1 | /*****************************************************************************/ |
2 | // Copyright 2006-2007 Adobe Systems Incorporated |
3 | // All Rights Reserved. |
4 | // |
5 | // NOTICE: Adobe permits you to use, modify, and distribute this file in |
6 | // accordance with the terms of the Adobe license agreement accompanying it. |
7 | /*****************************************************************************/ |
8 | |
9 | /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_info.cpp#1 $ */ |
10 | /* $DateTime: 2012/05/30 13:28:51 $ */ |
11 | /* $Change: 832332 $ */ |
12 | /* $Author: tknoll $ */ |
13 | |
14 | /*****************************************************************************/ |
15 | |
16 | #include "dng_info.h" |
17 | |
18 | #include "dng_camera_profile.h" |
19 | #include "dng_exceptions.h" |
20 | #include "dng_globals.h" |
21 | #include "dng_host.h" |
22 | #include "dng_tag_codes.h" |
23 | #include "dng_parse_utils.h" |
24 | #include "dng_safe_arithmetic.h" |
25 | #include "dng_tag_types.h" |
26 | #include "dng_tag_values.h" |
27 | #include "dng_utils.h" |
28 | |
29 | /*****************************************************************************/ |
30 | |
31 | dng_info::dng_info () |
32 | |
33 | : fTIFFBlockOffset (0) |
34 | , fTIFFBlockOriginalOffset (kDNGStreamInvalidOffset) |
35 | , fBigEndian (false) |
36 | , fMagic (0) |
37 | , fExif () |
38 | , fShared () |
39 | , fMainIndex (-1) |
40 | , fMaskIndex (-1) |
41 | , fIFDCount (0) |
42 | , fChainedIFDCount (0) |
43 | , fMakerNoteNextIFD (0) |
44 | |
45 | { |
46 | |
47 | } |
48 | |
49 | /*****************************************************************************/ |
50 | |
51 | dng_info::~dng_info () |
52 | { |
53 | |
54 | } |
55 | |
56 | /*****************************************************************************/ |
57 | |
58 | void dng_info::ValidateMagic () |
59 | { |
60 | |
61 | switch (fMagic) |
62 | { |
63 | |
64 | case magicTIFF: |
65 | case magicExtendedProfile: |
66 | case magicRawCache: |
67 | case magicPanasonic: |
68 | case magicOlympusA: |
69 | case magicOlympusB: |
70 | { |
71 | |
72 | return; |
73 | |
74 | } |
75 | |
76 | default: |
77 | { |
78 | |
79 | #if qDNGValidate |
80 | |
81 | ReportError ("Invalid TIFF magic number" ); |
82 | |
83 | #endif |
84 | |
85 | ThrowBadFormat (); |
86 | |
87 | } |
88 | |
89 | } |
90 | |
91 | } |
92 | |
93 | /*****************************************************************************/ |
94 | |
95 | void dng_info::ParseTag (dng_host &host, |
96 | dng_stream &stream, |
97 | dng_exif *exif, |
98 | dng_shared *shared, |
99 | dng_ifd *ifd, |
100 | uint32 parentCode, |
101 | uint32 tagCode, |
102 | uint32 tagType, |
103 | uint32 tagCount, |
104 | uint64 tagOffset, |
105 | int64 offsetDelta) |
106 | { |
107 | |
108 | bool isSubIFD = parentCode >= tcFirstSubIFD && |
109 | parentCode <= tcLastSubIFD; |
110 | |
111 | bool isMainIFD = (parentCode == 0 || isSubIFD) && |
112 | ifd && |
113 | ifd->fUsesNewSubFileType && |
114 | ifd->fNewSubFileType == sfMainImage; |
115 | |
116 | // Panasonic RAW format stores private tags using tag codes < 254 in |
117 | // IFD 0. Redirect the parsing of these tags into a logical |
118 | // "PanasonicRAW" IFD. |
119 | |
120 | // Panasonic is starting to use some higher numbers also (280..283). |
121 | |
122 | if (fMagic == 85 && parentCode == 0 && (tagCode < tcNewSubFileType || |
123 | (tagCode >= 280 && tagCode <= 283))) |
124 | { |
125 | |
126 | parentCode = tcPanasonicRAW; |
127 | |
128 | ifd = NULL; |
129 | |
130 | } |
131 | |
132 | stream.SetReadPosition (tagOffset); |
133 | |
134 | if (ifd && ifd->ParseTag (stream, |
135 | parentCode, |
136 | tagCode, |
137 | tagType, |
138 | tagCount, |
139 | tagOffset)) |
140 | { |
141 | |
142 | return; |
143 | |
144 | } |
145 | |
146 | stream.SetReadPosition (tagOffset); |
147 | |
148 | if (exif && shared && exif->ParseTag (stream, |
149 | *shared, |
150 | parentCode, |
151 | isMainIFD, |
152 | tagCode, |
153 | tagType, |
154 | tagCount, |
155 | tagOffset)) |
156 | { |
157 | |
158 | return; |
159 | |
160 | } |
161 | |
162 | stream.SetReadPosition (tagOffset); |
163 | |
164 | if (shared && exif && shared->ParseTag (stream, |
165 | *exif, |
166 | parentCode, |
167 | isMainIFD, |
168 | tagCode, |
169 | tagType, |
170 | tagCount, |
171 | tagOffset, |
172 | offsetDelta)) |
173 | { |
174 | |
175 | return; |
176 | |
177 | } |
178 | |
179 | if (parentCode == tcLeicaMakerNote && |
180 | tagType == ttUndefined && |
181 | tagCount >= 14) |
182 | { |
183 | |
184 | if (ParseMakerNoteIFD (host, |
185 | stream, |
186 | tagCount, |
187 | tagOffset, |
188 | offsetDelta, |
189 | tagOffset, |
190 | stream.Length (), |
191 | tcLeicaMakerNote)) |
192 | { |
193 | |
194 | return; |
195 | |
196 | } |
197 | |
198 | } |
199 | |
200 | if (parentCode == tcOlympusMakerNote && |
201 | tagType == ttUndefined && |
202 | tagCount >= 14) |
203 | { |
204 | |
205 | uint32 olympusMakerParent = 0; |
206 | |
207 | switch (tagCode) |
208 | { |
209 | |
210 | case 8208: |
211 | olympusMakerParent = tcOlympusMakerNote8208; |
212 | break; |
213 | |
214 | case 8224: |
215 | olympusMakerParent = tcOlympusMakerNote8224; |
216 | break; |
217 | |
218 | case 8240: |
219 | olympusMakerParent = tcOlympusMakerNote8240; |
220 | break; |
221 | |
222 | case 8256: |
223 | olympusMakerParent = tcOlympusMakerNote8256; |
224 | break; |
225 | |
226 | case 8272: |
227 | olympusMakerParent = tcOlympusMakerNote8272; |
228 | break; |
229 | |
230 | case 12288: |
231 | olympusMakerParent = tcOlympusMakerNote12288; |
232 | break; |
233 | |
234 | default: |
235 | break; |
236 | |
237 | } |
238 | |
239 | if (olympusMakerParent) |
240 | { |
241 | |
242 | // Olympus made a mistake in some camera models in computing |
243 | // the size of these sub-tags, so we fudge the count. |
244 | |
245 | if (ParseMakerNoteIFD (host, |
246 | stream, |
247 | stream.Length () - tagOffset, |
248 | tagOffset, |
249 | offsetDelta, |
250 | tagOffset, |
251 | stream.Length (), |
252 | olympusMakerParent)) |
253 | { |
254 | |
255 | return; |
256 | |
257 | } |
258 | |
259 | } |
260 | |
261 | } |
262 | |
263 | if (parentCode == tcRicohMakerNote && |
264 | tagCode == 0x2001 && |
265 | tagType == ttUndefined && |
266 | tagCount > 22) |
267 | { |
268 | |
269 | char [20]; |
270 | |
271 | stream.SetReadPosition (tagOffset); |
272 | |
273 | stream.Get (header, sizeof (header)); |
274 | |
275 | if (memcmp (header, "[Ricoh Camera Info]" , 19) == 0) |
276 | { |
277 | |
278 | ParseMakerNoteIFD (host, |
279 | stream, |
280 | tagCount - 20, |
281 | tagOffset + 20, |
282 | offsetDelta, |
283 | tagOffset + 20, |
284 | tagOffset + tagCount, |
285 | tcRicohMakerNoteCameraInfo); |
286 | |
287 | return; |
288 | |
289 | } |
290 | |
291 | } |
292 | |
293 | #if qDNGValidate |
294 | |
295 | { |
296 | |
297 | stream.SetReadPosition (tagOffset); |
298 | |
299 | if (gVerbose) |
300 | { |
301 | |
302 | printf ("*" ); |
303 | |
304 | DumpTagValues (stream, |
305 | LookupTagType (tagType), |
306 | parentCode, |
307 | tagCode, |
