1 /*
2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 % %
4 % %
5 % %
6 % IIIII M M AAA GGGG EEEEE %
7 % I MM MM A A G E %
8 % I M M M AAAAA G GG EEE %
9 % I M M A A G G E %
10 % IIIII M M A A GGGG EEEEE %
11 % %
12 % %
13 % MagickCore Image Methods %
14 % %
15 % Software Design %
16 % Cristy %
17 % July 1992 %
18 % %
19 % %
20 % Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
22 % %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
25 % %
26 % http://www.imagemagick.org/script/license.php %
27 % %
28 % Unless required by applicable law or agreed to in writing, software %
29 % distributed under the License is distributed on an "AS IS" BASIS, %
30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31 % See the License for the specific language governing permissions and %
32 % limitations under the License. %
33 % %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35 %
36 %
37 %
38 */
39
40 /*
41 Include declarations.
42 */
43 #include "MagickCore/studio.h"
44 #include "MagickCore/animate.h"
45 #include "MagickCore/artifact.h"
46 #include "MagickCore/attribute.h"
47 #include "MagickCore/blob.h"
48 #include "MagickCore/blob-private.h"
49 #include "MagickCore/cache.h"
50 #include "MagickCore/cache-private.h"
51 #include "MagickCore/cache-view.h"
52 #include "MagickCore/client.h"
53 #include "MagickCore/color.h"
54 #include "MagickCore/color-private.h"
55 #include "MagickCore/colormap.h"
56 #include "MagickCore/colorspace.h"
57 #include "MagickCore/colorspace-private.h"
58 #include "MagickCore/composite.h"
59 #include "MagickCore/composite-private.h"
60 #include "MagickCore/compress.h"
61 #include "MagickCore/constitute.h"
62 #include "MagickCore/delegate.h"
63 #include "MagickCore/display.h"
64 #include "MagickCore/draw.h"
65 #include "MagickCore/enhance.h"
66 #include "MagickCore/exception.h"
67 #include "MagickCore/exception-private.h"
68 #include "MagickCore/gem.h"
69 #include "MagickCore/geometry.h"
70 #include "MagickCore/histogram.h"
71 #include "MagickCore/image-private.h"
72 #include "MagickCore/list.h"
73 #include "MagickCore/magic.h"
74 #include "MagickCore/magick.h"
75 #include "MagickCore/magick-private.h"
76 #include "MagickCore/memory_.h"
77 #include "MagickCore/module.h"
78 #include "MagickCore/monitor.h"
79 #include "MagickCore/monitor-private.h"
80 #include "MagickCore/option.h"
81 #include "MagickCore/paint.h"
82 #include "MagickCore/pixel-accessor.h"
83 #include "MagickCore/profile.h"
84 #include "MagickCore/property.h"
85 #include "MagickCore/quantize.h"
86 #include "MagickCore/random_.h"
87 #include "MagickCore/resource_.h"
88 #include "MagickCore/segment.h"
89 #include "MagickCore/semaphore.h"
90 #include "MagickCore/signature-private.h"
91 #include "MagickCore/statistic.h"
92 #include "MagickCore/string_.h"
93 #include "MagickCore/string-private.h"
94 #include "MagickCore/thread-private.h"
95 #include "MagickCore/threshold.h"
96 #include "MagickCore/timer.h"
97 #include "MagickCore/token.h"
98 #include "MagickCore/utility.h"
99 #include "MagickCore/utility-private.h"
100 #include "MagickCore/version.h"
101 #include "MagickCore/xwindow-private.h"
102
103 /*
104 Constant declaration.
105 */
106 const char
107 AlphaColor[] = "#bdbdbd", /* gray */
108 BackgroundColor[] = "#ffffff", /* white */
109 BorderColor[] = "#dfdfdf", /* gray */
110 DefaultTileFrame[] = "15x15+3+3",
111 DefaultTileGeometry[] = "120x120+4+3>",
112 DefaultTileLabel[] = "%f\n%G\n%b",
113 ForegroundColor[] = "#000", /* black */
114 LoadImageTag[] = "Load/Image",
115 LoadImagesTag[] = "Load/Images",
116 PSDensityGeometry[] = "72.0x72.0",
117 PSPageGeometry[] = "612x792",
118 SaveImageTag[] = "Save/Image",
119 SaveImagesTag[] = "Save/Images",
120 TransparentColor[] = "#00000000"; /* transparent black */
121
122 const double
123 DefaultResolution = 72.0;
124
125 /*
126 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
127 % %
128 % %
129 % %
130 % A c q u i r e I m a g e %
131 % %
132 % %
133 % %
134 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
135 %
136 % AcquireImage() returns a pointer to an image structure initialized to
137 % default values.
138 %
139 % The format of the AcquireImage method is:
140 %
141 % Image *AcquireImage(const ImageInfo *image_info,ExceptionInfo *exception)
142 %
143 % A description of each parameter follows:
144 %
145 % o image_info: Many of the image default values are set from this
146 % structure. For example, filename, compression, depth, background color,
147 % and others.
148 %
149 % o exception: return any errors or warnings in this structure.
150 %
151 */
AcquireImage(const ImageInfo * image_info,ExceptionInfo * exception)152 MagickExport Image *AcquireImage(const ImageInfo *image_info,
153 ExceptionInfo *exception)
154 {
155 const char
156 *option;
157
158 Image
159 *image;
160
161 MagickStatusType
162 flags;
163
164 /*
165 Allocate image structure.
166 */
167 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
168 image=(Image *) AcquireMagickMemory(sizeof(*image));
169 if (image == (Image *) NULL)
170 ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
171 (void) ResetMagickMemory(image,0,sizeof(*image));
172 /*
173 Initialize Image structure.
174 */
175 (void) CopyMagickString(image->magick,"MIFF",MagickPathExtent);
176 image->storage_class=DirectClass;
177 image->depth=MAGICKCORE_QUANTUM_DEPTH;
178 image->colorspace=sRGBColorspace;
179 image->rendering_intent=PerceptualIntent;
180 image->gamma=1.000f/2.200f;
181 image->chromaticity.red_primary.x=0.6400f;
182 image->chromaticity.red_primary.y=0.3300f;
183 image->chromaticity.red_primary.z=0.0300f;
184 image->chromaticity.green_primary.x=0.3000f;
185 image->chromaticity.green_primary.y=0.6000f;
186 image->chromaticity.green_primary.z=0.1000f;
187 image->chromaticity.blue_primary.x=0.1500f;
188 image->chromaticity.blue_primary.y=0.0600f;
189 image->chromaticity.blue_primary.z=0.7900f;
190 image->chromaticity.white_point.x=0.3127f;
191 image->chromaticity.white_point.y=0.3290f;
192 image->chromaticity.white_point.z=0.3583f;
193 image->interlace=NoInterlace;
194 image->ticks_per_second=UndefinedTicksPerSecond;
195 image->compose=OverCompositeOp;
196 (void) QueryColorCompliance(AlphaColor,AllCompliance,&image->alpha_color,
197 exception);
198 (void) QueryColorCompliance(BackgroundColor,AllCompliance,
199 &image->background_color,exception);
200 (void) QueryColorCompliance(BorderColor,AllCompliance,&image->border_color,
201 exception);
202 (void) QueryColorCompliance(TransparentColor,AllCompliance,
203 &image->transparent_color,exception);
204 GetTimerInfo(&image->timer);
205 image->cache=AcquirePixelCache(0);
206 image->channel_mask=DefaultChannels;
207 image->channel_map=AcquirePixelChannelMap();
208 image->blob=CloneBlobInfo((BlobInfo *) NULL);
209 image->timestamp=time((time_t *) NULL);
210 image->debug=IsEventLogging();
211 image->reference_count=1;
212 image->semaphore=AcquireSemaphoreInfo();
213 image->signature=MagickCoreSignature;
214 if (image_info == (ImageInfo *) NULL)
215 return(image);
216 /*
217 Transfer image info.
218 */
219 SetBlobExempt(image,image_info->file != (FILE *) NULL ? MagickTrue :
220 MagickFalse);
221 (void) CopyMagickString(image->filename,image_info->filename,
222 MagickPathExtent);
223 (void) CopyMagickString(image->magick_filename,image_info->filename,
224 MagickPathExtent);
225 (void) CopyMagickString(image->magick,image_info->magick,MagickPathExtent);
226 if (image_info->size != (char *) NULL)
227 {
228 (void) ParseAbsoluteGeometry(image_info->size,&image->extract_info);
229 image->columns=image->extract_info.width;
230 image->rows=image->extract_info.height;
231 image->offset=image->extract_info.x;
232 image->extract_info.x=0;
233 image->extract_info.y=0;
234 }
235 if (image_info->extract != (char *) NULL)
236 {
237 RectangleInfo
238 geometry;
239
240 flags=ParseAbsoluteGeometry(image_info->extract,&geometry);
241 if (((flags & XValue) != 0) || ((flags & YValue) != 0))
242 {
243 image->extract_info=geometry;
244 Swap(image->columns,image->extract_info.width);
245 Swap(image->rows,image->extract_info.height);
246 }
247 }
248 image->compression=image_info->compression;
249 image->quality=image_info->quality;
250 image->endian=image_info->endian;
251 image->interlace=image_info->interlace;
252 image->units=image_info->units;
253 if (image_info->density != (char *) NULL)
254 {
255 GeometryInfo
256 geometry_info;
257
258 flags=ParseGeometry(image_info->density,&geometry_info);
259 image->resolution.x=geometry_info.rho;
260 image->resolution.y=geometry_info.sigma;
261 if ((flags & SigmaValue) == 0)
262 image->resolution.y=image->resolution.x;
263 }
264 if (image_info->page != (char *) NULL)
265 {
266 char
267 *geometry;
268
269 image->page=image->extract_info;
270 geometry=GetPageGeometry(image_info->page);
271 (void) ParseAbsoluteGeometry(geometry,&image->page);
272 geometry=DestroyString(geometry);
273 }
274 if (image_info->depth != 0)
275 image->depth=image_info->depth;
276 image->dither=image_info->dither;
277 image->alpha_color=image_info->alpha_color;
278 image->background_color=image_info->background_color;
279 image->border_color=image_info->border_color;
280 image->transparent_color=image_info->transparent_color;
281 image->ping=image_info->ping;
282 image->progress_monitor=image_info->progress_monitor;
283 image->client_data=image_info->client_data;
284 if (image_info->cache != (void *) NULL)
285 ClonePixelCacheMethods(image->cache,image_info->cache);
286 /*
287 Set all global options that map to per-image settings.
288 */
289 (void) SyncImageSettings(image_info,image,exception);
290 /*
291 Global options that are only set for new images.
292 */
293 option=GetImageOption(image_info,"delay");
294 if (option != (const char *) NULL)
295 {
296 GeometryInfo
297 geometry_info;
298
299 flags=ParseGeometry(option,&geometry_info);
300 if ((flags & GreaterValue) != 0)
301 {
302 if (image->delay > (size_t) floor(geometry_info.rho+0.5))
303 image->delay=(size_t) floor(geometry_info.rho+0.5);
304 }
305 else
306 if ((flags & LessValue) != 0)
307 {
308 if (image->delay < (size_t) floor(geometry_info.rho+0.5))
309 image->ticks_per_second=(ssize_t) floor(geometry_info.sigma+0.5);
310 }
311 else
312 image->delay=(size_t) floor(geometry_info.rho+0.5);
313 if ((flags & SigmaValue) != 0)
314 image->ticks_per_second=(ssize_t) floor(geometry_info.sigma+0.5);
315 }
316 option=GetImageOption(image_info,"dispose");
317 if (option != (const char *) NULL)
318 image->dispose=(DisposeType) ParseCommandOption(MagickDisposeOptions,
319 MagickFalse,option);
320 return(image);
321 }
322
323 /*
324 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
325 % %
326 % %
327 % %
328 % A c q u i r e I m a g e I n f o %
329 % %
330 % %
331 % %
332 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
333 %
334 % AcquireImageInfo() allocates the ImageInfo structure.
335 %
336 % The format of the AcquireImageInfo method is:
337 %
338 % ImageInfo *AcquireImageInfo(void)
339 %
340 */
AcquireImageInfo(void)341 MagickExport ImageInfo *AcquireImageInfo(void)
342 {
343 ImageInfo
344 *image_info;
345
346 image_info=(ImageInfo *) AcquireMagickMemory(sizeof(*image_info));
347 if (image_info == (ImageInfo *) NULL)
348 ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
349 GetImageInfo(image_info);
350 return(image_info);
351 }
352
353 /*
354 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
355 % %
356 % %
357 % %
358 % A c q u i r e N e x t I m a g e %
359 % %
360 % %
361 % %
362 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
363 %
364 % AcquireNextImage() initializes the next image in a sequence to
365 % default values. The next member of image points to the newly allocated
366 % image. If there is a memory shortage, next is assigned NULL.
367 %
368 % The format of the AcquireNextImage method is:
369 %
370 % void AcquireNextImage(const ImageInfo *image_info,Image *image,
371 % ExceptionInfo *exception)
372 %
373 % A description of each parameter follows:
374 %
375 % o image_info: Many of the image default values are set from this
376 % structure. For example, filename, compression, depth, background color,
377 % and others.
378 %
379 % o image: the image.
380 %
381 % o exception: return any errors or warnings in this structure.
382 %
383 */
AcquireNextImage(const ImageInfo * image_info,Image * image,ExceptionInfo * exception)384 MagickExport void AcquireNextImage(const ImageInfo *image_info,Image *image,
385 ExceptionInfo *exception)
386 {
387 /*
388 Allocate image structure.
389 */
390 assert(image != (Image *) NULL);
391 assert(image->signature == MagickCoreSignature);
392 if (image->debug != MagickFalse)
393 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
394 image->next=AcquireImage(image_info,exception);
395 if (GetNextImageInList(image) == (Image *) NULL)
396 return;
397 (void) CopyMagickString(GetNextImageInList(image)->filename,image->filename,
398 MagickPathExtent);
399 if (image_info != (ImageInfo *) NULL)
400 (void) CopyMagickString(GetNextImageInList(image)->filename,
401 image_info->filename,MagickPathExtent);
402 DestroyBlob(GetNextImageInList(image));
403 image->next->blob=ReferenceBlob(image->blob);
404 image->next->endian=image->endian;
405 image->next->scene=image->scene+1;
406 image->next->previous=image;
407 }
408
409 /*
410 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
411 % %
412 % %
413 % %
414 % A p p e n d I m a g e s %
415 % %
416 % %
417 % %
418 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
419 %
420 % AppendImages() takes all images from the current image pointer to the end
421 % of the image list and appends them to each other top-to-bottom if the
422 % stack parameter is true, otherwise left-to-right.
423 %
424 % The current gravity setting effects how the image is justified in the
425 % final image.
426 %
427 % The format of the AppendImages method is:
428 %
429 % Image *AppendImages(const Image *images,const MagickBooleanType stack,
430 % ExceptionInfo *exception)
431 %
432 % A description of each parameter follows:
433 %
434 % o images: the image sequence.
435 %
436 % o stack: A value other than 0 stacks the images top-to-bottom.
437 %
438 % o exception: return any errors or warnings in this structure.
