1 /*
2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 % %
4 % %
5 % %
6 % DDDD PPPP X X %
7 % D D P P X X %
8 % D D PPPP XXX %
9 % D D P X X %
10 % DDDD P X X %
11 % %
12 % %
13 % Read/Write SMTPE DPX Image Format %
14 % %
15 % Software Design %
16 % Cristy %
17 % March 2001 %
18 % %
19 % %
20 % Copyright 1999-2019 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
22 % %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
25 % %
26 % https://imagemagick.org/script/license.php %
27 % %
28 % Unless required by applicable law or agreed to in writing, software %
29 % distributed under the License is distributed on an "AS IS" BASIS, %
30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31 % See the License for the specific language governing permissions and %
32 % limitations under the License. %
33 % %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35 %
36 %
37 */
38
39 /*
40 Include declarations.
41 */
42 #include "MagickCore/studio.h"
43 #include "MagickCore/attribute.h"
44 #include "MagickCore/artifact.h"
45 #include "MagickCore/blob.h"
46 #include "MagickCore/blob-private.h"
47 #include "MagickCore/cache.h"
48 #include "MagickCore/colorspace.h"
49 #include "MagickCore/exception.h"
50 #include "MagickCore/exception-private.h"
51 #include "MagickCore/geometry.h"
52 #include "MagickCore/image.h"
53 #include "MagickCore/image-private.h"
54 #include "MagickCore/list.h"
55 #include "MagickCore/magick.h"
56 #include "MagickCore/memory_.h"
57 #include "MagickCore/module.h"
58 #include "MagickCore/monitor.h"
59 #include "MagickCore/monitor-private.h"
60 #include "MagickCore/option.h"
61 #include "MagickCore/pixel-accessor.h"
62 #include "MagickCore/profile.h"
63 #include "MagickCore/property.h"
64 #include "MagickCore/quantum-private.h"
65 #include "MagickCore/static.h"
66 #include "MagickCore/string_.h"
67 #include "MagickCore/string-private.h"
68
69 /*
70 Define declaration.
71 */
72 #define MaxNumberImageElements 8
73
74 /*
75 Typedef declaration.
76 */
77 typedef enum
78 {
79 UserDefinedColorimetric = 0,
80 PrintingDensityColorimetric = 1,
81 LinearColorimetric = 2,
82 LogarithmicColorimetric = 3,
83 UnspecifiedVideoColorimetric = 4,
84 SMTPE_274MColorimetric = 5,
85 ITU_R709Colorimetric = 6,
86 ITU_R601_625LColorimetric = 7,
87 ITU_R601_525LColorimetric = 8,
88 NTSCCompositeVideoColorimetric = 9,
89 PALCompositeVideoColorimetric = 10,
90 ZDepthLinearColorimetric = 11,
91 DepthHomogeneousColorimetric = 12
92 } DPXColorimetric;
93
94 typedef enum
95 {
96 UndefinedComponentType = 0,
97 RedComponentType = 1,
98 GreenComponentType = 2,
99 BlueComponentType = 3,
100 AlphaComponentType = 4,
101 LumaComponentType = 6,
102 ColorDifferenceCbCrComponentType = 7,
103 DepthComponentType = 8,
104 CompositeVideoComponentType = 9,
105 RGBComponentType = 50,
106 RGBAComponentType = 51,
107 ABGRComponentType = 52,
108 CbYCrY422ComponentType = 100,
109 CbYACrYA4224ComponentType = 101,
110 CbYCr444ComponentType = 102,
111 CbYCrA4444ComponentType = 103,
112 UserDef2ElementComponentType = 150,
113 UserDef3ElementComponentType = 151,
114 UserDef4ElementComponentType = 152,
115 UserDef5ElementComponentType = 153,
116 UserDef6ElementComponentType = 154,
117 UserDef7ElementComponentType = 155,
118 UserDef8ElementComponentType = 156
119 } DPXComponentType;
120
121 typedef enum
122 {
123 TransferCharacteristicUserDefined = 0,
124 TransferCharacteristicPrintingDensity = 1,
125 TransferCharacteristicLinear = 2,
126 TransferCharacteristicLogarithmic = 3,
127 TransferCharacteristicUnspecifiedVideo = 4,
128 TransferCharacteristicSMTPE274M = 5, /* 1920x1080 TV */
129 TransferCharacteristicITU_R709 = 6, /* ITU R709 */
130 TransferCharacteristicITU_R601_625L = 7, /* 625 Line */
131 TransferCharacteristicITU_R601_525L = 8, /* 525 Line */
132 TransferCharacteristicNTSCCompositeVideo = 9,
133 TransferCharacteristicPALCompositeVideo = 10,
134 TransferCharacteristicZDepthLinear = 11,
135 TransferCharacteristicZDepthHomogeneous = 12
136 } DPXTransferCharacteristic;
137
138 typedef struct _DPXFileInfo
139 {
140 unsigned int
141 magic,
142 image_offset;
143
144 char
145 version[8];
146
147 unsigned int
148 file_size,
149 ditto_key,
150 generic_size,
151 industry_size,
152 user_size;
153
154 char
155 filename[100],
156 timestamp[24],
157 creator[100],
158 project[200],
159 copyright[200];
160
161 unsigned int
162 encrypt_key;
163
164 char
165 reserve[104];
166 } DPXFileInfo;
167
168 typedef struct _DPXFilmInfo
169 {
170 char
171 id[2],
172 type[2],
173 offset[2],
174 prefix[6],
175 count[4],
176 format[32];
177
178 unsigned int
179 frame_position,
180 sequence_extent,
181 held_count;
182
183 float
184 frame_rate,
185 shutter_angle;
186
187 char
188 frame_id[32],
189 slate[100],
190 reserve[56];
191 } DPXFilmInfo;
192
193 typedef struct _DPXImageElement
194 {
195 unsigned int
196 data_sign,
197 low_data;
198
199 float
200 low_quantity;
201
202 unsigned int
203 high_data;
204
205 float
206 high_quantity;
207
208 unsigned char
209 descriptor,
210 transfer_characteristic,
211 colorimetric,
212 bit_size;
213
214 unsigned short
215 packing,
216 encoding;
217
218 unsigned int
219 data_offset,
220 end_of_line_padding,
221 end_of_image_padding;
222
223 unsigned char
224 description[32];
225 } DPXImageElement;
226
227 typedef struct _DPXImageInfo
228 {
229 unsigned short
230 orientation,
231 number_elements;
232
233 unsigned int
234 pixels_per_line,
235 lines_per_element;
236
237 DPXImageElement
238 image_element[MaxNumberImageElements];
239
240 unsigned char
241 reserve[52];
242 } DPXImageInfo;
243
244 typedef struct _DPXOrientationInfo
245 {
246 unsigned int
247 x_offset,
248 y_offset;
249
250 float
251 x_center,
252 y_center;
253
254 unsigned int
255 x_size,
256 y_size;
257
258 char
259 filename[100],
260 timestamp[24],
261 device[32],
262 serial[32];
263
264 unsigned short
265 border[4];
266
267 unsigned int
268 aspect_ratio[2];
269
270 unsigned char
271 reserve[28];
272 } DPXOrientationInfo;
273
274 typedef struct _DPXTelevisionInfo
275 {
276 unsigned int
277 time_code,
278 user_bits;
279
280 unsigned char
281 interlace,
282 field_number,
283 video_signal,
284 padding;
285
286 float
287 horizontal_sample_rate,
288 vertical_sample_rate,
289 frame_rate,
290 time_offset,
291 gamma,
292 black_level,
293 black_gain,
294 break_point,
295 white_level,
296 integration_times;
297
298 char
299 reserve[76];
300 } DPXTelevisionInfo;
301
302 typedef struct _DPXUserInfo
303 {
304 char
305 id[32];
306 } DPXUserInfo;
307
308 typedef struct DPXInfo
309 {
310 DPXFileInfo
311 file;
312
313 DPXImageInfo
314 image;
315
316 DPXOrientationInfo
317 orientation;
318
319 DPXFilmInfo
320 film;
321
322 DPXTelevisionInfo
323 television;
324
325 DPXUserInfo
326 user;
327 } DPXInfo;
328
329 /*
330 Forward declaractions.
331 */
332 static MagickBooleanType
333 WriteDPXImage(const ImageInfo *,Image *,ExceptionInfo *);
334
335 /*
336 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
337 % %
338 % %
339 % %
340 % I s D P X %
341 % %
342 % %
343 % %
344 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
345 %
346 % IsDPX() returns MagickTrue if the image format type, identified by the
347 % magick string, is DPX.
348 %
349 % The format of the IsDPX method is:
350 %
351 % MagickBooleanType IsDPX(const unsigned char *magick,const size_t extent)
352 %
353 % A description of each parameter follows:
354 %
355 % o magick: compare image format pattern against these bytes.
356 %
357 % o extent: Specifies the extent of the magick string.
358 %
359 */
IsDPX(const unsigned char * magick,const size_t extent)360 static MagickBooleanType IsDPX(const unsigned char *magick,const size_t extent)
361 {
362 if (extent < 4)
363 return(MagickFalse);
364 if (memcmp(magick,"SDPX",4) == 0)
365 return(MagickTrue);
366 if (memcmp(magick,"XPDS",4) == 0)
367 return(MagickTrue);
368 return(MagickFalse);
369 }
370
371 /*
372 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
373 % %
374 % %
375 % %
376 % R e a d D P X I m a g e %
377 % %
378 % %
379 % %
380 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
381 %
382 % ReadDPXImage() reads an DPX X image file and returns it. It
383 % allocates the memory necessary for the new Image structure and returns a
384 % pointer to the new image.
385 %
386 % The format of the ReadDPXImage method is:
387 %
388 % Image *ReadDPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
389 %
390 % A description of each parameter follows:
391 %
392 % o image_info: the image info.
393 %
394 % o exception: return any errors or warnings in this structure.