308 | tagType, |
309 | tagCount); |
310 | |
311 | } |
312 | |
313 | // If type is ASCII, then parse anyway so we report any ASCII |
314 | // NULL termination or character set errors. |
315 | |
316 | else if (tagType == ttAscii) |
317 | { |
318 | |
319 | dng_string s; |
320 | |
321 | ParseStringTag (stream, |
322 | parentCode, |
323 | tagCode, |
324 | tagCount, |
325 | s, |
326 | false); |
327 | |
328 | } |
329 | |
330 | } |
331 | |
332 | #endif |
333 | |
334 | } |
335 | |
336 | /*****************************************************************************/ |
337 | |
338 | bool dng_info::ValidateIFD (dng_stream &stream, |
339 | uint64 ifdOffset, |
340 | int64 offsetDelta) |
341 | { |
342 | |
343 | // Make sure we have a count. |
344 | |
345 | if (ifdOffset + 2 > stream.Length ()) |
346 | { |
347 | return false; |
348 | } |
349 | |
350 | // Get entry count. |
351 | |
352 | stream.SetReadPosition (ifdOffset); |
353 | |
354 | uint32 ifdEntries = stream.Get_uint16 (); |
355 | |
356 | if (ifdEntries < 1) |
357 | { |
358 | return false; |
359 | } |
360 | |
361 | // Make sure we have room for all entries and next IFD link. |
362 | |
363 | if (ifdOffset + 2 + ifdEntries * 12 + 4 > stream.Length ()) |
364 | { |
365 | return false; |
366 | } |
367 | |
368 | // Check each entry. |
369 | |
370 | for (uint32 tag_index = 0; tag_index < ifdEntries; tag_index++) |
371 | { |
372 | |
373 | stream.SetReadPosition (ifdOffset + 2 + tag_index * 12); |
374 | |
375 | stream.Skip (2); // Ignore tag code. |
376 | |
377 | uint32 tagType = stream.Get_uint16 (); |
378 | uint32 tagCount = stream.Get_uint32 (); |
379 | |
380 | uint32 tag_type_size = TagTypeSize (tagType); |
381 | |
382 | if (tag_type_size == 0) |
383 | { |
384 | return false; |
385 | } |
386 | |
387 | uint32 tag_data_size = SafeUint32Mult(tagCount, tag_type_size); |
388 | |
389 | if (tag_data_size > 4) |
390 | { |
391 | |
392 | uint64 tagOffset = stream.Get_uint32 (); |
393 | |
394 | tagOffset += offsetDelta; |
395 | |
396 | if (SafeUint64Add(tagOffset, tag_data_size) > stream.Length()) |
397 | { |
398 | return false; |
399 | } |
400 | |
401 | } |
402 | |
403 | } |
404 | |
405 | return true; |
406 | |
407 | } |
408 | |
409 | /*****************************************************************************/ |
410 | |
411 | void dng_info::ParseIFD (dng_host &host, |
412 | dng_stream &stream, |
413 | dng_exif *exif, |
414 | dng_shared *shared, |
415 | dng_ifd *ifd, |
416 | uint64 ifdOffset, |
417 | int64 offsetDelta, |
418 | uint32 parentCode) |
419 | { |
420 | |
421 | #if qDNGValidate |
422 | |
423 | bool isMakerNote = (parentCode >= tcFirstMakerNoteIFD && |
424 | parentCode <= tcLastMakerNoteIFD); |
425 | |
426 | #endif |
427 | |
428 | stream.SetReadPosition (ifdOffset); |
429 | |
430 | if (ifd) |
431 | { |
432 | ifd->fThisIFD = ifdOffset; |
433 | } |
434 | |
435 | uint32 ifdEntries = stream.Get_uint16 (); |
436 | |
437 | #if qDNGValidate |
438 | |
439 | if (gVerbose) |
440 | { |
441 | |
442 | printf ("%s: Offset = %u, Entries = %u\n\n" , |
443 | LookupParentCode (parentCode), |
444 | (unsigned) ifdOffset, |
445 | (unsigned) ifdEntries); |
446 | |
447 | } |
448 | |
449 | if ((ifdOffset & 1) && !isMakerNote) |
450 | { |
451 | |
452 | char message [256]; |
453 | |
454 | sprintf (message, |
455 | "%s has odd offset (%u)" , |
456 | LookupParentCode (parentCode), |
457 | (unsigned) ifdOffset); |
458 | |
459 | ReportWarning (message); |
460 | |
461 | } |
462 | |
463 | #endif |
464 | |
465 | uint32 prev_tag_code = 0; |
466 | |
467 | for (uint32 tag_index = 0; tag_index < ifdEntries; tag_index++) |
468 | { |
469 | |
470 | stream.SetReadPosition (ifdOffset + 2 + tag_index * 12); |
471 | |
472 | uint32 tagCode = stream.Get_uint16 (); |
473 | uint32 tagType = stream.Get_uint16 (); |
474 | |
475 | // Minolta 7D files have a bug in the EXIF block where the count |
476 | // is wrong, and we run off into next IFD link. So if abort parsing |
477 | // if we get a zero code/type combinations. |
478 | |
479 | if (tagCode == 0 && tagType == 0) |
480 | { |
481 | |
482 | #if qDNGValidate |
483 | |
484 | char message [256]; |
485 | |
486 | sprintf (message, |
487 | "%s had zero/zero tag code/type entry" , |
488 | LookupParentCode (parentCode)); |
489 | |
490 | ReportWarning (message); |
491 | |
492 | #endif |
493 | |
494 | return; |
495 | |
496 | } |
497 | |
498 | uint32 tagCount = stream.Get_uint32 (); |
499 | |
500 | #if qDNGValidate |
501 | |
502 | { |
503 | |
504 | if (tag_index > 0 && tagCode <= prev_tag_code && !isMakerNote) |
505 | { |
506 | |
507 | char message [256]; |
508 | |
509 | sprintf (message, |
510 | "%s tags are not sorted in ascending numerical order" , |
511 | LookupParentCode (parentCode)); |
512 | |
513 | ReportWarning (message); |
514 | |
515 | } |
516 | |
517 | } |
518 | |
519 | #endif |
520 | |
521 | prev_tag_code = tagCode; |
522 | |
523 | uint32 tag_type_size = TagTypeSize (tagType); |
524 | |
525 | if (tag_type_size == 0) |
526 | { |
527 | |
528 | #if qDNGValidate |
529 | |
530 | { |
531 | |
532 | char message [256]; |
533 | |
534 | sprintf (message, |
535 | "%s %s has unknown type (%u)" , |
536 | LookupParentCode (parentCode), |
537 | LookupTagCode (parentCode, tagCode), |
538 | (unsigned) tagType); |
539 | |
540 | ReportWarning (message); |
541 | |
542 | } |
543 | |
544 | #endif |
545 | |
546 | continue; |
547 | |
548 | } |
549 | |
550 | uint64 tagOffset = ifdOffset + 2 + tag_index * 12 + 8; |
551 | |
552 | if (SafeUint32Mult(tagCount, tag_type_size) > 4) |
553 | { |
554 | |
555 | tagOffset = stream.Get_uint32 (); |
556 | |
557 | #if qDNGValidate |
558 | |
559 | { |
560 | |
561 | if (!(ifdOffset & 1) && |
562 | (tagOffset & 1) && |
563 | !isMakerNote && |
564 | parentCode != tcKodakDCRPrivateIFD && |
565 | parentCode != tcKodakKDCPrivateIFD) |
566 | { |
567 | |
568 | char message [256]; |
569 | |
570 | sprintf (message, |
571 | "%s %s has odd data offset (%u)" , |
572 | LookupParentCode (parentCode), |
573 | LookupTagCode (parentCode, tagCode), |
574 | (unsigned) tagOffset); |
575 | |
576 | ReportWarning (message); |
577 | |
578 | } |
579 | |
580 | } |
581 | |
582 | #endif |
583 | |
584 | tagOffset += offsetDelta; |
585 | |
586 | stream.SetReadPosition (tagOffset); |
587 | |
588 | } |
589 | |
590 | ParseTag (host, |
591 | stream, |
592 | exif, |
593 | shared, |
594 | ifd, |
595 | parentCode, |
596 | tagCode, |
597 | tagType, |
598 | tagCount, |
599 | tagOffset, |
600 | offsetDelta); |
601 | |
602 | } |
603 | |
604 | stream.SetReadPosition (ifdOffset + 2 + ifdEntries * 12); |
605 | |
606 | uint32 nextIFD = stream.Get_uint32 (); |
607 | |
608 | #if qDNGValidate |
609 | |
610 | if (gVerbose) |
611 | { |
612 | printf ("NextIFD = %u\n" , (unsigned) nextIFD); |
613 | } |
614 | |
615 | #endif |
616 | |
617 | if (ifd) |
618 | { |
619 | ifd->fNextIFD = nextIFD; |
620 | } |
621 | |
622 | #if qDNGValidate |
623 | |
624 | if (nextIFD) |
625 | { |
626 | |
627 | if (parentCode != 0 && |
628 | (parentCode < tcFirstChainedIFD || |
629 | parentCode > tcLastChainedIFD )) |
630 | { |
631 | |
