {
278 tif->tif_header.classic.tiff_diroff = 0;
279 tif->tif_diroff = 0;
280
281 TIFFSeekFile(tif,4,SEEK_SET);
282 if (!WriteOK(tif, &(tif->tif_header.classic.tiff_diroff),4))
283 {
284 TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
285 "Error updating TIFF header");
286 return (0);
287 }
288 }
289 else
290 {
291 uint32 nextdir;
292 nextdir = tif->tif_header.classic.tiff_diroff;
293 while(1) {
294 uint16 dircount;
295 uint32 nextnextdir;
296
297 if (!SeekOK(tif, nextdir) ||
298 !ReadOK(tif, &dircount, 2)) {
299 TIFFErrorExt(tif->tif_clientdata, module,
300 "Error fetching directory count");
301 return (0);
302 }
303 if (tif->tif_flags & TIFF_SWAB)
304 TIFFSwabShort(&dircount);
305 (void) TIFFSeekFile(tif,
306 nextdir+2+dircount*12, SEEK_SET);
307 if (!ReadOK(tif, &nextnextdir, 4)) {
308 TIFFErrorExt(tif->tif_clientdata, module,
309 "Error fetching directory link");
310 return (0);
311 }
312 if (tif->tif_flags & TIFF_SWAB)
313 TIFFSwabLong(&nextnextdir);
314 if (nextnextdir==tif->tif_diroff)
315 {
316 uint32 m;
317 m=0;
318 (void) TIFFSeekFile(tif,
319 nextdir+2+dircount*12, SEEK_SET);
320 if (!WriteOK(tif, &m, 4)) {
321 TIFFErrorExt(tif->tif_clientdata, module,
322 "Error writing directory link");
323 return (0);
324 }
325 tif->tif_diroff=0;
326 break;
327 }
328 nextdir=nextnextdir;
329 }
330 }
331 }
332 else
333 {
334 if (tif->tif_header.big.tiff_diroff == tif->tif_diroff)
335 {
336 tif->tif_header.big.tiff_diroff = 0;
337 tif->tif_diroff = 0;
338
339 TIFFSeekFile(tif,8,SEEK_SET);
340 if (!WriteOK(tif, &(tif->tif_header.big.tiff_diroff),8))
341 {
342 TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
343 "Error updating TIFF header");
344 return (0);
345 }
346 }
347 else
348 {
349 uint64 nextdir;
350 nextdir = tif->tif_header.big.tiff_diroff;
351 while(1) {
352 uint64 dircount64;
353 uint16 dircount;
354 uint64 nextnextdir;
355
356 if (!SeekOK(tif, nextdir) ||
357 !ReadOK(tif, &dircount64, 8)) {
358 TIFFErrorExt(tif->tif_clientdata, module,
359 "Error fetching directory count");
360 return (0);
361 }
362 if (tif->tif_flags & TIFF_SWAB)
363 TIFFSwabLong8(&dircount64);
364 if (dircount64>0xFFFF)
365 {
366 TIFFErrorExt(tif->tif_clientdata, module,
367 "Sanity check on tag count failed, likely corrupt TIFF");
368 return (0);
369 }
370 dircount=(uint16)dircount64;
371 (void) TIFFSeekFile(tif,
372 nextdir+8+dircount*20, SEEK_SET);
373 if (!ReadOK(tif, &nextnextdir, 8)) {
374 TIFFErrorExt(tif->tif_clientdata, module,
375 "Error fetching directory link");
376 return (0);
377 }
378 if (tif->tif_flags & TIFF_SWAB)
379 TIFFSwabLong8(&nextnextdir);
380 if (nextnextdir==tif->tif_diroff)
381 {
382 uint64 m;
383 m=0;
384 (void) TIFFSeekFile(tif,
385 nextdir+8+dircount*20, SEEK_SET);
386 if (!WriteOK(tif, &m, 8)) {
387 TIFFErrorExt(tif->tif_clientdata, module,
388 "Error writing directory link");
389 return (0);
390 }
391 tif->tif_diroff=0;
392 break;
393 }
394 nextdir=nextnextdir;
395 }
396 }
397 }
398
399 /*
400 * Now use TIFFWriteDirectory() normally.
401 */
402
403 return TIFFWriteDirectory( tif );
404 }
405
406 static int
407 TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff)
408 {
409 static const char module[] = "TIFFWriteDirectorySec";
410 uint32 ndir;
411 TIFFDirEntry* dir;
412 uint32 dirsize;
413 void* dirmem;
414 uint32 m;
415 if (tif->tif_mode == O_RDONLY)
416 return (1);
417
418 _TIFFFillStriles( tif );
419
420 /*
421 * Clear write state so that subsequent images with
422 * different characteristics get the right buffers
423 * setup for them.
424 */
425 if (imagedone)
426 {
427 if (tif->tif_flags & TIFF_POSTENCODE)
428 {
429 tif->tif_flags &= ~TIFF_POSTENCODE;
430 if (!(*tif->tif_postencode)(tif))
431 {
432 TIFFErrorExt(tif->tif_clientdata,module,
433 "Error post-encoding before directory write");
434 return (0);
435 }
436 }
437 (*tif->tif_close)(tif); /* shutdown encoder */
438 /*
439 * Flush any data that might have been written
440 * by the compression close+cleanup routines. But
441 * be careful not to write stuff if we didn't add data
442 * in the previous steps as the "rawcc" data may well be
443 * a previously read tile/strip in mixed read/write mode.
444 */
445 if (tif->tif_rawcc > 0
446 && (tif->tif_flags & TIFF_BEENWRITING) != 0 )
447 {
448 if( !TIFFFlushData1(tif) )
449 {
450 TIFFErrorExt(tif->tif_clientdata, module,
451 "Error flushing data before directory write");
452 return (0);
453 }
454 }
455 if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata)
456 {
457 _TIFFfree(tif->tif_rawdata);
458 tif->tif_rawdata = NULL;
459 tif->tif_rawcc = 0;
460 tif->tif_rawdatasize = 0;
461 tif->tif_rawdataoff = 0;
462 tif->tif_rawdataloaded = 0;
463 }
464 tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP);
465 }
466 dir=NULL;
467 dirmem=NULL;
468 dirsize=0;
469 while (1)
470 {
471 ndir=0;
472 if (isimage)
473 {
474 if (TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS))
475 {
476 if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGEWIDTH,tif->tif_dir.td_imagewidth))
477 goto bad;
478 if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGELENGTH,tif->tif_dir.td_imagelength))
479 goto bad;
480 }
481 if (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS))
482 {
483 if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILEWIDTH,tif->tif_dir.td_tilewidth))
484 goto bad;
485 if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILELENGTH,tif->tif_dir.td_tilelength))
486 goto bad;
487 }
488 if (TIFFFieldSet(tif,FIELD_RESOLUTION))
489 {
490 if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XRESOLUTION,tif->tif_dir.td_xresolution))
491 goto bad;
492 if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YRESOLUTION,tif->tif_dir.td_yresolution))
493 goto bad;
494 }
495 if (TIFFFieldSet(tif,FIELD_POSITION))
496 {
497 if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XPOSITION,tif->tif_dir.td_xposition))
498 goto bad;
499 if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YPOSITION,tif->tif_dir.td_yposition))
500 goto bad;
501 }
502 if (TIFFFieldSet(tif,FIELD_SUBFILETYPE))
503 {
504 if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_SUBFILETYPE,tif->tif_dir.td_subfiletype))
505 goto bad;
506 }
507 if (TIFFFieldSet(tif,FIELD_BITSPERSAMPLE))
508 {
509 if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_BITSPERSAMPLE,tif->tif_dir.td_bitspersample))
510 goto bad;
511 }
512 if (TIFFFieldSet(tif,FIELD_COMPRESSION))
513 {
514 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_COMPRESSION,tif->tif_dir.td_compression))
515 goto bad;
516 }
517 if (TIFFFieldSet(tif,FIELD_PHOTOMETRIC))
518 {
519 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PHOTOMETRIC,tif->tif_dir.td_photometric))
520 goto bad;
521 }
522 if (TIFFFieldSet(tif,FIELD_THRESHHOLDING))
523 {
524 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_THRESHHOLDING,tif->tif_dir.td_threshholding))
525 goto bad;
526 }
527 if (TIFFFieldSet(tif,FIELD_FILLORDER))
528 {
529 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_FILLORDER,tif->tif_dir.td_fillorder))
530 goto bad;
531 }
532 if (TIFFFieldSet(tif,FIELD_ORIENTATION))
533 {
534 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_ORIENTATION,tif->tif_dir.td_orientation))
535 goto bad;
536 }
537 if (TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL))
538 {
539 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_SAMPLESPERPIXEL,tif->tif_dir.td_samplesperpixel))
540 goto bad;
541 }
542 if (TIFFFieldSet(tif,FIELD_ROWSPERSTRIP))
543 {
544 if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_ROWSPERSTRIP,tif->tif_dir.td_rowsperstrip))
545 goto bad;
546 }
547 if (TIFFFieldSet(tif,FIELD_MINSAMPLEVALUE))
548 {
549 if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MINSAMPLEVALUE,tif->tif_dir.td_minsamplevalue))
550 goto bad;
551 }
552 if (TIFFFieldSet(tif,FIELD_MAXSAMPLEVALUE))
553 {
554 if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MAXSAMPLEVALUE,tif->tif_dir.td_maxsamplevalue))
555 goto bad;
556 }
557 if (TIFFFieldSet(tif,FIELD_PLANARCONFIG))
558 {
559 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PLANARCONFIG,tif->tif_dir.td_planarconfig))
560 goto bad;
561 }
562 if (TIFFFieldSet(tif,FIELD_RESOLUTIONUNIT))
563 {
564 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_RESOLUTIONUNIT,tif->tif_dir.td_resolutionunit))
565 goto bad;
566 }
567 if (TIFFFieldSet(tif,FIELD_PAGENUMBER))
568 {
569 if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_PAGENUMBER,2,&tif->tif_dir.td_pagenumber[0]))
570 goto bad;
571 }
572 if (TIFFFieldSet(tif,FIELD_STRIPBYTECOUNTS))
573 {
574 if (!isTiled(tif))
575 {
576 if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount_p))
577 goto bad;
578 }
579 else
580 {
581 if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount_p))
582 goto bad;
583 }
584 }
585 if (TIFFFieldSet(tif,FIELD_STRIPOFFSETS))
586 {
587 if (!isTiled(tif))
588 {
589 /* td_stripoffset_p might be NULL in an odd OJPEG case. See
590 * tif_dirread.c around line 3634.
591 * XXX: OJPEG hack.
592 * If a) compression is OJPEG, b) it's not a tiled TIFF,
593 * and c) the number of strips is 1,
594 * then we tolerate the absence of stripoffsets tag,
595 * because, presumably, all required data is in the
596 * JpegInterchangeFormat stream.