439 %
440 */
AppendImages(const Image * images,const MagickBooleanType stack,ExceptionInfo * exception)441 MagickExport Image *AppendImages(const Image *images,
442 const MagickBooleanType stack,ExceptionInfo *exception)
443 {
444 #define AppendImageTag "Append/Image"
445
446 CacheView
447 *append_view;
448
449 Image
450 *append_image;
451
452 MagickBooleanType
453 status;
454
455 MagickOffsetType
456 n;
457
458 PixelTrait
459 alpha_trait;
460
461 RectangleInfo
462 geometry;
463
464 register const Image
465 *next;
466
467 size_t
468 depth,
469 height,
470 number_images,
471 width;
472
473 ssize_t
474 x_offset,
475 y,
476 y_offset;
477
478 /*
479 Compute maximum area of appended area.
480 */
481 assert(images != (Image *) NULL);
482 assert(images->signature == MagickCoreSignature);
483 if (images->debug != MagickFalse)
484 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
485 assert(exception != (ExceptionInfo *) NULL);
486 assert(exception->signature == MagickCoreSignature);
487 alpha_trait=images->alpha_trait;
488 number_images=1;
489 width=images->columns;
490 height=images->rows;
491 depth=images->depth;
492 next=GetNextImageInList(images);
493 for ( ; next != (Image *) NULL; next=GetNextImageInList(next))
494 {
495 if (next->depth > depth)
496 depth=next->depth;
497 if (next->alpha_trait != UndefinedPixelTrait)
498 alpha_trait=BlendPixelTrait;
499 number_images++;
500 if (stack != MagickFalse)
501 {
502 if (next->columns > width)
503 width=next->columns;
504 height+=next->rows;
505 continue;
506 }
507 width+=next->columns;
508 if (next->rows > height)
509 height=next->rows;
510 }
511 /*
512 Append images.
513 */
514 append_image=CloneImage(images,width,height,MagickTrue,exception);
515 if (append_image == (Image *) NULL)
516 return((Image *) NULL);
517 if (SetImageStorageClass(append_image,DirectClass,exception) == MagickFalse)
518 {
519 append_image=DestroyImage(append_image);
520 return((Image *) NULL);
521 }
522 append_image->depth=depth;
523 append_image->alpha_trait=alpha_trait;
524 (void) SetImageBackgroundColor(append_image,exception);
525 status=MagickTrue;
526 x_offset=0;
527 y_offset=0;
528 next=images;
529 append_view=AcquireAuthenticCacheView(append_image,exception);
530 for (n=0; n < (MagickOffsetType) number_images; n++)
531 {
532 CacheView
533 *image_view;
534
535 MagickBooleanType
536 proceed;
537
538 SetGeometry(append_image,&geometry);
539 GravityAdjustGeometry(next->columns,next->rows,next->gravity,&geometry);
540 if (stack != MagickFalse)
541 x_offset-=geometry.x;
542 else
543 y_offset-=geometry.y;
544 image_view=AcquireVirtualCacheView(next,exception);
545 #if defined(MAGICKCORE_OPENMP_SUPPORT)
546 #pragma omp parallel for schedule(static,4) shared(status) \
547 magick_threads(next,next,next->rows,1)
548 #endif
549 for (y=0; y < (ssize_t) next->rows; y++)
550 {
551 MagickBooleanType
552 sync;
553
554 PixelInfo
555 pixel;
556
557 register const Quantum
558 *magick_restrict p;
559
560 register Quantum
561 *magick_restrict q;
562
563 register ssize_t
564 x;
565
566 if (status == MagickFalse)
567 continue;
568 p=GetCacheViewVirtualPixels(image_view,0,y,next->columns,1,exception);
569 q=QueueCacheViewAuthenticPixels(append_view,x_offset,y+y_offset,
570 next->columns,1,exception);
571 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
572 {
573 status=MagickFalse;
574 continue;
575 }
576 GetPixelInfo(next,&pixel);
577 for (x=0; x < (ssize_t) next->columns; x++)
578 {
579 if (GetPixelReadMask(next,p) == 0)
580 {
581 SetPixelBackgoundColor(append_image,q);
582 p+=GetPixelChannels(next);
583 q+=GetPixelChannels(append_image);
584 continue;
585 }
586 GetPixelInfoPixel(next,p,&pixel);
587 SetPixelViaPixelInfo(append_image,&pixel,q);
588 p+=GetPixelChannels(next);
589 q+=GetPixelChannels(append_image);
590 }
591 sync=SyncCacheViewAuthenticPixels(append_view,exception);
592 if (sync == MagickFalse)
593 status=MagickFalse;
594 }
595 image_view=DestroyCacheView(image_view);
596 if (stack == MagickFalse)
597 {
598 x_offset+=(ssize_t) next->columns;
599 y_offset=0;
600 }
601 else
602 {
603 x_offset=0;
604 y_offset+=(ssize_t) next->rows;
605 }
606 proceed=SetImageProgress(append_image,AppendImageTag,n,number_images);
607 if (proceed == MagickFalse)
608 break;
609 next=GetNextImageInList(next);
610 }
611 append_view=DestroyCacheView(append_view);
612 if (status == MagickFalse)
613 append_image=DestroyImage(append_image);
614 return(append_image);
615 }
616
617 /*
618 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
619 % %
620 % %
621 % %
622 % C a t c h I m a g e E x c e p t i o n %
623 % %
624 % %
625 % %
626 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
627 %
628 % CatchImageException() returns if no exceptions are found in the image
629 % sequence, otherwise it determines the most severe exception and reports
630 % it as a warning or error depending on the severity.
631 %
632 % The format of the CatchImageException method is:
633 %
634 % ExceptionType CatchImageException(Image *image)
635 %
636 % A description of each parameter follows:
637 %
638 % o image: An image sequence.
639 %
640 */
CatchImageException(Image * image)641 MagickExport ExceptionType CatchImageException(Image *image)
642 {
643 ExceptionInfo
644 *exception;
645
646 ExceptionType
647 severity;
648
649 assert(image != (const Image *) NULL);
650 assert(image->signature == MagickCoreSignature);
651 if (image->debug != MagickFalse)
652 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
653 exception=AcquireExceptionInfo();
654 CatchException(exception);
655 severity=exception->severity;
656 exception=DestroyExceptionInfo(exception);
657 return(severity);
658 }
659
660 /*
661 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
662 % %
663 % %
664 % %
665 % C l i p I m a g e P a t h %
666 % %
667 % %
668 % %
669 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
670 %
671 % ClipImagePath() sets the image clip mask based any clipping path information
672 % if it exists.
673 %
674 % The format of the ClipImagePath method is:
675 %
676 % MagickBooleanType ClipImagePath(Image *image,const char *pathname,
677 % const MagickBooleanType inside,ExceptionInfo *exception)
678 %
679 % A description of each parameter follows:
680 %
681 % o image: the image.
682 %
683 % o pathname: name of clipping path resource. If name is preceded by #, use
684 % clipping path numbered by name.
685 %
686 % o inside: if non-zero, later operations take effect inside clipping path.
687 % Otherwise later operations take effect outside clipping path.
688 %
689 % o exception: return any errors or warnings in this structure.
690 %
691 */
692
ClipImage(Image * image,ExceptionInfo * exception)693 MagickExport MagickBooleanType ClipImage(Image *image,ExceptionInfo *exception)
694 {
695 return(ClipImagePath(image,"#1",MagickTrue,exception));
696 }
697
ClipImagePath(Image * image,const char * pathname,const MagickBooleanType inside,ExceptionInfo * exception)698 MagickExport MagickBooleanType ClipImagePath(Image *image,const char *pathname,
699 const MagickBooleanType inside,ExceptionInfo *exception)
700 {
701 #define ClipImagePathTag "ClipPath/Image"
702
703 char
704 *property;
705
706 const char
707 *value;
708
709 Image
710 *clip_mask;
711
712 ImageInfo
713 *image_info;
714
715 assert(image != (const Image *) NULL);
716 assert(image->signature == MagickCoreSignature);
717 if (image->debug != MagickFalse)
718 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
719 assert(pathname != NULL);
720 property=AcquireString(pathname);
721 (void) FormatLocaleString(property,MagickPathExtent,"8BIM:1999,2998:%s",
722 pathname);
723 value=GetImageProperty(image,property,exception);
724 property=DestroyString(property);
725 if (value == (const char *) NULL)
726 {
727 ThrowFileException(exception,OptionError,"NoClipPathDefined",
728 image->filename);
729 return(MagickFalse);
730 }
731 image_info=AcquireImageInfo();
732 (void) CopyMagickString(image_info->filename,image->filename,
733 MagickPathExtent);
734 (void) ConcatenateMagickString(image_info->filename,pathname,
735 MagickPathExtent);
736 clip_mask=BlobToImage(image_info,value,strlen(value),exception);
737 image_info=DestroyImageInfo(image_info);
738 if (clip_mask == (Image *) NULL)
739 return(MagickFalse);
740 if (clip_mask->storage_class == PseudoClass)
741 {
742 (void) SyncImage(clip_mask,exception);
743 if (SetImageStorageClass(clip_mask,DirectClass,exception) == MagickFalse)
744 return(MagickFalse);
745 }
746 if (inside == MagickFalse)
747 (void) NegateImage(clip_mask,MagickFalse,exception);
748 (void) FormatLocaleString(clip_mask->magick_filename,MagickPathExtent,
749 "8BIM:1999,2998:%s\nPS",pathname);
750 (void) SetImageMask(image,ReadPixelMask,clip_mask,exception);
751 clip_mask=DestroyImage(clip_mask);
752 return(MagickTrue);
753 }
754
755 /*
756 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
757 % %
758 % %
759 % %
760 % C l o n e I m a g e %
761 % %
762 % %
763 % %
764 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
765 %
766 % CloneImage() copies an image and returns the copy as a new image object.
767 %
768 % If the specified columns and rows is 0, an exact copy of the image is
769 % returned, otherwise the pixel data is undefined and must be initialized
770 % with the QueueAuthenticPixels() and SyncAuthenticPixels() methods. On
771 % failure, a NULL image is returned and exception describes the reason for the
772 % failure.
773 %
774 % The format of the CloneImage method is:
775 %
776 % Image *CloneImage(const Image *image,const size_t columns,
777 % const size_t rows,const MagickBooleanType orphan,
778 % ExceptionInfo *exception)
779 %
780 % A description of each parameter follows:
781 %
782 % o image: the image.
783 %
784 % o columns: the number of columns in the cloned image.
785 %
786 % o rows: the number of rows in the cloned image.
787 %
788 % o detach: With a value other than 0, the cloned image is detached from
789 % its parent I/O stream.
790 %
791 % o exception: return any errors or warnings in this structure.
792 %
793 */
CloneImage(const Image * image,const size_t columns,const size_t rows,const MagickBooleanType detach,ExceptionInfo * exception)794 MagickExport Image *CloneImage(const Image *image,const size_t columns,
795 const size_t rows,const MagickBooleanType detach,ExceptionInfo *exception)
796 {
797 Image
798 *clone_image;
799
800 double
801 scale;
802
803 size_t
804 length;
805
806 /*
807 Clone the image.
808 */
809 assert(image != (const Image *) NULL);
810 assert(image->signature == MagickCoreSignature);
811 if (image->debug != MagickFalse)
812 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
813 assert(exception != (ExceptionInfo *) NULL);
814 assert(exception->signature == MagickCoreSignature);
815 if ((image->columns == 0) || (image->rows == 0))
816 {
817 (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError,
818 "NegativeOrZeroImageSize","`%s'",image->filename);
819 return((Image *) NULL);
820 }
821 clone_image=(Image *) AcquireMagickMemory(sizeof(*clone_image));
822 if (clone_image == (Image *) NULL)
823 ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
824 (void) ResetMagickMemory(clone_image,0,sizeof(*clone_image));
825 clone_image->signature=MagickCoreSignature;
826 clone_image->storage_class=image->storage_class;
827 clone_image->number_channels=image->number_channels;
828 clone_image->number_meta_channels=image->number_meta_channels;
829 clone_image->metacontent_extent=image->metacontent_extent;
830 clone_image->colorspace=image->colorspace;
831 clone_image->read_mask=image->read_mask;
832 clone_image->write_mask=image->write_mask;
833 clone_image->alpha_trait=image->alpha_trait;
834 clone_image->columns=image->columns;
835 clone_image->rows=image->rows;
836 clone_image->dither=image->dither;
837 if (image->colormap != (PixelInfo *) NULL)
838 {
839 /*
840 Allocate and copy the image colormap.
841 */
842 clone_image->colors=image->colors;
843 length=(size_t) image->colors;
844 clone_image->colormap=(PixelInfo *) AcquireQuantumMemory(length,
845 sizeof(*clone_image->colormap));
846 if (clone_image->colormap == (PixelInfo *) NULL)
847 {
848 clone_image=DestroyImage(clone_image);
849 ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
850 }
851 (void) CopyMagickMemory(clone_image->colormap,image->colormap,length*
852 sizeof(*clone_image->colormap));
853 }
854 clone_image->image_info=CloneImageInfo(image->image_info);
855 (void) CloneImageProfiles(clone_image,image);
856 (void) CloneImageProperties(clone_image,image);
857 (void) CloneImageArtifacts(clone_image,image);
858 GetTimerInfo(&clone_image->timer);
859 if (image->ascii85 != (void *) NULL)
860 Ascii85Initialize(clone_image);
861 clone_image->magick_columns=image->magick_columns;
862 clone_image->magick_rows=image->magick_rows;
863 clone_image->type=image->type;
864 clone_image->channel_mask=image->channel_mask;
865 clone_image->channel_map=ClonePixelChannelMap(image->channel_map);
866 (void) CopyMagickString(clone_image->magick_filename,image->magick_filename,
867 MagickPathExtent);
868 (void) CopyMagickString(clone_image->magick,image->magick,MagickPathExtent);
869 (void) CopyMagickString(clone_image->filename,image->filename,
870 MagickPathExtent);
871 clone_image->progress_monitor=image->progress_monitor;
872 clone_image->client_data=image->client_data;
873 clone_image->reference_count=1;
874 clone_image->next=image->next;
875 clone_image->previous=image->previous;
876 clone_image->list=NewImageList();
877 if (detach == MagickFalse)
878 clone_image->blob=ReferenceBlob(image->blob);
879 else
880 {
881 clone_image->next=NewImageList();
882 clone_image->previous=NewImageList();
883 clone_image->blob=CloneBlobInfo((BlobInfo *) NULL);
884 }
885 clone_image->ping=image->ping;
886 clone_image->debug=IsEventLogging();
887 clone_image->semaphore=AcquireSemaphoreInfo();
888 if ((columns == 0) || (rows == 0))
889 {
890 if (image->montage != (char *) NULL)
891 (void) CloneString(&clone_image->montage,image->montage);
892 if (image->directory != (char *) NULL)
893 (void) CloneString(&clone_image->directory,image->directory);
894 clone_image->cache=ReferencePixelCache(image->cache);
895 return(clone_image);
896 }
897 scale=1.0;
898 if (image->columns != 0)
899 scale=(double) columns/(double) image->columns;
900 clone_image->page.width=(size_t) floor(scale*image->page.width+0.5);
901 clone_image->page.x=(ssize_t) ceil(scale*image->page.x-0.5);
902 clone_image->tile_offset.x=(ssize_t) ceil(scale*image->tile_offset.x-0.5);
903 scale=1.0;
904 if (image->rows != 0)
905 scale=(double) rows/(double) image->rows;
906 clone_image->page.height=(size_t) floor(scale*image->page.height+0.5);
907 clone_image->page.y=(ssize_t) ceil(scale*image->page.y-0.5);
908 clone_image->tile_offset.y=(ssize_t) ceil(scale*image->tile_offset.y-0.5);
909 clone_image->cache=ClonePixelCache(image->cache);
910 if (SetImageExtent(clone_image,columns,rows,exception) == MagickFalse)
911 clone_image=DestroyImage(clone_image);
912 return(clone_image);
913 }
914
915 /*
916 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
917 % %
918 % %
919 % %
920 % C l o n e I m a g e I n f o %
921 % %
922 % %
923 % %
924 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
925 %
926 % CloneImageInfo() makes a copy of the given image info structure. If
927 % NULL is specified, a new image info structure is created initialized to
928 % default values.
929 %
930 % The format of the CloneImageInfo method is:
931 %
932 % ImageInfo *CloneImageInfo(const ImageInfo *image_info)
933 %
934 % A description of each parameter follows:
935 %
936 % o image_info: the image info.
