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gerrit-public.fairphone.software / platform / external / ImageMagick / 3ed852eea50f9d4cd633efb8c2b054b8e33c2530 / . / coders / dpx.c
blob: bb84e2e5c303fbe416935c977ae9bf5526c7f0a7 [file] [log] [blame]
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame^]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% John Cristy %
17% March 2001 %
18% %
19% %
20% Copyright 1999-2008 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% http://www.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 "magick/studio.h"
43#include "magick/blob.h"
44#include "magick/blob-private.h"
45#include "magick/cache.h"
46#include "magick/colorspace.h"
47#include "magick/exception.h"
48#include "magick/exception-private.h"
49#include "magick/geometry.h"
50#include "magick/image.h"
51#include "magick/image-private.h"
52#include "magick/list.h"
53#include "magick/magick.h"
54#include "magick/memory_.h"
55#include "magick/monitor.h"
56#include "magick/monitor-private.h"
57#include "magick/option.h"
58#include "magick/profile.h"
59#include "magick/property.h"
60#include "magick/quantum-private.h"
61#include "magick/static.h"
62#include "magick/string_.h"
63#include "magick/module.h"
64#include "magick/module.h"
65
66/*
67 Typedef declaration.
68*/
69typedef enum
70{
71 UserDefinedColorimetric = 0,
72 PrintingDensityColorimetric = 1,
73 LinearColorimetric = 2,
74 LogarithmicColorimetric = 3,
75 UnspecifiedVideoColorimetric = 4,
76 SMTPE_274MColorimetric = 5,
77 ITU_R709Colorimetric = 6,
78 ITU_R601_625LColorimetric = 7,
79 ITU_R601_525LColorimetric = 8,
80 NTSCCompositeVideoColorimetric = 9,
81 PALCompositeVideoColorimetric = 10,
82 ZDepthLinearColorimetric = 11,
83 DepthHomogeneousColorimetric = 12
84} DPXColorimetric;
85
86typedef enum
87{
88 UndefinedComponentType = 0,
89 RedComponentType = 1,
90 GreenComponentType = 2,
91 BlueComponentType = 3,
92 AlphaComponentType = 4,
93 LumaComponentType = 6,
94 ColorDifferenceCbCrComponentType = 7,
95 DepthComponentType = 8,
96 CompositeVideoComponentType = 9,
97 RGBComponentType = 50,
98 RGBAComponentType = 51,
99 ABGRComponentType = 52,
100 CbYCrY422ComponentType = 100,
101 CbYACrYA4224ComponentType = 101,
102 CbYCr444ComponentType = 102,
103 CbYCrA4444ComponentType = 103,
104 UserDef2ElementComponentType = 150,
105 UserDef3ElementComponentType = 151,
106 UserDef4ElementComponentType = 152,
107 UserDef5ElementComponentType = 153,
108 UserDef6ElementComponentType = 154,
109 UserDef7ElementComponentType = 155,
110 UserDef8ElementComponentType = 156
111} DPXComponentType;
112
113typedef struct _DPXFileInfo
114{
115 unsigned int
116 magic,
117 image_offset;
118
119 char
120 version[8];
121
122 unsigned int
123 file_size,
124 ditto_key,
125 generic_size,
126 industry_size,
127 user_size;
128
129 char
130 filename[100],
131 timestamp[24],
132 creator[100],
133 project[200],
134 copyright[200];
135
136 unsigned int
137 encrypt_key;
138
139 char
140 reserve[104];
141} DPXFileInfo;
142
143typedef struct _DPXFilmInfo
144{
145 char
146 id[2],
147 type[2],
148 offset[2],
149 prefix[6],
150 count[4],
151 format[32];
152
153 unsigned int
154 frame_position,
155 sequence_extent,
156 held_count;
157
158 float
159 frame_rate,
160 shutter_angle;
161
162 char
163 frame_id[32],
164 slate[100],
165 reserve[56];
166} DPXFilmInfo;
167
168typedef struct _DPXImageElement
169{
170 unsigned int
171 data_sign,
172 low_data;
173
174 float
175 low_quantity;
176
177 unsigned int
178 high_data;
179
180 float
181 high_quantity;
182
183 unsigned char
184 descriptor,
185 transfer,
186 colorimetric,
187 bit_size;
188
189 unsigned short
190 packing,
191 encoding;
192
193 unsigned int
194 data_offset,
195 end_of_line_padding,
196 end_of_image_padding;
197
198 unsigned char
199 description[32];
200} DPXImageElement;
201
202typedef struct _DPXImageInfo
203{
204 unsigned short
205 orientation,
206 number_elements;
207
208 unsigned int
209 pixels_per_line,
210 lines_per_element;
211
212 DPXImageElement
213 image_element[8];
214
215 unsigned char
216 reserve[52];
217} DPXImageInfo;
218
219typedef struct _DPXOrientationInfo
220{
221 unsigned int
222 x_offset,
223 y_offset;
224
225 float
226 x_center,
227 y_center;
228
229 unsigned int
230 x_size,
231 y_size;
232
233 char
234 filename[100],
235 timestamp[24],
236 device[32],
237 serial[32];
238
239 unsigned short
240 border[4];
241
242 unsigned int
243 aspect_ratio[2];
244
245 unsigned char
246 reserve[28];
247} DPXOrientationInfo;
248
249typedef struct _DPXTelevisionInfo
250{
251 unsigned int
252 time_code,
253 user_bits;
254
255 unsigned char
256 interlace,
257 field_number,
258 video_signal,
259 padding;
260
261 float
262 horizontal_sample_rate,
263 vertical_sample_rate,
264 frame_rate,
265 time_offset,
266 gamma,
267 black_level,
268 black_gain,
269 break_point,
270 white_level,
271 integration_times;
272
273 char
274 reserve[76];
275} DPXTelevisionInfo;
276
277typedef struct _DPXUserInfo
278{
279 char
280 id[32];
281} DPXUserInfo;
282
283typedef struct DPXInfo
284{
285 DPXFileInfo
286 file;
287
288 DPXImageInfo
289 image;
290
291 DPXOrientationInfo
292 orientation;
293
294 DPXFilmInfo
295 film;
296
297 DPXTelevisionInfo
298 television;
299
300 DPXUserInfo
301 user;
302} DPXInfo;
303
304/*
305 Forward declaractions.
306*/
307static MagickBooleanType
308 WriteDPXImage(const ImageInfo *,Image *);
309
310/*
311%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
312% %
313% %
314% %
315% I s D P X %
316% %
317% %
318% %
319%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
320%
321% IsDPX() returns MagickTrue if the image format type, identified by the
322% magick string, is DPX.
323%
324% The format of the IsDPX method is:
325%
326% MagickBooleanType IsDPX(const unsigned char *magick,const size_t extent)
327%
328% A description of each parameter follows:
329%
330% o magick: compare image format pattern against these bytes.
331%
332% o extent: Specifies the extent of the magick string.
333%
334*/
335static MagickBooleanType IsDPX(const unsigned char *magick,const size_t extent)
336{
337 if (extent < 4)
338 return(MagickFalse);
339 if (memcmp(magick,"SDPX",4) == 0)
340 return(MagickTrue);
341 if (memcmp(magick,"XPDS",4) == 0)
342 return(MagickTrue);
343 return(MagickFalse);
344}
345
346/*
347%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
348% %
349% %
350% %
351% R e a d D P X I m a g e %
352% %
353% %
354% %
355%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
356%
357% ReadDPXImage() reads an DPX X image file and returns it. It
358% allocates the memory necessary for the new Image structure and returns a
359% pointer to the new image.
360%
361% The format of the ReadDPXImage method is:
362%
363% Image *ReadDPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
364%
365% A description of each parameter follows:
366%
367% o image_info: the image info.
368%
369% o exception: return any errors or warnings in this structure.
