MagickCore 6.9.13
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property.c
1/*
2%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3% %
4% %
5% %
6% PPPP RRRR OOO PPPP EEEEE RRRR TTTTT Y Y %
7% P P R R O O P P E R R T Y Y %
8% PPPP RRRR O O PPPP EEE RRRR T Y %
9% P R R O O P E R R T Y %
10% P R R OOO P EEEEE R R T Y %
11% %
12% %
13% MagickCore Property Methods %
14% %
15% Software Design %
16% Cristy %
17% March 2000 %
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/license/ %
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/*
41 Include declarations.
42*/
43#include "magick/studio.h"
44#include "magick/artifact.h"
45#include "magick/attribute.h"
46#include "magick/cache.h"
47#include "magick/cache-private.h"
48#include "magick/color.h"
49#include "magick/colorspace-private.h"
50#include "magick/compare.h"
51#include "magick/constitute.h"
52#include "magick/draw.h"
53#include "magick/effect.h"
54#include "magick/exception.h"
55#include "magick/exception-private.h"
56#include "magick/fx.h"
57#include "magick/fx-private.h"
58#include "magick/gem.h"
59#include "magick/geometry.h"
60#include "magick/histogram.h"
61#include "magick/image.h"
62#include "magick/image.h"
63#include "magick/layer.h"
64#include "magick/list.h"
65#include "magick/magick.h"
66#include "magick/memory_.h"
67#include "magick/monitor.h"
68#include "magick/montage.h"
69#include "magick/option.h"
70#include "magick/policy.h"
71#include "magick/profile.h"
72#include "magick/property.h"
73#include "magick/quantum.h"
74#include "magick/resource_.h"
75#include "magick/splay-tree.h"
76#include "magick/signature-private.h"
77#include "magick/statistic.h"
78#include "magick/string_.h"
79#include "magick/string-private.h"
80#include "magick/token.h"
81#include "magick/token-private.h"
82#include "magick/utility.h"
83#include "magick/version.h"
84#include "magick/xml-tree.h"
85#if defined(MAGICKCORE_LCMS_DELEGATE)
86#if defined(MAGICKCORE_HAVE_LCMS2_LCMS2_H)
87#include <lcms2/lcms2.h>
88#elif defined(MAGICKCORE_HAVE_LCMS2_H)
89#include "lcms2.h"
90#elif defined(MAGICKCORE_HAVE_LCMS_LCMS_H)
91#include <lcms/lcms.h>
92#else
93#include "lcms.h"
94#endif
95#endif
96␌
97/*
98 Define declarations.
99*/
100#if defined(MAGICKCORE_LCMS_DELEGATE)
101#if defined(LCMS_VERSION) && (LCMS_VERSION < 2000)
102#define cmsUInt32Number DWORD
103#endif
104#endif
105␌
106/*
107%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
108% %
109% %
110% %
111% C l o n e I m a g e P r o p e r t i e s %
112% %
113% %
114% %
115%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
116%
117% CloneImageProperties() clones all the image properties to another image.
118%
119% The format of the CloneImageProperties method is:
120%
121% MagickBooleanType CloneImageProperties(Image *image,
122% const Image *clone_image)
123%
124% A description of each parameter follows:
125%
126% o image: the image.
127%
128% o clone_image: the clone image.
129%
130*/
131
132typedef char
133 *(*CloneKeyFunc)(const char *),
134 *(*CloneValueFunc)(const char *);
135
136static inline void *ClonePropertyKey(void *key)
137{
138 return((void *) ((CloneKeyFunc) ConstantString)((const char *) key));
139}
140
141static inline void *ClonePropertyValue(void *value)
142{
143 return((void *) ((CloneValueFunc) ConstantString)((const char *) value));
144}
145
146MagickExport MagickBooleanType CloneImageProperties(Image *image,
147 const Image *clone_image)
148{
149 assert(image != (Image *) NULL);
150 assert(image->signature == MagickCoreSignature);
151 assert(clone_image != (const Image *) NULL);
152 assert(clone_image->signature == MagickCoreSignature);
153 if (IsEventLogging() != MagickFalse)
154 {
155 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
156 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
157 clone_image->filename);
158 }
159 (void) CopyMagickString(image->filename,clone_image->filename,MaxTextExtent);
160 (void) CopyMagickString(image->magick_filename,clone_image->magick_filename,
161 MaxTextExtent);
162 image->compression=clone_image->compression;
163 image->quality=clone_image->quality;
164 image->depth=clone_image->depth;
165 image->background_color=clone_image->background_color;
166 image->border_color=clone_image->border_color;
167 image->matte_color=clone_image->matte_color;
168 image->transparent_color=clone_image->transparent_color;
169 image->gamma=clone_image->gamma;
170 image->chromaticity=clone_image->chromaticity;
171 image->rendering_intent=clone_image->rendering_intent;
172 image->black_point_compensation=clone_image->black_point_compensation;
173 image->units=clone_image->units;
174 image->montage=(char *) NULL;
175 image->directory=(char *) NULL;
176 (void) CloneString(&image->geometry,clone_image->geometry);
177 image->offset=clone_image->offset;
178 image->x_resolution=clone_image->x_resolution;
179 image->y_resolution=clone_image->y_resolution;
180 image->page=clone_image->page;
181 image->tile_offset=clone_image->tile_offset;
182 image->extract_info=clone_image->extract_info;
183 image->bias=clone_image->bias;
184 image->filter=clone_image->filter;
185 image->blur=clone_image->blur;
186 image->fuzz=clone_image->fuzz;
187 image->intensity=clone_image->intensity;
188 image->interlace=clone_image->interlace;
189 image->interpolate=clone_image->interpolate;
190 image->endian=clone_image->endian;
191 image->gravity=clone_image->gravity;
192 image->compose=clone_image->compose;
193 image->orientation=clone_image->orientation;
194 image->scene=clone_image->scene;
195 image->dispose=clone_image->dispose;
196 image->delay=clone_image->delay;
197 image->ticks_per_second=clone_image->ticks_per_second;
198 image->iterations=clone_image->iterations;
199 image->total_colors=clone_image->total_colors;
200 image->taint=clone_image->taint;
201 image->progress_monitor=clone_image->progress_monitor;
202 image->client_data=clone_image->client_data;
203 image->start_loop=clone_image->start_loop;
204 image->error=clone_image->error;
205 image->signature=clone_image->signature;
206 if (clone_image->properties != (void *) NULL)
207 {
208 if (image->properties != (void *) NULL)
209 DestroyImageProperties(image);
210 image->properties=CloneSplayTree((SplayTreeInfo *)
211 clone_image->properties,ClonePropertyKey,ClonePropertyValue);
212 }
213 return(MagickTrue);
214}
215␌
216/*
217%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
218% %
219% %
220% %
221% D e f i n e I m a g e P r o p e r t y %
222% %
223% %
224% %
225%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
226%
227% DefineImageProperty() associates an assignment string of the form
228% "key=value" with an artifact or options. It is equivalent to
229% SetImageProperty().
230%
231% The format of the DefineImageProperty method is:
232%
233% MagickBooleanType DefineImageProperty(Image *image,
234% const char *property)
235%
236% A description of each parameter follows:
237%
238% o image: the image.
239%
240% o property: the image property.
241%
242*/
243MagickExport MagickBooleanType DefineImageProperty(Image *image,
244 const char *property)
245{
246 char
247 key[MaxTextExtent],
248 value[MaxTextExtent];
249
250 char
251 *p;
252
253 assert(image != (Image *) NULL);
254 assert(property != (const char *) NULL);
255 (void) CopyMagickString(key,property,MaxTextExtent-1);
256 for (p=key; *p != '\0'; p++)
257 if (*p == '=')
258 break;
259 *value='\0';
260 if (*p == '=')
261 (void) CopyMagickString(value,p+1,MaxTextExtent);
262 *p='\0';
263 return(SetImageProperty(image,key,value));
264}
265␌
266/*
267%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
268% %
269% %
270% %
271% D e l e t e I m a g e P r o p e r t y %
272% %
273% %
274% %
275%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
276%
277% DeleteImageProperty() deletes an image property.
278%
279% The format of the DeleteImageProperty method is:
280%
281% MagickBooleanType DeleteImageProperty(Image *image,const char *property)
282%
283% A description of each parameter follows:
284%
285% o image: the image.
286%
287% o property: the image property.
288%
289*/
290MagickExport MagickBooleanType DeleteImageProperty(Image *image,
291 const char *property)
292{
293 assert(image != (Image *) NULL);
294 assert(image->signature == MagickCoreSignature);
295 if (IsEventLogging() != MagickFalse)
296 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
297 if (image->properties == (void *) NULL)
298 return(MagickFalse);
299 return(DeleteNodeFromSplayTree((SplayTreeInfo *) image->properties,property));
300}
301␌
302/*
303%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
304% %
305% %
306% %
307% D e s t r o y I m a g e P r o p e r t i e s %
308% %
309% %
310% %
311%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
312%
313% DestroyImageProperties() destroys all properties and associated memory
314% attached to the given image.
315%
316% The format of the DestroyDefines method is:
317%
318% void DestroyImageProperties(Image *image)
319%
320% A description of each parameter follows:
321%
322% o image: the image.
323%
324*/
325MagickExport void DestroyImageProperties(Image *image)
326{
327 assert(image != (Image *) NULL);
328 assert(image->signature == MagickCoreSignature);
329 if (IsEventLogging() != MagickFalse)
330 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
331 if (image->properties != (void *) NULL)
332 image->properties=(void *) DestroySplayTree((SplayTreeInfo *)
333 image->properties);
334}
335␌
336/*
337%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
338% %
339% %
340% %
341% F o r m a t I m a g e P r o p e r t y %
342% %
343% %
344% %
345%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
346%
347% FormatImageProperty() permits formatted property/value pairs to be saved as
348% an image property.
349%
350% The format of the FormatImageProperty method is:
351%
352% MagickBooleanType FormatImageProperty(Image *image,const char *property,
353% const char *format,...)
354%
355% A description of each parameter follows.
356%
357% o image: The image.
358%
359% o property: The attribute property.
360%
361% o format: A string describing the format to use to write the remaining
362% arguments.
363%
364*/
365MagickExport MagickBooleanType FormatImageProperty(Image *image,
366 const char *property,const char *format,...)
367{
368 char
369 value[MaxTextExtent];
370
371 ssize_t
372 n;
373
374 va_list
375 operands;
376
377 va_start(operands,format);
378 n=FormatLocaleStringList(value,MaxTextExtent,format,operands);
379 (void) n;
380 va_end(operands);
381 return(SetImageProperty(image,property,value));
382}
383␌
384/*
385%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
386% %
387% %
388% %
389% G e t I m a g e P r o p e r t y %
390% %
391% %
392% %
393%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
394%
395% GetImageProperty() gets a value associated with an image property.
396%
397% This includes, profile prefixes, such as "exif:", "iptc:" and "8bim:"
398% It does not handle non-profile prefixes, such as "fx:", "option:", or
399% "artifact:".
400%
401% The returned string is stored as a prosperity of the same name for faster
402% lookup later. It should NOT be freed by the caller.
403%
404% The format of the GetImageProperty method is:
405%
406% const char *GetImageProperty(const Image *image,const char *key)
407%
408% A description of each parameter follows:
409%
410% o image: the image.
411%
412% o key: the key.
413%
414*/
415
416static char
417 *TracePSClippath(const unsigned char *,size_t,const size_t,
418 const size_t),
419 *TraceSVGClippath(const unsigned char *,size_t,const size_t,
420 const size_t);
421
422static MagickBooleanType GetIPTCProperty(const Image *image,const char *key)
423{
424 char
425 *attribute,
426 *message;
427
428 const StringInfo
429 *profile;
430
431 long
432 count,
433 dataset,
434 record;
435
436 ssize_t
437 i;
438
439 size_t
440 length;
441
442 profile=GetImageProfile(image,"iptc");
443 if (profile == (StringInfo *) NULL)
444 profile=GetImageProfile(image,"8bim");
445 if (profile == (StringInfo *) NULL)
446 return(MagickFalse);
447 count=sscanf(key,"IPTC:%ld:%ld",&dataset,&record);
448 if (count != 2)
449 return(MagickFalse);
450 attribute=(char *) NULL;
451 for (i=0; i < (ssize_t) GetStringInfoLength(profile); i+=(ssize_t) length)
452 {
453 length=1;
454 if ((ssize_t) GetStringInfoDatum(profile)[i] != 0x1c)
455 continue;
456 length=(size_t) (GetStringInfoDatum(profile)[i+3] << 8);
457 length|=GetStringInfoDatum(profile)[i+4];
458 if (((long) GetStringInfoDatum(profile)[i+1] == dataset) &&
459 ((long) GetStringInfoDatum(profile)[i+2] == record))
460 {
461 message=(char *) NULL;
462 if (~length >= 1)
463 message=(char *) AcquireQuantumMemory(length+1UL,sizeof(*message));
464 if (message != (char *) NULL)
465 {
466 (void) CopyMagickString(message,(char *) GetStringInfoDatum(
467 profile)+i+5,length+1);
468 (void) ConcatenateString(&attribute,message);
469 (void) ConcatenateString(&attribute,";");
470 message=DestroyString(message);
471 }
472 }
473 i+=5;
474 }
475 if ((attribute == (char *) NULL) || (*attribute == ';'))
476 {
477 if (attribute != (char *) NULL)
478 attribute=DestroyString(attribute);
479 return(MagickFalse);
480 }
481 attribute[strlen(attribute)-1]='\0';
482 (void) SetImageProperty((Image *) image,key,(const char *) attribute);
483 attribute=DestroyString(attribute);
484 return(MagickTrue);
485}
486
487static inline int ReadPropertyByte(const unsigned char **p,size_t *length)
488{
489 int
490 c;
491
492 if (*length < 1)
493 return(EOF);
494 c=(int) (*(*p)++);
495 (*length)--;
496 return(c);
497}
498
499static inline signed int ReadPropertyMSBLong(const unsigned char **p,
500 size_t *length)
501{
502 union
503 {
504 unsigned int
505 unsigned_value;
506
507 signed int
508 signed_value;
509 } quantum;
510
511 int
512 c;
513
514 ssize_t
515 i;
516
517 unsigned char
518 buffer[4];
519
520 unsigned int
521 value;
522
523 if (*length < 4)
524 return(-1);
525 for (i=0; i < 4; i++)
526 {
527 c=(int) (*(*p)++);
528 (*length)--;
529 buffer[i]=(unsigned char) c;
530 }
531 value=(unsigned int) buffer[0] << 24;
532 value|=(unsigned int) buffer[1] << 16;
533 value|=(unsigned int) buffer[2] << 8;
534 value|=(unsigned int) buffer[3];
535 quantum.unsigned_value=value & 0xffffffff;
536 return(quantum.signed_value);
537}
538
539static inline signed short ReadPropertyMSBShort(const unsigned char **p,
540 size_t *length)
541{
542 union
543 {
544 unsigned short
545 unsigned_value;
546
547 signed short
548 signed_value;
549 } quantum;
550
551 int
552 c;
553
554 ssize_t
555 i;
556
557 unsigned char
558 buffer[2];
559
560 unsigned short
561 value;
562
563 if (*length < 2)
564 return((unsigned short) ~0);
565 for (i=0; i < 2; i++)
566 {
567 c=(int) (*(*p)++);
568 (*length)--;
569 buffer[i]=(unsigned char) c;
570 }
571 value=(unsigned short) buffer[0] << 8;
572 value|=(unsigned short) buffer[1];
573 quantum.unsigned_value=value & 0xffff;
574 return(quantum.signed_value);
575}
576
577static MagickBooleanType Get8BIMProperty(const Image *image,const char *key)
578{
579 char
580 *attribute,
581 format[MaxTextExtent],
582 *macroman_resource = (char *) NULL,
583 name[MaxTextExtent],
584 *resource = (char *) NULL;
585
586 const StringInfo
587 *profile;
588
589 const unsigned char
590 *info;
591
592 long
593 start,
594 stop;
595
596 MagickBooleanType
597 status;
598
599 ssize_t
600 i;
601
602 size_t
603 length;
604
605 ssize_t
606 count,
607 id,
608 sub_number;
609
610 /*
611 There are no newlines in path names, so it's safe as terminator.
612 */
613 profile=GetImageProfile(image,"8bim");
614 if (profile == (StringInfo *) NULL)
615 return(MagickFalse);
616 count=(ssize_t) sscanf(key,"8BIM:%ld,%ld:%1024[^\n]\n%1024[^\n]",&start,&stop,
617 name,format);
618 if ((count != 2) && (count != 3) && (count != 4))
619 return(MagickFalse);
620 if (count < 4)
621 (void) CopyMagickString(format,"SVG",MaxTextExtent);
622 if (count < 3)
623 *name='\0';
624 sub_number=1;
625 if (*name == '#')
626 sub_number=(ssize_t) StringToLong(&name[1]);
627 sub_number=MagickMax(sub_number,1L);
628 status=MagickFalse;
629 length=GetStringInfoLength(profile);
630 info=GetStringInfoDatum(profile);
631 while ((length > 0) && (status == MagickFalse))
632 {
633 if (ReadPropertyByte(&info,&length) != (unsigned char) '8')
634 continue;
635 if (ReadPropertyByte(&info,&length) != (unsigned char) 'B')
636 continue;
637 if (ReadPropertyByte(&info,&length) != (unsigned char) 'I')
638 continue;
639 if (ReadPropertyByte(&info,&length) != (unsigned char) 'M')
640 continue;
641 id=(ssize_t) ReadPropertyMSBShort(&info,&length);
642 if (id < (ssize_t) start)
643 continue;
644 if (id > (ssize_t) stop)
645 continue;
646 if (macroman_resource != (char *) NULL)
647 macroman_resource=DestroyString(macroman_resource);
648 if (resource != (char *) NULL)
649 resource=DestroyString(resource);
650 count=(ssize_t) ReadPropertyByte(&info,&length);
651 if ((count != 0) && ((size_t) count <= length))
652 {
653 resource=(char *) NULL;
654 if (~((size_t) count) >= (MaxTextExtent-1))
655 resource=(char *) AcquireQuantumMemory((size_t) count+MaxTextExtent,
656 sizeof(*resource));
657 if (resource != (char *) NULL)
658 {
659 for (i=0; i < (ssize_t) count; i++)
660 resource[i]=(char) ReadPropertyByte(&info,&length);
661 resource[count]='\0';
662 }
663 }
664 if ((count & 0x01) == 0)
665 (void) ReadPropertyByte(&info,&length);
666 count=(ssize_t) ReadPropertyMSBLong(&info,&length);
667 if ((count < 0) || ((size_t) count > length))
668 {
669 length=0;
670 continue;
671 }
672 macroman_resource=(char *) ConvertMacRomanToUTF8((unsigned char *)
673 resource);
674 if ((*name != '\0') && (*name != '#'))
675 if ((resource == (char *) NULL) || (macroman_resource == (char *) NULL) ||
676 ((LocaleCompare(name,resource) != 0) &&
677 (LocaleCompare(name,macroman_resource) != 0)))