632 | char message [256]; |
633 | |
634 | sprintf (message, |
635 | "%s has an unexpected non-zero NextIFD (%u)" , |
636 | LookupParentCode (parentCode), |
637 | (unsigned) nextIFD); |
638 | |
639 | ReportWarning (message); |
640 | |
641 | } |
642 | |
643 | } |
644 | |
645 | if (gVerbose) |
646 | { |
647 | printf ("\n" ); |
648 | } |
649 | |
650 | #endif |
651 | |
652 | } |
653 | |
654 | /*****************************************************************************/ |
655 | |
656 | bool dng_info::ParseMakerNoteIFD (dng_host &host, |
657 | dng_stream &stream, |
658 | uint64 ifdSize, |
659 | uint64 ifdOffset, |
660 | int64 offsetDelta, |
661 | uint64 minOffset, |
662 | uint64 maxOffset, |
663 | uint32 parentCode) |
664 | { |
665 | |
666 | uint32 tagIndex; |
667 | uint32 tagCode; |
668 | uint32 tagType; |
669 | uint32 tagCount; |
670 | |
671 | // Assume there is no next IFD pointer. |
672 | |
673 | fMakerNoteNextIFD = 0; |
674 | |
675 | // If size is too small to hold a single entry IFD, abort. |
676 | |
677 | if (ifdSize < 14) |
678 | { |
679 | return false; |
680 | } |
681 | |
682 | // Get entry count. |
683 | |
684 | stream.SetReadPosition (ifdOffset); |
685 | |
686 | uint32 ifdEntries = stream.Get_uint16 (); |
687 | |
688 | // Make the entry count if reasonable for the MakerNote size. |
689 | |
690 | if (ifdEntries < 1 || 2 + ifdEntries * 12 > ifdSize) |
691 | { |
692 | return false; |
693 | } |
694 | |
695 | // Scan IFD to verify all the tag types are all valid. |
696 | |
697 | for (tagIndex = 0; tagIndex < ifdEntries; tagIndex++) |
698 | { |
699 | |
700 | stream.SetReadPosition (ifdOffset + 2 + tagIndex * 12 + 2); |
701 | |
702 | tagType = stream.Get_uint16 (); |
703 | |
704 | // Kludge: Some Canon MakerNotes contain tagType = 0 tags, so we |
705 | // need to ignore them. This was a "firmware 1.0.4" Canon 40D raw file. |
706 | |
707 | if (parentCode == tcCanonMakerNote && tagType == 0) |
708 | { |
709 | continue; |
710 | } |
711 | |
712 | if (TagTypeSize (tagType) == 0) |
713 | { |
714 | return false; |
715 | } |
716 | |
717 | } |
718 | |
719 | // OK, the IFD looks reasonable enough to parse. |
720 | |
721 | #if qDNGValidate |
722 | |
723 | if (gVerbose) |
724 | { |
725 | |
726 | printf ("%s: Offset = %u, Entries = %u\n\n" , |
727 | LookupParentCode (parentCode), |
728 | (unsigned) ifdOffset, |
729 | (unsigned) ifdEntries); |
730 | |
731 | } |
732 | |
733 | #endif |
734 | |
735 | for (tagIndex = 0; tagIndex < ifdEntries; tagIndex++) |
736 | { |
737 | |
738 | stream.SetReadPosition (ifdOffset + 2 + tagIndex * 12); |
739 | |
740 | tagCode = stream.Get_uint16 (); |
741 | tagType = stream.Get_uint16 (); |
742 | tagCount = stream.Get_uint32 (); |
743 | |
744 | if (tagType == 0) |
745 | { |
746 | continue; |
747 | } |
748 | |
749 | uint32 tagSize = SafeUint32Mult(tagCount, TagTypeSize (tagType)); |
750 | |
751 | uint64 tagOffset = ifdOffset + 2 + tagIndex * 12 + 8; |
752 | |
753 | if (tagSize > 4) |
754 | { |
755 | |
756 | tagOffset = stream.Get_uint32 () + offsetDelta; |
757 | |
758 | if (tagOffset < minOffset || |
759 | SafeUint64Add(tagOffset, tagSize) > maxOffset) |
760 | { |
761 | |
762 | // Tag data is outside the valid offset range, |
763 | // so ignore this tag. |
764 | |
765 | continue; |
766 | |
767 | } |
768 | |
769 | stream.SetReadPosition (tagOffset); |
770 | |
771 | } |
772 | |
773 | // Olympus switched to using IFDs in version 3 makernotes. |
774 | |
775 | if (parentCode == tcOlympusMakerNote && |
776 | tagType == ttIFD && |
777 | tagCount == 1) |
778 | { |
779 | |
780 | uint32 olympusMakerParent = 0; |
781 | |
782 | switch (tagCode) |
783 | { |
784 | |
785 | case 8208: |
786 | olympusMakerParent = tcOlympusMakerNote8208; |
787 | break; |
788 | |
789 | case 8224: |
790 | olympusMakerParent = tcOlympusMakerNote8224; |
791 | break; |
792 | |
793 | case 8240: |
794 | olympusMakerParent = tcOlympusMakerNote8240; |
795 | break; |
796 | |
797 | case 8256: |
798 | olympusMakerParent = tcOlympusMakerNote8256; |
799 | break; |
800 | |
801 | case 8272: |
802 | olympusMakerParent = tcOlympusMakerNote8272; |
803 | break; |
804 | |
805 | case 12288: |
806 | olympusMakerParent = tcOlympusMakerNote12288; |
807 | break; |
808 | |
809 | default: |
810 | break; |
811 | |
812 | } |
813 | |
814 | if (olympusMakerParent) |
815 | { |
816 | |
817 | stream.SetReadPosition (tagOffset); |
818 | |
819 | uint64 subMakerNoteOffset = stream.Get_uint32 () + offsetDelta; |
820 | |
821 | if (subMakerNoteOffset >= minOffset && |
822 | subMakerNoteOffset < maxOffset) |
823 | { |
824 | |
825 | if (ParseMakerNoteIFD (host, |
826 | stream, |
827 | maxOffset - subMakerNoteOffset, |
828 | subMakerNoteOffset, |
829 | offsetDelta, |
830 | minOffset, |
831 | maxOffset, |
832 | olympusMakerParent)) |
833 | { |
834 | |
835 | continue; |
836 | |
837 | } |
838 | |
839 | } |
840 | |
841 | } |
842 | |
843 | stream.SetReadPosition (tagOffset); |
844 | |
845 | } |
846 | |
847 | ParseTag (host, |
848 | stream, |
849 | fExif.Get (), |
850 | fShared.Get (), |
851 | NULL, |
852 | parentCode, |
853 | tagCode, |
854 | tagType, |
855 | tagCount, |
856 | tagOffset, |
857 | offsetDelta); |
858 | |
859 | } |
860 | |
861 | // Grab next IFD pointer, for possible use. |
862 | |
863 | if (ifdSize >= 2 + ifdEntries * 12 + 4) |
864 | { |
865 | |
866 | stream.SetReadPosition (ifdOffset + 2 + ifdEntries * 12); |
867 | |
868 | fMakerNoteNextIFD = stream.Get_uint32 (); |
869 | |
870 | } |
871 | |
872 | #if qDNGValidate |
873 | |
874 | if (gVerbose) |
875 | { |
876 | printf ("\n" ); |
877 | } |
878 | |
879 | #endif |
880 | |
881 | return true; |
882 | |
883 | } |
884 | |
885 | /*****************************************************************************/ |
886 | |
887 | void dng_info::ParseMakerNote (dng_host &host, |
888 | dng_stream &stream, |
889 | uint32 makerNoteCount, |
890 | uint64 makerNoteOffset, |
891 | int64 offsetDelta, |
892 | uint64 minOffset, |
893 | uint64 maxOffset) |
894 | { |
895 | |
896 | uint8 firstBytes [16]; |
897 | |
898 | memset (firstBytes, 0, sizeof (firstBytes)); |
899 | |
900 | stream.SetReadPosition (makerNoteOffset); |
901 | |
902 | stream.Get (firstBytes, (uint32) Min_uint64 (sizeof (firstBytes), |
903 | makerNoteCount)); |
904 | |
905 | // Epson MakerNote with header. |
906 | |
907 | if (memcmp (firstBytes, "EPSON\000\001\000" , 8) == 0) |
908 | { |
909 | |
910 | if (makerNoteCount > 8) |
911 | { |
912 | |
913 | ParseMakerNoteIFD (host, |
914 | stream, |
915 | makerNoteCount - 8, |
916 | makerNoteOffset + 8, |
917 | offsetDelta, |
918 | minOffset, |
919 | maxOffset, |
920 | tcEpsonMakerNote); |
921 | |
922 | } |
923 | |
924 | return; |
925 | |
926 | } |
927 | |
928 | // Fujifilm MakerNote. |
929 | |
930 | if (memcmp (firstBytes, "FUJIFILM" , 8) == 0) |
931 | { |
932 | |
933 | stream.SetReadPosition (makerNoteOffset + 8); |
934 | |
935 | TempLittleEndian tempEndian (stream); |
936 | |
937 | uint32 ifd_offset = stream.Get_uint32 (); |
938 | |
939 | if (ifd_offset >= 12 && ifd_offset < makerNoteCount) |
940 | { |
941 | |
