1 | /*****************************************************************************/ |
2 | // Copyright 2007-2011 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_preview.cpp#1 $ */ |
10 | /* $DateTime: 2012/05/30 13:28:51 $ */ |
11 | /* $Change: 832332 $ */ |
12 | /* $Author: tknoll $ */ |
13 | |
14 | /*****************************************************************************/ |
15 | |
16 | #include "dng_preview.h" |
17 | |
18 | #include "dng_assertions.h" |
19 | #include "dng_image.h" |
20 | #include "dng_image_writer.h" |
21 | #include "dng_memory.h" |
22 | #include "dng_stream.h" |
23 | #include "dng_tag_codes.h" |
24 | #include "dng_tag_values.h" |
25 | |
26 | /*****************************************************************************/ |
27 | |
28 | class dng_preview_tag_set: public dng_basic_tag_set |
29 | { |
30 | |
31 | private: |
32 | |
33 | tag_string fApplicationNameTag; |
34 | |
35 | tag_string fApplicationVersionTag; |
36 | |
37 | tag_string fSettingsNameTag; |
38 | |
39 | dng_fingerprint fSettingsDigest; |
40 | |
41 | tag_uint8_ptr fSettingsDigestTag; |
42 | |
43 | tag_uint32 fColorSpaceTag; |
44 | |
45 | tag_string fDateTimeTag; |
46 | |
47 | tag_real64 fRawToPreviewGainTag; |
48 | |
49 | tag_uint32 fCacheVersionTag; |
50 | |
51 | public: |
52 | |
53 | dng_preview_tag_set (dng_tiff_directory &directory, |
54 | const dng_preview &preview, |
55 | const dng_ifd &ifd); |
56 | |
57 | virtual ~dng_preview_tag_set (); |
58 | |
59 | }; |
60 | |
61 | /*****************************************************************************/ |
62 | |
63 | dng_preview_tag_set::dng_preview_tag_set (dng_tiff_directory &directory, |
64 | const dng_preview &preview, |
65 | const dng_ifd &ifd) |
66 | |
67 | : dng_basic_tag_set (directory, ifd) |
68 | |
69 | , fApplicationNameTag (tcPreviewApplicationName, |
70 | preview.fInfo.fApplicationName, |
71 | false) |
72 | |
73 | , fApplicationVersionTag (tcPreviewApplicationVersion, |
74 | preview.fInfo.fApplicationVersion, |
75 | false) |
76 | |
77 | , fSettingsNameTag (tcPreviewSettingsName, |
78 | preview.fInfo.fSettingsName, |
79 | false) |
80 | |
81 | , fSettingsDigest (preview.fInfo.fSettingsDigest) |
82 | |
83 | , fSettingsDigestTag (tcPreviewSettingsDigest, |
84 | fSettingsDigest.data, |
85 | 16) |
86 | |
87 | , fColorSpaceTag (tcPreviewColorSpace, |
88 | preview.fInfo.fColorSpace) |
89 | |
90 | , fDateTimeTag (tcPreviewDateTime, |
91 | preview.fInfo.fDateTime, |
92 | true) |
93 | |
94 | , fRawToPreviewGainTag (tcRawToPreviewGain, |
95 | preview.fInfo.fRawToPreviewGain) |
96 | |
97 | , fCacheVersionTag (tcCacheVersion, |
98 | preview.fInfo.fCacheVersion) |
99 | |
100 | { |
101 | |
102 | if (preview.fInfo.fApplicationName.NotEmpty ()) |
103 | { |
104 | |
105 | directory.Add (&fApplicationNameTag); |
106 | |
107 | } |
108 | |
109 | if (preview.fInfo.fApplicationVersion.NotEmpty ()) |
110 | { |
111 | |
112 | directory.Add (&fApplicationVersionTag); |
113 | |
114 | } |
115 | |
116 | if (preview.fInfo.fSettingsName.NotEmpty ()) |
117 | { |
118 | |
119 | directory.Add (&fSettingsNameTag); |
120 | |
121 | } |
122 | |
123 | if (preview.fInfo.fSettingsDigest.IsValid ()) |
124 | { |
125 | |