370%
371*/
372
373static size_t GetBytesPerRow(unsigned long columns,
374 unsigned long samples_per_pixel,unsigned long bits_per_pixel,
375 MagickBooleanType pad)
376{
377 size_t
378 bytes_per_row;
379
380 switch (bits_per_pixel)
381 {
382 case 1:
383 {
384 bytes_per_row=4*(((size_t) samples_per_pixel*columns*
385 bits_per_pixel+31)/32);
386 break;
387 }
388 case 8:
389 default:
390 {
391 bytes_per_row=4*(((size_t) samples_per_pixel*columns*
392 bits_per_pixel+31)/32);
393 break;
394 }
395 case 10:
396 {
397 if (pad == MagickFalse)
398 {
399 bytes_per_row=4*(((size_t) samples_per_pixel*columns*
400 bits_per_pixel+31)/32);
401 break;
402 }
403 bytes_per_row=4*(((size_t) (32*((samples_per_pixel*columns)/3))+31)/32);
404 break;
405 }
406 case 12:
407 {
408 if (pad == MagickFalse)
409 {
410 bytes_per_row=4*(((size_t) samples_per_pixel*columns*
411 bits_per_pixel+31)/32);
412 break;
413 }
414 bytes_per_row=2*(((size_t) (16*samples_per_pixel*columns)+15)/16);
415 break;
416 }
417 case 16:
418 {
419 bytes_per_row=2*(((size_t) samples_per_pixel*columns*
420 bits_per_pixel+8)/16);
421 break;
422 }
423 case 32:
424 {
425 bytes_per_row=4*(((size_t) samples_per_pixel*columns*
426 bits_per_pixel+31)/32);
427 break;
428 }
429 case 64:
430 {
431 bytes_per_row=8*(((size_t) samples_per_pixel*columns*
432 bits_per_pixel+63)/64);
433 break;
434 }
435 }
436 return(bytes_per_row);
437}
438
439static inline MagickBooleanType IsFloatDefined(const float value)
440{
441 union
442 {
443 unsigned int
444 unsigned_value;
445
446 float
447 float_value;
448 } quantum;
449
450 quantum.unsigned_value=0U;
451 quantum.float_value=(double) value;
452 if (quantum.unsigned_value == 0U)
453 return(MagickFalse);
454 return(MagickTrue);
455}
456
457static void SetPrimaryChromaticity(const DPXColorimetric colorimetric,
458 ChromaticityInfo *chromaticity_info)
459{
460 switch(colorimetric)
461 {
462 case SMTPE_274MColorimetric:
463 case ITU_R709Colorimetric:
464 {
465 chromaticity_info->red_primary.x=0.640;
466 chromaticity_info->red_primary.y=0.330;
467 chromaticity_info->red_primary.z=0.030;
468 chromaticity_info->green_primary.x=0.300;
469 chromaticity_info->green_primary.y=0.600;
470 chromaticity_info->green_primary.z=0.100;
471 chromaticity_info->blue_primary.x=0.150;
472 chromaticity_info->blue_primary.y=0.060;
473 chromaticity_info->blue_primary.z=0.790;
474 chromaticity_info->white_point.x=0.3127;
475 chromaticity_info->white_point.y=0.3290;
476 chromaticity_info->white_point.z=0.3582;
477 break;
478 }
479 case NTSCCompositeVideoColorimetric:
480 {
481 chromaticity_info->red_primary.x=0.67;
482 chromaticity_info->red_primary.y=0.33;
483 chromaticity_info->red_primary.z=0.00;
484 chromaticity_info->green_primary.x=0.21;
485 chromaticity_info->green_primary.y=0.71;
486 chromaticity_info->green_primary.z=0.08;
487 chromaticity_info->blue_primary.x=0.14;
488 chromaticity_info->blue_primary.y=0.08;
489 chromaticity_info->blue_primary.z=0.78;
490 chromaticity_info->white_point.x=0.310;
491 chromaticity_info->white_point.y=0.316;
492 chromaticity_info->white_point.z=0.374;
493 break;
494 }
495 case PALCompositeVideoColorimetric:
496 {
497 chromaticity_info->red_primary.x=0.640;
498 chromaticity_info->red_primary.y=0.330;
499 chromaticity_info->red_primary.z=0.030;
500 chromaticity_info->green_primary.x=0.290;
501 chromaticity_info->green_primary.y=0.600;
502 chromaticity_info->green_primary.z=0.110;
503 chromaticity_info->blue_primary.x=0.150;
504 chromaticity_info->blue_primary.y=0.060;
505 chromaticity_info->blue_primary.z=0.790;
506 chromaticity_info->white_point.x=0.3127;
507 chromaticity_info->white_point.y=0.3290;
508 chromaticity_info->white_point.z=0.3582;
509 break;
510 }
511 default:
512 break;
513 }
514}
515
516static void TimeCodeToString(const unsigned long timestamp,char *code)
517{
518#define TimeFields 7
519
520 unsigned int
521 shift;
522
523 register long
524 i;
525
526 *code='\0';
527 shift=4*TimeFields;
528 for (i=0; i <= TimeFields; i++)
529 {
530 (void) FormatMagickString(code,MaxTextExtent-strlen(code),"%x",
531 (unsigned int) ((timestamp >> shift) & 0x0fU));
532 code++;
533 if (((i % 2) != 0) && (i < TimeFields))
534 *code++=':';
535 shift-=4;
536 *code='\0';
537 }
538}
539
540static Image *ReadDPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
541{
542 char
543 magick[4],
544 value[MaxTextExtent];
545
546 DPXInfo
547 dpx;
548
549 Image
550 *image;
551
552 long
553 y;
554
555 MagickBooleanType
556 status;
557
558 MagickOffsetType
559 offset;
560
561 QuantumType
562 quantum_type;
563
564 register long
565 i;
566
567 register PixelPacket
568 *q;
569
570 ssize_t
571 count;
572
573 size_t
574 extent;
575
576 unsigned char
577 component_type;
578
579 unsigned long
580 samples_per_pixel;
581
582 /*
583 Open image file.
584 */
585 assert(image_info != (const ImageInfo *) NULL);
586 assert(image_info->signature == MagickSignature);
587 if (image_info->debug != MagickFalse)
588 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
589 image_info->filename);
590 assert(exception != (ExceptionInfo *) NULL);
591 assert(exception->signature == MagickSignature);
592 image=AcquireImage(image_info);
593 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
594 if (status == MagickFalse)
595 {
596 image=DestroyImageList(image);
597 return((Image *) NULL);
598 }
599 /*
600 Read DPX file header.
601 */
602 offset=0;
603 count=ReadBlob(image,4,(unsigned char *) magick);
604 offset+=count;
605 if ((count != 4) || ((LocaleNCompare(magick,"SDPX",4) != 0) &&
606 (LocaleNCompare((char *) magick,"XPDS",4) != 0)))
607 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
608 image->endian=LSBEndian;
609 if (LocaleNCompare(magick,"SDPX",4) == 0)
610 image->endian=MSBEndian;
611 (void) ResetMagickMemory(&dpx,0,sizeof(dpx));
612 dpx.file.image_offset=ReadBlobLong(image);
613 offset+=4;
614 offset+=ReadBlob(image,sizeof(dpx.file.version),(unsigned char *)
615 dpx.file.version);
616 (void) FormatImageProperty(image,"dpx:file.version","%.8s",dpx.file.version);
617 dpx.file.file_size=ReadBlobLong(image);
618 offset+=4;
619 dpx.file.ditto_key=ReadBlobLong(image);
620 offset+=4;
621 if (dpx.file.ditto_key != ~0U)
622 (void) FormatImageProperty(image,"dpx:file.ditto.key","%u",
623 dpx.file.ditto_key);
624 dpx.file.generic_size=ReadBlobLong(image);
625 offset+=4;
626 dpx.file.industry_size=ReadBlobLong(image);
627 offset+=4;
628 dpx.file.user_size=ReadBlobLong(image);
629 offset+=4;
630 offset+=ReadBlob(image,sizeof(dpx.file.filename),(unsigned char *)
631 dpx.file.filename);
632 (void) FormatImageProperty(image,"dpx:file.filename","%.100s",
633 dpx.file.filename);
634 (void) FormatImageProperty(image,"document","%.100s",dpx.file.filename);
635 offset+=ReadBlob(image,sizeof(dpx.file.timestamp),(unsigned char *)
636 dpx.file.timestamp);
637 if (*dpx.file.timestamp != '\0')
638 (void) FormatImageProperty(image,"dpx:file.timestamp","%.24s",
639 dpx.file.timestamp);
640 offset+=ReadBlob(image,sizeof(dpx.file.creator),(unsigned char *)
641 dpx.file.creator);
642 if (*dpx.file.creator != '\0')
643 {
644 (void) FormatImageProperty(image,"dpx:file.creator","%.100s",
645 dpx.file.creator);
646 (void) FormatImageProperty(image,"software","%.100s",dpx.file.creator);
647 }
648 offset+=ReadBlob(image,sizeof(dpx.file.project),(unsigned char *)
649 dpx.file.project);
650 if (*dpx.file.project != '\0')
651 {
652 (void) FormatImageProperty(image,"dpx:file.project","%.200s",
653 dpx.file.project);
654 (void) FormatImageProperty(image,"comment","%.100s",dpx.file.project);
655 }
656 offset+=ReadBlob(image,sizeof(dpx.file.copyright),(unsigned char *)
657 dpx.file.copyright);
658 if (*dpx.file.copyright != '\0')
659 {
660 (void) FormatImageProperty(image,"dpx:file.copyright","%.200s",
661 dpx.file.copyright);
662 (void) FormatImageProperty(image,"copyright","%.100s",
663 dpx.file.copyright);
664 }
665 dpx.file.encrypt_key=ReadBlobLong(image);
666 offset+=4;
667 if (dpx.file.encrypt_key != ~0U)
668 (void) FormatImageProperty(image,"dpx:file.encrypt_key","%u",
669 dpx.file.encrypt_key);
670 offset+=ReadBlob(image,sizeof(dpx.file.reserve),(unsigned char *)
671 dpx.file.reserve);