597 * We can get here when using tiffset on such a file.
598 * See http://bugzilla.maptools.org/show_bug.cgi?id=2500
599 */
600 if (tif->tif_dir.td_stripoffset_p != NULL &&
601 !TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset_p))
602 goto bad;
603 }
604 else
605 {
606 if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset_p))
607 goto bad;
608 }
609 }
610 if (TIFFFieldSet(tif,FIELD_COLORMAP))
611 {
612 if (!TIFFWriteDirectoryTagColormap(tif,&ndir,dir))
613 goto bad;
614 }
615 if (TIFFFieldSet(tif,FIELD_EXTRASAMPLES))
616 {
617 if (tif->tif_dir.td_extrasamples)
618 {
619 uint16 na;
620 uint16* nb;
621 TIFFGetFieldDefaulted(tif,TIFFTAG_EXTRASAMPLES,&na,&nb);
622 if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_EXTRASAMPLES,na,nb))
623 goto bad;
624 }
625 }
626 if (TIFFFieldSet(tif,FIELD_SAMPLEFORMAT))
627 {
628 if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_SAMPLEFORMAT,tif->tif_dir.td_sampleformat))
629 goto bad;
630 }
631 if (TIFFFieldSet(tif,FIELD_SMINSAMPLEVALUE))
632 {
633 if (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMINSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_sminsamplevalue))
634 goto bad;
635 }
636 if (TIFFFieldSet(tif,FIELD_SMAXSAMPLEVALUE))
637 {
638 if (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMAXSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_smaxsamplevalue))
639 goto bad;
640 }
641 if (TIFFFieldSet(tif,FIELD_IMAGEDEPTH))
642 {
643 if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_IMAGEDEPTH,tif->tif_dir.td_imagedepth))
644 goto bad;
645 }
646 if (TIFFFieldSet(tif,FIELD_TILEDEPTH))
647 {
648 if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_TILEDEPTH,tif->tif_dir.td_tiledepth))
649 goto bad;
650 }
651 if (TIFFFieldSet(tif,FIELD_HALFTONEHINTS))
652 {
653 if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_HALFTONEHINTS,2,&tif->tif_dir.td_halftonehints[0]))
654 goto bad;
655 }
656 if (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING))
657 {
658 if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_YCBCRSUBSAMPLING,2,&tif->tif_dir.td_ycbcrsubsampling[0]))
659 goto bad;
660 }
661 if (TIFFFieldSet(tif,FIELD_YCBCRPOSITIONING))
662 {
663 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_YCBCRPOSITIONING,tif->tif_dir.td_ycbcrpositioning))
664 goto bad;
665 }
666 if (TIFFFieldSet(tif,FIELD_REFBLACKWHITE))
667 {
668 if (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,TIFFTAG_REFERENCEBLACKWHITE,6,tif->tif_dir.td_refblackwhite))
669 goto bad;
670 }
671 if (TIFFFieldSet(tif,FIELD_TRANSFERFUNCTION))
672 {
673 if (!TIFFWriteDirectoryTagTransferfunction(tif,&ndir,dir))
674 goto bad;
675 }
676 if (TIFFFieldSet(tif,FIELD_INKNAMES))
677 {
678 if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,TIFFTAG_INKNAMES,tif->tif_dir.td_inknameslen,tif->tif_dir.td_inknames))
679 goto bad;
680 }
681 if (TIFFFieldSet(tif,FIELD_SUBIFD))
682 {
683 if (!TIFFWriteDirectoryTagSubifd(tif,&ndir,dir))
684 goto bad;
685 }
686 {
687 uint32 n;
688 for (n=0; n<tif->tif_nfields; n++) {
689 const TIFFField* o;
690 o = tif->tif_fields[n];
691 if ((o->field_bit>=FIELD_CODEC)&&(TIFFFieldSet(tif,o->field_bit)))
692 {
693 switch (o->get_field_type)
694 {
695 case TIFF_SETGET_ASCII:
696 {
697 uint32 pa;
698 char* pb;
699 assert(o->field_type==TIFF_ASCII);
700 assert(o->field_readcount==TIFF_VARIABLE);
701 assert(o->field_passcount==0);
702 TIFFGetField(tif,o->field_tag,&pb);
703 pa=(uint32)(strlen(pb));
704 if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,(uint16)o->field_tag,pa,pb))
705 goto bad;
706 }
707 break;
708 case TIFF_SETGET_UINT16:
709 {
710 uint16 p;
711 assert(o->field_type==TIFF_SHORT);
712 assert(o->field_readcount==1);
713 assert(o->field_passcount==0);
714 TIFFGetField(tif,o->field_tag,&p);
715 if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,(uint16)o->field_tag,p))
716 goto bad;
717 }
718 break;
719 case TIFF_SETGET_UINT32:
720 {
721 uint32 p;
722 assert(o->field_type==TIFF_LONG);
723 assert(o->field_readcount==1);
724 assert(o->field_passcount==0);
725 TIFFGetField(tif,o->field_tag,&p);
726 if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,(uint16)o->field_tag,p))
727 goto bad;
728 }
729 break;
730 case TIFF_SETGET_C32_UINT8:
731 {
732 uint32 pa;
733 void* pb;
734 assert(o->field_type==TIFF_UNDEFINED);
735 assert(o->field_readcount==TIFF_VARIABLE2);
736 assert(o->field_passcount==1);
737 TIFFGetField(tif,o->field_tag,&pa,&pb);
738 if (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,(uint16)o->field_tag,pa,pb))
739 goto bad;
740 }
741 break;
742 default:
743 TIFFErrorExt(tif->tif_clientdata,module,
744 "Cannot write tag %d (%s)",
745 TIFFFieldTag(o),
746 o->field_name ? o->field_name : "unknown");
747 goto bad;
748 }
749 }
750 }
751 }
752 }
753 for (m=0; m<(uint32)(tif->tif_dir.td_customValueCount); m++)
754 {
755 uint16 tag = (uint16)tif->tif_dir.td_customValues[m].info->field_tag;
756 uint32 count = tif->tif_dir.td_customValues[m].count;
757 switch (tif->tif_dir.td_customValues[m].info->field_type)
758 {
759 case TIFF_ASCII:
760 if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
761 goto bad;
762 break;
763 case TIFF_UNDEFINED:
764 if (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
765 goto bad;
766 break;
767 case TIFF_BYTE:
768 if (!TIFFWriteDirectoryTagByteArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
769 goto bad;
770 break;
771 case TIFF_SBYTE:
772 if (!TIFFWriteDirectoryTagSbyteArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
773 goto bad;
774 break;
775 case TIFF_SHORT:
776 if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
777 goto bad;
778 break;
779 case TIFF_SSHORT:
780 if (!TIFFWriteDirectoryTagSshortArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
781 goto bad;
782 break;
783 case TIFF_LONG:
784 if (!TIFFWriteDirectoryTagLongArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
785 goto bad;
786 break;
787 case TIFF_SLONG:
788 if (!TIFFWriteDirectoryTagSlongArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
789 goto bad;
790 break;
791 case TIFF_LONG8:
792 if (!TIFFWriteDirectoryTagLong8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
793 goto bad;
794 break;
795 case TIFF_SLONG8:
796 if (!TIFFWriteDirectoryTagSlong8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
797 goto bad;
798 break;
799 case TIFF_RATIONAL:
800 if (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
801 goto bad;
802 break;
803 case TIFF_SRATIONAL:
804 if (!TIFFWriteDirectoryTagSrationalArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
805 goto bad;
806 break;
807 case TIFF_FLOAT:
808 if (!TIFFWriteDirectoryTagFloatArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
809 goto bad;
810 break;
811 case TIFF_DOUBLE:
812 if (!TIFFWriteDirectoryTagDoubleArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
813 goto bad;
814 break;
815 case TIFF_IFD:
816 if (!TIFFWriteDirectoryTagIfdArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
817 goto bad;
818 break;
819 case TIFF_IFD8:
820 if (!TIFFWriteDirectoryTagIfdIfd8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
821 goto bad;
822 break;
823 default:
824 assert(0); /* we should never get here */
825 break;
826 }
827 }
828 if (dir!=NULL)
829 break;
830 dir=_TIFFmalloc(ndir*sizeof(TIFFDirEntry));
831 if (dir==NULL)
832 {
833 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
834 goto bad;
835 }
836 if (isimage)
837 {
838 if ((tif->tif_diroff==0)&&(!TIFFLinkDirectory(tif)))
839 goto bad;
840 }
841 else
842 tif->tif_diroff=(TIFFSeekFile(tif,0,SEEK_END)+1)&(~((toff_t)1));
843 if (pdiroff!=NULL)
844 *pdiroff=tif->tif_diroff;
845 if (!(tif->tif_flags&TIFF_BIGTIFF))
846 dirsize=2+ndir*12+4;
847 else
848 dirsize=8+ndir*20+8;
849 tif->tif_dataoff=tif->tif_diroff+dirsize;
850 if (!(tif->tif_flags&TIFF_BIGTIFF))
851 tif->tif_dataoff=(uint32)tif->tif_dataoff;
852 if ((tif->tif_dataoff<tif->tif_diroff)||(tif->tif_dataoff<(uint64)dirsize))
853 {
854 TIFFErrorExt(tif->tif_clientdata,module,"Maximum TIFF file size exceeded");
855 goto bad;
856 }
857 if (tif->tif_dataoff&1)
858 tif->tif_dataoff++;
859 if (isimage)
860 tif->tif_curdir++;
861 }
862 if (isimage)
863 {
864 if (TIFFFieldSet(tif,FIELD_SUBIFD)&&(tif->tif_subifdoff==0))
865 {
866 uint32 na;
867 TIFFDirEntry* nb;
868 for (na=0, nb=dir; ; na++, nb++)
869 {
870 if( na == ndir )
871 {
872 TIFFErrorExt(tif->tif_clientdata,module,
873 "Cannot find SubIFD tag");
874 goto bad;
875 }
876 if (nb->tdir_tag==TIFFTAG_SUBIFD)
877 break;
878 }
879 if (!(tif->tif_flags&TIFF_BIGTIFF))
880 tif->tif_subifdoff=tif->tif_diroff+2+na*12+8;
881 else
882 tif->tif_subifdoff=tif->tif_diroff+8+na*20+12;
883 }
884 }
885 dirmem=_TIFFmalloc(dirsize);
886 if (dirmem==NULL)
887 {
888 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
889 goto bad;
890 }
891 if (!(tif->tif_flags&TIFF_BIGTIFF))
892 {
893 uint8* n;
894 uint32 nTmp;
895 TIFFDirEntry* o;
896 n=dirmem;
897 *(uint16*)n=(uint16)ndir;
898 if (tif->tif_flags&TIFF_SWAB)
899 TIFFSwabShort((uint16*)n);
900 n+=2;
901 o=dir;
902 for (m=0; m<ndir; m++)
903 {
904 *(uint16*)n=o->tdir_tag;
905 if (tif->tif_flags&TIFF_SWAB)
906 TIFFSwabShort((uint16*)n);
907 n+=2;
908 *(uint16*)n=o->tdir_type;
909 if (tif->tif_flags&TIFF_SWAB)
910 TIFFSwabShort((uint16*)n);
911 n+=2;
912 nTmp = (uint32)o->tdir_count;
913 _TIFFmemcpy(n,&nTmp,4);
914 if (tif->tif_flags&TIFF_SWAB)
915 TIFFSwabLong((uint32*)n);
916 n+=4;
917 /* This is correct. The data has been */
918 /* swabbed previously in TIFFWriteDirectoryTagData */
919 _TIFFmemcpy(n,&o->tdir_offset,4);
920 n+=4;
921 o++;
922 }
923 nTmp = (uint32)tif->tif_nextdiroff;
924 if (tif->tif_flags&TIFF_SWAB)
925 TIFFSwabLong(&nTmp);
926 _TIFFmemcpy(n,&nTmp,4);
927 }
928 else
929 {
930 uint8* n;
931 TIFFDirEntry* o;
932 n=dirmem;
933 *(uint64*)n=ndir;
934 if (tif->tif_flags&TIFF_SWAB)
935 TIFFSwabLong8((uint64*)n);
936 n+=8;
937 o=dir;
938 for (m=0; m<ndir; m++)
939 {
940 *(uint16*)n=o->tdir_tag;
941 if (tif->tif_flags&TIFF_SWAB)
942 TIFFSwabShort((uint16*)n);
943 n+=2;
944 *(uint16*)n=o->tdir_type;
945 if (tif->tif_flags&TIFF_SWAB)
946 TIFFSwabShort((uint16*)n);
947 n+=2;
948 _TIFFmemcpy(n,&o->tdir_count,8);
949 if (tif->tif_flags&TIFF_SWAB)
950 TIFFSwabLong8((uint64*)n);
951 n+=8;
952 _TIFFmemcpy(n,&o->tdir_offset,8);
953 n+=8;
954 o++;
955 }
956 _TIFFmemcpy(n,&tif->tif_nextdiroff,8);
957 if (tif->tif_flags&TIFF_SWAB)
958 TIFFSwabLong8((uint64*)n);
959 }
960 _TIFFfree(dir);
961 dir=NULL;
962 if (!SeekOK(tif,tif->tif_diroff))
963 {
964 TIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory");
965 goto bad;
966 }
967 if (!WriteOK(tif,dirmem,(tmsize_t)dirsize))
968 {
969 TIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory");
970 goto bad;
971 }
972 _TIFFfree(dirmem);
973 if (imagedone)
974 {
975 TIFFFreeDirectory(tif);
976 tif->tif_flags &= ~TIFF_DIRTYDIRECT;
977 tif->tif_flags &= ~TIFF_DIRTYSTRIP;
978 (*tif->tif_cleanup)(tif);
979 /*
980 * Reset directory-related state for subsequent
981 * directories.