126 | directory.Add (&fSettingsDigestTag); |
127 | |
128 | } |
129 | |
130 | if (preview.fInfo.fColorSpace != previewColorSpace_MaxEnum) |
131 | { |
132 | |
133 | directory.Add (&fColorSpaceTag); |
134 | |
135 | } |
136 | |
137 | if (preview.fInfo.fDateTime.NotEmpty ()) |
138 | { |
139 | |
140 | directory.Add (&fDateTimeTag); |
141 | |
142 | } |
143 | |
144 | if (preview.fInfo.fRawToPreviewGain != 1.0) |
145 | { |
146 | |
147 | directory.Add (&fRawToPreviewGainTag); |
148 | |
149 | } |
150 | |
151 | if (preview.fInfo.fCacheVersion != 0) |
152 | { |
153 | |
154 | directory.Add (&fCacheVersionTag); |
155 | |
156 | } |
157 | |
158 | } |
159 | |
160 | /*****************************************************************************/ |
161 | |
162 | dng_preview_tag_set::~dng_preview_tag_set () |
163 | { |
164 | |
165 | } |
166 | |
167 | /*****************************************************************************/ |
168 | |
169 | dng_preview::dng_preview () |
170 | |
171 | : fInfo () |
172 | |
173 | { |
174 | |
175 | } |
176 | |
177 | /*****************************************************************************/ |
178 | |
179 | dng_preview::~dng_preview () |
180 | { |
181 | |
182 | } |
183 | |
184 | /*****************************************************************************/ |
185 | |
186 | dng_image_preview::dng_image_preview () |
187 | |
188 | : fImage () |
189 | , fIFD () |
190 | |
191 | { |
192 | |
193 | } |
194 | |
195 | /*****************************************************************************/ |
196 | |
197 | dng_image_preview::~dng_image_preview () |
198 | { |
199 | |
200 | } |
201 | |
202 | /*****************************************************************************/ |
203 | |
204 | dng_basic_tag_set * dng_image_preview::AddTagSet (dng_tiff_directory &directory) const |
205 | { |
206 | |
207 | fIFD.fNewSubFileType = fInfo.fIsPrimary ? sfPreviewImage |
208 | : sfAltPreviewImage; |
209 | |
210 | fIFD.fImageWidth = fImage->Width (); |
211 | fIFD.fImageLength = fImage->Height (); |
212 | |
213 | fIFD.fSamplesPerPixel = fImage->Planes (); |
214 | |
215 | fIFD.fPhotometricInterpretation = fIFD.fSamplesPerPixel == 1 ? piBlackIsZero |
216 | : piRGB; |
217 | |
218 | fIFD.fBitsPerSample [0] = TagTypeSize (fImage->PixelType ()) * 8; |
219 | |
220 | for (uint32 j = 1; j < fIFD.fSamplesPerPixel; j++) |
221 | { |
222 | fIFD.fBitsPerSample [j] = fIFD.fBitsPerSample [0]; |
223 | } |
224 | |
225 | fIFD.SetSingleStrip (); |
226 | |
227 | return new dng_preview_tag_set (directory, *this, fIFD); |
228 | |
229 | } |
230 | |
231 | /*****************************************************************************/ |
232 | |
233 | void dng_image_preview::WriteData (dng_host &host, |
234 | dng_image_writer &writer, |
235 | dng_basic_tag_set &basic, |
236 | dng_stream &stream) const |
237 | { |
238 | |
239 | writer.WriteImage (host, |
240 | fIFD, |
241 | basic, |
242 | stream, |
243 | *fImage.Get ()); |
244 | |
245 | } |
246 | |
247 | /*****************************************************************************/ |
248 | |
249 | class dng_jpeg_preview_tag_set: public dng_preview_tag_set |
250 | { |
251 | |
252 | private: |
253 | |