395 %
396 */
397
GetBytesPerRow(const size_t columns,const size_t samples_per_pixel,const size_t bits_per_pixel,const MagickBooleanType pad)398 static size_t GetBytesPerRow(const size_t columns,
399 const size_t samples_per_pixel,const size_t bits_per_pixel,
400 const MagickBooleanType pad)
401 {
402 size_t
403 bytes_per_row;
404
405 switch (bits_per_pixel)
406 {
407 case 1:
408 {
409 bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
410 32);
411 break;
412 }
413 case 8:
414 default:
415 {
416 bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
417 32);
418 break;
419 }
420 case 10:
421 {
422 if (pad == MagickFalse)
423 {
424 bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+
425 31)/32);
426 break;
427 }
428 bytes_per_row=4*(((size_t) (32*((samples_per_pixel*columns+2)/3))+31)/32);
429 break;
430 }
431 case 12:
432 {
433 if (pad == MagickFalse)
434 {
435 bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+
436 31)/32);
437 break;
438 }
439 bytes_per_row=2*(((size_t) (16*samples_per_pixel*columns)+15)/16);
440 break;
441 }
442 case 16:
443 {
444 if (pad == MagickFalse)
445 {
446 bytes_per_row=2*(((size_t) samples_per_pixel*columns*bits_per_pixel+
447 15)/16);
448 break;
449 }
450 bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
451 32);
452 break;
453 }
454 case 32:
455 {
456 bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
457 32);
458 break;
459 }
460 case 64:
461 {
462 bytes_per_row=8*(((size_t) samples_per_pixel*columns*bits_per_pixel+63)/
463 64);
464 break;
465 }
466 }
467 return(bytes_per_row);
468 }
469
GetImageTransferCharacteristic(const DPXTransferCharacteristic characteristic)470 static const char *GetImageTransferCharacteristic(
471 const DPXTransferCharacteristic characteristic)
472 {
473 const char
474 *transfer;
475
476 /*
477 Get the element transfer characteristic.
478 */
479 switch(characteristic)
480 {
481 case TransferCharacteristicUserDefined:
482 {
483 transfer="UserDefined";
484 break;
485 }
486 case TransferCharacteristicPrintingDensity:
487 {
488 transfer="PrintingDensity";
489 break;
490 }
491 case TransferCharacteristicLinear:
492 {
493 transfer="Linear";
494 break;
495 }
496 case TransferCharacteristicLogarithmic:
497 {
498 transfer="Logarithmic";
499 break;
500 }
501 case TransferCharacteristicUnspecifiedVideo:
502 {
503 transfer="UnspecifiedVideo";
504 break;
505 }
506 case TransferCharacteristicSMTPE274M:
507 {
508 transfer="SMTPE274M";
509 break;
510 }
511 case TransferCharacteristicITU_R709:
512 {
513 transfer="ITU-R709";
514 break;
515 }
516 case TransferCharacteristicITU_R601_625L:
517 {
518 transfer="ITU-R601-625L";
519 break;
520 }
521 case TransferCharacteristicITU_R601_525L:
522 {
523 transfer="ITU-R601-525L";
524 break;
525 }
526 case TransferCharacteristicNTSCCompositeVideo:
527 {
528 transfer="NTSCCompositeVideo";
529 break;
530 }
531 case TransferCharacteristicPALCompositeVideo:
532 {
533 transfer="PALCompositeVideo";
534 break;
535 }
536 case TransferCharacteristicZDepthLinear:
537 {
538 transfer="ZDepthLinear";
539 break;
540 }
541 case TransferCharacteristicZDepthHomogeneous:
542 {
543 transfer="ZDepthHomogeneous";
544 break;
545 }
546 default:
547 transfer="Reserved";
548 }
549 return(transfer);
550 }
551
IsFloatDefined(const float value)552 static inline MagickBooleanType IsFloatDefined(const float value)
553 {
554 union
555 {
556 unsigned int
557 unsigned_value;
558
559 float
560 float_value;
561 } quantum;
562
563 quantum.unsigned_value=0U;
564 quantum.float_value=(float) value;
565 if (quantum.unsigned_value == 0U)
566 return(MagickFalse);
567 return(MagickTrue);
568 }
569
SetPrimaryChromaticity(const DPXColorimetric colorimetric,ChromaticityInfo * chromaticity_info)570 static void SetPrimaryChromaticity(const DPXColorimetric colorimetric,
571 ChromaticityInfo *chromaticity_info)
572 {
573 switch(colorimetric)
574 {
575 case SMTPE_274MColorimetric:
576 case ITU_R709Colorimetric:
577 {
578 chromaticity_info->red_primary.x=0.640;
579 chromaticity_info->red_primary.y=0.330;
580 chromaticity_info->red_primary.z=0.030;
581 chromaticity_info->green_primary.x=0.300;
582 chromaticity_info->green_primary.y=0.600;
583 chromaticity_info->green_primary.z=0.100;
584 chromaticity_info->blue_primary.x=0.150;
585 chromaticity_info->blue_primary.y=0.060;
586 chromaticity_info->blue_primary.z=0.790;
587 chromaticity_info->white_point.x=0.3127;
588 chromaticity_info->white_point.y=0.3290;
589 chromaticity_info->white_point.z=0.3582;
590 break;
591 }
592 case NTSCCompositeVideoColorimetric:
593 {
594 chromaticity_info->red_primary.x=0.67;
595 chromaticity_info->red_primary.y=0.33;
596 chromaticity_info->red_primary.z=0.00;
597 chromaticity_info->green_primary.x=0.21;
598 chromaticity_info->green_primary.y=0.71;
599 chromaticity_info->green_primary.z=0.08;
600 chromaticity_info->blue_primary.x=0.14;
601 chromaticity_info->blue_primary.y=0.08;
602 chromaticity_info->blue_primary.z=0.78;
603 chromaticity_info->white_point.x=0.310;
604 chromaticity_info->white_point.y=0.316;
605 chromaticity_info->white_point.z=0.374;
606 break;
607 }
608 case PALCompositeVideoColorimetric:
609 {
610 chromaticity_info->red_primary.x=0.640;
611 chromaticity_info->red_primary.y=0.330;
612 chromaticity_info->red_primary.z=0.030;
613 chromaticity_info->green_primary.x=0.290;
614 chromaticity_info->green_primary.y=0.600;
615 chromaticity_info->green_primary.z=0.110;
616 chromaticity_info->blue_primary.x=0.150;
617 chromaticity_info->blue_primary.y=0.060;
618 chromaticity_info->blue_primary.z=0.790;
619 chromaticity_info->white_point.x=0.3127;
620 chromaticity_info->white_point.y=0.3290;
621 chromaticity_info->white_point.z=0.3582;
622 break;
623 }
624 default:
625 break;
626 }
627 }
628
TimeCodeToString(const size_t timestamp,char * code)629 static void TimeCodeToString(const size_t timestamp,char *code)
630 {
631 #define TimeFields 7
632
633 unsigned int
634 shift;
635
636 register ssize_t
637 i;
638
639 *code='\0';
640 shift=4*TimeFields;
641 for (i=0; i <= TimeFields; i++)
642 {
643 (void) FormatLocaleString(code,MagickPathExtent-strlen(code),"%x",
644 (unsigned int) ((timestamp >> shift) & 0x0fU));
645 code++;
646 if (((i % 2) != 0) && (i < TimeFields))
647 *code++=':';
648 shift-=4;
649 *code='\0';
650 }
651 }
652
ReadDPXImage(const ImageInfo * image_info,ExceptionInfo * exception)653 static Image *ReadDPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
654 {
655 char
656 magick[4],
657 value[MagickPathExtent];
658
659 DPXInfo
660 dpx;
661
662 Image
663 *image;
664
665 MagickBooleanType
666 status;
667
668 MagickOffsetType
669 offset;
670
671 QuantumInfo
672 *quantum_info;
673
674 QuantumType
675 quantum_type;
676
677 register ssize_t
678 i;
679
680 size_t
681 extent,
682 samples_per_pixel;
683
684 ssize_t
685 count,
686 n,
687 row,
688 y;
689
690 unsigned char
691 component_type;
692
693 /*
694 Open image file.
695 */
696 assert(image_info != (const ImageInfo *) NULL);
697 assert(image_info->signature == MagickCoreSignature);
698 if (image_info->debug != MagickFalse)
699 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
700 image_info->filename);
701 assert(exception != (ExceptionInfo *) NULL);
702 assert(exception->signature == MagickCoreSignature);
703 image=AcquireImage(image_info,exception);
704 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
705 if (status == MagickFalse)
706 {
707 image=DestroyImageList(image);
708 return((Image *) NULL);
709 }
710 /*
711 Read DPX file header.
712 */
713 offset=0;
714 count=ReadBlob(image,4,(unsigned char *) magick);
715 offset+=count;
716 if ((count != 4) || ((LocaleNCompare(magick,"SDPX",4) != 0) &&
717 (LocaleNCompare((char *) magick,"XPDS",4) != 0)))
718 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
719 image->endian=LSBEndian;
720 if (LocaleNCompare(magick,"SDPX",4) == 0)
721 image->endian=MSBEndian;
722 (void) memset(&dpx,0,sizeof(dpx));
723 dpx.file.image_offset=ReadBlobLong(image);
724 offset+=4;
725 offset+=ReadBlob(image,sizeof(dpx.file.version),(unsigned char *)
726 dpx.file.version);
727 (void) FormatImageProperty(image,"dpx:file.version","%.8s",dpx.file.version);
728 dpx.file.file_size=ReadBlobLong(image);
729 if (0 && dpx.file.file_size > GetBlobSize(image))
730 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
731 offset+=4;
732 dpx.file.ditto_key=ReadBlobLong(image);
733 offset+=4;
734 if (dpx.file.ditto_key != ~0U)
735 (void) FormatImageProperty(image,"dpx:file.ditto.key","%u",
736 dpx.file.ditto_key);
737 dpx.file.generic_size=ReadBlobLong(image);
738 if (0 && dpx.file.generic_size > GetBlobSize(image))
739 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
740 offset+=4;
741 dpx.file.industry_size=ReadBlobLong(image);
742 if (dpx.file.industry_size > GetBlobSize(image))
743 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
744 offset+=4;
745 dpx.file.user_size=ReadBlobLong(image);
746 if (0 && dpx.file.user_size > GetBlobSize(image))
747 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
748 offset+=4;
749 offset+=ReadBlob(image,sizeof(dpx.file.filename),(unsigned char *)
750 dpx.file.filename);
751 (void) FormatImageProperty(image,"dpx:file.filename","%.100s",
752 dpx.file.filename);
753 (void) FormatImageProperty(image,"document","%.100s",dpx.file.filename);
754 offset+=ReadBlob(image,sizeof(dpx.file.timestamp),(unsigned char *)
755 dpx.file.timestamp);
756 if (*dpx.file.timestamp != '\0')
757 (void) FormatImageProperty(image,"dpx:file.timestamp","%.24s",
758 dpx.file.timestamp);
759 offset+=ReadBlob(image,sizeof(dpx.file.creator),(unsigned char *)
760 dpx.file.creator);
761 if (*dpx.file.creator != '\0')
762 {
763 (void) FormatImageProperty(image,"dpx:file.creator","%.100s",
764 dpx.file.creator);
765 (void) FormatImageProperty(image,"software","%.100s",dpx.file.creator);
766 }
767 offset+=ReadBlob(image,sizeof(dpx.file.project),(unsigned char *)
768 dpx.file.project);
769 if (*dpx.file.project != '\0')
770 {
771 (void) FormatImageProperty(image,"dpx:file.project","%.200s",
772 dpx.file.project);
773 (void) FormatImageProperty(image,"comment","%.100s",dpx.file.project);
774 }
775 offset+=ReadBlob(image,sizeof(dpx.file.copyright),(unsigned char *)
776 dpx.file.copyright);
777 if (*dpx.file.copyright != '\0')
778 {
779 (void) FormatImageProperty(image,"dpx:file.copyright","%.200s",
780 dpx.file.copyright);
781 (void) FormatImageProperty(image,"copyright","%.100s",
782 dpx.file.copyright);
783 }
784 dpx.file.encrypt_key=ReadBlobLong(image);
785 offset+=4;
786 if (dpx.file.encrypt_key != ~0U)
787 (void) FormatImageProperty(image,"dpx:file.encrypt_key","%u",
788 dpx.file.encrypt_key);
789 offset+=ReadBlob(image,sizeof(dpx.file.reserve),(unsigned char *)
790 dpx.file.reserve);