678 {
679 /*
680 No name match, scroll forward and try next.
681 */
682 info+=count;
683 length-=MagickMin(count,(ssize_t) length);
684 continue;
685 }
686 if ((*name == '#') && (sub_number != 1))
687 {
688 /*
689 No numbered match, scroll forward and try next.
690 */
691 sub_number--;
692 info+=count;
693 length-=MagickMin(count,(ssize_t) length);
694 continue;
695 }
696 /*
697 We have the resource of interest.
698 */
699 attribute=(char *) NULL;
700 if (~((size_t) count) >= (MaxTextExtent-1))
701 attribute=(char *) AcquireQuantumMemory((size_t) count+MaxTextExtent,
702 sizeof(*attribute));
703 if (attribute != (char *) NULL)
704 {
705 (void) memcpy(attribute,(char *) info,(size_t) count);
706 attribute[count]='\0';
707 info+=count;
708 length-=MagickMin(count,(ssize_t) length);
709 if ((id <= 1999) || (id >= 2999))
710 (void) SetImageProperty((Image *) image,key,(const char *) attribute);
711 else
712 {
713 char
714 *path;
715
716 if (LocaleCompare(format,"svg") == 0)
717 path=TraceSVGClippath((unsigned char *) attribute,(size_t) count,
718 image->columns,image->rows);
719 else
720 path=TracePSClippath((unsigned char *) attribute,(size_t) count,
721 image->columns,image->rows);
722 (void) SetImageProperty((Image *) image,key,(const char *) path);
723 path=DestroyString(path);
724 }
725 attribute=DestroyString(attribute);
726 status=MagickTrue;
727 }
728 }
729 if (macroman_resource != (char *) NULL)
730 macroman_resource=DestroyString(macroman_resource);
731 if (resource != (char *) NULL)
732 resource=DestroyString(resource);
733 return(status);
734}
735
736static inline signed int ReadPropertySignedLong(const EndianType endian,
737 const unsigned char *buffer)
738{
739 union
740 {
741 unsigned int
742 unsigned_value;
743
744 signed int
745 signed_value;
746 } quantum;
747
748 unsigned int
749 value;
750
751 if (endian == LSBEndian)
752 {
753 value=(unsigned int) buffer[3] << 24;
754 value|=(unsigned int) buffer[2] << 16;
755 value|=(unsigned int) buffer[1] << 8;
756 value|=(unsigned int) buffer[0];
757 quantum.unsigned_value=value & 0xffffffff;
758 return(quantum.signed_value);
759 }
760 value=(unsigned int) buffer[0] << 24;
761 value|=(unsigned int) buffer[1] << 16;
762 value|=(unsigned int) buffer[2] << 8;
763 value|=(unsigned int) buffer[3];
764 quantum.unsigned_value=value & 0xffffffff;
765 return(quantum.signed_value);
766}
767
768static inline unsigned int ReadPropertyUnsignedLong(const EndianType endian,
769 const unsigned char *buffer)
770{
771 unsigned int
772 value;
773
774 if (endian == LSBEndian)
775 {
776 value=(unsigned int) buffer[3] << 24;
777 value|=(unsigned int) buffer[2] << 16;
778 value|=(unsigned int) buffer[1] << 8;
779 value|=(unsigned int) buffer[0];
780 return(value & 0xffffffff);
781 }
782 value=(unsigned int) buffer[0] << 24;
783 value|=(unsigned int) buffer[1] << 16;
784 value|=(unsigned int) buffer[2] << 8;
785 value|=(unsigned int) buffer[3];
786 return(value & 0xffffffff);
787}
788
789static inline signed short ReadPropertySignedShort(const EndianType endian,
790 const unsigned char *buffer)
791{
792 union
793 {
794 unsigned short
795 unsigned_value;
796
797 signed short
798 signed_value;
799 } quantum;
800
801 unsigned short
802 value;
803
804 if (endian == LSBEndian)
805 {
806 value=(unsigned short) buffer[1] << 8;
807 value|=(unsigned short) buffer[0];
808 quantum.unsigned_value=value & 0xffff;
809 return(quantum.signed_value);
810 }
811 value=(unsigned short) buffer[0] << 8;
812 value|=(unsigned short) buffer[1];
813 quantum.unsigned_value=value & 0xffff;
814 return(quantum.signed_value);
815}
816
817static inline unsigned short ReadPropertyUnsignedShort(const EndianType endian,
818 const unsigned char *buffer)
819{
820 unsigned short
821 value;
822
823 if (endian == LSBEndian)
824 {
825 value=(unsigned short) buffer[1] << 8;
826 value|=(unsigned short) buffer[0];
827 return(value & 0xffff);
828 }
829 value=(unsigned short) buffer[0] << 8;
830 value|=(unsigned short) buffer[1];
831 return(value & 0xffff);
832}
833
834static MagickBooleanType GetEXIFProperty(const Image *image,
835 const char *property)
836{
837#define MaxDirectoryStack 16
838#define EXIF_DELIMITER "\n"
839#define EXIF_NUM_FORMATS 12
840#define EXIF_FMT_BYTE 1
841#define EXIF_FMT_STRING 2
842#define EXIF_FMT_USHORT 3
843#define EXIF_FMT_ULONG 4
844#define EXIF_FMT_URATIONAL 5
845#define EXIF_FMT_SBYTE 6
846#define EXIF_FMT_UNDEFINED 7
847#define EXIF_FMT_SSHORT 8
848#define EXIF_FMT_SLONG 9
849#define EXIF_FMT_SRATIONAL 10
850#define EXIF_FMT_SINGLE 11
851#define EXIF_FMT_DOUBLE 12
852#define GPS_LATITUDE 0x10002
853#define GPS_LONGITUDE 0x10004
854#define GPS_TIMESTAMP 0x10007
855#define TAG_EXIF_OFFSET 0x8769
856#define TAG_GPS_OFFSET 0x8825
857#define TAG_INTEROP_OFFSET 0xa005
858
859
860#define EXIFGPSFractions(format,arg1,arg2,arg3,arg4,arg5,arg6) \
861{ \
862 size_t \
863 extent = 0; \
864 \
865 ssize_t \
866 component = 0; \
867 \
868 for ( ; component < components; component++) \
869 { \
870 if (component != 0) \
871 extent+=(size_t) FormatLocaleString(buffer+extent,MagickPathExtent- \
872 extent,", "); \
873 extent+=(size_t) FormatLocaleString(buffer+extent,MagickPathExtent- \
874 extent,format,(arg1),(arg2),(arg3),(arg4),(arg5),(arg6)); \
875 if (extent >= (MagickPathExtent-1)) \
876 extent=MagickPathExtent-1; \
877 } \
878 buffer[extent]='\0'; \
879 value=AcquireString(buffer); \
880}
881
882#define EXIFMultipleValues(format,arg) \
883{ \
884 size_t \
885 extent = 0; \
886 \
887 ssize_t \
888 component = 0; \
889 \
890 for ( ; component < components; component++) \
891 { \
892 if (component != 0) \
893 extent+=(size_t) FormatLocaleString(buffer+extent,MagickPathExtent- \
894 extent,", "); \
895 extent+=(size_t) FormatLocaleString(buffer+extent,MagickPathExtent- \
896 extent,format,arg); \
897 if (extent >= (MagickPathExtent-1)) \
898 extent=MagickPathExtent-1; \
899 } \
900 buffer[extent]='\0'; \
901 value=AcquireString(buffer); \
902}
903
904#define EXIFMultipleFractions(format,arg1,arg2) \
905{ \
906 size_t \
907 extent = 0; \
908 \
909 ssize_t \
910 component = 0; \
911 \
912 for ( ; component < components; component++) \
913 { \
914 if (component != 0) \
915 extent+=(size_t) FormatLocaleString(buffer+extent,MagickPathExtent-\
916 extent,", "); \
917 extent+=(size_t) FormatLocaleString(buffer+extent,MagickPathExtent- \
918 extent,format,(arg1),(arg2)); \
919 if (extent >= (MagickPathExtent-1)) \
920 extent=MagickPathExtent-1; \
921 } \
922 buffer[extent]='\0'; \
923 value=AcquireString(buffer); \
924}
925
926 typedef struct _DirectoryInfo
927 {
928 const unsigned char
929 *directory;
930
931 size_t
932 entry;
933
934 ssize_t
935 offset;
936 } DirectoryInfo;
937
938 typedef struct _TagInfo
939 {
940 size_t
941 tag;
942
943 const char
944 description[36];
945 } TagInfo;
946
947 static const TagInfo
948 EXIFTag[] =
949 {
950 { 0x001, "exif:InteroperabilityIndex" },
951 { 0x002, "exif:InteroperabilityVersion" },
952 { 0x100, "exif:ImageWidth" },
953 { 0x101, "exif:ImageLength" },
954 { 0x102, "exif:BitsPerSample" },
955 { 0x103, "exif:Compression" },
956 { 0x106, "exif:PhotometricInterpretation" },
957 { 0x10a, "exif:FillOrder" },
958 { 0x10d, "exif:DocumentName" },
959 { 0x10e, "exif:ImageDescription" },
960 { 0x10f, "exif:Make" },
961 { 0x110, "exif:Model" },
962 { 0x111, "exif:StripOffsets" },
963 { 0x112, "exif:Orientation" },
964 { 0x115, "exif:SamplesPerPixel" },
965 { 0x116, "exif:RowsPerStrip" },
966 { 0x117, "exif:StripByteCounts" },
967 { 0x11a, "exif:XResolution" },
968 { 0x11b, "exif:YResolution" },
969 { 0x11c, "exif:PlanarConfiguration" },
970 { 0x11d, "exif:PageName" },
971 { 0x11e, "exif:XPosition" },
972 { 0x11f, "exif:YPosition" },
973 { 0x118, "exif:MinSampleValue" },
974 { 0x119, "exif:MaxSampleValue" },
975 { 0x120, "exif:FreeOffsets" },
976 { 0x121, "exif:FreeByteCounts" },
977 { 0x122, "exif:GrayResponseUnit" },
978 { 0x123, "exif:GrayResponseCurve" },
979 { 0x124, "exif:T4Options" },
980 { 0x125, "exif:T6Options" },
981 { 0x128, "exif:ResolutionUnit" },
982 { 0x12d, "exif:TransferFunction" },
983 { 0x131, "exif:Software" },
984 { 0x132, "exif:DateTime" },
985 { 0x13b, "exif:Artist" },
986 { 0x13e, "exif:WhitePoint" },
987 { 0x13f, "exif:PrimaryChromaticities" },
988 { 0x140, "exif:ColorMap" },
989 { 0x141, "exif:HalfToneHints" },
990 { 0x142, "exif:TileWidth" },
991 { 0x143, "exif:TileLength" },
992 { 0x144, "exif:TileOffsets" },
993 { 0x145, "exif:TileByteCounts" },
994 { 0x14a, "exif:SubIFD" },
995 { 0x14c, "exif:InkSet" },
996 { 0x14d, "exif:InkNames" },
997 { 0x14e, "exif:NumberOfInks" },
998 { 0x150, "exif:DotRange" },
999 { 0x151, "exif:TargetPrinter" },
1000 { 0x152, "exif:ExtraSample" },
1001 { 0x153, "exif:SampleFormat" },
1002 { 0x154, "exif:SMinSampleValue" },
1003 { 0x155, "exif:SMaxSampleValue" },
1004 { 0x156, "exif:TransferRange" },
1005 { 0x157, "exif:ClipPath" },
1006 { 0x158, "exif:XClipPathUnits" },
1007 { 0x159, "exif:YClipPathUnits" },
1008 { 0x15a, "exif:Indexed" },
1009 { 0x15b, "exif:JPEGTables" },
1010 { 0x15f, "exif:OPIProxy" },
1011 { 0x200, "exif:JPEGProc" },
1012 { 0x201, "exif:JPEGInterchangeFormat" },
1013 { 0x202, "exif:JPEGInterchangeFormatLength" },
1014 { 0x203, "exif:JPEGRestartInterval" },
1015 { 0x205, "exif:JPEGLosslessPredictors" },
1016 { 0x206, "exif:JPEGPointTransforms" },
1017 { 0x207, "exif:JPEGQTables" },
1018 { 0x208, "exif:JPEGDCTables" },
1019 { 0x209, "exif:JPEGACTables" },
1020 { 0x211, "exif:YCbCrCoefficients" },
1021 { 0x212, "exif:YCbCrSubSampling" },
1022 { 0x213, "exif:YCbCrPositioning" },
1023 { 0x214, "exif:ReferenceBlackWhite" },
1024 { 0x2bc, "exif:ExtensibleMetadataPlatform" },
1025 { 0x301, "exif:Gamma" },
1026 { 0x302, "exif:ICCProfileDescriptor" },
1027 { 0x303, "exif:SRGBRenderingIntent" },
1028 { 0x320, "exif:ImageTitle" },
1029 { 0x5001, "exif:ResolutionXUnit" },
1030 { 0x5002, "exif:ResolutionYUnit" },
1031 { 0x5003, "exif:ResolutionXLengthUnit" },
1032 { 0x5004, "exif:ResolutionYLengthUnit" },
1033 { 0x5005, "exif:PrintFlags" },
1034 { 0x5006, "exif:PrintFlagsVersion" },
1035 { 0x5007, "exif:PrintFlagsCrop" },
1036 { 0x5008, "exif:PrintFlagsBleedWidth" },
1037 { 0x5009, "exif:PrintFlagsBleedWidthScale" },
1038 { 0x500A, "exif:HalftoneLPI" },
1039 { 0x500B, "exif:HalftoneLPIUnit" },
1040 { 0x500C, "exif:HalftoneDegree" },
1041 { 0x500D, "exif:HalftoneShape" },
1042 { 0x500E, "exif:HalftoneMisc" },
1043 { 0x500F, "exif:HalftoneScreen" },
1044 { 0x5010, "exif:JPEGQuality" },
1045 { 0x5011, "exif:GridSize" },
1046 { 0x5012, "exif:ThumbnailFormat" },
1047 { 0x5013, "exif:ThumbnailWidth" },
1048 { 0x5014, "exif:ThumbnailHeight" },
1049 { 0x5015, "exif:ThumbnailColorDepth" },
1050 { 0x5016, "exif:ThumbnailPlanes" },
1051 { 0x5017, "exif:ThumbnailRawBytes" },
1052 { 0x5018, "exif:ThumbnailSize" },
1053 { 0x5019, "exif:ThumbnailCompressedSize" },
1054 { 0x501a, "exif:ColorTransferFunction" },
1055 { 0x501b, "exif:ThumbnailData" },
1056 { 0x5020, "exif:ThumbnailImageWidth" },
1057 { 0x5021, "exif:ThumbnailImageHeight" },
1058 { 0x5022, "exif:ThumbnailBitsPerSample" },
1059 { 0x5023, "exif:ThumbnailCompression" },
1060 { 0x5024, "exif:ThumbnailPhotometricInterp" },
1061 { 0x5025, "exif:ThumbnailImageDescription" },
1062 { 0x5026, "exif:ThumbnailEquipMake" },
1063 { 0x5027, "exif:ThumbnailEquipModel" },
1064 { 0x5028, "exif:ThumbnailStripOffsets" },
1065 { 0x5029, "exif:ThumbnailOrientation" },
1066 { 0x502a, "exif:ThumbnailSamplesPerPixel" },
1067 { 0x502b, "exif:ThumbnailRowsPerStrip" },
1068 { 0x502c, "exif:ThumbnailStripBytesCount" },
1069 { 0x502d, "exif:ThumbnailResolutionX" },
1070 { 0x502e, "exif:ThumbnailResolutionY" },
1071 { 0x502f, "exif:ThumbnailPlanarConfig" },
1072 { 0x5030, "exif:ThumbnailResolutionUnit" },
1073 { 0x5031, "exif:ThumbnailTransferFunction" },
1074 { 0x5032, "exif:ThumbnailSoftwareUsed" },
1075 { 0x5033, "exif:ThumbnailDateTime" },
1076 { 0x5034, "exif:ThumbnailArtist" },
1077 { 0x5035, "exif:ThumbnailWhitePoint" },
1078 { 0x5036, "exif:ThumbnailPrimaryChromaticities" },
1079 { 0x5037, "exif:ThumbnailYCbCrCoefficients" },
1080 { 0x5038, "exif:ThumbnailYCbCrSubsampling" },
1081 { 0x5039, "exif:ThumbnailYCbCrPositioning" },