254 | dng_urational fCoefficientsData [3]; |
255 | |
256 | tag_urational_ptr fCoefficientsTag; |
257 | |
258 | uint16 fSubSamplingData [2]; |
259 | |
260 | tag_uint16_ptr fSubSamplingTag; |
261 | |
262 | tag_uint16 fPositioningTag; |
263 | |
264 | dng_urational fReferenceData [6]; |
265 | |
266 | tag_urational_ptr fReferenceTag; |
267 | |
268 | public: |
269 | |
270 | dng_jpeg_preview_tag_set (dng_tiff_directory &directory, |
271 | const dng_jpeg_preview &preview, |
272 | const dng_ifd &ifd); |
273 | |
274 | virtual ~dng_jpeg_preview_tag_set (); |
275 | |
276 | }; |
277 | |
278 | /******************************************************************************/ |
279 | |
280 | dng_jpeg_preview_tag_set::dng_jpeg_preview_tag_set (dng_tiff_directory &directory, |
281 | const dng_jpeg_preview &preview, |
282 | const dng_ifd &ifd) |
283 | |
284 | : dng_preview_tag_set (directory, preview, ifd) |
285 | |
286 | , fCoefficientsTag (tcYCbCrCoefficients, fCoefficientsData, 3) |
287 | |
288 | , fSubSamplingTag (tcYCbCrSubSampling, fSubSamplingData, 2) |
289 | |
290 | , fPositioningTag (tcYCbCrPositioning, preview.fYCbCrPositioning) |
291 | |
292 | , fReferenceTag (tcReferenceBlackWhite, fReferenceData, 6) |
293 | |
294 | { |
295 | |
296 | if (preview.fPhotometricInterpretation == piYCbCr) |
297 | { |
298 | |
299 | fCoefficientsData [0] = dng_urational (299, 1000); |
300 | fCoefficientsData [1] = dng_urational (587, 1000); |
301 | fCoefficientsData [2] = dng_urational (114, 1000); |
302 | |
303 | directory.Add (&fCoefficientsTag); |
304 | |
305 | fSubSamplingData [0] = (uint16) preview.fYCbCrSubSampling.h; |
306 | fSubSamplingData [1] = (uint16) preview.fYCbCrSubSampling.v; |
307 | |
308 | directory.Add (&fSubSamplingTag); |
309 | |
310 | directory.Add (&fPositioningTag); |
311 | |
312 | fReferenceData [0] = dng_urational ( 0, 1); |
313 | fReferenceData [1] = dng_urational (255, 1); |
314 | fReferenceData [2] = dng_urational (128, 1); |
315 | fReferenceData [3] = dng_urational (255, 1); |
316 | fReferenceData [4] = dng_urational (128, 1); |
317 | fReferenceData [5] = dng_urational (255, 1); |
318 | |
319 | directory.Add (&fReferenceTag); |
320 | |
321 | } |
322 | |
323 | } |
324 | |
325 | /*****************************************************************************/ |
326 | |
327 | dng_jpeg_preview_tag_set::~dng_jpeg_preview_tag_set () |
328 | { |
329 | |
330 | } |
331 | |
332 | /*****************************************************************************/ |
333 | |
334 | dng_jpeg_preview::dng_jpeg_preview () |
335 | |
336 | : fPreviewSize () |
337 | , fPhotometricInterpretation (piYCbCr) |
338 | , fYCbCrSubSampling (1, 1) |
339 | , fYCbCrPositioning (2) |
340 | , fCompressedData () |
341 | |
342 | { |
343 | |
344 | } |
345 | |
346 | /*****************************************************************************/ |
347 | |
348 | dng_jpeg_preview::~dng_jpeg_preview () |
349 | { |
350 | |
351 | } |
352 | |
353 | /*****************************************************************************/ |
354 | |
355 | dng_basic_tag_set * dng_jpeg_preview::AddTagSet (dng_tiff_directory &directory) const |
356 | { |
357 | |
358 | dng_ifd ifd; |
359 | |