982 */
983 TIFFCreateDirectory(tif);
984 }
985 return(1);
986 bad:
987 if (dir!=NULL)
988 _TIFFfree(dir);
989 if (dirmem!=NULL)
990 _TIFFfree(dirmem);
991 return(0);
992 }
993
994 static int8 TIFFClampDoubleToInt8( double val )
995 {
996 if( val > 127 )
997 return 127;
998 if( val < -128 || val != val )
999 return -128;
1000 return (int8)val;
1001 }
1002
1003 static int16 TIFFClampDoubleToInt16( double val )
1004 {
1005 if( val > 32767 )
1006 return 32767;
1007 if( val < -32768 || val != val )
1008 return -32768;
1009 return (int16)val;
1010 }
1011
1012 static int32 TIFFClampDoubleToInt32( double val )
1013 {
1014 if( val > 0x7FFFFFFF )
1015 return 0x7FFFFFFF;
1016 if( val < -0x7FFFFFFF-1 || val != val )
1017 return -0x7FFFFFFF-1;
1018 return (int32)val;
1019 }
1020
1021 static uint8 TIFFClampDoubleToUInt8( double val )
1022 {
1023 if( val < 0 )
1024 return 0;
1025 if( val > 255 || val != val )
1026 return 255;
1027 return (uint8)val;
1028 }
1029
1030 static uint16 TIFFClampDoubleToUInt16( double val )
1031 {
1032 if( val < 0 )
1033 return 0;
1034 if( val > 65535 || val != val )
1035 return 65535;
1036 return (uint16)val;
1037 }
1038
1039 static uint32 TIFFClampDoubleToUInt32( double val )
1040 {
1041 if( val < 0 )
1042 return 0;
1043 if( val > 0xFFFFFFFFU || val != val )
1044 return 0xFFFFFFFFU;
1045 return (uint32)val;
1046 }
1047
1048 static int
1049 TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
1050 {
1051 static const char module[] = "TIFFWriteDirectoryTagSampleformatArray";
1052 void* conv;
1053 uint32 i;
1054 int ok;
1055 conv = _TIFFmalloc(count*sizeof(double));
1056 if (conv == NULL)
1057 {
1058 TIFFErrorExt(tif->tif_clientdata, module, "Out of memory");
1059 return (0);
1060 }
1061
1062 switch (tif->tif_dir.td_sampleformat)
1063 {
1064 case SAMPLEFORMAT_IEEEFP:
1065 if (tif->tif_dir.td_bitspersample<=32)
1066 {
1067 for (i = 0; i < count; ++i)
1068 ((float*)conv)[i] = _TIFFClampDoubleToFloat(value[i]);
1069 ok = TIFFWriteDirectoryTagFloatArray(tif,ndir,dir,tag,count,(float*)conv);
1070 }
1071 else
1072 {
1073 ok = TIFFWriteDirectoryTagDoubleArray(tif,ndir,dir,tag,count,value);
1074 }
1075 break;
1076 case SAMPLEFORMAT_INT:
1077 if (tif->tif_dir.td_bitspersample<=8)
1078 {
1079 for (i = 0; i < count; ++i)
1080 ((int8*)conv)[i] = TIFFClampDoubleToInt8(value[i]);
1081 ok = TIFFWriteDirectoryTagSbyteArray(tif,ndir,dir,tag,count,(int8*)conv);
1082 }
1083 else if (tif->tif_dir.td_bitspersample<=16)
1084 {
1085 for (i = 0; i < count; ++i)
1086 ((int16*)conv)[i] = TIFFClampDoubleToInt16(value[i]);
1087 ok = TIFFWriteDirectoryTagSshortArray(tif,ndir,dir,tag,count,(int16*)conv);
1088 }
1089 else
1090 {
1091 for (i = 0; i < count; ++i)
1092 ((int32*)conv)[i] = TIFFClampDoubleToInt32(value[i]);
1093 ok = TIFFWriteDirectoryTagSlongArray(tif,ndir,dir,tag,count,(int32*)conv);
1094 }
1095 break;
1096 case SAMPLEFORMAT_UINT:
1097 if (tif->tif_dir.td_bitspersample<=8)
1098 {
1099 for (i = 0; i < count; ++i)
1100 ((uint8*)conv)[i] = TIFFClampDoubleToUInt8(value[i]);
1101 ok = TIFFWriteDirectoryTagByteArray(tif,ndir,dir,tag,count,(uint8*)conv);
1102 }
1103 else if (tif->tif_dir.td_bitspersample<=16)
1104 {
1105 for (i = 0; i < count; ++i)
1106 ((uint16*)conv)[i] = TIFFClampDoubleToUInt16(value[i]);
1107 ok = TIFFWriteDirectoryTagShortArray(tif,ndir,dir,tag,count,(uint16*)conv);
1108 }
1109 else
1110 {
1111 for (i = 0; i < count; ++i)
1112 ((uint32*)conv)[i] = TIFFClampDoubleToUInt32(value[i]);
1113 ok = TIFFWriteDirectoryTagLongArray(tif,ndir,dir,tag,count,(uint32*)conv);
1114 }
1115 break;
1116 default:
1117 ok = 0;
1118 }
1119
1120 _TIFFfree(conv);
1121 return (ok);
1122 }
1123
1124 #if 0
1125 static int
1126 TIFFWriteDirectoryTagSampleformatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
1127 {
1128 switch (tif->tif_dir.td_sampleformat)
1129 {
1130 case SAMPLEFORMAT_IEEEFP:
1131 if (tif->tif_dir.td_bitspersample<=32)
1132 return(TIFFWriteDirectoryTagFloatPerSample(tif,ndir,dir,tag,(float)value));
1133 else
1134 return(TIFFWriteDirectoryTagDoublePerSample(tif,ndir,dir,tag,value));
1135 case SAMPLEFORMAT_INT:
1136 if (tif->tif_dir.td_bitspersample<=8)
1137 return(TIFFWriteDirectoryTagSbytePerSample(tif,ndir,dir,tag,(int8)value));
1138 else if (tif->tif_dir.td_bitspersample<=16)
1139 return(TIFFWriteDirectoryTagSshortPerSample(tif,ndir,dir,tag,(int16)value));
1140 else
1141 return(TIFFWriteDirectoryTagSlongPerSample(tif,ndir,dir,tag,(int32)value));
1142 case SAMPLEFORMAT_UINT:
1143 if (tif->tif_dir.td_bitspersample<=8)
1144 return(TIFFWriteDirectoryTagBytePerSample(tif,ndir,dir,tag,(uint8)value));
1145 else if (tif->tif_dir.td_bitspersample<=16)
1146 return(TIFFWriteDirectoryTagShortPerSample(tif,ndir,dir,tag,(uint16)value));
1147 else
1148 return(TIFFWriteDirectoryTagLongPerSample(tif,ndir,dir,tag,(uint32)value));
1149 default:
1150 return(1);
1151 }
1152 }
1153 #endif
1154
1155 static int
1156 TIFFWriteDirectoryTagAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, char* value)
1157 {
1158 if (dir==NULL)
1159 {
1160 (*ndir)++;
1161 return(1);
1162 }
1163 return(TIFFWriteDirectoryTagCheckedAscii(tif,ndir,dir,tag,count,value));
1164 }
1165
1166 static int
1167 TIFFWriteDirectoryTagUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value)
1168 {
1169 if (dir==NULL)
1170 {
1171 (*ndir)++;
1172 return(1);
1173 }
1174 return(TIFFWriteDirectoryTagCheckedUndefinedArray(tif,ndir,dir,tag,count,value));
1175 }
1176
1177 #ifdef notdef
1178 static int
1179 TIFFWriteDirectoryTagByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value)
1180 {
1181 if (dir==NULL)
1182 {
1183 (*ndir)++;
1184 return(1);
1185 }
1186 return(TIFFWriteDirectoryTagCheckedByte(tif,ndir,dir,tag,value));
1187 }
1188 #endif
1189
1190 static int
1191 TIFFWriteDirectoryTagByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value)
1192 {
1193 if (dir==NULL)
1194 {
1195 (*ndir)++;
1196 return(1);
1197 }
1198 return(TIFFWriteDirectoryTagCheckedByteArray(tif,ndir,dir,tag,count,value));
1199 }
1200
1201 #if 0
1202 static int
1203 TIFFWriteDirectoryTagBytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value)
1204 {
1205 static const char module[] = "TIFFWriteDirectoryTagBytePerSample";
1206 uint8* m;
1207 uint8* na;
1208 uint16 nb;
1209 int o;
1210 if (dir==NULL)
1211 {
1212 (*ndir)++;
1213 return(1);
1214 }
1215 m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint8));
1216 if (m==NULL)
1217 {
1218 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1219 return(0);
1220 }
1221 for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
1222 *na=value;
1223 o=TIFFWriteDirectoryTagCheckedByteArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
1224 _TIFFfree(m);
1225 return(o);
1226 }
1227 #endif
1228
1229 #ifdef notdef
1230 static int
1231 TIFFWriteDirectoryTagSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value)
1232 {
1233 if (dir==NULL)
1234 {
1235 (*ndir)++;
1236 return(1);
1237 }
1238 return(TIFFWriteDirectoryTagCheckedSbyte(tif,ndir,dir,tag,value));
1239 }
1240 #endif
1241
1242 static int
1243 TIFFWriteDirectoryTagSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int8* value)
1244 {
1245 if (dir==NULL)
1246 {
1247 (*ndir)++;
1248 return(1);
1249 }
1250 return(TIFFWriteDirectoryTagCheckedSbyteArray(tif,ndir,dir,tag,count,value));
1251 }
1252
1253 #if 0
1254 static int
1255 TIFFWriteDirectoryTagSbytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value)
1256 {
1257 static const char module[] = "TIFFWriteDirectoryTagSbytePerSample";
1258 int8* m;
1259 int8* na;
1260 uint16 nb;
1261 int o;
1262 if (dir==NULL)
1263 {
1264 (*ndir)++;
1265 return(1);
1266 }
1267 m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int8));
1268 if (m==NULL)
1269 {
1270 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1271 return(0);
1272 }
1273 for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
1274 *na=value;
1275 o=TIFFWriteDirectoryTagCheckedSbyteArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
1276 _TIFFfree(m);
1277 return(o);
1278 }