942 | ParseMakerNoteIFD (host, |
943 | stream, |
944 | makerNoteCount - ifd_offset, |
945 | makerNoteOffset + ifd_offset, |
946 | makerNoteOffset, |
947 | minOffset, |
948 | maxOffset, |
949 | tcFujiMakerNote); |
950 | |
951 | } |
952 | |
953 | return; |
954 | |
955 | } |
956 | |
957 | // Leica MakerNote for models that store entry offsets relative to the start of |
958 | // the MakerNote (e.g., M9). |
959 | |
960 | if ((memcmp (firstBytes, "LEICA\000\000\000" , 8) == 0) || |
961 | (memcmp (firstBytes, "LEICA0\003\000" , 8) == 0) || |
962 | (memcmp (firstBytes, "LEICA\000\001\000" , 8) == 0) || |
963 | (memcmp (firstBytes, "LEICA\000\005\000" , 8) == 0)) |
964 | { |
965 | |
966 | if (makerNoteCount > 8) |
967 | { |
968 | |
969 | ParseMakerNoteIFD (host, |
970 | stream, |
971 | makerNoteCount - 8, |
972 | makerNoteOffset + 8, |
973 | makerNoteOffset, |
974 | minOffset, |
975 | maxOffset, |
976 | tcLeicaMakerNote); |
977 | |
978 | } |
979 | |
980 | return; |
981 | |
982 | } |
983 | |
984 | // Leica MakerNote for models that store absolute entry offsets (i.e., relative |
985 | // to the start of the file, e.g., S2). |
986 | |
987 | if (memcmp (firstBytes, "LEICA\000\002\377" , 8) == 0) |
988 | { |
989 | |
990 | if (makerNoteCount > 8) |
991 | { |
992 | |
993 | ParseMakerNoteIFD (host, |
994 | stream, |
995 | makerNoteCount - 8, |
996 | makerNoteOffset + 8, |
997 | offsetDelta, |
998 | minOffset, |
999 | maxOffset, |
1000 | tcLeicaMakerNote); |
1001 | |
1002 | } |
1003 | |
1004 | return; |
1005 | |
1006 | } |
1007 | |
1008 | // Nikon version 2 MakerNote with header. |
1009 | |
1010 | if (memcmp (firstBytes, "Nikon\000\002" , 7) == 0) |
1011 | { |
1012 | |
1013 | stream.SetReadPosition (makerNoteOffset + 10); |
1014 | |
1015 | bool bigEndian = false; |
1016 | |
1017 | uint16 endianMark = stream.Get_uint16 (); |
1018 | |
1019 | if (endianMark == byteOrderMM) |
1020 | { |
1021 | bigEndian = true; |
1022 | } |
1023 | |
1024 | else if (endianMark != byteOrderII) |
1025 | { |
1026 | return; |
1027 | } |
1028 | |
1029 | TempBigEndian temp_endian (stream, bigEndian); |
1030 | |
1031 | uint16 magic = stream.Get_uint16 (); |
1032 | |
1033 | if (magic != 42) |
1034 | { |
1035 | return; |
1036 | } |
1037 | |
1038 | uint32 ifd_offset = stream.Get_uint32 (); |
1039 | |
1040 | if (ifd_offset >= 8 && ifd_offset < makerNoteCount - 10) |
1041 | { |
1042 | |
1043 | ParseMakerNoteIFD (host, |
1044 | stream, |
1045 | makerNoteCount - 10 - ifd_offset, |
1046 | makerNoteOffset + 10 + ifd_offset, |
1047 | makerNoteOffset + 10, |
1048 | minOffset, |
1049 | maxOffset, |
1050 | tcNikonMakerNote); |
1051 | |
1052 | } |
1053 | |
1054 | return; |
1055 | |
1056 | } |
1057 | |
1058 | // Newer version of Olympus MakerNote with byte order mark. |
1059 | |
1060 | if (memcmp (firstBytes, "OLYMPUS\000" , 8) == 0) |
1061 | { |
1062 | |
1063 | stream.SetReadPosition (makerNoteOffset + 8); |
1064 | |
1065 | bool bigEndian = false; |
1066 | |
1067 | uint16 endianMark = stream.Get_uint16 (); |
1068 | |
1069 | if (endianMark == byteOrderMM) |
1070 | { |
1071 | bigEndian = true; |
1072 | } |
1073 | |
1074 | else if (endianMark != byteOrderII) |
1075 | { |
1076 | return; |
1077 | } |
1078 | |
1079 | TempBigEndian temp_endian (stream, bigEndian); |
1080 | |
1081 | uint16 version = stream.Get_uint16 (); |
1082 | |
1083 | if (version != 3) |
1084 | { |
1085 | return; |
1086 | } |
1087 | |
1088 | if (makerNoteCount > 12) |
1089 | { |
1090 | |
1091 | ParseMakerNoteIFD (host, |
1092 | stream, |
1093 | makerNoteCount - 12, |
1094 | makerNoteOffset + 12, |
1095 | makerNoteOffset, |
1096 | minOffset, |
1097 | maxOffset, |
1098 | tcOlympusMakerNote); |
1099 | |
1100 | } |
1101 | |
1102 | return; |
1103 | |
1104 | } |
1105 | |
1106 | // Olympus MakerNote with header. |
1107 | |
1108 | if (memcmp (firstBytes, "OLYMP" , 5) == 0) |
1109 | { |
1110 | |
1111 | if (makerNoteCount > 8) |
1112 | { |
1113 | |
1114 | ParseMakerNoteIFD (host, |
1115 | stream, |
1116 | makerNoteCount - 8, |
1117 | makerNoteOffset + 8, |
1118 | offsetDelta, |
1119 | minOffset, |
1120 | maxOffset, |
1121 | tcOlympusMakerNote); |
1122 | |
1123 | } |
1124 | |
1125 | return; |
1126 | |
1127 | } |
1128 | |
1129 | // Panasonic MakerNote. |
1130 | |
1131 | if (memcmp (firstBytes, "Panasonic\000\000\000" , 12) == 0) |
1132 | { |
1133 | |
1134 | if (makerNoteCount > 12) |
1135 | { |
1136 | |
1137 | ParseMakerNoteIFD (host, |
1138 | stream, |
1139 | makerNoteCount - 12, |
1140 | makerNoteOffset + 12, |
1141 | offsetDelta, |
1142 | minOffset, |
1143 | maxOffset, |
1144 | tcPanasonicMakerNote); |
1145 | |
1146 | } |
1147 | |
1148 | return; |
1149 | |
1150 | } |
1151 | |
1152 | // Pentax MakerNote. |
1153 | |
1154 | if (memcmp (firstBytes, "AOC" , 4) == 0) |
1155 | { |
1156 | |
1157 | if (makerNoteCount > 6) |
1158 | { |
1159 | |
1160 | stream.SetReadPosition (makerNoteOffset + 4); |
1161 | |
1162 | bool bigEndian = stream.BigEndian (); |
1163 | |
1164 | uint16 endianMark = stream.Get_uint16 (); |
1165 | |
1166 | if (endianMark == byteOrderMM) |
1167 | { |
1168 | bigEndian = true; |
1169 | } |
1170 | |
1171 | else if (endianMark == byteOrderII) |
1172 | { |
1173 | bigEndian = false; |
1174 | } |
1175 | |
1176 | TempBigEndian temp_endian (stream, bigEndian); |
1177 | |
1178 | ParseMakerNoteIFD (host, |
1179 | stream, |
1180 | makerNoteCount - 6, |
1181 | makerNoteOffset + 6, |
1182 | offsetDelta, |
1183 | minOffset, |
1184 | maxOffset, |
1185 | tcPentaxMakerNote); |
1186 | |
1187 | } |
1188 | |
1189 | return; |
1190 | |
1191 | } |
1192 | |
1193 | // Ricoh MakerNote. |
1194 | |
1195 | if (memcmp (firstBytes, "RICOH" , 5) == 0 || |
1196 | memcmp (firstBytes, "Ricoh" , 5) == 0) |
1197 | { |
1198 | |
1199 | if (makerNoteCount > 8) |
1200 | { |
1201 | |
1202 | TempBigEndian tempEndian (stream); |
1203 | |
1204 | ParseMakerNoteIFD (host, |
1205 | stream, |
1206 | makerNoteCount - 8, |
1207 | makerNoteOffset + 8, |
1208 | offsetDelta, |
1209 | minOffset, |
1210 | maxOffset, |
1211 | tcRicohMakerNote); |
1212 | |
1213 | } |
1214 | |
1215 | return; |
1216 | |
1217 | } |
1218 | |
1219 | // Nikon MakerNote without header. |
1220 | |
1221 | if (fExif->fMake.StartsWith ("NIKON" )) |
1222 | { |
1223 | |
1224 | ParseMakerNoteIFD (host, |
1225 | stream, |
1226 | makerNoteCount, |
1227 | makerNoteOffset, |
1228 | offsetDelta, |
1229 | minOffset, |
1230 | maxOffset, |
1231 | tcNikonMakerNote); |
1232 | |
1233 | return; |
1234 | |
1235 | } |
1236 | |
1237 | // Canon MakerNote. |
1238 | |
1239 | if (fExif->fMake.StartsWith ("CANON" )) |
1240 | { |
1241 | |
1242 | ParseMakerNoteIFD (host, |
1243 | stream, |
1244 | makerNoteCount, |
1245 | makerNoteOffset, |
1246 | offsetDelta, |
1247 | minOffset, |
1248 | maxOffset, |
1249 | tcCanonMakerNote); |
1250 | |
1251 | return; |
1252 | |
1253 | } |
1254 | |
1255 | // Minolta MakerNote. |
1256 | |
1257 | if (fExif->fMake.StartsWith ("MINOLTA" ) || |
1258 | fExif->fMake.StartsWith ("KONICA MINOLTA" )) |
1259 | { |
1260 | |
1261 | ParseMakerNoteIFD (host, |
1262 | stream, |
1263 | makerNoteCount, |