937 %
938 */
CloneImageInfo(const ImageInfo * image_info)939 MagickExport ImageInfo *CloneImageInfo(const ImageInfo *image_info)
940 {
941 ImageInfo
942 *clone_info;
943
944 clone_info=AcquireImageInfo();
945 if (image_info == (ImageInfo *) NULL)
946 return(clone_info);
947 clone_info->compression=image_info->compression;
948 clone_info->temporary=image_info->temporary;
949 clone_info->adjoin=image_info->adjoin;
950 clone_info->antialias=image_info->antialias;
951 clone_info->scene=image_info->scene;
952 clone_info->number_scenes=image_info->number_scenes;
953 clone_info->depth=image_info->depth;
954 (void) CloneString(&clone_info->size,image_info->size);
955 (void) CloneString(&clone_info->extract,image_info->extract);
956 (void) CloneString(&clone_info->scenes,image_info->scenes);
957 (void) CloneString(&clone_info->page,image_info->page);
958 clone_info->interlace=image_info->interlace;
959 clone_info->endian=image_info->endian;
960 clone_info->units=image_info->units;
961 clone_info->quality=image_info->quality;
962 (void) CloneString(&clone_info->sampling_factor,image_info->sampling_factor);
963 (void) CloneString(&clone_info->server_name,image_info->server_name);
964 (void) CloneString(&clone_info->font,image_info->font);
965 (void) CloneString(&clone_info->texture,image_info->texture);
966 (void) CloneString(&clone_info->density,image_info->density);
967 clone_info->pointsize=image_info->pointsize;
968 clone_info->fuzz=image_info->fuzz;
969 clone_info->alpha_color=image_info->alpha_color;
970 clone_info->background_color=image_info->background_color;
971 clone_info->border_color=image_info->border_color;
972 clone_info->transparent_color=image_info->transparent_color;
973 clone_info->dither=image_info->dither;
974 clone_info->monochrome=image_info->monochrome;
975 clone_info->colorspace=image_info->colorspace;
976 clone_info->type=image_info->type;
977 clone_info->orientation=image_info->orientation;
978 clone_info->ping=image_info->ping;
979 clone_info->verbose=image_info->verbose;
980 clone_info->progress_monitor=image_info->progress_monitor;
981 clone_info->client_data=image_info->client_data;
982 clone_info->cache=image_info->cache;
983 if (image_info->cache != (void *) NULL)
984 clone_info->cache=ReferencePixelCache(image_info->cache);
985 if (image_info->profile != (void *) NULL)
986 clone_info->profile=(void *) CloneStringInfo((StringInfo *)
987 image_info->profile);
988 SetImageInfoFile(clone_info,image_info->file);
989 SetImageInfoBlob(clone_info,image_info->blob,image_info->length);
990 clone_info->stream=image_info->stream;
991 (void) CopyMagickString(clone_info->magick,image_info->magick,
992 MagickPathExtent);
993 (void) CopyMagickString(clone_info->unique,image_info->unique,
994 MagickPathExtent);
995 (void) CopyMagickString(clone_info->filename,image_info->filename,
996 MagickPathExtent);
997 clone_info->channel=image_info->channel;
998 (void) CloneImageOptions(clone_info,image_info);
999 clone_info->debug=IsEventLogging();
1000 clone_info->signature=image_info->signature;
1001 return(clone_info);
1002 }
1003
1004 /*
1005 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1006 % %
1007 % %
1008 % %
1009 % C o p y I m a g e P i x e l s %
1010 % %
1011 % %
1012 % %
1013 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1014 %
1015 % CopyImagePixels() copies pixels from the source image as defined by the
1016 % geometry the destination image at the specified offset.
1017 %
1018 % The format of the CopyImagePixels method is:
1019 %
1020 % MagickBooleanType CopyImagePixels(Image *image,const Image *source_image,
1021 % const RectangleInfo *geometry,const OffsetInfo *offset,
1022 % ExceptionInfo *exception);
1023 %
1024 % A description of each parameter follows:
1025 %
1026 % o image: the destination image.
1027 %
1028 % o source_image: the source image.
1029 %
1030 % o geometry: define the dimensions of the source pixel rectangle.
1031 %
1032 % o offset: define the offset in the destination image.
1033 %
1034 % o exception: return any errors or warnings in this structure.
1035 %
1036 */
CopyImagePixels(Image * image,const Image * source_image,const RectangleInfo * geometry,const OffsetInfo * offset,ExceptionInfo * exception)1037 MagickExport MagickBooleanType CopyImagePixels(Image *image,
1038 const Image *source_image,const RectangleInfo *geometry,
1039 const OffsetInfo *offset,ExceptionInfo *exception)
1040 {
1041 #define CopyImageTag "Copy/Image"
1042
1043 CacheView
1044 *image_view,
1045 *source_view;
1046
1047 MagickBooleanType
1048 status;
1049
1050 MagickOffsetType
1051 progress;
1052
1053 ssize_t
1054 y;
1055
1056 assert(image != (Image *) NULL);
1057 if (image->debug != MagickFalse)
1058 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1059 assert(source_image != (Image *) NULL);
1060 assert(geometry != (RectangleInfo *) NULL);
1061 assert(offset != (OffsetInfo *) NULL);
1062 if ((offset->x < 0) || (offset->y < 0) ||
1063 ((ssize_t) (offset->x+geometry->width) > (ssize_t) image->columns) ||
1064 ((ssize_t) (offset->y+geometry->height) > (ssize_t) image->rows))
1065 ThrowBinaryException(OptionError,"GeometryDoesNotContainImage",
1066 image->filename);
1067 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
1068 return(MagickFalse);
1069 /*
1070 Copy image pixels.
1071 */
1072 status=MagickTrue;
1073 progress=0;
1074 source_view=AcquireVirtualCacheView(source_image,exception);
1075 image_view=AcquireAuthenticCacheView(image,exception);
1076 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1077 #pragma omp parallel for schedule(static,4) shared(progress,status) \
1078 magick_threads(image,source_image,geometry->height,1)
1079 #endif
1080 for (y=0; y < (ssize_t) geometry->height; y++)
1081 {
1082 MagickBooleanType
1083 sync;
1084
1085 register const Quantum
1086 *magick_restrict p;
1087
1088 register ssize_t
1089 x;
1090
1091 register Quantum
1092 *magick_restrict q;
1093
1094 if (status == MagickFalse)
1095 continue;
1096 p=GetCacheViewVirtualPixels(source_view,geometry->x,y+geometry->y,
1097 geometry->width,1,exception);
1098 q=QueueCacheViewAuthenticPixels(image_view,offset->x,y+offset->y,
1099 geometry->width,1,exception);
1100 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
1101 {
1102 status=MagickFalse;
1103 continue;
1104 }
1105 for (x=0; x < (ssize_t) geometry->width; x++)
1106 {
1107 register ssize_t
1108 i;
1109
1110 for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
1111 {
1112 PixelChannel channel=GetPixelChannelChannel(image,i);
1113 PixelTrait traits=GetPixelChannelTraits(image,channel);
1114 PixelTrait source_traits=GetPixelChannelTraits(source_image,channel);
1115 if ((traits == UndefinedPixelTrait) ||
1116 (source_traits == UndefinedPixelTrait))
1117 continue;
1118 SetPixelChannel(image,channel,p[i],q);
1119 }
1120 p+=GetPixelChannels(source_image);
1121 q+=GetPixelChannels(image);
1122 }
1123 sync=SyncCacheViewAuthenticPixels(image_view,exception);
1124 if (sync == MagickFalse)
1125 status=MagickFalse;
1126 if (image->progress_monitor != (MagickProgressMonitor) NULL)
1127 {
1128 MagickBooleanType
1129 proceed;
1130
1131 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1132 #pragma omp critical (MagickCore_CopyImage)
1133 #endif
1134 proceed=SetImageProgress(image,CopyImageTag,progress++,image->rows);
1135 if (proceed == MagickFalse)
1136 status=MagickFalse;
1137 }
1138 }
1139 source_view=DestroyCacheView(source_view);
1140 image_view=DestroyCacheView(image_view);
1141 return(status);
1142 }
1143
1144 /*
1145 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1146 % %
1147 % %
1148 % %
1149 % D e s t r o y I m a g e %
1150 % %
1151 % %
1152 % %
1153 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1154 %
1155 % DestroyImage() dereferences an image, deallocating memory associated with
1156 % the image if the reference count becomes zero.
1157 %
1158 % The format of the DestroyImage method is:
1159 %
1160 % Image *DestroyImage(Image *image)
1161 %
1162 % A description of each parameter follows:
1163 %
1164 % o image: the image.
1165 %
1166 */
DestroyImage(Image * image)1167 MagickExport Image *DestroyImage(Image *image)
1168 {
1169 MagickBooleanType
1170 destroy;
1171
1172 /*
1173 Dereference image.
1174 */
1175 assert(image != (Image *) NULL);
1176 assert(image->signature == MagickCoreSignature);
1177 if (image->debug != MagickFalse)
1178 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1179 destroy=MagickFalse;
1180 LockSemaphoreInfo(image->semaphore);
1181 image->reference_count--;
1182 if (image->reference_count == 0)
1183 destroy=MagickTrue;
1184 UnlockSemaphoreInfo(image->semaphore);
1185 if (destroy == MagickFalse)
1186 return((Image *) NULL);
1187 /*
1188 Destroy image.
1189 */
1190 DestroyImagePixels(image);
1191 image->channel_map=DestroyPixelChannelMap(image->channel_map);
1192 if (image->montage != (char *) NULL)
1193 image->montage=DestroyString(image->montage);
1194 if (image->directory != (char *) NULL)
1195 image->directory=DestroyString(image->directory);
1196 if (image->colormap != (PixelInfo *) NULL)
1197 image->colormap=(PixelInfo *) RelinquishMagickMemory(image->colormap);
1198 if (image->geometry != (char *) NULL)
1199 image->geometry=DestroyString(image->geometry);
1200 DestroyImageProfiles(image);
1201 DestroyImageProperties(image);
1202 DestroyImageArtifacts(image);
1203 if (image->ascii85 != (Ascii85Info *) NULL)
1204 image->ascii85=(Ascii85Info *) RelinquishMagickMemory(image->ascii85);
1205 if (image->image_info != (ImageInfo *) NULL)
1206 image->image_info=DestroyImageInfo(image->image_info);
1207 DestroyBlob(image);
1208 if (image->semaphore != (SemaphoreInfo *) NULL)
1209 RelinquishSemaphoreInfo(&image->semaphore);
1210 image->signature=(~MagickCoreSignature);
1211 image=(Image *) RelinquishMagickMemory(image);
1212 return(image);
1213 }
1214
1215 /*
1216 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1217 % %
1218 % %
1219 % %
1220 % D e s t r o y I m a g e I n f o %
1221 % %
1222 % %
1223 % %
1224 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1225 %
1226 % DestroyImageInfo() deallocates memory associated with an ImageInfo
1227 % structure.
1228 %
1229 % The format of the DestroyImageInfo method is:
1230 %
1231 % ImageInfo *DestroyImageInfo(ImageInfo *image_info)
1232 %
1233 % A description of each parameter follows:
1234 %
1235 % o image_info: the image info.
1236 %
1237 */
DestroyImageInfo(ImageInfo * image_info)1238 MagickExport ImageInfo *DestroyImageInfo(ImageInfo *image_info)
1239 {
1240 assert(image_info != (ImageInfo *) NULL);
1241 assert(image_info->signature == MagickCoreSignature);
1242 if (image_info->debug != MagickFalse)
1243 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
1244 image_info->filename);
1245 if (image_info->size != (char *) NULL)
1246 image_info->size=DestroyString(image_info->size);
1247 if (image_info->extract != (char *) NULL)
1248 image_info->extract=DestroyString(image_info->extract);
1249 if (image_info->scenes != (char *) NULL)
1250 image_info->scenes=DestroyString(image_info->scenes);
1251 if (image_info->page != (char *) NULL)
1252 image_info->page=DestroyString(image_info->page);
1253 if (image_info->sampling_factor != (char *) NULL)
1254 image_info->sampling_factor=DestroyString(
1255 image_info->sampling_factor);
1256 if (image_info->server_name != (char *) NULL)
1257 image_info->server_name=DestroyString(
1258 image_info->server_name);
1259 if (image_info->font != (char *) NULL)
1260 image_info->font=DestroyString(image_info->font);
1261 if (image_info->texture != (char *) NULL)
1262 image_info->texture=DestroyString(image_info->texture);
1263 if (image_info->density != (char *) NULL)
1264 image_info->density=DestroyString(image_info->density);
1265 if (image_info->cache != (void *) NULL)
1266 image_info->cache=DestroyPixelCache(image_info->cache);
1267 if (image_info->profile != (StringInfo *) NULL)
1268 image_info->profile=(void *) DestroyStringInfo((StringInfo *)
1269 image_info->profile);
1270 DestroyImageOptions(image_info);
1271 image_info->signature=(~MagickCoreSignature);
1272 image_info=(ImageInfo *) RelinquishMagickMemory(image_info);
1273 return(image_info);
1274 }
1275
1276 /*
1277 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1278 % %
1279 % %
1280 % %
1281 + D i s a s s o c i a t e I m a g e S t r e a m %
1282 % %
1283 % %
1284 % %
1285 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1286 %
1287 % DisassociateImageStream() disassociates the image stream. It checks if the
1288 % blob of the specified image is referenced by other images. If the reference
1289 % count is higher then 1 a new blob is assigned to the specified image.
1290 %
1291 % The format of the DisassociateImageStream method is:
1292 %
1293 % void DisassociateImageStream(const Image *image)
1294 %
1295 % A description of each parameter follows:
1296 %
1297 % o image: the image.
1298 %
1299 */
DisassociateImageStream(Image * image)1300 MagickExport void DisassociateImageStream(Image *image)
1301 {
1302 assert(image != (Image *) NULL);
1303 assert(image->signature == MagickCoreSignature);
1304 if (image->debug != MagickFalse)
1305 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1306 DisassociateBlob(image);
1307 }
1308
1309 /*
1310 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1311 % %
1312 % %
1313 % %
1314 % G e t I m a g e I n f o %
1315 % %
1316 % %
1317 % %
1318 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1319 %
1320 % GetImageInfo() initializes image_info to default values.
1321 %
1322 % The format of the GetImageInfo method is:
1323 %
1324 % void GetImageInfo(ImageInfo *image_info)
1325 %
1326 % A description of each parameter follows:
1327 %
1328 % o image_info: the image info.
1329 %
1330 */
GetImageInfo(ImageInfo * image_info)1331 MagickExport void GetImageInfo(ImageInfo *image_info)
1332 {
1333 char
1334 *synchronize;
1335
1336 ExceptionInfo
1337 *exception;
1338
1339 /*
1340 File and image dimension members.
1341 */
1342 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1343 assert(image_info != (ImageInfo *) NULL);
1344 (void) ResetMagickMemory(image_info,0,sizeof(*image_info));
1345 image_info->adjoin=MagickTrue;
1346 image_info->interlace=NoInterlace;
1347 image_info->channel=DefaultChannels;
1348 image_info->quality=UndefinedCompressionQuality;
1349 image_info->antialias=MagickTrue;
1350 image_info->dither=MagickTrue;
1351 synchronize=GetEnvironmentValue("MAGICK_SYNCHRONIZE");
1352 if (synchronize != (const char *) NULL)
1353 {
1354 image_info->synchronize=IsStringTrue(synchronize);
1355 synchronize=DestroyString(synchronize);
1356 }
1357 exception=AcquireExceptionInfo();
1358 (void) QueryColorCompliance(AlphaColor,AllCompliance,&image_info->alpha_color,
1359 exception);
1360 (void) QueryColorCompliance(BackgroundColor,AllCompliance,
1361 &image_info->background_color,exception);
1362 (void) QueryColorCompliance(BorderColor,AllCompliance,
1363 &image_info->border_color,exception);
1364 (void) QueryColorCompliance(TransparentColor,AllCompliance,
1365 &image_info->transparent_color,exception);
1366 exception=DestroyExceptionInfo(exception);
1367 image_info->debug=IsEventLogging();
1368 image_info->signature=MagickCoreSignature;
1369 }
1370
1371 /*
1372 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1373 % %
1374 % %
1375 % %
1376 % G e t I m a g e I n f o F i l e %
1377 % %
1378 % %
1379 % %
1380 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1381 %
1382 % GetImageInfoFile() returns the image info file member.
1383 %
1384 % The format of the GetImageInfoFile method is:
1385 %
1386 % FILE *GetImageInfoFile(const ImageInfo *image_info)
1387 %
1388 % A description of each parameter follows:
1389 %
1390 % o image_info: the image info.
1391 %
1392 */
GetImageInfoFile(const ImageInfo * image_info)1393 MagickExport FILE *GetImageInfoFile(const ImageInfo *image_info)
1394 {
1395 return(image_info->file);
1396 }
1397
1398 /*
1399 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1400 % %
1401 % %
1402 % %
1403 % G e t I m a g e M a s k %
1404 % %
1405 % %
1406 % %
1407 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1408 %
1409 % GetImageMask() returns the mask associated with the image.
1410 %
1411 % The format of the GetImageMask method is:
1412 %
1413 % Image *GetImageMask(const Image *image,const PixelMask type,
1414 % ExceptionInfo *exception)
1415 %
1416 % A description of each parameter follows:
1417 %
1418 % o image: the image.