1279 #endif
1280
1281 static int
1282 TIFFWriteDirectoryTagShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value)
1283 {
1284 if (dir==NULL)
1285 {
1286 (*ndir)++;
1287 return(1);
1288 }
1289 return(TIFFWriteDirectoryTagCheckedShort(tif,ndir,dir,tag,value));
1290 }
1291
1292 static int
1293 TIFFWriteDirectoryTagShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value)
1294 {
1295 if (dir==NULL)
1296 {
1297 (*ndir)++;
1298 return(1);
1299 }
1300 return(TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,count,value));
1301 }
1302
1303 static int
1304 TIFFWriteDirectoryTagShortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value)
1305 {
1306 static const char module[] = "TIFFWriteDirectoryTagShortPerSample";
1307 uint16* m;
1308 uint16* na;
1309 uint16 nb;
1310 int o;
1311 if (dir==NULL)
1312 {
1313 (*ndir)++;
1314 return(1);
1315 }
1316 m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint16));
1317 if (m==NULL)
1318 {
1319 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1320 return(0);
1321 }
1322 for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
1323 *na=value;
1324 o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
1325 _TIFFfree(m);
1326 return(o);
1327 }
1328
1329 #ifdef notdef
1330 static int
1331 TIFFWriteDirectoryTagSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value)
1332 {
1333 if (dir==NULL)
1334 {
1335 (*ndir)++;
1336 return(1);
1337 }
1338 return(TIFFWriteDirectoryTagCheckedSshort(tif,ndir,dir,tag,value));
1339 }
1340 #endif
1341
1342 static int
1343 TIFFWriteDirectoryTagSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int16* value)
1344 {
1345 if (dir==NULL)
1346 {
1347 (*ndir)++;
1348 return(1);
1349 }
1350 return(TIFFWriteDirectoryTagCheckedSshortArray(tif,ndir,dir,tag,count,value));
1351 }
1352
1353 #if 0
1354 static int
1355 TIFFWriteDirectoryTagSshortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value)
1356 {
1357 static const char module[] = "TIFFWriteDirectoryTagSshortPerSample";
1358 int16* m;
1359 int16* na;
1360 uint16 nb;
1361 int o;
1362 if (dir==NULL)
1363 {
1364 (*ndir)++;
1365 return(1);
1366 }
1367 m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int16));
1368 if (m==NULL)
1369 {
1370 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1371 return(0);
1372 }
1373 for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
1374 *na=value;
1375 o=TIFFWriteDirectoryTagCheckedSshortArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
1376 _TIFFfree(m);
1377 return(o);
1378 }
1379 #endif
1380
1381 static int
1382 TIFFWriteDirectoryTagLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value)
1383 {
1384 if (dir==NULL)
1385 {
1386 (*ndir)++;
1387 return(1);
1388 }
1389 return(TIFFWriteDirectoryTagCheckedLong(tif,ndir,dir,tag,value));
1390 }
1391
1392 static int
1393 TIFFWriteDirectoryTagLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)
1394 {
1395 if (dir==NULL)
1396 {
1397 (*ndir)++;
1398 return(1);
1399 }
1400 return(TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,value));
1401 }
1402
1403 #if 0
1404 static int
1405 TIFFWriteDirectoryTagLongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value)
1406 {
1407 static const char module[] = "TIFFWriteDirectoryTagLongPerSample";
1408 uint32* m;
1409 uint32* na;
1410 uint16 nb;
1411 int o;
1412 if (dir==NULL)
1413 {
1414 (*ndir)++;
1415 return(1);
1416 }
1417 m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint32));
1418 if (m==NULL)
1419 {
1420 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1421 return(0);
1422 }
1423 for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
1424 *na=value;
1425 o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
1426 _TIFFfree(m);
1427 return(o);
1428 }
1429 #endif
1430
1431 #ifdef notdef
1432 static int
1433 TIFFWriteDirectoryTagSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value)
1434 {
1435 if (dir==NULL)
1436 {
1437 (*ndir)++;
1438 return(1);
1439 }
1440 return(TIFFWriteDirectoryTagCheckedSlong(tif,ndir,dir,tag,value));
1441 }
1442 #endif
1443
1444 static int
1445 TIFFWriteDirectoryTagSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value)
1446 {
1447 if (dir==NULL)
1448 {
1449 (*ndir)++;
1450 return(1);
1451 }
1452 return(TIFFWriteDirectoryTagCheckedSlongArray(tif,ndir,dir,tag,count,value));
1453 }
1454
1455 #if 0
1456 static int
1457 TIFFWriteDirectoryTagSlongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value)
1458 {
1459 static const char module[] = "TIFFWriteDirectoryTagSlongPerSample";
1460 int32* m;
1461 int32* na;
1462 uint16 nb;
1463 int o;
1464 if (dir==NULL)
1465 {
1466 (*ndir)++;
1467 return(1);
1468 }
1469 m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int32));
1470 if (m==NULL)
1471 {
1472 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1473 return(0);
1474 }
1475 for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
1476 *na=value;
1477 o=TIFFWriteDirectoryTagCheckedSlongArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
1478 _TIFFfree(m);
1479 return(o);
1480 }
1481 #endif
1482
1483 #ifdef notdef
1484 static int
1485 TIFFWriteDirectoryTagLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint64 value)
1486 {
1487 if (dir==NULL)
1488 {
1489 (*ndir)++;
1490 return(1);
1491 }
1492 return(TIFFWriteDirectoryTagCheckedLong8(tif,ndir,dir,tag,value));
1493 }
1494 #endif
1495
1496 static int
1497 TIFFWriteDirectoryTagLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
1498 {
1499 if (dir==NULL)
1500 {
1501 (*ndir)++;
1502 return(1);
1503 }
1504 return(TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir,tag,count,value));
1505 }
1506
1507 #ifdef notdef
1508 static int
1509 TIFFWriteDirectoryTagSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int64 value)
1510 {
1511 if (dir==NULL)
1512 {
1513 (*ndir)++;
1514 return(1);
1515 }
1516 return(TIFFWriteDirectoryTagCheckedSlong8(tif,ndir,dir,tag,value));
1517 }
1518 #endif
1519
1520 static int
1521 TIFFWriteDirectoryTagSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int64* value)
1522 {
1523 if (dir==NULL)
1524 {
1525 (*ndir)++;
1526 return(1);
1527 }
1528 return(TIFFWriteDirectoryTagCheckedSlong8Array(tif,ndir,dir,tag,count,value));
1529 }
1530
1531 static int
1532 TIFFWriteDirectoryTagRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
1533 {
1534 if (dir==NULL)
1535 {
1536 (*ndir)++;
1537 return(1);
1538 }
1539 return(TIFFWriteDirectoryTagCheckedRational(tif,ndir,dir,tag,value));
1540 }
1541
1542 static int
1543 TIFFWriteDirectoryTagRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
1544 {
1545 if (dir==NULL)
1546 {
1547 (*ndir)++;
1548 return(1);
1549 }
1550 return(TIFFWriteDirectoryTagCheckedRationalArray(tif,ndir,dir,tag,count,value));
1551 }
1552
1553 static int
1554 TIFFWriteDirectoryTagSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
1555 {
1556 if (dir==NULL)
1557 {
1558 (*ndir)++;
1559 return(1);
1560 }
1561 return(TIFFWriteDirectoryTagCheckedSrationalArray(tif,ndir,dir,tag,count,value));
1562 }
1563
1564 #ifdef notdef
1565 static int TIFFWriteDirectoryTagFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value)
1566 {
1567 if (dir==NULL)
1568 {
1569 (*ndir)++;
1570 return(1);
1571 }
1572 return(TIFFWriteDirectoryTagCheckedFloat(tif,ndir,dir,tag,value));
1573 }
1574 #endif
1575
1576 static int TIFFWriteDirectoryTagFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
1577 {
1578 if (dir==NULL)
1579 {
1580 (*ndir)++;
1581 return(1);
1582 }
1583 return(TIFFWriteDirectoryTagCheckedFloatArray(tif,ndir,dir,tag,count,value));
1584 }
1585
1586 #if 0
1587 static int TIFFWriteDirectoryTagFloatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value)
1588 {
1589 static const char module[] = "TIFFWriteDirectoryTagFloatPerSample";
1590 float* m;
1591 float* na;
1592 uint16 nb;
1593 int o;
1594 if (dir==NULL)
1595 {
1596 (*ndir)++;
1597 return(1);
1598 }
1599 m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(float));
1600 if (m==NULL)
1601 {
1602 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1603 return(0);