1264 | makerNoteOffset, |
1265 | offsetDelta, |
1266 | minOffset, |
1267 | maxOffset, |
1268 | tcMinoltaMakerNote); |
1269 | |
1270 | return; |
1271 | |
1272 | } |
1273 | |
1274 | // Sony MakerNote. |
1275 | |
1276 | if (fExif->fMake.StartsWith ("SONY" )) |
1277 | { |
1278 | |
1279 | ParseMakerNoteIFD (host, |
1280 | stream, |
1281 | makerNoteCount, |
1282 | makerNoteOffset, |
1283 | offsetDelta, |
1284 | minOffset, |
1285 | maxOffset, |
1286 | tcSonyMakerNote); |
1287 | |
1288 | return; |
1289 | |
1290 | } |
1291 | |
1292 | // Kodak MakerNote. |
1293 | |
1294 | if (fExif->fMake.StartsWith ("EASTMAN KODAK" )) |
1295 | { |
1296 | |
1297 | ParseMakerNoteIFD (host, |
1298 | stream, |
1299 | makerNoteCount, |
1300 | makerNoteOffset, |
1301 | offsetDelta, |
1302 | minOffset, |
1303 | maxOffset, |
1304 | tcKodakMakerNote); |
1305 | |
1306 | return; |
1307 | |
1308 | } |
1309 | |
1310 | // Mamiya MakerNote. |
1311 | |
1312 | if (fExif->fMake.StartsWith ("Mamiya" )) |
1313 | { |
1314 | |
1315 | ParseMakerNoteIFD (host, |
1316 | stream, |
1317 | makerNoteCount, |
1318 | makerNoteOffset, |
1319 | offsetDelta, |
1320 | minOffset, |
1321 | maxOffset, |
1322 | tcMamiyaMakerNote); |
1323 | |
1324 | // Mamiya uses a MakerNote chain. |
1325 | |
1326 | while (fMakerNoteNextIFD) |
1327 | { |
1328 | |
1329 | ParseMakerNoteIFD (host, |
1330 | stream, |
1331 | makerNoteCount, |
1332 | offsetDelta + fMakerNoteNextIFD, |
1333 | offsetDelta, |
1334 | minOffset, |
1335 | maxOffset, |
1336 | tcMamiyaMakerNote); |
1337 | |
1338 | } |
1339 | |
1340 | return; |
1341 | |
1342 | } |
1343 | |
1344 | // Nikon MakerNote without header. |
1345 | |
1346 | if (fExif->fMake.StartsWith ("Hasselblad" )) |
1347 | { |
1348 | |
1349 | ParseMakerNoteIFD (host, |
1350 | stream, |
1351 | makerNoteCount, |
1352 | makerNoteOffset, |
1353 | offsetDelta, |
1354 | minOffset, |
1355 | maxOffset, |
1356 | tcHasselbladMakerNote); |
1357 | |
1358 | return; |
1359 | |
1360 | } |
1361 | |
1362 | // Samsung MakerNote. |
1363 | |
1364 | if (fExif->fMake.StartsWith ("Samsung" )) |
1365 | { |
1366 | |
1367 | ParseMakerNoteIFD (host, |
1368 | stream, |
1369 | makerNoteCount, |
1370 | makerNoteOffset, |
1371 | makerNoteOffset, |
1372 | minOffset, |
1373 | maxOffset, |
1374 | tcSamsungMakerNote); |
1375 | |
1376 | return; |
1377 | |
1378 | } |
1379 | |
1380 | // Casio MakerNote. |
1381 | |
1382 | if (fExif->fMake.StartsWith ("CASIO COMPUTER" ) && |
1383 | memcmp (firstBytes, "QVC\000\000\000" , 6) == 0) |
1384 | { |
1385 | |
1386 | ParseMakerNoteIFD (host, |
1387 | stream, |
1388 | makerNoteCount - 6, |
1389 | makerNoteOffset + 6, |
1390 | makerNoteOffset, |
1391 | minOffset, |
1392 | maxOffset, |
1393 | tcCasioMakerNote); |
1394 | |
1395 | return; |
1396 | |
1397 | } |
1398 | |
1399 | } |
1400 | |
1401 | /*****************************************************************************/ |
1402 | |
1403 | void dng_info::ParseSonyPrivateData (dng_host & /* host */, |
1404 | dng_stream & /* stream */, |
1405 | uint64 /* count */, |
1406 | uint64 /* oldOffset */, |
1407 | uint64 /* newOffset */) |
1408 | { |
1409 | |
1410 | // Sony private data is encrypted, sorry. |
1411 | |
1412 | } |
1413 | |
1414 | /*****************************************************************************/ |
1415 | |
1416 | void dng_info::ParseDNGPrivateData (dng_host &host, |
1417 | dng_stream &stream) |
1418 | { |
1419 | |
1420 | if (fShared->fDNGPrivateDataCount < 2) |
1421 | { |
1422 | return; |
1423 | } |
1424 | |
1425 | // DNG private data should always start with a null-terminated |
1426 | // company name, to define the format of the private data. |
1427 | |
1428 | dng_string privateName; |
1429 | |
1430 | { |
1431 | |
1432 | char buffer [64]; |
1433 | |
1434 | stream.SetReadPosition (fShared->fDNGPrivateDataOffset); |
1435 | |
1436 | uint32 readLength = Min_uint32 (fShared->fDNGPrivateDataCount, |
1437 | sizeof (buffer) - 1); |
1438 | |
1439 | stream.Get (buffer, readLength); |
1440 | |
1441 | buffer [readLength] = 0; |
1442 | |
1443 | privateName.Set (buffer); |
1444 | |
1445 | } |
1446 | |
1447 | // Pentax is storing their MakerNote in the DNGPrivateData data. |
1448 | |
1449 | if (privateName.StartsWith ("PENTAX" ) || |
1450 | privateName.StartsWith ("SAMSUNG" )) |
1451 | { |
1452 | |
1453 | #if qDNGValidate |
1454 | |
1455 | if (gVerbose) |
1456 | { |
1457 | printf ("Parsing Pentax/Samsung DNGPrivateData\n\n" ); |
1458 | } |
1459 | |
1460 | #endif |
1461 | |
1462 | stream.SetReadPosition (fShared->fDNGPrivateDataOffset + 8); |
1463 | |
1464 | bool bigEndian = stream.BigEndian (); |
1465 | |
1466 | uint16 endianMark = stream.Get_uint16 (); |
1467 | |
1468 | if (endianMark == byteOrderMM) |
1469 | { |
1470 | bigEndian = true; |
1471 | } |
1472 | |
1473 | else if (endianMark == byteOrderII) |
1474 | { |
1475 | bigEndian = false; |
1476 | } |
1477 | |
1478 | TempBigEndian temp_endian (stream, bigEndian); |
1479 | |
1480 | ParseMakerNoteIFD (host, |
1481 | stream, |
1482 | fShared->fDNGPrivateDataCount - 10, |
1483 | fShared->fDNGPrivateDataOffset + 10, |
1484 | fShared->fDNGPrivateDataOffset, |
1485 | fShared->fDNGPrivateDataOffset, |
1486 | fShared->fDNGPrivateDataOffset + fShared->fDNGPrivateDataCount, |
1487 | tcPentaxMakerNote); |
1488 | |
1489 | return; |
1490 | |
1491 | } |
1492 | |
1493 | // Stop parsing if this is not an Adobe format block. |
1494 | |
1495 | if (!privateName.Matches ("Adobe" )) |
1496 | { |
1497 | return; |
1498 | } |
1499 | |
1500 | TempBigEndian temp_order (stream); |
1501 | |
1502 | uint32 section_offset = 6; |
1503 | |
1504 | while (SafeUint32Add(section_offset, 8) < fShared->fDNGPrivateDataCount) |
1505 | { |
1506 | |
1507 | stream.SetReadPosition (SafeUint64Add(fShared->fDNGPrivateDataOffset, |
1508 | section_offset)); |
1509 | |
1510 | uint32 section_key = stream.Get_uint32 (); |
1511 | uint32 section_count = stream.Get_uint32 (); |
1512 | |
1513 | if (section_key == DNG_CHAR4 ('M','a','k','N') && section_count > 6) |
1514 | { |
1515 | |
1516 | #if qDNGValidate |
1517 | |
1518 | if (gVerbose) |
1519 | { |
1520 | printf ("Found MakerNote inside DNGPrivateData\n\n" ); |
1521 | } |
1522 | |
1523 | #endif |
1524 | |
1525 | uint16 order_mark = stream.Get_uint16 (); |
1526 | int64 old_offset = stream.Get_uint32 (); |
1527 | |
1528 | uint32 tempSize = SafeUint32Sub(section_count, 6); |
1529 | |
1530 | AutoPtr<dng_memory_block> tempBlock (host.Allocate (tempSize)); |
1531 | |
1532 | uint64 positionInOriginalFile = stream.PositionInOriginalFile(); |
1533 | |
1534 | stream.Get (tempBlock->Buffer (), tempSize); |
1535 | |
1536 | dng_stream tempStream (tempBlock->Buffer (), |
1537 | tempSize, |
1538 | positionInOriginalFile); |
1539 | |
1540 | tempStream.SetBigEndian (order_mark == byteOrderMM); |
1541 | |
1542 | ParseMakerNote (host, |
1543 | tempStream, |
1544 | tempSize, |
1545 | 0, |
1546 | 0 - old_offset, |
1547 | 0, |
1548 | tempSize); |
1549 | |
1550 | } |
1551 | |
1552 | else if (section_key == DNG_CHAR4 ('S','R','2',' ') && section_count > 6) |
1553 | { |
1554 | |