1082 { 0x503A, "exif:ThumbnailRefBlackWhite" },
1083 { 0x503B, "exif:ThumbnailCopyRight" },
1084 { 0x5090, "exif:LuminanceTable" },
1085 { 0x5091, "exif:ChrominanceTable" },
1086 { 0x5100, "exif:FrameDelay" },
1087 { 0x5101, "exif:LoopCount" },
1088 { 0x5110, "exif:PixelUnit" },
1089 { 0x5111, "exif:PixelPerUnitX" },
1090 { 0x5112, "exif:PixelPerUnitY" },
1091 { 0x5113, "exif:PaletteHistogram" },
1092 { 0x1000, "exif:RelatedImageFileFormat" },
1093 { 0x1001, "exif:RelatedImageLength" },
1094 { 0x1002, "exif:RelatedImageWidth" },
1095 { 0x800d, "exif:ImageID" },
1096 { 0x80e3, "exif:Matteing" },
1097 { 0x80e4, "exif:DataType" },
1098 { 0x80e5, "exif:ImageDepth" },
1099 { 0x80e6, "exif:TileDepth" },
1100 { 0x828d, "exif:CFARepeatPatternDim" },
1101 { 0x828e, "exif:CFAPattern2" },
1102 { 0x828f, "exif:BatteryLevel" },
1103 { 0x8298, "exif:Copyright" },
1104 { 0x829a, "exif:ExposureTime" },
1105 { 0x829d, "exif:FNumber" },
1106 { 0x83bb, "exif:IPTC/NAA" },
1107 { 0x84e3, "exif:IT8RasterPadding" },
1108 { 0x84e5, "exif:IT8ColorTable" },
1109 { 0x8649, "exif:ImageResourceInformation" },
1110 { 0x8769, "exif:ExifOffset" }, /* specs as "Exif IFD Pointer"? */
1111 { 0x8773, "exif:InterColorProfile" },
1112 { 0x8822, "exif:ExposureProgram" },
1113 { 0x8824, "exif:SpectralSensitivity" },
1114 { 0x8825, "exif:GPSInfo" }, /* specs as "GPSInfo IFD Pointer"? */
1115 { 0x8827, "exif:PhotographicSensitivity" },
1116 { 0x8828, "exif:OECF" },
1117 { 0x8829, "exif:Interlace" },
1118 { 0x882a, "exif:TimeZoneOffset" },
1119 { 0x882b, "exif:SelfTimerMode" },
1120 { 0x8830, "exif:SensitivityType" },
1121 { 0x8831, "exif:StandardOutputSensitivity" },
1122 { 0x8832, "exif:RecommendedExposureIndex" },
1123 { 0x8833, "exif:ISOSpeed" },
1124 { 0x8834, "exif:ISOSpeedLatitudeyyy" },
1125 { 0x8835, "exif:ISOSpeedLatitudezzz" },
1126 { 0x9000, "exif:ExifVersion" },
1127 { 0x9003, "exif:DateTimeOriginal" },
1128 { 0x9004, "exif:DateTimeDigitized" },
1129 { 0x9010, "exif:OffsetTime" },
1130 { 0x9011, "exif:OffsetTimeOriginal" },
1131 { 0x9012, "exif:OffsetTimeDigitized" },
1132 { 0x9101, "exif:ComponentsConfiguration" },
1133 { 0x9102, "exif:CompressedBitsPerPixel" },
1134 { 0x9201, "exif:ShutterSpeedValue" },
1135 { 0x9202, "exif:ApertureValue" },
1136 { 0x9203, "exif:BrightnessValue" },
1137 { 0x9204, "exif:ExposureBiasValue" },
1138 { 0x9205, "exif:MaxApertureValue" },
1139 { 0x9206, "exif:SubjectDistance" },
1140 { 0x9207, "exif:MeteringMode" },
1141 { 0x9208, "exif:LightSource" },
1142 { 0x9209, "exif:Flash" },
1143 { 0x920a, "exif:FocalLength" },
1144 { 0x920b, "exif:FlashEnergy" },
1145 { 0x920c, "exif:SpatialFrequencyResponse" },
1146 { 0x920d, "exif:Noise" },
1147 { 0x9214, "exif:SubjectArea" },
1148 { 0x9290, "exif:SubSecTime" },
1149 { 0x9291, "exif:SubSecTimeOriginal" },
1150 { 0x9292, "exif:SubSecTimeDigitized" },
1151 { 0x9211, "exif:ImageNumber" },
1152 { 0x9212, "exif:SecurityClassification" },
1153 { 0x9213, "exif:ImageHistory" },
1154 { 0x9214, "exif:SubjectArea" },
1155 { 0x9215, "exif:ExposureIndex" },
1156 { 0x9216, "exif:TIFF-EPStandardID" },
1157 { 0x927c, "exif:MakerNote" },
1158 { 0x9286, "exif:UserComment" },
1159 { 0x9290, "exif:SubSecTime" },
1160 { 0x9291, "exif:SubSecTimeOriginal" },
1161 { 0x9292, "exif:SubSecTimeDigitized" },
1162 { 0x9400, "exif:Temperature" },
1163 { 0x9401, "exif:Humidity" },
1164 { 0x9402, "exif:Pressure" },
1165 { 0x9403, "exif:WaterDepth" },
1166 { 0x9404, "exif:Acceleration" },
1167 { 0x9405, "exif:CameraElevationAngle" },
1168 { 0x9C9b, "exif:WinXP-Title" },
1169 { 0x9C9c, "exif:WinXP-Comments" },
1170 { 0x9C9d, "exif:WinXP-Author" },
1171 { 0x9C9e, "exif:WinXP-Keywords" },
1172 { 0x9C9f, "exif:WinXP-Subject" },
1173 { 0xa000, "exif:FlashPixVersion" },
1174 { 0xa001, "exif:ColorSpace" },
1175 { 0xa002, "exif:PixelXDimension" },
1176 { 0xa003, "exif:PixelYDimension" },
1177 { 0xa004, "exif:RelatedSoundFile" },
1178 { 0xa005, "exif:InteroperabilityOffset" },
1179 { 0xa20b, "exif:FlashEnergy" },
1180 { 0xa20c, "exif:SpatialFrequencyResponse" },
1181 { 0xa20d, "exif:Noise" },
1182 { 0xa20e, "exif:FocalPlaneXResolution" },
1183 { 0xa20f, "exif:FocalPlaneYResolution" },
1184 { 0xa210, "exif:FocalPlaneResolutionUnit" },
1185 { 0xa214, "exif:SubjectLocation" },
1186 { 0xa215, "exif:ExposureIndex" },
1187 { 0xa216, "exif:TIFF/EPStandardID" },
1188 { 0xa217, "exif:SensingMethod" },
1189 { 0xa300, "exif:FileSource" },
1190 { 0xa301, "exif:SceneType" },
1191 { 0xa302, "exif:CFAPattern" },
1192 { 0xa401, "exif:CustomRendered" },
1193 { 0xa402, "exif:ExposureMode" },
1194 { 0xa403, "exif:WhiteBalance" },
1195 { 0xa404, "exif:DigitalZoomRatio" },
1196 { 0xa405, "exif:FocalLengthIn35mmFilm" },
1197 { 0xa406, "exif:SceneCaptureType" },
1198 { 0xa407, "exif:GainControl" },
1199 { 0xa408, "exif:Contrast" },
1200 { 0xa409, "exif:Saturation" },
1201 { 0xa40a, "exif:Sharpness" },
1202 { 0xa40b, "exif:DeviceSettingDescription" },
1203 { 0xa40c, "exif:SubjectDistanceRange" },
1204 { 0xa420, "exif:ImageUniqueID" },
1205 { 0xa430, "exif:CameraOwnerName" },
1206 { 0xa431, "exif:BodySerialNumber" },
1207 { 0xa432, "exif:LensSpecification" },
1208 { 0xa433, "exif:LensMake" },
1209 { 0xa434, "exif:LensModel" },
1210 { 0xa435, "exif:LensSerialNumber" },
1211 { 0xc4a5, "exif:PrintImageMatching" },
1212 { 0xa500, "exif:Gamma" },
1213 { 0xc640, "exif:CR2Slice" },
1214 { 0x10000, "exif:GPSVersionID" },
1215 { 0x10001, "exif:GPSLatitudeRef" },
1216 { 0x10002, "exif:GPSLatitude" },
1217 { 0x10003, "exif:GPSLongitudeRef" },
1218 { 0x10004, "exif:GPSLongitude" },
1219 { 0x10005, "exif:GPSAltitudeRef" },
1220 { 0x10006, "exif:GPSAltitude" },
1221 { 0x10007, "exif:GPSTimeStamp" },
1222 { 0x10008, "exif:GPSSatellites" },
1223 { 0x10009, "exif:GPSStatus" },
1224 { 0x1000a, "exif:GPSMeasureMode" },
1225 { 0x1000b, "exif:GPSDop" },
1226 { 0x1000c, "exif:GPSSpeedRef" },
1227 { 0x1000d, "exif:GPSSpeed" },
1228 { 0x1000e, "exif:GPSTrackRef" },
1229 { 0x1000f, "exif:GPSTrack" },
1230 { 0x10010, "exif:GPSImgDirectionRef" },
1231 { 0x10011, "exif:GPSImgDirection" },
1232 { 0x10012, "exif:GPSMapDatum" },
1233 { 0x10013, "exif:GPSDestLatitudeRef" },
1234 { 0x10014, "exif:GPSDestLatitude" },
1235 { 0x10015, "exif:GPSDestLongitudeRef" },
1236 { 0x10016, "exif:GPSDestLongitude" },
1237 { 0x10017, "exif:GPSDestBearingRef" },
1238 { 0x10018, "exif:GPSDestBearing" },
1239 { 0x10019, "exif:GPSDestDistanceRef" },
1240 { 0x1001a, "exif:GPSDestDistance" },
1241 { 0x1001b, "exif:GPSProcessingMethod" },
1242 { 0x1001c, "exif:GPSAreaInformation" },
1243 { 0x1001d, "exif:GPSDateStamp" },
1244 { 0x1001e, "exif:GPSDifferential" },
1245 { 0x1001f, "exif:GPSHPositioningError" },
1246 { 0x00000, "" }
1247 }; /* http://www.cipa.jp/std/documents/e/DC-008-Translation-2016-E.pdf */
1248
1249 const StringInfo
1250 *profile;
1251
1252 const unsigned char
1253 *directory,
1254 *exif;
1255
1256 DirectoryInfo
1257 directory_stack[MaxDirectoryStack] = { { 0, 0, 0 } };
1258
1259 EndianType
1260 endian;
1261
1262 MagickBooleanType
1263 status;
1264
1265 ssize_t
1266 i;
1267
1268 size_t
1269 entry,
1270 length,
1271 number_entries,
1272 tag,
1273 tag_value;
1274
1275 SplayTreeInfo
1276 *exif_resources;
1277
1278 ssize_t
1279 all,
1280 id,
1281 level,
1282 offset,
1283 tag_offset;
1284
1285 static int
1286 tag_bytes[] = {0, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8};
1287
1288 /*
1289 If EXIF data exists, then try to parse the request for a tag.
1290 */
1291 profile=GetImageProfile(image,"exif");
1292 if (profile == (const StringInfo *) NULL)
1293 return(MagickFalse);
1294 if ((property == (const char *) NULL) || (*property == '\0'))
1295 return(MagickFalse);
1296 while (isspace((int) ((unsigned char) *property)) != 0)
1297 property++;
1298 if (strlen(property) <= 5)
1299 return(MagickFalse);
1300 all=0;
1301 tag=(~0UL);
1302 switch (*(property+5))
1303 {
1304 case '*':
1305 {
1306 /*
1307 Caller has asked for all the tags in the EXIF data.
1308 */
1309 tag=0;
1310 all=1; /* return the data in description=value format */
1311 break;
1312 }
1313 case '!':
1314 {
1315 tag=0;
1316 all=2; /* return the data in tagid=value format */
1317 break;
1318 }
1319 case '#':
1320 case '@':
1321 {
1322 int
1323 c;
1324
1325 size_t
1326 n;
1327
1328 /*
1329 Check for a hex based tag specification first.
1330 */
1331 tag=(*(property+5) == '@') ? 1UL : 0UL;
1332 property+=6;
1333 n=strlen(property);
1334 if (n != 4)
1335 return(MagickFalse);
1336 /*
1337 Parse tag specification as a hex number.
1338 */
1339 n/=4;
1340 do
1341 {
1342 for (i=(ssize_t) n-1L; i >= 0; i--)
1343 {
1344 c=(*property++);
1345 tag<<=4;
1346 if ((c >= '0') && (c <= '9'))
1347 tag|=(c-'0');
1348 else
1349 if ((c >= 'A') && (c <= 'F'))
1350 tag|=(c-('A'-10));
1351 else
1352 if ((c >= 'a') && (c <= 'f'))
1353 tag|=(c-('a'-10));
1354 else
1355 return(MagickFalse);
1356 }
1357 } while (*property != '\0');
1358 break;
1359 }
1360 default:
1361 {
1362 /*
1363 Try to match the text with a tag name instead.
1364 */
1365 for (i=0; ; i++)
1366 {
1367 if (EXIFTag[i].tag == 0)
1368 break;
1369 if (LocaleCompare(EXIFTag[i].description,property) == 0)
1370 {
1371 tag=(size_t) EXIFTag[i].tag;
1372 break;
1373 }
1374 }
1375 break;
1376 }
1377 }
1378 if (tag == (~0UL))
1379 return(MagickFalse);
1380 length=GetStringInfoLength(profile);
1381 if (length < 6)
1382 return(MagickFalse);
1383 exif=GetStringInfoDatum(profile);
1384 while (length != 0)
1385 {
1386 if (ReadPropertyByte(&exif,&length) != 0x45)
1387 continue;
1388 if (ReadPropertyByte(&exif,&length) != 0x78)
1389 continue;
1390 if (ReadPropertyByte(&exif,&length) != 0x69)
1391 continue;
1392 if (ReadPropertyByte(&exif,&length) != 0x66)
1393 continue;
1394 if (ReadPropertyByte(&exif,&length) != 0x00)
1395 continue;
1396 if (ReadPropertyByte(&exif,&length) != 0x00)
1397 continue;
1398 break;
1399 }
1400 if (length < 16)
1401 return(MagickFalse);
1402 id=(ssize_t) ReadPropertySignedShort(LSBEndian,exif);
1403 endian=LSBEndian;
1404 if (id == 0x4949)
1405 endian=LSBEndian;
1406 else
1407 if (id == 0x4D4D)
1408 endian=MSBEndian;
1409 else
1410 return(MagickFalse);
1411 if (ReadPropertyUnsignedShort(endian,exif+2) != 0x002a)
1412 return(MagickFalse);
1413 /*
1414 This the offset to the first IFD.
1415 */
1416 offset=(ssize_t) ReadPropertySignedLong(endian,exif+4);
1417 if ((offset < 0) || (size_t) offset >= length)
1418 return(MagickFalse);
1419 /*
1420 Set the pointer to the first IFD and follow it were it leads.
1421 */
1422 status=MagickFalse;
1423 directory=exif+offset;
1424 level=0;
1425 entry=0;
1426 tag_offset=0;
1427 exif_resources=NewSplayTree((int (*)(const void *,const void *)) NULL,
1428 (void *(*)(void *)) NULL,(void *(*)(void *)) NULL);
1429 do
1430 {
1431 /*
1432 If there is anything on the stack then pop it off.
1433 */
1434 if (level > 0)
1435 {
1436 level--;
1437 directory=directory_stack[level].directory;
1438 entry=directory_stack[level].entry;
1439 tag_offset=directory_stack[level].offset;
1440 }
1441 if ((directory < exif) || (directory > (exif+length-2)))
1442 break;
1443 /*
1444 Determine how many entries there are in the current IFD.
1445 */
1446 number_entries=(size_t) ReadPropertyUnsignedShort(endian,directory);
1447 for ( ; entry < number_entries; entry++)
1448 {
1449 unsigned char
1450 *p,
1451 *q;
1452
1453 size_t
1454 format;
1455
1456 ssize_t
1457 number_bytes,
1458 components;
1459
1460 q=(unsigned char *) (directory+(12*entry)+2);
1461 if (q > (exif+length-12))
1462 break; /* corrupt EXIF */
1463 if (GetValueFromSplayTree(exif_resources,q) == q)
1464 break;
1465 (void) AddValueToSplayTree(exif_resources,q,q);
1466 tag_value=(size_t) ReadPropertyUnsignedShort(endian,q)+tag_offset;
1467 format=(size_t) ReadPropertyUnsignedShort(endian,q+2);
1468 if (format >= (sizeof(tag_bytes)/sizeof(*tag_bytes)))
1469 break;
1470 if (format == 0)
1471 break; /* corrupt EXIF */
1472 components=(ssize_t) ReadPropertySignedLong(endian,q+4);
1473 if (components < 0)
1474 break; /* corrupt EXIF */
1475 number_bytes=(size_t) components*tag_bytes[format];
1476 if (number_bytes < components)
1477 break; /* prevent overflow */
1478 if (number_bytes <= 4)
1479 p=q+8;
1480 else
1481 {
1482 ssize_t
1483 dir_offset;