791 /*
792 Read DPX image header.
793 */
794 dpx.image.orientation=ReadBlobShort(image);
795 if (dpx.image.orientation > 7)
796 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
797 offset+=2;
798 if (dpx.image.orientation != (unsigned short) ~0)
799 (void) FormatImageProperty(image,"dpx:image.orientation","%d",
800 dpx.image.orientation);
801 switch (dpx.image.orientation)
802 {
803 default:
804 case 0: image->orientation=TopLeftOrientation; break;
805 case 1: image->orientation=TopRightOrientation; break;
806 case 2: image->orientation=BottomLeftOrientation; break;
807 case 3: image->orientation=BottomRightOrientation; break;
808 case 4: image->orientation=LeftTopOrientation; break;
809 case 5: image->orientation=RightTopOrientation; break;
810 case 6: image->orientation=LeftBottomOrientation; break;
811 case 7: image->orientation=RightBottomOrientation; break;
812 }
813 dpx.image.number_elements=ReadBlobShort(image);
814 if ((dpx.image.number_elements < 1) ||
815 (dpx.image.number_elements > MaxNumberImageElements))
816 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
817 offset+=2;
818 dpx.image.pixels_per_line=ReadBlobLong(image);
819 offset+=4;
820 image->columns=dpx.image.pixels_per_line;
821 dpx.image.lines_per_element=ReadBlobLong(image);
822 offset+=4;
823 image->rows=dpx.image.lines_per_element;
824 for (i=0; i < 8; i++)
825 {
826 char
827 property[MagickPathExtent];
828
829 dpx.image.image_element[i].data_sign=ReadBlobLong(image);
830 offset+=4;
831 dpx.image.image_element[i].low_data=ReadBlobLong(image);
832 offset+=4;
833 dpx.image.image_element[i].low_quantity=ReadBlobFloat(image);
834 offset+=4;
835 dpx.image.image_element[i].high_data=ReadBlobLong(image);
836 offset+=4;
837 dpx.image.image_element[i].high_quantity=ReadBlobFloat(image);
838 offset+=4;
839 dpx.image.image_element[i].descriptor=(unsigned char) ReadBlobByte(image);
840 offset++;
841 dpx.image.image_element[i].transfer_characteristic=(unsigned char)
842 ReadBlobByte(image);
843 (void) FormatLocaleString(property,MagickPathExtent,
844 "dpx:image.element[%lu].transfer-characteristic",(long) i);
845 (void) FormatImageProperty(image,property,"%s",
846 GetImageTransferCharacteristic((DPXTransferCharacteristic)
847 dpx.image.image_element[i].transfer_characteristic));
848 offset++;
849 dpx.image.image_element[i].colorimetric=(unsigned char) ReadBlobByte(image);
850 offset++;
851 dpx.image.image_element[i].bit_size=(unsigned char) ReadBlobByte(image);
852 offset++;
853 dpx.image.image_element[i].packing=ReadBlobShort(image);
854 if (dpx.image.image_element[i].packing > 2)
855 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
856 offset+=2;
857 dpx.image.image_element[i].encoding=ReadBlobShort(image);
858 offset+=2;
859 dpx.image.image_element[i].data_offset=ReadBlobLong(image);
860 offset+=4;
861 dpx.image.image_element[i].end_of_line_padding=ReadBlobLong(image);
862 offset+=4;
863 dpx.image.image_element[i].end_of_image_padding=ReadBlobLong(image);
864 offset+=4;
865 offset+=ReadBlob(image,sizeof(dpx.image.image_element[i].description),
866 (unsigned char *) dpx.image.image_element[i].description);
867 }
868 SetImageColorspace(image,RGBColorspace,exception);
869 offset+=ReadBlob(image,sizeof(dpx.image.reserve),(unsigned char *)
870 dpx.image.reserve);
871 if (dpx.file.image_offset >= 1664U)
872 {
873 /*
874 Read DPX orientation header.
875 */
876 dpx.orientation.x_offset=ReadBlobLong(image);
877 offset+=4;
878 if (dpx.orientation.x_offset != ~0U)
879 (void) FormatImageProperty(image,"dpx:orientation.x_offset","%u",
880 dpx.orientation.x_offset);
881 dpx.orientation.y_offset=ReadBlobLong(image);
882 offset+=4;
883 if (dpx.orientation.y_offset != ~0U)
884 (void) FormatImageProperty(image,"dpx:orientation.y_offset","%u",
885 dpx.orientation.y_offset);
886 dpx.orientation.x_center=ReadBlobFloat(image);
887 offset+=4;
888 if (IsFloatDefined(dpx.orientation.x_center) != MagickFalse)
889 (void) FormatImageProperty(image,"dpx:orientation.x_center","%g",
890 dpx.orientation.x_center);
891 dpx.orientation.y_center=ReadBlobFloat(image);
892 offset+=4;
893 if (IsFloatDefined(dpx.orientation.y_center) != MagickFalse)
894 (void) FormatImageProperty(image,"dpx:orientation.y_center","%g",
895 dpx.orientation.y_center);
896 dpx.orientation.x_size=ReadBlobLong(image);
897 offset+=4;
898 if (dpx.orientation.x_size != ~0U)
899 (void) FormatImageProperty(image,"dpx:orientation.x_size","%u",
900 dpx.orientation.x_size);
901 dpx.orientation.y_size=ReadBlobLong(image);
902 offset+=4;
903 if (dpx.orientation.y_size != ~0U)
904 (void) FormatImageProperty(image,"dpx:orientation.y_size","%u",
905 dpx.orientation.y_size);
906 offset+=ReadBlob(image,sizeof(dpx.orientation.filename),(unsigned char *)
907 dpx.orientation.filename);
908 if (*dpx.orientation.filename != '\0')
909 (void) FormatImageProperty(image,"dpx:orientation.filename","%.100s",
910 dpx.orientation.filename);
911 offset+=ReadBlob(image,sizeof(dpx.orientation.timestamp),(unsigned char *)
912 dpx.orientation.timestamp);
913 if (*dpx.orientation.timestamp != '\0')
914 (void) FormatImageProperty(image,"dpx:orientation.timestamp","%.24s",
915 dpx.orientation.timestamp);
916 offset+=ReadBlob(image,sizeof(dpx.orientation.device),(unsigned char *)
917 dpx.orientation.device);
918 if (*dpx.orientation.device != '\0')
919 (void) FormatImageProperty(image,"dpx:orientation.device","%.32s",
920 dpx.orientation.device);
921 offset+=ReadBlob(image,sizeof(dpx.orientation.serial),(unsigned char *)
922 dpx.orientation.serial);
923 if (*dpx.orientation.serial != '\0')
924 (void) FormatImageProperty(image,"dpx:orientation.serial","%.32s",
925 dpx.orientation.serial);
926 for (i=0; i < 4; i++)
927 {
928 dpx.orientation.border[i]=ReadBlobShort(image);
929 offset+=2;
930 }
931 if ((dpx.orientation.border[0] != (unsigned short) (~0)) &&
932 (dpx.orientation.border[1] != (unsigned short) (~0)))
933 (void) FormatImageProperty(image,"dpx:orientation.border","%dx%d%+d%+d",
934 dpx.orientation.border[0],dpx.orientation.border[1],
935 dpx.orientation.border[2],dpx.orientation.border[3]);
936 for (i=0; i < 2; i++)
937 {
938 dpx.orientation.aspect_ratio[i]=ReadBlobLong(image);
939 offset+=4;
940 }
941 if ((dpx.orientation.aspect_ratio[0] != ~0U) &&
942 (dpx.orientation.aspect_ratio[1] != ~0U))
943 (void) FormatImageProperty(image,"dpx:orientation.aspect_ratio",
944 "%ux%u",dpx.orientation.aspect_ratio[0],
945 dpx.orientation.aspect_ratio[1]);
946 offset+=ReadBlob(image,sizeof(dpx.orientation.reserve),(unsigned char *)
947 dpx.orientation.reserve);
948 }
949 if (dpx.file.image_offset >= 1920U)