1555 | #if qDNGValidate |
1556 | |
1557 | if (gVerbose) |
1558 | { |
1559 | printf ("Found Sony private data inside DNGPrivateData\n\n" ); |
1560 | } |
1561 | |
1562 | #endif |
1563 | |
1564 | uint16 order_mark = stream.Get_uint16 (); |
1565 | uint64 old_offset = stream.Get_uint32 (); |
1566 | |
1567 | uint64 new_offset = fShared->fDNGPrivateDataOffset + section_offset + 14; |
1568 | |
1569 | TempBigEndian sr2_order (stream, order_mark == byteOrderMM); |
1570 | |
1571 | ParseSonyPrivateData (host, |
1572 | stream, |
1573 | section_count - 6, |
1574 | old_offset, |
1575 | new_offset); |
1576 | |
1577 | } |
1578 | |
1579 | else if (section_key == DNG_CHAR4 ('R','A','F',' ') && section_count > 4) |
1580 | { |
1581 | |
1582 | #if qDNGValidate |
1583 | |
1584 | if (gVerbose) |
1585 | { |
1586 | printf ("Found Fuji RAF tags inside DNGPrivateData\n\n" ); |
1587 | } |
1588 | |
1589 | #endif |
1590 | |
1591 | uint16 order_mark = stream.Get_uint16 (); |
1592 | |
1593 | uint32 tagCount = stream.Get_uint32 (); |
1594 | |
1595 | uint64 tagOffset = stream.Position (); |
1596 | |
1597 | if (tagCount) |
1598 | { |
1599 | |
1600 | TempBigEndian raf_order (stream, order_mark == byteOrderMM); |
1601 | |
1602 | ParseTag (host, |
1603 | stream, |
1604 | fExif.Get (), |
1605 | fShared.Get (), |
1606 | NULL, |
1607 | tcFujiRAF, |
1608 | tcFujiHeader, |
1609 | ttUndefined, |
1610 | tagCount, |
1611 | tagOffset, |
1612 | 0); |
1613 | |
1614 | stream.SetReadPosition (SafeUint64Add(tagOffset, tagCount)); |
1615 | |
1616 | } |
1617 | |
1618 | tagCount = stream.Get_uint32 (); |
1619 | |
1620 | tagOffset = stream.Position (); |
1621 | |
1622 | if (tagCount) |
1623 | { |
1624 | |
1625 | TempBigEndian raf_order (stream, order_mark == byteOrderMM); |
1626 | |
1627 | ParseTag (host, |
1628 | stream, |
1629 | fExif.Get (), |
1630 | fShared.Get (), |
1631 | NULL, |
1632 | tcFujiRAF, |
1633 | tcFujiRawInfo1, |
1634 | ttUndefined, |
1635 | tagCount, |
1636 | tagOffset, |
1637 | 0); |
1638 | |
1639 | stream.SetReadPosition (SafeUint64Add(tagOffset, tagCount)); |
1640 | |
1641 | } |
1642 | |
1643 | tagCount = stream.Get_uint32 (); |
1644 | |
1645 | tagOffset = stream.Position (); |
1646 | |
1647 | if (tagCount) |
1648 | { |
1649 | |
1650 | TempBigEndian raf_order (stream, order_mark == byteOrderMM); |
1651 | |
1652 | ParseTag (host, |
1653 | stream, |
1654 | fExif.Get (), |
1655 | fShared.Get (), |
1656 | NULL, |
1657 | tcFujiRAF, |
1658 | tcFujiRawInfo2, |
1659 | ttUndefined, |
1660 | tagCount, |
1661 | tagOffset, |
1662 | 0); |
1663 | |
1664 | stream.SetReadPosition (SafeUint64Add(tagOffset, tagCount)); |
1665 | |
1666 | } |
1667 | |
1668 | } |
1669 | |
1670 | else if (section_key == DNG_CHAR4 ('C','n','t','x') && section_count > 4) |
1671 | { |
1672 | |
1673 | #if qDNGValidate |
1674 | |
1675 | if (gVerbose) |
1676 | { |
1677 | printf ("Found Contax Raw header inside DNGPrivateData\n\n" ); |
1678 | } |
1679 | |
1680 | #endif |
1681 | |
1682 | uint16 order_mark = stream.Get_uint16 (); |
1683 | |
1684 | uint32 tagCount = stream.Get_uint32 (); |
1685 | |
1686 | uint64 tagOffset = stream.Position (); |
1687 | |
1688 | if (tagCount) |
1689 | { |
1690 | |
1691 | TempBigEndian contax_order (stream, order_mark == byteOrderMM); |
1692 | |
1693 | ParseTag (host, |
1694 | stream, |
1695 | fExif.Get (), |
1696 | fShared.Get (), |
1697 | NULL, |
1698 | tcContaxRAW, |
1699 | tcContaxHeader, |
1700 | ttUndefined, |
1701 | tagCount, |
1702 | tagOffset, |
1703 | 0); |
1704 | |
1705 | } |
1706 | |
1707 | } |
1708 | |
1709 | else if (section_key == DNG_CHAR4 ('C','R','W',' ') && section_count > 4) |
1710 | { |
1711 | |
1712 | #if qDNGValidate |
1713 | |
1714 | if (gVerbose) |
1715 | { |
1716 | printf ("Found Canon CRW tags inside DNGPrivateData\n\n" ); |
1717 | } |
1718 | |
1719 | #endif |
1720 | |
1721 | uint16 order_mark = stream.Get_uint16 (); |
1722 | uint32 entries = stream.Get_uint16 (); |
1723 | |
1724 | uint64 crwTagStart = stream.Position (); |
1725 | |
1726 | for (uint32 parsePass = 1; parsePass <= 2; parsePass++) |
1727 | { |
1728 | |
1729 | stream.SetReadPosition (crwTagStart); |
1730 | |
1731 | for (uint32 index = 0; index < entries; index++) |
1732 | { |
1733 | |
1734 | uint32 tagCode = stream.Get_uint16 (); |
1735 | |
1736 | uint32 tagCount = stream.Get_uint32 (); |
1737 | |
1738 | uint64 tagOffset = stream.Position (); |
1739 | |
1740 | // We need to grab the model id tag first, and then all the |
1741 | // other tags. |
1742 | |
1743 | if ((parsePass == 1) == (tagCode == 0x5834)) |
1744 | { |
1745 | |
1746 | TempBigEndian tag_order (stream, order_mark == byteOrderMM); |
1747 | |
1748 | ParseTag (host, |
1749 | stream, |
1750 | fExif.Get (), |
1751 | fShared.Get (), |
1752 | NULL, |
1753 | tcCanonCRW, |
1754 | tagCode, |
1755 | ttUndefined, |
1756 | tagCount, |
1757 | tagOffset, |
1758 | 0); |
1759 | |
1760 | } |
1761 | |
1762 | stream.SetReadPosition (tagOffset + tagCount); |
1763 | |
1764 | } |
1765 | |
1766 | } |
1767 | |
1768 | } |
1769 | |
1770 | else if (section_count > 4) |
1771 | { |
1772 | |
1773 | uint32 parentCode = 0; |
1774 | |
1775 | bool code32 = false; |
1776 | bool hasType = true; |
1777 | |
1778 | switch (section_key) |
1779 | { |
1780 | |
1781 | case DNG_CHAR4 ('M','R','W',' '): |
1782 | { |
1783 | parentCode = tcMinoltaMRW; |
1784 | code32 = true; |
1785 | hasType = false; |
1786 | break; |
1787 | } |
1788 | |
1789 | case DNG_CHAR4 ('P','a','n','o'): |
1790 | { |
1791 | parentCode = tcPanasonicRAW; |
1792 | break; |
1793 | } |
1794 | |
1795 | case DNG_CHAR4 ('L','e','a','f'): |
1796 | { |
1797 | parentCode = tcLeafMOS; |
1798 | break; |
1799 | } |
1800 | |
1801 | case DNG_CHAR4 ('K','o','d','a'): |
1802 | { |
1803 | parentCode = tcKodakDCRPrivateIFD; |
1804 | break; |
1805 | } |
1806 | |
1807 | case DNG_CHAR4 ('K','D','C',' '): |
1808 | { |
1809 | parentCode = tcKodakKDCPrivateIFD; |
1810 | break; |
1811 | } |
1812 | |
1813 | default: |
1814 | break; |
1815 | |
1816 | } |
1817 | |
1818 | if (parentCode) |
1819 | { |
1820 | |
1821 | #if qDNGValidate |
1822 | |
1823 | if (gVerbose) |
1824 | { |
1825 | printf ("Found %s tags inside DNGPrivateData\n\n" , |
1826 | LookupParentCode (parentCode)); |
1827 | } |
1828 | |
1829 | #endif |
1830 | |
1831 | uint16 order_mark = stream.Get_uint16 (); |
1832 | uint32 entries = stream.Get_uint16 (); |
1833 | |
1834 | for (uint32 index = 0; index < entries; index++) |
1835 | { |
1836 | |
1837 | uint32 tagCode = code32 ? stream.Get_uint32 () |
1838 | : stream.Get_uint16 (); |
1839 | |
1840 | uint32 tagType = hasType ? stream.Get_uint16 () |
1841 | : ttUndefined; |
1842 | |
1843 | uint32 tagCount = stream.Get_uint32 (); |
1844 | |
1845 | uint32 tagSize = SafeUint32Mult(tagCount, TagTypeSize (tagType)); |
1846 | |
1847 | uint64 tagOffset = stream.Position (); |
1848 | |
1849 | TempBigEndian tag_order (stream, order_mark == byteOrderMM); |
1850 | |
1851 | ParseTag (host, |
1852 | stream, |
1853 | fExif.Get (), |
1854 | fShared.Get (), |
1855 | NULL, |
1856 | parentCode, |
1857 | tagCode, |
