MagickCore 6.9.13
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constitute.c
1/*
2%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3% %
4% %
5% %
6% CCCC OOO N N SSSSS TTTTT IIIII TTTTT U U TTTTT EEEEE %
7% C O O NN N SS T I T U U T E %
8% C O O N N N ESSS T I T U U T EEE %
9% C O O N NN SS T I T U U T E %
10% CCCC OOO N N SSSSS T IIIII T UUU T EEEEE %
11% %
12% %
13% MagickCore Methods to Consitute an Image %
14% %
15% Software Design %
16% Cristy %
17% October 1998 %
18% %
19% %
20% Copyright 1999 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 "magick/studio.h"
43#include "magick/attribute.h"
44#include "magick/blob.h"
45#include "magick/blob-private.h"
46#include "magick/exception.h"
47#include "magick/exception-private.h"
48#include "magick/cache.h"
49#include "magick/client.h"
50#include "magick/coder.h"
51#include "magick/colorspace-private.h"
52#include "magick/constitute.h"
53#include "magick/delegate.h"
54#include "magick/geometry.h"
55#include "magick/identify.h"
56#include "magick/image-private.h"
57#include "magick/list.h"
58#include "magick/magick.h"
59#include "magick/memory_.h"
60#include "magick/monitor.h"
61#include "magick/monitor-private.h"
62#include "magick/option.h"
63#include "magick/pixel.h"
64#include "magick/policy.h"
65#include "magick/profile.h"
66#include "magick/property.h"
67#include "magick/quantum.h"
68#include "magick/resize.h"
69#include "magick/resource_.h"
70#include "magick/semaphore.h"
71#include "magick/statistic.h"
72#include "magick/stream.h"
73#include "magick/string_.h"
74#include "magick/string-private.h"
75#include "magick/timer.h"
76#include "magick/token.h"
77#include "magick/transform.h"
78#include "magick/utility.h"
79␌
80/*
81 Define declarations.
82*/
83#define MaxReadRecursionDepth 100
84␌
85/*
86%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
87% %
88% %
89% %
90% C o n s t i t u t e I m a g e %
91% %
92% %
93% %
94%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
95%
96% ConstituteImage() returns an image from the pixel data you supply.
97% The pixel data must be in scanline order top-to-bottom. The data can be
98% char, short int, int, float, or double. Float and double require the
99% pixels to be normalized [0..1], otherwise [0..QuantumRange]. For example, to
100% create a 640x480 image from unsigned red-green-blue character data, use:
101%
102% image = ConstituteImage(640,480,"RGB",CharPixel,pixels,&exception);
103%
104% The format of the ConstituteImage method is:
105%
106% Image *ConstituteImage(const size_t columns,const size_t rows,
107% const char *map,const StorageType storage,const void *pixels,
108% ExceptionInfo *exception)
109%
110% A description of each parameter follows:
111%
112% o columns: width in pixels of the image.
113%
114% o rows: height in pixels of the image.
115%
116% o map: This string reflects the expected ordering of the pixel array.
117% It can be any combination or order of R = red, G = green, B = blue,
118% A = alpha (0 is transparent), O = opacity (0 is opaque), C = cyan,
119% Y = yellow, M = magenta, K = black, I = intensity (for grayscale),
120% P = pad.
121%
122% o storage: Define the data type of the pixels. Float and double types are
123% expected to be normalized [0..1] otherwise [0..QuantumRange]. Choose
124% from these types: CharPixel, DoublePixel, FloatPixel, IntegerPixel,
125% LongPixel, QuantumPixel, or ShortPixel.
126%
127% o pixels: This array of values contain the pixel components as defined by
128% map and type. You must preallocate this array where the expected
129% length varies depending on the values of width, height, map, and type.
130%
131% o exception: return any errors or warnings in this structure.
132%
133*/
134MagickExport Image *ConstituteImage(const size_t columns,
135 const size_t rows,const char *map,const StorageType storage,
136 const void *pixels,ExceptionInfo *exception)
137{
138 Image
139 *image;
140
141 MagickBooleanType
142 status;
143
144 ssize_t
145 i;
146
147 size_t
148 length;
149
150 /*
151 Allocate image structure.
152 */
153 assert(map != (const char *) NULL);
154 assert(pixels != (void *) NULL);
155 assert(exception != (ExceptionInfo *) NULL);
156 assert(exception->signature == MagickCoreSignature);
157 if (IsEventLogging() != MagickFalse)
158 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",map);
159 image=AcquireImage((ImageInfo *) NULL);
160 if (image == (Image *) NULL)
161 return((Image *) NULL);
162 switch (storage)
163 {
164 case CharPixel: image->depth=8*sizeof(unsigned char); break;
165 case DoublePixel: image->depth=8*sizeof(double); break;
166 case FloatPixel: image->depth=8*sizeof(float); break;
167 case LongPixel: image->depth=8*sizeof(unsigned long); break;
168 case ShortPixel: image->depth=8*sizeof(unsigned short); break;
169 default: break;
170 }
171 length=strlen(map);
172 for (i=0; i < (ssize_t) length; i++)
173 {
174 switch (map[i])
175 {
176 case 'a':
177 case 'A':
178 case 'O':
179 case 'o':
180 {
181 image->matte=MagickTrue;
182 break;
183 }
184 case 'C':
185 case 'c':
186 case 'm':
187 case 'M':
188 case 'Y':
189 case 'y':
190 case 'K':
191 case 'k':
192 {
193 image->colorspace=CMYKColorspace;
194 break;
195 }
196 case 'I':
197 case 'i':
198 {
199 image->colorspace=GRAYColorspace;
200 break;
201 }
202 default:
203 {
204 if (length == 1)
205 image->colorspace=GRAYColorspace;
206 break;
207 }
208 }
209 }
210 status=SetImageExtent(image,columns,rows);
211 if (status == MagickFalse)
212 {
213 InheritException(exception,&image->exception);
214 image=DestroyImage(image);
215 }
216 status=ResetImagePixels(image,exception);
217 if (status == MagickFalse)
218 {
219 InheritException(exception,&image->exception);
220 image=DestroyImage(image);
221 }
222 status=ImportImagePixels(image,0,0,columns,rows,map,storage,pixels);
223 if (status == MagickFalse)
224 {
225 InheritException(exception,&image->exception);
226 image=DestroyImage(image);
227 }
228 return(image);
229}
230␌
231/*
232%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
233% %
234% %
235% %
236% P i n g I m a g e %
237% %
238% %
239% %
240%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
241%
242% PingImage() returns all the properties of an image or image sequence
243% except for the pixels. It is much faster and consumes far less memory
244% than ReadImage(). On failure, a NULL image is returned and exception
245% describes the reason for the failure.