1484
1485 /*
1486 The directory entry contains an offset.
1487 */
1488 dir_offset=(ssize_t) ReadPropertySignedLong(endian,q+8);
1489 if ((dir_offset < 0) || (size_t) dir_offset >= length)
1490 continue;
1491 if (((size_t) dir_offset+number_bytes) < (size_t) dir_offset)
1492 continue; /* prevent overflow */
1493 if (((size_t) dir_offset+number_bytes) > length)
1494 continue;
1495 p=(unsigned char *) (exif+dir_offset);
1496 }
1497 if ((all != 0) || (tag == (size_t) tag_value))
1498 {
1499 char
1500 buffer[6*sizeof(double)+MaxTextExtent],
1501 *value;
1502
1503 if ((p < exif) || (p > (exif+length-tag_bytes[format])))
1504 break;
1505 value=(char *) NULL;
1506 *buffer='\0';
1507 switch (format)
1508 {
1509 case EXIF_FMT_BYTE:
1510 {
1511 value=(char *) NULL;
1512 if (~((size_t) number_bytes) >= 1)
1513 value=(char *) AcquireQuantumMemory((size_t) number_bytes+1UL,
1514 sizeof(*value));
1515 if (value != (char *) NULL)
1516 {
1517 for (i=0; i < (ssize_t) number_bytes; i++)
1518 {
1519 value[i]='.';
1520 if (isprint((int) p[i]) != 0)
1521 value[i]=(char) p[i];
1522 }
1523 value[i]='\0';
1524 }
1525 break;
1526 }
1527 case EXIF_FMT_SBYTE:
1528 {
1529 EXIFMultipleValues("%.20g",(double) (*(signed char *) p));
1530 break;
1531 }
1532 case EXIF_FMT_SSHORT:
1533 {
1534 EXIFMultipleValues("%hd",ReadPropertySignedShort(endian,p));
1535 break;
1536 }
1537 case EXIF_FMT_USHORT:
1538 {
1539 EXIFMultipleValues("%hu",ReadPropertyUnsignedShort(endian,p));
1540 break;
1541 }
1542 case EXIF_FMT_ULONG:
1543 {
1544 EXIFMultipleValues("%.20g",(double)
1545 ReadPropertyUnsignedLong(endian,p));
1546 break;
1547 }
1548 case EXIF_FMT_SLONG:
1549 {
1550 EXIFMultipleValues("%.20g",(double)
1551 ReadPropertySignedLong(endian,p));
1552 break;
1553 }
1554 case EXIF_FMT_URATIONAL:
1555 {
1556 if ((tag_value == GPS_LATITUDE) || (tag_value == GPS_LONGITUDE) ||
1557 (tag_value == GPS_TIMESTAMP))
1558 {
1559 components=1;
1560 EXIFGPSFractions("%.20g/%.20g,%.20g/%.20g,%.20g/%.20g",
1561 (double) ReadPropertyUnsignedLong(endian,p),
1562 (double) ReadPropertyUnsignedLong(endian,p+4),
1563 (double) ReadPropertyUnsignedLong(endian,p+8),
1564 (double) ReadPropertyUnsignedLong(endian,p+12),
1565 (double) ReadPropertyUnsignedLong(endian,p+16),
1566 (double) ReadPropertyUnsignedLong(endian,p+20));
1567 break;
1568 }
1569 EXIFMultipleFractions("%.20g/%.20g",(double)
1570 ReadPropertyUnsignedLong(endian,p),(double)
1571 ReadPropertyUnsignedLong(endian,p+4));
1572 break;
1573 }
1574 case EXIF_FMT_SRATIONAL:
1575 {
1576 EXIFMultipleFractions("%.20g/%.20g",(double)
1577 ReadPropertySignedLong(endian,p),(double)
1578 ReadPropertySignedLong(endian,p+4));
1579 break;
1580 }
1581 case EXIF_FMT_SINGLE:
1582 {
1583 EXIFMultipleValues("%.20g",(double)
1584 ReadPropertySignedLong(endian,p));
1585 break;
1586 }
1587 case EXIF_FMT_DOUBLE:
1588 {
1589 EXIFMultipleValues("%.20g",(double)
1590 ReadPropertySignedLong(endian,p));
1591 break;
1592 }
1593 case EXIF_FMT_STRING:
1594 case EXIF_FMT_UNDEFINED:
1595 default:
1596 {
1597 if ((p < exif) || (p > (exif+length-number_bytes)))
1598 break;
1599 value=(char *) NULL;
1600 if (~((size_t) number_bytes) >= 1)
1601 value=(char *) AcquireQuantumMemory((size_t) number_bytes+1UL,
1602 sizeof(*value));
1603 if (value != (char *) NULL)
1604 {
1605 ssize_t
1606 i;
1607
1608 for (i=0; i < (ssize_t) number_bytes; i++)
1609 {
1610 value[i]='.';
1611 if ((isprint((int) p[i]) != 0) || (p[i] == '\0'))
1612 value[i]=(char) p[i];
1613 }
1614 value[i]='\0';
1615 }
1616 break;
1617 }
1618 }
1619 if (value != (char *) NULL)
1620 {
1621 char
1622 *key;
1623
1624 const char
1625 *p;
1626
1627 key=AcquireString(property);
1628 switch (all)
1629 {
1630 case 1:
1631 {
1632 const char
1633 *description;
1634
1635 ssize_t
1636 i;
1637
1638 description="unknown";
1639 for (i=0; ; i++)
1640 {
1641 if (EXIFTag[i].tag == 0)
1642 break;
1643 if (EXIFTag[i].tag == tag_value)
1644 {
1645 description=EXIFTag[i].description;
1646 break;
1647 }
1648 }
1649 (void) FormatLocaleString(key,MaxTextExtent,"%s",
1650 description);
1651 if (level == 2)
1652 (void) SubstituteString(&key,"exif:","exif:thumbnail:");
1653 break;
1654 }
1655 case 2:
1656 {
1657 if (tag_value < 0x10000)
1658 (void) FormatLocaleString(key,MaxTextExtent,"#%04lx",
1659 (unsigned long) tag_value);
1660 else
1661 if (tag_value < 0x20000)
1662 (void) FormatLocaleString(key,MaxTextExtent,"@%04lx",
1663 (unsigned long) (tag_value & 0xffff));
1664 else
1665 (void) FormatLocaleString(key,MaxTextExtent,"unknown");
1666 break;
1667 }
1668 default:
1669 {
1670 if (level == 2)
1671 (void) SubstituteString(&key,"exif:","exif:thumbnail:");
1672 }
1673 }
1674 p=(const char *) NULL;
1675 if (image->properties != (void *) NULL)
1676 p=(const char *) GetValueFromSplayTree((SplayTreeInfo *)
1677 image->properties,key);
1678 if (p == (const char *) NULL)
1679 (void) SetImageProperty((Image *) image,key,value);
1680 value=DestroyString(value);
1681 key=DestroyString(key);
1682 status=MagickTrue;
1683 }
1684 }
1685 if ((tag_value == TAG_EXIF_OFFSET) ||
1686 (tag_value == TAG_INTEROP_OFFSET) || (tag_value == TAG_GPS_OFFSET))
1687 {
1688 ssize_t
1689 offset;
1690
1691 offset=(ssize_t) ReadPropertySignedLong(endian,p);
1692 if (((size_t) offset < length) && (level < (MaxDirectoryStack-2)))
1693 {
1694 ssize_t
1695 tag_offset1;
1696
1697 tag_offset1=(ssize_t) ((tag_value == TAG_GPS_OFFSET) ? 0x10000 :
1698 0);
1699 directory_stack[level].directory=directory;
1700 entry++;
1701 directory_stack[level].entry=entry;
1702 directory_stack[level].offset=tag_offset;
1703 level++;
1704 /*
1705 Check for duplicate tag.
1706 */
1707 for (i=0; i < level; i++)
1708 if (directory_stack[i].directory == (exif+tag_offset1))
1709 break;
1710 if (i < level)
1711 break; /* duplicate tag */
1712 directory_stack[level].directory=exif+offset;
1713 directory_stack[level].offset=tag_offset1;
1714 directory_stack[level].entry=0;
1715 level++;
1716 if ((directory+2+(12*number_entries)+4) > (exif+length))
1717 break;
1718 offset=(ssize_t) ReadPropertySignedLong(endian,directory+2+(12*
1719 number_entries));
1720 if ((offset != 0) && ((size_t) offset < length) &&
1721 (level < (MaxDirectoryStack-2)))
1722 {
1723 directory_stack[level].directory=exif+offset;
1724 directory_stack[level].entry=0;
1725 directory_stack[level].offset=tag_offset1;
1726 level++;
1727 }
1728 }
1729 break;
1730 }
1731 }
1732 } while (level > 0);
1733 exif_resources=DestroySplayTree(exif_resources);
1734 return(status);
1735}
1736
1737static MagickBooleanType GetICCProperty(const Image *image)
1738{
1739 const StringInfo
1740 *profile;
1741
1742 /*
1743 Return ICC profile property.
1744 */
1745 profile=GetImageProfile(image,"icc");
1746 if (profile == (StringInfo *) NULL)
1747 profile=GetImageProfile(image,"icm");
1748 if (profile == (StringInfo *) NULL)
1749 return(MagickFalse);
1750 if (GetStringInfoLength(profile) < 128)
1751 return(MagickFalse); /* minimum ICC profile length */
1752#if defined(MAGICKCORE_LCMS_DELEGATE)
1753 {
1754 cmsHPROFILE
1755 icc_profile;
1756
1757 icc_profile=cmsOpenProfileFromMem(GetStringInfoDatum(profile),
1758 (cmsUInt32Number) GetStringInfoLength(profile));
1759 if (icc_profile != (cmsHPROFILE *) NULL)
1760 {
1761#if defined(LCMS_VERSION) && (LCMS_VERSION < 2000)
1762 const char
1763 *name;
1764
1765 name=cmsTakeProductName(icc_profile);
1766 if (name != (const char *) NULL)
1767 (void) SetImageProperty((Image *) image,"icc:name",name);
1768#else
1769 StringInfo
1770 *info;
1771
1772 unsigned int
1773 extent;
1774
1775 info=AcquireStringInfo(0);
1776 extent=cmsGetProfileInfoASCII(icc_profile,cmsInfoDescription,"en","US",
1777 NULL,0);
1778 if (extent != 0)
1779 {
1780 SetStringInfoLength(info,extent+1);
1781 extent=cmsGetProfileInfoASCII(icc_profile,cmsInfoDescription,"en",
1782 "US",(char *) GetStringInfoDatum(info),extent);
1783 if (extent != 0)
1784 (void) SetImageProperty((Image *) image,"icc:description",
1785 (char *) GetStringInfoDatum(info));
1786 }
1787 extent=cmsGetProfileInfoASCII(icc_profile,cmsInfoManufacturer,"en","US",
1788 NULL,0);
1789 if (extent != 0)
1790 {
1791 SetStringInfoLength(info,extent+1);
1792 extent=cmsGetProfileInfoASCII(icc_profile,cmsInfoManufacturer,"en",
1793 "US",(char *) GetStringInfoDatum(info),extent);
1794 if (extent != 0)
1795 (void) SetImageProperty((Image *) image,"icc:manufacturer",
1796 (char *) GetStringInfoDatum(info));
1797 }
1798 extent=cmsGetProfileInfoASCII(icc_profile,cmsInfoModel,"en","US",
1799 NULL,0);
1800 if (extent != 0)
1801 {
1802 SetStringInfoLength(info,extent+1);
1803 extent=cmsGetProfileInfoASCII(icc_profile,cmsInfoModel,"en","US",
1804 (char *) GetStringInfoDatum(info),extent);
1805 if (extent != 0)
1806 (void) SetImageProperty((Image *) image,"icc:model",
1807 (char *) GetStringInfoDatum(info));
1808 }
1809 extent=cmsGetProfileInfoASCII(icc_profile,cmsInfoCopyright,"en","US",
1810 NULL,0);
1811 if (extent != 0)
1812 {
1813 SetStringInfoLength(info,extent+1);
1814 extent=cmsGetProfileInfoASCII(icc_profile,cmsInfoCopyright,"en",
1815 "US",(char *) GetStringInfoDatum(info),extent);
1816 if (extent != 0)
1817 (void) SetImageProperty((Image *) image,"icc:copyright",
1818 (char *) GetStringInfoDatum(info));
1819 }
1820 info=DestroyStringInfo(info);
1821#endif
1822 (void) cmsCloseProfile(icc_profile);
1823 }
1824 }
1825#endif
1826 return(MagickTrue);
1827}
1828
1829static MagickBooleanType SkipXMPValue(const char *value)
1830{
1831 if (value == (const char*) NULL)
1832 return(MagickTrue);
1833 while (*value != '\0')
1834 {
1835 if (isspace((int) ((unsigned char) *value)) == 0)
1836 return(MagickFalse);
1837 value++;
1838 }
1839 return(MagickTrue);
1840}
1841
1842static MagickBooleanType GetXMPProperty(const Image *image,const char *property)
1843{
1844 char
1845 *xmp_profile;
1846
1847 const char
1848 *content;
1849
1850 const StringInfo
1851 *profile;
1852
1853 ExceptionInfo
1854 *exception;
1855
1856 MagickBooleanType
1857 status;
1858
1859 const char
1860 *p;
1861
1862 XMLTreeInfo
1863 *child,
1864 *description,
1865 *node,
1866 *rdf,
1867 *xmp;
1868
1869 profile=GetImageProfile(image,"xmp");
1870 if (profile == (StringInfo *) NULL)
1871 return(MagickFalse);
1872 if (GetStringInfoLength(profile) < 17)
1873 return(MagickFalse);
1874 if ((property == (const char *) NULL) || (*property == '\0'))
1875 return(MagickFalse);
1876 xmp_profile=StringInfoToString(profile);
1877 if (xmp_profile == (char *) NULL)
1878 return(MagickFalse);
1879 for (p=xmp_profile; *p != '\0'; p++)
1880 if ((*p == '<') && (*(p+1) == 'x'))
1881 break;
1882 exception=AcquireExceptionInfo();
1883 xmp=NewXMLTree((char *) p,exception);
1884 xmp_profile=DestroyString(xmp_profile);
1885 exception=DestroyExceptionInfo(exception);
1886 if (xmp == (XMLTreeInfo *) NULL)
1887 return(MagickFalse);
1888 status=MagickFalse;
1889 rdf=GetXMLTreeChild(xmp,"rdf:RDF");
1890 if (rdf != (XMLTreeInfo *) NULL)
1891 {
1892 if (image->properties == (void *) NULL)
1893 ((Image *) image)->properties=NewSplayTree(CompareSplayTreeString,
1894 RelinquishMagickMemory,RelinquishMagickMemory);
1895 description=GetXMLTreeChild(rdf,"rdf:Description");
1896 while (description != (XMLTreeInfo *) NULL)
1897 {
1898 node=GetXMLTreeChild(description,(const char *) NULL);
1899 while (node != (XMLTreeInfo *) NULL)
1900 {
1901 char
1902 *xmp_namespace;
1903
1904 child=GetXMLTreeChild(node,(const char *) NULL);
1905 content=GetXMLTreeContent(node);
1906 if ((child == (XMLTreeInfo *) NULL) &&
1907 (SkipXMPValue(content) == MagickFalse))
1908 {
1909 xmp_namespace=ConstantString(GetXMLTreeTag(node));
1910 (void) SubstituteString(&xmp_namespace,"exif:","xmp:");
1911 (void) AddValueToSplayTree((SplayTreeInfo *) image->properties,
1912 xmp_namespace,ConstantString(content));
1913 }
1914 while (child != (XMLTreeInfo *) NULL)
1915 {
1916 content=GetXMLTreeContent(child);
1917 if (SkipXMPValue(content) == MagickFalse)
1918 {
1919 xmp_namespace=ConstantString(GetXMLTreeTag(node));
1920 (void) SubstituteString(&xmp_namespace,"exif:","xmp:");
1921 (void) AddValueToSplayTree((SplayTreeInfo *) image->properties,
1922 xmp_namespace,ConstantString(content));
1923 }
1924 child=GetXMLTreeSibling(child);
1925 }
1926 node=GetXMLTreeSibling(node);
1927 }
1928 description=GetNextXMLTreeTag(description);
1929 }
1930 }
1931 xmp=DestroyXMLTree(xmp);
1932 return(status);
1933}
1934
1935static char *TracePSClippath(const unsigned char *blob,size_t length,
1936 const size_t magick_unused(columns),const size_t magick_unused(rows))
1937{
1938 char
1939 *path,
1940 *message;
1941
1942 MagickBooleanType
1943 in_subpath;
1944
1945 PointInfo
1946 first[3],
1947 last[3],
1948 point[3];
1949
1950 ssize_t
1951 i,
1952 x;
1953
1954 ssize_t
1955 knot_count,
1956 selector,
1957 y;
1958
1959 magick_unreferenced(columns);
1960 magick_unreferenced(rows);
1961
1962 path=AcquireString((char *) NULL);
1963 if (path == (char *) NULL)
1964 return((char *) NULL);
1965 message=AcquireString((char *) NULL);
1966 (void) FormatLocaleString(message,MaxTextExtent,"/ClipImage\n");
1967 (void) ConcatenateString(&path,message);
1968 (void) FormatLocaleString(message,MaxTextExtent,"{\n");
1969 (void) ConcatenateString(&path,message);
1970 (void) FormatLocaleString(message,MaxTextExtent," /c {curveto} bind def\n");
1971 (void) ConcatenateString(&path,message);
1972 (void) FormatLocaleString(message,MaxTextExtent," /l {lineto} bind def\n");
1973 (void) ConcatenateString(&path,message);
1974 (void) FormatLocaleString(message,MaxTextExtent," /m {moveto} bind def\n");
1975 (void) ConcatenateString(&path,message);
1976 (void) FormatLocaleString(message,MaxTextExtent,
1977 " /v {currentpoint 6 2 roll curveto} bind def\n");
1978 (void) ConcatenateString(&path,message);
1979 (void) FormatLocaleString(message,MaxTextExtent,
1980 " /y {2 copy curveto} bind def\n");
1981 (void) ConcatenateString(&path,message);
1982 (void) FormatLocaleString(message,MaxTextExtent,
1983 " /z {closepath} bind def\n");
1984 (void) ConcatenateString(&path,message);
1985 (void) FormatLocaleString(message,MaxTextExtent," newpath\n");
1986 (void) ConcatenateString(&path,message);
1987 /*
1988 The clipping path format is defined in "Adobe Photoshop File
1989 Formats Specification" version 6.0 downloadable from adobe.com.
1990 */
1991 (void) memset(point,0,sizeof(point));
1992 (void) memset(first,0,sizeof(first));
1993 (void) memset(last,0,sizeof(last));
1994 knot_count=0;
1995 in_subpath=MagickFalse;
1996 while (length > 0)
1997 {
1998 selector=(ssize_t) ReadPropertyMSBShort(&blob,&length);
1999 switch (selector)
2000 {
2001 case 0:
2002 case 3:
2003 {
2004 if (knot_count != 0)
2005 {
2006 blob+=24;
2007 length-=MagickMin(24,(ssize_t) length);
2008 break;
2009 }
2010 /*
2011 Expected subpath length record.
2012 */
2013 knot_count=(ssize_t) ReadPropertyMSBShort(&blob,&length);
2014 blob+=22;
2015 length-=MagickMin(22,(ssize_t) length);
2016 break;
2017 }
2018 case 1:
2019 case 2:
2020 case 4:
2021 case 5:
2022 {
2023 if (knot_count == 0)
2024 {
2025 /*
2026 Unexpected subpath knot
2027 */
2028 blob+=24;
2029 length-=MagickMin(24,(ssize_t) length);
2030 break;
2031 }
2032 /*
2033 Add sub-path knot
2034 */
2035 for (i=0; i < 3; i++)
2036 {
2037 y=(size_t) ReadPropertyMSBLong(&blob,&length);
2038 x=(size_t) ReadPropertyMSBLong(&blob,&length);
2039 point[i].x=(double) x/4096.0/4096.0;
2040 point[i].y=1.0-(double) y/4096.0/4096.0;
2041 }
2042 if (in_subpath == MagickFalse)
2043 {
2044 (void) FormatLocaleString(message,MaxTextExtent," %g %g m\n",
2045 point[1].x,point[1].y);
2046 for (i=0; i < 3; i++)
2047 {
2048 first[i]=point[i];
2049 last[i]=point[i];
2050 }
2051 }
2052 else
2053 {
2054 /*
2055 Handle special cases when Bezier curves are used to describe
2056 corners and straight lines.
2057 */
2058 if ((last[1].x == last[2].x) && (last[1].y == last[2].y) &&
2059 (point[0].x == point[1].x) && (point[0].y == point[1].y))
2060 (void) FormatLocaleString(message,MaxTextExtent,
2061 " %g %g l\n",point[1].x,point[1].y);
2062 else
2063 if ((last[1].x == last[2].x) && (last[1].y == last[2].y))
2064 (void) FormatLocaleString(message,MaxTextExtent,
2065 " %g %g %g %g v\n",point[0].x,point[0].y,
2066 point[1].x,point[1].y);
2067 else
2068 if ((point[0].x == point[1].x) && (point[0].y == point[1].y))
2069 (void) FormatLocaleString(message,MaxTextExtent,
2070 " %g %g %g %g y\n",last[2].x,last[2].y,
2071 point[1].x,point[1].y);
2072 else
2073 (void) FormatLocaleString(message,MaxTextExtent,
2074 " %g %g %g %g %g %g c\n",last[2].x,
2075 last[2].y,point[0].x,point[0].y,point[1].x,point[1].y);
2076 for (i=0; i < 3; i++)
2077 last[i]=point[i];
2078 }
2079 (void) ConcatenateString(&path,message);
2080 in_subpath=MagickTrue;
2081 knot_count--;
2082 /*
2083 Close the subpath if there are no more knots.
2084 */
2085 if (knot_count == 0)
2086 {
2087 /*
2088 Same special handling as above except we compare to the
2089 first point in the path and close the path.