1858 | tagType, |
1859 | tagCount, |
1860 | tagOffset, |
1861 | 0); |
1862 | |
1863 | stream.SetReadPosition (SafeUint64Add(tagOffset, tagSize)); |
1864 | |
1865 | } |
1866 | |
1867 | } |
1868 | |
1869 | } |
1870 | |
1871 | section_offset = SafeUint32Add(section_offset, 8); |
1872 | section_offset = SafeUint32Add(section_offset, section_count); |
1873 | |
1874 | if (section_offset & 1) |
1875 | { |
1876 | section_offset = SafeUint32Add(section_offset, 1); |
1877 | } |
1878 | |
1879 | } |
1880 | |
1881 | } |
1882 | |
1883 | /*****************************************************************************/ |
1884 | |
1885 | void dng_info::Parse (dng_host &host, |
1886 | dng_stream &stream) |
1887 | { |
1888 | |
1889 | fTIFFBlockOffset = stream.Position (); |
1890 | |
1891 | fTIFFBlockOriginalOffset = stream.PositionInOriginalFile (); |
1892 | |
1893 | // Check byte order indicator. |
1894 | |
1895 | uint16 byteOrder = stream.Get_uint16 (); |
1896 | |
1897 | if (byteOrder == byteOrderII) |
1898 | { |
1899 | |
1900 | fBigEndian = false; |
1901 | |
1902 | #if qDNGValidate |
1903 | |
1904 | if (gVerbose) |
1905 | { |
1906 | printf ("\nUses little-endian byte order\n" ); |
1907 | } |
1908 | |
1909 | #endif |
1910 | |
1911 | stream.SetLittleEndian (); |
1912 | |
1913 | } |
1914 | |
1915 | else if (byteOrder == byteOrderMM) |
1916 | { |
1917 | |
1918 | fBigEndian = true; |
1919 | |
1920 | #if qDNGValidate |
1921 | |
1922 | if (gVerbose) |
1923 | { |
1924 | printf ("\nUses big-endian byte order\n" ); |
1925 | } |
1926 | |
1927 | #endif |
1928 | |
1929 | stream.SetBigEndian (); |
1930 | |
1931 | } |
1932 | |
1933 | else |
1934 | { |
1935 | |
1936 | #if qDNGValidate |
1937 | |
1938 | ReportError ("Unknown byte order" ); |
1939 | |
1940 | #endif |
1941 | |
1942 | ThrowBadFormat (); |
1943 | |
1944 | } |
1945 | |
1946 | // Check "magic number" indicator. |
1947 | |
1948 | fMagic = stream.Get_uint16 (); |
1949 | |
1950 | #if qDNGValidate |
1951 | |
1952 | if (gVerbose) |
1953 | { |
1954 | printf ("Magic number = %u\n\n" , (unsigned) fMagic); |
1955 | } |
1956 | |
1957 | #endif |
1958 | |
1959 | ValidateMagic (); |
1960 | |
1961 | // Parse IFD 0. |
1962 | |
1963 | uint64 next_offset = stream.Get_uint32 (); |
1964 | |
1965 | fExif.Reset (host.Make_dng_exif ()); |
1966 | |
1967 | fShared.Reset (host.Make_dng_shared ()); |
1968 | |
1969 | fIFD [0].Reset (host.Make_dng_ifd ()); |
1970 | |
1971 | ParseIFD (host, |
1972 | stream, |
1973 | fExif.Get (), |
1974 | fShared.Get (), |
1975 | fIFD [0].Get (), |
1976 | fTIFFBlockOffset + next_offset, |
1977 | fTIFFBlockOffset, |
1978 | 0); |
1979 | |
1980 | next_offset = fIFD [0]->fNextIFD; |
1981 | |
1982 | fIFDCount = 1; |
1983 | |
1984 | // Parse chained IFDs. |
1985 | |
1986 | while (next_offset) |
1987 | { |
1988 | |
1989 | if (next_offset >= stream.Length ()) |
1990 | { |
1991 | |
1992 | #if qDNGValidate |
1993 | |
1994 | { |
1995 | |
1996 | ReportWarning ("Chained IFD offset past end of stream" ); |
1997 | |
1998 | } |
1999 | |
2000 | #endif |
2001 | |
2002 | break; |
2003 | |
2004 | } |
2005 | |
2006 | // Some TIFF file writers forget about the next IFD offset, so |
2007 | // validate the IFD at that offset before parsing it. |
2008 | |
2009 | if (!ValidateIFD (stream, |
2010 | fTIFFBlockOffset + next_offset, |
2011 | fTIFFBlockOffset)) |
2012 | { |
2013 | |
2014 | #if qDNGValidate |
2015 | |
2016 | { |
2017 | |
2018 | ReportWarning ("Chained IFD is not valid" ); |
2019 | |
2020 | } |
2021 | |
2022 | #endif |
2023 | |
2024 | break; |
2025 | |
2026 | } |
2027 | |
2028 | if (fChainedIFDCount == kMaxChainedIFDs) |
2029 | { |
2030 | |
2031 | #if qDNGValidate |
2032 | |
2033 | { |
2034 | |
2035 | ReportWarning ("Chained IFD count exceeds DNG SDK parsing limit" ); |
2036 | |
2037 | } |
2038 | |
2039 | #endif |
2040 | |
2041 | break; |
2042 | |
2043 | } |
2044 | |
2045 | fChainedIFD [fChainedIFDCount].Reset (host.Make_dng_ifd ()); |
2046 | |
2047 | ParseIFD (host, |
2048 | stream, |
2049 | NULL, |
2050 | NULL, |
2051 | fChainedIFD [fChainedIFDCount].Get (), |
2052 | fTIFFBlockOffset + next_offset, |
2053 | fTIFFBlockOffset, |
2054 | tcFirstChainedIFD + fChainedIFDCount); |
2055 | |
2056 | next_offset = fChainedIFD [fChainedIFDCount]->fNextIFD; |
2057 | |
2058 | fChainedIFDCount++; |
2059 | |
2060 | } |
2061 | |
2062 | // Parse SubIFDs. |
2063 | |
2064 | uint32 searchedIFDs = 0; |
2065 | |
2066 | bool tooManySubIFDs = false; |
2067 | |
2068 | while (searchedIFDs < fIFDCount && !tooManySubIFDs) |
2069 | { |
2070 | |
2071 | uint32 searchLimit = fIFDCount; |
2072 | |
2073 | for (uint32 searchIndex = searchedIFDs; |
2074 | searchIndex < searchLimit && !tooManySubIFDs; |
2075 | searchIndex++) |
2076 | { |
2077 | |
2078 | for (uint32 subIndex = 0; |
2079 | subIndex < fIFD [searchIndex]->fSubIFDsCount; |
2080 | subIndex++) |
2081 | { |
2082 | |
2083 | if (fIFDCount == kMaxSubIFDs + 1) |
2084 | { |
2085 | |
2086 | tooManySubIFDs = true; |
2087 | |
2088 | break; |
2089 | |
2090 | } |
2091 | |
2092 | stream.SetReadPosition (fIFD [searchIndex]->fSubIFDsOffset + |
2093 | subIndex * 4); |
2094 | |
2095 | uint32 sub_ifd_offset = stream.Get_uint32 (); |
2096 | |
2097 | fIFD [fIFDCount].Reset (host.Make_dng_ifd ()); |
2098 | |
2099 | ParseIFD (host, |
2100 | stream, |
2101 | fExif.Get (), |
2102 | fShared.Get (), |
2103 | fIFD [fIFDCount].Get (), |
2104 | fTIFFBlockOffset + sub_ifd_offset, |
2105 | fTIFFBlockOffset, |
2106 | tcFirstSubIFD + fIFDCount - 1); |
2107 | |
2108 | fIFDCount++; |
2109 | |
2110 | } |
2111 | |
2112 | searchedIFDs = searchLimit; |
2113 | |
2114 | } |
2115 | |
2116 | } |
2117 | |
2118 | #if qDNGValidate |
2119 | |
2120 | { |
2121 | |
2122 | if (tooManySubIFDs) |
2123 | { |
2124 | |
2125 | ReportWarning ("SubIFD count exceeds DNG SDK parsing limit" ); |
2126 | |
2127 | } |
2128 | |
2129 | } |
2130 | |
2131 | #endif |
2132 | |
2133 | // Parse EXIF IFD. |
2134 | |
2135 | if (fShared->fExifIFD) |
2136 | { |
2137 | |
2138 | ParseIFD (host, |
2139 | stream, |
2140 | fExif.Get (), |
2141 | fShared.Get (), |
2142 | NULL, |
2143 | fTIFFBlockOffset + fShared->fExifIFD, |
2144 | fTIFFBlockOffset, |
2145 | tcExifIFD); |
2146 | |
2147 | } |
2148 | |
2149 | // Parse GPS IFD. |
2150 | |
2151 | if (fShared->fGPSInfo) |
2152 | { |
2153 | |
2154 | ParseIFD (host, |
2155 | stream, |
2156 | fExif.Get (), |
2157 | fShared.Get (), |
2158 | NULL, |
2159 | fTIFFBlockOffset + fShared->fGPSInfo, |
2160 | fTIFFBlockOffset, |
2161 | tcGPSInfo); |
2162 | |
2163 | } |
2164 | |
2165 | // Parse Interoperability IFD. |
2166 | |
2167 | if (fShared->fInteroperabilityIFD) |
2168 | { |
2169 | |
2170 | // Some Kodak KDC files have bogus Interoperability IFDs, so |
2171 | // validate the IFD before trying to parse it. |
2172 | |
2173 | if (ValidateIFD (stream, |
2174 | fTIFFBlockOffset + fShared->fInteroperabilityIFD, |
2175 | fTIFFBlockOffset)) |
2176 | { |
2177 | |
2178 | ParseIFD (host, |
2179 | stream, |
2180 | fExif.Get (), |
2181 | fShared.Get (), |
2182 | NULL, |
2183 | fTIFFBlockOffset + fShared->fInteroperabilityIFD, |