1604 }
1605 for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
1606 *na=value;
1607 o=TIFFWriteDirectoryTagCheckedFloatArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
1608 _TIFFfree(m);
1609 return(o);
1610 }
1611 #endif
1612
1613 #ifdef notdef
1614 static int TIFFWriteDirectoryTagDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
1615 {
1616 if (dir==NULL)
1617 {
1618 (*ndir)++;
1619 return(1);
1620 }
1621 return(TIFFWriteDirectoryTagCheckedDouble(tif,ndir,dir,tag,value));
1622 }
1623 #endif
1624
1625 static int TIFFWriteDirectoryTagDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
1626 {
1627 if (dir==NULL)
1628 {
1629 (*ndir)++;
1630 return(1);
1631 }
1632 return(TIFFWriteDirectoryTagCheckedDoubleArray(tif,ndir,dir,tag,count,value));
1633 }
1634
1635 #if 0
1636 static int TIFFWriteDirectoryTagDoublePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
1637 {
1638 static const char module[] = "TIFFWriteDirectoryTagDoublePerSample";
1639 double* m;
1640 double* na;
1641 uint16 nb;
1642 int o;
1643 if (dir==NULL)
1644 {
1645 (*ndir)++;
1646 return(1);
1647 }
1648 m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(double));
1649 if (m==NULL)
1650 {
1651 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1652 return(0);
1653 }
1654 for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
1655 *na=value;
1656 o=TIFFWriteDirectoryTagCheckedDoubleArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
1657 _TIFFfree(m);
1658 return(o);
1659 }
1660 #endif
1661
1662 static int
1663 TIFFWriteDirectoryTagIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)
1664 {
1665 if (dir==NULL)
1666 {
1667 (*ndir)++;
1668 return(1);
1669 }
1670 return(TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,tag,count,value));
1671 }
1672
1673 #ifdef notdef
1674 static int
1675 TIFFWriteDirectoryTagIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
1676 {
1677 if (dir==NULL)
1678 {
1679 (*ndir)++;
1680 return(1);
1681 }
1682 return(TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir,tag,count,value));
1683 }
1684 #endif
1685
1686 static int
1687 TIFFWriteDirectoryTagShortLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value)
1688 {
1689 if (dir==NULL)
1690 {
1691 (*ndir)++;
1692 return(1);
1693 }
1694 if (value<=0xFFFF)
1695 return(TIFFWriteDirectoryTagCheckedShort(tif,ndir,dir,tag,(uint16)value));
1696 else
1697 return(TIFFWriteDirectoryTagCheckedLong(tif,ndir,dir,tag,value));
1698 }
1699
1700 static int _WriteAsType(TIFF* tif, uint64 strile_size, uint64 uncompressed_threshold)
1701 {
1702 const uint16 compression = tif->tif_dir.td_compression;
1703 if ( compression == COMPRESSION_NONE )
1704 {
1705 return strile_size > uncompressed_threshold;
1706 }
1707 else if ( compression == COMPRESSION_JPEG ||
1708 compression == COMPRESSION_LZW ||
1709 compression == COMPRESSION_ADOBE_DEFLATE ||
1710 compression == COMPRESSION_LZMA ||
1711 compression == COMPRESSION_LERC ||
1712 compression == COMPRESSION_ZSTD ||
1713 compression == COMPRESSION_WEBP )
1714 {
1715 /* For a few select compression types, we assume that in the worst */
1716 /* case the compressed size will be 10 times the uncompressed size */
1717 /* This is overly pessismistic ! */
1718 return strile_size >= uncompressed_threshold / 10;
1719 }
1720 return 1;
1721 }
1722
1723 static int WriteAsLong8(TIFF* tif, uint64 strile_size)
1724 {
1725 return _WriteAsType(tif, strile_size, 0xFFFFFFFFU);
1726 }
1727
1728 static int WriteAsLong4(TIFF* tif, uint64 strile_size)
1729 {
1730 return _WriteAsType(tif, strile_size, 0xFFFFU);
1731 }
1732
1733 /************************************************************************/
1734 /* TIFFWriteDirectoryTagLongLong8Array() */
1735 /* */
1736 /* Write out LONG8 array and write a SHORT/LONG/LONG8 depending */
1737 /* on strile size and Classic/BigTIFF mode. */
1738 /************************************************************************/
1739
1740 static int
1741 TIFFWriteDirectoryTagLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
1742 {
1743 static const char module[] = "TIFFWriteDirectoryTagLongLong8Array";
1744 int o;
1745 int write_aslong4;
1746
1747 /* is this just a counting pass? */
1748 if (dir==NULL)
1749 {
1750 (*ndir)++;
1751 return(1);
1752 }
1753
1754 if( tif->tif_dir.td_deferstrilearraywriting )
1755 {
1756 return TIFFWriteDirectoryTagData(tif, ndir, dir, tag, TIFF_NOTYPE, 0, 0, NULL);
1757 }
1758
1759 if( tif->tif_flags&TIFF_BIGTIFF )
1760 {
1761 int write_aslong8 = 1;
1762 /* In the case of ByteCounts array, we may be able to write them on */
1763 /* LONG if the strip/tilesize is not too big. */
1764 /* Also do that for count > 1 in the case someone would want to create */
1765 /* a single-strip file with a growing height, in which case using */
1766 /* LONG8 will be safer. */
1767 if( count > 1 && tag == TIFFTAG_STRIPBYTECOUNTS )
1768 {
1769 write_aslong8 = WriteAsLong8(tif, TIFFStripSize64(tif));
1770 }
1771 else if( count > 1 && tag == TIFFTAG_TILEBYTECOUNTS )
1772 {
1773 write_aslong8 = WriteAsLong8(tif, TIFFTileSize64(tif));
1774 }
1775 if( write_aslong8 )
1776 {
1777 return TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir,
1778 tag,count,value);
1779 }
1780 }
1781
1782 write_aslong4 = 1;
1783 if( count > 1 && tag == TIFFTAG_STRIPBYTECOUNTS )
1784 {
1785 write_aslong4 = WriteAsLong4(tif, TIFFStripSize64(tif));
1786 }
1787 else if( count > 1 && tag == TIFFTAG_TILEBYTECOUNTS )
1788 {
1789 write_aslong4 = WriteAsLong4(tif, TIFFTileSize64(tif));
1790 }
1791 if( write_aslong4 )
1792 {
1793 /*
1794 ** For classic tiff we want to verify everything is in range for LONG
1795 ** and convert to long format.
1796 */
1797
1798 uint32* p = _TIFFmalloc(count*sizeof(uint32));
1799 uint32* q;
1800 uint64* ma;
1801 uint32 mb;
1802
1803 if (p==NULL)
1804 {
1805 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1806 return(0);
1807 }
1808
1809 for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)
1810 {
1811 if (*ma>0xFFFFFFFF)
1812 {
1813 TIFFErrorExt(tif->tif_clientdata,module,
1814 "Attempt to write value larger than 0xFFFFFFFF in LONG array.");
1815 _TIFFfree(p);
1816 return(0);
1817 }
1818 *q= (uint32)(*ma);
1819 }
1820
1821 o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,p);
1822 _TIFFfree(p);
1823 }
1824 else
1825 {
1826 uint16* p = _TIFFmalloc(count*sizeof(uint16));
1827 uint16* q;
1828 uint64* ma;
1829 uint32 mb;
1830
1831 if (p==NULL)
1832 {
1833 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1834 return(0);
1835 }
1836
1837 for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)
1838 {
1839 if (*ma>0xFFFF)
1840 {
1841 /* Should not happen normally given the check we did before */
1842 TIFFErrorExt(tif->tif_clientdata,module,
1843 "Attempt to write value larger than 0xFFFF in SHORT array.");
1844 _TIFFfree(p);
1845 return(0);
1846 }
1847 *q= (uint16)(*ma);
1848 }
1849
1850 o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,count,p);
1851 _TIFFfree(p);
1852 }
1853
1854 return(o);
1855 }
1856
1857 /************************************************************************/
1858 /* TIFFWriteDirectoryTagIfdIfd8Array() */
1859 /* */
1860 /* Write either IFD8 or IFD array depending on file type. */
1861 /************************************************************************/
1862
1863 static int
1864 TIFFWriteDirectoryTagIfdIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
1865 {
1866 static const char module[] = "TIFFWriteDirectoryTagIfdIfd8Array";
1867 uint64* ma;
1868 uint32 mb;
1869 uint32* p;
1870 uint32* q;
1871 int o;
1872
1873 /* is this just a counting pass? */
1874 if (dir==NULL)
1875 {
1876 (*ndir)++;
1877 return(1);
1878 }
1879
1880 /* We always write IFD8 for BigTIFF, no checking needed. */
1881 if( tif->tif_flags&TIFF_BIGTIFF )
1882 return TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir,
1883 tag,count,value);
1884
1885 /*
1886 ** For classic tiff we want to verify everything is in range for IFD
1887 ** and convert to long format.