672 /*
673 Read DPX image header.
674 */
675 dpx.image.orientation=ReadBlobShort(image);
676 offset+=2;
677 if (dpx.image.orientation != (unsigned short) (~0U))
678 (void) FormatImageProperty(image,"dpx:image.orientation","%d",
679 dpx.image.orientation);
680 switch (dpx.image.orientation)
681 {
682 default:
683 case 0: image->orientation=TopLeftOrientation; break;
684 case 1: image->orientation=TopRightOrientation; break;
685 case 2: image->orientation=BottomLeftOrientation; break;
686 case 3: image->orientation=BottomRightOrientation; break;
687 case 4: image->orientation=LeftTopOrientation; break;
688 case 5: image->orientation=RightTopOrientation; break;
689 case 6: image->orientation=LeftBottomOrientation; break;
690 case 7: image->orientation=RightBottomOrientation; break;
691 }
692 dpx.image.number_elements=ReadBlobShort(image);
693 offset+=2;
694 dpx.image.pixels_per_line=ReadBlobLong(image);
695 offset+=4;
696 image->columns=dpx.image.pixels_per_line;
697 dpx.image.lines_per_element=ReadBlobLong(image);
698 offset+=4;
699 image->rows=dpx.image.lines_per_element;
700 for (i=0; i < 8; i++)
701 {
702 dpx.image.image_element[i].data_sign=ReadBlobLong(image);
703 offset+=4;
704 dpx.image.image_element[i].low_data=ReadBlobLong(image);
705 offset+=4;
706 dpx.image.image_element[i].low_quantity=ReadBlobFloat(image);
707 offset+=4;
708 dpx.image.image_element[i].high_data=ReadBlobLong(image);
709 offset+=4;
710 dpx.image.image_element[i].high_quantity=ReadBlobFloat(image);
711 offset+=4;
712 dpx.image.image_element[i].descriptor=(unsigned char) ReadBlobByte(image);
713 offset++;
714 dpx.image.image_element[i].transfer=(unsigned char) ReadBlobByte(image);
715 offset++;
716 dpx.image.image_element[i].colorimetric=(unsigned char) ReadBlobByte(image);
717 offset++;
718 dpx.image.image_element[i].bit_size=(unsigned char) ReadBlobByte(image);
719 offset++;
720 dpx.image.image_element[i].packing=ReadBlobShort(image);
721 offset+=2;
722 dpx.image.image_element[i].encoding=ReadBlobShort(image);
723 offset+=2;
724 dpx.image.image_element[i].data_offset=ReadBlobLong(image);
725 offset+=4;
726 dpx.image.image_element[i].end_of_line_padding=ReadBlobLong(image);
727 offset+=4;
728 dpx.image.image_element[i].end_of_image_padding=ReadBlobLong(image);
729 offset+=4;
730 offset+=ReadBlob(image,sizeof(dpx.image.image_element[i].description),
731 (unsigned char *) dpx.image.image_element[i].description);
732 }
733 SetPrimaryChromaticity((DPXColorimetric)
734 dpx.image.image_element[0].colorimetric,&image->chromaticity);
735 offset+=ReadBlob(image,sizeof(dpx.image.reserve),(unsigned char *)
736 dpx.image.reserve);
737 component_type=dpx.image.image_element[0].descriptor;
738 image->depth=dpx.image.image_element[0].bit_size;
739 if (dpx.file.image_offset >= 1664U)
740 {
741 /*
742 Read DPX orientation header.
743 */
744 dpx.orientation.x_offset=ReadBlobLong(image);
745 offset+=4;
746 if (dpx.orientation.x_offset != ~0U)
747 (void) FormatImageProperty(image,"dpx:orientation.x_offset","%u",
748 dpx.orientation.x_offset);
749 dpx.orientation.y_offset=ReadBlobLong(image);
750 offset+=4;
751 if (dpx.orientation.y_offset != ~0U)
752 (void) FormatImageProperty(image,"dpx:orientation.y_offset","%u",
753 dpx.orientation.y_offset);
754 dpx.orientation.x_center=ReadBlobFloat(image);
755 offset+=4;
756 if (IsFloatDefined(dpx.orientation.x_center) != MagickFalse)
757 (void) FormatImageProperty(image,"dpx:orientation.x_center","%g",
758 dpx.orientation.x_center);
759 dpx.orientation.y_center=ReadBlobFloat(image);
760 offset+=4;
761 if (IsFloatDefined(dpx.orientation.y_center) != MagickFalse)
762 (void) FormatImageProperty(image,"dpx:orientation.y_center","%g",
763 dpx.orientation.y_center);
764 dpx.orientation.x_size=ReadBlobLong(image);
765 offset+=4;
766 if (dpx.orientation.x_size != ~0U)
767 (void) FormatImageProperty(image,"dpx:orientation.x_size","%u",
768 dpx.orientation.x_size);
769 dpx.orientation.y_size=ReadBlobLong(image);
770 offset+=4;
771 if (dpx.orientation.y_size != ~0U)
772 (void) FormatImageProperty(image,"dpx:orientation.y_size","%u",
773 dpx.orientation.y_size);
774 offset+=ReadBlob(image,sizeof(dpx.orientation.filename),(unsigned char *)
775 dpx.orientation.filename);
776 if (*dpx.orientation.filename != '\0')
777 (void) FormatImageProperty(image,"dpx:orientation.filename","%.100s",
778 dpx.orientation.filename);
779 offset+=ReadBlob(image,sizeof(dpx.orientation.timestamp),(unsigned char *)
780 dpx.orientation.timestamp);
781 if (*dpx.orientation.timestamp != '\0')
782 (void) FormatImageProperty(image,"dpx:orientation.timestamp","%.24s",
783 dpx.orientation.timestamp);
784 offset+=ReadBlob(image,sizeof(dpx.orientation.device),(unsigned char *)
785 dpx.orientation.device);
786 if (*dpx.orientation.device != '\0')
787 (void) FormatImageProperty(image,"dpx:orientation.device","%.32s",
788 dpx.orientation.device);
789 offset+=ReadBlob(image,sizeof(dpx.orientation.serial),(unsigned char *)
790 dpx.orientation.serial);
791 if (*dpx.orientation.serial != '\0')
792 (void) FormatImageProperty(image,"dpx:orientation.serial","%.32s",
793 dpx.orientation.serial);
794 for (i=0; i < 4; i++)
795 {
796 dpx.orientation.border[i]=ReadBlobShort(image);
797 offset+=2;
798 }
799 if ((dpx.orientation.border[0] != (unsigned short) (~0U)) &&
800 (dpx.orientation.border[1] != (unsigned short) (~0U)))
801 (void) FormatImageProperty(image,"dpx:orientation.border","%dx%d%+d%+d", dpx.orientation.border[0],dpx.orientation.border[1],
802 dpx.orientation.border[2],dpx.orientation.border[3]);
803 for (i=0; i < 2; i++)
804 {
805 dpx.orientation.aspect_ratio[i]=ReadBlobLong(image);
806 offset+=4;
807 }
808 if ((dpx.orientation.aspect_ratio[0] != ~0U) &&
809 (dpx.orientation.aspect_ratio[1] != ~0U))
810 (void) FormatImageProperty(image,"dpx:orientation.aspect_ratio",
811 "%ux%u",dpx.orientation.aspect_ratio[0],
812 dpx.orientation.aspect_ratio[1]);
813 offset+=ReadBlob(image,sizeof(dpx.orientation.reserve),(unsigned char *)
814 dpx.orientation.reserve);
815 }
816 if (dpx.file.image_offset >= 1920U)
817 {
818 /*
819 Read DPX film header.
820 */
821 offset+=ReadBlob(image,sizeof(dpx.film.id),(unsigned char *) dpx.film.id);
822 if (*dpx.film.type != '\0')
823 (void) FormatImageProperty(image,"dpx:film.id","%.2s",dpx.film.id);
824 offset+=ReadBlob(image,sizeof(dpx.film.type),(unsigned char *)
825 dpx.film.type);
826 if (*dpx.film.type != '\0')
827 (void) FormatImageProperty(image,"dpx:film.type","%.2s",dpx.film.type);
828 offset+=ReadBlob(image,sizeof(dpx.film.offset),(unsigned char *)
829 dpx.film.offset);
830 if (*dpx.film.offset != '\0')
831 (void) FormatImageProperty(image,"dpx:film.offset","%.2s",
832 dpx.film.offset);
833 offset+=ReadBlob(image,sizeof(dpx.film.prefix),(unsigned char *)
834 dpx.film.prefix);
835 if (*dpx.film.prefix != '\0')
836 (void) FormatImageProperty(image,"dpx:film.prefix","%.6s",
837 dpx.film.prefix);
838 offset+=ReadBlob(image,sizeof(dpx.film.count),(unsigned char *)
839 dpx.film.count);
840 if (*dpx.film.count != '\0')
841 (void) FormatImageProperty(image,"dpx:film.count","%.4s",
842 dpx.film.count);
843 offset+=ReadBlob(image,sizeof(dpx.film.format),(unsigned char *)
844 dpx.film.format);
845 if (*dpx.film.format != '\0')
846 (void) FormatImageProperty(image,"dpx:film.format","%.4s",
847 dpx.film.format);
848 dpx.film.frame_position=ReadBlobLong(image);
849 offset+=4;
850 if (dpx.film.frame_position != ~0U)
851 (void) FormatImageProperty(image,"dpx:film.frame_position","%u",
852 dpx.film.frame_position);
853 dpx.film.sequence_extent=ReadBlobLong(image);
854 offset+=4;
855 if (dpx.film.sequence_extent != ~0U)
856 (void) FormatImageProperty(image,"dpx:film.sequence_extent","%u",
857 dpx.film.sequence_extent);
858 dpx.film.held_count=ReadBlobLong(image);
859 offset+=4;
860 if (dpx.film.held_count != ~0U)
861 (void) FormatImageProperty(image,"dpx:film.held_count","%u",
862 dpx.film.held_count);
863 dpx.film.frame_rate=ReadBlobFloat(image);
864 offset+=4;
865 if (IsFloatDefined(dpx.film.frame_rate) != MagickFalse)
866 (void) FormatImageProperty(image,"dpx:film.frame_rate","%g",
867 dpx.film.frame_rate);
868 dpx.film.shutter_angle=ReadBlobFloat(image);
869 offset+=4;
870 if (IsFloatDefined(dpx.film.shutter_angle) != MagickFalse)
871 (void) FormatImageProperty(image,"dpx:film.shutter_angle","%g",
872 dpx.film.shutter_angle);
873 offset+=ReadBlob(image,sizeof(dpx.film.frame_id),(unsigned char *)
874 dpx.film.frame_id);
875 if (*dpx.film.frame_id != '\0')
876 (void) FormatImageProperty(image,"dpx:film.frame_id","%.32s",
877 dpx.film.frame_id);
878 offset+=ReadBlob(image,sizeof(dpx.film.slate),(unsigned char *)
879 dpx.film.slate);
880 if (*dpx.film.slate != '\0')
881 (void) FormatImageProperty(image,"dpx:film.slate","%.100s",
882 dpx.film.slate);
883 offset+=ReadBlob(image,sizeof(dpx.film.reserve),(unsigned char *)
884 dpx.film.reserve);
885 }
886 if (dpx.file.image_offset >= 2048U)