246%
247% The format of the PingImage method is:
248%
249% Image *PingImage(const ImageInfo *image_info,ExceptionInfo *exception)
250%
251% A description of each parameter follows:
252%
253% o image_info: Ping the image defined by the file or filename members of
254% this structure.
255%
256% o exception: return any errors or warnings in this structure.
257%
258*/
259
260#if defined(__cplusplus) || defined(c_plusplus)
261extern "C" {
262#endif
263
264static size_t PingStream(const Image *magick_unused(image),
265 const void *magick_unused(pixels),const size_t columns)
266{
267 magick_unreferenced(image);
268 magick_unreferenced(pixels);
269
270 return(columns);
271}
272
273#if defined(__cplusplus) || defined(c_plusplus)
274}
275#endif
276
277MagickExport Image *PingImage(const ImageInfo *image_info,
278 ExceptionInfo *exception)
279{
280 Image
281 *image;
282
283 ImageInfo
284 *ping_info;
285
286 assert(image_info != (ImageInfo *) NULL);
287 assert(image_info->signature == MagickCoreSignature);
288 assert(exception != (ExceptionInfo *) NULL);
289 if (IsEventLogging() != MagickFalse)
290 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
291 image_info->filename);
292 ping_info=CloneImageInfo(image_info);
293 ping_info->ping=MagickTrue;
294 image=ReadStream(ping_info,&PingStream,exception);
295 if (image != (Image *) NULL)
296 {
297 ResetTimer(&image->timer);
298 if (ping_info->verbose != MagickFalse)
299 (void) IdentifyImage(image,stdout,MagickFalse);
300 }
301 ping_info=DestroyImageInfo(ping_info);
302 return(image);
303}
304␌
305/*
306%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
307% %
308% %
309% %
310% P i n g I m a g e s %
311% %
312% %
313% %
314%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
315%
316% PingImages() pings one or more images and returns them as an image list.
317%
318% The format of the PingImage method is:
319%
320% Image *PingImages(const ImageInfo *image_info,ExceptionInfo *exception)
321%
322% A description of each parameter follows:
323%
324% o image_info: the image info.
325%
326% o exception: return any errors or warnings in this structure.
327%
328*/
329MagickExport Image *PingImages(const ImageInfo *image_info,
330 ExceptionInfo *exception)
331{
332 char
333 filename[MaxTextExtent];
334
335 Image
336 *image,
337 *images;
338
339 ImageInfo
340 *read_info;
341
342 /*
343 Ping image list from a file.
344 */
345 assert(image_info != (ImageInfo *) NULL);
346 assert(image_info->signature == MagickCoreSignature);
347 assert(exception != (ExceptionInfo *) NULL);
348 if (IsEventLogging() != MagickFalse)
349 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
350 image_info->filename);
351 (void) InterpretImageFilename(image_info,(Image *) NULL,image_info->filename,
352 (int) image_info->scene,filename);
353 if (LocaleCompare(filename,image_info->filename) != 0)
354 {
355 ExceptionInfo
356 *sans;
357
358 ssize_t
359 extent,
360 scene;
361
362 /*
363 Images of the form image-%d.png[1-5].
364 */
365 read_info=CloneImageInfo(image_info);
366 sans=AcquireExceptionInfo();
367 (void) SetImageInfo(read_info,0,sans);
368 sans=DestroyExceptionInfo(sans);
369 if (read_info->number_scenes == 0)
370 {
371 read_info=DestroyImageInfo(read_info);
372 return(PingImage(image_info,exception));
373 }
374 (void) CopyMagickString(filename,read_info->filename,MaxTextExtent);
375 images=NewImageList();
376 extent=(ssize_t) (read_info->scene+read_info->number_scenes);
377 for (scene=(ssize_t) read_info->scene; scene < (ssize_t) extent; scene++)
378 {
379 (void) InterpretImageFilename(image_info,(Image *) NULL,filename,(int)
380 scene,read_info->filename);
381 image=PingImage(read_info,exception);
382 if (image == (Image *) NULL)
383 continue;
384 AppendImageToList(&images,image);
385 }
386 read_info=DestroyImageInfo(read_info);
387 return(images);
388 }
389 return(PingImage(image_info,exception));
390}
391␌
392/*
393%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
394% %
395% %
396% %
397% R e a d I m a g e %
398% %
399% %
400% %
401%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
402%
403% ReadImage() reads an image or image sequence from a file or file handle.
404% The method returns a NULL if there is a memory shortage or if the image
405% cannot be read. On failure, a NULL image is returned and exception
406% describes the reason for the failure.
407%
408% The format of the ReadImage method is:
409%
410% Image *ReadImage(const ImageInfo *image_info,ExceptionInfo *exception)
411%
412% A description of each parameter follows:
413%
414% o image_info: Read the image defined by the file or filename members of
415% this structure.
416%
417% o exception: return any errors or warnings in this structure.
418%
419*/
420
421static MagickBooleanType IsCoderAuthorized(const char *coder,
422 const PolicyRights rights,ExceptionInfo *exception)
423{
424 if (IsRightsAuthorized(CoderPolicyDomain,rights,coder) == MagickFalse)
425 {
426 errno=EPERM;
427 (void) ThrowMagickException(exception,GetMagickModule(),PolicyError,
428 "NotAuthorized","`%s'",coder);
429 return(MagickFalse);
430 }
431 return(MagickTrue);
432}
433
434MagickExport Image *ReadImage(const ImageInfo *image_info,
435 ExceptionInfo *exception)
436{
437 char
438 filename[MaxTextExtent],
439 magick[MaxTextExtent],
440 magick_filename[MaxTextExtent];
441
442 const char
443 *value;
444
445 const DelegateInfo
446 *delegate_info;
447
448 const MagickInfo
449 *magick_info;
450
451 ExceptionInfo
452 *sans_exception;
453
454 GeometryInfo
455 geometry_info;
456
457 Image
458 *image,
459 *next;
460
461 ImageInfo
462 *read_info;
463
464 MagickBooleanType
465 status;
466
467 MagickStatusType
468 flags,
469 thread_support;
