MagickCore 7.1.2-28
Convert, Edit, Or Compose Bitmap Images
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image.c
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 ImageMagick Studio LLC, a non-profit organization %
21% dedicated to making software imaging solutions freely available. %
22% %
23% You may not use this file except in compliance with the License. You may %
24% obtain a copy of the License at %
25% %
26% https://imagemagick.org/license/ %
27% %
28% Unless required by applicable law or agreed to in writing, software %
29% distributed under the License is distributed on an "AS IS" BASIS, %
30% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31% See the License for the specific language governing permissions and %
32% limitations under the License. %
33% %
34%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35%
36%
37%
38*/
39␌
40/*
41 Include declarations.
42*/
43#include "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/channel.h"
53#include "MagickCore/client.h"
54#include "MagickCore/color.h"
55#include "MagickCore/color-private.h"
56#include "MagickCore/colormap.h"
57#include "MagickCore/colorspace.h"
58#include "MagickCore/colorspace-private.h"
59#include "MagickCore/composite.h"
60#include "MagickCore/composite-private.h"
61#include "MagickCore/compress.h"
62#include "MagickCore/constitute.h"
63#include "MagickCore/delegate.h"
64#include "MagickCore/display.h"
65#include "MagickCore/draw.h"
66#include "MagickCore/enhance.h"
67#include "MagickCore/exception.h"
68#include "MagickCore/exception-private.h"
69#include "MagickCore/gem.h"
70#include "MagickCore/geometry.h"
71#include "MagickCore/histogram.h"
72#include "MagickCore/image-private.h"
73#include "MagickCore/list.h"
74#include "MagickCore/magic.h"
75#include "MagickCore/magick.h"
76#include "MagickCore/magick-private.h"
77#include "MagickCore/memory_.h"
78#include "MagickCore/memory-private.h"
79#include "MagickCore/module.h"
80#include "MagickCore/monitor.h"
81#include "MagickCore/monitor-private.h"
82#include "MagickCore/option.h"
83#include "MagickCore/paint.h"
84#include "MagickCore/pixel-accessor.h"
85#include "MagickCore/profile.h"
86#include "MagickCore/property.h"
87#include "MagickCore/quantize.h"
88#include "MagickCore/random_.h"
89#include "MagickCore/registry.h"
90#include "MagickCore/resource_.h"
91#include "MagickCore/segment.h"
92#include "MagickCore/semaphore.h"
93#include "MagickCore/signature-private.h"
94#include "MagickCore/statistic.h"
95#include "MagickCore/string_.h"
96#include "MagickCore/string-private.h"
97#include "MagickCore/thread-private.h"
98#include "MagickCore/threshold.h"
99#include "MagickCore/timer.h"
100#include "MagickCore/timer-private.h"
101#include "MagickCore/token.h"
102#include "MagickCore/token-private.h"
103#include "MagickCore/utility.h"
104#include "MagickCore/utility-private.h"
105#include "MagickCore/version.h"
106#include "MagickCore/xwindow-private.h"
107␌
108/*
109%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
110% %
111% %
112% %
113% A c q u i r e I m a g e %
114% %
115% %
116% %
117%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
118%
119% AcquireImage() returns a pointer to an image structure initialized to
120% default values.
121%
122% The format of the AcquireImage method is:
123%
124% Image *AcquireImage(const ImageInfo *image_info,ExceptionInfo *exception)
125%
126% A description of each parameter follows:
127%
128% o image_info: Many of the image default values are set from this
129% structure. For example, filename, compression, depth, background color,
130% and others.
131%
132% o exception: return any errors or warnings in this structure.