950 {
951 /*
952 Read DPX film header.
953 */
954 offset+=ReadBlob(image,sizeof(dpx.film.id),(unsigned char *) dpx.film.id);
955 if (*dpx.film.id != '\0')
956 (void) FormatImageProperty(image,"dpx:film.id","%.2s",dpx.film.id);
957 offset+=ReadBlob(image,sizeof(dpx.film.type),(unsigned char *)
958 dpx.film.type);
959 if (*dpx.film.type != '\0')
960 (void) FormatImageProperty(image,"dpx:film.type","%.2s",dpx.film.type);
961 offset+=ReadBlob(image,sizeof(dpx.film.offset),(unsigned char *)
962 dpx.film.offset);
963 if (*dpx.film.offset != '\0')
964 (void) FormatImageProperty(image,"dpx:film.offset","%.2s",
965 dpx.film.offset);
966 offset+=ReadBlob(image,sizeof(dpx.film.prefix),(unsigned char *)
967 dpx.film.prefix);
968 if (*dpx.film.prefix != '\0')
969 (void) FormatImageProperty(image,"dpx:film.prefix","%.6s",
970 dpx.film.prefix);
971 offset+=ReadBlob(image,sizeof(dpx.film.count),(unsigned char *)
972 dpx.film.count);
973 if (*dpx.film.count != '\0')
974 (void) FormatImageProperty(image,"dpx:film.count","%.4s",
975 dpx.film.count);
976 offset+=ReadBlob(image,sizeof(dpx.film.format),(unsigned char *)
977 dpx.film.format);
978 if (*dpx.film.format != '\0')
979 (void) FormatImageProperty(image,"dpx:film.format","%.4s",
980 dpx.film.format);
981 dpx.film.frame_position=ReadBlobLong(image);
982 offset+=4;
983 if (dpx.film.frame_position != ~0U)
984 (void) FormatImageProperty(image,"dpx:film.frame_position","%u",
985 dpx.film.frame_position);
986 dpx.film.sequence_extent=ReadBlobLong(image);
987 offset+=4;
988 if (dpx.film.sequence_extent != ~0U)
989 (void) FormatImageProperty(image,"dpx:film.sequence_extent","%u",
990 dpx.film.sequence_extent);
991 dpx.film.held_count=ReadBlobLong(image);
992 offset+=4;
993 if (dpx.film.held_count != ~0U)
994 (void) FormatImageProperty(image,"dpx:film.held_count","%u",
995 dpx.film.held_count);
996 dpx.film.frame_rate=ReadBlobFloat(image);
997 offset+=4;
998 if (IsFloatDefined(dpx.film.frame_rate) != MagickFalse)
999 (void) FormatImageProperty(image,"dpx:film.frame_rate","%g",
1000 dpx.film.frame_rate);
1001 dpx.film.shutter_angle=ReadBlobFloat(image);
1002 offset+=4;
1003 if (IsFloatDefined(dpx.film.shutter_angle) != MagickFalse)
1004 (void) FormatImageProperty(image,"dpx:film.shutter_angle","%g",
1005 dpx.film.shutter_angle);
1006 offset+=ReadBlob(image,sizeof(dpx.film.frame_id),(unsigned char *)
1007 dpx.film.frame_id);
1008 if (*dpx.film.frame_id != '\0')
1009 (void) FormatImageProperty(image,"dpx:film.frame_id","%.32s",
1010 dpx.film.frame_id);
1011 offset+=ReadBlob(image,sizeof(dpx.film.slate),(unsigned char *)
1012 dpx.film.slate);
1013 if (*dpx.film.slate != '\0')
1014 (void) FormatImageProperty(image,"dpx:film.slate","%.100s",
1015 dpx.film.slate);
1016 offset+=ReadBlob(image,sizeof(dpx.film.reserve),(unsigned char *)
1017 dpx.film.reserve);
1018 }
1019 if (dpx.file.image_offset >= 2048U)
1020 {
1021 /*
1022 Read DPX television header.
1023 */
1024 dpx.television.time_code=(unsigned int) ReadBlobLong(image);
1025 offset+=4;
1026 TimeCodeToString(dpx.television.time_code,value);
1027 (void) SetImageProperty(image,"dpx:television.time.code",value,exception);
1028 dpx.television.user_bits=(unsigned int) ReadBlobLong(image);
1029 offset+=4;
1030 TimeCodeToString(dpx.television.user_bits,value);
1031 (void) SetImageProperty(image,"dpx:television.user.bits",value,exception);
1032 dpx.television.interlace=(unsigned char) ReadBlobByte(image);
1033 offset++;
1034 if (dpx.television.interlace != 0)
1035 (void) FormatImageProperty(image,"dpx:television.interlace","%.20g",
1036 (double) dpx.television.interlace);
1037 dpx.television.field_number=(unsigned char) ReadBlobByte(image);
1038 offset++;
1039 if (dpx.television.field_number != 0)
1040 (void) FormatImageProperty(image,"dpx:television.field_number","%.20g",
1041 (double) dpx.television.field_number);
1042 dpx.television.video_signal=(unsigned char) ReadBlobByte(image);
1043 offset++;
1044 if (dpx.television.video_signal != 0)
1045 (void) FormatImageProperty(image,"dpx:television.video_signal","%.20g",
1046 (double) dpx.television.video_signal);
1047 dpx.television.padding=(unsigned char) ReadBlobByte(image);
1048 offset++;
1049 if (dpx.television.padding != 0)
1050 (void) FormatImageProperty(image,"dpx:television.padding","%d",
1051 dpx.television.padding);
1052 dpx.television.horizontal_sample_rate=ReadBlobFloat(image);
1053 offset+=4;
1054 if (IsFloatDefined(dpx.television.horizontal_sample_rate) != MagickFalse)
1055 (void) FormatImageProperty(image,
1056 "dpx:television.horizontal_sample_rate","%g",
1057 dpx.television.horizontal_sample_rate);
1058 dpx.television.vertical_sample_rate=ReadBlobFloat(image);
1059 offset+=4;
1060 if (IsFloatDefined(dpx.television.vertical_sample_rate) != MagickFalse)
1061 (void) FormatImageProperty(image,"dpx:television.vertical_sample_rate",
1062 "%g",dpx.television.vertical_sample_rate);
1063 dpx.television.frame_rate=ReadBlobFloat(image);
1064 offset+=4;
1065 if (IsFloatDefined(dpx.television.frame_rate) != MagickFalse)
1066 (void) FormatImageProperty(image,"dpx:television.frame_rate","%g",
1067 dpx.television.frame_rate);
1068 dpx.television.time_offset=ReadBlobFloat(image);
1069 offset+=4;
1070 if (IsFloatDefined(dpx.television.time_offset) != MagickFalse)
1071 (void) FormatImageProperty(image,"dpx:television.time_offset","%g",
1072 dpx.television.time_offset);
1073 dpx.television.gamma=ReadBlobFloat(image);
1074 offset+=4;
1075 if (IsFloatDefined(dpx.television.gamma) != MagickFalse)
1076 (void) FormatImageProperty(image,"dpx:television.gamma","%g",
1077 dpx.television.gamma);
1078 dpx.television.black_level=ReadBlobFloat(image);
1079 offset+=4;
1080 if (IsFloatDefined(dpx.television.black_level) != MagickFalse)
1081 (void) FormatImageProperty(image,"dpx:television.black_level","%g",
1082 dpx.television.black_level);
1083 dpx.television.black_gain=ReadBlobFloat(image);
1084 offset+=4;
1085 if (IsFloatDefined(dpx.television.black_gain) != MagickFalse)
1086 (void) FormatImageProperty(image,"dpx:television.black_gain","%g",
1087 dpx.television.black_gain);
1088 dpx.television.break_point=ReadBlobFloat(image);
1089 offset+=4;
1090 if (IsFloatDefined(dpx.television.break_point) != MagickFalse)
1091 (void) FormatImageProperty(image,"dpx:television.break_point","%g",
1092 dpx.television.break_point);
1093 dpx.television.white_level=ReadBlobFloat(image);
1094 offset+=4;
1095 if (IsFloatDefined(dpx.television.white_level) != MagickFalse)
1096 (void) FormatImageProperty(image,"dpx:television.white_level","%g",
1097 dpx.television.white_level);
1098 dpx.television.integration_times=ReadBlobFloat(image);
1099 offset+=4;
1100 if (IsFloatDefined(dpx.television.integration_times) != MagickFalse)
1101 (void) FormatImageProperty(image,"dpx:television.integration_times",
1102 "%g",dpx.television.integration_times);
1103 offset+=ReadBlob(image,sizeof(dpx.television.reserve),(unsigned char *)
1104 dpx.television.reserve);
1105 }
1106 if (dpx.file.image_offset > 2080U)
1107 {
1108 /*
1109 Read DPX user header.
1110 */
1111 offset+=ReadBlob(image,sizeof(dpx.user.id),(unsigned char *) dpx.user.id);
1112 if (*dpx.user.id != '\0')
1113 (void) FormatImageProperty(image,"dpx:user.id","%.32s",dpx.user.id);
1114 if ((dpx.file.user_size != ~0U) &&
1115 ((size_t) dpx.file.user_size > sizeof(dpx.user.id)))
1116 {
1117 StringInfo
1118 *profile;
1119
1120 if (dpx.file.user_size > GetBlobSize(image))
1121 ThrowReaderException(CorruptImageError,
1122 "InsufficientImageDataInFile");
1123 profile=BlobToStringInfo((const unsigned char *) NULL,
1124 dpx.file.user_size-sizeof(dpx.user.id));
1125 if (profile == (StringInfo *) NULL)
1126 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
1127 offset+=ReadBlob(image,GetStringInfoLength(profile),
1128 GetStringInfoDatum(profile));
1129 if (EOFBlob(image) != MagickFalse)
1130 (void) SetImageProfile(image,"dpx:user-data",profile,exception);
1131 profile=DestroyStringInfo(profile);
1132 }
1133 }
1134 for ( ; offset < (MagickOffsetType) dpx.file.image_offset; offset++)
1135 if (ReadBlobByte(image) == EOF)
1136 break;
1137 if (EOFBlob(image) != MagickFalse)
1138 ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
1139 image->filename);
1140 if (image_info->ping != MagickFalse)
1141 {
1142 (void) CloseBlob(image);
1143 return(GetFirstImageInList(image));
1144 }
1145 status=SetImageExtent(image,image->columns,image->rows,exception);
1146 if (status == MagickFalse)
1147 return(DestroyImageList(image));
1148 status=ResetImagePixels(image,exception);
1149 if (status == MagickFalse)
1150 return(DestroyImageList(image));
1151 for (n=0; n < (ssize_t) dpx.image.number_elements; n++)