887 {
888 /*
889 Read DPX television header.
890 */
891 dpx.television.time_code=(unsigned int) ReadBlobLong(image);
892 offset+=4;
893 TimeCodeToString(dpx.television.time_code,value);
894 (void) SetImageProperty(image,"dpx:television.time.code",value);
895 dpx.television.user_bits=(unsigned int) ReadBlobLong(image);
896 offset+=4;
897 TimeCodeToString(dpx.television.user_bits,value);
898 (void) SetImageProperty(image,"dpx:television.user.bits",value);
899 dpx.television.interlace=(unsigned char) ReadBlobByte(image);
900 offset++;
901 if (dpx.television.interlace != 0)
902 (void) FormatImageProperty(image,"dpx:television.interlace","%ld",(long)
903 dpx.television.interlace);
904 dpx.television.field_number=(unsigned char) ReadBlobByte(image);
905 offset++;
906 if (dpx.television.field_number != 0)
907 (void) FormatImageProperty(image,"dpx:television.field_number","%ld",
908 (long) dpx.television.field_number);
909 dpx.television.video_signal=(unsigned char) ReadBlobByte(image);
910 offset++;
911 if (dpx.television.video_signal != 0)
912 (void) FormatImageProperty(image,"dpx:television.video_signal","%ld",
913 (long) dpx.television.video_signal);
914 dpx.television.padding=(unsigned char) ReadBlobByte(image);
915 offset++;
916 if (dpx.television.padding != 0)
917 (void) FormatImageProperty(image,"dpx:television.padding","%d",
918 dpx.television.padding);
919 dpx.television.horizontal_sample_rate=ReadBlobFloat(image);
920 offset+=4;
921 if (IsFloatDefined(dpx.television.horizontal_sample_rate) != MagickFalse)
922 (void) FormatImageProperty(image,
923 "dpx:television.horizontal_sample_rate","%g",
924 dpx.television.horizontal_sample_rate);
925 dpx.television.vertical_sample_rate=ReadBlobFloat(image);
926 offset+=4;
927 if (IsFloatDefined(dpx.television.vertical_sample_rate) != MagickFalse)
928 (void) FormatImageProperty(image,"dpx:television.vertical_sample_rate",
929 "%g",dpx.television.vertical_sample_rate);
930 dpx.television.frame_rate=ReadBlobFloat(image);
931 offset+=4;
932 if (IsFloatDefined(dpx.television.frame_rate) != MagickFalse)
933 (void) FormatImageProperty(image,"dpx:television.frame_rate","%g",
934 dpx.television.frame_rate);
935 dpx.television.time_offset=ReadBlobFloat(image);
936 offset+=4;
937 if (IsFloatDefined(dpx.television.time_offset) != MagickFalse)
938 (void) FormatImageProperty(image,"dpx:television.time_offset","%g",
939 dpx.television.time_offset);
940 dpx.television.gamma=ReadBlobFloat(image);
941 offset+=4;
942 if (IsFloatDefined(dpx.television.gamma) != MagickFalse)
943 (void) FormatImageProperty(image,"dpx:television.gamma","%g",
944 dpx.television.gamma);
945 dpx.television.black_level=ReadBlobFloat(image);
946 offset+=4;
947 if (IsFloatDefined(dpx.television.black_level) != MagickFalse)
948 (void) FormatImageProperty(image,"dpx:television.black_level","%g",
949 dpx.television.black_level);
950 dpx.television.black_gain=ReadBlobFloat(image);
951 offset+=4;
952 if (IsFloatDefined(dpx.television.black_gain) != MagickFalse)
953 (void) FormatImageProperty(image,"dpx:television.black_gain","%g",
954 dpx.television.black_gain);
955 dpx.television.break_point=ReadBlobFloat(image);
956 offset+=4;
957 if (IsFloatDefined(dpx.television.break_point) != MagickFalse)
958 (void) FormatImageProperty(image,"dpx:television.break_point","%g",
959 dpx.television.break_point);
960 dpx.television.white_level=ReadBlobFloat(image);
961 offset+=4;
962 if (IsFloatDefined(dpx.television.white_level) != MagickFalse)
963 (void) FormatImageProperty(image,"dpx:television.white_level","%g",
964 dpx.television.white_level);
965 dpx.television.integration_times=ReadBlobFloat(image);
966 offset+=4;
967 if (IsFloatDefined(dpx.television.integration_times) != MagickFalse)
968 (void) FormatImageProperty(image,"dpx:television.integration_times",
969 "%g",dpx.television.integration_times);
970 offset+=ReadBlob(image,sizeof(dpx.television.reserve),(unsigned char *)
971 dpx.television.reserve);
972 }
973 if (dpx.file.image_offset > 2080U)
974 {
975 /*
976 Read DPX user header.
977 */
978 offset+=ReadBlob(image,sizeof(dpx.user.id),(unsigned char *) dpx.user.id);
979 if (*dpx.user.id != '\0')
980 (void) FormatImageProperty(image,"dpx:user.id","%.32s",dpx.user.id);
981 if ((dpx.file.user_size != ~0U) &&
982 ((size_t) dpx.file.user_size > sizeof(dpx.user.id)))
983 {
984 StringInfo
985 *profile;
986
987 profile=AcquireStringInfo(dpx.file.user_size-sizeof(dpx.user.id));
988 offset+=ReadBlob(image,GetStringInfoLength(profile),
989 GetStringInfoDatum(profile));
990 (void) SetImageProfile(image,"dpx:user.data",profile);
991 profile=DestroyStringInfo(profile);
992 }
993 }
994 for ( ; offset < (long) dpx.file.image_offset; offset++)
995 (void) ReadBlobByte(image);
996 /*
997 Read DPX image header.
998 */
999 if (image_info->ping != MagickFalse)
1000 {
1001 (void) CloseBlob(image);
1002 return(GetFirstImageInList(image));
1003 }
1004 /*
1005 Convert DPX raster image to pixel packets.
1006 */
1007 samples_per_pixel=1;
1008 quantum_type=GrayQuantum;
1009 switch (component_type)
1010 {
1011 case CbYCrY422ComponentType:
1012 {
1013 samples_per_pixel=2;
1014 quantum_type=CbYCrYQuantum;
1015 break;
1016 }
1017 case CbYACrYA4224ComponentType:
1018 case CbYCr444ComponentType:
1019 {
1020 samples_per_pixel=3;
1021 quantum_type=CbYCrQuantum;
1022 break;
1023 }
1024 case RGBComponentType:
1025 {
1026 samples_per_pixel=3;
1027 quantum_type=RGBQuantum;
1028 break;
1029 }
1030 case ABGRComponentType:
1031 case RGBAComponentType:
1032 {
1033 image->matte=MagickTrue;
1034 samples_per_pixel=4;
1035 quantum_type=RGBAQuantum;
1036 break;
1037 }
1038 default:
1039 break;
1040 }
1041 switch (component_type)
1042 {
1043 case CbYCrY422ComponentType:
1044 case CbYACrYA4224ComponentType:
1045 case CbYCr444ComponentType:
1046 {
1047 image->colorspace=Rec709YCbCrColorspace;
1048 break;
1049 }
1050 case LumaComponentType:
1051 {
1052 image->colorspace=RGBColorspace;
1053 break;
1054 }
1055 default:
1056 {
1057 image->colorspace=RGBColorspace;
1058 if (dpx.image.image_element[0].transfer == LogarithmicColorimetric)
1059 image->colorspace=LogColorspace;
1060 if (dpx.image.image_element[0].transfer == PrintingDensityColorimetric)
1061 image->colorspace=LogColorspace;
1062 break;
1063 }
1064 }
1065 extent=GetBytesPerRow(image->columns,samples_per_pixel,image->depth,
1066 dpx.image.image_element[0].packing == 0 ? MagickFalse : MagickTrue);
1067 if ((quantum_type == GrayQuantum) &&
1068 (dpx.image.image_element[0].packing != 0) && (image->depth == 10) &&
1069 (image->endian == MSBEndian))
1070 {
1071 QuantumAny
1072 range;
1073
1074 QuantumInfo
1075 *quantum_info;
1076
1077 register long
1078 x;
1079
1080 unsigned char
1081 *pixels;
1082
1083 unsigned long
1084 pixel;
1085
1086 quantum_info=AcquireQuantumInfo(image_info,image);
1087 if (quantum_info == (QuantumInfo *) NULL)