133%
134*/
135MagickExport Image *AcquireImage(const ImageInfo *image_info,
136 ExceptionInfo *exception)
137{
138 const char
139 *option;
140
141 Image
142 *image;
143
144 MagickSizeType
145 time_limit;
146
147 MagickStatusType
148 flags;
149
150 /*
151 Allocate image structure.
152 */
153 if (IsEventLogging() != MagickFalse)
154 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
155 image=(Image *) AcquireCriticalMemory(sizeof(*image));
156 (void) memset(image,0,sizeof(*image));
157 /*
158 Initialize Image structure.
159 */
160 (void) CopyMagickString(image->magick,"MIFF",MagickPathExtent);
161 image->storage_class=DirectClass;
162 image->depth=MAGICKCORE_QUANTUM_DEPTH;
163 image->colorspace=sRGBColorspace;
164 image->rendering_intent=PerceptualIntent;
165 image->gamma=1.000/2.200;
166 image->chromaticity.red_primary.x=0.6400;
167 image->chromaticity.red_primary.y=0.3300;
168 image->chromaticity.red_primary.z=0.0300;
169 image->chromaticity.green_primary.x=0.3000;
170 image->chromaticity.green_primary.y=0.6000;
171 image->chromaticity.green_primary.z=0.1000;
172 image->chromaticity.blue_primary.x=0.1500;
173 image->chromaticity.blue_primary.y=0.0600;
174 image->chromaticity.blue_primary.z=0.7900;
175 image->chromaticity.white_point.x=0.3127;
176 image->chromaticity.white_point.y=0.3290;
177 image->chromaticity.white_point.z=0.3583;
178 image->interlace=NoInterlace;
179 image->ticks_per_second=UndefinedTicksPerSecond;
180 image->compose=OverCompositeOp;
181 GetPixelInfoRGBA(BackgroundColorRGBA,&image->background_color);
182 GetPixelInfoRGBA(BorderColorRGBA,&image->border_color);
183 GetPixelInfoRGBA(MatteColorRGBA,&image->matte_color);
184 GetPixelInfoRGBA(TransparentColorRGBA,&image->transparent_color);
185 GetTimerInfo(&image->timer);
186 image->cache=AcquirePixelCache(0);
187 image->channel_mask=AllChannels;
188 image->channel_map=AcquirePixelChannelMap();
189 image->blob=CloneBlobInfo((BlobInfo *) NULL);
190#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
191 image->timestamp=0; /* Deterministic for fuzzing */
192#else
193 image->timestamp=time((time_t *) NULL);
194#endif
195 time_limit=GetMagickResourceLimit(TimeResource);
196 if (time_limit != MagickResourceInfinity)
197 image->ttl=image->timestamp+(time_t) time_limit;
198 image->debug=(GetLogEventMask() & (ImageEvent | TransformEvent | CoderEvent))
199 != 0 ? MagickTrue : MagickFalse;
200 image->reference_count=1;
201 image->semaphore=AcquireSemaphoreInfo();
202 image->signature=MagickCoreSignature;
203 if (image_info == (ImageInfo *) NULL)
204 return(image);