2090 */
2091 if ((last[1].x == last[2].x) && (last[1].y == last[2].y) &&
2092 (first[0].x == first[1].x) && (first[0].y == first[1].y))
2093 (void) FormatLocaleString(message,MaxTextExtent,
2094 " %g %g l z\n",first[1].x,first[1].y);
2095 else
2096 if ((last[1].x == last[2].x) && (last[1].y == last[2].y))
2097 (void) FormatLocaleString(message,MaxTextExtent,
2098 " %g %g %g %g v z\n",first[0].x,first[0].y,
2099 first[1].x,first[1].y);
2100 else
2101 if ((first[0].x == first[1].x) && (first[0].y == first[1].y))
2102 (void) FormatLocaleString(message,MaxTextExtent,
2103 " %g %g %g %g y z\n",last[2].x,last[2].y,
2104 first[1].x,first[1].y);
2105 else
2106 (void) FormatLocaleString(message,MaxTextExtent,
2107 " %g %g %g %g %g %g c z\n",last[2].x,
2108 last[2].y,first[0].x,first[0].y,first[1].x,first[1].y);
2109 (void) ConcatenateString(&path,message);
2110 in_subpath=MagickFalse;
2111 }
2112 break;
2113 }
2114 case 6:
2115 case 7:
2116 case 8:
2117 default:
2118 {
2119 blob+=24;
2120 length-=MagickMin(24,(ssize_t) length);
2121 break;
2122 }
2123 }
2124 }
2125 /*
2126 Returns an empty PS path if the path has no knots.
2127 */
2128 (void) FormatLocaleString(message,MaxTextExtent," eoclip\n");
2129 (void) ConcatenateString(&path,message);
2130 (void) FormatLocaleString(message,MaxTextExtent,"} bind def");
2131 (void) ConcatenateString(&path,message);
2132 message=DestroyString(message);
2133 return(path);
2134}
2135
2136static inline void TraceBezierCurve(char *message,PointInfo *last,
2137 PointInfo *point)
2138{
2139 /*
2140 Handle special cases when Bezier curves are used to describe
2141 corners and straight lines.
2142 */
2143 if (((last+1)->x == (last+2)->x) && ((last+1)->y == (last+2)->y) &&
2144 (point->x == (point+1)->x) && (point->y == (point+1)->y))
2145 (void) FormatLocaleString(message,MagickPathExtent,
2146 "L %g %g\n",point[1].x,point[1].y);
2147 else
2148 (void) FormatLocaleString(message,MagickPathExtent,"C %g %g %g %g %g %g\n",
2149 (last+2)->x,(last+2)->y,point->x,point->y,(point+1)->x,(point+1)->y);
2150}
2151
2152static char *TraceSVGClippath(const unsigned char *blob,size_t length,
2153 const size_t columns,const size_t rows)
2154{
2155 char
2156 *path,
2157 *message;
2158
2159 MagickBooleanType
2160 in_subpath;
2161
2162 PointInfo
2163 first[3],
2164 last[3],
2165 point[3];
2166
2167 ssize_t
2168 i;
2169
2170 ssize_t
2171 knot_count,
2172 selector,
2173 x,
2174 y;
2175
2176 path=AcquireString((char *) NULL);
2177 if (path == (char *) NULL)
2178 return((char *) NULL);
2179 message=AcquireString((char *) NULL);
2180 (void) FormatLocaleString(message,MaxTextExtent,(
2181 "<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>\n"
2182 "<svg xmlns=\"http://www.w3.org/2000/svg\""
2183 " width=\"%.20g\" height=\"%.20g\">\n"
2184 "<g>\n"
2185 "<path fill-rule=\"evenodd\" style=\"fill:#000000;stroke:#000000;"
2186 "stroke-width:0;stroke-antialiasing:false\" d=\"\n"),(double) columns,
2187 (double) rows);
2188 (void) ConcatenateString(&path,message);
2189 (void) memset(point,0,sizeof(point));
2190 (void) memset(first,0,sizeof(first));
2191 (void) memset(last,0,sizeof(last));
2192 knot_count=0;
2193 in_subpath=MagickFalse;
2194 while (length != 0)
2195 {
2196 selector=(ssize_t) ReadPropertyMSBShort(&blob,&length);
2197 switch (selector)
2198 {
2199 case 0:
2200 case 3:
2201 {
2202 if (knot_count != 0)
2203 {
2204 blob+=24;
2205 length-=MagickMin(24,(ssize_t) length);
2206 break;
2207 }
2208 /*
2209 Expected subpath length record.
2210 */
2211 knot_count=(ssize_t) ReadPropertyMSBShort(&blob,&length);
2212 blob+=22;
2213 length-=MagickMin(22,(ssize_t) length);
2214 break;
2215 }
2216 case 1:
2217 case 2:
2218 case 4:
2219 case 5:
2220 {
2221 if (knot_count == 0)
2222 {
2223 /*
2224 Unexpected subpath knot.
2225 */
2226 blob+=24;
2227 length-=MagickMin(24,(ssize_t) length);
2228 break;
2229 }
2230 /*
2231 Add sub-path knot.
2232 */
2233 for (i=0; i < 3; i++)
2234 {
2235 y=(ssize_t) ReadPropertyMSBLong(&blob,&length);
2236 x=(ssize_t) ReadPropertyMSBLong(&blob,&length);
2237 point[i].x=(double) x*columns/4096.0/4096.0;
2238 point[i].y=(double) y*rows/4096.0/4096.0;
2239 }
2240 if (in_subpath == MagickFalse)
2241 {
2242 (void) FormatLocaleString(message,MaxTextExtent,"M %g %g\n",
2243 point[1].x,point[1].y);
2244 for (i=0; i < 3; i++)
2245 {
2246 first[i]=point[i];
2247 last[i]=point[i];
2248 }
2249 }
2250 else
2251 {
2252 TraceBezierCurve(message,last,point);
2253 for (i=0; i < 3; i++)
2254 last[i]=point[i];
2255 }
2256 (void) ConcatenateString(&path,message);
2257 in_subpath=MagickTrue;
2258 knot_count--;
2259 /*
2260 Close the subpath if there are no more knots.
2261 */
2262 if (knot_count == 0)
2263 {
2264 TraceBezierCurve(message,last,first);
2265 (void) ConcatenateString(&path,message);
2266 in_subpath=MagickFalse;
2267 }
2268 break;
2269 }
2270 case 6:
2271 case 7:
2272 case 8:
2273 default:
2274 {
2275 blob+=24;
2276 length-=MagickMin(24,(ssize_t) length);
2277 break;
2278 }
2279 }
2280 }
2281 /*
2282 Return an empty SVG image if the path does not have knots.
2283 */
2284 (void) ConcatenateString(&path,"\"/>\n</g>\n</svg>\n");
2285 message=DestroyString(message);
2286 return(path);
2287}
2288
2289MagickExport const char *GetImageProperty(const Image *image,
2290 const char *property)
2291{
2292 double
2293 alpha;
2294
2295 ExceptionInfo
2296 *exception;
2297
2298 FxInfo
2299 *fx_info;
2300
2301 MagickStatusType
2302 status;
2303
2304 const char
2305 *p;
2306
2307 assert(image != (Image *) NULL);
2308 assert(image->signature == MagickCoreSignature);
2309 if (IsEventLogging() != MagickFalse)
2310 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2311 p=(const char *) NULL;
2312 if (image->properties != (void *) NULL)
2313 {
2314 if (property == (const char *) NULL)
2315 {
2316 ResetSplayTreeIterator((SplayTreeInfo *) image->properties);
2317 p=(const char *) GetNextValueInSplayTree((SplayTreeInfo *)
2318 image->properties);
2319 return(p);
2320 }
2321 if (LocaleNCompare("fx:",property,3) != 0) /* NOT fx: !!!! */
2322 {
2323 p=(const char *) GetValueFromSplayTree((SplayTreeInfo *)
2324 image->properties,property);
2325 if (p != (const char *) NULL)
2326 return(p);
2327 }
2328 }
2329 if ((property == (const char *) NULL) ||
2330 (strchr(property,':') == (char *) NULL))
2331 return(p);
2332 exception=(&((Image *) image)->exception);
2333 switch (*property)
2334 {
2335 case '8':
2336 {
2337 if (LocaleNCompare("8bim:",property,5) == 0)
2338 {
2339 (void) Get8BIMProperty(image,property);
2340 break;
2341 }
2342 break;
2343 }
2344 case 'E':
2345 case 'e':
2346 {
2347 if (LocaleNCompare("exif:",property,5) == 0)
2348 {
2349 (void) GetEXIFProperty(image,property);
2350 break;
2351 }
2352 break;
2353 }
2354 case 'F':
2355 case 'f':
2356 {
2357 if (LocaleNCompare("fx:",property,3) == 0)
2358 {
2359 if ((image->columns == 0) || (image->rows == 0))
2360 break;
2361 fx_info=AcquireFxInfo(image,property+3);
2362 status=FxEvaluateChannelExpression(fx_info,DefaultChannels,0,0,&alpha,
2363 exception);
2364 fx_info=DestroyFxInfo(fx_info);
2365 if (status != MagickFalse)
2366 {
2367 char
2368 value[MaxTextExtent];
2369
2370 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
2371 GetMagickPrecision(),(double) alpha);
2372 (void) SetImageProperty((Image *) image,property,value);
2373 }
2374 break;
2375 }
2376 break;
2377 }
2378 case 'H':
2379 case 'h':
2380 {
2381 if (LocaleNCompare("hex:",property,4) == 0)
2382 {
2383 MagickPixelPacket
2384 pixel;
2385
2386 if ((image->columns == 0) || (image->rows == 0))
2387 break;
2388 GetMagickPixelPacket(image,&pixel);
2389 fx_info=AcquireFxInfo(image,property+4);
2390 status=FxEvaluateChannelExpression(fx_info,RedChannel,0,0,&alpha,
2391 exception);
2392 pixel.red=(MagickRealType) QuantumRange*alpha;
2393 status&=FxEvaluateChannelExpression(fx_info,GreenChannel,0,0,&alpha,
2394 exception);
2395 pixel.green=(MagickRealType) QuantumRange*alpha;
2396 status&=FxEvaluateChannelExpression(fx_info,BlueChannel,0,0,&alpha,
2397 exception);
2398 pixel.blue=(MagickRealType) QuantumRange*alpha;
2399 status&=FxEvaluateChannelExpression(fx_info,OpacityChannel,0,0,&alpha,
2400 exception);
2401 pixel.opacity=(MagickRealType) QuantumRange*(1.0-alpha);
2402 if (image->colorspace == CMYKColorspace)
2403 {
2404 status&=FxEvaluateChannelExpression(fx_info,BlackChannel,0,0,
2405 &alpha,exception);
2406 pixel.index=(MagickRealType) QuantumRange*alpha;
2407 }
2408 fx_info=DestroyFxInfo(fx_info);
2409 if (status != MagickFalse)
2410 {
2411 char
2412 hex[MaxTextExtent];
2413
2414 GetColorTuple(&pixel,MagickTrue,hex);
2415 (void) SetImageProperty((Image *) image,property,hex+1);
2416 }
2417 break;
2418 }
2419 break;
2420 }
2421 case 'I':
2422 case 'i':
2423 {
2424 if ((LocaleNCompare("icc:",property,4) == 0) ||
2425 (LocaleNCompare("icm:",property,4) == 0))
2426 {
2427 (void) GetICCProperty(image);
2428 break;
2429 }
2430 if (LocaleNCompare("iptc:",property,5) == 0)
2431 {
2432 (void) GetIPTCProperty(image,property);
2433 break;
2434 }
2435 break;
2436 }
2437 case 'P':
2438 case 'p':
2439 {
2440 if (LocaleNCompare("pixel:",property,6) == 0)
2441 {
2442 MagickPixelPacket
2443 pixel;
2444
2445 GetMagickPixelPacket(image,&pixel);
2446 fx_info=AcquireFxInfo(image,property+6);
2447 status=FxEvaluateChannelExpression(fx_info,RedChannel,0,0,&alpha,
2448 exception);
2449 pixel.red=(MagickRealType) QuantumRange*alpha;
2450 status&=FxEvaluateChannelExpression(fx_info,GreenChannel,0,0,&alpha,
2451 exception);
2452 pixel.green=(MagickRealType) QuantumRange*alpha;
2453 status&=FxEvaluateChannelExpression(fx_info,BlueChannel,0,0,&alpha,
2454 exception);
2455 pixel.blue=(MagickRealType) QuantumRange*alpha;
2456 status&=FxEvaluateChannelExpression(fx_info,OpacityChannel,0,0,&alpha,
2457 exception);
2458 pixel.opacity=(MagickRealType) QuantumRange*(1.0-alpha);
2459 if (image->colorspace == CMYKColorspace)
2460 {
2461 status&=FxEvaluateChannelExpression(fx_info,BlackChannel,0,0,
2462 &alpha,exception);
2463 pixel.index=(MagickRealType) QuantumRange*alpha;
2464 }
2465 fx_info=DestroyFxInfo(fx_info);
2466 if (status != MagickFalse)
2467 {
2468 char
2469 name[MaxTextExtent];
2470
2471 const char
2472 *value;
2473
2474 GetColorTuple(&pixel,MagickFalse,name);
2475 value=GetImageArtifact(image,"pixel:compliance");
2476 if (value != (char *) NULL)
2477 {
2478 ComplianceType compliance=(ComplianceType) ParseCommandOption(
2479 MagickComplianceOptions,MagickFalse,value);
2480 (void) QueryMagickColorname(image,&pixel,compliance,name,
2481 exception);
2482 }
2483 (void) SetImageProperty((Image *) image,property,name);
2484 }
2485 break;
2486 }
2487 break;
2488 }
2489 case 'X':
2490 case 'x':
2491 {
2492 if (LocaleNCompare("xmp:",property,4) == 0)
2493 {
2494 (void) GetXMPProperty(image,property);
2495 break;
2496 }
2497 break;
2498 }
2499 default:
2500 break;
2501 }
2502 if (image->properties != (void *) NULL)
2503 {
2504 p=(const char *) GetValueFromSplayTree((SplayTreeInfo *)
2505 image->properties,property);
2506 return(p);
2507 }
2508 return((const char *) NULL);
2509}
2510␌
2511/*
2512%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2513% %
2514% %
2515% %
2516+ G e t M a g i c k P r o p e r t y %
2517% %
2518% %
2519% %
2520%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2521%
2522% GetMagickProperty() gets attributes or calculated values that is associated
2523% with a fixed known property name, or single letter property:
2524%
2525% \n newline
2526% \r carriage return
2527% < less-than character.
2528% > greater-than character.
2529% & ampersand character.
2530% %% a percent sign
2531% %b file size of image read in
2532% %c comment meta-data property
2533% %d directory component of path
2534% %e filename extension or suffix
2535% %f filename (including suffix)
2536% %g layer canvas page geometry (equivalent to "%Wx%H%X%Y")
2537% %h current image height in pixels
2538% %i image filename (note: becomes output filename for "info:")
2539% %k CALCULATED: number of unique colors
2540% %l label meta-data property
2541% %m image file format (file magic)
2542% %n number of images in current image sequence
2543% %o output filename (used for delegates)
2544% %p index of image in current image list
2545% %q quantum depth (compile-time constant)
2546% %r image class and colorspace
2547% %s scene number (from input unless re-assigned)
2548% %t filename without directory or extension (suffix)
2549% %u unique temporary filename (used for delegates)
2550% %w current width in pixels
2551% %x x resolution (density)
2552% %y y resolution (density)
2553% %z image depth (as read in unless modified, image save depth)
2554% %A image transparency channel enabled (true/false)
2555% %B file size of image in bytes
2556% %C image compression type
2557% %D image GIF dispose method
2558% %G original image size (%wx%h; before any resizes)
2559% %H page (canvas) height
2560% %M Magick filename (original file exactly as given, including read mods)
2561% %O page (canvas) offset ( = %X%Y )
2562% %P page (canvas) size ( = %Wx%H )
2563% %Q image compression quality ( 0 = default )
2564% %S ?? scenes ??
2565% %T image time delay (in centi-seconds)
2566% %U image resolution units
2567% %W page (canvas) width
2568% %X page (canvas) x offset (including sign)
2569% %Y page (canvas) y offset (including sign)
2570% %Z unique filename (used for delegates)
2571% %@ CALCULATED: trim bounding box (without actually trimming)
2572% %# CALCULATED: 'signature' hash of image values
2573%
2574% This does not return, special profile or property expressions. Nor does it
2575% return free-form property strings, unless referenced by a single letter
2576% property name.
2577%
2578% The returned string is stored as the image artifact 'get-property' (not as
2579% another property), and as such should not be freed. Later calls however
2580% will overwrite this value so if needed for a longer period a copy should be
2581% made. This artifact can be deleted when no longer required.
2582%
2583% The format of the GetMagickProperty method is:
2584%
2585% const char *GetMagickProperty(const ImageInfo *image_info,Image *image,
2586% const char *property)
2587%
2588% A description of each parameter follows:
2589%
2590% o image_info: the image info.
2591%
2592% o image: the image.
2593%
2594% o key: the key.