1088 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
1089 SetQuantumQuantum(quantum_info,32);
1090 SetQuantumPack(quantum_info,dpx.image.image_element[0].packing == 0 ?
1091 MagickTrue : MagickFalse);
1092 pixels=GetQuantumPixels(quantum_info);
1093 pixel=0U;
1094 i=0;
1095 range=GetQuantumRange(image->depth);
1096 for (y=0; y < (long) image->rows; y++)
1097 {
1098 q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
1099 if (q == (PixelPacket *) NULL)
1100 break;
1101 for (x=0; x < (long) image->columns; x++)
1102 {
1103 switch (i++ % 3)
1104 {
1105 case 0:
1106 {
1107 pixel=ReadBlobMSBLong(image);
1108 q->red=ScaleAnyToQuantum((pixel >> 0) & 0x3ff,range);
1109 break;
1110 }
1111 case 1:
1112 {
1113 q->red=ScaleAnyToQuantum((pixel >> 10) & 0x3ff,range);
1114 break;
1115 }
1116 case 2:
1117 {
1118 q->red=ScaleAnyToQuantum((pixel >> 20) & 0x3ff,range);
1119 break;
1120 }
1121 }
1122 q->green=q->red;
1123 q->blue=q->red;
1124 q++;
1125 }
1126 if (SyncAuthenticPixels(image,exception) == MagickFalse)
1127 break;
1128 status=SetImageProgress(image,LoadImageTag,y,image->rows);
1129 if (status == MagickFalse)
1130 break;
1131 }
1132 quantum_info=DestroyQuantumInfo(quantum_info);
1133 }
1134 else
1135 {
1136 long
1137 row;
1138
1139 QuantumInfo
1140 *quantum_info;
1141
1142 CacheView
1143 *image_view;
1144
1145 /*
1146 DPX any-bit pixel format.
1147 */
1148 status=MagickTrue;
1149 row=0;
1150 quantum_info=AcquireQuantumInfo(image_info,image);
1151 if (quantum_info == (QuantumInfo *) NULL)
1152 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
1153 SetQuantumQuantum(quantum_info,32);
1154 SetQuantumPack(quantum_info,dpx.image.image_element[0].packing == 0 ?
1155 MagickTrue : MagickFalse);
1156 image_view=AcquireCacheView(image);
1157#if defined(MAGICKCORE_OPENMP_SUPPORT) && (_OPENMP >= 200805)
1158 #pragma omp parallel for schedule(dynamic,1) shared(row,status,quantum_type)
1159#endif
1160 for (y=0; y < (long) image->rows; y++)
1161 {
1162 long
1163 offset;
1164
1165 MagickBooleanType
1166 sync;
1167
1168 register PixelPacket
1169 *q;
1170
1171 ssize_t
1172 count;
1173
1174 size_t
1175 length;
1176
1177 unsigned char
1178 *pixels;
1179
1180 if (status == MagickFalse)
1181 continue;
1182 pixels=GetQuantumPixels(quantum_info);
1183#if defined(MAGICKCORE_OPENMP_SUPPORT) && (_OPENMP > 200505)
1184 #pragma omp critical (MagickCore_ReadDPXImage)
1185#endif
1186 {
1187 count=ReadBlob(image,extent,pixels);
1188 if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
1189 (image->previous == (Image *) NULL))
1190 {
1191 MagickBooleanType
1192 proceed;
1193
1194 proceed=SetImageProgress(image,LoadImageTag,row,image->rows);
1195 if (proceed == MagickFalse)
1196 status=MagickFalse;
1197 }
1198 offset=row++;
1199 }
1200 if (count != (ssize_t) extent)
1201 status=MagickFalse;
1202 q=QueueCacheViewAuthenticPixels(image_view,0,offset,image->columns,1,
1203 exception);
1204 if (q == (PixelPacket *) NULL)
1205 {
1206 status=MagickFalse;
1207 continue;
1208 }
1209 length=ImportQuantumPixels(image,image_view,quantum_info,quantum_type,
1210 pixels,exception);
1211 sync=SyncCacheViewAuthenticPixels(image_view,exception);
1212 if (sync == MagickFalse)
1213 status=MagickFalse;
1214 }
1215 image_view=DestroyCacheView(image_view);
1216 quantum_info=DestroyQuantumInfo(quantum_info);
1217 if (status == MagickFalse)
1218 ThrowReaderException(CorruptImageError,"UnableToReadImageData");
1219 }
1220 SetQuantumImageType(image,quantum_type);
1221 if (EOFBlob(image) != MagickFalse)
1222 ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
1223 image->filename);
1224 (void) CloseBlob(image);
1225 return(GetFirstImageInList(image));
1226}
1227
1228/*
1229%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1230% %
1231% %
1232% %
1233% R e g i s t e r D P X I m a g e %
1234% %
1235% %
1236% %
1237%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1238%
1239% RegisterDPXImage() adds properties for the DPX image format to
1240% the list of supported formats. The properties include the image format
1241% tag, a method to read and/or write the format, whether the format
1242% supports the saving of more than one frame to the same file or blob,
1243% whether the format supports native in-memory I/O, and a brief
1244% description of the format.
1245%
1246% The format of the RegisterDPXImage method is:
1247%
1248% unsigned long RegisterDPXImage(void)
1249%
1250*/
1251ModuleExport unsigned long RegisterDPXImage(void)
1252{
1253 MagickInfo
1254 *entry;
1255
1256 static const char
1257 *DPXNote =
1258 {
1259 "Digital Moving Picture Exchange Bitmap, Version 2.0.\n"
1260 "See SMPTE 268M-2003 specification at http://www.smtpe.org\n"
1261 };
1262
1263 entry=SetMagickInfo("DPX");
1264 entry->decoder=(DecodeImageHandler *) ReadDPXImage;
1265 entry->encoder=(EncodeImageHandler *) WriteDPXImage;
1266 entry->magick=(IsImageFormatHandler *) IsDPX;
1267 entry->adjoin=MagickFalse;
1268 entry->description=ConstantString("SMPTE 268M-2003 (DPX 2.0)");
1269 entry->note=ConstantString(DPXNote);
1270 entry->module=ConstantString("DPX");
1271 (void) RegisterMagickInfo(entry);
1272 return(MagickImageCoderSignature);
1273}
1274
1275/*
1276%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1277% %
1278% %
1279% %
1280% U n r e g i s t e r D P X I m a g e %
1281% %
1282% %
1283% %
1284%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1285%
1286% UnregisterDPXImage() removes format registrations made by the
1287% DPX module from the list of supported formats.
1288%
1289% The format of the UnregisterDPXImage method is:
1290%
1291% UnregisterDPXImage(void)
1292%
1293*/
1294ModuleExport void UnregisterDPXImage(void)
1295{
1296 (void) UnregisterMagickInfo("DPX");
1297}
1298
1299/*
1300%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1301% %
1302% %
1303% %
1304% W r i t e D P X I m a g e %
1305% %
1306% %
1307% %
1308%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1309%
1310% WriteDPXImage() writes an image in DPX encoded image format.
1311%
1312% The format of the WriteDPXImage method is:
1313%
1314% MagickBooleanType WriteDPXImage(const ImageInfo *image_info,Image *image)
1315%
1316% A description of each parameter follows.
1317%
1318% o image_info: the image info.
1319%
1320% o image: The image.
1321%
1322*/
1323
1324static inline const char *GetDPXProperty(const ImageInfo *image_info,
1325 const Image *image,const char *property)
1326{
1327 const char
1328 *value;
1329
1330 value=GetImageOption(image_info,property);
1331 if (value != (const char *) NULL)
1332 return(value);
1333 return(GetImageProperty(image,property));
1334}
1335
1336static unsigned int StringToTimeCode(const char *key)
1337{
1338 char
1339 buffer[2];
1340
1341 register long
1342 i;
1343
1344 unsigned int
1345 shift,
1346 value;
1347
1348 value=0;
1349 shift=28;
1350 buffer[1]='\0';
1351 for (i=0; (*key != 0) && (i < 11); i++)
1352 {
1353 if (isxdigit((int) ((unsigned char) *key)) == 0)
1354 {
1355 key++;
1356 continue;
1357 }
1358 buffer[0]=(*key++);
1359 value|=(unsigned int) ((strtol(buffer,(char **) NULL,16)) << shift);
1360 shift-=4;
1361 }
1362 return(value);
1363}
1364
1365static MagickBooleanType WriteDPXImage(const ImageInfo *image_info,Image *image)
1366{
1367 const char
1368 *value;
1369
1370 const StringInfo
1371 *profile;
1372
1373 DPXInfo
1374 dpx;
1375
1376 long
1377 horizontal_factor,
1378 vertical_factor,
1379 y;
1380
1381 MagickBooleanType
1382 status;
1383
1384 MagickOffsetType
1385 offset;
1386
1387 MagickStatusType
1388 flags;
1389
1390 GeometryInfo
1391 geometry_info;
1392
1393 QuantumInfo
1394 *quantum_info;
1395
1396 QuantumType
1397 quantum_type;
1398
1399 register const PixelPacket
1400 *p;
1401
1402 register long
1403 i;
1404
1405 size_t
1406 extent;
1407
1408 ssize_t
1409 count;
1410
1411 time_t
1412 seconds;
1413
1414 unsigned char
1415 *pixels;