205 /*
206 Transfer image info.
207 */
208 SetBlobExempt(image,image_info->file != (FILE *) NULL ? MagickTrue :
209 MagickFalse);
210 (void) CopyMagickString(image->filename,image_info->filename,
211 MagickPathExtent);
212 (void) CopyMagickString(image->magick_filename,image_info->filename,
213 MagickPathExtent);
214 (void) CopyMagickString(image->magick,image_info->magick,MagickPathExtent);
215 if (image_info->size != (char *) NULL)
216 {
217 (void) ParseAbsoluteGeometry(image_info->size,&image->extract_info);
218 image->columns=image->extract_info.width;
219 image->rows=image->extract_info.height;
220 image->offset=image->extract_info.x;
221 image->extract_info.x=0;
222 image->extract_info.y=0;
223 }
224 if (image_info->extract != (char *) NULL)
225 {
226 RectangleInfo
227 geometry;
228
229 (void) memset(&geometry,0,sizeof(geometry));
230 flags=ParseAbsoluteGeometry(image_info->extract,&geometry);
231 if (((flags & XValue) != 0) || ((flags & YValue) != 0))
232 {
233 image->extract_info=geometry;
234 Swap(image->columns,image->extract_info.width);
235 Swap(image->rows,image->extract_info.height);
236 }
237 }
238 image->compression=image_info->compression;
239 image->quality=image_info->quality;
240 image->endian=image_info->endian;
241 image->interlace=image_info->interlace;
242 image->units=image_info->units;
243 if (image_info->density != (char *) NULL)
244 {
245 GeometryInfo
246 geometry_info;
247
248 flags=ParseGeometry(image_info->density,&geometry_info);
249 if ((flags & RhoValue) != 0)
250 image->resolution.x=geometry_info.rho;
251 image->resolution.y=image->resolution.x;
252 if ((flags & SigmaValue) != 0)
253 image->resolution.y=geometry_info.sigma;
254 }
255 if (image_info->page != (char *) NULL)
256 {
257 char
258 *geometry;
259
260 image->page=image->extract_info;
261 geometry=GetPageGeometry(image_info->page);
262 (void) ParseAbsoluteGeometry(geometry,&image->page);
263 geometry=DestroyString(geometry);
264 }
265 if (image_info->depth != 0)
266 image->depth=image_info->depth;
267 image->dither=image_info->dither;
268 image->matte_color=image_info->matte_color;
269 image->background_color=image_info->background_color;
270 image->border_color=image_info->border_color;
271 image->transparent_color=image_info->transparent_color;
272 image->ping=image_info->ping;
273 image->progress_monitor=image_info->progress_monitor;
274 image->client_data=image_info->client_data;
275 if (image_info->cache != (void *) NULL)
276 ClonePixelCacheMethods(image->cache,image_info->cache);
277 /*
278 Set all global options that map to per-image settings.
279 */
280 (void) SyncImageSettings(image_info,image,exception);
281 /*
282 Global options that are only set for new images.
283 */
284 option=GetImageOption(image_info,"delay");
285 if (option != (const char *) NULL)
286 {
287 GeometryInfo
288 geometry_info;
289
290 flags=ParseGeometry(option,&geometry_info);
291 if ((flags & GreaterValue) != 0)
292 {
293 if ((double) image->delay > floor(geometry_info.rho+0.5))
294 image->delay=(size_t) CastDoubleToSsizeT(floor(geometry_info.rho+
295 0.5));
296 }
297 else
298 if ((flags & LessValue) != 0)
299 {
300 if ((double) image->delay < floor(geometry_info.rho+0.5))
301 image->ticks_per_second=CastDoubleToSsizeT(floor(
302 geometry_info.sigma+0.5));
303 }
304 else
305 image->delay=(size_t) CastDoubleToSsizeT(floor(geometry_info.rho+
306 0.5));
307 if ((flags & SigmaValue) != 0)
308 image->ticks_per_second=CastDoubleToSsizeT(floor(geometry_info.sigma+
309 0.5));
310 }
311 option=GetImageOption(image_info,"dispose");
312 if (option != (const char *) NULL)
313 image->dispose=(DisposeType) ParseCommandOption(MagickDisposeOptions,
314 MagickFalse,option);
315 return(image);
316}
317␌
318/*
319%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
320% %
321% %
322% %
323% A c q u i r e I m a g e I n f o %
324% %
325% %
326% %
327%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
328%
329% AcquireImageInfo() allocates the ImageInfo structure.
330%
331% The format of the AcquireImageInfo method is:
332%
333% ImageInfo *AcquireImageInfo(void)
334%
335*/
336MagickExport ImageInfo *AcquireImageInfo(void)
337{
338 ImageInfo
339 *image_info;
340
341 image_info=(ImageInfo *) AcquireCriticalMemory(sizeof(*image_info));
342 GetImageInfo(image_info);
343 return(image_info);
344}
345␌
346/*
347%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
348% %
349% %
350% %
351% A c q u i r e N e x t I m a g e %
352% %
353% %
354% %
355%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
356%
357% AcquireNextImage() initializes the next image in a sequence to
358% default values. The next member of image points to the newly allocated
359% image. If there is a memory shortage, next is assigned NULL.