1419 %
1420 % o type: the mask type, ReadPixelMask or WritePixelMask.
1421 %
1422 */
GetImageMask(const Image * image,const PixelMask type,ExceptionInfo * exception)1423 MagickExport Image *GetImageMask(const Image *image,const PixelMask type,
1424 ExceptionInfo *exception)
1425 {
1426 CacheView
1427 *mask_view,
1428 *image_view;
1429
1430 Image
1431 *mask_image;
1432
1433 MagickBooleanType
1434 status;
1435
1436 ssize_t
1437 y;
1438
1439 /*
1440 Get image mask.
1441 */
1442 assert(image != (Image *) NULL);
1443 if (image->debug != MagickFalse)
1444 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1445 assert(image->signature == MagickCoreSignature);
1446 mask_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception);
1447 if (mask_image == (Image *) NULL)
1448 return((Image *) NULL);
1449 status=MagickTrue;
1450 mask_image->alpha_trait=UndefinedPixelTrait;
1451 (void) SetImageColorspace(mask_image,GRAYColorspace,exception);
1452 mask_image->read_mask=MagickFalse;
1453 image_view=AcquireVirtualCacheView(image,exception);
1454 mask_view=AcquireAuthenticCacheView(mask_image,exception);
1455 for (y=0; y < (ssize_t) image->rows; y++)
1456 {
1457 register const Quantum
1458 *magick_restrict p;
1459
1460 register Quantum
1461 *magick_restrict q;
1462
1463 register ssize_t
1464 x;
1465
1466 if (status == MagickFalse)
1467 continue;
1468 p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
1469 q=GetCacheViewAuthenticPixels(mask_view,0,y,mask_image->columns,1,
1470 exception);
1471 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
1472 {
1473 status=MagickFalse;
1474 continue;
1475 }
1476 for (x=0; x < (ssize_t) image->columns; x++)
1477 {
1478 switch (type)
1479 {
1480 case WritePixelMask:
1481 {
1482 SetPixelGray(mask_image,GetPixelWriteMask(image,p),q);
1483 break;
1484 }
1485 default:
1486 {
1487 SetPixelGray(mask_image,GetPixelReadMask(image,p),q);
1488 break;
1489 }
1490 }
1491 p+=GetPixelChannels(image);
1492 q+=GetPixelChannels(mask_image);
1493 }
1494 if (SyncCacheViewAuthenticPixels(mask_view,exception) == MagickFalse)
1495 status=MagickFalse;
1496 }
1497 mask_view=DestroyCacheView(mask_view);
1498 image_view=DestroyCacheView(image_view);
1499 if (status == MagickFalse)
1500 mask_image=DestroyImage(mask_image);
1501 return(mask_image);
1502 }
1503
1504 /*
1505 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1506 % %
1507 % %
1508 % %
1509 + G e t I m a g e R e f e r e n c e C o u n t %
1510 % %
1511 % %
1512 % %
1513 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1514 %
1515 % GetImageReferenceCount() returns the image reference count.
1516 %
1517 % The format of the GetReferenceCount method is:
1518 %
1519 % ssize_t GetImageReferenceCount(Image *image)
1520 %
1521 % A description of each parameter follows:
1522 %
1523 % o image: the image.
1524 %
1525 */
GetImageReferenceCount(Image * image)1526 MagickExport ssize_t GetImageReferenceCount(Image *image)
1527 {
1528 ssize_t
1529 reference_count;
1530
1531 assert(image != (Image *) NULL);
1532 assert(image->signature == MagickCoreSignature);
1533 if (image->debug != MagickFalse)
1534 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1535 LockSemaphoreInfo(image->semaphore);
1536 reference_count=image->reference_count;
1537 UnlockSemaphoreInfo(image->semaphore);
1538 return(reference_count);
1539 }
1540
1541 /*
1542 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1543 % %
1544 % %
1545 % %
1546 % G e t I m a g e V i r t u a l P i x e l M e t h o d %
1547 % %
1548 % %
1549 % %
1550 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1551 %
1552 % GetImageVirtualPixelMethod() gets the "virtual pixels" method for the
1553 % image. A virtual pixel is any pixel access that is outside the boundaries
1554 % of the image cache.
1555 %
1556 % The format of the GetImageVirtualPixelMethod() method is:
1557 %
1558 % VirtualPixelMethod GetImageVirtualPixelMethod(const Image *image)
1559 %
1560 % A description of each parameter follows:
1561 %
1562 % o image: the image.
1563 %
1564 */
GetImageVirtualPixelMethod(const Image * image)1565 MagickExport VirtualPixelMethod GetImageVirtualPixelMethod(const Image *image)
1566 {
1567 assert(image != (Image *) NULL);
1568 assert(image->signature == MagickCoreSignature);
1569 if (image->debug != MagickFalse)
1570 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1571 return(GetPixelCacheVirtualMethod(image));
1572 }
1573
1574 /*
1575 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1576 % %
1577 % %
1578 % %
1579 % I n t e r p r e t I m a g e F i l e n a m e %
1580 % %
1581 % %
1582 % %
1583 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1584 %
1585 % InterpretImageFilename() interprets embedded characters in an image filename.
1586 % The filename length is returned.
1587 %
1588 % The format of the InterpretImageFilename method is:
1589 %
1590 % size_t InterpretImageFilename(const ImageInfo *image_info,Image *image,
1591 % const char *format,int value,char *filename,ExceptionInfo *exception)
1592 %
1593 % A description of each parameter follows.
1594 %
1595 % o image_info: the image info..
1596 %
1597 % o image: the image.
1598 %
1599 % o format: A filename describing the format to use to write the numeric
1600 % argument. Only the first numeric format identifier is replaced.
1601 %
1602 % o value: Numeric value to substitute into format filename.
1603 %
1604 % o filename: return the formatted filename in this character buffer.
1605 %
1606 % o exception: return any errors or warnings in this structure.
1607 %
1608 */
InterpretImageFilename(const ImageInfo * image_info,Image * image,const char * format,int value,char * filename,ExceptionInfo * exception)1609 MagickExport size_t InterpretImageFilename(const ImageInfo *image_info,
1610 Image *image,const char *format,int value,char *filename,
1611 ExceptionInfo *exception)
1612 {
1613 char
1614 *q;
1615
1616 int
1617 c;
1618
1619 MagickBooleanType
1620 canonical;
1621
1622 register const char
1623 *p;
1624
1625 size_t
1626 length;
1627
1628 canonical=MagickFalse;
1629 length=0;
1630 (void) CopyMagickString(filename,format,MagickPathExtent);
1631 for (p=strchr(format,'%'); p != (char *) NULL; p=strchr(p+1,'%'))
1632 {
1633 q=(char *) p+1;
1634 if (*q == '%')
1635 {
1636 p=q+1;
1637 continue;
1638 }
1639 if (*q == '0')
1640 {
1641 ssize_t
1642 foo;
1643
1644 foo=(ssize_t) strtol(q,&q,10);
1645 (void) foo;
1646 }
1647 switch (*q)
1648 {
1649 case 'd':
1650 case 'o':
1651 case 'x':
1652 {
1653 q++;
1654 c=(*q);
1655 *q='\0';
1656 (void) FormatLocaleString(filename+(p-format),(size_t)
1657 (MagickPathExtent-(p-format)),p,value);
1658 *q=c;
1659 (void) ConcatenateMagickString(filename,q,MagickPathExtent);
1660 canonical=MagickTrue;
1661 if (*(q-1) != '%')
1662 break;
1663 p++;
1664 break;
1665 }
1666 case '[':
1667 {
1668 char
1669 pattern[MagickPathExtent];
1670
1671 const char
1672 *option;
1673
1674 register char
1675 *r;
1676
1677 register ssize_t
1678 i;
1679
1680 ssize_t
1681 depth;
1682
1683 /*
1684 Image option.
1685 */
1686 /* FUTURE: Compare update with code from InterpretImageProperties()
1687 Note that a 'filename:' property should not need depth recursion.
1688 */
1689 if (strchr(p,']') == (char *) NULL)
1690 break;
1691 depth=1;
1692 r=q+1;
1693 for (i=0; (i < (MagickPathExtent-1L)) && (*r != '\0'); i++)
1694 {
1695 if (*r == '[')
1696 depth++;
1697 if (*r == ']')
1698 depth--;
1699 if (depth <= 0)
1700 break;
1701 pattern[i]=(*r++);
1702 }
1703 pattern[i]='\0';
1704 if (LocaleNCompare(pattern,"filename:",9) != 0)
1705 break;
1706 option=(const char *) NULL;
1707 if (image != (Image *) NULL)
1708 option=GetImageProperty(image,pattern,exception);
1709 if ((option == (const char *) NULL) && (image != (Image *) NULL))
1710 option=GetImageArtifact(image,pattern);
1711 if ((option == (const char *) NULL) &&
1712 (image_info != (ImageInfo *) NULL))
1713 option=GetImageOption(image_info,pattern);
1714 if (option == (const char *) NULL)
1715 break;
1716 q--;
1717 c=(*q);
1718 *q='\0';
1719 (void) CopyMagickString(filename+(p-format-length),option,(size_t)
1720 (MagickPathExtent-(p-format-length)));
1721 length+=strlen(pattern)-1;
1722 *q=c;
1723 (void) ConcatenateMagickString(filename,r+1,MagickPathExtent);
1724 canonical=MagickTrue;
1725 if (*(q-1) != '%')
1726 break;
1727 p++;
1728 break;
1729 }
1730 default:
1731 break;
1732 }
1733 }
1734 for (q=filename; *q != '\0'; q++)
1735 if ((*q == '%') && (*(q+1) == '%'))
1736 {
1737 (void) CopyMagickString(q,q+1,(size_t) (MagickPathExtent-(q-filename)));
1738 canonical=MagickTrue;
1739 }
1740 if (canonical == MagickFalse)
1741 (void) CopyMagickString(filename,format,MagickPathExtent);
1742 return(strlen(filename));
1743 }
1744
1745 /*
1746 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1747 % %
1748 % %
1749 % %
1750 % I s H i g h D y n a m i c R a n g e I m a g e %
1751 % %
1752 % %
1753 % %
1754 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1755 %
1756 % IsHighDynamicRangeImage() returns MagickTrue if any pixel component is
1757 % non-integer or exceeds the bounds of the quantum depth (e.g. for Q16
1758 % 0..65535.
1759 %
1760 % The format of the IsHighDynamicRangeImage method is:
1761 %
1762 % MagickBooleanType IsHighDynamicRangeImage(const Image *image,
1763 % ExceptionInfo *exception)
1764 %
1765 % A description of each parameter follows:
1766 %
1767 % o image: the image.
1768 %
1769 % o exception: return any errors or warnings in this structure.
1770 %
1771 */
IsHighDynamicRangeImage(const Image * image,ExceptionInfo * exception)1772 MagickExport MagickBooleanType IsHighDynamicRangeImage(const Image *image,
1773 ExceptionInfo *exception)
1774 {
1775 #if !defined(MAGICKCORE_HDRI_SUPPORT)
1776 (void) image;
1777 (void) exception;
1778 return(MagickFalse);
1779 #else
1780 CacheView
1781 *image_view;
1782
1783 MagickBooleanType
1784 status;
1785
1786 ssize_t
1787 y;
1788
1789 assert(image != (Image *) NULL);
1790 assert(image->signature == MagickCoreSignature);
1791 if (image->debug != MagickFalse)
1792 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1793 status=MagickTrue;
1794 image_view=AcquireVirtualCacheView(image,exception);
1795 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1796 #pragma omp parallel for schedule(static,4) shared(status) \
1797 magick_threads(image,image,image->rows,1)
1798 #endif
1799 for (y=0; y < (ssize_t) image->rows; y++)
1800 {
1801 register const Quantum
1802 *p;
1803
1804 register ssize_t
1805 x;
1806
1807 if (status == MagickFalse)
1808 continue;
1809 p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
1810 if (p == (const Quantum *) NULL)
1811 {
1812 status=MagickFalse;
1813 continue;
1814 }
1815 for (x=0; x < (ssize_t) image->columns; x++)
1816 {
1817 register ssize_t
1818 i;
1819
1820 if (GetPixelReadMask(image,p) == 0)
1821 {
1822 p+=GetPixelChannels(image);
1823 continue;
1824 }
1825 for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
1826 {
1827 double
1828 pixel;
1829
1830 PixelTrait
1831 traits;
1832
1833 traits=GetPixelChannelTraits(image,(PixelChannel) i);
1834 if (traits == UndefinedPixelTrait)
1835 continue;
1836 pixel=(double) p[i];
1837 if ((pixel < 0.0) || (pixel > QuantumRange) ||
1838 (pixel != (double) ((QuantumAny) pixel)))
1839 break;
1840 }
1841 p+=GetPixelChannels(image);
1842 if (i < (ssize_t) GetPixelChannels(image))
1843 status=MagickFalse;
1844 }
1845 if (x < (ssize_t) image->columns)
1846 status=MagickFalse;
1847 }
1848 image_view=DestroyCacheView(image_view);
1849 return(status != MagickFalse ? MagickFalse : MagickTrue);
1850 #endif
1851 }
1852
1853 /*
1854 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1855 % %
1856 % %
1857 % %
1858 % I s I m a g e O b j e c t %
1859 % %
1860 % %
1861 % %
1862 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1863 %
1864 % IsImageObject() returns MagickTrue if the image sequence contains a valid
1865 % set of image objects.
1866 %
1867 % The format of the IsImageObject method is:
1868 %
1869 % MagickBooleanType IsImageObject(const Image *image)
1870 %
1871 % A description of each parameter follows:
1872 %
1873 % o image: the image.
1874 %
1875 */
IsImageObject(const Image * image)1876 MagickExport MagickBooleanType IsImageObject(const Image *image)
1877 {
1878 register const Image
1879 *p;
1880
1881 assert(image != (Image *) NULL);
1882 if (image->debug != MagickFalse)
1883 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1884 for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
1885 if (p->signature != MagickCoreSignature)
1886 return(MagickFalse);
1887 return(MagickTrue);
1888 }
1889
1890 /*
1891 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1892 % %
1893 % %
1894 % %
1895 % I s T a i n t I m a g e %
1896 % %
1897 % %
1898 % %
1899 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1900 %
1901 % IsTaintImage() returns MagickTrue any pixel in the image has been altered
1902 % since it was first constituted.
1903 %
1904 % The format of the IsTaintImage method is:
1905 %
1906 % MagickBooleanType IsTaintImage(const Image *image)
1907 %
1908 % A description of each parameter follows:
1909 %
1910 % o image: the image.
1911 %
1912 */
IsTaintImage(const Image * image)1913 MagickExport MagickBooleanType IsTaintImage(const Image *image)
1914 {
1915 char
1916 magick[MagickPathExtent],
1917 filename[MagickPathExtent];
1918
1919 register const Image
1920 *p;
1921
1922 assert(image != (Image *) NULL);
1923 if (image->debug != MagickFalse)
1924 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1925 assert(image->signature == MagickCoreSignature);
1926 (void) CopyMagickString(magick,image->magick,MagickPathExtent);
1927 (void) CopyMagickString(filename,image->filename,MagickPathExtent);
1928 for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
1929 {
1930 if (p->taint != MagickFalse)
1931 return(MagickTrue);
1932 if (LocaleCompare(p->magick,magick) != 0)
1933 return(MagickTrue);
1934 if (LocaleCompare(p->filename,filename) != 0)
1935 return(MagickTrue);
1936 }
1937 return(MagickFalse);
1938 }
1939
1940 /*
1941 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1942 % %
1943 % %
1944 % %
1945 % M o d i f y I m a g e %
1946 % %
1947 % %
1948 % %
1949 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1950 %
1951 % ModifyImage() ensures that there is only a single reference to the image
1952 % to be modified, updating the provided image pointer to point to a clone of
1953 % the original image if necessary.
1954 %
1955 % The format of the ModifyImage method is:
1956 %
1957 % MagickBooleanType ModifyImage(Image *image,ExceptionInfo *exception)
1958 %
1959 % A description of each parameter follows:
1960 %
1961 % o image: the image.
1962 %
1963 % o exception: return any errors or warnings in this structure.