1416
1417 /*
1418 Open output image file.
1419 */
1420 assert(image_info != (const ImageInfo *) NULL);
1421 assert(image_info->signature == MagickSignature);
1422 assert(image != (Image *) NULL);
1423 assert(image->signature == MagickSignature);
1424 if (image->debug != MagickFalse)
1425 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1426 horizontal_factor=4;
1427 vertical_factor=4;
1428 if (image_info->sampling_factor != (char *) NULL)
1429 {
1430 GeometryInfo
1431 geometry_info;
1432
1433 MagickStatusType
1434 flags;
1435
1436 flags=ParseGeometry(image_info->sampling_factor,&geometry_info);
1437 horizontal_factor=(long) geometry_info.rho;
1438 vertical_factor=(long) geometry_info.sigma;
1439 if ((flags & SigmaValue) == 0)
1440 vertical_factor=horizontal_factor;
1441 if ((horizontal_factor != 1) && (horizontal_factor != 2) &&
1442 (horizontal_factor != 4) && (vertical_factor != 1) &&
1443 (vertical_factor != 2) && (vertical_factor != 4))
1444 ThrowWriterException(CorruptImageError,"UnexpectedSamplingFactor");
1445 }
1446 if ((image->colorspace == YCbCrColorspace) &&
1447 ((horizontal_factor == 2) || (vertical_factor == 2)))
1448 if ((image->columns % 2) != 0)
1449 image->columns++;
1450 status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
1451 if (status == MagickFalse)
1452 return(status);
1453 /*
1454 Write file header.
1455 */
1456 (void) ResetMagickMemory(&dpx,0,sizeof(dpx));
1457 offset=0;
1458 dpx.file.magic=0x53445058U;
1459 offset+=WriteBlobLong(image,dpx.file.magic);
1460 dpx.file.image_offset=0x2000U;
1461 profile=GetImageProfile(image,"dpx:user.data");
1462 if (profile != (StringInfo *) NULL)
1463 {
1464 dpx.file.image_offset+=(unsigned int) GetStringInfoLength(profile);
1465 dpx.file.image_offset=(((dpx.file.image_offset+0x2000-1)/0x2000)*0x2000);
1466 }
1467 offset+=WriteBlobLong(image,dpx.file.image_offset);
1468 (void) strncpy(dpx.file.version,"V2.0",sizeof(dpx.file.version));
1469 offset+=WriteBlob(image,8,(unsigned char *) &dpx.file.version);
1470 dpx.file.file_size=(unsigned int) (4U*image->columns*image->rows+
1471 dpx.file.image_offset);
1472 offset+=WriteBlobLong(image,dpx.file.file_size);
1473 dpx.file.ditto_key=1U; /* new frame */
1474 offset+=WriteBlobLong(image,dpx.file.ditto_key);
1475 dpx.file.generic_size=0x00000680U;
1476 offset+=WriteBlobLong(image,dpx.file.generic_size);
1477 dpx.file.industry_size=0x00000180U;
1478 offset+=WriteBlobLong(image,dpx.file.industry_size);
1479 dpx.file.user_size=0;
1480 if (profile != (StringInfo *) NULL)
1481 {
1482 dpx.file.user_size+=(unsigned int) GetStringInfoLength(profile);
1483 dpx.file.user_size=(((dpx.file.user_size+0x2000-1)/0x2000)*0x2000);
1484 }
1485 offset+=WriteBlobLong(image,dpx.file.user_size);
1486 value=GetDPXProperty(image_info,image,"dpx:file.filename");
1487 if (value != (const char *) NULL)
1488 (void) strncpy(dpx.file.filename,value,sizeof(dpx.file.filename));
1489 offset+=WriteBlob(image,sizeof(dpx.file.filename),(unsigned char *)
1490 dpx.file.filename);
1491 seconds=time((time_t *) NULL);
1492 (void) FormatMagickTime(seconds,sizeof(dpx.file.timestamp),
1493 dpx.file.timestamp);
1494 offset+=WriteBlob(image,sizeof(dpx.file.timestamp),(unsigned char *)
1495 dpx.file.timestamp);
1496 (void) strncpy(dpx.file.creator,GetMagickVersion((unsigned long *) NULL),
1497 sizeof(dpx.file.creator));
1498 value=GetDPXProperty(image_info,image,"dpx:file.creator");
1499 if (value != (const char *) NULL)
1500 (void) strncpy(dpx.file.creator,value,sizeof(dpx.file.creator));
1501 offset+=WriteBlob(image,sizeof(dpx.file.creator),(unsigned char *)
1502 dpx.file.creator);
1503 value=GetDPXProperty(image_info,image,"dpx:file.project");
1504 if (value != (const char *) NULL)
1505 (void) strncpy(dpx.file.project,value,sizeof(dpx.file.project));
1506 offset+=WriteBlob(image,sizeof(dpx.file.project),(unsigned char *)
1507 dpx.file.project);
1508 value=GetDPXProperty(image_info,image,"dpx:file.copyright");
1509 if (value != (const char *) NULL)
1510 (void) strncpy(dpx.file.copyright,value,
1511 sizeof(dpx.file.copyright));
1512 offset+=WriteBlob(image,sizeof(dpx.file.copyright),(unsigned char *)
1513 dpx.file.copyright);
1514 dpx.file.encrypt_key=(~0U);
1515 offset+=WriteBlobLong(image,dpx.file.encrypt_key);
1516 offset+=WriteBlob(image,sizeof(dpx.file.reserve),(unsigned char *)
1517 dpx.file.reserve);
1518 /*
1519 Write image header.
1520 */
1521 dpx.image.orientation=0x00; /* left-to-right; top-to-bottom */
1522 offset+=WriteBlobShort(image,dpx.image.orientation);
1523 dpx.image.number_elements=1;
1524 offset+=WriteBlobShort(image,dpx.image.number_elements);
1525 if ((image->columns != (unsigned int) image->columns) ||
1526 (image->rows != (unsigned int) image->rows))
1527 ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1528 offset+=WriteBlobLong(image,(unsigned int) image->columns);
1529 offset+=WriteBlobLong(image,(unsigned int) image->rows);
1530 for (i=0; i < 8; i++)
1531 {
1532 dpx.image.image_element[i].data_sign=0U;
1533 offset+=WriteBlobLong(image,dpx.image.image_element[i].data_sign);
1534 dpx.image.image_element[i].low_data=0U;
1535 offset+=WriteBlobLong(image,dpx.image.image_element[i].low_data);
1536 dpx.image.image_element[i].low_quantity=0.0f;
1537 offset+=WriteBlobFloat(image,dpx.image.image_element[i].low_quantity);
1538 dpx.image.image_element[i].high_data=0U;
1539 offset+=WriteBlobLong(image,dpx.image.image_element[i].high_data);
1540 dpx.image.image_element[i].high_quantity=0.0f;
1541 offset+=WriteBlobFloat(image,dpx.image.image_element[i].high_quantity);
1542 dpx.image.image_element[i].descriptor=0;
1543 if (i == 0)
1544 switch (image->colorspace)
1545 {
1546 case Rec601YCbCrColorspace:
1547 case Rec709YCbCrColorspace:
1548 case YCbCrColorspace:
1549 {
1550 dpx.image.image_element[i].descriptor=CbYCr444ComponentType;
1551 if (image->matte != MagickFalse)
1552 dpx.image.image_element[i].descriptor=CbYCrA4444ComponentType;
1553 break;
1554 }
1555 default:
1556 {
1557 dpx.image.image_element[i].descriptor=RGBComponentType;
1558 if (image->matte != MagickFalse)
1559 dpx.image.image_element[i].descriptor=RGBAComponentType;
1560 break;
1561 }
1562 }
1563 offset+=WriteBlobByte(image,dpx.image.image_element[i].descriptor);
1564 dpx.image.image_element[i].transfer=0;
1565 if (image->colorspace == LogColorspace)
1566 dpx.image.image_element[0].transfer=PrintingDensityColorimetric;
1567 offset+=WriteBlobByte(image,dpx.image.image_element[i].transfer);
1568 dpx.image.image_element[i].colorimetric=0;
1569 offset+=WriteBlobByte(image,dpx.image.image_element[i].colorimetric);
1570 dpx.image.image_element[i].bit_size=0;
1571 if (i == 0)
1572 dpx.image.image_element[i].bit_size=(unsigned char) image->depth;
1573 offset+=WriteBlobByte(image,dpx.image.image_element[i].bit_size);
1574 dpx.image.image_element[i].packing=0;
1575 if ((image->depth == 10) || (image->depth == 12))
1576 dpx.image.image_element[i].packing=1;
1577 offset+=WriteBlobShort(image,dpx.image.image_element[i].packing);
1578 dpx.image.image_element[i].encoding=0;
1579 offset+=WriteBlobShort(image,dpx.image.image_element[i].encoding);
1580 dpx.image.image_element[i].data_offset=0U;
1581 if (i == 0)
1582 dpx.image.image_element[i].data_offset=dpx.file.image_offset;
1583 offset+=WriteBlobLong(image,dpx.image.image_element[i].data_offset);
1584 dpx.image.image_element[i].end_of_line_padding=0U;
1585 offset+=WriteBlobLong(image,dpx.image.image_element[i].end_of_line_padding);
1586 offset+=WriteBlobLong(image,
1587 dpx.image.image_element[i].end_of_image_padding);
1588 offset+=WriteBlob(image,sizeof(dpx.image.image_element[i].description),
1589 (unsigned char *) dpx.image.image_element[i].description);
1590 }
1591 offset+=WriteBlob(image,sizeof(dpx.image.reserve),(unsigned char *)
1592 dpx.image.reserve);