1888 */
1889
1890 p = _TIFFmalloc(count*sizeof(uint32));
1891 if (p==NULL)
1892 {
1893 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1894 return(0);
1895 }
1896
1897 for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)
1898 {
1899 if (*ma>0xFFFFFFFF)
1900 {
1901 TIFFErrorExt(tif->tif_clientdata,module,
1902 "Attempt to write value larger than 0xFFFFFFFF in Classic TIFF file.");
1903 _TIFFfree(p);
1904 return(0);
1905 }
1906 *q= (uint32)(*ma);
1907 }
1908
1909 o=TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,tag,count,p);
1910 _TIFFfree(p);
1911
1912 return(o);
1913 }
1914
1915 #ifdef notdef
1916 static int
1917 TIFFWriteDirectoryTagShortLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
1918 {
1919 static const char module[] = "TIFFWriteDirectoryTagShortLongLong8Array";
1920 uint64* ma;
1921 uint32 mb;
1922 uint8 n;
1923 int o;
1924 if (dir==NULL)
1925 {
1926 (*ndir)++;
1927 return(1);
1928 }
1929 n=0;
1930 for (ma=value, mb=0; mb<count; ma++, mb++)
1931 {
1932 if ((n==0)&&(*ma>0xFFFF))
1933 n=1;
1934 if ((n==1)&&(*ma>0xFFFFFFFF))
1935 {
1936 n=2;
1937 break;
1938 }
1939 }
1940 if (n==0)
1941 {
1942 uint16* p;
1943 uint16* q;
1944 p=_TIFFmalloc(count*sizeof(uint16));
1945 if (p==NULL)
1946 {
1947 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1948 return(0);
1949 }
1950 for (ma=value, mb=0, q=p; mb<count; ma++, mb++, q++)
1951 *q=(uint16)(*ma);
1952 o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,count,p);
1953 _TIFFfree(p);
1954 }
1955 else if (n==1)
1956 {
1957 uint32* p;
1958 uint32* q;
1959 p=_TIFFmalloc(count*sizeof(uint32));
1960 if (p==NULL)
1961 {
1962 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1963 return(0);
1964 }
1965 for (ma=value, mb=0, q=p; mb<count; ma++, mb++, q++)
1966 *q=(uint32)(*ma);
1967 o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,p);
1968 _TIFFfree(p);
1969 }
1970 else
1971 {
1972 assert(n==2);
1973 o=TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir,tag,count,value);
1974 }
1975 return(o);
1976 }
1977 #endif
1978 static int
1979 TIFFWriteDirectoryTagColormap(TIFF* tif, uint32* ndir, TIFFDirEntry* dir)
1980 {
1981 static const char module[] = "TIFFWriteDirectoryTagColormap";
1982 uint32 m;
1983 uint16* n;
1984 int o;
1985 if (dir==NULL)
1986 {
1987 (*ndir)++;
1988 return(1);
1989 }
1990 m=(1<<tif->tif_dir.td_bitspersample);
1991 n=_TIFFmalloc(3*m*sizeof(uint16));
1992 if (n==NULL)
1993 {
1994 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
1995 return(0);
1996 }
1997 _TIFFmemcpy(&n[0],tif->tif_dir.td_colormap[0],m*sizeof(uint16));
1998 _TIFFmemcpy(&n[m],tif->tif_dir.td_colormap[1],m*sizeof(uint16));
1999 _TIFFmemcpy(&n[2*m],tif->tif_dir.td_colormap[2],m*sizeof(uint16));
2000 o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,TIFFTAG_COLORMAP,3*m,n);
2001 _TIFFfree(n);
2002 return(o);
2003 }
2004
2005 static int
2006 TIFFWriteDirectoryTagTransferfunction(TIFF* tif, uint32* ndir, TIFFDirEntry* dir)
2007 {
2008 static const char module[] = "TIFFWriteDirectoryTagTransferfunction";
2009 uint32 m;
2010 uint16 n;
2011 uint16* o;
2012 int p;
2013 if (dir==NULL)
2014 {
2015 (*ndir)++;
2016 return(1);
2017 }
2018 m=(1<<tif->tif_dir.td_bitspersample);
2019 n=tif->tif_dir.td_samplesperpixel-tif->tif_dir.td_extrasamples;
2020 /*
2021 * Check if the table can be written as a single column,
2022 * or if it must be written as 3 columns. Note that we
2023 * write a 3-column tag if there are 2 samples/pixel and
2024 * a single column of data won't suffice--hmm.
2025 */
2026 if (n>3)
2027 n=3;
2028 if (n==3)
2029 {
2030 if (tif->tif_dir.td_transferfunction[2] == NULL ||
2031 !_TIFFmemcmp(tif->tif_dir.td_transferfunction[0],tif->tif_dir.td_transferfunction[2],m*sizeof(uint16)))
2032 n=2;
2033 }
2034 if (n==2)
2035 {
2036 if (tif->tif_dir.td_transferfunction[1] == NULL ||
2037 !_TIFFmemcmp(tif->tif_dir.td_transferfunction[0],tif->tif_dir.td_transferfunction[1],m*sizeof(uint16)))
2038 n=1;
2039 }
2040 if (n==0)
2041 n=1;
2042 o=_TIFFmalloc(n*m*sizeof(uint16));
2043 if (o==NULL)
2044 {
2045 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
2046 return(0);
2047 }
2048 _TIFFmemcpy(&o[0],tif->tif_dir.td_transferfunction[0],m*sizeof(uint16));
2049 if (n>1)
2050 _TIFFmemcpy(&o[m],tif->tif_dir.td_transferfunction[1],m*sizeof(uint16));
2051 if (n>2)
2052 _TIFFmemcpy(&o[2*m],tif->tif_dir.td_transferfunction[2],m*sizeof(uint16));
2053 p=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,TIFFTAG_TRANSFERFUNCTION,n*m,o);
2054 _TIFFfree(o);
2055 return(p);
2056 }
2057
2058 static int
2059 TIFFWriteDirectoryTagSubifd(TIFF* tif, uint32* ndir, TIFFDirEntry* dir)
2060 {
2061 static const char module[] = "TIFFWriteDirectoryTagSubifd";
2062 uint64 m;
2063 int n;
2064 if (tif->tif_dir.td_nsubifd==0)
2065 return(1);
2066 if (dir==NULL)
2067 {
2068 (*ndir)++;
2069 return(1);
2070 }
2071 m=tif->tif_dataoff;
2072 if (!(tif->tif_flags&TIFF_BIGTIFF))
2073 {
2074 uint32* o;
2075 uint64* pa;
2076 uint32* pb;
2077 uint16 p;
2078 o=_TIFFmalloc(tif->tif_dir.td_nsubifd*sizeof(uint32));
2079 if (o==NULL)
2080 {
2081 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
2082 return(0);
2083 }
2084 pa=tif->tif_dir.td_subifd;
2085 pb=o;
2086 for (p=0; p < tif->tif_dir.td_nsubifd; p++)
2087 {
2088 assert(pa != 0);
2089
2090 /* Could happen if an classicTIFF has a SubIFD of type LONG8 (which is illegal) */
2091 if( *pa > 0xFFFFFFFFUL)
2092 {
2093 TIFFErrorExt(tif->tif_clientdata,module,"Illegal value for SubIFD tag");
2094 _TIFFfree(o);
2095 return(0);
2096 }
2097 *pb++=(uint32)(*pa++);
2098 }
2099 n=TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,TIFFTAG_SUBIFD,tif->tif_dir.td_nsubifd,o);
2100 _TIFFfree(o);
2101 }
2102 else
2103 n=TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir,TIFFTAG_SUBIFD,tif->tif_dir.td_nsubifd,tif->tif_dir.td_subifd);
2104 if (!n)
2105 return(0);
2106 /*
2107 * Total hack: if this directory includes a SubIFD
2108 * tag then force the next <n> directories to be
2109 * written as ``sub directories'' of this one. This
2110 * is used to write things like thumbnails and
2111 * image masks that one wants to keep out of the
2112 * normal directory linkage access mechanism.
2113 */
2114 tif->tif_flags|=TIFF_INSUBIFD;
2115 tif->tif_nsubifd=tif->tif_dir.td_nsubifd;
2116 if (tif->tif_dir.td_nsubifd==1)
2117 tif->tif_subifdoff=0;
2118 else
2119 tif->tif_subifdoff=m;
2120 return(1);
2121 }
2122
2123 static int
2124 TIFFWriteDirectoryTagCheckedAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, char* value)
2125 {
2126 assert(sizeof(char)==1);
2127 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_ASCII,count,count,value));
2128 }
2129
2130 static int
2131 TIFFWriteDirectoryTagCheckedUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value)
2132 {
2133 assert(sizeof(uint8)==1);
2134 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_UNDEFINED,count,count,value));
2135 }
2136
2137 #ifdef notdef
2138 static int
2139 TIFFWriteDirectoryTagCheckedByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value)
2140 {
2141 assert(sizeof(uint8)==1);
2142 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_BYTE,1,1,&value));
2143 }
2144 #endif
2145
2146 static int
2147 TIFFWriteDirectoryTagCheckedByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value)
2148 {
2149 assert(sizeof(uint8)==1);
2150 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_BYTE,count,count,value));
2151 }
2152
2153 #ifdef notdef
2154 static int
2155 TIFFWriteDirectoryTagCheckedSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value)
2156 {
2157 assert(sizeof(int8)==1);
2158 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SBYTE,1,1,&value));
2159 }
2160 #endif
2161
2162 static int
2163 TIFFWriteDirectoryTagCheckedSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int8* value)
2164 {
2165 assert(sizeof(int8)==1);
2166 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SBYTE,count,count,value));
2167 }
2168
2169 static int
2170 TIFFWriteDirectoryTagCheckedShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value)
2171 {
2172 uint16 m;
2173 assert(sizeof(uint16)==2);
2174 m=value;
2175 if (tif->tif_flags&TIFF_SWAB)
2176 TIFFSwabShort(&m);
2177 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SHORT,1,2,&m));
2178 }
2179
2180 static int
2181 TIFFWriteDirectoryTagCheckedShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value)
2182 {
2183 assert(count<0x80000000);
2184 assert(sizeof(uint16)==2);
2185 if (tif->tif_flags&TIFF_SWAB)
2186 TIFFSwabArrayOfShort(value,count);
2187 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SHORT,count,count*2,value));
2188 }
2189
2190 #ifdef notdef
2191 static int
2192 TIFFWriteDirectoryTagCheckedSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value)
2193 {
2194 int16 m;
2195 assert(sizeof(int16)==2);
2196 m=value;
2197 if (tif->tif_flags&TIFF_SWAB)
2198 TIFFSwabShort((uint16*)(&m));
2199 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SSHORT,1,2,&m));
2200 }
2201 #endif
2202
2203 static int
2204 TIFFWriteDirectoryTagCheckedSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int16* value)
2205 {
2206 assert(count<0x80000000);
2207 assert(sizeof(int16)==2);
2208 if (tif->tif_flags&TIFF_SWAB)
2209 TIFFSwabArrayOfShort((uint16*)value,count);
2210 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SSHORT,count,count*2,value));
2211 }
2212
2213 static int
2214 TIFFWriteDirectoryTagCheckedLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value)
2215 {
2216 uint32 m;
2217 assert(sizeof(uint32)==4);
2218 m=value;
2219 if (tif->tif_flags&TIFF_SWAB)
2220 TIFFSwabLong(&m);
2221 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG,1,4,&m));
2222 }
2223
2224 static int
2225 TIFFWriteDirectoryTagCheckedLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)
2226 {
2227 assert(count<0x40000000);
2228 assert(sizeof(uint32)==4);
2229 if (tif->tif_flags&TIFF_SWAB)
2230 TIFFSwabArrayOfLong(value,count);
2231 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG,count,count*4,value));
2232 }
2233
2234 #ifdef notdef
2235 static int
2236 TIFFWriteDirectoryTagCheckedSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value)
2237 {
2238 int32 m;
2239 assert(sizeof(int32)==4);
2240 m=value;
2241 if (tif->tif_flags&TIFF_SWAB)
2242 TIFFSwabLong((uint32*)(&m));
2243 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG,1,4,&m));
2244 }
2245 #endif