2595%
2596*/
2597static const char *GetMagickPropertyLetter(const ImageInfo *image_info,
2598 Image *image,const char letter)
2599{
2600#define WarnNoImageInfoReturn(format,arg) \
2601 if (image_info == (ImageInfo *) NULL ) { \
2602 (void) ThrowMagickException(&image->exception,GetMagickModule(), \
2603 OptionWarning,"NoImageInfoForProperty",format,arg); \
2604 return((const char *) NULL); \
2605 }
2606
2607 char
2608 value[MaxTextExtent];
2609
2610 const char
2611 *string;
2612
2613 assert(image != (Image *) NULL);
2614 assert(image->signature == MagickCoreSignature);
2615 if (IsEventLogging() != MagickFalse)
2616 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2617 *value='\0';
2618 string=(char *) NULL;
2619 switch (letter)
2620 {
2621 case 'b':
2622 {
2623 /*
2624 Image size read in - in bytes.
2625 */
2626 (void) FormatMagickSize(image->extent,MagickFalse,value);
2627 if (image->extent == 0)
2628 (void) FormatMagickSize(GetBlobSize(image),MagickFalse,value);
2629 break;
2630 }
2631 case 'c':
2632 {
2633 /*
2634 Image comment property - empty string by default.
2635 */
2636 string=GetImageProperty(image,"comment");
2637 if (string == (const char *) NULL)
2638 string="";
2639 break;
2640 }
2641 case 'd':
2642 {
2643 /*
2644 Directory component of filename.
2645 */
2646 GetPathComponent(image->magick_filename,HeadPath,value);
2647 if (*value == '\0')
2648 string="";
2649 break;
2650 }
2651 case 'e':
2652 {
2653 /*
2654 Filename extension (suffix) of image file.
2655 */
2656 GetPathComponent(image->magick_filename,ExtensionPath,value);
2657 if (*value == '\0')
2658 string="";
2659 break;
2660 }
2661 case 'f':
2662 {
2663 /*
2664 Filename without directory component.
2665 */
2666 GetPathComponent(image->magick_filename,TailPath,value);
2667 if (*value == '\0')
2668 string="";
2669 break;
2670 }
2671 case 'g':
2672 {
2673 /*
2674 Image geometry, canvas and offset %Wx%H+%X+%Y.
2675 */
2676 (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g%+.20g%+.20g",
2677 (double) image->page.width,(double) image->page.height,
2678 (double) image->page.x,(double) image->page.y);
2679 break;
2680 }
2681 case 'h':
2682 {
2683 /*
2684 Image height (current).
2685 */
2686 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2687 (image->rows != 0 ? image->rows : image->magick_rows));
2688 break;
2689 }
2690 case 'i':
2691 {
2692 /*
2693 Filename last used for image (read or write).
2694 */
2695 string=image->filename;
2696 break;
2697 }
2698 case 'k':
2699 {
2700 /*
2701 Number of unique colors.
2702 */
2703 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2704 GetNumberColors(image,(FILE *) NULL,&image->exception));
2705 break;
2706 }
2707 case 'l':
2708 {
2709 /*
2710 Image label property - empty string by default.
2711 */
2712 string=GetImageProperty(image,"label");
2713 if (string == (const char *) NULL)
2714 string="";
2715 break;
2716 }
2717 case 'm':
2718 {
2719 /*
2720 Image format (file magick).
2721 */
2722 string=image->magick;
2723 break;
2724 }
2725 case 'n':
2726 {
2727 /*
2728 Number of images in the list.
2729 */
2730 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2731 GetImageListLength(image));
2732 break;
2733 }
2734 case 'o':
2735 {
2736 /*
2737 Output Filename - for delegate use only
2738 */
2739 WarnNoImageInfoReturn("\"%%%c\"",letter);
2740 string=image_info->filename;
2741 break;
2742 }
2743 case 'p':
2744 {
2745 /*
2746 Image index in current image list -- As 'n' OBSOLETE.
2747 */
2748 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2749 GetImageIndexInList(image));
2750 break;
2751 }
2752 case 'q':
2753 {
2754 /*
2755 Quantum depth of image in memory.
2756 */
2757 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2758 MAGICKCORE_QUANTUM_DEPTH);
2759 break;
2760 }
2761 case 'r':
2762 {
2763 ColorspaceType
2764 colorspace;
2765
2766 /*
2767 Image storage class and colorspace.
2768 */
2769 colorspace=image->colorspace;
2770 if ((image->columns != 0) && (image->rows != 0) &&
2771 (SetImageGray(image,&image->exception) != MagickFalse))
2772 colorspace=GRAYColorspace;
2773 (void) FormatLocaleString(value,MaxTextExtent,"%s %s %s",
2774 CommandOptionToMnemonic(MagickClassOptions,(ssize_t)
2775 image->storage_class),CommandOptionToMnemonic(MagickColorspaceOptions,
2776 (ssize_t) colorspace),image->matte != MagickFalse ? "Matte" : "" );
2777 break;
2778 }
2779 case 's':
2780 {
2781 /*
2782 Image scene number.
2783 */
2784 WarnNoImageInfoReturn("\"%%%c\"",letter);
2785 if (image_info->number_scenes != 0)
2786 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2787 image_info->scene);
2788 else
2789 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2790 image->scene);
2791 break;
2792 }
2793 case 't':
2794 {
2795 /*
2796 Base filename without directory or extension.
2797 */
2798 GetPathComponent(image->magick_filename,BasePath,value);
2799 if (*value == '\0')
2800 string="";
2801 break;
2802 }
2803 case 'u':
2804 {
2805 /*
2806 Unique filename.
2807 */
2808 WarnNoImageInfoReturn("\"%%%c\"",letter);
2809 string=image_info->unique;
2810 break;
2811 }
2812 case 'w':
2813 {
2814 /*
2815 Image width (current).
2816 */
2817 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2818 (image->columns != 0 ? image->columns : image->magick_columns));
2819 break;
2820 }
2821 case 'x':
2822 {
2823 /*
2824 Image horizontal resolution.
2825 */
2826 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
2827 fabs(image->x_resolution) > MagickEpsilon ? image->x_resolution :
2828 image->units == PixelsPerCentimeterResolution ? DefaultResolution/2.54 :
2829 DefaultResolution);
2830 break;
2831 }
2832 case 'y':
2833 {
2834 /*
2835 Image vertical resolution.
2836 */
2837 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
2838 fabs(image->y_resolution) > MagickEpsilon ? image->y_resolution :
2839 image->units == PixelsPerCentimeterResolution ? DefaultResolution/2.54 :
2840 DefaultResolution);
2841 break;
2842 }
2843 case 'z':
2844 {
2845 /*
2846 Image depth.
2847 */
2848 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2849 image->depth);
2850 break;
2851 }
2852 case 'A':
2853 {
2854 /*
2855 Image alpha channel.
2856 */
2857 (void) FormatLocaleString(value,MaxTextExtent,"%s",
2858 CommandOptionToMnemonic(MagickBooleanOptions,(ssize_t) image->matte));
2859 break;
2860 }
2861 case 'B':
2862 {
2863 /*
2864 Image size read in - in bytes.
2865 */
2866 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2867 image->extent);
2868 if (image->extent == 0)
2869 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2870 GetBlobSize(image));
2871 break;
2872 }
2873 case 'C':
2874 {
2875 /*
2876 Image compression method.
2877 */
2878 (void) FormatLocaleString(value,MaxTextExtent,"%s",
2879 CommandOptionToMnemonic(MagickCompressOptions,(ssize_t)
2880 image->compression));
2881 break;
2882 }
2883 case 'D':
2884 {
2885 /*
2886 Image dispose method.
2887 */
2888 (void) FormatLocaleString(value,MaxTextExtent,"%s",
2889 CommandOptionToMnemonic(MagickDisposeOptions,(ssize_t) image->dispose));
2890 break;
2891 }
2892 case 'F':
2893 {
2894 const char
2895 *q;
2896
2897 char
2898 *p;
2899
2900 static const char
2901 allowlist[] =
2902 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 "
2903 "$-_.+!*'(),{}|\\^~[]`\"><#%;/?:@&=";
2904
2905 /*
2906 Magick filename (sanitized) - filename given incl. coder & read mods.
2907 */
2908 (void) CopyMagickString(value,image->magick_filename,MaxTextExtent);
2909 p=value;
2910 q=value+strlen(value);
2911 for (p+=strspn(p,allowlist); p != q; p+=(ptrdiff_t) strspn(p,allowlist))
2912 *p='_';
2913 break;
2914 }
2915 case 'G':
2916 {
2917 /*
2918 Image size as geometry = "%wx%h".
2919 */
2920 (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g",(double)
2921 image->magick_columns,(double) image->magick_rows);
2922 break;
2923 }
2924 case 'H':
2925 {
2926 /*
2927 Layer canvas height.
2928 */
2929 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2930 image->page.height);
2931 break;
2932 }
2933 case 'M':
2934 {
2935 /*
2936 Magick filename - filename given incl. coder & read mods.
2937 */
2938 string=image->magick_filename;
2939 break;
2940 }
2941 case 'N': /* Number of images in the list. */
2942 {
2943 if ((image != (Image *) NULL) && (image->next == (Image *) NULL))
2944 (void) FormatLocaleString(value,MagickPathExtent,"%.20g\n",(double)
2945 GetImageListLength(image));
2946 else
2947 string="";
2948 break;
2949 }
2950 case 'O':
2951 {
2952 /*
2953 Layer canvas offset with sign = "+%X+%Y".
2954 */
2955 (void) FormatLocaleString(value,MaxTextExtent,"%+ld%+ld",(long)
2956 image->page.x,(long) image->page.y);
2957 break;
2958 }
2959 case 'P':
2960 {
2961 /*
2962 Layer canvas page size = "%Wx%H".
2963 */
2964 (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g",(double)
2965 image->page.width,(double) image->page.height);
2966 break;
2967 }
2968 case 'Q':
2969 {
2970 /*
2971 Image compression quality.
2972 */
2973 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2974 (image->quality == 0 ? 92 : image->quality));
2975 break;
2976 }
2977 case 'S':
2978 {
2979 /*
2980 Image scenes.
2981 */
2982 WarnNoImageInfoReturn("\"%%%c\"",letter);
2983 if (image_info->number_scenes == 0)
2984 string="2147483647";
2985 else
2986 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2987 image_info->scene+image_info->number_scenes);
2988 break;
2989 }
2990 case 'T':
2991 {
2992 /*
2993 Image time delay for animations.
2994 */
2995 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2996 image->delay);
2997 break;
2998 }
2999 case 'U':
3000 {
3001 /*
3002 Image resolution units.
3003 */
3004 (void) FormatLocaleString(value,MaxTextExtent,"%s",
3005 CommandOptionToMnemonic(MagickResolutionOptions,(ssize_t)
3006 image->units));
3007 break;
3008 }
3009 case 'W':
3010 {
3011 /*
3012 Layer canvas width.
3013 */
3014 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3015 image->page.width);
3016 break;
3017 }
3018 case 'X':
3019 {
3020 /*
3021 Layer canvas X offset.
3022 */
3023 (void) FormatLocaleString(value,MaxTextExtent,"%+.20g",(double)
3024 image->page.x);
3025 break;
3026 }
3027 case 'Y':
3028 {
3029 /*
3030 Layer canvas Y offset.
3031 */
3032 (void) FormatLocaleString(value,MaxTextExtent,"%+.20g",(double)
3033 image->page.y);
3034 break;
3035 }
3036 case 'Z':
3037 {
3038 /*
3039 Zero filename.
3040 */
3041 WarnNoImageInfoReturn("\"%%%c\"",letter);
3042 string=image_info->zero;
3043 break;
3044 }
3045 case '@':
3046 {
3047 RectangleInfo
3048 page;
3049
3050 /*
3051 Image bounding box.
3052 */
3053 page=GetImageBoundingBox(image,&image->exception);
3054 (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g%+.20g%+.20g",
3055 (double) page.width,(double) page.height,(double) page.x,(double)
3056 page.y);
3057 break;
3058 }
3059 case '#':
3060 {
3061 /*
3062 Image signature.
3063 */
3064 if ((image->columns != 0) && (image->rows != 0))
3065 (void) SignatureImage(image);
3066 string=GetImageProperty(image,"signature");
3067 break;
3068 }
3069 case '%':
3070 {
3071 /*
3072 Percent escaped.
3073 */
3074 string="%";
3075 break;
3076 }
3077 }
3078 if (*value != '\0')
3079 string=value;
3080 if (string != (char *) NULL)
3081 {
3082 (void) SetImageArtifact(image,"get-property",string);
3083 return(GetImageArtifact(image,"get-property"));
3084 }
3085 return((char *) NULL);
3086}
3087
3088MagickExport const char *GetMagickProperty(const ImageInfo *image_info,
3089 Image *image,const char *property)
3090{
3091 char
3092 value[MaxTextExtent];
3093
3094 const char
3095 *string;
3096
3097 assert(property != (const char *) NULL);
3098 assert(property[0] != '\0');
3099 if (property[1] == '\0') /* single letter property request */
3100 return(GetMagickPropertyLetter(image_info,image,*property));
3101 *value='\0'; /* formatted string */
3102 string=(char *) NULL; /* constant string reference */
3103 switch (*property)
3104 {
3105 case 'b':
3106 {
3107 if ((LocaleCompare("base",property) == 0) ||
3108 (LocaleCompare("basename",property) == 0) )
3109 {
3110 GetPathComponent(image->magick_filename,BasePath,value);
3111 break;
3112 }
3113 if (LocaleCompare("bit-depth",property) == 0)
3114 {
3115 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3116 GetImageDepth(image,&image->exception));
3117 break;
3118 }
3119 if (LocaleCompare("bounding-box",property) == 0)
3120 {
3121 RectangleInfo
3122 geometry;
3123
3124 geometry=GetImageBoundingBox(image,&image->exception);
3125 (void) FormatLocaleString(value,MagickPathExtent,"%g,%g %g,%g\n",
3126 (double) geometry.x,(double) geometry.y,
3127 (double) geometry.x+geometry.width,
3128 (double) geometry.y+geometry.height);
3129 break;
3130 }
3131 break;
3132 }
3133 case 'c':
3134 {
3135 if (LocaleCompare("channels",property) == 0)
3136 {
3137 /*
3138 Image channels.
3139 */
3140 (void) FormatLocaleString(value,MaxTextExtent,"%s",
3141 CommandOptionToMnemonic(MagickColorspaceOptions,(ssize_t)
3142 image->colorspace));
3143 LocaleLower(value);
3144 if (image->matte != MagickFalse)
3145 (void) ConcatenateMagickString(value,"a",MaxTextExtent);
3146 break;
3147 }
3148 if (LocaleCompare("colors",property) == 0)
3149 {
3150 image->colors=GetNumberColors(image,(FILE *) NULL,&image->exception);
3151 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3152 image->colors);
3153 break;
3154 }
3155 if (LocaleCompare("colorspace",property) == 0)
3156 {
3157 string=CommandOptionToMnemonic(MagickColorspaceOptions,(ssize_t)
3158 image->colorspace);
3159 break;
3160 }
3161 if (LocaleCompare("compose",property) == 0)
3162 {
3163 string=CommandOptionToMnemonic(MagickComposeOptions,(ssize_t)
3164 image->compose);
3165 break;
3166 }
3167 if (LocaleCompare("compression",property) == 0)
3168 {
3169 string=CommandOptionToMnemonic(MagickCompressOptions,(ssize_t)
3170 image->compression);
3171 break;
3172 }
3173 if (LocaleCompare("copyright",property) == 0)
3174 {
3175 (void) CopyMagickString(value,GetMagickCopyright(),MaxTextExtent);
3176 break;
3177 }
3178 break;
3179 }
3180 case 'd':
3181 {
3182 if (LocaleCompare("depth",property) == 0)
3183 {
3184 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3185 image->depth);
3186 break;
3187 }
3188 if (LocaleCompare("directory",property) == 0)
3189 {
3190 GetPathComponent(image->magick_filename,HeadPath,value);
3191 break;
3192 }
3193 break;
3194 }
3195 case 'e':
3196 {
3197 if (LocaleCompare("entropy",property) == 0)
3198 {
3199 double
3200 entropy;
3201
3202 (void) GetImageChannelEntropy(image,image_info->channel,&entropy,
3203 &image->exception);
3204 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
3205 GetMagickPrecision(),entropy);
3206 break;
3207 }
3208 if (LocaleCompare("extension",property) == 0)
3209 {
3210 GetPathComponent(image->magick_filename,ExtensionPath,value);
3211 break;
3212 }
3213 break;
3214 }
3215 case 'g':
3216 {
3217 if (LocaleCompare("gamma",property) == 0)
3218 {
3219 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
3220 GetMagickPrecision(),image->gamma);
3221 break;
3222 }
3223 if ((image_info != (ImageInfo *) NULL) &&
3224 (LocaleCompare("group",property) == 0))
3225 {
3226 (void) FormatLocaleString(value,MaxTextExtent,"0x%lx",(unsigned long)
3227 image_info->group);
3228 break;
3229 }
3230 break;
3231 }
3232 case 'h':
3233 {
3234 if (LocaleCompare("height",property) == 0)
3235 {
3236 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
3237 image->magick_rows != 0 ? (double) image->magick_rows : 256.0);
3238 break;
3239 }
3240 break;
3241 }
3242 case 'i':
3243 {
3244 if (LocaleCompare("input",property) == 0)
3245 {
3246 string=image->filename;
3247 break;
3248 }
3249 if (LocaleCompare("interlace",property) == 0)
3250 {
3251 string=CommandOptionToMnemonic(MagickInterlaceOptions,(ssize_t)
3252 image->interlace);
3253 break;
3254 }
3255 break;
3256 }
3257 case 'k':
3258 {
3259 if (LocaleCompare("kurtosis",property) == 0)
3260 {
3261 double
3262 kurtosis,
3263 skewness;
3264
3265 (void) GetImageChannelKurtosis(image,image_info->channel,&kurtosis,
3266 &skewness,&image->exception);
3267 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
3268 GetMagickPrecision(),kurtosis);
3269 break;
3270 }
3271 break;
3272 }
3273 case 'm':
3274 {
3275 if (LocaleCompare("magick",property) == 0)
3276 {
3277 string=image->magick;
3278 break;
3279 }
3280 if ((LocaleCompare("max",property) == 0) ||
3281 (LocaleCompare("maxima",property) == 0))
3282 {
3283 double
3284 maximum,
3285 minimum;
3286
3287 (void) GetImageChannelRange(image,image_info->channel,&minimum,
3288 &maximum,&image->exception);
3289 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
3290 GetMagickPrecision(),maximum);
3291 break;
3292 }
3293 if (LocaleCompare("mean",property) == 0)
3294 {
3295 double
3296 mean,
3297 standard_deviation;
3298
3299 (void) GetImageChannelMean(image,image_info->channel,&mean,
3300 &standard_deviation,&image->exception);
3301 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
3302 GetMagickPrecision(),mean);
3303 break;
3304 }
3305 if ((LocaleCompare("min",property) == 0) ||
3306 (LocaleCompare("minima",property) == 0))
3307 {
3308 double
3309 maximum,
3310 minimum;
3311
3312 (void) GetImageChannelRange(image,image_info->channel,&minimum,