360 | ifd.fNewSubFileType = fInfo.fIsPrimary ? sfPreviewImage |
361 | : sfAltPreviewImage; |
362 | |
363 | ifd.fImageWidth = fPreviewSize.h; |
364 | ifd.fImageLength = fPreviewSize.v; |
365 | |
366 | ifd.fPhotometricInterpretation = fPhotometricInterpretation; |
367 | |
368 | ifd.fBitsPerSample [0] = 8; |
369 | ifd.fBitsPerSample [1] = 8; |
370 | ifd.fBitsPerSample [2] = 8; |
371 | |
372 | ifd.fSamplesPerPixel = (fPhotometricInterpretation == piBlackIsZero ? 1 : 3); |
373 | |
374 | ifd.fCompression = ccJPEG; |
375 | ifd.fPredictor = cpNullPredictor; |
376 | |
377 | ifd.SetSingleStrip (); |
378 | |
379 | return new dng_jpeg_preview_tag_set (directory, *this, ifd); |
380 | |
381 | } |
382 | |
383 | /*****************************************************************************/ |
384 | |
385 | void dng_jpeg_preview::WriteData (dng_host & /* host */, |
386 | dng_image_writer & /* writer */, |
387 | dng_basic_tag_set &basic, |
388 | dng_stream &stream) const |
389 | { |
390 | |
391 | basic.SetTileOffset (0, (uint32) stream.Position ()); |
392 | |
393 | basic.SetTileByteCount (0, fCompressedData->LogicalSize ()); |
394 | |
395 | stream.Put (fCompressedData->Buffer (), |
396 | fCompressedData->LogicalSize ()); |
397 | |
398 | if (fCompressedData->LogicalSize () & 1) |
399 | { |
400 | stream.Put_uint8 (0); |
401 | } |
402 | |
403 | } |
404 | |
405 | /*****************************************************************************/ |
406 | |
407 | void dng_jpeg_preview::SpoolAdobeThumbnail (dng_stream &stream) const |
408 | { |
409 | |
410 | DNG_ASSERT (fCompressedData.Get (), |
411 | "SpoolAdobeThumbnail: no data" ); |
412 | |
413 | DNG_ASSERT (fPhotometricInterpretation == piYCbCr, |
414 | "SpoolAdobeThumbnail: Non-YCbCr" ); |
415 | |
416 | uint32 compressedSize = fCompressedData->LogicalSize (); |
417 | |
418 | stream.Put_uint32 (DNG_CHAR4 ('8','B','I','M')); |
419 | stream.Put_uint16 (1036); |
420 | stream.Put_uint16 (0); |
421 | |
422 | stream.Put_uint32 (compressedSize + 28); |
423 | |
424 | uint32 widthBytes = (fPreviewSize.h * 24 + 31) / 32 * 4; |
425 | |
426 | stream.Put_uint32 (1); |
427 | stream.Put_uint32 (fPreviewSize.h); |
428 | stream.Put_uint32 (fPreviewSize.v); |
429 | stream.Put_uint32 (widthBytes); |
430 | stream.Put_uint32 (widthBytes * fPreviewSize.v); |
431 | stream.Put_uint32 (compressedSize); |
432 | stream.Put_uint16 (24); |
433 | stream.Put_uint16 (1); |
434 | |
435 | stream.Put (fCompressedData->Buffer (), |
436 | compressedSize); |
437 | |
438 | if (compressedSize & 1) |
439 | { |
440 | stream.Put_uint8 (0); |
441 | } |
442 | |
443 | } |
444 | |
445 | /*****************************************************************************/ |
446 | |
447 | class dng_raw_preview_tag_set: public dng_preview_tag_set |
448 | { |
449 | |
450 | private: |
451 | |
452 | tag_data_ptr fOpcodeList2Tag; |
453 | |
454 | tag_uint32_ptr fWhiteLevelTag; |
455 | |
456 | uint32 fWhiteLevelData [kMaxColorPlanes]; |
457 | |
458 | public: |
459 | |
460 | dng_raw_preview_tag_set (dng_tiff_directory &directory, |
461 | const dng_raw_preview &preview, |
462 | const dng_ifd &ifd); |
463 | |
464 | virtual ~dng_raw_preview_tag_set (); |
465 | |
466 | }; |
467 | |