470
471 /*
472 Determine image type from filename prefix or suffix (e.g. image.jpg).
473 */
474 assert(image_info != (ImageInfo *) NULL);
475 assert(image_info->signature == MagickCoreSignature);
476 assert(image_info->filename != (char *) NULL);
477 assert(exception != (ExceptionInfo *) NULL);
478 if (IsEventLogging() != MagickFalse)
479 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
480 image_info->filename);
481 read_info=CloneImageInfo(image_info);
482 (void) CopyMagickString(magick_filename,read_info->filename,MaxTextExtent);
483 (void) SetImageInfo(read_info,0,exception);
484 (void) CopyMagickString(filename,read_info->filename,MaxTextExtent);
485 (void) CopyMagickString(magick,read_info->magick,MaxTextExtent);
486 /*
487 Call appropriate image reader based on image type.
488 */
489 sans_exception=AcquireExceptionInfo();
490 magick_info=GetMagickInfo(read_info->magick,sans_exception);
491 if (sans_exception->severity == PolicyError)
492 magick_info=GetMagickInfo(read_info->magick,exception);
493 sans_exception=DestroyExceptionInfo(sans_exception);
494 if ((magick_info != (const MagickInfo *) NULL) &&
495 (GetMagickRawSupport(magick_info) != MagickFalse))
496 {
497 if (GetMagickEndianSupport(magick_info) == MagickFalse)
498 read_info->endian=UndefinedEndian;
499 else
500 if (image_info->endian == UndefinedEndian)
501 {
502 unsigned long
503 lsb_first;
504
505 lsb_first=1;
506 read_info->endian=(*(char *) &lsb_first) == 1 ? LSBEndian :
507 MSBEndian;
508 }
509 }
510 if ((magick_info != (const MagickInfo *) NULL) &&
511 (GetMagickSeekableStream(magick_info) != MagickFalse))
512 {
513 MagickBooleanType
514 status;
515
516 image=AcquireImage(read_info);
517 (void) CopyMagickString(image->filename,read_info->filename,
518 MaxTextExtent);
519 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
520 if (status == MagickFalse)
521 {
522 read_info=DestroyImageInfo(read_info);
523 image=DestroyImage(image);
524 return((Image *) NULL);
525 }
526 if (IsBlobSeekable(image) == MagickFalse)
527 {
528 /*
529 Coder requires a seekable stream.
530 */
531 *read_info->filename='\0';
532 status=ImageToFile(image,read_info->filename,exception);
533 if (status == MagickFalse)
534 {
535 (void) CloseBlob(image);
536 read_info=DestroyImageInfo(read_info);
537 image=DestroyImage(image);
538 return((Image *) NULL);
539 }
540 read_info->temporary=MagickTrue;
541 }
542 (void) CloseBlob(image);
543 image=DestroyImage(image);
544 }
545 image=NewImageList();
546 if ((magick_info == (const MagickInfo *) NULL) ||
547 (GetImageDecoder(magick_info) == (DecodeImageHandler *) NULL))
548 {
549 delegate_info=GetDelegateInfo(read_info->magick,(char *) NULL,exception);
550 if (delegate_info == (const DelegateInfo *) NULL)
551 {
552 (void) SetImageInfo(read_info,0,exception);
553 (void) CopyMagickString(read_info->filename,filename,MaxTextExtent);
554 magick_info=GetMagickInfo(read_info->magick,exception);
555 }
556 }
557 if ((magick_info != (const MagickInfo *) NULL) &&
558 (GetImageDecoder(magick_info) != (DecodeImageHandler *) NULL))
559 {
560 /*
561 Call appropriate image reader based on image type.
562 */
563 thread_support=GetMagickThreadSupport(magick_info);
564 if ((thread_support & DecoderThreadSupport) == 0)
565 LockSemaphoreInfo(magick_info->semaphore);
566 status=IsCoderAuthorized(read_info->magick,ReadPolicyRights,exception);
567 image=(Image *) NULL;
568 if (status != MagickFalse)
569 image=GetImageDecoder(magick_info)(read_info,exception);
570 if ((thread_support & DecoderThreadSupport) == 0)
571 UnlockSemaphoreInfo(magick_info->semaphore);
572 }
573 else
574 {
575 MagickBooleanType
576 status;
577
578 delegate_info=GetDelegateInfo(read_info->magick,(char *) NULL,exception);
579 if (delegate_info == (const DelegateInfo *) NULL)
580 {
581 (void) ThrowMagickException(exception,GetMagickModule(),
582 MissingDelegateError,"NoDecodeDelegateForThisImageFormat","`%s'",
583 read_info->magick);
584 if (read_info->temporary != MagickFalse)
585 (void) RelinquishUniqueFileResource(read_info->filename);
586 read_info=DestroyImageInfo(read_info);
587 return((Image *) NULL);
588 }
589 /*
590 Let our decoding delegate process the image.
591 */
592 image=AcquireImage(read_info);
593 if (image == (Image *) NULL)
594 {
595 read_info=DestroyImageInfo(read_info);
596 return((Image *) NULL);
597 }
598 (void) CopyMagickString(image->filename,read_info->filename,
599 MaxTextExtent);
600 *read_info->filename='\0';
601 if (GetDelegateThreadSupport(delegate_info) == MagickFalse)
602 LockSemaphoreInfo(delegate_info->semaphore);
603 status=InvokeDelegate(read_info,image,read_info->magick,(char *) NULL,
604 exception);
605 if (GetDelegateThreadSupport(delegate_info) == MagickFalse)
606 UnlockSemaphoreInfo(delegate_info->semaphore);
607 image=DestroyImageList(image);
608 read_info->temporary=MagickTrue;
609 if (status != MagickFalse)
610 (void) SetImageInfo(read_info,0,exception);
611 magick_info=GetMagickInfo(read_info->magick,exception);
612 if ((magick_info == (const MagickInfo *) NULL) ||
613 (GetImageDecoder(magick_info) == (DecodeImageHandler *) NULL))
614 {
615 if (IsPathAccessible(read_info->filename) != MagickFalse)
616 (void) ThrowMagickException(exception,GetMagickModule(),
617 MissingDelegateError,"NoDecodeDelegateForThisImageFormat","`%s'",
618 read_info->magick);
619 else
620 ThrowFileException(exception,FileOpenError,"UnableToOpenFile",
621 read_info->filename);
622 read_info=DestroyImageInfo(read_info);
623 return((Image *) NULL);