1152 {
1153 /*
1154 Convert DPX raster image to pixel packets.
1155 */
1156 if ((dpx.image.image_element[n].data_offset != ~0U) &&
1157 (dpx.image.image_element[n].data_offset != 0U))
1158 {
1159 MagickOffsetType
1160 data_offset;
1161
1162 data_offset=(MagickOffsetType) dpx.image.image_element[n].data_offset;
1163 if (data_offset < offset)
1164 offset=SeekBlob(image,data_offset,SEEK_SET);
1165 else
1166 for ( ; offset < data_offset; offset++)
1167 if (ReadBlobByte(image) == EOF)
1168 break;
1169 if (offset != data_offset)
1170 ThrowReaderException(CorruptImageError,"UnableToReadImageData");
1171 }
1172 SetPrimaryChromaticity((DPXColorimetric)
1173 dpx.image.image_element[n].colorimetric,&image->chromaticity);
1174 image->depth=dpx.image.image_element[n].bit_size;
1175 if ((image->depth == 0) || (image->depth > 32))
1176 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1177 samples_per_pixel=1;
1178 quantum_type=GrayQuantum;
1179 component_type=dpx.image.image_element[n].descriptor;
1180 switch (component_type)
1181 {
1182 case CbYCrY422ComponentType:
1183 {
1184 samples_per_pixel=2;
1185 quantum_type=CbYCrYQuantum;
1186 break;
1187 }
1188 case CbYACrYA4224ComponentType:
1189 case CbYCr444ComponentType:
1190 {
1191 samples_per_pixel=3;
1192 quantum_type=CbYCrQuantum;
1193 break;
1194 }
1195 case RGBComponentType:
1196 {
1197 samples_per_pixel=3;
1198 quantum_type=RGBQuantum;
1199 break;
1200 }
1201 case ABGRComponentType:
1202 case RGBAComponentType:
1203 {
1204 image->alpha_trait=BlendPixelTrait;
1205 samples_per_pixel=4;
1206 quantum_type=RGBAQuantum;
1207 break;
1208 }
1209 default:
1210 break;
1211 }
1212 switch (component_type)
1213 {
1214 case CbYCrY422ComponentType:
1215 case CbYACrYA4224ComponentType:
1216 case CbYCr444ComponentType:
1217 {
1218 SetImageColorspace(image,Rec709YCbCrColorspace,exception);
1219 break;
1220 }
1221 case LumaComponentType:
1222 {
1223 SetImageColorspace(image,GRAYColorspace,exception);
1224 break;
1225 }
1226 default:
1227 {
1228 SetImageColorspace(image,sRGBColorspace,exception);
1229 if (dpx.image.image_element[n].transfer_characteristic == LogarithmicColorimetric)
1230 SetImageColorspace(image,LogColorspace,exception);
1231 if (dpx.image.image_element[n].transfer_characteristic == PrintingDensityColorimetric)
1232 SetImageColorspace(image,LogColorspace,exception);
1233 break;
1234 }
1235 }
1236 extent=GetBytesPerRow(image->columns,samples_per_pixel,image->depth,
1237 dpx.image.image_element[n].packing == 0 ? MagickFalse : MagickTrue);
1238 /*
1239 DPX any-bit pixel format.
1240 */
1241 row=0;
1242 quantum_info=AcquireQuantumInfo(image_info,image);
1243 if (quantum_info == (QuantumInfo *) NULL)
1244 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
1245 SetQuantumQuantum(quantum_info,32);
1246 SetQuantumPack(quantum_info,dpx.image.image_element[n].packing == 0 ?
1247 MagickTrue : MagickFalse);
1248 for (y=0; y < (ssize_t) image->rows; y++)
1249 {
1250 const unsigned char
1251 *pixels;
1252
1253 MagickBooleanType
1254 sync;
1255
1256 register Quantum
1257 *q;
1258
1259 size_t
1260 length;
1261
1262 ssize_t
1263 offset;
1264
1265 pixels=(const unsigned char *) ReadBlobStream(image,extent,
1266 GetQuantumPixels(quantum_info),&count);
1267 if (count != (ssize_t) extent)
1268 break;
1269 if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
1270 (image->previous == (Image *) NULL))
1271 {
1272 MagickBooleanType
1273 proceed;
1274
1275 proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) row,
1276 image->rows);
1277 if (proceed == MagickFalse)
1278 break;
1279 }
1280 offset=row++;
1281 q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception);
1282 if (q == (Quantum *) NULL)
1283 break;
1284 length=ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
1285 quantum_type,pixels,exception);
1286 (void) length;
1287 sync=SyncAuthenticPixels(image,exception);
1288 if (sync == MagickFalse)
1289 break;
1290 }
1291 quantum_info=DestroyQuantumInfo(quantum_info);
1292 if (y < (ssize_t) image->rows)
1293 ThrowReaderException(CorruptImageError,"UnableToReadImageData");
1294 SetQuantumImageType(image,quantum_type);
1295 if (EOFBlob(image) != MagickFalse)
1296 ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
1297 image->filename);
1298 if ((i+1) < (ssize_t) dpx.image.number_elements)
1299 {
1300 /*
1301 Allocate next image structure.
1302 */
1303 AcquireNextImage(image_info,image,exception);
1304 if (GetNextImageInList(image) == (Image *) NULL)
1305 {
1306 status=MagickFalse;
1307 break;
1308 }
1309 image=SyncNextImageInList(image);
1310 status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
1311 GetBlobSize(image));
1312 if (status == MagickFalse)
1313 break;
1314 }
1315 }
1316 (void) CloseBlob(image);
1317 if (status == MagickFalse)
1318 return(DestroyImageList(image));
1319 return(GetFirstImageInList(image));
1320 }
1321
1322 /*
1323 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1324 % %
1325 % %
1326 % %
1327 % R e g i s t e r D P X I m a g e %
1328 % %
1329 % %
1330 % %
1331 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1332 %
1333 % RegisterDPXImage() adds properties for the DPX image format to
1334 % the list of supported formats. The properties include the image format
1335 % tag, a method to read and/or write the format, whether the format
1336 % supports the saving of more than one frame to the same file or blob,
1337 % whether the format supports native in-memory I/O, and a brief
1338 % description of the format.
1339 %
1340 % The format of the RegisterDPXImage method is:
1341 %
1342 % size_t RegisterDPXImage(void)
1343 %
1344 */
RegisterDPXImage(void)1345 ModuleExport size_t RegisterDPXImage(void)
1346 {
1347 MagickInfo
1348 *entry;
1349
1350 static const char
1351 *DPXNote =
1352 {
1353 "Digital Moving Picture Exchange Bitmap, Version 2.0.\n"
1354 "See SMPTE 268M-2003 specification at http://www.smtpe.org\n"
1355 };
1356
1357 entry=AcquireMagickInfo("DPX","DPX","SMPTE 268M-2003 (DPX 2.0)");
1358 entry->decoder=(DecodeImageHandler *) ReadDPXImage;
1359 entry->encoder=(EncodeImageHandler *) WriteDPXImage;
1360 entry->magick=(IsImageFormatHandler *) IsDPX;
1361 entry->flags^=CoderAdjoinFlag;
1362 entry->flags|=CoderDecoderSeekableStreamFlag;
1363 entry->note=ConstantString(DPXNote);
1364 (void) RegisterMagickInfo(entry);
1365 return(MagickImageCoderSignature);
1366 }
1367
1368 /*
1369 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1370 % %
1371 % %
1372 % %
1373 % U n r e g i s t e r D P X I m a g e %
1374 % %
1375 % %
1376 % %
1377 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1378 %
1379 % UnregisterDPXImage() removes format registrations made by the
1380 % DPX module from the list of supported formats.
1381 %
1382 % The format of the UnregisterDPXImage method is:
1383 %
1384 % UnregisterDPXImage(void)
1385 %
1386 */
UnregisterDPXImage(void)1387 ModuleExport void UnregisterDPXImage(void)
1388 {
1389 (void) UnregisterMagickInfo("DPX");
1390 }
1391
1392 /*
1393 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1394 % %
1395 % %
1396 % %
1397 % W r i t e D P X I m a g e %
1398 % %
1399 % %
1400 % %
1401 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1402 %
1403 % WriteDPXImage() writes an image in DPX encoded image format.
1404 %
1405 % The format of the WriteDPXImage method is:
1406 %
1407 % MagickBooleanType WriteDPXImage(const ImageInfo *image_info,
1408 % Image *image,ExceptionInfo *exception)
1409 %
1410 % A description of each parameter follows.
1411 %
1412 % o image_info: the image info.
1413 %
1414 % o image: The image.
1415 %
1416 % o exception: return any errors or warnings in this structure.
1417 %
1418 */
1419
StringToTimeCode(const char * key)1420 static unsigned int StringToTimeCode(const char *key)
1421 {
1422 char
1423 buffer[2];
1424
1425 register ssize_t
1426 i;
1427
1428 unsigned int
1429 shift,
1430 value;
1431
1432 value=0;
1433 shift=28;
1434 buffer[1]='\0';
1435 for (i=0; (*key != 0) && (i < 11); i++)
1436 {
1437 if (isxdigit((int) ((unsigned char) *key)) == 0)
1438 {
1439 key++;
1440 continue;
1441 }
1442 buffer[0]=(*key++);
1443 value|=(unsigned int) ((strtol(buffer,(char **) NULL,16)) << shift);
1444 shift-=4;
1445 }
1446 return(value);
1447 }
1448
GetDPXProperty(const Image * image,const char * property,ExceptionInfo * exception)1449 static inline const char *GetDPXProperty(const Image *image,
1450 const char *property,ExceptionInfo *exception)
1451 {
1452 const char
1453 *value;
1454
1455 value=GetImageArtifact(image,property);
1456 if (value != (const char *) NULL)
1457 return(value);
1458 return(GetImageProperty(image,property,exception));
1459 }
1460
WriteDPXImage(const ImageInfo * image_info,Image * image,ExceptionInfo * exception)1461 static MagickBooleanType WriteDPXImage(const ImageInfo *image_info,Image *image,
1462 ExceptionInfo *exception)
1463 {
1464 char
1465 *url;
1466
1467 const char
1468 *value;
1469
1470 const StringInfo
1471 *profile;
1472
1473 DPXInfo
1474 dpx;
1475
1476 GeometryInfo
1477 geometry_info;
1478
1479 MagickBooleanType
1480 status;
1481
1482 MagickOffsetType
1483 offset;
1484
1485 MagickStatusType
1486 flags;
1487
1488 QuantumInfo
1489 *quantum_info;
1490
1491 QuantumType
1492 quantum_type;
1493
1494 register const Quantum
1495 *p;
1496
1497 register ssize_t
1498 i;
1499
1500 size_t
1501 channels,
1502 extent;
1503
1504 ssize_t
1505 count,
1506 horizontal_factor,
1507 vertical_factor,
1508 y;
1509
1510 time_t
1511 seconds;
1512
1513 unsigned char
1514 *pixels;