360%
361% The format of the AcquireNextImage method is:
362%
363% void AcquireNextImage(const ImageInfo *image_info,Image *image,
364% ExceptionInfo *exception)
365%
366% A description of each parameter follows:
367%
368% o image_info: Many of the image default values are set from this
369% structure. For example, filename, compression, depth, background color,
370% and others.
371%
372% o image: the image.
373%
374% o exception: return any errors or warnings in this structure.
375%
376*/
377MagickExport void AcquireNextImage(const ImageInfo *image_info,Image *image,
378 ExceptionInfo *exception)
379{
380 /*
381 Allocate image structure.
382 */
383 assert(image != (Image *) NULL);
384 assert(image->signature == MagickCoreSignature);
385 if (IsEventLogging() != MagickFalse)
386 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
387 image->next=AcquireImage(image_info,exception);
388 if (GetNextImageInList(image) == (Image *) NULL)
389 return;
390 (void) CopyMagickString(GetNextImageInList(image)->filename,image->filename,
391 MagickPathExtent);
392 if (image_info != (ImageInfo *) NULL)
393 (void) CopyMagickString(GetNextImageInList(image)->filename,
394 image_info->filename,MagickPathExtent);
395 DestroyBlob(GetNextImageInList(image));
396 image->next->blob=ReferenceBlob(image->blob);
397 image->next->endian=image->endian;
398 image->next->scene=image->scene+1;
399 image->next->previous=image;
400}
401␌
402/*
403%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
404% %
405% %
406% %
407% A p p e n d I m a g e s %
408% %
409% %
410% %
411%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
412%
413% AppendImages() takes all images from the current image pointer to the end
414% of the image list and appends them to each other top-to-bottom if the
415% stack parameter is true, otherwise left-to-right.
416%
417% The current gravity setting effects how the image is justified in the
418% final image.
419%
420% The format of the AppendImages method is:
421%
422% Image *AppendImages(const Image *images,const MagickBooleanType stack,
423% ExceptionInfo *exception)
424%
425% A description of each parameter follows:
426%
427% o images: the image sequence.
428%
429% o stack: A value other than 0 stacks the images top-to-bottom.
430%
431% o exception: return any errors or warnings in this structure.
432%
433*/
434MagickExport Image *AppendImages(const Image *images,
435 const MagickBooleanType stack,ExceptionInfo *exception)
436{
437#define AppendImageTag "Append/Image"
438
439 CacheView
440 *append_view;
441
442 Image
443 *append_image;
444
445 ImageType
446 image_type;
447
448 MagickBooleanType
449 homogeneous_colorspace,
450 status;
451
452 MagickOffsetType
453 n;
454
455 PixelTrait
456 alpha_trait;
457
458 RectangleInfo
459 geometry;
460
461 const Image
462 *next;
463
464 size_t
465 depth,
466 height,
467 number_images,
468 width;
469
470 ssize_t
471 x_offset,
472 y,
473 y_offset;
474
475 /*
476 Compute maximum area of appended area.
477 */
478 assert(images != (Image *) NULL);
479 assert(images->signature == MagickCoreSignature);
480 assert(exception != (ExceptionInfo *) NULL);
481 assert(exception->signature == MagickCoreSignature);
482 if (IsEventLogging() != MagickFalse)
483 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
484 alpha_trait=images->alpha_trait;
485 number_images=1;
486 width=images->columns;
487 height=images->rows;
488 depth=images->depth;
489 image_type=images->type;
490 homogeneous_colorspace=MagickTrue;
491 next=GetNextImageInList(images);
492 for ( ; next != (Image *) NULL; next=GetNextImageInList(next))
493 {
494 if (next->depth > depth)
495 depth=next->depth;
496 if (next->type != images->type)
497 image_type=UndefinedType;
498 if (next->colorspace != images->colorspace)
499 homogeneous_colorspace=MagickFalse;
500 if (next->alpha_trait != UndefinedPixelTrait)
501 alpha_trait=BlendPixelTrait;
502 number_images++;
503 if (stack != MagickFalse)
504 {
505 if (next->columns > width)
506 width=next->columns;
507 height+=next->rows;
508 continue;
509 }
510 width+=next->columns;
511 if (next->rows > height)
512 height=next->rows;