624 }
625 /*
626 Call appropriate image reader based on image type.
627 */
628 thread_support=GetMagickThreadSupport(magick_info);
629 if ((thread_support & DecoderThreadSupport) == 0)
630 LockSemaphoreInfo(magick_info->semaphore);
631 status=IsCoderAuthorized(read_info->magick,ReadPolicyRights,exception);
632 image=(Image *) NULL;
633 if (status != MagickFalse)
634 image=(Image *) (GetImageDecoder(magick_info))(read_info,exception);
635 if ((thread_support & DecoderThreadSupport) == 0)
636 UnlockSemaphoreInfo(magick_info->semaphore);
637 }
638 if (read_info->temporary != MagickFalse)
639 {
640 (void) RelinquishUniqueFileResource(read_info->filename);
641 read_info->temporary=MagickFalse;
642 if (image != (Image *) NULL)
643 (void) CopyMagickString(image->filename,filename,MaxTextExtent);
644 }
645 if (image == (Image *) NULL)
646 {
647 read_info=DestroyImageInfo(read_info);
648 return(image);
649 }
650 if (exception->severity >= ErrorException)
651 (void) LogMagickEvent(ExceptionEvent,GetMagickModule(),
652 "Coder (%s) generated an image despite an error (%d), "
653 "notify the developers",image->magick,exception->severity);
654 if (IsBlobTemporary(image) != MagickFalse)
655 (void) RelinquishUniqueFileResource(read_info->filename);
656 if ((IsSceneGeometry(read_info->scenes,MagickFalse) != MagickFalse) &&
657 (GetImageListLength(image) != 1))
658 {
659 Image
660 *clones;
661
662 clones=CloneImages(image,read_info->scenes,exception);
663 image=DestroyImageList(image);
664 if (clones != (Image *) NULL)
665 image=GetFirstImageInList(clones);
666 if (image == (Image *) NULL)
667 {
668 read_info=DestroyImageInfo(read_info);
669 return(image);
670 }
671 }
672 for (next=image; next != (Image *) NULL; next=GetNextImageInList(next))
673 {
674 char
675 magick_path[MaxTextExtent],
676 *property,
677 timestamp[MaxTextExtent];
678
679 const char
680 *option;
681
682 const StringInfo
683 *profile;
684
685 ssize_t
686 option_type;
687
688 static const char
689 *source_date_epoch = (const char *) NULL;
690
691 static MagickBooleanType
692 epoch_initialized = MagickFalse;
693
694 next->taint=MagickFalse;
695 GetPathComponent(magick_filename,MagickPath,magick_path);
696 if ((*magick_path == '\0') && (*next->magick == '\0'))
697 (void) CopyMagickString(next->magick,magick,MaxTextExtent);
698 (void) CopyMagickString(next->magick_filename,magick_filename,
699 MaxTextExtent);
700 if (IsBlobTemporary(image) != MagickFalse)
701 (void) CopyMagickString(next->filename,filename,MaxTextExtent);
702 if (next->magick_columns == 0)
703 next->magick_columns=next->columns;
704 if (next->magick_rows == 0)
705 next->magick_rows=next->rows;
706 (void) GetImageProperty(next,"exif:*");
707 (void) GetImageProperty(next,"icc:*");
708 (void) GetImageProperty(next,"iptc:*");
709 (void) GetImageProperty(next,"xmp:*");
710 value=GetImageProperty(next,"exif:Orientation");
711 if (value == (char *) NULL)
712 value=GetImageProperty(next,"tiff:Orientation");
713 if (value != (char *) NULL)
714 {
715 next->orientation=(OrientationType) StringToLong(value);
716 (void) DeleteImageProperty(next,"tiff:Orientation");
717 (void) DeleteImageProperty(next,"exif:Orientation");
718 }
719 value=GetImageProperty(next,"exif:XResolution");
720 if (value != (char *) NULL)
721 {
722 geometry_info.rho=next->x_resolution;
723 geometry_info.sigma=1.0;
724 (void) ParseGeometry(value,&geometry_info);
725 if (geometry_info.sigma != 0)
726 next->x_resolution=geometry_info.rho/geometry_info.sigma;
727 if (strchr(value,',') != (char *) NULL)
728 next->x_resolution=geometry_info.rho+geometry_info.sigma/1000.0;
729 (void) DeleteImageProperty(next,"exif:XResolution");
730 }
731 value=GetImageProperty(next,"exif:YResolution");
732 if (value != (char *) NULL)
733 {
734 geometry_info.rho=next->y_resolution;
735 geometry_info.sigma=1.0;
736 (void) ParseGeometry(value,&geometry_info);
737 if (geometry_info.sigma != 0)
738 next->y_resolution=geometry_info.rho/geometry_info.sigma;
739 if (strchr(value,',') != (char *) NULL)
740 next->y_resolution=geometry_info.rho+geometry_info.sigma/1000.0;
741 (void) DeleteImageProperty(next,"exif:YResolution");
742 }
743 value=GetImageProperty(next,"exif:ResolutionUnit");
744 if (value == (char *) NULL)
745 value=GetImageProperty(next,"tiff:ResolutionUnit");
746 if (value != (char *) NULL)
747 {
748 option_type=ParseCommandOption(MagickResolutionOptions,MagickFalse,
749 value);
750 if (option_type >= 0)
751 next->units=(ResolutionType) option_type;
752 (void) DeleteImageProperty(next,"exif:ResolutionUnit");
753 (void) DeleteImageProperty(next,"tiff:ResolutionUnit");
754 }
755 if (next->page.width == 0)
756 next->page.width=next->columns;
757 if (next->page.height == 0)
758 next->page.height=next->rows;
759 option=GetImageOption(read_info,"caption");
760 if (option != (const char *) NULL)
761 {
762 property=InterpretImageProperties(read_info,next,option);
763 (void) SetImageProperty(next,"caption",property);
764 property=DestroyString(property);
765 }
766 option=GetImageOption(read_info,"comment");
767 if (option != (const char *) NULL)
768 {
769 property=InterpretImageProperties(read_info,next,option);
770 (void) SetImageProperty(next,"comment",property);
771 property=DestroyString(property);
772 }
773 option=GetImageOption(read_info,"label");
774 if (option != (const char *) NULL)
775 {
776 property=InterpretImageProperties(read_info,next,option);
777 (void) SetImageProperty(next,"label",property);
778 property=DestroyString(property);
779 }
780 if (LocaleCompare(next->magick,"TEXT") == 0)
781 (void) ParseAbsoluteGeometry("0x0+0+0",&next->page);
782 if ((read_info->extract != (char *) NULL) &&
783 (read_info->stream == (StreamHandler) NULL))
784 {
785 RectangleInfo
786 geometry;
787
788 SetGeometry(next,&geometry);
789 flags=ParseAbsoluteGeometry(read_info->extract,&geometry);
790 if ((next->columns != geometry.width) ||
791 (next->rows != geometry.height))
792 {