1964 %
1965 */
ModifyImage(Image ** image,ExceptionInfo * exception)1966 MagickExport MagickBooleanType ModifyImage(Image **image,
1967 ExceptionInfo *exception)
1968 {
1969 Image
1970 *clone_image;
1971
1972 assert(image != (Image **) NULL);
1973 assert(*image != (Image *) NULL);
1974 assert((*image)->signature == MagickCoreSignature);
1975 if ((*image)->debug != MagickFalse)
1976 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",(*image)->filename);
1977 if (GetImageReferenceCount(*image) <= 1)
1978 return(MagickTrue);
1979 clone_image=CloneImage(*image,0,0,MagickTrue,exception);
1980 LockSemaphoreInfo((*image)->semaphore);
1981 (*image)->reference_count--;
1982 UnlockSemaphoreInfo((*image)->semaphore);
1983 *image=clone_image;
1984 return(MagickTrue);
1985 }
1986
1987 /*
1988 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1989 % %
1990 % %
1991 % %
1992 % N e w M a g i c k I m a g e %
1993 % %
1994 % %
1995 % %
1996 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1997 %
1998 % NewMagickImage() creates a blank image canvas of the specified size and
1999 % background color.
2000 %
2001 % The format of the NewMagickImage method is:
2002 %
2003 % Image *NewMagickImage(const ImageInfo *image_info,const size_t width,
2004 % const size_t height,const PixelInfo *background,
2005 % ExceptionInfo *exception)
2006 %
2007 % A description of each parameter follows:
2008 %
2009 % o image: the image.
2010 %
2011 % o width: the image width.
2012 %
2013 % o height: the image height.
2014 %
2015 % o background: the image color.
2016 %
2017 % o exception: return any errors or warnings in this structure.
2018 %
2019 */
NewMagickImage(const ImageInfo * image_info,const size_t width,const size_t height,const PixelInfo * background,ExceptionInfo * exception)2020 MagickExport Image *NewMagickImage(const ImageInfo *image_info,
2021 const size_t width,const size_t height,const PixelInfo *background,
2022 ExceptionInfo *exception)
2023 {
2024 CacheView
2025 *image_view;
2026
2027 Image
2028 *image;
2029
2030 MagickBooleanType
2031 status;
2032
2033 ssize_t
2034 y;
2035
2036 assert(image_info != (const ImageInfo *) NULL);
2037 if (image_info->debug != MagickFalse)
2038 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2039 assert(image_info->signature == MagickCoreSignature);
2040 assert(background != (const PixelInfo *) NULL);
2041 image=AcquireImage(image_info,exception);
2042 image->columns=width;
2043 image->rows=height;
2044 image->colorspace=background->colorspace;
2045 image->alpha_trait=background->alpha_trait;
2046 image->fuzz=background->fuzz;
2047 image->depth=background->depth;
2048 status=MagickTrue;
2049 image_view=AcquireAuthenticCacheView(image,exception);
2050 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2051 #pragma omp parallel for schedule(static,4) shared(status) \
2052 magick_threads(image,image,image->rows,1)
2053 #endif
2054 for (y=0; y < (ssize_t) image->rows; y++)
2055 {
2056 register Quantum
2057 *magick_restrict q;
2058
2059 register ssize_t
2060 x;
2061
2062 if (status == MagickFalse)
2063 continue;
2064 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2065 if (q == (Quantum *) NULL)
2066 {
2067 status=MagickFalse;
2068 continue;
2069 }
2070 for (x=0; x < (ssize_t) image->columns; x++)
2071 {
2072 SetPixelViaPixelInfo(image,background,q);
2073 q+=GetPixelChannels(image);
2074 }
2075 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2076 status=MagickFalse;
2077 }
2078 image_view=DestroyCacheView(image_view);
2079 if (status == MagickFalse)
2080 image=DestroyImage(image);
2081 return(image);
2082 }
2083
2084 /*
2085 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2086 % %
2087 % %
2088 % %
2089 % R e f e r e n c e I m a g e %
2090 % %
2091 % %
2092 % %
2093 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2094 %
2095 % ReferenceImage() increments the reference count associated with an image
2096 % returning a pointer to the image.
2097 %
2098 % The format of the ReferenceImage method is:
2099 %
2100 % Image *ReferenceImage(Image *image)
2101 %
2102 % A description of each parameter follows:
2103 %
2104 % o image: the image.
2105 %
2106 */
ReferenceImage(Image * image)2107 MagickExport Image *ReferenceImage(Image *image)
2108 {
2109 assert(image != (Image *) NULL);
2110 if (image->debug != MagickFalse)
2111 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2112 assert(image->signature == MagickCoreSignature);
2113 LockSemaphoreInfo(image->semaphore);
2114 image->reference_count++;
2115 UnlockSemaphoreInfo(image->semaphore);
2116 return(image);
2117 }
2118
2119 /*
2120 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2121 % %
2122 % %
2123 % %
2124 % R e s e t I m a g e P a g e %
2125 % %
2126 % %
2127 % %
2128 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2129 %
2130 % ResetImagePage() resets the image page canvas and position.
2131 %
2132 % The format of the ResetImagePage method is:
2133 %
2134 % MagickBooleanType ResetImagePage(Image *image,const char *page)
2135 %
2136 % A description of each parameter follows:
2137 %
2138 % o image: the image.
2139 %
2140 % o page: the relative page specification.
2141 %
2142 */
ResetImagePage(Image * image,const char * page)2143 MagickExport MagickBooleanType ResetImagePage(Image *image,const char *page)
2144 {
2145 MagickStatusType
2146 flags;
2147
2148 RectangleInfo
2149 geometry;
2150
2151 assert(image != (Image *) NULL);
2152 assert(image->signature == MagickCoreSignature);
2153 if (image->debug != MagickFalse)
2154 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2155 flags=ParseAbsoluteGeometry(page,&geometry);
2156 if ((flags & WidthValue) != 0)
2157 {
2158 if ((flags & HeightValue) == 0)
2159 geometry.height=geometry.width;
2160 image->page.width=geometry.width;
2161 image->page.height=geometry.height;
2162 }
2163 if ((flags & AspectValue) != 0)
2164 {
2165 if ((flags & XValue) != 0)
2166 image->page.x+=geometry.x;
2167 if ((flags & YValue) != 0)
2168 image->page.y+=geometry.y;
2169 }
2170 else
2171 {
2172 if ((flags & XValue) != 0)
2173 {
2174 image->page.x=geometry.x;
2175 if ((image->page.width == 0) && (geometry.x > 0))
2176 image->page.width=image->columns+geometry.x;
2177 }
2178 if ((flags & YValue) != 0)
2179 {
2180 image->page.y=geometry.y;
2181 if ((image->page.height == 0) && (geometry.y > 0))
2182 image->page.height=image->rows+geometry.y;
2183 }
2184 }
2185 return(MagickTrue);
2186 }
2187
2188 /*
2189 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2190 % %
2191 % %
2192 % %
2193 % S e t I m a g e B a c k g r o u n d C o l o r %
2194 % %
2195 % %
2196 % %
2197 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2198 %
2199 % SetImageBackgroundColor() initializes the image pixels to the image
2200 % background color. The background color is defined by the background_color
2201 % member of the image structure.
2202 %
2203 % The format of the SetImage method is:
2204 %
2205 % MagickBooleanType SetImageBackgroundColor(Image *image,
2206 % ExceptionInfo *exception)
2207 %
2208 % A description of each parameter follows:
2209 %
2210 % o image: the image.
2211 %
2212 % o exception: return any errors or warnings in this structure.
2213 %
2214 */
SetImageBackgroundColor(Image * image,ExceptionInfo * exception)2215 MagickExport MagickBooleanType SetImageBackgroundColor(Image *image,
2216 ExceptionInfo *exception)
2217 {
2218 CacheView
2219 *image_view;
2220
2221 MagickBooleanType
2222 status;
2223
2224 PixelInfo
2225 background;
2226
2227 ssize_t
2228 y;
2229
2230 assert(image != (Image *) NULL);
2231 if (image->debug != MagickFalse)
2232 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2233 assert(image->signature == MagickCoreSignature);
2234 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
2235 return(MagickFalse);
2236 ConformPixelInfo(image,&image->background_color,&background,exception);
2237 /*
2238 Set image background color.
2239 */
2240 status=MagickTrue;
2241 image_view=AcquireAuthenticCacheView(image,exception);
2242 for (y=0; y < (ssize_t) image->rows; y++)
2243 {
2244 register Quantum
2245 *magick_restrict q;
2246
2247 register ssize_t
2248 x;
2249
2250 if (status == MagickFalse)
2251 continue;
2252 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2253 if (q == (Quantum *) NULL)
2254 {
2255 status=MagickFalse;
2256 continue;
2257 }
2258 for (x=0; x < (ssize_t) image->columns; x++)
2259 {
2260 SetPixelViaPixelInfo(image,&background,q);
2261 q+=GetPixelChannels(image);
2262 }
2263 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2264 status=MagickFalse;
2265 }
2266 image_view=DestroyCacheView(image_view);
2267 return(status);
2268 }
2269
2270 /*
2271 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2272 % %
2273 % %
2274 % %
2275 % S e t I m a g e C h a n n e l M a s k %
2276 % %
2277 % %
2278 % %
2279 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2280 %
2281 % SetImageChannelMask() sets the image channel mask from the specified channel
2282 % mask.
2283 %
2284 % The format of the SetImageChannelMask method is:
2285 %
2286 % ChannelType SetImageChannelMask(Image *image,
2287 % const ChannelType channel_mask)
2288 %
2289 % A description of each parameter follows:
2290 %
2291 % o image: the image.
2292 %
2293 % o channel_mask: the channel mask.
2294 %
2295 */
SetImageChannelMask(Image * image,const ChannelType channel_mask)2296 MagickExport ChannelType SetImageChannelMask(Image *image,
2297 const ChannelType channel_mask)
2298 {
2299 return(SetPixelChannelMask(image,channel_mask));
2300 }
2301
2302 /*
2303 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2304 % %
2305 % %
2306 % %
2307 % S e t I m a g e C o l o r %
2308 % %
2309 % %
2310 % %
2311 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2312 %
2313 % SetImageColor() set the entire image canvas to the specified color.
2314 %
2315 % The format of the SetImageColor method is:
2316 %
2317 % MagickBooleanType SetImageColor(Image *image,const PixelInfo *color,
2318 % ExeptionInfo *exception)
2319 %
2320 % A description of each parameter follows:
2321 %
2322 % o image: the image.
2323 %
2324 % o background: the image color.
2325 %
2326 % o exception: return any errors or warnings in this structure.
2327 %
2328 */
SetImageColor(Image * image,const PixelInfo * color,ExceptionInfo * exception)2329 MagickExport MagickBooleanType SetImageColor(Image *image,
2330 const PixelInfo *color,ExceptionInfo *exception)
2331 {
2332 CacheView
2333 *image_view;
2334
2335 MagickBooleanType
2336 status;
2337
2338 ssize_t
2339 y;
2340
2341 assert(image != (Image *) NULL);
2342 if (image->debug != MagickFalse)
2343 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2344 assert(image->signature == MagickCoreSignature);
2345 assert(color != (const PixelInfo *) NULL);
2346 image->colorspace=color->colorspace;
2347 image->alpha_trait=color->alpha_trait;
2348 image->fuzz=color->fuzz;
2349 image->depth=color->depth;
2350 status=MagickTrue;
2351 image_view=AcquireAuthenticCacheView(image,exception);
2352 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2353 #pragma omp parallel for schedule(static,4) shared(status) \
2354 magick_threads(image,image,image->rows,1)
2355 #endif
2356 for (y=0; y < (ssize_t) image->rows; y++)
2357 {
2358 register Quantum
2359 *magick_restrict q;
2360
2361 register ssize_t
2362 x;
2363
2364 if (status == MagickFalse)
2365 continue;
2366 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2367 if (q == (Quantum *) NULL)
2368 {
2369 status=MagickFalse;
2370 continue;
2371 }
2372 for (x=0; x < (ssize_t) image->columns; x++)
2373 {
2374 SetPixelViaPixelInfo(image,color,q);
2375 q+=GetPixelChannels(image);
2376 }
2377 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2378 status=MagickFalse;
2379 }
2380 image_view=DestroyCacheView(image_view);
2381 return(status);
2382 }
2383
2384 /*
2385 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2386 % %
2387 % %
2388 % %
2389 % S e t I m a g e S t o r a g e C l a s s %
2390 % %
2391 % %
2392 % %
2393 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2394 %
2395 % SetImageStorageClass() sets the image class: DirectClass for true color
2396 % images or PseudoClass for colormapped images.
2397 %
2398 % The format of the SetImageStorageClass method is:
2399 %
2400 % MagickBooleanType SetImageStorageClass(Image *image,
2401 % const ClassType storage_class,ExceptionInfo *exception)
2402 %
2403 % A description of each parameter follows:
2404 %
2405 % o image: the image.
2406 %
2407 % o storage_class: The image class.
2408 %
2409 % o exception: return any errors or warnings in this structure.
2410 %
2411 */
SetImageStorageClass(Image * image,const ClassType storage_class,ExceptionInfo * exception)2412 MagickExport MagickBooleanType SetImageStorageClass(Image *image,
2413 const ClassType storage_class,ExceptionInfo *exception)
2414 {
2415 image->storage_class=storage_class;
2416 return(SyncImagePixelCache(image,exception));
2417 }
2418
2419 /*
2420 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2421 % %
2422 % %
2423 % %
2424 % S e t I m a g e E x t e n t %
2425 % %
2426 % %
2427 % %
2428 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2429 %
2430 % SetImageExtent() sets the image size (i.e. columns & rows).
2431 %
2432 % The format of the SetImageExtent method is:
2433 %
2434 % MagickBooleanType SetImageExtent(Image *image,const size_t columns,
2435 % const size_t rows,ExceptionInfo *exception)
2436 %
2437 % A description of each parameter follows:
2438 %
2439 % o image: the image.
2440 %
2441 % o columns: The image width in pixels.
2442 %
2443 % o rows: The image height in pixels.
2444 %
2445 % o exception: return any errors or warnings in this structure.
2446 %
2447 */
SetImageExtent(Image * image,const size_t columns,const size_t rows,ExceptionInfo * exception)2448 MagickExport MagickBooleanType SetImageExtent(Image *image,const size_t columns,
2449 const size_t rows,ExceptionInfo *exception)
2450 {
2451 if ((columns == 0) || (rows == 0))
2452 ThrowBinaryException(ImageError,"NegativeOrZeroImageSize",image->filename);
2453 image->columns=columns;
2454 image->rows=rows;
2455 if (image->depth > (8*sizeof(MagickSizeType)))
2456 ThrowBinaryException(ImageError,"ImageDepthNotSupported",image->filename);
2457 return(SyncImagePixelCache(image,exception));
2458 }
2459
2460 /*
2461 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2462 % %
2463 % %
2464 % %
2465 + S e t I m a g e I n f o %
2466 % %
2467 % %
2468 % %
2469 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2470 %
2471 % SetImageInfo() initializes the 'magick' field of the ImageInfo structure.
2472 % It is set to a type of image format based on the prefix or suffix of the
2473 % filename. For example, 'ps:image' returns PS indicating a Postscript image.
2474 % JPEG is returned for this filename: 'image.jpg'. The filename prefix has
2475 % precendence over the suffix. Use an optional index enclosed in brackets
2476 % after a file name to specify a desired scene of a multi-resolution image
2477 % format like Photo CD (e.g. img0001.pcd[4]). A True (non-zero) return value
2478 % indicates success.
2479 %
2480 % The format of the SetImageInfo method is:
2481 %
2482 % MagickBooleanType SetImageInfo(ImageInfo *image_info,
2483 % const unsigned int frames,ExceptionInfo *exception)
2484 %
2485 % A description of each parameter follows:
2486 %
2487 % o image_info: the image info.
2488 %
2489 % o frames: the number of images you intend to write.
2490 %
2491 % o exception: return any errors or warnings in this structure.