1515
1516 /*
1517 Open output image file.
1518 */
1519 assert(image_info != (const ImageInfo *) NULL);
1520 assert(image_info->signature == MagickCoreSignature);
1521 assert(image != (Image *) NULL);
1522 assert(image->signature == MagickCoreSignature);
1523 if (image->debug != MagickFalse)
1524 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1525 horizontal_factor=4;
1526 vertical_factor=4;
1527 if (image_info->sampling_factor != (char *) NULL)
1528 {
1529 flags=ParseGeometry(image_info->sampling_factor,&geometry_info);
1530 horizontal_factor=(ssize_t) geometry_info.rho;
1531 vertical_factor=(ssize_t) geometry_info.sigma;
1532 if ((flags & SigmaValue) == 0)
1533 vertical_factor=horizontal_factor;
1534 if ((horizontal_factor != 1) && (horizontal_factor != 2) &&
1535 (horizontal_factor != 4) && (vertical_factor != 1) &&
1536 (vertical_factor != 2) && (vertical_factor != 4))
1537 ThrowWriterException(CorruptImageError,"UnexpectedSamplingFactor");
1538 }
1539 if ((image->colorspace == YCbCrColorspace) &&
1540 ((horizontal_factor == 2) || (vertical_factor == 2)))
1541 if ((image->columns % 2) != 0)
1542 image->columns++;
1543 assert(exception != (ExceptionInfo *) NULL);
1544 assert(exception->signature == MagickCoreSignature);
1545 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
1546 if (status == MagickFalse)
1547 return(status);
1548 /*
1549 Write file header.
1550 */
1551 (void) memset(&dpx,0,sizeof(dpx));
1552 offset=0;
1553 dpx.file.magic=0x53445058U;
1554 offset+=WriteBlobLong(image,dpx.file.magic);
1555 dpx.file.image_offset=0x2000U;
1556 profile=GetImageProfile(image,"dpx:user-data");
1557 if (profile != (StringInfo *) NULL)
1558 {
1559 if (GetStringInfoLength(profile) > 1048576)
1560 ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1561 dpx.file.image_offset+=(unsigned int) GetStringInfoLength(profile);
1562 dpx.file.image_offset=(((dpx.file.image_offset+0x2000-1)/0x2000)*0x2000);
1563 }
1564 offset+=WriteBlobLong(image,dpx.file.image_offset);
1565 (void) strncpy(dpx.file.version,"V2.0",sizeof(dpx.file.version)-1);
1566 offset+=WriteBlob(image,8,(unsigned char *) &dpx.file.version);
1567 channels=1;
1568 if (IsImageGray(image) == MagickFalse)
1569 channels=3;
1570 if (image->alpha_trait != UndefinedPixelTrait)
1571 channels++;
1572 dpx.file.file_size=(unsigned int) (channels*image->columns*image->rows+
1573 dpx.file.image_offset);
1574 offset+=WriteBlobLong(image,dpx.file.file_size);
1575 dpx.file.ditto_key=1U; /* new frame */
1576 offset+=WriteBlobLong(image,dpx.file.ditto_key);
1577 dpx.file.generic_size=0x00000680U;
1578 offset+=WriteBlobLong(image,dpx.file.generic_size);
1579 dpx.file.industry_size=0x00000180U;
1580 offset+=WriteBlobLong(image,dpx.file.industry_size);
1581 dpx.file.user_size=0;
1582 if (profile != (StringInfo *) NULL)
1583 {
1584 dpx.file.user_size+=(unsigned int) GetStringInfoLength(profile);
1585 dpx.file.user_size=(((dpx.file.user_size+0x2000-1)/0x2000)*0x2000);
1586 }
1587 offset+=WriteBlobLong(image,dpx.file.user_size);
1588 value=GetDPXProperty(image,"dpx:file.filename",exception);
1589 if (value != (const char *) NULL)
1590 (void) strncpy(dpx.file.filename,value,sizeof(dpx.file.filename)-1);
1591 offset+=WriteBlob(image,sizeof(dpx.file.filename),(unsigned char *)
1592 dpx.file.filename);
1593 seconds=time((time_t *) NULL);
1594 (void) FormatMagickTime(seconds,sizeof(dpx.file.timestamp),
1595 dpx.file.timestamp);
1596 offset+=WriteBlob(image,sizeof(dpx.file.timestamp),(unsigned char *)
1597 dpx.file.timestamp);
1598 url=GetMagickHomeURL();
1599 (void) strncpy(dpx.file.creator,url,sizeof(dpx.file.creator)-1);
1600 url=DestroyString(url);
1601 value=GetDPXProperty(image,"dpx:file.creator",exception);
1602 if (value != (const char *) NULL)
1603 (void) strncpy(dpx.file.creator,value,sizeof(dpx.file.creator)-1);
1604 offset+=WriteBlob(image,sizeof(dpx.file.creator),(unsigned char *)
1605 dpx.file.creator);
1606 value=GetDPXProperty(image,"dpx:file.project",exception);
1607 if (value != (const char *) NULL)
1608 (void) strncpy(dpx.file.project,value,sizeof(dpx.file.project)-1);
1609 offset+=WriteBlob(image,sizeof(dpx.file.project),(unsigned char *)
1610 dpx.file.project);
1611 value=GetDPXProperty(image,"dpx:file.copyright",exception);
1612 if (value != (const char *) NULL)
1613 (void) strncpy(dpx.file.copyright,value,sizeof(dpx.file.copyright)-1);
1614 offset+=WriteBlob(image,sizeof(dpx.file.copyright),(unsigned char *)
1615 dpx.file.copyright);
1616 dpx.file.encrypt_key=(~0U);
1617 offset+=WriteBlobLong(image,dpx.file.encrypt_key);
1618 offset+=WriteBlob(image,sizeof(dpx.file.reserve),(unsigned char *)
1619 dpx.file.reserve);
1620 /*
1621 Write image header.
1622 */
1623 switch (image->orientation)
1624 {
1625 default:
1626 case TopLeftOrientation: dpx.image.orientation=0; break;
1627 case TopRightOrientation: dpx.image.orientation=1; break;
1628 case BottomLeftOrientation: dpx.image.orientation=2; break;
1629 case BottomRightOrientation: dpx.image.orientation=3; break;
1630 case LeftTopOrientation: dpx.image.orientation=4; break;
1631 case RightTopOrientation: dpx.image.orientation=5; break;
1632 case LeftBottomOrientation: dpx.image.orientation=6; break;
1633 case RightBottomOrientation: dpx.image.orientation=7; break;
1634 }
1635 offset+=WriteBlobShort(image,dpx.image.orientation);
1636 dpx.image.number_elements=1;
1637 offset+=WriteBlobShort(image,dpx.image.number_elements);
1638 if ((image->columns != (unsigned int) image->columns) ||
1639 (image->rows != (unsigned int) image->rows))
1640 ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1641 offset+=WriteBlobLong(image,(unsigned int) image->columns);
1642 offset+=WriteBlobLong(image,(unsigned int) image->rows);
1643 for (i=0; i < 8; i++)
1644 {
1645 dpx.image.image_element[i].data_sign=0U;
1646 offset+=WriteBlobLong(image,dpx.image.image_element[i].data_sign);
1647 dpx.image.image_element[i].low_data=0U;
1648 offset+=WriteBlobLong(image,dpx.image.image_element[i].low_data);
1649 dpx.image.image_element[i].low_quantity=0.0f;
1650 offset+=WriteBlobFloat(image,dpx.image.image_element[i].low_quantity);
1651 dpx.image.image_element[i].high_data=0U;
1652 offset+=WriteBlobLong(image,dpx.image.image_element[i].high_data);
1653 dpx.image.image_element[i].high_quantity=0.0f;
1654 offset+=WriteBlobFloat(image,dpx.image.image_element[i].high_quantity);
1655 dpx.image.image_element[i].descriptor=0;
1656 if (i == 0)
1657 switch (image->colorspace)
1658 {
1659 case Rec601YCbCrColorspace:
1660 case Rec709YCbCrColorspace:
1661 case YCbCrColorspace:
1662 {
1663 dpx.image.image_element[i].descriptor=CbYCr444ComponentType;
1664 if (image->alpha_trait != UndefinedPixelTrait)
1665 dpx.image.image_element[i].descriptor=CbYCrA4444ComponentType;
1666 break;
1667 }
1668 default:
1669 {
1670 dpx.image.image_element[i].descriptor=RGBComponentType;
1671 if (image->alpha_trait != UndefinedPixelTrait)
1672 dpx.image.image_element[i].descriptor=RGBAComponentType;
1673 if ((image_info->type != TrueColorType) &&
1674 (image->alpha_trait == UndefinedPixelTrait) &&
1675 (SetImageGray(image,exception) != MagickFalse))
1676 dpx.image.image_element[i].descriptor=LumaComponentType;
1677 break;
1678 }
1679 }
1680 offset+=WriteBlobByte(image,dpx.image.image_element[i].descriptor);
1681 dpx.image.image_element[i].transfer_characteristic=0;
1682 if (image->colorspace == LogColorspace)
1683 dpx.image.image_element[0].transfer_characteristic=
1684 PrintingDensityColorimetric;
1685 offset+=WriteBlobByte(image,
1686 dpx.image.image_element[i].transfer_characteristic);
1687 dpx.image.image_element[i].colorimetric=0;
1688 offset+=WriteBlobByte(image,dpx.image.image_element[i].colorimetric);
1689 dpx.image.image_element[i].bit_size=0;
1690 if (i == 0)
1691 dpx.image.image_element[i].bit_size=(unsigned char) image->depth;
1692 offset+=WriteBlobByte(image,dpx.image.image_element[i].bit_size);
1693 dpx.image.image_element[i].packing=0;
1694 if ((image->depth == 10) || (image->depth == 12))
1695 dpx.image.image_element[i].packing=1;
1696 offset+=WriteBlobShort(image,dpx.image.image_element[i].packing);
1697 dpx.image.image_element[i].encoding=0;
1698 offset+=WriteBlobShort(image,dpx.image.image_element[i].encoding);
1699 dpx.image.image_element[i].data_offset=0U;
1700 if (i == 0)
1701 dpx.image.image_element[i].data_offset=dpx.file.image_offset;
1702 offset+=WriteBlobLong(image,dpx.image.image_element[i].data_offset);
1703 dpx.image.image_element[i].end_of_line_padding=0U;
1704 offset+=WriteBlobLong(image,dpx.image.image_element[i].end_of_line_padding);
1705 offset+=WriteBlobLong(image,
1706 dpx.image.image_element[i].end_of_image_padding);
1707 offset+=WriteBlob(image,sizeof(dpx.image.image_element[i].description),
1708 (unsigned char *) dpx.image.image_element[i].description);
1709 }
1710 offset+=WriteBlob(image,sizeof(dpx.image.reserve),(unsigned char *)
1711 dpx.image.reserve);