793 if (((flags & XValue) != 0) || ((flags & YValue) != 0))
794 {
795 Image
796 *crop_image;
797
798 crop_image=CropImage(next,&geometry,exception);
799 if (crop_image != (Image *) NULL)
800 ReplaceImageInList(&next,crop_image);
801 }
802 else
803 if (((flags & WidthValue) != 0) || ((flags & HeightValue) != 0))
804 {
805 (void) ParseRegionGeometry(next,read_info->extract,&geometry,
806 exception);
807 if ((geometry.width != 0) && (geometry.height != 0))
808 {
809 Image *resize_image=ResizeImage(next,geometry.width,
810 geometry.height,next->filter,next->blur,exception);
811 if (resize_image != (Image *) NULL)
812 ReplaceImageInList(&next,resize_image);
813 }
814 }
815 }
816 }
817 profile=GetImageProfile(next,"icc");
818 if (profile == (const StringInfo *) NULL)
819 profile=GetImageProfile(next,"icm");
820 if (profile != (const StringInfo *) NULL)
821 {
822 next->color_profile.length=GetStringInfoLength(profile);
823 next->color_profile.info=GetStringInfoDatum(profile);
824 }
825 profile=GetImageProfile(next,"iptc");
826 if (profile == (const StringInfo *) NULL)
827 profile=GetImageProfile(next,"8bim");
828 if (profile != (const StringInfo *) NULL)
829 {
830 next->iptc_profile.length=GetStringInfoLength(profile);
831 next->iptc_profile.info=GetStringInfoDatum(profile);
832 }
833 if (epoch_initialized == MagickFalse)
834 {
835 source_date_epoch=getenv("SOURCE_DATE_EPOCH");
836 epoch_initialized=MagickTrue;
837 }
838 if (source_date_epoch == (const char *) NULL)
839 {
840 (void) FormatMagickTime(image->timestamp,MaxTextExtent,timestamp);
841 (void) SetImageProperty(next,"date:timestamp",timestamp);
842 (void) FormatMagickTime((time_t) GetBlobProperties(next)->st_mtime,
843 MaxTextExtent,timestamp);
844 (void) SetImageProperty(next,"date:modify",timestamp);
845 (void) FormatMagickTime((time_t) GetBlobProperties(next)->st_ctime,
846 MaxTextExtent,timestamp);
847 (void) SetImageProperty(next,"date:create",timestamp);
848 }
849 option=GetImageOption(image_info,"delay");
850 if (option != (const char *) NULL)
851 {
852 GeometryInfo
853 geometry_info;
854
855 flags=ParseGeometry(option,&geometry_info);
856 if ((flags & GreaterValue) != 0)
857 {
858 if (next->delay > (size_t) floor(geometry_info.rho+0.5))
859 next->delay=(size_t) floor(geometry_info.rho+0.5);
860 }
861 else
862 if ((flags & LessValue) != 0)
863 {
864 if (next->delay < (size_t) floor(geometry_info.rho+0.5))
865 next->delay=(size_t) floor(geometry_info.rho+0.5);
866 }
867 else
868 next->delay=(size_t) floor(geometry_info.rho+0.5);
869 if ((flags & SigmaValue) != 0)
870 next->ticks_per_second=CastDoubleToLong(floor(
871 geometry_info.sigma+0.5));
872 }
873 option=GetImageOption(image_info,"dispose");
874 if (option != (const char *) NULL)
875 {
876 option_type=ParseCommandOption(MagickDisposeOptions,MagickFalse,
877 option);
878 if (option_type >= 0)
879 next->dispose=(DisposeType) option_type;
880 }
881 if (read_info->verbose != MagickFalse)
882 (void) IdentifyImage(next,stderr,MagickFalse);
883 image=next;
884 }
885 read_info=DestroyImageInfo(read_info);
886 if (GetBlobError(image) != MagickFalse)
887 ThrowReaderException(CorruptImageError,"UnableToReadImageData");
888 return(GetFirstImageInList(image));
889}
890␌
891/*
892%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
893% %
894% %
895% %
896% R e a d I m a g e s %
897% %
898% %
899% %
900%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
901%
902% ReadImages() reads one or more images and returns them as an image list.
903%
904% The format of the ReadImage method is:
905%
906% Image *ReadImages(const ImageInfo *image_info,ExceptionInfo *exception)
907%
908% A description of each parameter follows:
909%
910% o image_info: the image info.
911%
912% o exception: return any errors or warnings in this structure.
913%
914*/
915MagickExport Image *ReadImages(const ImageInfo *image_info,
916 ExceptionInfo *exception)
917{
918 char
919 filename[MaxTextExtent];
920
921 Image
922 *image,
923 *images;
924
925 ImageInfo
926 *read_info;
927
928 /*
929 Read image list from a file.
930 */
931 assert(image_info != (ImageInfo *) NULL);
932 assert(image_info->signature == MagickCoreSignature);
933 assert(exception != (ExceptionInfo *) NULL);
934 if (IsEventLogging() != MagickFalse)
935 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
936 image_info->filename);
937 read_info=CloneImageInfo(image_info);
938 *read_info->magick='\0';
939 (void) InterpretImageFilename(read_info,(Image *) NULL,read_info->filename,
940 (int) read_info->scene,filename);
941 if (LocaleCompare(filename,read_info->filename) != 0)
942 {
943 ExceptionInfo
944 *sans;
945
946 ssize_t
947 extent,
948 scene;
949
950 /*
951 Images of the form image-%d.png[1-5].
952 */
953 sans=AcquireExceptionInfo();
954 (void) SetImageInfo(read_info,0,sans);
955 sans=DestroyExceptionInfo(sans);
956 if (read_info->number_scenes == 0)
957 {
958 read_info=DestroyImageInfo(read_info);
959 return(ReadImage(image_info,exception));
960 }
961 (void) CopyMagickString(filename,read_info->filename,MaxTextExtent);
962 images=NewImageList();
963 extent=(ssize_t) (read_info->scene+read_info->number_scenes);
964 for (scene=(ssize_t) read_info->scene; scene < (ssize_t) extent; scene++)
965 {
966 (void) InterpretImageFilename(image_info,(Image *) NULL,filename,(int)
967 scene,read_info->filename);
968 image=ReadImage(read_info,exception);
969 if (image == (Image *) NULL)
970 continue;
971 AppendImageToList(&images,image);
972 }
973 read_info=DestroyImageInfo(read_info);
974 return(images);
975 }
976 image=ReadImage(read_info,exception);
977 read_info=DestroyImageInfo(read_info);
978 return(image);
979}
980␌
981/*
982%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
983% %
984% %
985% %
986+ R e a d I n l i n e I m a g e %
987% %
988% %
989% %
990%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
991%
992% ReadInlineImage() reads a Base64-encoded inline image or image sequence.