1593 /*
1594 Write orientation header.
1595 */
1596 if ((image->rows != image->magick_rows) ||
1597 (image->columns != image->magick_columns))
1598 {
1599 /*
1600 These properties are not valid if image size changed.
1601 */
1602 (void) DeleteImageProperty(image,"dpx:orientation.x_offset");
1603 (void) DeleteImageProperty(image,"dpx:orientation.y_offset");
1604 (void) DeleteImageProperty(image,"dpx:orientation.x_center");
1605 (void) DeleteImageProperty(image,"dpx:orientation.y_center");
1606 (void) DeleteImageProperty(image,"dpx:orientation.x_size");
1607 (void) DeleteImageProperty(image,"dpx:orientation.y_size");
1608 }
1609 dpx.orientation.x_offset=0U;
1610 value=GetDPXProperty(image_info,image,"dpx:orientation.x_offset");
1611 if (value != (const char *) NULL)
1612 dpx.orientation.x_offset=(unsigned int) atoi(value);
1613 offset+=WriteBlobLong(image,dpx.orientation.x_offset);
1614 dpx.orientation.y_offset=0U;
1615 value=GetDPXProperty(image_info,image,"dpx:orientation.y_offset");
1616 if (value != (const char *) NULL)
1617 dpx.orientation.y_offset=(unsigned int) atoi(value);
1618 offset+=WriteBlobLong(image,dpx.orientation.y_offset);
1619 dpx.orientation.x_center=0.0f;
1620 value=GetDPXProperty(image_info,image,"dpx:orientation.x_center");
1621 if (value != (const char *) NULL)
1622 dpx.orientation.x_center=atof(value);
1623 offset+=WriteBlobFloat(image,dpx.orientation.x_center);
1624 dpx.orientation.y_center=0.0f;
1625 value=GetDPXProperty(image_info,image,"dpx:orientation.y_center");
1626 if (value != (const char *) NULL)
1627 dpx.orientation.y_center=atof(value);
1628 offset+=WriteBlobFloat(image,dpx.orientation.y_center);
1629 dpx.orientation.x_size=0U;
1630 value=GetDPXProperty(image_info,image,"dpx:orientation.x_size");
1631 if (value != (const char *) NULL)
1632 dpx.orientation.x_size=(unsigned int) atoi(value);
1633 offset+=WriteBlobLong(image,dpx.orientation.x_size);
1634 dpx.orientation.y_size=0U;
1635 value=GetDPXProperty(image_info,image,"dpx:orientation.y_size");
1636 if (value != (const char *) NULL)
1637 dpx.orientation.y_size=(unsigned int) atoi(value);
1638 offset+=WriteBlobLong(image,dpx.orientation.y_size);
1639 value=GetDPXProperty(image_info,image,"dpx:orientation.filename");
1640 if (value != (const char *) NULL)
1641 (void) strncpy(dpx.orientation.filename,value,
1642 sizeof(dpx.orientation.filename));
1643 offset+=WriteBlob(image,sizeof(dpx.orientation.filename),(unsigned char *)
1644 dpx.orientation.filename);
1645 offset+=WriteBlob(image,sizeof(dpx.orientation.timestamp),(unsigned char *)
1646 dpx.orientation.timestamp);
1647 value=GetDPXProperty(image_info,image,"dpx:orientation.device");
1648 if (value != (const char *) NULL)
1649 (void) strncpy(dpx.orientation.device,value,
1650 sizeof(dpx.orientation.device));
1651 offset+=WriteBlob(image,sizeof(dpx.orientation.device),(unsigned char *)
1652 dpx.orientation.device);
1653 offset+=WriteBlob(image,sizeof(dpx.orientation.serial),(unsigned char *)
1654 dpx.orientation.serial);
1655 for (i=0; i < 4; i++)
1656 dpx.orientation.border[i]=0;
1657 value=GetDPXProperty(image_info,image,"dpx:orientation.border");
1658 if (value != (const char *) NULL)
1659 {
1660 flags=ParseGeometry(value,&geometry_info);
1661 if ((flags & SigmaValue) == 0)
1662 geometry_info.sigma=geometry_info.rho;
1663 dpx.orientation.border[0]=(unsigned short) (geometry_info.rho+0.5);
1664 dpx.orientation.border[1]=(unsigned short) (geometry_info.sigma+0.5);
1665 dpx.orientation.border[2]=(unsigned short) (geometry_info.xi+0.5);
1666 dpx.orientation.border[3]=(unsigned short) (geometry_info.psi+0.5);
1667 }
1668 for (i=0; i < 4; i++)
1669 offset+=WriteBlobShort(image,dpx.orientation.border[i]);
1670 for (i=0; i < 2; i++)
1671 dpx.orientation.aspect_ratio[i]=0U;
1672 value=GetDPXProperty(image_info,image,"dpx:orientation.aspect_ratio");
1673 if (value != (const char *) NULL)
1674 {
1675 flags=ParseGeometry(value,&geometry_info);
1676 if ((flags & SigmaValue) == 0)
1677 geometry_info.sigma=geometry_info.rho;
1678 dpx.orientation.aspect_ratio[0]=(unsigned int) (geometry_info.rho+0.5);
1679 dpx.orientation.aspect_ratio[1]=(unsigned int) (geometry_info.sigma+0.5);
1680 }
1681 for (i=0; i < 2; i++)
1682 offset+=WriteBlobLong(image,dpx.orientation.aspect_ratio[i]);
1683 offset+=WriteBlob(image,sizeof(dpx.orientation.reserve),(unsigned char *)
1684 dpx.orientation.reserve);
1685 /*
1686 Write film header.
1687 */
1688 *dpx.film.id='\0';
1689 value=GetDPXProperty(image_info,image,"dpx:film.id");
1690 if (value != (const char *) NULL)
1691 (void) strncpy(dpx.film.id,value,sizeof(dpx.film.id));
1692 offset+=WriteBlob(image,sizeof(dpx.film.id),(unsigned char *) dpx.film.id);
1693 *dpx.film.type='\0';
1694 value=GetDPXProperty(image_info,image,"dpx:film.type");
1695 if (value != (const char *) NULL)
1696 (void) strncpy(dpx.film.type,value,sizeof(dpx.film.type));
1697 offset+=WriteBlob(image,sizeof(dpx.film.type),(unsigned char *)
1698 dpx.film.type);
1699 *dpx.film.offset='\0';
1700 value=GetDPXProperty(image_info,image,"dpx:film.offset");
1701 if (value != (const char *) NULL)
1702 (void) strncpy(dpx.film.offset,value,sizeof(dpx.film.offset));
1703 offset+=WriteBlob(image,sizeof(dpx.film.offset),(unsigned char *)
1704 dpx.film.offset);
1705 *dpx.film.prefix='\0';
1706 value=GetDPXProperty(image_info,image,"dpx:film.prefix");
1707 if (value != (const char *) NULL)
1708 (void) strncpy(dpx.film.prefix,value,sizeof(dpx.film.prefix));
1709 offset+=WriteBlob(image,sizeof(dpx.film.prefix),(unsigned char *)
1710 dpx.film.prefix);
1711 *dpx.film.count='\0';
1712 value=GetDPXProperty(image_info,image,"dpx:film.count");
1713 if (value != (const char *) NULL)
1714 (void) strncpy(dpx.film.count,value,sizeof(dpx.film.count));
1715 offset+=WriteBlob(image,sizeof(dpx.film.count),(unsigned char *)
1716 dpx.film.count);
1717 *dpx.film.format='\0';
1718 value=GetDPXProperty(image_info,image,"dpx:film.format");
1719 if (value != (const char *) NULL)
1720 (void) strncpy(dpx.film.format,value,sizeof(dpx.film.format));
1721 offset+=WriteBlob(image,sizeof(dpx.film.format),(unsigned char *)
1722 dpx.film.format);
1723 dpx.film.frame_position=0U;
1724 value=GetDPXProperty(image_info,image,"dpx:film.frame_position");
1725 if (value != (const char *) NULL)
1726 dpx.film.frame_position=(unsigned int) atoi(value);
1727 offset+=WriteBlobLong(image,dpx.film.frame_position);
1728 dpx.film.sequence_extent=0U;
1729 value=GetDPXProperty(image_info,image,"dpx:film.sequence_extent");
1730 if (value != (const char *) NULL)
1731 dpx.film.sequence_extent=(unsigned int) atoi(value);
1732 offset+=WriteBlobLong(image,dpx.film.sequence_extent);
1733 dpx.film.held_count=0U;
1734 value=GetDPXProperty(image_info,image,"dpx:film.held_count");
1735 if (value != (const char *) NULL)
1736 dpx.film.held_count=(unsigned int) atoi(value);
1737 offset+=WriteBlobLong(image,dpx.film.held_count);
1738 dpx.film.frame_rate=0.0f;
1739 value=GetDPXProperty(image_info,image,"dpx:film.frame_rate");
1740 if (value != (const char *) NULL)
1741 dpx.film.frame_rate=atof(value);
1742 offset+=WriteBlobFloat(image,dpx.film.frame_rate);
1743 dpx.film.shutter_angle=0.0f;
1744 value=GetDPXProperty(image_info,image,"dpx:film.shutter_angle");
1745 if (value != (const char *) NULL)
1746 dpx.film.shutter_angle=atof(value);
1747 offset+=WriteBlobFloat(image,dpx.film.shutter_angle);
1748 *dpx.film.frame_id='\0';
1749 value=GetDPXProperty(image_info,image,"dpx:film.frame_id");
1750 if (value != (const char *) NULL)
1751 (void) strncpy(dpx.film.frame_id,value,sizeof(dpx.film.frame_id));
1752 offset+=WriteBlob(image,sizeof(dpx.film.frame_id),(unsigned char *)
1753 dpx.film.frame_id);
1754 value=GetDPXProperty(image_info,image,"dpx:film.slate");
1755 if (value != (const char *) NULL)
1756 (void) strncpy(dpx.film.slate,value,sizeof(dpx.film.slate));
1757 offset+=WriteBlob(image,sizeof(dpx.film.slate),(unsigned char *)
1758 dpx.film.slate);
1759 offset+=WriteBlob(image,sizeof(dpx.film.reserve),(unsigned char *)
1760 dpx.film.reserve);