2492 %
2493 */
SetImageInfo(ImageInfo * image_info,const unsigned int frames,ExceptionInfo * exception)2494 MagickExport MagickBooleanType SetImageInfo(ImageInfo *image_info,
2495 const unsigned int frames,ExceptionInfo *exception)
2496 {
2497 char
2498 component[MagickPathExtent],
2499 magic[MagickPathExtent],
2500 *q;
2501
2502 const MagicInfo
2503 *magic_info;
2504
2505 const MagickInfo
2506 *magick_info;
2507
2508 ExceptionInfo
2509 *sans_exception;
2510
2511 Image
2512 *image;
2513
2514 MagickBooleanType
2515 status;
2516
2517 register const char
2518 *p;
2519
2520 ssize_t
2521 count;
2522
2523 /*
2524 Look for 'image.format' in filename.
2525 */
2526 assert(image_info != (ImageInfo *) NULL);
2527 assert(image_info->signature == MagickCoreSignature);
2528 if (image_info->debug != MagickFalse)
2529 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
2530 image_info->filename);
2531 *component='\0';
2532 GetPathComponent(image_info->filename,SubimagePath,component);
2533 if (*component != '\0')
2534 {
2535 /*
2536 Look for scene specification (e.g. img0001.pcd[4]).
2537 */
2538 if (IsSceneGeometry(component,MagickFalse) == MagickFalse)
2539 {
2540 if (IsGeometry(component) != MagickFalse)
2541 (void) CloneString(&image_info->extract,component);
2542 }
2543 else
2544 {
2545 size_t
2546 first,
2547 last;
2548
2549 (void) CloneString(&image_info->scenes,component);
2550 image_info->scene=StringToUnsignedLong(image_info->scenes);
2551 image_info->number_scenes=image_info->scene;
2552 p=image_info->scenes;
2553 for (q=(char *) image_info->scenes; *q != '\0'; p++)
2554 {
2555 while ((isspace((int) ((unsigned char) *p)) != 0) || (*p == ','))
2556 p++;
2557 first=(size_t) strtol(p,&q,10);
2558 last=first;
2559 while (isspace((int) ((unsigned char) *q)) != 0)
2560 q++;
2561 if (*q == '-')
2562 last=(size_t) strtol(q+1,&q,10);
2563 if (first > last)
2564 Swap(first,last);
2565 if (first < image_info->scene)
2566 image_info->scene=first;
2567 if (last > image_info->number_scenes)
2568 image_info->number_scenes=last;
2569 p=q;
2570 }
2571 image_info->number_scenes-=image_info->scene-1;
2572 }
2573 }
2574 *component='\0';
2575 if (*image_info->magick == '\0')
2576 GetPathComponent(image_info->filename,ExtensionPath,component);
2577 #if defined(MAGICKCORE_ZLIB_DELEGATE)
2578 if (*component != '\0')
2579 if ((LocaleCompare(component,"gz") == 0) ||
2580 (LocaleCompare(component,"Z") == 0) ||
2581 (LocaleCompare(component,"svgz") == 0) ||
2582 (LocaleCompare(component,"wmz") == 0))
2583 {
2584 char
2585 path[MagickPathExtent];
2586
2587 (void) CopyMagickString(path,image_info->filename,MagickPathExtent);
2588 path[strlen(path)-strlen(component)-1]='\0';
2589 GetPathComponent(path,ExtensionPath,component);
2590 }
2591 #endif
2592 #if defined(MAGICKCORE_BZLIB_DELEGATE)
2593 if (*component != '\0')
2594 if (LocaleCompare(component,"bz2") == 0)
2595 {
2596 char
2597 path[MagickPathExtent];
2598
2599 (void) CopyMagickString(path,image_info->filename,MagickPathExtent);
2600 path[strlen(path)-strlen(component)-1]='\0';
2601 GetPathComponent(path,ExtensionPath,component);
2602 }
2603 #endif
2604 image_info->affirm=MagickFalse;
2605 sans_exception=AcquireExceptionInfo();
2606 if (*component != '\0')
2607 {
2608 MagickFormatType
2609 format_type;
2610
2611 register ssize_t
2612 i;
2613
2614 static const char
2615 *format_type_formats[] =
2616 {
2617 "AUTOTRACE",
2618 "BROWSE",
2619 "DCRAW",
2620 "EDIT",
2621 "LAUNCH",
2622 "MPEG:DECODE",
2623 "MPEG:ENCODE",
2624 "PRINT",
2625 "PS:ALPHA",
2626 "PS:CMYK",
2627 "PS:COLOR",
2628 "PS:GRAY",
2629 "PS:MONO",
2630 "SCAN",
2631 "SHOW",
2632 "WIN",
2633 (char *) NULL
2634 };
2635
2636 /*
2637 User specified image format.
2638 */
2639 (void) CopyMagickString(magic,component,MagickPathExtent);
2640 LocaleUpper(magic);
2641 /*
2642 Look for explicit image formats.
2643 */
2644 format_type=UndefinedFormatType;
2645 magick_info=GetMagickInfo(magic,sans_exception);
2646 if ((magick_info != (const MagickInfo *) NULL) &&
2647 (magick_info->format_type != UndefinedFormatType))
2648 format_type=magick_info->format_type;
2649 i=0;
2650 while ((format_type == UndefinedFormatType) &&
2651 (format_type_formats[i] != (char *) NULL))
2652 {
2653 if ((*magic == *format_type_formats[i]) &&
2654 (LocaleCompare(magic,format_type_formats[i]) == 0))
2655 format_type=ExplicitFormatType;
2656 i++;
2657 }
2658 if (format_type == UndefinedFormatType)
2659 (void) CopyMagickString(image_info->magick,magic,MagickPathExtent);
2660 else
2661 if (format_type == ExplicitFormatType)
2662 {
2663 image_info->affirm=MagickTrue;
2664 (void) CopyMagickString(image_info->magick,magic,MagickPathExtent);
2665 }
2666 if (LocaleCompare(magic,"RGB") == 0)
2667 image_info->affirm=MagickFalse; /* maybe SGI disguised as RGB */
2668 }
2669 /*
2670 Look for explicit 'format:image' in filename.
2671 */
2672 *magic='\0';
2673 GetPathComponent(image_info->filename,MagickPath,magic);
2674 if (*magic == '\0')
2675 {
2676 (void) CopyMagickString(magic,image_info->magick,MagickPathExtent);
2677 magick_info=GetMagickInfo(magic,sans_exception);
2678 GetPathComponent(image_info->filename,CanonicalPath,component);
2679 (void) CopyMagickString(image_info->filename,component,MagickPathExtent);
2680 }
2681 else
2682 {
2683 const DelegateInfo
2684 *delegate_info;
2685
2686 /*
2687 User specified image format.
2688 */
2689 LocaleUpper(magic);
2690 magick_info=GetMagickInfo(magic,sans_exception);
2691 delegate_info=GetDelegateInfo(magic,"*",sans_exception);
2692 if (delegate_info == (const DelegateInfo *) NULL)
2693 delegate_info=GetDelegateInfo("*",magic,sans_exception);
2694 if (((magick_info != (const MagickInfo *) NULL) ||
2695 (delegate_info != (const DelegateInfo *) NULL)) &&
2696 (IsMagickConflict(magic) == MagickFalse))
2697 {
2698 image_info->affirm=MagickTrue;
2699 (void) CopyMagickString(image_info->magick,magic,MagickPathExtent);
2700 GetPathComponent(image_info->filename,CanonicalPath,component);
2701 (void) CopyMagickString(image_info->filename,component,
2702 MagickPathExtent);
2703 }
2704 }
2705 sans_exception=DestroyExceptionInfo(sans_exception);
2706 if ((magick_info == (const MagickInfo *) NULL) ||
2707 (GetMagickEndianSupport(magick_info) == MagickFalse))
2708 image_info->endian=UndefinedEndian;
2709 if ((image_info->adjoin != MagickFalse) && (frames > 1))
2710 {
2711 /*
2712 Test for multiple image support (e.g. image%02d.png).
2713 */
2714 (void) InterpretImageFilename(image_info,(Image *) NULL,
2715 image_info->filename,(int) image_info->scene,component,exception);
2716 if ((LocaleCompare(component,image_info->filename) != 0) &&
2717 (strchr(component,'%') == (char *) NULL))
2718 image_info->adjoin=MagickFalse;
2719 }
2720 if ((image_info->adjoin != MagickFalse) && (frames > 0))
2721 {
2722 /*
2723 Some image formats do not support multiple frames per file.
2724 */
2725 magick_info=GetMagickInfo(magic,exception);
2726 if (magick_info != (const MagickInfo *) NULL)
2727 if (GetMagickAdjoin(magick_info) == MagickFalse)
2728 image_info->adjoin=MagickFalse;
2729 }
2730 if (image_info->affirm != MagickFalse)
2731 return(MagickTrue);
2732 if (frames == 0)
2733 {
2734 unsigned char
2735 *magick;
2736
2737 size_t
2738 magick_size;
2739
2740 /*
2741 Determine the image format from the first few bytes of the file.
2742 */
2743 magick_size=GetMagicPatternExtent(exception);
2744 if (magick_size == 0)
2745 return(MagickFalse);
2746 image=AcquireImage(image_info,exception);
2747 (void) CopyMagickString(image->filename,image_info->filename,
2748 MagickPathExtent);
2749 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
2750 if (status == MagickFalse)
2751 {
2752 image=DestroyImage(image);
2753 return(MagickFalse);
2754 }
2755 if ((IsBlobSeekable(image) == MagickFalse) ||
2756 (IsBlobExempt(image) != MagickFalse))
2757 {
2758 /*
2759 Copy standard input or pipe to temporary file.
2760 */
2761 *component='\0';
2762 status=ImageToFile(image,component,exception);
2763 (void) CloseBlob(image);
2764 if (status == MagickFalse)
2765 {
2766 image=DestroyImage(image);
2767 return(MagickFalse);
2768 }
2769 SetImageInfoFile(image_info,(FILE *) NULL);
2770 (void) CopyMagickString(image->filename,component,MagickPathExtent);
2771 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
2772 if (status == MagickFalse)
2773 {
2774 image=DestroyImage(image);
2775 return(MagickFalse);
2776 }
2777 (void) CopyMagickString(image_info->filename,component,
2778 MagickPathExtent);
2779 image_info->temporary=MagickTrue;
2780 }
2781 magick=(unsigned char *) AcquireMagickMemory(magick_size);
2782 if (magick == (unsigned char *) NULL)
2783 {
2784 (void) CloseBlob(image);
2785 image=DestroyImage(image);
2786 return(MagickFalse);
2787 }
2788 (void) ResetMagickMemory(magick,0,magick_size);
2789 count=ReadBlob(image,magick_size,magick);
2790 (void) SeekBlob(image,-((MagickOffsetType) count),SEEK_CUR);
2791 (void) CloseBlob(image);
2792 image=DestroyImage(image);
2793 /*
2794 Check magic.xml configuration file.
2795 */
2796 sans_exception=AcquireExceptionInfo();
2797 magic_info=GetMagicInfo(magick,(size_t) count,sans_exception);
2798 magick=(unsigned char *) RelinquishMagickMemory(magick);
2799 if ((magic_info != (const MagicInfo *) NULL) &&
2800 (GetMagicName(magic_info) != (char *) NULL))
2801 {
2802 /*
2803 Try to use magick_info that was determined earlier by the extension
2804 */
2805 if ((magick_info != (const MagickInfo *) NULL) &&
2806 (GetMagickUseExtension(magick_info) != MagickFalse) &&
2807 (LocaleCompare(magick_info->module,GetMagicName(
2808 magic_info)) == 0))
2809 (void) CopyMagickString(image_info->magick,magick_info->name,
2810 MagickPathExtent);
2811 else
2812 {
2813 (void) CopyMagickString(image_info->magick,GetMagicName(
2814 magic_info),MagickPathExtent);
2815 magick_info=GetMagickInfo(image_info->magick,sans_exception);
2816 }
2817 if ((magick_info == (const MagickInfo *) NULL) ||
2818 (GetMagickEndianSupport(magick_info) == MagickFalse))
2819 image_info->endian=UndefinedEndian;
2820 sans_exception=DestroyExceptionInfo(sans_exception);
2821 return(MagickTrue);
2822 }
2823 magick_info=GetMagickInfo(image_info->magick,sans_exception);
2824 if ((magick_info == (const MagickInfo *) NULL) ||
2825 (GetMagickEndianSupport(magick_info) == MagickFalse))
2826 image_info->endian=UndefinedEndian;
2827 sans_exception=DestroyExceptionInfo(sans_exception);
2828 }
2829 return(MagickTrue);
2830 }
2831
2832 /*
2833 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2834 % %
2835 % %
2836 % %
2837 % S e t I m a g e I n f o B l o b %
2838 % %
2839 % %
2840 % %
2841 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2842 %
2843 % SetImageInfoBlob() sets the image info blob member.
2844 %
2845 % The format of the SetImageInfoBlob method is:
2846 %
2847 % void SetImageInfoBlob(ImageInfo *image_info,const void *blob,
2848 % const size_t length)
2849 %
2850 % A description of each parameter follows:
2851 %
2852 % o image_info: the image info.
2853 %
2854 % o blob: the blob.
2855 %
2856 % o length: the blob length.
2857 %
2858 */
SetImageInfoBlob(ImageInfo * image_info,const void * blob,const size_t length)2859 MagickExport void SetImageInfoBlob(ImageInfo *image_info,const void *blob,
2860 const size_t length)
2861 {
2862 assert(image_info != (ImageInfo *) NULL);
2863 assert(image_info->signature == MagickCoreSignature);
2864 if (image_info->debug != MagickFalse)
2865 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
2866 image_info->filename);
2867 image_info->blob=(void *) blob;
2868 image_info->length=length;
2869 }
2870
2871 /*
2872 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2873 % %
2874 % %
2875 % %
2876 % S e t I m a g e I n f o F i l e %
2877 % %
2878 % %
2879 % %
2880 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2881 %
2882 % SetImageInfoFile() sets the image info file member.
2883 %
2884 % The format of the SetImageInfoFile method is:
2885 %
2886 % void SetImageInfoFile(ImageInfo *image_info,FILE *file)
2887 %
2888 % A description of each parameter follows:
2889 %
2890 % o image_info: the image info.
2891 %
2892 % o file: the file.
2893 %
2894 */
SetImageInfoFile(ImageInfo * image_info,FILE * file)2895 MagickExport void SetImageInfoFile(ImageInfo *image_info,FILE *file)
2896 {
2897 assert(image_info != (ImageInfo *) NULL);
2898 assert(image_info->signature == MagickCoreSignature);
2899 if (image_info->debug != MagickFalse)
2900 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
2901 image_info->filename);
2902 image_info->file=file;
2903 }
2904
2905 /*
2906 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2907 % %
2908 % %
2909 % %
2910 % S e t I m a g e M a s k %
2911 % %
2912 % %
2913 % %
2914 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2915 %
2916 % SetImageMask() associates a mask with the image. The mask must be the same
2917 % dimensions as the image.
2918 %
2919 % The format of the SetImageMask method is:
2920 %
2921 % MagickBooleanType SetImageMask(Image *image,const PixelMask type,
2922 % const Image *mask,ExceptionInfo *exception)
2923 %
2924 % A description of each parameter follows:
2925 %
2926 % o image: the image.
2927 %
2928 % o type: the mask type, ReadPixelMask or WritePixelMask.
2929 %
2930 % o mask: the image mask.
2931 %
2932 % o exception: return any errors or warnings in this structure.