993% The method returns a NULL if there is a memory shortage or if the image
994% cannot be read. On failure, a NULL image is returned and exception
995% describes the reason for the failure.
996%
997% The format of the ReadInlineImage method is:
998%
999% Image *ReadInlineImage(const ImageInfo *image_info,const char *content,
1000% ExceptionInfo *exception)
1001%
1002% A description of each parameter follows:
1003%
1004% o image_info: the image info.
1005%
1006% o content: the image encoded in Base64.
1007%
1008% o exception: return any errors or warnings in this structure.
1009%
1010*/
1011MagickExport Image *ReadInlineImage(const ImageInfo *image_info,
1012 const char *content,ExceptionInfo *exception)
1013{
1014 Image
1015 *image;
1016
1017 ImageInfo
1018 *read_info;
1019
1020 unsigned char
1021 *blob;
1022
1023 size_t
1024 length;
1025
1026 const char
1027 *p;
1028
1029 /*
1030 Skip over header (e.g. data:image/gif;base64,).
1031 */
1032 image=NewImageList();
1033 for (p=content; (*p != ',') && (*p != '\0'); p++) ;
1034 if (*p == '\0')
1035 ThrowReaderException(CorruptImageError,"CorruptImage");
1036 blob=Base64Decode(++p,&length);
1037 if (length == 0)
1038 {
1039 blob=(unsigned char *) RelinquishMagickMemory(blob);
1040 ThrowReaderException(CorruptImageError,"CorruptImage");
1041 }
1042 read_info=CloneImageInfo(image_info);
1043 (void) SetImageInfoProgressMonitor(read_info,(MagickProgressMonitor) NULL,
1044 (void *) NULL);
1045 *read_info->filename='\0';
1046 *read_info->magick='\0';
1047 for (p=content; (*p != '/') && (*p != '\0'); p++) ;
1048 if (*p != '\0')
1049 {
1050 char
1051 *q;
1052
1053 ssize_t
1054 i;
1055
1056 /*
1057 Extract media type.
1058 */
1059 if (LocaleNCompare(++p,"x-",2) == 0)
1060 p+=(ptrdiff_t) 2;
1061 (void) CopyMagickString(read_info->filename,"data.",MagickPathExtent);
1062 q=read_info->filename+5;
1063 for (i=0; (*p != ';') && (*p != '\0') && (i < (MagickPathExtent-6)); i++)
1064 *q++=(*p++);
1065 *q++='\0';
1066 }
1067 image=BlobToImage(read_info,blob,length,exception);
1068 blob=(unsigned char *) RelinquishMagickMemory(blob);
1069 read_info=DestroyImageInfo(read_info);
1070 return(image);
1071}
1072␌
1073/*
1074%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1075% %
1076% %
1077% %
1078% W r i t e I m a g e %
1079% %
1080% %
1081% %
1082%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1083%
1084% WriteImage() writes an image or an image sequence to a file or file handle.
1085% If writing to a file is on disk, the name is defined by the filename member
1086% of the image structure. WriteImage() returns MagickFalse is there is a
1087% memory shortage or if the image cannot be written. Check the exception
1088% member of image to determine the cause for any failure.
1089%
1090% The format of the WriteImage method is:
1091%
1092% MagickBooleanType WriteImage(const ImageInfo *image_info,Image *image)
1093%
1094% A description of each parameter follows:
1095%
1096% o image_info: the image info.
1097%
1098% o image: the image.
1099%
1100*/
1101MagickExport MagickBooleanType WriteImage(const ImageInfo *image_info,
1102 Image *image)
1103{
1104 char
1105 filename[MaxTextExtent];
1106
1107 const char
1108 *option;
1109
1110 const DelegateInfo
1111 *delegate_info;
1112
1113 const MagickInfo
1114 *magick_info;
1115
1116 ExceptionInfo
1117 *exception,
1118 *sans_exception;
1119
1120 ImageInfo
1121 *write_info;
1122
1123 MagickBooleanType
1124 status,
1125 temporary;
1126
1127 MagickStatusType
1128 thread_support;
1129
1130 /*
1131 Determine image type from filename prefix or suffix (e.g. image.jpg).
1132 */
1133 assert(image_info != (ImageInfo *) NULL);
1134 assert(image_info->signature == MagickCoreSignature);
1135 assert(image != (Image *) NULL);
1136 assert(image->signature == MagickCoreSignature);
1137 if (IsEventLogging() != MagickFalse)
1138 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
1139 image_info->filename);
1140 exception=(&image->exception);
1141 sans_exception=AcquireExceptionInfo();
1142 write_info=CloneImageInfo(image_info);
1143 (void) CopyMagickString(write_info->filename,image->filename,MaxTextExtent);
1144 (void) SetImageInfo(write_info,1,sans_exception);
1145 if (*write_info->magick == '\0')
1146 (void) CopyMagickString(write_info->magick,image->magick,MaxTextExtent);
1147 if (LocaleCompare(write_info->magick,"clipmask") == 0)
1148 {
1149 if (image->clip_mask == (Image *) NULL)
1150 {
1151 (void) ThrowMagickException(exception,GetMagickModule(),
1152 OptionError,"NoClipPathDefined","`%s'",image->filename);
1153 write_info=DestroyImageInfo(write_info);
1154 return(MagickFalse);
1155 }
1156 image=image->clip_mask;
1157 (void) SetImageInfo(write_info,1,sans_exception);
1158 }
1159 (void) CopyMagickString(filename,image->filename,MaxTextExtent);
1160 (void) CopyMagickString(image->filename,write_info->filename,MaxTextExtent);