468 | /*****************************************************************************/ |
469 | |
470 | dng_raw_preview_tag_set::dng_raw_preview_tag_set (dng_tiff_directory &directory, |
471 | const dng_raw_preview &preview, |
472 | const dng_ifd &ifd) |
473 | |
474 | : dng_preview_tag_set (directory, preview, ifd) |
475 | |
476 | , fOpcodeList2Tag (tcOpcodeList2, |
477 | ttUndefined, |
478 | 0, |
479 | NULL) |
480 | |
481 | , fWhiteLevelTag (tcWhiteLevel, |
482 | fWhiteLevelData, |
483 | preview.fImage->Planes ()) |
484 | |
485 | { |
486 | |
487 | if (preview.fOpcodeList2Data.Get ()) |
488 | { |
489 | |
490 | fOpcodeList2Tag.SetData (preview.fOpcodeList2Data->Buffer ()); |
491 | fOpcodeList2Tag.SetCount (preview.fOpcodeList2Data->LogicalSize ()); |
492 | |
493 | directory.Add (&fOpcodeList2Tag); |
494 | |
495 | } |
496 | |
497 | if (preview.fImage->PixelType () == ttFloat) |
498 | { |
499 | |
500 | for (uint32 j = 0; j < kMaxColorPlanes; j++) |
501 | { |
502 | fWhiteLevelData [j] = 32768; |
503 | } |
504 | |
505 | directory.Add (&fWhiteLevelTag); |
506 | |
507 | } |
508 | |
509 | } |
510 | |
511 | /*****************************************************************************/ |
512 | |
513 | dng_raw_preview_tag_set::~dng_raw_preview_tag_set () |
514 | { |
515 | |
516 | } |
517 | |
518 | /*****************************************************************************/ |
519 | |
520 | dng_raw_preview::dng_raw_preview () |
521 | |
522 | : fImage () |
523 | , fOpcodeList2Data () |
524 | , fCompressionQuality (-1) |
525 | , fIFD () |
526 | |
527 | { |
528 | |
529 | } |
530 | |
531 | /*****************************************************************************/ |
532 | |
533 | dng_raw_preview::~dng_raw_preview () |
534 | { |
535 | |
536 | } |
537 | |
538 | /*****************************************************************************/ |
539 | |
540 | dng_basic_tag_set * dng_raw_preview::AddTagSet (dng_tiff_directory &directory) const |
541 | { |
542 | |
543 | fIFD.fNewSubFileType = sfPreviewImage; |
544 | |
545 | fIFD.fImageWidth = fImage->Width (); |
546 | fIFD.fImageLength = fImage->Height (); |
547 | |
548 | fIFD.fSamplesPerPixel = fImage->Planes (); |
549 | |
550 | fIFD.fPhotometricInterpretation = piLinearRaw; |
551 | |
552 | if (fImage->PixelType () == ttFloat) |
553 | { |
554 | |
555 | fIFD.fCompression = ccDeflate; |
556 | |
557 | fIFD.fCompressionQuality = fCompressionQuality; |
558 | |
559 | fIFD.fPredictor = cpFloatingPoint; |
560 | |
561 | for (uint32 j = 0; j < fIFD.fSamplesPerPixel; j++) |
562 | { |
563 | fIFD.fBitsPerSample [j] = 16; |
564 | fIFD.fSampleFormat [j] = sfFloatingPoint; |
565 | } |
566 | |
567 | fIFD.FindTileSize (512 * 1024); |
568 | |
569 | } |
570 | |
571 | else |
572 | { |
573 | |
574 | fIFD.fCompression = ccLossyJPEG; |
575 | |
576 | fIFD.fCompressionQuality = fCompressionQuality; |
577 | |
578 | fIFD.fBitsPerSample [0] = TagTypeSize (fImage->PixelType ()) * 8; |
579 | |
580 | for (uint32 j = 1; j < fIFD.fSamplesPerPixel; j++) |
581 | { |
582 | fIFD.fBitsPerSample [j] = fIFD.fBitsPerSample [0]; |
583 | } |
584 | |
585 | fIFD.FindTileSize (512 * 512 * fIFD.fSamplesPerPixel); |
586 | |
587 | } |
588 | |