513 }
514 /*
515 Append images.
516 */
517 append_image=CloneImage(images,width,height,MagickTrue,exception);
518 if (append_image == (Image *) NULL)
519 return((Image *) NULL);
520 if (image_type != BilevelType)
521 {
522 if (SetImageStorageClass(append_image,DirectClass,exception) == MagickFalse)
523 {
524 append_image=DestroyImage(append_image);
525 return((Image *) NULL);
526 }
527 if (homogeneous_colorspace == MagickFalse)
528 (void) SetImageColorspace(append_image,sRGBColorspace,exception);
529 }
530 append_image->depth=depth;
531 append_image->alpha_trait=alpha_trait;
532 append_image->page=images->page;
533 (void) SetImageBackgroundColor(append_image,exception);
534 status=MagickTrue;
535 x_offset=0;
536 y_offset=0;
537 next=images;
538 append_view=AcquireAuthenticCacheView(append_image,exception);
539 for (n=0; n < (MagickOffsetType) number_images; n++)
540 {
541 CacheView
542 *image_view;
543
544 MagickBooleanType
545 proceed;
546
547 SetGeometry(append_image,&geometry);
548 GravityAdjustGeometry(next->columns,next->rows,next->gravity,&geometry);
549 if (stack != MagickFalse)
550 x_offset-=geometry.x;
551 else
552 y_offset-=geometry.y;
553 image_view=AcquireVirtualCacheView(next,exception);
554#if defined(MAGICKCORE_OPENMP_SUPPORT)
555 #pragma omp parallel for schedule(static) shared(status) \
556 magick_number_threads(next,next,next->rows,2)
557#endif
558 for (y=0; y < (ssize_t) next->rows; y++)
559 {
560 MagickBooleanType
561 sync;
562
563 PixelInfo
564 pixel;
565
566 const Quantum
567 *magick_restrict p;
568
569 Quantum
570 *magick_restrict q;
571
572 ssize_t
573 x;
574
575 if (status == MagickFalse)
576 continue;
577 p=GetCacheViewVirtualPixels(image_view,0,y,next->columns,1,exception);
578 q=QueueCacheViewAuthenticPixels(append_view,x_offset,y+y_offset,
579 next->columns,1,exception);
580 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
581 {
582 status=MagickFalse;
583 continue;
584 }
585 GetPixelInfo(next,&pixel);
586 for (x=0; x < (ssize_t) next->columns; x++)
587 {
588 GetPixelInfoPixel(next,p,&pixel);
589 SetPixelViaPixelInfo(append_image,&pixel,q);
590 p+=(ptrdiff_t) GetPixelChannels(next);
591 q+=(ptrdiff_t) GetPixelChannels(append_image);
592 }
593 sync=SyncCacheViewAuthenticPixels(append_view,exception);
594 if (sync == MagickFalse)
595 status=MagickFalse;
596 }
597 image_view=DestroyCacheView(image_view);
598 if (stack == MagickFalse)
599 {
600 x_offset+=(ssize_t) next->columns;
601 y_offset=0;
602 }
603 else
604 {
605 x_offset=0;
606 y_offset+=(ssize_t) next->rows;
607 }
608 proceed=SetImageProgress(append_image,AppendImageTag,n,number_images);
609 if (proceed == MagickFalse)
610 break;
611 next=GetNextImageInList(next);
612 }
613 append_view=DestroyCacheView(append_view);
614 if (status == MagickFalse)
615 append_image=DestroyImage(append_image);
616 return(append_image);
617}
618␌
619/*
620%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
621% %
622% %
623% %
624% C a t c h I m a g e E x c e p t i o n %
625% %
626% %
627% %
628%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
629%
630% CatchImageException() returns if no exceptions are found in the image
631% sequence, otherwise it determines the most severe exception and reports
632% it as a warning or error depending on the severity.