3313 &maximum,&image->exception);
3314 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
3315 GetMagickPrecision(),minimum);
3316 break;
3317 }
3318 break;
3319 }
3320 case 'o':
3321 {
3322 if (LocaleCompare("opaque",property) == 0)
3323 {
3324 MagickBooleanType
3325 opaque;
3326
3327 opaque=IsOpaqueImage(image,&image->exception);
3328 (void) CopyMagickString(value,opaque != MagickFalse ? "true" :
3329 "false",MaxTextExtent);
3330 break;
3331 }
3332 if (LocaleCompare("orientation",property) == 0)
3333 {
3334 string=CommandOptionToMnemonic(MagickOrientationOptions,(ssize_t)
3335 image->orientation);
3336 break;
3337 }
3338 if ((image_info != (ImageInfo *) NULL) &&
3339 (LocaleCompare("output",property) == 0))
3340 {
3341 (void) CopyMagickString(value,image_info->filename,MaxTextExtent);
3342 break;
3343 }
3344 break;
3345 }
3346 case 'p':
3347 {
3348 if (LocaleCompare("page",property) == 0)
3349 {
3350 (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g",(double)
3351 image->page.width,(double) image->page.height);
3352 break;
3353 }
3354 if (LocaleNCompare("papersize:",property,10) == 0)
3355 {
3356 char
3357 *papersize;
3358
3359 *value='\0';
3360 papersize=GetPageGeometry(property+10);
3361 if (papersize != (const char *) NULL)
3362 {
3363 RectangleInfo
3364 page = { 0, 0, 0, 0 };
3365
3366 (void) ParseAbsoluteGeometry(papersize,&page);
3367 (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g",
3368 (double) page.width,(double) page.height);
3369 papersize=DestroyString(papersize);
3370 }
3371 break;
3372 }
3373#if defined(MAGICKCORE_LCMS_DELEGATE)
3374 if (LocaleCompare("profile:icc",property) == 0 ||
3375 LocaleCompare("profile:icm",property) == 0)
3376 {
3377#if !defined(LCMS_VERSION) || (LCMS_VERSION < 2000)
3378#define cmsUInt32Number DWORD
3379#endif
3380
3381 const StringInfo
3382 *profile;
3383
3384 cmsHPROFILE
3385 icc_profile;
3386
3387 profile=GetImageProfile(image,property+8);
3388 if (profile == (StringInfo *) NULL)
3389 break;
3390
3391 icc_profile=cmsOpenProfileFromMem(GetStringInfoDatum(profile),
3392 (cmsUInt32Number) GetStringInfoLength(profile));
3393 if (icc_profile != (cmsHPROFILE *) NULL)
3394 {
3395#if defined(LCMS_VERSION) && (LCMS_VERSION < 2000)
3396 string=cmsTakeProductName(icc_profile);
3397#else
3398 (void) cmsGetProfileInfoASCII(icc_profile,cmsInfoDescription,
3399 "en","US",value,MaxTextExtent);
3400#endif
3401 (void) cmsCloseProfile(icc_profile);
3402 }
3403 }
3404#endif
3405 if (LocaleCompare("printsize.x",property) == 0)
3406 {
3407 (void) FormatLocaleString(value,MagickPathExtent,"%.*g",
3408 GetMagickPrecision(),MagickSafeReciprocal(image->x_resolution)*
3409 image->columns);
3410 break;
3411 }
3412 if (LocaleCompare("printsize.y",property) == 0)
3413 {
3414 (void) FormatLocaleString(value,MagickPathExtent,"%.*g",
3415 GetMagickPrecision(),MagickSafeReciprocal(image->y_resolution)*
3416 image->rows);
3417 break;
3418 }
3419 if (LocaleCompare("profiles",property) == 0)
3420 {
3421 const char
3422 *name;
3423
3424 ResetImageProfileIterator(image);
3425 name=GetNextImageProfile(image);
3426 if (name != (char *) NULL)
3427 {
3428 (void) CopyMagickString(value,name,MaxTextExtent);
3429 name=GetNextImageProfile(image);
3430 while (name != (char *) NULL)
3431 {
3432 ConcatenateMagickString(value,",",MaxTextExtent);
3433 ConcatenateMagickString(value,name,MaxTextExtent);
3434 name=GetNextImageProfile(image);
3435 }
3436 }
3437 break;
3438 }
3439 break;
3440 }
3441 case 'q':
3442 {
3443 if (LocaleCompare("quality",property) == 0)
3444 {
3445 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3446 image->quality);
3447 break;
3448 }
3449 break;
3450 }
3451 case 'r':
3452 {
3453 if (LocaleCompare("rendering-intent",property) == 0)
3454 {
3455 string=CommandOptionToMnemonic(MagickIntentOptions,(ssize_t)
3456 image->rendering_intent);
3457 break;
3458 }
3459 if (LocaleCompare("resolution.x",property) == 0)
3460 {
3461 (void) FormatLocaleString(value,MaxTextExtent,"%g",
3462 image->x_resolution);
3463 break;
3464 }
3465 if (LocaleCompare("resolution.y",property) == 0)
3466 {
3467 (void) FormatLocaleString(value,MaxTextExtent,"%g",
3468 image->y_resolution);
3469 break;
3470 }
3471 break;
3472 }
3473 case 's':
3474 {
3475 if (LocaleCompare("scene",property) == 0)
3476 {
3477 if ((image_info != (ImageInfo *) NULL) &&
3478 (image_info->number_scenes != 0))
3479 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3480 image_info->scene);
3481 else
3482 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3483 image->scene);
3484 break;
3485 }
3486 if (LocaleCompare("scenes",property) == 0)
3487 {
3488 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3489 GetImageListLength(image));
3490 break;
3491 }
3492 if (LocaleCompare("size",property) == 0)
3493 {
3494 (void) FormatMagickSize(GetBlobSize(image),MagickFalse,value);
3495 break;
3496 }
3497 if (LocaleCompare("skewness",property) == 0)
3498 {
3499 double
3500 kurtosis,
3501 skewness;
3502
3503 (void) GetImageChannelKurtosis(image,image_info->channel,&kurtosis,
3504 &skewness,&image->exception);
3505 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
3506 GetMagickPrecision(),skewness);
3507 break;
3508 }
3509 if ((LocaleCompare("standard-deviation",property) == 0) ||
3510 (LocaleCompare("standard_deviation",property) == 0))
3511 {
3512 double
3513 mean,
3514 standard_deviation;
3515
3516 (void) GetImageChannelMean(image,image_info->channel,&mean,
3517 &standard_deviation,&image->exception);
3518 (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
3519 GetMagickPrecision(),standard_deviation);
3520 break;
3521 }
3522 break;
3523 }
3524 case 't':
3525 {
3526 if (LocaleCompare("type",property) == 0)
3527 {
3528 string=CommandOptionToMnemonic(MagickTypeOptions,(ssize_t)
3529 IdentifyImageType(image,&image->exception));
3530 break;
3531 }
3532 break;
3533 }
3534 case 'u':
3535 {
3536 if ((image_info != (ImageInfo *) NULL) &&
3537 (LocaleCompare("unique",property) == 0))
3538 {
3539 string=image_info->unique;
3540 break;
3541 }
3542 if (LocaleCompare("units",property) == 0)
3543 {
3544 /*
3545 Image resolution units.
3546 */
3547 string=CommandOptionToMnemonic(MagickResolutionOptions,(ssize_t)
3548 image->units);
3549 break;
3550 }
3551 break;
3552 }
3553 case 'v':
3554 {
3555 if (LocaleCompare("version",property) == 0)
3556 {
3557 string=GetMagickVersion((size_t *) NULL);
3558 break;
3559 }
3560 break;
3561 }
3562 case 'w':
3563 {
3564 if (LocaleCompare("width",property) == 0)
3565 {
3566 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3567 (image->magick_columns != 0 ? image->magick_columns : 256));
3568 break;
3569 }
3570 break;
3571 }
3572 case 'x': /* FUTURE: Obsolete X resolution */
3573 {
3574 if ((LocaleCompare("xresolution",property) == 0) ||
3575 (LocaleCompare("x-resolution",property) == 0) )
3576 {
3577 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
3578 image->x_resolution);
3579 break;
3580 }
3581 break;
3582 }
3583 case 'y': /* FUTURE: Obsolete Y resolution */
3584 {
3585 if ((LocaleCompare("yresolution",property) == 0) ||
3586 (LocaleCompare("y-resolution",property) == 0) )
3587 {
3588 (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
3589 image->y_resolution);
3590 break;
3591 }
3592 break;
3593 }
3594 case 'z':
3595 {
3596 if ((image_info != (ImageInfo *) NULL) &&
3597 (LocaleCompare("zero",property) == 0))
3598 {
3599 string=image_info->zero;
3600 break;
3601 }
3602 break;
3603 }
3604 }
3605 if (*value != '\0')
3606 string=value;
3607 if (string != (char *) NULL)
3608 {
3609 (void) SetImageArtifact(image,"get-property", string);
3610 return(GetImageArtifact(image,"get-property"));
3611 }
3612 return((char *) NULL);
3613}
3614␌
3615/*
3616%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3617% %
3618% %
3619% %
3620% G e t N e x t I m a g e P r o p e r t y %
3621% %
3622% %
3623% %
3624%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3625%
3626% GetNextImageProperty() gets the next free-form string property name.
3627%
3628% The format of the GetNextImageProperty method is:
3629%
3630% char *GetNextImageProperty(const Image *image)
3631%
3632% A description of each parameter follows:
3633%
3634% o image: the image.
3635%
3636*/
3637MagickExport char *GetNextImageProperty(const Image *image)
3638{
3639 assert(image != (Image *) NULL);
3640 assert(image->signature == MagickCoreSignature);
3641 if (IsEventLogging() != MagickFalse)
3642 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
3643 image->filename);
3644 if (image->properties == (void *) NULL)
3645 return((char *) NULL);
3646 return((char *) GetNextKeyInSplayTree((SplayTreeInfo *) image->properties));
3647}
3648␌
3649/*
3650%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3651% %
3652% %
3653% %
3654% I n t e r p r e t I m a g e P r o p e r t i e s %
3655% %
3656% %
3657% %
3658%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3659%
3660% InterpretImageProperties() replaces any embedded formatting characters with
3661% the appropriate image property and returns the interpreted text.
3662%
3663% This searches for and replaces
3664% \n \r \% replaced by newline, return, and percent resp.
3665% &lt; &gt; &amp; replaced by '<', '>', '&' resp.
3666% %% replaced by percent
3667%
3668% %x %[x] where 'x' is a single letter prosperity, case sensitive).
3669% %[type:name] where 'type' a is special and known prefix.
3670% %[name] where 'name' is a specifically known attribute, calculated
3671% value, or a per-image property string name, or a per-image
3672% 'artifact' (as generated from a global option).
3673% It may contain ':' as long as the prefix is not special.
3674%
3675% Single letter % substitutions will only happen if the character before the
3676% percent is NOT a number. But braced substitutions will always be performed.
3677% This prevents the typical usage of percent in a interpreted geometry
3678% argument from being substituted when the percent is a geometry flag.
3679%
3680% If 'glob-expressions' ('*' or '?' characters) is used for 'name' it may be
3681% used as a search pattern to print multiple lines of "name=value\n" pairs of
3682% the associacted set of properities.
3683%
3684% The returned string must be freed using DestroyString() by the caller.
3685%
3686% The format of the InterpretImageProperties method is:
3687%
3688% char *InterpretImageProperties(const ImageInfo *image_info,Image *image,
3689% const char *embed_text)
3690%
3691% A description of each parameter follows:
3692%
3693% o image_info: the image info.
3694%
3695% o image: the image.
3696%
3697% o embed_text: the address of a character string containing the embedded
3698% formatting characters.
3699%
3700*/
3701MagickExport char *InterpretImageProperties(const ImageInfo *image_info,
3702 Image *image,const char *embed_text)
3703{
3704#define ExtendInterpretText(string_length) \
3705{ \
3706 size_t length=(string_length); \
3707 if ((size_t) (q-interpret_text+length+1) >= extent) \
3708 { \
3709 extent+=length; \
3710 interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
3711 MaxTextExtent,sizeof(*interpret_text)); \
3712 if (interpret_text == (char *) NULL) \
3713 { \
3714 if (property_info != image_info) \
3715 property_info=DestroyImageInfo(property_info); \
3716 return((char *) NULL); \
3717 } \
3718 q=interpret_text+strlen(interpret_text); \
3719 } \
3720}
3721
3722#define AppendKeyValue2Text(key,value)\
3723{ \
3724 size_t length=strlen(key)+strlen(value)+2; \
3725 if ((size_t) (q-interpret_text+length+1) >= extent) \
3726 { \
3727 extent+=length; \
3728 interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
3729 MaxTextExtent,sizeof(*interpret_text)); \
3730 if (interpret_text == (char *) NULL) \
3731 { \
3732 if (property_info != image_info) \
3733 property_info=DestroyImageInfo(property_info); \
3734 return((char *) NULL); \
3735 } \
3736 q=interpret_text+strlen(interpret_text); \
3737 } \
3738 q+=(ptrdiff_t) FormatLocaleString(q,extent,"%s=%s\n",(key),(value)); \
3739}
3740
3741#define AppendString2Text(string) \
3742{ \
3743 size_t length=strlen((string)); \
3744 if ((size_t) (q-interpret_text+length+1) >= extent) \
3745 { \
3746 extent+=length; \
3747 interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
3748 MaxTextExtent,sizeof(*interpret_text)); \
3749 if (interpret_text == (char *) NULL) \
3750 { \
3751 if (property_info != image_info) \
3752 property_info=DestroyImageInfo(property_info); \
3753 return((char *) NULL); \
3754 } \
3755 q=interpret_text+strlen(interpret_text); \
3756 } \
3757 (void) CopyMagickString(q,(string),extent); \
3758 q+=(ptrdiff_t) length; \
3759}
3760
3761 char
3762 *interpret_text;
3763
3764 ImageInfo
3765 *property_info;
3766
3767 char
3768 *q; /* current position in interpret_text */
3769
3770 const char
3771 *p; /* position in embed_text string being expanded */
3772
3773 size_t
3774 extent; /* allocated length of interpret_text */
3775
3776 MagickBooleanType
3777 number;
3778
3779 assert(image != (Image *) NULL);
3780 assert(image->signature == MagickCoreSignature);
3781 if (IsEventLogging() != MagickFalse)
3782 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
3783 if (embed_text == (const char *) NULL)
3784 return(ConstantString(""));
3785 p=embed_text;
3786 while ((isspace((int) ((unsigned char) *p)) != 0) && (*p != '\0'))
3787 p++;
3788 if (*p == '\0')
3789 return(ConstantString(""));
3790 if ((*p == '@') && (IsPathAccessible(p+1) != MagickFalse))
3791 {
3792 /*
3793 Replace string from file.
3794 */
3795 if (IsRightsAuthorized(PathPolicyDomain,ReadPolicyRights,p) == MagickFalse)
3796 {
3797 errno=EPERM;
3798 (void) ThrowMagickException(&image->exception,GetMagickModule(),
3799 PolicyError,"NotAuthorized","`%s'",p);
3800 return(ConstantString(""));
3801 }
3802 interpret_text=FileToString(p,~0UL,&image->exception);
3803 if (interpret_text != (char *) NULL)
3804 return(interpret_text);
3805 }
3806 /*
3807 Translate any embedded format characters.
3808 */
3809 if (image_info != (ImageInfo *) NULL)
3810 property_info=(ImageInfo *) image_info;
3811 else
3812 property_info=CloneImageInfo(image_info);
3813 interpret_text=AcquireString(embed_text); /* new string with extra space */
3814 extent=MaxTextExtent; /* how many extra space */
3815 number=MagickFalse; /* is last char a number? */
3816 for (q=interpret_text; *p!='\0';
3817 number=(isdigit((int) ((unsigned char) *p))) ? MagickTrue : MagickFalse,p++)
3818 {
3819 /*
3820 Look for the various escapes, (and handle other specials).
3821 */
3822 *q='\0';
3823 ExtendInterpretText(MaxTextExtent);
3824 switch (*p)
3825 {
3826 case '\\':
3827 {
3828 switch (*(p+1))
3829 {
3830 case '\0':
3831 continue;
3832 case 'r': /* convert to RETURN */
3833 {
3834 *q++='\r';
3835 p++;
3836 continue;
3837 }
3838 case 'n': /* convert to NEWLINE */
3839 {
3840 *q++='\n';
3841 p++;
3842 continue;
3843 }
3844 case '\n': /* EOL removal UNIX,MacOSX */
3845 {
3846 p++;
3847 continue;
3848 }
3849 case '\r': /* EOL removal DOS,Windows */
3850 {
3851 p++;
3852 if (*p == '\n') /* return-newline EOL */
3853 p++;
3854 continue;
3855 }
3856 default:
3857 {
3858 p++;
3859 *q++=(*p);
3860 }
3861 }
3862 continue;
3863 }
3864 case '&':
3865 {
3866 if (LocaleNCompare("&lt;",p,4) == 0)
3867 {
3868 *q++='<';
3869 p+=(ptrdiff_t) 3;
3870 }
3871 else
3872 if (LocaleNCompare("&gt;",p,4) == 0)
3873 {
3874 *q++='>';
3875 p+=(ptrdiff_t) 3;
3876 }
3877 else
3878 if (LocaleNCompare("&amp;",p,5) == 0)
3879 {
3880 *q++='&';
3881 p+=(ptrdiff_t) 4;
3882 }
3883 else
3884 *q++=(*p);
3885 continue;
3886 }
3887 case '%':
3888 break; /* continue to next set of handlers */
3889 default:
3890 {
3891 *q++=(*p); /* any thing else is 'as normal' */
3892 continue;
3893 }
3894 }
3895 p++; /* advance beyond the percent */
3896 /*
3897 Doubled percent - or percent at end of string.
3898 */
3899 if ((*p == '\0') || (*p == '\'') || (*p == '"'))
3900 p--;
3901 if (*p == '%')
3902 {
3903 *q++='%';
3904 continue;
3905 }
3906 /*
3907 Single letter escapes %c.
3908 */
3909 if (*p != '[')
3910 {
3911 const char
3912 *value;
3913
3914 /* But only if not preceeded by a number! */
3915 if (number != MagickFalse)
3916 {
3917 *q++='%'; /* do NOT substitute the percent */
3918 p--; /* back up one */
3919 continue;
3920 }
3921 value=GetMagickPropertyLetter(property_info,image,*p);
3922 if (value != (char *) NULL)
3923 {
3924 AppendString2Text(value);
3925 continue;
3926 }
3927 (void) ThrowMagickException(&image->exception,GetMagickModule(),
3928 OptionWarning,"UnknownImageProperty","\"%%%c\"",*p);
3929 continue;
3930 }
3931 {
3932 char
3933 pattern[2*MaxTextExtent] = "\0";
3934
3935 const char
3936 *key,
3937 *value;
3938
3939 ssize_t
3940 len;
3941
3942 ssize_t
3943 depth;
3944
3945 /*
3946 Braced Percent Escape %[...]
3947 */
3948 p++; /* advance p to just inside the opening brace */
3949 depth=1;
3950 if ( *p == ']' )
3951 {
3952 (void) ThrowMagickException(&image->exception,GetMagickModule(),
3953 OptionWarning,"UnknownImageProperty","\"%%[]\"");
3954 break;
3955 }
3956 for (len=0; len<(MaxTextExtent-1L) && (*p != '\0');)
3957 {
3958 if ((*p == '\\') && (*(p+1) != '\0'))