2184 | fTIFFBlockOffset, |
2185 | tcInteroperabilityIFD); |
2186 | |
2187 | } |
2188 | |
2189 | #if qDNGValidate |
2190 | |
2191 | else |
2192 | { |
2193 | |
2194 | ReportWarning ("The Interoperability IFD is not a valid IFD" ); |
2195 | |
2196 | } |
2197 | |
2198 | #endif |
2199 | |
2200 | } |
2201 | |
2202 | // Parse Kodak DCR Private IFD. |
2203 | |
2204 | if (fShared->fKodakDCRPrivateIFD) |
2205 | { |
2206 | |
2207 | ParseIFD (host, |
2208 | stream, |
2209 | fExif.Get (), |
2210 | fShared.Get (), |
2211 | NULL, |
2212 | fTIFFBlockOffset + fShared->fKodakDCRPrivateIFD, |
2213 | fTIFFBlockOffset, |
2214 | tcKodakDCRPrivateIFD); |
2215 | |
2216 | } |
2217 | |
2218 | // Parse Kodak KDC Private IFD. |
2219 | |
2220 | if (fShared->fKodakKDCPrivateIFD) |
2221 | { |
2222 | |
2223 | ParseIFD (host, |
2224 | stream, |
2225 | fExif.Get (), |
2226 | fShared.Get (), |
2227 | NULL, |
2228 | fTIFFBlockOffset + fShared->fKodakKDCPrivateIFD, |
2229 | fTIFFBlockOffset, |
2230 | tcKodakKDCPrivateIFD); |
2231 | |
2232 | } |
2233 | |
2234 | // Parse MakerNote tag. |
2235 | |
2236 | if (fShared->fMakerNoteCount) |
2237 | { |
2238 | |
2239 | ParseMakerNote (host, |
2240 | stream, |
2241 | (uint32) (fTIFFBlockOffset + fShared->fMakerNoteCount), |
2242 | fShared->fMakerNoteOffset, |
2243 | fTIFFBlockOffset, |
2244 | 0, |
2245 | stream.Length ()); |
2246 | |
2247 | } |
2248 | |
2249 | // Parse DNGPrivateData tag. |
2250 | |
2251 | if (fShared->fDNGPrivateDataCount && |
2252 | fShared->fDNGVersion) |
2253 | { |
2254 | |
2255 | ParseDNGPrivateData (host, stream); |
2256 | |
2257 | } |
2258 | |
2259 | #if qDNGValidate |
2260 | |
2261 | // If we are running dng_validate on stand-alone camera profile file, |
2262 | // complete the validation of the profile. |
2263 | |
2264 | if (fMagic == magicExtendedProfile) |
2265 | { |
2266 | |
2267 | dng_camera_profile_info &profileInfo = fShared->fCameraProfile; |
2268 | |
2269 | dng_camera_profile profile; |
2270 | |
2271 | profile.Parse (stream, profileInfo); |
2272 | |
2273 | if (profileInfo.fColorPlanes < 3 || !profile.IsValid (profileInfo.fColorPlanes)) |
2274 | { |
2275 | |
2276 | ReportError ("Invalid camera profile file" ); |
2277 | |
2278 | } |
2279 | |
2280 | } |
2281 | |
2282 | #endif |
2283 | |
2284 | } |
2285 | |
2286 | /*****************************************************************************/ |
2287 | |
2288 | void dng_info::PostParse (dng_host &host) |
2289 | { |
2290 | |
2291 | uint32 index; |
2292 | |
2293 | fExif->PostParse (host, *fShared.Get ()); |
2294 | |
2295 | fShared->PostParse (host, *fExif.Get ()); |
2296 | |
2297 | for (index = 0; index < fIFDCount; index++) |
2298 | { |
2299 | |
2300 | fIFD [index]->PostParse (); |
2301 | |
2302 | } |
2303 | |
2304 | for (index = 0; index < fChainedIFDCount; index++) |
2305 | { |
2306 | |
2307 | fChainedIFD [index]->PostParse (); |
2308 | |
2309 | } |
2310 | |
2311 | if (fShared->fDNGVersion != 0) |
2312 | { |
2313 | |
2314 | // Find main IFD. |
2315 | |
2316 | fMainIndex = -1; |
2317 | |
2318 | for (index = 0; index < fIFDCount; index++) |
2319 | { |
2320 | |
2321 | if (fIFD [index]->fUsesNewSubFileType && |
2322 | fIFD [index]->fNewSubFileType == sfMainImage) |
2323 | { |
2324 | |
2325 | if (fMainIndex == -1) |
2326 | { |
2327 | |
2328 | fMainIndex = index; |
2329 | |
2330 | } |
2331 | |
2332 | #if qDNGValidate |
2333 | |
2334 | else |
2335 | { |
2336 | |
2337 | ReportError ("Multiple IFDs marked as main image" ); |
2338 | |
2339 | } |
2340 | |
2341 | #endif |
2342 | |
2343 | } |
2344 | |
2345 | else if (fIFD [index]->fNewSubFileType == sfPreviewImage || |
2346 | fIFD [index]->fNewSubFileType == sfAltPreviewImage) |
2347 | { |
2348 | |
2349 | // Fill in default color space for DNG previews if not included. |
2350 | |
2351 | if (fIFD [index]->fPreviewInfo.fColorSpace == previewColorSpace_MaxEnum) |
2352 | { |
2353 | |
2354 | if (fIFD [index]->fSamplesPerPixel == 1) |
2355 | { |
2356 | |
2357 | fIFD [index]->fPreviewInfo.fColorSpace = previewColorSpace_GrayGamma22; |
2358 | |
2359 | } |
2360 | |
2361 | else |
2362 | { |
2363 | |
2364 | fIFD [index]->fPreviewInfo.fColorSpace = previewColorSpace_sRGB; |
2365 | |
2366 | } |
2367 | |
2368 | } |
2369 | |
2370 | } |
2371 | |
2372 | } |
2373 | |
2374 | // Deal with lossless JPEG bug in early DNG versions. |
2375 | |
2376 | if (fShared->fDNGVersion < dngVersion_1_1_0_0) |
2377 | { |
2378 | |
2379 | if (fMainIndex != -1) |
2380 | { |
2381 | |
2382 | fIFD [fMainIndex]->fLosslessJPEGBug16 = true; |
2383 | |
2384 | } |
2385 | |
2386 | } |
2387 | |
2388 | // Find mask index. |
2389 | |
2390 | for (index = 0; index < fIFDCount; index++) |
2391 | { |
2392 | |
2393 | if (fIFD [index]->fNewSubFileType == sfTransparencyMask) |
2394 | { |
2395 | |
2396 | if (fMaskIndex == -1) |
2397 | { |
2398 | |
2399 | fMaskIndex = index; |
2400 | |
2401 | } |
2402 | |
2403 | #if qDNGValidate |
2404 | |
2405 | else |
2406 | { |
2407 | |
2408 | ReportError ("Multiple IFDs marked as transparency mask image" ); |
2409 | |
2410 | } |
2411 | |
2412 | #endif |
2413 | |
2414 | } |
2415 | |
2416 | } |
2417 | |
2418 | // Warn about Chained IFDs. |
2419 | |
2420 | #if qDNGValidate |
2421 | |
2422 | if (fChainedIFDCount > 0) |
2423 | { |
2424 | |
2425 | ReportWarning ("This file has Chained IFDs, which will be ignored by DNG readers" ); |
2426 | |
2427 | } |
2428 | |
2429 | #endif |
2430 | |
2431 | } |
2432 | |
2433 | } |
2434 | |
2435 | /*****************************************************************************/ |
2436 | |
2437 | bool dng_info::IsValidDNG () |
2438 | { |
2439 | |
2440 | // Check shared info. |
2441 | |
2442 | if (!fShared->IsValidDNG ()) |
2443 | { |
2444 | |
2445 | return false; |
2446 | |
2447 | } |
2448 | |
2449 | // Check TIFF magic number. |
2450 | |
2451 | if (fMagic != 42) |
2452 | { |
2453 | |
2454 | #if qDNGValidate |
2455 | |
2456 | ReportError ("Invalid TIFF magic number" ); |
2457 | |
2458 | #endif |
2459 | |
2460 | return false; |
2461 | |
2462 | } |
2463 | |
2464 | // Make sure we have a main image IFD. |
2465 | |
2466 | if (fMainIndex == -1) |
2467 | { |
2468 | |
2469 | #if qDNGValidate |
2470 | |
2471 | ReportError ("Unable to find main image IFD" ); |
2472 | |
2473 | #endif |
2474 | |
2475 | return false; |
2476 | |
2477 | } |
2478 | |
2479 | // Make sure is each IFD is valid. |
2480 | |
2481 | for (uint32 index = 0; index < fIFDCount; index++) |
2482 | { |
2483 | |
2484 | uint32 parentCode = (index == 0 ? 0 : tcFirstSubIFD + index - 1); |
2485 | |
2486 | if (!fIFD [index]->IsValidDNG (*fShared.Get (), |
2487 | parentCode)) |
2488 | { |
2489 | |
2490 | // Only errors in the main and transparency mask IFDs are fatal to parsing. |
2491 | |
2492 | if (index == (uint32) fMainIndex || |
2493 | index == (uint32) fMaskIndex) |
2494 | { |
2495 | |
2496 | return false; |
2497 | |
2498 | } |
2499 | |
2500 | } |
2501 | |
2502 | } |
2503 | |
2504 | return true; |
2505 | |
2506 | } |
2507 | |
2508 | /*****************************************************************************/ |
2509 | |