1712 /*
1713 Write orientation header.
1714 */
1715 if ((image->rows != image->magick_rows) ||
1716 (image->columns != image->magick_columns))
1717 {
1718 /*
1719 These properties are not valid if image size changed.
1720 */
1721 (void) DeleteImageProperty(image,"dpx:orientation.x_offset");
1722 (void) DeleteImageProperty(image,"dpx:orientation.y_offset");
1723 (void) DeleteImageProperty(image,"dpx:orientation.x_center");
1724 (void) DeleteImageProperty(image,"dpx:orientation.y_center");
1725 (void) DeleteImageProperty(image,"dpx:orientation.x_size");
1726 (void) DeleteImageProperty(image,"dpx:orientation.y_size");
1727 }
1728 dpx.orientation.x_offset=0U;
1729 value=GetDPXProperty(image,"dpx:orientation.x_offset",exception);
1730 if (value != (const char *) NULL)
1731 dpx.orientation.x_offset=(unsigned int) StringToUnsignedLong(value);
1732 offset+=WriteBlobLong(image,dpx.orientation.x_offset);
1733 dpx.orientation.y_offset=0U;
1734 value=GetDPXProperty(image,"dpx:orientation.y_offset",exception);
1735 if (value != (const char *) NULL)
1736 dpx.orientation.y_offset=(unsigned int) StringToUnsignedLong(value);
1737 offset+=WriteBlobLong(image,dpx.orientation.y_offset);
1738 dpx.orientation.x_center=0.0f;
1739 value=GetDPXProperty(image,"dpx:orientation.x_center",exception);
1740 if (value != (const char *) NULL)
1741 dpx.orientation.x_center=StringToDouble(value,(char **) NULL);
1742 offset+=WriteBlobFloat(image,dpx.orientation.x_center);
1743 dpx.orientation.y_center=0.0f;
1744 value=GetDPXProperty(image,"dpx:orientation.y_center",exception);
1745 if (value != (const char *) NULL)
1746 dpx.orientation.y_center=StringToDouble(value,(char **) NULL);
1747 offset+=WriteBlobFloat(image,dpx.orientation.y_center);
1748 dpx.orientation.x_size=0U;
1749 value=GetDPXProperty(image,"dpx:orientation.x_size",exception);
1750 if (value != (const char *) NULL)
1751 dpx.orientation.x_size=(unsigned int) StringToUnsignedLong(value);
1752 offset+=WriteBlobLong(image,dpx.orientation.x_size);
1753 dpx.orientation.y_size=0U;
1754 value=GetDPXProperty(image,"dpx:orientation.y_size",exception);
1755 if (value != (const char *) NULL)
1756 dpx.orientation.y_size=(unsigned int) StringToUnsignedLong(value);
1757 offset+=WriteBlobLong(image,dpx.orientation.y_size);
1758 value=GetDPXProperty(image,"dpx:orientation.filename",exception);
1759 if (value != (const char *) NULL)
1760 (void) strncpy(dpx.orientation.filename,value,
1761 sizeof(dpx.orientation.filename)-1);
1762 offset+=WriteBlob(image,sizeof(dpx.orientation.filename),(unsigned char *)
1763 dpx.orientation.filename);
1764 offset+=WriteBlob(image,sizeof(dpx.orientation.timestamp),(unsigned char *)
1765 dpx.orientation.timestamp);
1766 value=GetDPXProperty(image,"dpx:orientation.device",exception);
1767 if (value != (const char *) NULL)
1768 (void) strncpy(dpx.orientation.device,value,
1769 sizeof(dpx.orientation.device)-1);
1770 offset+=WriteBlob(image,sizeof(dpx.orientation.device),(unsigned char *)
1771 dpx.orientation.device);
1772 value=GetDPXProperty(image,"dpx:orientation.serial",exception);
1773 if (value != (const char *) NULL)
1774 (void) strncpy(dpx.orientation.serial,value,
1775 sizeof(dpx.orientation.serial)-1);
1776 offset+=WriteBlob(image,sizeof(dpx.orientation.serial),(unsigned char *)
1777 dpx.orientation.serial);
1778 for (i=0; i < 4; i++)
1779 dpx.orientation.border[i]=0;
1780 value=GetDPXProperty(image,"dpx:orientation.border",exception);
1781 if (value != (const char *) NULL)
1782 {
1783 flags=ParseGeometry(value,&geometry_info);
1784 if ((flags & SigmaValue) == 0)
1785 geometry_info.sigma=geometry_info.rho;
1786 dpx.orientation.border[0]=(unsigned short) (geometry_info.rho+0.5);
1787 dpx.orientation.border[1]=(unsigned short) (geometry_info.sigma+0.5);
1788 dpx.orientation.border[2]=(unsigned short) (geometry_info.xi+0.5);
1789 dpx.orientation.border[3]=(unsigned short) (geometry_info.psi+0.5);
1790 }
1791 for (i=0; i < 4; i++)
1792 offset+=WriteBlobShort(image,dpx.orientation.border[i]);
1793 for (i=0; i < 2; i++)
1794 dpx.orientation.aspect_ratio[i]=0U;
1795 value=GetDPXProperty(image,"dpx:orientation.aspect_ratio",exception);
1796 if (value != (const char *) NULL)
1797 {
1798 flags=ParseGeometry(value,&geometry_info);
1799 if ((flags & SigmaValue) == 0)
1800 geometry_info.sigma=geometry_info.rho;
1801 dpx.orientation.aspect_ratio[0]=(unsigned int) (geometry_info.rho+0.5);
1802 dpx.orientation.aspect_ratio[1]=(unsigned int) (geometry_info.sigma+0.5);
1803 }
1804 for (i=0; i < 2; i++)
1805 offset+=WriteBlobLong(image,dpx.orientation.aspect_ratio[i]);
1806 offset+=WriteBlob(image,sizeof(dpx.orientation.reserve),(unsigned char *)
1807 dpx.orientation.reserve);
1808 /*
1809 Write film header.
1810 */
1811 (void) memset(dpx.film.id,0,sizeof(dpx.film.id));
1812 value=GetDPXProperty(image,"dpx:film.id",exception);
1813 if (value != (const char *) NULL)
1814 (void) strncpy(dpx.film.id,value,sizeof(dpx.film.id)-1);
1815 offset+=WriteBlob(image,sizeof(dpx.film.id),(unsigned char *) dpx.film.id);
1816 (void) memset(dpx.film.type,0,sizeof(dpx.film.type));
1817 value=GetDPXProperty(image,"dpx:film.type",exception);
1818 if (value != (const char *) NULL)
1819 (void) strncpy(dpx.film.type,value,sizeof(dpx.film.type)-1);
1820 offset+=WriteBlob(image,sizeof(dpx.film.type),(unsigned char *)
1821 dpx.film.type);
1822 (void) memset(dpx.film.offset,0,sizeof(dpx.film.offset));
1823 value=GetDPXProperty(image,"dpx:film.offset",exception);
1824 if (value != (const char *) NULL)
1825 (void) strncpy(dpx.film.offset,value,sizeof(dpx.film.offset)-1);
1826 offset+=WriteBlob(image,sizeof(dpx.film.offset),(unsigned char *)
1827 dpx.film.offset);
1828 (void) memset(dpx.film.prefix,0,sizeof(dpx.film.prefix));
1829 value=GetDPXProperty(image,"dpx:film.prefix",exception);
1830 if (value != (const char *) NULL)
1831 (void) strncpy(dpx.film.prefix,value,sizeof(dpx.film.prefix)-1);
1832 offset+=WriteBlob(image,sizeof(dpx.film.prefix),(unsigned char *)
1833 dpx.film.prefix);
1834 (void) memset(dpx.film.count,0,sizeof(dpx.film.count));
1835 value=GetDPXProperty(image,"dpx:film.count",exception);
1836 if (value != (const char *) NULL)
1837 (void) strncpy(dpx.film.count,value,sizeof(dpx.film.count)-1);
1838 offset+=WriteBlob(image,sizeof(dpx.film.count),(unsigned char *)
1839 dpx.film.count);
1840 (void) memset(dpx.film.format,0,sizeof(dpx.film.format));
1841 value=GetDPXProperty(image,"dpx:film.format",exception);
1842 if (value != (const char *) NULL)
1843 (void) strncpy(dpx.film.format,value,sizeof(dpx.film.format)-1);
1844 offset+=WriteBlob(image,sizeof(dpx.film.format),(unsigned char *)
1845 dpx.film.format);
1846 dpx.film.frame_position=0U;
1847 value=GetDPXProperty(image,"dpx:film.frame_position",exception);
1848 if (value != (const char *) NULL)
1849 dpx.film.frame_position=(unsigned int) StringToUnsignedLong(value);
1850 offset+=WriteBlobLong(image,dpx.film.frame_position);
1851 dpx.film.sequence_extent=0U;
1852 value=GetDPXProperty(image,"dpx:film.sequence_extent",exception);
1853 if (value != (const char *) NULL)
1854 dpx.film.sequence_extent=(unsigned int) StringToUnsignedLong(value);
1855 offset+=WriteBlobLong(image,dpx.film.sequence_extent);
1856 dpx.film.held_count=0U;
1857 value=GetDPXProperty(image,"dpx:film.held_count",exception);
1858 if (value != (const char *) NULL)
1859 dpx.film.held_count=(unsigned int) StringToUnsignedLong(value);
1860 offset+=WriteBlobLong(image,dpx.film.held_count);
1861 dpx.film.frame_rate=0.0f;
1862 value=GetDPXProperty(image,"dpx:film.frame_rate",exception);
1863 if (value != (const char *) NULL)
1864 dpx.film.frame_rate=StringToDouble(value,(char **) NULL);
1865 offset+=WriteBlobFloat(image,dpx.film.frame_rate);
1866 dpx.film.shutter_angle=0.0f;
1867 value=GetDPXProperty(image,"dpx:film.shutter_angle",exception);
1868 if (value != (const char *) NULL)
1869 dpx.film.shutter_angle=StringToDouble(value,(char **) NULL);
1870 offset+=WriteBlobFloat(image,dpx.film.shutter_angle);
1871 (void) memset(dpx.film.frame_id,0,sizeof(dpx.film.frame_id));
1872 value=GetDPXProperty(image,"dpx:film.frame_id",exception);
1873 if (value != (const char *) NULL)
1874 (void) strncpy(dpx.film.frame_id,value,sizeof(dpx.film.frame_id)-1);
1875 offset+=WriteBlob(image,sizeof(dpx.film.frame_id),(unsigned char *)
1876 dpx.film.frame_id);
1877 value=GetDPXProperty(image,"dpx:film.slate",exception);
1878 if (value != (const char *) NULL)
1879 (void) strncpy(dpx.film.slate,value,sizeof(dpx.film.slate)-1);
1880 offset+=WriteBlob(image,sizeof(dpx.film.slate),(unsigned char *)
1881 dpx.film.slate);
1882 offset+=WriteBlob(image,sizeof(dpx.film.reserve),(unsigned char *)
1883 dpx.film.reserve);