2246
2247 static int
2248 TIFFWriteDirectoryTagCheckedSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value)
2249 {
2250 assert(count<0x40000000);
2251 assert(sizeof(int32)==4);
2252 if (tif->tif_flags&TIFF_SWAB)
2253 TIFFSwabArrayOfLong((uint32*)value,count);
2254 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG,count,count*4,value));
2255 }
2256
2257 #ifdef notdef
2258 static int
2259 TIFFWriteDirectoryTagCheckedLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint64 value)
2260 {
2261 uint64 m;
2262 assert(sizeof(uint64)==8);
2263 if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
2264 TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
2265 return(0);
2266 }
2267 m=value;
2268 if (tif->tif_flags&TIFF_SWAB)
2269 TIFFSwabLong8(&m);
2270 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,1,8,&m));
2271 }
2272 #endif
2273
2274 static int
2275 TIFFWriteDirectoryTagCheckedLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
2276 {
2277 assert(count<0x20000000);
2278 assert(sizeof(uint64)==8);
2279 if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
2280 TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8Array","LONG8 not allowed for ClassicTIFF");
2281 return(0);
2282 }
2283 if (tif->tif_flags&TIFF_SWAB)
2284 TIFFSwabArrayOfLong8(value,count);
2285 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,count,count*8,value));
2286 }
2287
2288 #ifdef notdef
2289 static int
2290 TIFFWriteDirectoryTagCheckedSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int64 value)
2291 {
2292 int64 m;
2293 assert(sizeof(int64)==8);
2294 if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
2295 TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedSlong8","SLONG8 not allowed for ClassicTIFF");
2296 return(0);
2297 }
2298 m=value;
2299 if (tif->tif_flags&TIFF_SWAB)
2300 TIFFSwabLong8((uint64*)(&m));
2301 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,1,8,&m));
2302 }
2303 #endif
2304
2305 static int
2306 TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int64* value)
2307 {
2308 assert(count<0x20000000);
2309 assert(sizeof(int64)==8);
2310 if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
2311 TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedSlong8Array","SLONG8 not allowed for ClassicTIFF");
2312 return(0);
2313 }
2314 if (tif->tif_flags&TIFF_SWAB)
2315 TIFFSwabArrayOfLong8((uint64*)value,count);
2316 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,count,count*8,value));
2317 }
2318
2319 static int
2320 TIFFWriteDirectoryTagCheckedRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
2321 {
2322 static const char module[] = "TIFFWriteDirectoryTagCheckedRational";
2323 uint32 m[2];
2324 assert(sizeof(uint32)==4);
2325 if( value < 0 )
2326 {
2327 TIFFErrorExt(tif->tif_clientdata,module,"Negative value is illegal");
2328 return 0;
2329 }
2330 else if( value != value )
2331 {
2332 TIFFErrorExt(tif->tif_clientdata,module,"Not-a-number value is illegal");
2333 return 0;
2334 }
2335 else if (value==0.0)
2336 {
2337 m[0]=0;
2338 m[1]=1;
2339 }
2340 else if (value <= 0xFFFFFFFFU && value==(double)(uint32)value)
2341 {
2342 m[0]=(uint32)value;
2343 m[1]=1;
2344 }
2345 else if (value<1.0)
2346 {
2347 m[0]=(uint32)(value*0xFFFFFFFF);
2348 m[1]=0xFFFFFFFF;
2349 }
2350 else
2351 {
2352 m[0]=0xFFFFFFFF;
2353 m[1]=(uint32)(0xFFFFFFFF/value);
2354 }
2355 if (tif->tif_flags&TIFF_SWAB)
2356 {
2357 TIFFSwabLong(&m[0]);
2358 TIFFSwabLong(&m[1]);
2359 }
2360 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_RATIONAL,1,8,&m[0]));
2361 }
2362
2363 static int
2364 TIFFWriteDirectoryTagCheckedRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
2365 {
2366 static const char module[] = "TIFFWriteDirectoryTagCheckedRationalArray";
2367 uint32* m;
2368 float* na;
2369 uint32* nb;
2370 uint32 nc;
2371 int o;
2372 assert(sizeof(uint32)==4);
2373 m=_TIFFmalloc(count*2*sizeof(uint32));
2374 if (m==NULL)
2375 {
2376 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
2377 return(0);
2378 }
2379 for (na=value, nb=m, nc=0; nc<count; na++, nb+=2, nc++)
2380 {
2381 if (*na<=0.0 || *na != *na)
2382 {
2383 nb[0]=0;
2384 nb[1]=1;
2385 }
2386 else if (*na >= 0 && *na <= (float)0xFFFFFFFFU &&
2387 *na==(float)(uint32)(*na))
2388 {
2389 nb[0]=(uint32)(*na);
2390 nb[1]=1;
2391 }
2392 else if (*na<1.0)
2393 {
2394 nb[0]=(uint32)((double)(*na)*0xFFFFFFFF);
2395 nb[1]=0xFFFFFFFF;
2396 }
2397 else
2398 {
2399 nb[0]=0xFFFFFFFF;
2400 nb[1]=(uint32)((double)0xFFFFFFFF/(*na));
2401 }
2402 }
2403 if (tif->tif_flags&TIFF_SWAB)
2404 TIFFSwabArrayOfLong(m,count*2);
2405 o=TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_RATIONAL,count,count*8,&m[0]);
2406 _TIFFfree(m);
2407 return(o);
2408 }
2409
2410 static int
2411 TIFFWriteDirectoryTagCheckedSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
2412 {
2413 static const char module[] = "TIFFWriteDirectoryTagCheckedSrationalArray";
2414 int32* m;
2415 float* na;
2416 int32* nb;
2417 uint32 nc;
2418 int o;
2419 assert(sizeof(int32)==4);
2420 m=_TIFFmalloc(count*2*sizeof(int32));
2421 if (m==NULL)
2422 {
2423 TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
2424 return(0);
2425 }
2426 for (na=value, nb=m, nc=0; nc<count; na++, nb+=2, nc++)
2427 {
2428 if (*na<0.0)
2429 {
2430 if (*na==(int32)(*na))
2431 {
2432 nb[0]=(int32)(*na);
2433 nb[1]=1;
2434 }
2435 else if (*na>-1.0)
2436 {
2437 nb[0]=-(int32)((double)(-*na)*0x7FFFFFFF);
2438 nb[1]=0x7FFFFFFF;
2439 }
2440 else
2441 {
2442 nb[0]=-0x7FFFFFFF;
2443 nb[1]=(int32)((double)0x7FFFFFFF/(-*na));
2444 }
2445 }
2446 else
2447 {
2448 if (*na==(int32)(*na))
2449 {
2450 nb[0]=(int32)(*na);
2451 nb[1]=1;
2452 }
2453 else if (*na<1.0)
2454 {
2455 nb[0]=(int32)((double)(*na)*0x7FFFFFFF);
2456 nb[1]=0x7FFFFFFF;
2457 }
2458 else
2459 {
2460 nb[0]=0x7FFFFFFF;
2461 nb[1]=(int32)((double)0x7FFFFFFF/(*na));
2462 }
2463 }
2464 }
2465 if (tif->tif_flags&TIFF_SWAB)
2466 TIFFSwabArrayOfLong((uint32*)m,count*2);
2467 o=TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SRATIONAL,count,count*8,&m[0]);
2468 _TIFFfree(m);
2469 return(o);
2470 }
2471
2472 #ifdef notdef
2473 static int
2474 TIFFWriteDirectoryTagCheckedFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value)
2475 {
2476 float m;
2477 assert(sizeof(float)==4);
2478 m=value;
2479 TIFFCvtNativeToIEEEFloat(tif,1,&m);
2480 if (tif->tif_flags&TIFF_SWAB)
2481 TIFFSwabFloat(&m);
2482 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_FLOAT,1,4,&m));
2483 }
2484 #endif
2485
2486 static int
2487 TIFFWriteDirectoryTagCheckedFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
2488 {
2489 assert(count<0x40000000);
2490 assert(sizeof(float)==4);
2491 TIFFCvtNativeToIEEEFloat(tif,count,&value);
2492 if (tif->tif_flags&TIFF_SWAB)
2493 TIFFSwabArrayOfFloat(value,count);
2494 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_FLOAT,count,count*4,value));
2495 }
2496
2497 #ifdef notdef
2498 static int
2499 TIFFWriteDirectoryTagCheckedDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
2500 {
2501 double m;
2502 assert(sizeof(double)==8);
2503 m=value;
2504 TIFFCvtNativeToIEEEDouble(tif,1,&m);
2505 if (tif->tif_flags&TIFF_SWAB)
2506 TIFFSwabDouble(&m);
2507 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_DOUBLE,1,8,&m));
2508 }
2509 #endif
2510
2511 static int
2512 TIFFWriteDirectoryTagCheckedDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
2513 {
2514 assert(count<0x20000000);
2515 assert(sizeof(double)==8);
2516 TIFFCvtNativeToIEEEDouble(tif,count,&value);
2517 if (tif->tif_flags&TIFF_SWAB)
2518 TIFFSwabArrayOfDouble(value,count);
2519 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_DOUBLE,count,count*8,value));
2520 }
2521
2522 static int
2523 TIFFWriteDirectoryTagCheckedIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)
2524 {
2525 assert(count<0x40000000);
2526 assert(sizeof(uint32)==4);
2527 if (tif->tif_flags&TIFF_SWAB)
2528 TIFFSwabArrayOfLong(value,count);
2529 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_IFD,count,count*4,value));
2530 }
2531
2532 static int
2533 TIFFWriteDirectoryTagCheckedIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
2534 {
2535 assert(count<0x20000000);
2536 assert(sizeof(uint64)==8);
2537 assert(tif->tif_flags&TIFF_BIGTIFF);
2538 if (tif->tif_flags&TIFF_SWAB)
2539 TIFFSwabArrayOfLong8(value,count);
2540 return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_IFD8,count,count*8,value));
2541 }
2542
2543 static int
2544 TIFFWriteDirectoryTagData(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 datatype, uint32 count, uint32 datalength, void* data)
2545 {
2546 static const char module[] = "TIFFWriteDirectoryTagData";
2547 uint32 m;
2548 m=0;
2549 while (m<(*ndir))
2550 {
2551 assert(dir[m].tdir_tag!=tag);
2552 if (dir[m].tdir_tag>tag)
2553 break;
2554 m++;
2555 }
2556 if (m<(*ndir))
2557 {
2558 uint32 n;
2559 for (n=*ndir; n>m; n--)
2560 dir[n]=dir[n-1];
2561 }
2562 dir[m].tdir_tag=tag;
2563 dir[m].tdir_type=datatype;
2564 dir[m].tdir_count=count;
2565 dir[m].tdir_offset.toff_long8 = 0;
2566 if (datalength<=((tif->tif_flags&TIFF_BIGTIFF)?0x8U:0x4U))
2567 {
2568 if( data && datalength )
2569 {
2570 _TIFFmemcpy(&dir[m].tdir_offset,data,datalength);
2571 }
2572 }
2573 else
2574 {
2575 uint64 na,nb;
2576 na=tif->tif_dataoff;
2577 nb=na+datalength;
2578 if (!(tif->tif_flags&TIFF_BIGTIFF))
2579 nb=(uint32)nb;
2580 if ((nb<na)||(nb<datalength))
2581 {
2582 TIFFErrorExt(tif->tif_clientdata,module,"Maximum TIFF file size exceeded");
2583 return(0);
2584 }
2585 if (!SeekOK(tif,na))
2586 {
2587 TIFFErrorExt(tif->tif_clientdata,module,"IO error writing tag data");
2588 return(0);
2589 }
2590 assert(datalength<0x80000000UL);
2591 if (!WriteOK(tif,data,(tmsize_t)datalength))
2592 {
2593 TIFFErrorExt(tif->tif_clientdata,module,"IO error writing tag data");
2594 return(0);
2595 }
2596 tif->tif_dataoff=nb;
2597 if (tif->tif_dataoff&1)
2598 tif->tif_dataoff++;
2599 if (!(tif->tif_flags&TIFF_BIGTIFF))
2600 {
2601 uint32 o;
2602 o=(uint32)na;
2603 if (tif->tif_flags&TIFF_SWAB)
2604 TIFFSwabLong(&o);
2605 _TIFFmemcpy(&dir[m].tdir_offset,&o,4);
2606 }
2607 else
2608 {
2609 dir[m].tdir_offset.toff_long8 = na;
2610 if (tif->tif_flags&TIFF_SWAB)
2611 TIFFSwabLong8(&dir[m].tdir_offset.toff_long8);
2612 }
2613 }
2614 (*ndir)++;
2615 return(1);
2616 }
2617
2618 /*
2619 * Link the current directory into the directory chain for the file.