633%
634% The format of the CatchImageException method is:
635%
636% ExceptionType CatchImageException(Image *image)
637%
638% A description of each parameter follows:
639%
640% o image: An image sequence.
641%
642*/
643MagickExport ExceptionType CatchImageException(Image *image)
644{
645 ExceptionInfo
646 *exception;
647
648 ExceptionType
649 severity;
650
651 assert(image != (const Image *) NULL);
652 assert(image->signature == MagickCoreSignature);
653 if (IsEventLogging() != MagickFalse)
654 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
655 exception=AcquireExceptionInfo();
656 CatchException(exception);
657 severity=exception->severity;
658 exception=DestroyExceptionInfo(exception);
659 return(severity);
660}
661␌
662/*
663%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
664% %
665% %
666% %
667% C l i p I m a g e P a t h %
668% %
669% %
670% %
671%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
672%
673% ClipImagePath() sets the image clip mask based any clipping path information
674% if it exists.
675%
676% The format of the ClipImagePath method is:
677%
678% MagickBooleanType ClipImagePath(Image *image,const char *pathname,
679% const MagickBooleanType inside,ExceptionInfo *exception)
680%
681% A description of each parameter follows:
682%
683% o image: the image.
684%
685% o pathname: name of clipping path resource. If name is preceded by #, use
686% clipping path numbered by name.
687%
688% o inside: if non-zero, later operations take effect inside clipping path.
689% Otherwise later operations take effect outside clipping path.
690%
691% o exception: return any errors or warnings in this structure.
692%
693*/
694
695MagickExport MagickBooleanType ClipImage(Image *image,ExceptionInfo *exception)
696{
697 return(ClipImagePath(image,"#1",MagickTrue,exception));
698}
699
700MagickExport MagickBooleanType ClipImagePath(Image *image,const char *pathname,
701 const MagickBooleanType inside,ExceptionInfo *exception)
702{
703#define ClipImagePathTag "ClipPath/Image"
704
705 char
706 *property,
707 *sanitized_pathname;
708
709 const char
710 *value;
711
712 Image
713 *clip_mask;
714
715 ImageInfo
716 *image_info;
717
718 assert(image != (const Image *) NULL);
719 assert(image->signature == MagickCoreSignature);
720 assert(pathname != NULL);
721 if (IsEventLogging() != MagickFalse)
722 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
723 property=AcquireString(pathname);
724 (void) FormatLocaleString(property,MagickPathExtent,"8BIM:1999,2998:%s",
725 pathname);
726 value=GetImageProperty(image,property,exception);
727 property=DestroyString(property);
728 if (value == (const char *) NULL)
729 {
730 ThrowFileException(exception,OptionError,"NoClipPathDefined",
731 image->filename);
732 return(MagickFalse);
733 }
734 image_info=AcquireImageInfo();
735 (void) CopyMagickString(image_info->filename,image->filename,
736 MagickPathExtent);
737 (void) ConcatenateMagickString(image_info->filename,"_",MagickPathExtent);
738 sanitized_pathname=SanitizeString(pathname);
739 (void) ConcatenateMagickString(image_info->filename,sanitized_pathname,
740 MagickPathExtent);
741 sanitized_pathname=DestroyString(sanitized_pathname);
742 clip_mask=BlobToImage(image_info,value,strlen(value),exception);
743 image_info=DestroyImageInfo(image_info);
744 if (clip_mask == (Image *) NULL)
745 return(MagickFalse);
746 if (clip_mask->storage_class == PseudoClass)
747 {
748 (void) SyncImage(clip_mask,exception);
749 if (SetImageStorageClass(clip_mask,DirectClass,exception) == MagickFalse)
750 return(MagickFalse);
751 }
752 if (inside != MagickFalse)
753 (void) NegateImage(clip_mask,MagickFalse,exception);
754 (void) FormatLocaleString(clip_mask->magick_filename,MagickPathExtent,
755 "8BIM:1999,2998:%s\nPS",pathname);
756 (void) SetImageMask(image,WritePixelMask,clip_mask,exception);
757 clip_mask=DestroyImage(clip_mask);
758 return(MagickTrue);
759}
760␌
761/*
762%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
763% %
764% %
765% %
766% C l o n e I m a g e %
767% %
768% %
769% %
770%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
771%
772% CloneImage() copies an image and returns the copy as a new image object.