1884 /*
1885 Write television header.
1886 */
1887 value=GetDPXProperty(image,"dpx:television.time.code",exception);
1888 if (value != (const char *) NULL)
1889 dpx.television.time_code=StringToTimeCode(value);
1890 offset+=WriteBlobLong(image,dpx.television.time_code);
1891 value=GetDPXProperty(image,"dpx:television.user.bits",exception);
1892 if (value != (const char *) NULL)
1893 dpx.television.user_bits=StringToTimeCode(value);
1894 offset+=WriteBlobLong(image,dpx.television.user_bits);
1895 value=GetDPXProperty(image,"dpx:television.interlace",exception);
1896 if (value != (const char *) NULL)
1897 dpx.television.interlace=(unsigned char) StringToLong(value);
1898 offset+=WriteBlobByte(image,dpx.television.interlace);
1899 value=GetDPXProperty(image,"dpx:television.field_number",exception);
1900 if (value != (const char *) NULL)
1901 dpx.television.field_number=(unsigned char) StringToLong(value);
1902 offset+=WriteBlobByte(image,dpx.television.field_number);
1903 dpx.television.video_signal=0;
1904 value=GetDPXProperty(image,"dpx:television.video_signal",exception);
1905 if (value != (const char *) NULL)
1906 dpx.television.video_signal=(unsigned char) StringToLong(value);
1907 offset+=WriteBlobByte(image,dpx.television.video_signal);
1908 dpx.television.padding=0;
1909 value=GetDPXProperty(image,"dpx:television.padding",exception);
1910 if (value != (const char *) NULL)
1911 dpx.television.padding=(unsigned char) StringToLong(value);
1912 offset+=WriteBlobByte(image,dpx.television.padding);
1913 dpx.television.horizontal_sample_rate=0.0f;
1914 value=GetDPXProperty(image,"dpx:television.horizontal_sample_rate",
1915 exception);
1916 if (value != (const char *) NULL)
1917 dpx.television.horizontal_sample_rate=StringToDouble(value,(char **) NULL);
1918 offset+=WriteBlobFloat(image,dpx.television.horizontal_sample_rate);
1919 dpx.television.vertical_sample_rate=0.0f;
1920 value=GetDPXProperty(image,"dpx:television.vertical_sample_rate",exception);
1921 if (value != (const char *) NULL)
1922 dpx.television.vertical_sample_rate=StringToDouble(value,(char **) NULL);
1923 offset+=WriteBlobFloat(image,dpx.television.vertical_sample_rate);
1924 dpx.television.frame_rate=0.0f;
1925 value=GetDPXProperty(image,"dpx:television.frame_rate",exception);
1926 if (value != (const char *) NULL)
1927 dpx.television.frame_rate=StringToDouble(value,(char **) NULL);
1928 offset+=WriteBlobFloat(image,dpx.television.frame_rate);
1929 dpx.television.time_offset=0.0f;
1930 value=GetDPXProperty(image,"dpx:television.time_offset",exception);
1931 if (value != (const char *) NULL)
1932 dpx.television.time_offset=StringToDouble(value,(char **) NULL);
1933 offset+=WriteBlobFloat(image,dpx.television.time_offset);
1934 dpx.television.gamma=0.0f;
1935 value=GetDPXProperty(image,"dpx:television.gamma",exception);
1936 if (value != (const char *) NULL)
1937 dpx.television.gamma=StringToDouble(value,(char **) NULL);
1938 offset+=WriteBlobFloat(image,dpx.television.gamma);
1939 dpx.television.black_level=0.0f;
1940 value=GetDPXProperty(image,"dpx:television.black_level",exception);
1941 if (value != (const char *) NULL)
1942 dpx.television.black_level=StringToDouble(value,(char **) NULL);
1943 offset+=WriteBlobFloat(image,dpx.television.black_level);
1944 dpx.television.black_gain=0.0f;
1945 value=GetDPXProperty(image,"dpx:television.black_gain",exception);
1946 if (value != (const char *) NULL)
1947 dpx.television.black_gain=StringToDouble(value,(char **) NULL);
1948 offset+=WriteBlobFloat(image,dpx.television.black_gain);
1949 dpx.television.break_point=0.0f;
1950 value=GetDPXProperty(image,"dpx:television.break_point",exception);
1951 if (value != (const char *) NULL)
1952 dpx.television.break_point=StringToDouble(value,(char **) NULL);
1953 offset+=WriteBlobFloat(image,dpx.television.break_point);
1954 dpx.television.white_level=0.0f;
1955 value=GetDPXProperty(image,"dpx:television.white_level",exception);
1956 if (value != (const char *) NULL)
1957 dpx.television.white_level=StringToDouble(value,(char **) NULL);
1958 offset+=WriteBlobFloat(image,dpx.television.white_level);
1959 dpx.television.integration_times=0.0f;
1960 value=GetDPXProperty(image,"dpx:television.integration_times",exception);
1961 if (value != (const char *) NULL)
1962 dpx.television.integration_times=StringToDouble(value,(char **) NULL);
1963 offset+=WriteBlobFloat(image,dpx.television.integration_times);
1964 offset+=WriteBlob(image,sizeof(dpx.television.reserve),(unsigned char *)
1965 dpx.television.reserve);
1966 /*
1967 Write user header.
1968 */
1969 value=GetDPXProperty(image,"dpx:user.id",exception);
1970 if (value != (const char *) NULL)
1971 (void) strncpy(dpx.user.id,value,sizeof(dpx.user.id)-1);
1972 offset+=WriteBlob(image,sizeof(dpx.user.id),(unsigned char *) dpx.user.id);
1973 if (profile != (StringInfo *) NULL)
1974 offset+=WriteBlob(image,GetStringInfoLength(profile),
1975 GetStringInfoDatum(profile));
1976 while (offset < (MagickOffsetType) dpx.image.image_element[0].data_offset)
1977 {
1978 count=WriteBlobByte(image,0x00);
1979 if (count != 1)
1980 {
1981 ThrowFileException(exception,FileOpenError,"UnableToWriteFile",
1982 image->filename);
1983 break;
1984 }
1985 offset+=count;
1986 }
1987 /*
1988 Convert pixel packets to DPX raster image.
1989 */
1990 quantum_info=AcquireQuantumInfo(image_info,image);
1991 if (quantum_info == (QuantumInfo *) NULL)
1992 ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1993 SetQuantumQuantum(quantum_info,32);
1994 SetQuantumPack(quantum_info,dpx.image.image_element[0].packing == 0 ?
1995 MagickTrue : MagickFalse);
1996 quantum_type=RGBQuantum;
1997 if (image->alpha_trait != UndefinedPixelTrait)
1998 quantum_type=RGBAQuantum;
1999 if (image->colorspace == YCbCrColorspace)
2000 {
2001 quantum_type=CbYCrQuantum;
2002 if (image->alpha_trait != UndefinedPixelTrait)
2003 quantum_type=CbYCrAQuantum;
2004 if ((horizontal_factor == 2) || (vertical_factor == 2))
2005 quantum_type=CbYCrYQuantum;
2006 }
2007 extent=GetBytesPerRow(image->columns,
2008 image->alpha_trait != UndefinedPixelTrait ? 4UL : 3UL,image->depth,
2009 dpx.image.image_element[0].packing == 0 ? MagickFalse : MagickTrue);
2010 if ((image_info->type != TrueColorType) &&
2011 (image->alpha_trait == UndefinedPixelTrait) &&
2012 (SetImageGray(image,exception) != MagickFalse))
2013 {
2014 quantum_type=GrayQuantum;
2015 extent=GetBytesPerRow(image->columns,1UL,image->depth,
2016 dpx.image.image_element[0].packing == 0 ? MagickFalse : MagickTrue);
2017 }
2018 pixels=(unsigned char *) GetQuantumPixels(quantum_info);
2019 for (y=0; y < (ssize_t) image->rows; y++)
2020 {
2021 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
2022 if (p == (const Quantum *) NULL)
2023 break;
2024 (void) ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
2025 quantum_type,pixels,exception);
2026 count=WriteBlob(image,extent,pixels);
2027 if (count != (ssize_t) extent)
2028 break;
2029 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
2030 image->rows);
2031 if (status == MagickFalse)
2032 break;
2033 }
2034 quantum_info=DestroyQuantumInfo(quantum_info);
2035 (void) CloseBlob(image);
2036 return(status);
2037 }
2038