1161 /*
1162 Call appropriate image writer based on image type.
1163 */
1164 magick_info=GetMagickInfo(write_info->magick,sans_exception);
1165 if (sans_exception->severity == PolicyError)
1166 magick_info=GetMagickInfo(write_info->magick,exception);
1167 sans_exception=DestroyExceptionInfo(sans_exception);
1168 if (magick_info != (const MagickInfo *) NULL)
1169 {
1170 if (GetMagickEndianSupport(magick_info) == MagickFalse)
1171 image->endian=UndefinedEndian;
1172 else
1173 if ((image_info->endian == UndefinedEndian) &&
1174 (GetMagickRawSupport(magick_info) != MagickFalse))
1175 {
1176 unsigned long
1177 lsb_first;
1178
1179 lsb_first=1;
1180 image->endian=(*(char *) &lsb_first) == 1 ? LSBEndian : MSBEndian;
1181 }
1182 }
1183 (void) SyncImageProfiles(image);
1184 DisassociateImageStream(image);
1185 option=GetImageOption(image_info,"delegate:bimodal");
1186 if ((option != (const char *) NULL) &&
1187 (IsMagickTrue(option) != MagickFalse) &&
1188 (write_info->page == (char *) NULL) &&
1189 (GetPreviousImageInList(image) == (Image *) NULL) &&
1190 (GetNextImageInList(image) == (Image *) NULL) &&
1191 (IsTaintImage(image) == MagickFalse))
1192 {
1193 delegate_info=GetDelegateInfo(image->magick,write_info->magick,
1194 exception);
1195 if ((delegate_info != (const DelegateInfo *) NULL) &&
1196 (GetDelegateMode(delegate_info) == 0) &&
1197 (IsPathAccessible(image->magick_filename) != MagickFalse))
1198 {
1199 /*
1200 Process image with bi-modal delegate.
1201 */
1202 (void) CopyMagickString(image->filename,image->magick_filename,
1203 MaxTextExtent);
1204 status=InvokeDelegate(write_info,image,image->magick,
1205 write_info->magick,exception);
1206 write_info=DestroyImageInfo(write_info);
1207 (void) CopyMagickString(image->filename,filename,MaxTextExtent);
1208 return(status);
1209 }
1210 }
1211 status=MagickFalse;
1212 temporary=MagickFalse;
1213 if ((magick_info != (const MagickInfo *) NULL) &&
1214 (GetMagickSeekableStream(magick_info) != MagickFalse))
1215 {
1216 char
1217 filename[MaxTextExtent];
1218
1219 (void) CopyMagickString(filename,image->filename,MaxTextExtent);
1220 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
1221 (void) CopyMagickString(image->filename,filename,MaxTextExtent);
1222 if (status != MagickFalse)
1223 {
1224 if (IsBlobSeekable(image) == MagickFalse)
1225 {
1226 /*
1227 A seekable stream is required by the encoder.
1228 */
1229 write_info->adjoin=MagickTrue;
1230 (void) CopyMagickString(write_info->filename,image->filename,
1231 MaxTextExtent);
1232 (void) AcquireUniqueFilename(image->filename);
1233 temporary=MagickTrue;
1234 }
1235 if (CloseBlob(image) == MagickFalse)
1236 status=MagickFalse;
1237 }
1238 }
1239 if ((magick_info != (const MagickInfo *) NULL) &&
1240 (GetImageEncoder(magick_info) != (EncodeImageHandler *) NULL))
1241 {
1242 /*
1243 Call appropriate image writer based on image type.
1244 */
1245 thread_support=GetMagickThreadSupport(magick_info);
1246 if ((thread_support & EncoderThreadSupport) == 0)
1247 LockSemaphoreInfo(magick_info->semaphore);
1248 status=IsCoderAuthorized(write_info->magick,WritePolicyRights,exception);
1249 if (status != MagickFalse)
1250 status=GetImageEncoder(magick_info)(write_info,image);
1251 if ((thread_support & EncoderThreadSupport) == 0)
1252 UnlockSemaphoreInfo(magick_info->semaphore);
1253 }
1254 else
1255 {
1256 delegate_info=GetDelegateInfo((char *) NULL,write_info->magick,
1257 exception);
1258 if (delegate_info != (DelegateInfo *) NULL)
1259 {
1260 /*
1261 Process the image with delegate.
1262 */
1263 *write_info->filename='\0';
1264 if (GetDelegateThreadSupport(delegate_info) == MagickFalse)
1265 LockSemaphoreInfo(delegate_info->semaphore);
1266 status=InvokeDelegate(write_info,image,(char *) NULL,
1267 write_info->magick,exception);
1268 if (GetDelegateThreadSupport(delegate_info) == MagickFalse)
1269 UnlockSemaphoreInfo(delegate_info->semaphore);
1270 (void) CopyMagickString(image->filename,filename,MaxTextExtent);
1271 }
1272 else
1273 {
1274 sans_exception=AcquireExceptionInfo();
1275 magick_info=GetMagickInfo(write_info->magick,sans_exception);
1276 if (sans_exception->severity == PolicyError)
1277 magick_info=GetMagickInfo(write_info->magick,exception);
1278 sans_exception=DestroyExceptionInfo(sans_exception);
1279 if ((write_info->affirm == MagickFalse) &&
1280 (magick_info == (const MagickInfo *) NULL))
1281 {
1282 (void) CopyMagickString(write_info->magick,image->magick,
1283 MaxTextExtent);
1284 magick_info=GetMagickInfo(write_info->magick,exception);
1285 }
1286 if ((magick_info == (const MagickInfo *) NULL) ||
1287 (GetImageEncoder(magick_info) == (EncodeImageHandler *) NULL))
1288 {
1289 char
1290 extension[MaxTextExtent];
1291
1292 GetPathComponent(image->filename,ExtensionPath,extension);
1293 if (*extension != '\0')
1294 magick_info=GetMagickInfo(extension,exception);
1295 else
1296 magick_info=GetMagickInfo(image->magick,exception);
1297 (void) CopyMagickString(image->filename,filename,MaxTextExtent);
1298 }
1299 if ((magick_info == (const MagickInfo *) NULL) ||
1300 (GetImageEncoder(magick_info) == (EncodeImageHandler *) NULL))
1301 {
1302 magick_info=GetMagickInfo(image->magick,exception);
1303 if ((magick_info == (const MagickInfo *) NULL) ||
1304 (GetImageEncoder(magick_info) == (EncodeImageHandler *) NULL))
1305 (void) ThrowMagickException(exception,GetMagickModule(),
1306 MissingDelegateError,"NoEncodeDelegateForThisImageFormat",
1307 "`%s'",write_info->magick);
1308 else
1309 (void) ThrowMagickException(exception,GetMagickModule(),
1310 MissingDelegateWarning,"NoEncodeDelegateForThisImageFormat",
1311 "`%s'",write_info->magick);
1312 }
1313 if ((magick_info != (const MagickInfo *) NULL) &&
1314 (GetImageEncoder(magick_info) != (EncodeImageHandler *) NULL))