3959 {
3960 /*
3961 Skip escaped braces within braced pattern.
3962 */
3963 pattern[len++]=(*p++);
3964 pattern[len++]=(*p++);
3965 continue;
3966 }
3967 if (*p == '[')
3968 depth++;
3969 if (*p == ']')
3970 depth--;
3971 if (depth <= 0)
3972 break;
3973 pattern[len++]=(*p++);
3974 }
3975 pattern[len]='\0';
3976 if (depth != 0)
3977 {
3978 /*
3979 Check for unmatched final ']' for "%[...]".
3980 */
3981 if (len >= 64)
3982 {
3983 pattern[61] = '.'; /* truncate string for error message */
3984 pattern[62] = '.';
3985 pattern[63] = '.';
3986 pattern[64] = '\0';
3987 }
3988 (void) ThrowMagickException(&image->exception,GetMagickModule(),
3989 OptionError,"UnbalancedBraces","\"%%[%s\"",pattern);
3990 interpret_text=DestroyString(interpret_text);
3991 if (property_info != image_info)
3992 property_info=DestroyImageInfo(property_info);
3993 return((char *) NULL);
3994 }
3995 /*
3996 Special Lookup Prefixes %[prefix:...]
3997 */
3998 if (LocaleNCompare("fx:",pattern,3) == 0)
3999 {
4000 double
4001 value;
4002
4003 FxInfo
4004 *fx_info;
4005
4006 MagickBooleanType
4007 status;
4008
4009 /*
4010 FX - value calculator.
4011 */
4012 fx_info=AcquireFxInfo(image,pattern+3);
4013 status=FxEvaluateChannelExpression(fx_info,property_info->channel,0,0,
4014 &value,&image->exception);
4015 fx_info=DestroyFxInfo(fx_info);
4016 if (status != MagickFalse)
4017 {
4018 char
4019 result[MagickPathExtent];
4020
4021 (void) FormatLocaleString(result,MagickPathExtent,"%.*g",
4022 GetMagickPrecision(),(double) value);
4023 AppendString2Text(result);
4024 }
4025 continue;
4026 }
4027 if (LocaleNCompare("option:",pattern,7) == 0)
4028 {
4029 /*
4030 Option - direct global option lookup (with globbing).
4031 */
4032 if (IsGlob(pattern+7) != MagickFalse)
4033 {
4034 ResetImageOptionIterator(property_info);
4035 while ((key=GetNextImageOption(property_info)) != (const char *) NULL)
4036 if (GlobExpression(key,pattern+7,MagickTrue) != MagickFalse)
4037 {
4038 value=GetImageOption(property_info,key);
4039 if (value != (const char *) NULL)
4040 AppendKeyValue2Text(key,value);
4041 /* else - assertion failure? key but no value! */
4042 }
4043 continue;
4044 }
4045 value=GetImageOption(property_info,pattern+7);
4046 if (value != (char *) NULL)
4047 AppendString2Text(value);
4048 /* else - no global option of this specifc name */
4049 continue;
4050 }
4051 if (LocaleNCompare("artifact:",pattern,9) == 0)
4052 {
4053 /*
4054 Artifact - direct image artifact lookup (with glob).
4055 */
4056 if (IsGlob(pattern+9) != MagickFalse)
4057 {
4058 ResetImageArtifactIterator(image);
4059 while ((key=GetNextImageArtifact(image)) != (const char *) NULL)
4060 if (GlobExpression(key,pattern+9,MagickTrue) != MagickFalse)
4061 {
4062 value=GetImageArtifact(image,key);
4063 if (value != (const char *) NULL)
4064 AppendKeyValue2Text(key,value);
4065 /* else - assertion failure? key but no value! */
4066 }
4067 continue;
4068 }
4069 value=GetImageArtifact(image,pattern+9);
4070 if (value != (char *) NULL)
4071 AppendString2Text(value);
4072 /* else - no artifact of this specifc name */
4073 continue;
4074 }
4075 /*
4076 Handle special image properties, for example:
4077 %[exif:...] %[fx:...] %[pixel:...].
4078
4079 FUTURE: handle %[property:...] prefix - abort other lookups.
4080 */
4081 value=GetImageProperty(image,pattern);
4082 if (value != (const char *) NULL)
4083 {
4084 AppendString2Text(value);
4085 continue;
4086 }
4087 /*
4088 Handle property 'glob' patterns such as:
4089 %[*] %[user:array_??] %[filename:e*]
4090 */
4091 if (IsGlob(pattern) != MagickFalse)
4092 {
4093 ResetImagePropertyIterator(image);
4094 while ((key=GetNextImageProperty(image)) != (const char *) NULL)
4095 if (GlobExpression(key,pattern,MagickTrue) != MagickFalse)
4096 {
4097 value=GetImageProperty(image,key);
4098 if (value != (const char *) NULL)
4099 AppendKeyValue2Text(key,value);
4100 /* else - assertion failure? */
4101 }
4102 continue;
4103 }
4104 /*
4105 Look for a known property or image attribute such as
4106 %[basename] %[density] %[delay]. Also handles a braced single
4107 letter: %[b] %[G] %[g].
4108 */
4109 value=GetMagickProperty(property_info,image,pattern);
4110 if (value != (const char *) NULL)
4111 {
4112 AppendString2Text(value);
4113 continue;
4114 }
4115 /*
4116 Look for a per-image Artifact (user option, post-interpreted)
4117 */
4118 value=GetImageArtifact(image,pattern);
4119 if (value != (char *) NULL)
4120 {
4121 AppendString2Text(value);
4122 continue;
4123 }
4124 /*
4125 Look for user option of this name (should never match in CLI usage).
4126 */
4127 value=GetImageOption(property_info,pattern);
4128 if (value != (char *) NULL)
4129 {
4130 AppendString2Text(value);
4131 continue;
4132 }
4133 /*
4134 Failed to find any match anywhere!
4135 */
4136 if (len >= 64)
4137 {
4138 pattern[61] = '.'; /* truncate string for error message */
4139 pattern[62] = '.';
4140 pattern[63] = '.';
4141 pattern[64] = '\0';
4142 }
4143 (void) ThrowMagickException(&image->exception,GetMagickModule(),
4144 OptionWarning,"UnknownImageProperty","\"%%[%s]\"",pattern);
4145 /* continue */
4146 } /* Braced Percent Escape */
4147 } /* for each char in 'embed_text' */
4148 *q='\0';
4149 if (property_info != image_info)
4150 property_info=DestroyImageInfo(property_info);
4151 return(interpret_text);
4152}
4153␌
4154/*
4155%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4156% %
4157% %
4158% %
4159% R e m o v e I m a g e P r o p e r t y %
4160% %
4161% %
4162% %
4163%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4164%
4165% RemoveImageProperty() removes a property from the image and returns its
4166% value.
4167%
4168% In this case the ConstantString() value returned should be freed by the
4169% caller when finished.
4170%
4171% The format of the RemoveImageProperty method is:
4172%
4173% char *RemoveImageProperty(Image *image,const char *property)
4174%
4175% A description of each parameter follows:
4176%
4177% o image: the image.
4178%
4179% o property: the image property.
4180%
4181*/
4182MagickExport char *RemoveImageProperty(Image *image,const char *property)
4183{
4184 char
4185 *value;
4186
4187 assert(image != (Image *) NULL);
4188 assert(image->signature == MagickCoreSignature);
4189 if (IsEventLogging() != MagickFalse)
4190 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
4191 image->filename);
4192 if (image->properties == (void *) NULL)
4193 return((char *) NULL);
4194 value=(char *) RemoveNodeFromSplayTree((SplayTreeInfo *) image->properties,
4195 property);
4196 return(value);
4197}
4198␌
4199/*
4200%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4201% %
4202% %
4203% %
4204% R e s e t I m a g e P r o p e r t y I t e r a t o r %
4205% %
4206% %
4207% %
4208%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4209%
4210% ResetImagePropertyIterator() resets the image properties iterator. Use it
4211% in conjunction with GetNextImageProperty() to iterate over all the values
4212% associated with an image property.
4213%
4214% The format of the ResetImagePropertyIterator method is:
4215%
4216% ResetImagePropertyIterator(Image *image)
4217%
4218% A description of each parameter follows:
4219%
4220% o image: the image.
4221%
4222*/
4223MagickExport void ResetImagePropertyIterator(const Image *image)
4224{
4225 assert(image != (Image *) NULL);
4226 assert(image->signature == MagickCoreSignature);
4227 if (IsEventLogging() != MagickFalse)
4228 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
4229 image->filename);
4230 if (image->properties == (void *) NULL)
4231 return;
4232 ResetSplayTreeIterator((SplayTreeInfo *) image->properties);
4233}
4234␌
4235/*
4236%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4237% %
4238% %
4239% %
4240% S e t I m a g e P r o p e r t y %
4241% %
4242% %
4243% %
4244%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4245%
4246% SetImageProperty() saves the given string value either to specific known
4247% attribute or to a freeform property string.
4248%
4249% The format of the SetImageProperty method is:
4250%
4251% MagickBooleanType SetImageProperty(Image *image,const char *property,
4252% const char *value)
4253%
4254% A description of each parameter follows:
4255%
4256% o image: the image.
4257%
4258% o property: the image property.
4259%
4260% o values: the image property values.
4261%
4262*/
4263MagickExport MagickBooleanType SetImageProperty(Image *image,
4264 const char *property,const char *value)
4265{
4266 ExceptionInfo
4267 *exception;
4268
4269 MagickBooleanType
4270 status;
4271
4272 MagickStatusType
4273 flags;
4274
4275 size_t
4276 property_length;
4277
4278
4279 assert(image != (Image *) NULL);
4280 assert(image->signature == MagickCoreSignature);
4281 if (IsEventLogging() != MagickFalse)
4282 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
4283 image->filename);
4284 if (image->properties == (void *) NULL)
4285 image->properties=NewSplayTree(CompareSplayTreeString,
4286 RelinquishMagickMemory,RelinquishMagickMemory); /* create splay-tree */
4287 if (value == (const char *) NULL)
4288 return(DeleteImageProperty(image,property)); /* delete if NULL */
4289 exception=(&image->exception);
4290 property_length=strlen(property);
4291 if ((property_length > 2) && (*(property+(property_length-2)) == ':') &&
4292 (*(property+(property_length-1)) == '*'))
4293 {
4294 (void) ThrowMagickException(exception,GetMagickModule(),
4295 OptionWarning,"SetReadOnlyProperty","`%s'",property);
4296 return(MagickFalse);
4297 }
4298 /*
4299 FUTURE: These should produce 'illegal settings'
4300 * binary chars in p[roperty key
4301 * first letter must be a alphabetic
4302 * single letter property keys (read only)
4303 * known special prefix (read only, they don't get saved!)
4304 */
4305 status=MagickTrue;
4306 switch (*property)
4307 {
4308 case 'B':
4309 case 'b':
4310 {
4311 if (LocaleCompare("background",property) == 0)
4312 {
4313 (void) QueryColorDatabase(value,&image->background_color,exception);
4314 break;
4315 }
4316 if (LocaleCompare("bias",property) == 0)
4317 {
4318 image->bias=StringToDoubleInterval(value,(double) QuantumRange+1.0);
4319 break;
4320 }
4321 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4322 ConstantString(property),ConstantString(value));
4323 break;
4324 }
4325 case 'C':
4326 case 'c':
4327 {
4328 if (LocaleCompare("colorspace",property) == 0)
4329 {
4330 ssize_t
4331 colorspace;
4332
4333 colorspace=ParseCommandOption(MagickColorspaceOptions,MagickFalse,
4334 value);
4335 if (colorspace < 0)
4336 break;
4337 status=SetImageColorspace(image,(ColorspaceType) colorspace);
4338 break;
4339 }
4340 if (LocaleCompare("compose",property) == 0)
4341 {
4342 ssize_t
4343 compose;
4344
4345 compose=ParseCommandOption(MagickComposeOptions,MagickFalse,value);
4346 if (compose < 0)
4347 break;
4348 image->compose=(CompositeOperator) compose;
4349 break;
4350 }
4351 if (LocaleCompare("compress",property) == 0)
4352 {
4353 ssize_t
4354 compression;
4355
4356 compression=ParseCommandOption(MagickCompressOptions,MagickFalse,
4357 value);
4358 if (compression < 0)
4359 break;
4360 image->compression=(CompressionType) compression;
4361 break;
4362 }
4363 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4364 ConstantString(property),ConstantString(value));
4365 break;
4366 }
4367 case 'D':
4368 case 'd':
4369 {
4370 if (LocaleCompare("delay",property) == 0)
4371 {
4372 GeometryInfo
4373 geometry_info;
4374
4375 flags=ParseGeometry(value,&geometry_info);
4376 if ((flags & GreaterValue) != 0)
4377 {
4378 if (image->delay > (size_t) floor(geometry_info.rho+0.5))
4379 image->delay=(size_t) floor(geometry_info.rho+0.5);
4380 }
4381 else
4382 if ((flags & LessValue) != 0)
4383 {
4384 if ((double) image->delay < floor(geometry_info.rho+0.5))
4385 image->ticks_per_second=CastDoubleToLong(
4386 floor(geometry_info.sigma+0.5));
4387 }
4388 else
4389 image->delay=(size_t) floor(geometry_info.rho+0.5);
4390 if ((flags & SigmaValue) != 0)
4391 image->ticks_per_second=CastDoubleToLong(floor(
4392 geometry_info.sigma+0.5));
4393 break;
4394 }
4395 if (LocaleCompare("density",property) == 0)
4396 {
4397 GeometryInfo
4398 geometry_info;
4399
4400 flags=ParseGeometry(value,&geometry_info);
4401 if ((flags & RhoValue) != 0)
4402 image->x_resolution=geometry_info.rho;
4403 image->y_resolution=image->x_resolution;
4404 if ((flags & SigmaValue) != 0)
4405 image->y_resolution=geometry_info.sigma;
4406 }
4407 if (LocaleCompare("depth",property) == 0)
4408 {
4409 image->depth=StringToUnsignedLong(value);
4410 break;
4411 }
4412 if (LocaleCompare("dispose",property) == 0)
4413 {
4414 ssize_t
4415 dispose;
4416
4417 dispose=ParseCommandOption(MagickDisposeOptions,MagickFalse,value);
4418 if (dispose < 0)
4419 break;
4420 image->dispose=(DisposeType) dispose;
4421 break;
4422 }
4423 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4424 ConstantString(property),ConstantString(value));
4425 break;
4426 }
4427 case 'G':
4428 case 'g':
4429 {
4430 if (LocaleCompare("gamma",property) == 0)
4431 {
4432 image->gamma=StringToDouble(value,(char **) NULL);
4433 break;
4434 }
4435 if (LocaleCompare("gravity",property) == 0)
4436 {
4437 ssize_t
4438 gravity;
4439
4440 gravity=ParseCommandOption(MagickGravityOptions,MagickFalse,value);
4441 if (gravity < 0)
4442 break;
4443 image->gravity=(GravityType) gravity;
4444 break;
4445 }
4446 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4447 ConstantString(property),ConstantString(value));
4448 break;
4449 }
4450 case 'I':
4451 case 'i':
4452 {
4453 if (LocaleCompare("intensity",property) == 0)
4454 {
4455 ssize_t
4456 intensity;
4457
4458 intensity=ParseCommandOption(MagickPixelIntensityOptions,MagickFalse,
4459 value);
4460 if (intensity < 0)
4461 break;
4462 image->intensity=(PixelIntensityMethod) intensity;
4463 break;
4464 }
4465 if (LocaleCompare("interpolate",property) == 0)
4466 {
4467 ssize_t
4468 interpolate;
4469
4470 interpolate=ParseCommandOption(MagickInterpolateOptions,MagickFalse,
4471 value);
4472 if (interpolate < 0)
4473 break;
4474 image->interpolate=(InterpolatePixelMethod) interpolate;
4475 break;
4476 }
4477 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4478 ConstantString(property),ConstantString(value));
4479 break;
4480 }
4481 case 'L':
4482 case 'l':
4483 {
4484 if (LocaleCompare("loop",property) == 0)
4485 {
4486 image->iterations=StringToUnsignedLong(value);
4487 break;
4488 }
4489 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4490 ConstantString(property),ConstantString(value));
4491 break;
4492 }
4493 case 'P':
4494 case 'p':
4495 {
4496 if (LocaleCompare("page",property) == 0)
4497 {
4498 char
4499 *geometry;
4500
4501 geometry=GetPageGeometry(value);
4502 flags=ParseAbsoluteGeometry(geometry,&image->page);
4503 geometry=DestroyString(geometry);
4504 break;
4505 }
4506 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4507 ConstantString(property),ConstantString(value));
4508 break;
4509 }
4510 case 'R':
4511 case 'r':
4512 {
4513 if (LocaleCompare("rendering-intent",property) == 0)
4514 {
4515 ssize_t
4516 rendering_intent;
4517
4518 rendering_intent=ParseCommandOption(MagickIntentOptions,MagickFalse,
4519 value);
4520 if (rendering_intent < 0)
4521 break;
4522 image->rendering_intent=(RenderingIntent) rendering_intent;
4523 break;
4524 }
4525 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4526 ConstantString(property),ConstantString(value));
4527 break;
4528 }
4529 case 'T':
4530 case 't':
4531 {
4532 if (LocaleCompare("tile-offset",property) == 0)
4533 {
4534 char
4535 *geometry;
4536
4537 geometry=GetPageGeometry(value);
4538 flags=ParseAbsoluteGeometry(geometry,&image->tile_offset);
4539 geometry=DestroyString(geometry);
4540 break;
4541 }
4542 if (LocaleCompare("type",property) == 0)
4543 {
4544 ssize_t
4545 type;
4546
4547 type=ParseCommandOption(MagickTypeOptions,MagickFalse,value);
4548 if (type < 0)
4549 return(MagickFalse);
4550 image->type=(ImageType) type;
4551 break;
4552 }
4553 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4554 ConstantString(property),ConstantString(value));
4555 break;
4556 }
4557 case 'U':
4558 case 'u':
4559 {
4560 if (LocaleCompare("units",property) == 0)
4561 {
4562 ssize_t
4563 units;
4564
4565 units=ParseCommandOption(MagickResolutionOptions,MagickFalse,value);
4566 if (units < 0)
4567 break;
4568 image->units=(ResolutionType) units;
4569 break;
4570 }
4571 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4572 ConstantString(property),ConstantString(value));
4573 break;
4574 }
4575 default:
4576 {
4577 status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4578 ConstantString(property),ConstantString(value));
4579 break;
4580 }
4581 }
4582 return(status);
4583}