2620 */
2621 static int
2622 TIFFLinkDirectory(TIFF* tif)
2623 {
2624 static const char module[] = "TIFFLinkDirectory";
2625
2626 tif->tif_diroff = (TIFFSeekFile(tif,0,SEEK_END)+1) & (~((toff_t)1));
2627
2628 /*
2629 * Handle SubIFDs
2630 */
2631 if (tif->tif_flags & TIFF_INSUBIFD)
2632 {
2633 if (!(tif->tif_flags&TIFF_BIGTIFF))
2634 {
2635 uint32 m;
2636 m = (uint32)tif->tif_diroff;
2637 if (tif->tif_flags & TIFF_SWAB)
2638 TIFFSwabLong(&m);
2639 (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET);
2640 if (!WriteOK(tif, &m, 4)) {
2641 TIFFErrorExt(tif->tif_clientdata, module,
2642 "Error writing SubIFD directory link");
2643 return (0);
2644 }
2645 /*
2646 * Advance to the next SubIFD or, if this is
2647 * the last one configured, revert back to the
2648 * normal directory linkage.
2649 */
2650 if (--tif->tif_nsubifd)
2651 tif->tif_subifdoff += 4;
2652 else
2653 tif->tif_flags &= ~TIFF_INSUBIFD;
2654 return (1);
2655 }
2656 else
2657 {
2658 uint64 m;
2659 m = tif->tif_diroff;
2660 if (tif->tif_flags & TIFF_SWAB)
2661 TIFFSwabLong8(&m);
2662 (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET);
2663 if (!WriteOK(tif, &m, 8)) {
2664 TIFFErrorExt(tif->tif_clientdata, module,
2665 "Error writing SubIFD directory link");
2666 return (0);
2667 }
2668 /*
2669 * Advance to the next SubIFD or, if this is
2670 * the last one configured, revert back to the
2671 * normal directory linkage.
2672 */
2673 if (--tif->tif_nsubifd)
2674 tif->tif_subifdoff += 8;
2675 else
2676 tif->tif_flags &= ~TIFF_INSUBIFD;
2677 return (1);
2678 }
2679 }
2680
2681 if (!(tif->tif_flags&TIFF_BIGTIFF))
2682 {
2683 uint32 m;
2684 uint32 nextdir;
2685 m = (uint32)(tif->tif_diroff);
2686 if (tif->tif_flags & TIFF_SWAB)
2687 TIFFSwabLong(&m);
2688 if (tif->tif_header.classic.tiff_diroff == 0) {
2689 /*
2690 * First directory, overwrite offset in header.
2691 */
2692 tif->tif_header.classic.tiff_diroff = (uint32) tif->tif_diroff;
2693 (void) TIFFSeekFile(tif,4, SEEK_SET);
2694 if (!WriteOK(tif, &m, 4)) {
2695 TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
2696 "Error writing TIFF header");
2697 return (0);
2698 }
2699 return (1);
2700 }
2701 /*
2702 * Not the first directory, search to the last and append.
2703 */
2704 nextdir = tif->tif_header.classic.tiff_diroff;
2705 while(1) {
2706 uint16 dircount;
2707 uint32 nextnextdir;
2708
2709 if (!SeekOK(tif, nextdir) ||
2710 !ReadOK(tif, &dircount, 2)) {
2711 TIFFErrorExt(tif->tif_clientdata, module,
2712 "Error fetching directory count");
2713 return (0);
2714 }
2715 if (tif->tif_flags & TIFF_SWAB)
2716 TIFFSwabShort(&dircount);
2717 (void) TIFFSeekFile(tif,
2718 nextdir+2+dircount*12, SEEK_SET);
2719 if (!ReadOK(tif, &nextnextdir, 4)) {
2720 TIFFErrorExt(tif->tif_clientdata, module,
2721 "Error fetching directory link");
2722 return (0);
2723 }
2724 if (tif->tif_flags & TIFF_SWAB)
2725 TIFFSwabLong(&nextnextdir);
2726 if (nextnextdir==0)
2727 {
2728 (void) TIFFSeekFile(tif,
2729 nextdir+2+dircount*12, SEEK_SET);
2730 if (!WriteOK(tif, &m, 4)) {
2731 TIFFErrorExt(tif->tif_clientdata, module,
2732 "Error writing directory link");
2733 return (0);
2734 }
2735 break;
2736 }
2737 nextdir=nextnextdir;
2738 }
2739 }
2740 else
2741 {
2742 uint64 m;
2743 uint64 nextdir;
2744 m = tif->tif_diroff;
2745 if (tif->tif_flags & TIFF_SWAB)
2746 TIFFSwabLong8(&m);
2747 if (tif->tif_header.big.tiff_diroff == 0) {
2748 /*
2749 * First directory, overwrite offset in header.
2750 */
2751 tif->tif_header.big.tiff_diroff = tif->tif_diroff;
2752 (void) TIFFSeekFile(tif,8, SEEK_SET);
2753 if (!WriteOK(tif, &m, 8)) {
2754 TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
2755 "Error writing TIFF header");
2756 return (0);
2757 }
2758 return (1);
2759 }
2760 /*
2761 * Not the first directory, search to the last and append.
2762 */
2763 nextdir = tif->tif_header.big.tiff_diroff;
2764 while(1) {
2765 uint64 dircount64;
2766 uint16 dircount;
2767 uint64 nextnextdir;
2768
2769 if (!SeekOK(tif, nextdir) ||
2770 !ReadOK(tif, &dircount64, 8)) {
2771 TIFFErrorExt(tif->tif_clientdata, module,
2772 "Error fetching directory count");
2773 return (0);
2774 }
2775 if (tif->tif_flags & TIFF_SWAB)
2776 TIFFSwabLong8(&dircount64);
2777 if (dircount64>0xFFFF)
2778 {
2779 TIFFErrorExt(tif->tif_clientdata, module,
2780 "Sanity check on tag count failed, likely corrupt TIFF");
2781 return (0);
2782 }
2783 dircount=(uint16)dircount64;
2784 (void) TIFFSeekFile(tif,
2785 nextdir+8+dircount*20, SEEK_SET);
2786 if (!ReadOK(tif, &nextnextdir, 8)) {
2787 TIFFErrorExt(tif->tif_clientdata, module,
2788 "Error fetching directory link");
2789 return (0);
2790 }
2791 if (tif->tif_flags & TIFF_SWAB)
2792 TIFFSwabLong8(&nextnextdir);
2793 if (nextnextdir==0)
2794 {
2795 (void) TIFFSeekFile(tif,
2796 nextdir+8+dircount*20, SEEK_SET);
2797 if (!WriteOK(tif, &m, 8)) {
2798 TIFFErrorExt(tif->tif_clientdata, module,
2799 "Error writing directory link");
2800 return (0);
2801 }
2802 break;
2803 }
2804 nextdir=nextnextdir;
2805 }
2806 }
2807 return (1);
2808 }
2809
2810 /************************************************************************/
2811 /* TIFFRewriteField() */
2812 /* */
2813 /* Rewrite a field in the directory on disk without regard to */
2814 /* updating the TIFF directory structure in memory. Currently */
2815 /* only supported for field that already exist in the on-disk */
2816 /* directory. Mainly used for updating stripoffset / */
2817 /* stripbytecount values after the directory is already on */
2818 /* disk. */
2819 /* */
2820 /* Returns zero on failure, and one on success. */
2821 /************************************************************************/
2822
2823 int
2824 _TIFFRewriteField(TIFF* tif, uint16 tag, TIFFDataType in_datatype,
2825 tmsize_t count, void* data)
2826 {
2827 static const char module[] = "TIFFResetField";
2828 /* const TIFFField* fip = NULL; */
2829 uint16 dircount;
2830 tmsize_t dirsize;
2831 uint8 direntry_raw[20];
2832 uint16 entry_tag = 0;
2833 uint16 entry_type = 0;
2834 uint64 entry_count = 0;
2835 uint64 entry_offset = 0;
2836 int value_in_entry = 0;
2837 uint64 read_offset;
2838 uint8 *buf_to_write = NULL;
2839 TIFFDataType datatype;
2840
2841 /* -------------------------------------------------------------------- */
2842 /* Find field definition. */
2843 /* -------------------------------------------------------------------- */
2844 /*fip =*/ TIFFFindField(tif, tag, TIFF_ANY);
2845
2846 /* -------------------------------------------------------------------- */
2847 /* Do some checking this is a straight forward case. */
2848 /* -------------------------------------------------------------------- */
2849 if( isMapped(tif) )
2850 {
2851 TIFFErrorExt( tif->tif_clientdata, module,
2852 "Memory mapped files not currently supported for this operation." );
2853 return 0;</