589 | return new dng_raw_preview_tag_set (directory, *this, fIFD); |
590 | |
591 | } |
592 | |
593 | /*****************************************************************************/ |
594 | |
595 | void dng_raw_preview::WriteData (dng_host &host, |
596 | dng_image_writer &writer, |
597 | dng_basic_tag_set &basic, |
598 | dng_stream &stream) const |
599 | { |
600 | |
601 | writer.WriteImage (host, |
602 | fIFD, |
603 | basic, |
604 | stream, |
605 | *fImage.Get ()); |
606 | |
607 | } |
608 | |
609 | /*****************************************************************************/ |
610 | |
611 | dng_mask_preview::dng_mask_preview () |
612 | |
613 | : fImage () |
614 | , fCompressionQuality (-1) |
615 | , fIFD () |
616 | |
617 | { |
618 | |
619 | } |
620 | |
621 | /*****************************************************************************/ |
622 | |
623 | dng_mask_preview::~dng_mask_preview () |
624 | { |
625 | |
626 | } |
627 | |
628 | /*****************************************************************************/ |
629 | |
630 | dng_basic_tag_set * dng_mask_preview::AddTagSet (dng_tiff_directory &directory) const |
631 | { |
632 | |
633 | fIFD.fNewSubFileType = sfPreviewMask; |
634 | |
635 | fIFD.fImageWidth = fImage->Width (); |
636 | fIFD.fImageLength = fImage->Height (); |
637 | |
638 | fIFD.fSamplesPerPixel = 1; |
639 | |
640 | fIFD.fPhotometricInterpretation = piTransparencyMask; |
641 | |
642 | fIFD.fCompression = ccDeflate; |
643 | fIFD.fPredictor = cpHorizontalDifference; |
644 | |
645 | fIFD.fCompressionQuality = fCompressionQuality; |
646 | |
647 | fIFD.fBitsPerSample [0] = TagTypeSize (fImage->PixelType ()) * 8; |
648 | |
649 | fIFD.FindTileSize (512 * 512 * fIFD.fSamplesPerPixel); |
650 | |
651 | return new dng_basic_tag_set (directory, fIFD); |
652 | |
653 | } |
654 | |
655 | /*****************************************************************************/ |
656 | |
657 | void dng_mask_preview::WriteData (dng_host &host, |
658 | dng_image_writer &writer, |
659 | dng_basic_tag_set &basic, |
660 | dng_stream &stream) const |
661 | { |
662 | |
663 | writer.WriteImage (host, |
664 | fIFD, |
665 | basic, |
666 | stream, |
667 | *fImage.Get ()); |
668 | |
669 | } |
670 | |
671 | /*****************************************************************************/ |
672 | |
673 | dng_preview_list::dng_preview_list () |
674 | |
675 | : fCount (0) |
676 | |
677 | { |
678 | |
679 | } |
680 | |
681 | /*****************************************************************************/ |
682 | |
683 | dng_preview_list::~dng_preview_list () |
684 | { |
685 | |
686 | } |
687 | |
688 | /*****************************************************************************/ |
689 | |
690 | void dng_preview_list::Append (AutoPtr<dng_preview> &preview) |
691 | { |
692 | |
693 | if (preview.Get ()) |
694 | { |
695 | |
696 | DNG_ASSERT (fCount < kMaxDNGPreviews, "DNG preview list overflow" ); |
697 | |
698 | if (fCount < kMaxDNGPreviews) |
699 | { |
700 | |
701 | fPreview [fCount++] . Reset (preview.Release ()); |
702 | |
703 | } |
704 | |
705 | } |
706 | |
707 | } |
708 | |
709 | /*****************************************************************************/ |
710 | |