2933 %
2934 */
SetImageMask(Image * image,const PixelMask type,const Image * mask,ExceptionInfo * exception)2935 MagickExport MagickBooleanType SetImageMask(Image *image,const PixelMask type,
2936 const Image *mask,ExceptionInfo *exception)
2937 {
2938 CacheView
2939 *mask_view,
2940 *image_view;
2941
2942 MagickBooleanType
2943 status;
2944
2945 ssize_t
2946 y;
2947
2948 /*
2949 Set image mask.
2950 */
2951 assert(image != (Image *) NULL);
2952 if (image->debug != MagickFalse)
2953 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2954 assert(image->signature == MagickCoreSignature);
2955 if (mask == (const Image *) NULL)
2956 {
2957 switch (type)
2958 {
2959 case WritePixelMask: image->write_mask=MagickFalse; break;
2960 default: image->read_mask=MagickFalse; break;
2961 }
2962 return(SyncImagePixelCache(image,exception));
2963 }
2964 switch (type)
2965 {
2966 case WritePixelMask: image->write_mask=MagickTrue; break;
2967 default: image->read_mask=MagickTrue; break;
2968 }
2969 if (SyncImagePixelCache(image,exception) == MagickFalse)
2970 return(MagickFalse);
2971 status=MagickTrue;
2972 mask_view=AcquireVirtualCacheView(mask,exception);
2973 image_view=AcquireAuthenticCacheView(image,exception);
2974 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2975 #pragma omp parallel for schedule(static,4) shared(status) \
2976 magick_threads(mask,image,1,1)
2977 #endif
2978 for (y=0; y < (ssize_t) image->rows; y++)
2979 {
2980 register const Quantum
2981 *magick_restrict p;
2982
2983 register Quantum
2984 *magick_restrict q;
2985
2986 register ssize_t
2987 x;
2988
2989 if (status == MagickFalse)
2990 continue;
2991 p=GetCacheViewVirtualPixels(mask_view,0,y,mask->columns,1,exception);
2992 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2993 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
2994 {
2995 status=MagickFalse;
2996 continue;
2997 }
2998 for (x=0; x < (ssize_t) image->columns; x++)
2999 {
3000 MagickRealType
3001 intensity;
3002
3003 intensity=GetPixelIntensity(mask,p);
3004 switch (type)
3005 {
3006 case WritePixelMask:
3007 {
3008 SetPixelWriteMask(image,ClampToQuantum(QuantumRange-intensity),q);
3009 break;
3010 }
3011 default:
3012 {
3013 SetPixelReadMask(image,ClampToQuantum(QuantumRange-intensity),q);
3014 break;
3015 }
3016 }
3017 p+=GetPixelChannels(mask);
3018 q+=GetPixelChannels(image);
3019 }
3020 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
3021 status=MagickFalse;
3022 }
3023 mask_view=DestroyCacheView(mask_view);
3024 image_view=DestroyCacheView(image_view);
3025 return(status);
3026 }
3027
3028 /*
3029 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3030 % %
3031 % %
3032 % %
3033 % S e t I m a g e A l p h a %
3034 % %
3035 % %
3036 % %
3037 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3038 %
3039 % SetImageAlpha() sets the alpha levels of the image.
3040 %
3041 % The format of the SetImageAlpha method is:
3042 %
3043 % MagickBooleanType SetImageAlpha(Image *image,const Quantum alpha,
3044 % ExceptionInfo *exception)
3045 %
3046 % A description of each parameter follows:
3047 %
3048 % o image: the image.
3049 %
3050 % o Alpha: the level of transparency: 0 is fully opaque and QuantumRange is
3051 % fully transparent.
3052 %
3053 */
SetImageAlpha(Image * image,const Quantum alpha,ExceptionInfo * exception)3054 MagickExport MagickBooleanType SetImageAlpha(Image *image,const Quantum alpha,
3055 ExceptionInfo *exception)
3056 {
3057 CacheView
3058 *image_view;
3059
3060 MagickBooleanType
3061 status;
3062
3063 ssize_t
3064 y;
3065
3066 assert(image != (Image *) NULL);
3067 if (image->debug != MagickFalse)
3068 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3069 assert(image->signature == MagickCoreSignature);
3070 image->alpha_trait=BlendPixelTrait;
3071 status=MagickTrue;
3072 image_view=AcquireAuthenticCacheView(image,exception);
3073 #if defined(MAGICKCORE_OPENMP_SUPPORT)
3074 #pragma omp parallel for schedule(static,4) shared(status) \
3075 magick_threads(image,image,image->rows,1)
3076 #endif
3077 for (y=0; y < (ssize_t) image->rows; y++)
3078 {
3079 register Quantum
3080 *magick_restrict q;
3081
3082 register ssize_t
3083 x;
3084
3085 if (status == MagickFalse)
3086 continue;
3087 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
3088 if (q == (Quantum *) NULL)
3089 {
3090 status=MagickFalse;
3091 continue;
3092 }
3093 for (x=0; x < (ssize_t) image->columns; x++)
3094 {
3095 if (GetPixelReadMask(image,q) != 0)
3096 SetPixelAlpha(image,alpha,q);
3097 q+=GetPixelChannels(image);
3098 }
3099 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
3100 status=MagickFalse;
3101 }
3102 image_view=DestroyCacheView(image_view);
3103 return(status);
3104 }
3105
3106 /*
3107 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3108 % %
3109 % %
3110 % %
3111 % S e t I m a g e V i r t u a l P i x e l M e t h o d %
3112 % %
3113 % %
3114 % %
3115 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3116 %
3117 % SetImageVirtualPixelMethod() sets the "virtual pixels" method for the
3118 % image and returns the previous setting. A virtual pixel is any pixel access
3119 % that is outside the boundaries of the image cache.
3120 %
3121 % The format of the SetImageVirtualPixelMethod() method is:
3122 %
3123 % VirtualPixelMethod SetImageVirtualPixelMethod(Image *image,
3124 % const VirtualPixelMethod virtual_pixel_method,ExceptionInfo *exception)
3125 %
3126 % A description of each parameter follows:
3127 %
3128 % o image: the image.
3129 %
3130 % o virtual_pixel_method: choose the type of virtual pixel.
3131 %
3132 % o exception: return any errors or warnings in this structure.
3133 %
3134 */
SetImageVirtualPixelMethod(Image * image,const VirtualPixelMethod virtual_pixel_method,ExceptionInfo * exception)3135 MagickExport VirtualPixelMethod SetImageVirtualPixelMethod(Image *image,
3136 const VirtualPixelMethod virtual_pixel_method,ExceptionInfo *exception)
3137 {
3138 assert(image != (const Image *) NULL);
3139 assert(image->signature == MagickCoreSignature);
3140 if (image->debug != MagickFalse)
3141 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
3142 return(SetPixelCacheVirtualMethod(image,virtual_pixel_method,exception));
3143 }
3144
3145 /*
3146 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3147 % %
3148 % %
3149 % %
3150 % S m u s h I m a g e s %
3151 % %
3152 % %
3153 % %
3154 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3155 %
3156 % SmushImages() takes all images from the current image pointer to the end
3157 % of the image list and smushes them to each other top-to-bottom if the
3158 % stack parameter is true, otherwise left-to-right.
3159 %
3160 % The current gravity setting now effects how the image is justified in the
3161 % final image.
3162 %
3163 % The format of the SmushImages method is:
3164 %
3165 % Image *SmushImages(const Image *images,const MagickBooleanType stack,
3166 % ExceptionInfo *exception)
3167 %
3168 % A description of each parameter follows:
3169 %
3170 % o images: the image sequence.
3171 %
3172 % o stack: A value other than 0 stacks the images top-to-bottom.
3173 %
3174 % o offset: minimum distance in pixels between images.
3175 %
3176 % o exception: return any errors or warnings in this structure.
3177 %
3178 */
3179
SmushXGap(const Image * smush_image,const Image * images,const ssize_t offset,ExceptionInfo * exception)3180 static ssize_t SmushXGap(const Image *smush_image,const Image *images,
3181 const ssize_t offset,ExceptionInfo *exception)
3182 {
3183 CacheView
3184 *left_view,
3185 *right_view;
3186
3187 const Image
3188 *left_image,
3189 *right_image;
3190
3191 RectangleInfo
3192 left_geometry,
3193 right_geometry;
3194
3195 register const Quantum
3196 *p;
3197
3198 register ssize_t
3199 i,
3200 y;
3201
3202 size_t
3203 gap;
3204
3205 ssize_t
3206 x;
3207
3208 if (images->previous == (Image *) NULL)
3209 return(0);
3210 right_image=images;
3211 SetGeometry(smush_image,&right_geometry);
3212 GravityAdjustGeometry(right_image->columns,right_image->rows,
3213 right_image->gravity,&right_geometry);
3214 left_image=images->previous;
3215 SetGeometry(smush_image,&left_geometry);
3216 GravityAdjustGeometry(left_image->columns,left_image->rows,
3217 left_image->gravity,&left_geometry);
3218 gap=right_image->columns;
3219 left_view=AcquireVirtualCacheView(left_image,exception);
3220 right_view=AcquireVirtualCacheView(right_image,exception);
3221 for (y=0; y < (ssize_t) smush_image->rows; y++)
3222 {
3223 for (x=(ssize_t) left_image->columns-1; x > 0; x--)
3224 {
3225 p=GetCacheViewVirtualPixels(left_view,x,left_geometry.y+y,1,1,exception);
3226 if ((p == (const Quantum *) NULL) ||
3227 (GetPixelAlpha(left_image,p) != TransparentAlpha) ||
3228 ((left_image->columns-x-1) >= gap))
3229 break;
3230 }
3231 i=(ssize_t) left_image->columns-x-1;
3232 for (x=0; x < (ssize_t) right_image->columns; x++)
3233 {
3234 p=GetCacheViewVirtualPixels(right_view,x,right_geometry.y+y,1,1,
3235 exception);
3236 if ((p == (const Quantum *) NULL) ||
3237 (GetPixelAlpha(right_image,p) != TransparentAlpha) ||
3238 ((x+i) >= (ssize_t) gap))
3239 break;
3240 }
3241 if ((x+i) < (ssize_t) gap)
3242 gap=(size_t) (x+i);
3243 }
3244 right_view=DestroyCacheView(right_view);
3245 left_view=DestroyCacheView(left_view);
3246 if (y < (ssize_t) smush_image->rows)
3247 return(offset);
3248 return((ssize_t) gap-offset);
3249 }
3250
SmushYGap(const Image * smush_image,const Image * images,const ssize_t offset,ExceptionInfo * exception)3251 static ssize_t SmushYGap(const Image *smush_image,const Image *images,
3252 const ssize_t offset,ExceptionInfo *exception)
3253 {
3254 CacheView
3255 *bottom_view,
3256 *top_view;
3257
3258 const Image
3259 *bottom_image,
3260 *top_image;
3261
3262 RectangleInfo
3263 bottom_geometry,
3264 top_geometry;
3265
3266 register const Quantum
3267 *p;
3268
3269 register ssize_t
3270 i,
3271 x;
3272
3273 size_t
3274 gap;
3275
3276 ssize_t
3277 y;
3278
3279 if (images->previous == (Image *) NULL)
3280 return(0);
3281 bottom_image=images;
3282 SetGeometry(smush_image,&bottom_geometry);
3283 GravityAdjustGeometry(bottom_image->columns,bottom_image->rows,
3284 bottom_image->gravity,&bottom_geometry);
3285 top_image=images->previous;
3286 SetGeometry(smush_image,&top_geometry);
3287 GravityAdjustGeometry(top_image->columns,top_image->rows,top_image->gravity,
3288 &top_geometry);
3289 gap=bottom_image->rows;
3290 top_view=AcquireVirtualCacheView(top_image,exception);
3291 bottom_view=AcquireVirtualCacheView(bottom_image,exception);
3292 for (x=0; x < (ssize_t) smush_image->columns; x++)
3293 {
3294 for (y=(ssize_t) top_image->rows-1; y > 0; y--)
3295 {
3296 p=GetCacheViewVirtualPixels(top_view,top_geometry.x+x,y,1,1,exception);
3297 if ((p == (const Quantum *) NULL) ||
3298 (GetPixelAlpha(top_image,p) != TransparentAlpha) ||
3299 ((top_image->rows-y-1) >= gap))
3300 break;
3301 }
3302 i=(ssize_t) top_image->rows-y-1;
3303 for (y=0; y < (ssize_t) bottom_image->rows; y++)
3304 {
3305 p=GetCacheViewVirtualPixels(bottom_view,bottom_geometry.x+x,y,1,1,
3306 exception);
3307 if ((p == (const Quantum *) NULL) ||
3308 (GetPixelAlpha(bottom_image,p) != TransparentAlpha) ||
3309 ((y+i) >= (ssize_t) gap))
3310 break;
3311 }
3312 if ((y+i) < (ssize_t) gap)
3313 gap=(size_t) (y+i);
3314 }
3315 bottom_view=DestroyCacheView(bottom_view);
3316 top_view=DestroyCacheView(top_view);
3317 if (x < (ssize_t) smush_image->columns)
3318 return(offset);
3319 return((ssize_t) gap-offset);
3320 }
3321
SmushImages(const Image * images,const MagickBooleanType stack,const ssize_t offset,ExceptionInfo * exception)3322 MagickExport Image *SmushImages(const Image *images,
3323 const MagickBooleanType stack,const ssize_t offset,ExceptionInfo *exception)
3324 {
3325 #define SmushImageTag "Smush/Image"
3326
3327 const Image
3328 *image;
3329
3330 Image
3331 *smush_image;
3332
3333 MagickBooleanType
3334 proceed,
3335 status;
3336
3337 MagickOffsetType
3338 n;
3339
3340 PixelTrait
3341 alpha_trait;
3342
3343 RectangleInfo
3344 geometry;
3345
3346 register const Image
3347 *next;
3348
3349 size_t
3350 height,
3351 number_images,
3352 width;
3353
3354 ssize_t
3355 x_offset,
3356 y_offset;
3357
3358 /*
3359 Compute maximum area of smushed area.
3360 */
3361 assert(images != (Image *) NULL);
3362 assert(images->signature == MagickCoreSignature);
3363 if (images->debug != MagickFalse)
3364 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
3365 assert(exception != (ExceptionInfo *) NULL);
3366 assert(exception->signature == MagickCoreSignature);
3367 image=images;
3368 alpha_trait=image->alpha_trait;
3369 number_images=1;
3370 width=image->columns;
3371 height=image->rows;
3372 next=GetNextImageInList(image);
3373 for ( ; next != (Image *) NULL; next=GetNextImageInList(next))
3374 {
3375 if (next->alpha_trait != UndefinedPixelTrait)
3376 alpha_trait=BlendPixelTrait;
3377 number_images++;
3378 if (stack != MagickFalse)
3379 {
3380 if (next->columns > width)
3381 width=next->columns;
3382 height+=next->rows;
3383 if (next->previous != (Image *) NULL)
3384 height+=offset;
3385 continue;
3386 }
3387 width+=next->columns;
3388 if (next->previous != (Image *) NULL)
3389 width+=offset;
3390 if (next->rows > height)
3391 height=next->rows;
3392 }
3393 /*
3394 Smush images.
3395 */
3396 smush_image=CloneImage(image,width,height,MagickTrue,exception);
3397 if (smush_image == (Image *) NULL)
3398 return((Image *) NULL);
3399 if (SetImageStorageClass(smush_image,DirectClass,exception) == MagickFalse)
3400 {
3401 smush_image=DestroyImage(smush_image);
3402 return((Image *) NULL);
3403 }
3404 smush_image->alpha_trait=alpha_trait;
3405 (void) SetImageBackgroundColor(smush_image,exception);
3406 status=MagickTrue;
3407 x_offset=0;
3408 y_offset=0;
3409 for (n=0; n < (MagickOffsetType) number_images; n++)
3410 {
3411 SetGeometry(smush_image,&geometry);
3412 GravityAdjustGeometry(image->columns,image->rows,image->gravity,&geometry);
3413 if (stack != MagickFalse)
3414 {
3415 x_offset-=geometry.x;
3416 y_offset-=SmushYGap(smush_image,image,offset,exception);
3417 }
3418 else
3419 {
3420 x_offset-=SmushXGap(smush_image,image,offset,exception);
3421 y_offset-=geometry.y;
3422 }
3423 status=CompositeImage(smush_image,image,OverCompositeOp,MagickTrue,x_offset,
3424 y_offset,exception);
3425 proceed=SetImageProgress(image,SmushImageTag,n,number_images);
3426 if (proceed == MagickFalse)
3427 break;
3428 if (stack == MagickFalse)
3429 {
3430 x_offset+=(ssize_t) image->columns;
3431 y_offset=0;
3432 }
3433 else
3434 {
3435 x_offset=0;
3436 y_offset+=(ssize_t) image->rows;
3437 }
3438 image=GetNextImageInList(image);
3439 }
3440 if (stack == MagickFalse)
3441 smush_image->columns=(size_t) x_offset;
3442 else
3443 smush_image->rows=(size_t) y_offset;
3444 if (status == MagickFalse)
3445 smush_image=DestroyImage(smush_image);
3446 return(smush_image);
3447 }
3448
3449 /*
3450 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3451 % %
3452 % %
3453 % %
3454 % S t r i p I m a g e %
3455 % %
3456 % %
3457 % %
3458 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3459 %
3460 % StripImage() strips an image of all profiles and comments.
3461 %
3462 % The format of the StripImage method is:
3463 %
3464 % MagickBooleanType StripImage(Image *image,ExceptionInfo *exception)
3465 %
3466 % A description of each parameter follows:
3467 %
3468 % o image: the image.