1761 /*
1762 Write television header.
1763 */
1764 value=GetDPXProperty(image_info,image,"dpx:television.time.code");
1765 if (value != (const char *) NULL)
1766 dpx.television.time_code=StringToTimeCode(value);
1767 offset+=WriteBlobLong(image,dpx.television.time_code);
1768 value=GetDPXProperty(image_info,image,"dpx:television.user.bits");
1769 if (value != (const char *) NULL)
1770 dpx.television.user_bits=StringToTimeCode(value);
1771 offset+=WriteBlobLong(image,dpx.television.user_bits);
1772 value=GetDPXProperty(image_info,image,"dpx:television.interlace");
1773 if (value != (const char *) NULL)
1774 dpx.television.interlace=(unsigned char) atoi(value);
1775 offset+=WriteBlobByte(image,dpx.television.interlace);
1776 value=GetDPXProperty(image_info,image,"dpx:television.field_number");
1777 if (value != (const char *) NULL)
1778 dpx.television.field_number=(unsigned char) atoi(value);
1779 offset+=WriteBlobByte(image,dpx.television.field_number);
1780 dpx.television.video_signal=0;
1781 value=GetDPXProperty(image_info,image,"dpx:television.video_signal");
1782 if (value != (const char *) NULL)
1783 dpx.television.video_signal=(unsigned char) atoi(value);
1784 offset+=WriteBlobByte(image,dpx.television.video_signal);
1785 dpx.television.padding=0;
1786 value=GetDPXProperty(image_info,image,"dpx:television.padding");
1787 if (value != (const char *) NULL)
1788 dpx.television.padding=(unsigned char) atoi(value);
1789 offset+=WriteBlobByte(image,dpx.television.padding);
1790 dpx.television.horizontal_sample_rate=0.0f;
1791 value=GetDPXProperty(image_info,image,
1792 "dpx:television.horizontal_sample_rate");
1793 if (value != (const char *) NULL)
1794 dpx.television.horizontal_sample_rate=atof(value);
1795 offset+=WriteBlobFloat(image,dpx.television.horizontal_sample_rate);
1796 dpx.television.vertical_sample_rate=0.0f;
1797 value=GetDPXProperty(image_info,image,"dpx:television.vertical_sample_rate");
1798 if (value != (const char *) NULL)
1799 dpx.television.vertical_sample_rate=atof(value);
1800 offset+=WriteBlobFloat(image,dpx.television.vertical_sample_rate);
1801 dpx.television.frame_rate=0.0f;
1802 value=GetDPXProperty(image_info,image,"dpx:television.frame_rate");
1803 if (value != (const char *) NULL)
1804 dpx.television.frame_rate=atof(value);
1805 offset+=WriteBlobFloat(image,dpx.television.frame_rate);
1806 dpx.television.time_offset=0.0f;
1807 value=GetDPXProperty(image_info,image,"dpx:television.time_offset");
1808 if (value != (const char *) NULL)
1809 dpx.television.time_offset=atof(value);
1810 offset+=WriteBlobFloat(image,dpx.television.time_offset);
1811 dpx.television.gamma=0.0f;
1812 value=GetDPXProperty(image_info,image,"dpx:television.gamma");
1813 if (value != (const char *) NULL)
1814 dpx.television.gamma=atof(value);
1815 offset+=WriteBlobFloat(image,dpx.television.gamma);
1816 dpx.television.black_level=0.0f;
1817 value=GetDPXProperty(image_info,image,"dpx:television.black_level");
1818 if (value != (const char *) NULL)
1819 dpx.television.black_level=atof(value);
1820 offset+=WriteBlobFloat(image,dpx.television.black_level);
1821 dpx.television.black_gain=0.0f;
1822 value=GetDPXProperty(image_info,image,"dpx:television.black_gain");
1823 if (value != (const char *) NULL)
1824 dpx.television.black_gain=atof(value);
1825 offset+=WriteBlobFloat(image,dpx.television.black_gain);
1826 dpx.television.break_point=0.0f;
1827 value=GetDPXProperty(image_info,image,"dpx:television.break_point");
1828 if (value != (const char *) NULL)
1829 dpx.television.break_point=atof(value);
1830 offset+=WriteBlobFloat(image,dpx.television.break_point);
1831 dpx.television.white_level=0.0f;
1832 value=GetDPXProperty(image_info,image,"dpx:television.white_level");
1833 if (value != (const char *) NULL)
1834 dpx.television.white_level=atof(value);
1835 offset+=WriteBlobFloat(image,dpx.television.white_level);
1836 dpx.television.integration_times=0.0f;
1837 value=GetDPXProperty(image_info,image,"dpx:television.integration_times");
1838 if (value != (const char *) NULL)
1839 dpx.television.integration_times=atof(value);
1840 offset+=WriteBlobFloat(image,dpx.television.integration_times);
1841 offset+=WriteBlob(image,sizeof(dpx.television.reserve),(unsigned char *)
1842 dpx.television.reserve);
1843 /*
1844 Write user header.
1845 */
1846 value=GetDPXProperty(image_info,image,"dpx:user.id");
1847 if (value != (const char *) NULL)
1848 (void) strncpy(dpx.user.id,value,sizeof(dpx.user.id));
1849 offset+=WriteBlob(image,sizeof(dpx.user.id),(unsigned char *) dpx.user.id);
1850 if (profile != (StringInfo *) NULL)
1851 offset+=WriteBlob(image,GetStringInfoLength(profile),
1852 GetStringInfoDatum(profile));
1853 while (offset < (MagickOffsetType) dpx.image.image_element[0].data_offset)
1854 {
1855 count=WriteBlobByte(image,0x00);
1856 if (count != 1)
1857 {
1858 ThrowFileException(&image->exception,FileOpenError,"UnableToWriteFile",
1859 image->filename);
1860 break;
1861 }
1862 offset+=count;
1863 }
1864 /*
1865 Convert pixel packets to DPX raster image.
1866 */
1867 quantum_info=AcquireQuantumInfo(image_info,image);
1868 quantum_info->quantum=32;
1869 quantum_info->pack=dpx.image.image_element[0].packing == 0 ? MagickTrue :
1870 MagickFalse;
1871 quantum_type=RGBQuantum;
1872 if (image->matte != MagickFalse)
1873 quantum_type=RGBAQuantum;
1874 if (image->colorspace == YCbCrColorspace)
1875 {
1876 quantum_type=CbYCrQuantum;
1877 if (image->matte != MagickFalse)
1878 quantum_type=CbYCrAQuantum;
1879 if ((horizontal_factor == 2) || (vertical_factor == 2))
1880 quantum_type=CbYCrYQuantum;
1881 }
1882 extent=GetBytesPerRow(image->columns,image->matte != MagickFalse ? 4UL : 3UL,
1883 image->depth,MagickTrue);
1884 if (0)
1885 {
1886 quantum_type=GrayQuantum;
1887 extent=GetBytesPerRow(image->columns,image->matte != MagickFalse ?
1888 4UL : 3UL,image->depth,MagickTrue);
1889 }
1890 pixels=GetQuantumPixels(quantum_info);
1891 for (y=0; y < (long) image->rows; y++)
1892 {
1893 p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
1894 if (p == (const PixelPacket *) NULL)
1895 break;
1896 (void) ExportQuantumPixels(image,(const CacheView *) NULL,quantum_info,
1897 quantum_type,pixels,&image->exception);
1898 count=WriteBlob(image,extent,pixels);
1899 if (count != (ssize_t) extent)
1900 break;
1901 status=SetImageProgress(image,SaveImageTag,y,image->rows);
1902 if (status == MagickFalse)
1903 break;
1904 }
1905 quantum_info=DestroyQuantumInfo(quantum_info);
1906 (void) CloseBlob(image);
1907 return(status);
1908}