1315 {
1316 /*
1317 Call appropriate image writer based on image type.
1318 */
1319 thread_support=GetMagickThreadSupport(magick_info);
1320 if ((thread_support & EncoderThreadSupport) == 0)
1321 LockSemaphoreInfo(magick_info->semaphore);
1322 status=IsCoderAuthorized(write_info->magick,WritePolicyRights,
1323 exception);
1324 if (status != MagickFalse)
1325 status=GetImageEncoder(magick_info)(write_info,image);
1326 if ((thread_support & EncoderThreadSupport) == 0)
1327 UnlockSemaphoreInfo(magick_info->semaphore);
1328 }
1329 }
1330 }
1331 if (temporary != MagickFalse)
1332 {
1333 /*
1334 Copy temporary image file to permanent.
1335 */
1336 status=OpenBlob(write_info,image,ReadBinaryBlobMode,exception);
1337 if (status != MagickFalse)
1338 {
1339 (void) RelinquishUniqueFileResource(write_info->filename);
1340 status=ImageToFile(image,write_info->filename,exception);
1341 }
1342 if (CloseBlob(image) == MagickFalse)
1343 status=MagickFalse;
1344 (void) RelinquishUniqueFileResource(image->filename);
1345 (void) CopyMagickString(image->filename,write_info->filename,
1346 MaxTextExtent);
1347 }
1348 if ((LocaleCompare(write_info->magick,"info") != 0) &&
1349 (write_info->verbose != MagickFalse))
1350 (void) IdentifyImage(image,stderr,MagickFalse);
1351 write_info=DestroyImageInfo(write_info);
1352 if (GetBlobError(image) != MagickFalse)
1353 ThrowWriterException(FileOpenError,"UnableToWriteFile");
1354 return(status);
1355}
1356␌
1357/*
1358%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1359% %
1360% %
1361% %
1362% W r i t e I m a g e s %
1363% %
1364% %
1365% %
1366%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1367%
1368% WriteImages() writes an image sequence into one or more files. While
1369% WriteImage() can write an image sequence, it is limited to writing
1370% the sequence into a single file using a format which supports multiple
1371% frames. WriteImages(), however, does not have this limitation, instead it
1372% generates multiple output files if necessary (or when requested). When
1373% ImageInfo's adjoin flag is set to MagickFalse, the file name is expected
1374% to include a printf-style formatting string for the frame number (e.g.
1375% "image%02d.png").
1376%
1377% The format of the WriteImages method is:
1378%
1379% MagickBooleanType WriteImages(const ImageInfo *image_info,Image *images,
1380% const char *filename,ExceptionInfo *exception)
1381%
1382% A description of each parameter follows:
1383%
1384% o image_info: the image info.
1385%
1386% o images: the image list.
1387%
1388% o filename: the image filename.
1389%
1390% o exception: return any errors or warnings in this structure.
1391%
1392*/
1393MagickExport MagickBooleanType WriteImages(const ImageInfo *image_info,
1394 Image *images,const char *filename,ExceptionInfo *exception)
1395{
1396#define WriteImageTag "Write/Image"
1397
1398 ExceptionInfo
1399 *sans_exception;
1400
1401 ImageInfo
1402 *write_info;
1403
1404 MagickBooleanType
1405 proceed;
1406
1407 MagickOffsetType
1408 i;
1409
1410 MagickProgressMonitor
1411 progress_monitor;
1412
1413 MagickSizeType
1414 number_images;
1415
1416 MagickStatusType
1417 status;
1418
1419 Image
1420 *p;
1421
1422 assert(image_info != (const ImageInfo *) NULL);
1423 assert(image_info->signature == MagickCoreSignature);
1424 assert(images != (Image *) NULL);
1425 assert(images->signature == MagickCoreSignature);
1426 assert(exception != (ExceptionInfo *) NULL);
1427 if (IsEventLogging() != MagickFalse)
1428 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
1429 write_info=CloneImageInfo(image_info);
1430 *write_info->magick='\0';
1431 images=GetFirstImageInList(images);
1432 if (images == (Image *) NULL)
1433 return(MagickFalse);
1434 if (filename != (const char *) NULL)
1435 for (p=images; p != (Image *) NULL; p=GetNextImageInList(p))
1436 (void) CopyMagickString(p->filename,filename,MaxTextExtent);
1437 (void) CopyMagickString(write_info->filename,images->filename,MaxTextExtent);
1438 sans_exception=AcquireExceptionInfo();
1439 (void) SetImageInfo(write_info,(unsigned int) GetImageListLength(images),
1440 sans_exception);
1441 sans_exception=DestroyExceptionInfo(sans_exception);
1442 if (*write_info->magick == '\0')
1443 (void) CopyMagickString(write_info->magick,images->magick,MaxTextExtent);
1444 p=images;
1445 for ( ; GetNextImageInList(p) != (Image *) NULL; p=GetNextImageInList(p))
1446 {
1447 if (p->scene >= GetNextImageInList(p)->scene)
1448 {
1449 ssize_t
1450 i;
1451
1452 /*
1453 Generate consistent scene numbers.
1454 */
1455 i=(ssize_t) images->scene;
1456 for (p=images; p != (Image *) NULL; p=GetNextImageInList(p))
1457 p->scene=(size_t) i++;
1458 break;
1459 }
1460 }
1461 /*
1462 Write images.
1463 */
1464 status=MagickTrue;
1465 progress_monitor=(MagickProgressMonitor) NULL;
1466 i=0;
1467 number_images=GetImageListLength(images);
1468 for (p=images; p != (Image *) NULL; p=GetNextImageInList(p))
1469 {
1470 if (number_images != 1)
1471 progress_monitor=SetImageProgressMonitor(p,(MagickProgressMonitor) NULL,
1472 p->client_data);
1473 status&=WriteImage(write_info,p);
1474 GetImageException(p,exception);
1475 if (number_images != 1)
1476 (void) SetImageProgressMonitor(p,progress_monitor,p->client_data);
1477 if (write_info->adjoin != MagickFalse)
1478 break;
1479 if (number_images != 1)
1480 {
1481 proceed=SetImageProgress(p,WriteImageTag,i++,number_images);
1482 if (proceed == MagickFalse)
1483 break;
1484 }
1485 }
1486 write_info=DestroyImageInfo(write_info);
1487 return(status != 0 ? MagickTrue : MagickFalse);
1488}
_DelegateInfo
Definition delegate.h:29
_ExceptionInfo
Definition exception.h:103
_GeometryInfo
Definition geometry.h:107
_ImageInfo
Definition image.h:346
_Image
Definition image.h:134
_MagickInfo
Definition magick.h:58
_RectangleInfo
Definition geometry.h:124
_StringInfo
Definition string_.h:30