3469 %
3470 % o exception: return any errors or warnings in this structure.
3471 %
3472 */
StripImage(Image * image,ExceptionInfo * exception)3473 MagickExport MagickBooleanType StripImage(Image *image,ExceptionInfo *exception)
3474 {
3475 MagickBooleanType
3476 status;
3477
3478 assert(image != (Image *) NULL);
3479 if (image->debug != MagickFalse)
3480 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3481 (void) exception;
3482 DestroyImageProfiles(image);
3483 (void) DeleteImageProperty(image,"comment");
3484 (void) DeleteImageProperty(image,"date:create");
3485 (void) DeleteImageProperty(image,"date:modify");
3486 status=SetImageArtifact(image,"png:exclude-chunk",
3487 "bKGD,cHRM,EXIF,gAMA,iCCP,iTXt,sRGB,tEXt,zCCP,zTXt,date");
3488 return(status);
3489 }
3490
3491 /*
3492 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3493 % %
3494 % %
3495 % %
3496 + S y n c I m a g e %
3497 % %
3498 % %
3499 % %
3500 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3501 %
3502 % SyncImage() initializes the red, green, and blue intensities of each pixel
3503 % as defined by the colormap index.
3504 %
3505 % The format of the SyncImage method is:
3506 %
3507 % MagickBooleanType SyncImage(Image *image,ExceptionInfo *exception)
3508 %
3509 % A description of each parameter follows:
3510 %
3511 % o image: the image.
3512 %
3513 % o exception: return any errors or warnings in this structure.
3514 %
3515 */
3516
PushColormapIndex(Image * image,const Quantum index,MagickBooleanType * range_exception)3517 static inline Quantum PushColormapIndex(Image *image,const Quantum index,
3518 MagickBooleanType *range_exception)
3519 {
3520 if ((size_t) index < image->colors)
3521 return(index);
3522 *range_exception=MagickTrue;
3523 return((Quantum) 0);
3524 }
3525
SyncImage(Image * image,ExceptionInfo * exception)3526 MagickExport MagickBooleanType SyncImage(Image *image,ExceptionInfo *exception)
3527 {
3528 CacheView
3529 *image_view;
3530
3531 MagickBooleanType
3532 range_exception,
3533 status,
3534 taint;
3535
3536 ssize_t
3537 y;
3538
3539 assert(image != (Image *) NULL);
3540 if (image->debug != MagickFalse)
3541 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3542 assert(image->signature == MagickCoreSignature);
3543 if (image->storage_class == DirectClass)
3544 return(MagickFalse);
3545 range_exception=MagickFalse;
3546 status=MagickTrue;
3547 taint=image->taint;
3548 image_view=AcquireAuthenticCacheView(image,exception);
3549 #if defined(MAGICKCORE_OPENMP_SUPPORT)
3550 #pragma omp parallel for schedule(static,4) shared(range_exception,status) \
3551 magick_threads(image,image,image->rows,1)
3552 #endif
3553 for (y=0; y < (ssize_t) image->rows; y++)
3554 {
3555 Quantum
3556 index;
3557
3558 register Quantum
3559 *magick_restrict q;
3560
3561 register ssize_t
3562 x;
3563
3564 if (status == MagickFalse)
3565 continue;
3566 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
3567 if (q == (Quantum *) NULL)
3568 {
3569 status=MagickFalse;
3570 continue;
3571 }
3572 for (x=0; x < (ssize_t) image->columns; x++)
3573 {
3574 index=PushColormapIndex(image,GetPixelIndex(image,q),&range_exception);
3575 SetPixelViaPixelInfo(image,image->colormap+(ssize_t) index,q);
3576 q+=GetPixelChannels(image);
3577 }
3578 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
3579 status=MagickFalse;
3580 }
3581 image_view=DestroyCacheView(image_view);
3582 image->taint=taint;
3583 if ((image->ping == MagickFalse) && (range_exception != MagickFalse))
3584 (void) ThrowMagickException(exception,GetMagickModule(),
3585 CorruptImageWarning,"InvalidColormapIndex","`%s'",image->filename);
3586 return(status);
3587 }
3588
3589 /*
3590 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3591 % %
3592 % %
3593 % %
3594 % S y n c I m a g e S e t t i n g s %
3595 % %
3596 % %
3597 % %
3598 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3599 %
3600 % SyncImageSettings() syncs any image_info global options into per-image
3601 % attributes.
3602 %
3603 % Note: in IMv6 free form 'options' were always mapped into 'artifacts', so
3604 % that operations and coders can find such settings. In IMv7 if a desired
3605 % per-image artifact is not set, then it will directly look for a global
3606 % option as a fallback, as such this copy is no longer needed, only the
3607 % link set up.
3608 %
3609 % The format of the SyncImageSettings method is:
3610 %
3611 % MagickBooleanType SyncImageSettings(const ImageInfo *image_info,
3612 % Image *image,ExceptionInfo *exception)
3613 % MagickBooleanType SyncImagesSettings(const ImageInfo *image_info,
3614 % Image *image,ExceptionInfo *exception)
3615 %
3616 % A description of each parameter follows:
3617 %
3618 % o image_info: the image info.
3619 %
3620 % o image: the image.
3621 %
3622 % o exception: return any errors or warnings in this structure.
3623 %
3624 */
3625
SyncImagesSettings(ImageInfo * image_info,Image * images,ExceptionInfo * exception)3626 MagickExport MagickBooleanType SyncImagesSettings(ImageInfo *image_info,
3627 Image *images,ExceptionInfo *exception)
3628 {
3629 Image
3630 *image;
3631
3632 assert(image_info != (const ImageInfo *) NULL);
3633 assert(image_info->signature == MagickCoreSignature);
3634 assert(images != (Image *) NULL);
3635 assert(images->signature == MagickCoreSignature);
3636 if (images->debug != MagickFalse)
3637 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
3638 image=images;
3639 for ( ; image != (Image *) NULL; image=GetNextImageInList(image))
3640 (void) SyncImageSettings(image_info,image,exception);
3641 (void) DeleteImageOption(image_info,"page");
3642 return(MagickTrue);
3643 }
3644
SyncImageSettings(const ImageInfo * image_info,Image * image,ExceptionInfo * exception)3645 MagickExport MagickBooleanType SyncImageSettings(const ImageInfo *image_info,
3646 Image *image,ExceptionInfo *exception)
3647 {
3648 const char
3649 *option;
3650
3651 GeometryInfo
3652 geometry_info;
3653
3654 MagickStatusType
3655 flags;
3656
3657 ResolutionType
3658 units;
3659
3660 /*
3661 Sync image options.
3662 */
3663 assert(image_info != (const ImageInfo *) NULL);
3664 assert(image_info->signature == MagickCoreSignature);
3665 assert(image != (Image *) NULL);
3666 assert(image->signature == MagickCoreSignature);
3667 if (image->debug != MagickFalse)
3668 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
3669 option=GetImageOption(image_info,"alpha-color");
3670 if (option != (const char *) NULL)
3671 (void) QueryColorCompliance(option,AllCompliance,&image->alpha_color,
3672 exception);
3673 option=GetImageOption(image_info,"background");
3674 if (option != (const char *) NULL)
3675 (void) QueryColorCompliance(option,AllCompliance,&image->background_color,
3676 exception);
3677 option=GetImageOption(image_info,"black-point-compensation");
3678 if (option != (const char *) NULL)
3679 image->black_point_compensation=(MagickBooleanType) ParseCommandOption(
3680 MagickBooleanOptions,MagickFalse,option);
3681 option=GetImageOption(image_info,"blue-primary");
3682 if (option != (const char *) NULL)
3683 {
3684 flags=ParseGeometry(option,&geometry_info);
3685 image->chromaticity.blue_primary.x=geometry_info.rho;
3686 image->chromaticity.blue_primary.y=geometry_info.sigma;
3687 if ((flags & SigmaValue) == 0)
3688 image->chromaticity.blue_primary.y=image->chromaticity.blue_primary.x;
3689 }
3690 option=GetImageOption(image_info,"bordercolor");
3691 if (option != (const char *) NULL)
3692 (void) QueryColorCompliance(option,AllCompliance,&image->border_color,
3693 exception);
3694 /* FUTURE: do not sync compose to per-image compose setting here */
3695 option=GetImageOption(image_info,"compose");
3696 if (option != (const char *) NULL)
3697 image->compose=(CompositeOperator) ParseCommandOption(MagickComposeOptions,
3698 MagickFalse,option);
3699 /* -- */
3700 option=GetImageOption(image_info,"compress");
3701 if (option != (const char *) NULL)
3702 image->compression=(CompressionType) ParseCommandOption(
3703 MagickCompressOptions,MagickFalse,option);
3704 option=GetImageOption(image_info,"debug");
3705 if (option != (const char *) NULL)
3706 image->debug=(MagickBooleanType) ParseCommandOption(MagickBooleanOptions,
3707 MagickFalse,option);
3708 option=GetImageOption(image_info,"density");
3709 if (option != (const char *) NULL)
3710 {
3711 GeometryInfo
3712 geometry_info;
3713
3714 flags=ParseGeometry(option,&geometry_info);
3715 image->resolution.x=geometry_info.rho;
3716 image->resolution.y=geometry_info.sigma;
3717 if ((flags & SigmaValue) == 0)
3718 image->resolution.y=image->resolution.x;
3719 }
3720 option=GetImageOption(image_info,"depth");
3721 if (option != (const char *) NULL)
3722 image->depth=StringToUnsignedLong(option);
3723 option=GetImageOption(image_info,"endian");
3724 if (option != (const char *) NULL)
3725 image->endian=(EndianType) ParseCommandOption(MagickEndianOptions,
3726 MagickFalse,option);
3727 option=GetImageOption(image_info,"filter");
3728 if (option != (const char *) NULL)
3729 image->filter=(FilterType) ParseCommandOption(MagickFilterOptions,
3730 MagickFalse,option);
3731 option=GetImageOption(image_info,"fuzz");
3732 if (option != (const char *) NULL)
3733 image->fuzz=StringToDoubleInterval(option,(double) QuantumRange+1.0);
3734 option=GetImageOption(image_info,"gravity");
3735 if (option != (const char *) NULL)
3736 image->gravity=(GravityType) ParseCommandOption(MagickGravityOptions,
3737 MagickFalse,option);
3738 option=GetImageOption(image_info,"green-primary");
3739 if (option != (const char *) NULL)
3740 {
3741 flags=ParseGeometry(option,&geometry_info);
3742 image->chromaticity.green_primary.x=geometry_info.rho;
3743 image->chromaticity.green_primary.y=geometry_info.sigma;
3744 if ((flags & SigmaValue) == 0)
3745 image->chromaticity.green_primary.y=image->chromaticity.green_primary.x;
3746 }
3747 option=GetImageOption(image_info,"intent");
3748 if (option != (const char *) NULL)
3749 image->rendering_intent=(RenderingIntent) ParseCommandOption(
3750 MagickIntentOptions,MagickFalse,option);
3751 option=GetImageOption(image_info,"intensity");
3752 if (option != (const char *) NULL)
3753 image->intensity=(PixelIntensityMethod) ParseCommandOption(
3754 MagickPixelIntensityOptions,MagickFalse,option);
3755 option=GetImageOption(image_info,"interlace");
3756 if (option != (const char *) NULL)
3757 image->interlace=(InterlaceType) ParseCommandOption(MagickInterlaceOptions,
3758 MagickFalse,option);
3759 option=GetImageOption(image_info,"interpolate");
3760 if (option != (const char *) NULL)
3761 image->interpolate=(PixelInterpolateMethod) ParseCommandOption(
3762 MagickInterpolateOptions,MagickFalse,option);
3763 option=GetImageOption(image_info,"loop");
3764 if (option != (const char *) NULL)
3765 image->iterations=StringToUnsignedLong(option);
3766 option=GetImageOption(image_info,"orient");
3767 if (option != (const char *) NULL)
3768 image->orientation=(OrientationType) ParseCommandOption(
3769 MagickOrientationOptions,MagickFalse,option);
3770 option=GetImageOption(image_info,"page");
3771 if (option != (const char *) NULL)
3772 {
3773 char
3774 *geometry;
3775
3776 geometry=GetPageGeometry(option);
3777 flags=ParseAbsoluteGeometry(geometry,&image->page);
3778 geometry=DestroyString(geometry);
3779 }
3780 option=GetImageOption(image_info,"quality");
3781 if (option != (const char *) NULL)
3782 image->quality=StringToUnsignedLong(option);
3783 option=GetImageOption(image_info,"red-primary");
3784 if (option != (const char *) NULL)
3785 {
3786 flags=ParseGeometry(option,&geometry_info);
3787 image->chromaticity.red_primary.x=geometry_info.rho;
3788 image->chromaticity.red_primary.y=geometry_info.sigma;
3789 if ((flags & SigmaValue) == 0)
3790 image->chromaticity.red_primary.y=image->chromaticity.red_primary.x;
3791 }
3792 if (image_info->quality != UndefinedCompressionQuality)
3793 image->quality=image_info->quality;
3794 option=GetImageOption(image_info,"scene");
3795 if (option != (const char *) NULL)
3796 image->scene=StringToUnsignedLong(option);
3797 option=GetImageOption(image_info,"taint");
3798 if (option != (const char *) NULL)
3799 image->taint=(MagickBooleanType) ParseCommandOption(MagickBooleanOptions,
3800 MagickFalse,option);
3801 option=GetImageOption(image_info,"tile-offset");
3802 if (option != (const char *) NULL)
3803 {
3804 char
3805 *geometry;
3806
3807 geometry=GetPageGeometry(option);
3808 flags=ParseAbsoluteGeometry(geometry,&image->tile_offset);
3809 geometry=DestroyString(geometry);
3810 }
3811 option=GetImageOption(image_info,"transparent-color");
3812 if (option != (const char *) NULL)
3813 (void) QueryColorCompliance(option,AllCompliance,&image->transparent_color,
3814 exception);
3815 option=GetImageOption(image_info,"type");
3816 if (option != (const char *) NULL)
3817 image->type=(ImageType) ParseCommandOption(MagickTypeOptions,MagickFalse,
3818 option);
3819 option=GetImageOption(image_info,"units");
3820 units=image_info->units;
3821 if (option != (const char *) NULL)
3822 units=(ResolutionType) ParseCommandOption(MagickResolutionOptions,
3823 MagickFalse,option);
3824 if (units != UndefinedResolution)
3825 {
3826 if (image->units != units)
3827 switch (image->units)
3828 {
3829 case PixelsPerInchResolution:
3830 {
3831 if (units == PixelsPerCentimeterResolution)
3832 {
3833 image->resolution.x/=2.54;
3834 image->resolution.y/=2.54;
3835 }
3836 break;
3837 }
3838 case PixelsPerCentimeterResolution:
3839 {
3840 if (units == PixelsPerInchResolution)
3841 {
3842 image->resolution.x=(double) ((size_t) (100.0*2.54*
3843 image->resolution.x+0.5))/100.0;
3844 image->resolution.y=(double) ((size_t) (100.0*2.54*
3845 image->resolution.y+0.5))/100.0;
3846 }
3847 break;
3848 }
3849 default:
3850 break;
3851 }
3852 image->units=units;
3853 }
3854 option=GetImageOption(image_info,"virtual-pixel");
3855 if (option != (const char *) NULL)
3856 (void) SetImageVirtualPixelMethod(image,(VirtualPixelMethod)
3857 ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,option),
3858 exception);
3859 option=GetImageOption(image_info,"white-point");
3860 if (option != (const char *) NULL)
3861 {
3862 flags=ParseGeometry(option,&geometry_info);
3863 image->chromaticity.white_point.x=geometry_info.rho;
3864 image->chromaticity.white_point.y=geometry_info.sigma;
3865 if ((flags & SigmaValue) == 0)
3866 image->chromaticity.white_point.y=image->chromaticity.white_point.x;
3867 }
3868 /*
3869 Pointer to allow the lookup of pre-image artifact will fallback to a global
3870 option setting/define. This saves a lot of duplication of global options
3871 into per-image artifacts, while ensuring only specifically set per-image
3872 artifacts are preserved when parenthesis ends.
3873 */
3874 if (image->image_info != (ImageInfo *) NULL)
3875 image->image_info=DestroyImageInfo(image->image_info);
3876 image->image_info=CloneImageInfo(image_info);
3877 return(MagickTrue);
3878 }
3879