773%
774% If the specified columns and rows is 0, an exact copy of the image is
775% returned, otherwise the pixel data is undefined and must be initialized
776% with the QueueAuthenticPixels() and SyncAuthenticPixels() methods. On
777% failure, a NULL image is returned and exception describes the reason for the
778% failure.
779%
780% The format of the CloneImage method is:
781%
782% Image *CloneImage(const Image *image,const size_t columns,
783% const size_t rows,const MagickBooleanType orphan,
784% ExceptionInfo *exception)
785%
786% A description of each parameter follows:
787%
788% o image: the image.
789%
790% o columns: the number of columns in the cloned image.
791%
792% o rows: the number of rows in the cloned image.
793%
794% o detach: With a value other than 0, the cloned image is detached from
795% its parent I/O stream.
796%
797% o exception: return any errors or warnings in this structure.
798%
799*/
800MagickExport Image *CloneImage(const Image *image,const size_t columns,
801 const size_t rows,const MagickBooleanType detach,ExceptionInfo *exception)
802{
803 double
804 scale_x,
805 scale_y;
806
807 Image
808 *clone_image;
809
810 size_t
811 length;
812
813 /*
814 Clone the image.
815 */
816 assert(image != (const Image *) NULL);
817 assert(image->signature == MagickCoreSignature);
818 assert(exception != (ExceptionInfo *) NULL);
819 assert(exception->signature == MagickCoreSignature);
820 if (IsEventLogging() != MagickFalse)
821 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
822 if ((image->columns == 0) || (image->rows == 0))
823 {
824 (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError,
825 "NegativeOrZeroImageSize","`%s'",image->filename);
826 return((Image *) NULL);
827 }
828 clone_image=(Image *) AcquireCriticalMemory(sizeof(*clone_image));
829 (void) memset(clone_image,0,sizeof(*clone_image));
830 clone_image->signature=MagickCoreSignature;
831 clone_image->storage_class=image->storage_class;
832 clone_image->number_channels=image->number_channels;
833 clone_image->number_meta_channels=image->number_meta_channels;
834 clone_image->metacontent_extent=image->metacontent_extent;
835 clone_image->colorspace=image->colorspace;
836 clone_image->alpha_trait=image->alpha_trait;
837 clone_image->channels=image->channels;
838 clone_image->mask_trait=image->mask_trait;
839 clone_image->columns=image->columns;
840 clone_image->rows=image->rows;
841 clone_image->dither=image->dither;
842 clone_image->image_info=CloneImageInfo(image->image_info);
843 (void) CloneImageProfiles(clone_image,image);
844 (void) CloneImageProperties(clone_image,image);
845 (void) CloneImageArtifacts(clone_image,image);
846 GetTimerInfo(&clone_image->timer);
847 if (image->ascii85 != (void *) NULL)
848 Ascii85Initialize(clone_image);
849 clone_image->extent=image->extent;
850 clone_image->magick_columns=image->magick_columns;
851 clone_image->magick_rows=image->magick_rows;
852 clone_image->type=image->type;
853 clone_image->channel_mask=image->channel_mask;
854 clone_image->channel_map=ClonePixelChannelMap(image->channel_map);
855 (void) CopyMagickString(clone_image->magick_filename,image->magick_filename,
856 MagickPathExtent);
857 (void) CopyMagickString(clone_image->magick,image->magick,MagickPathExtent);
858 (void) CopyMagickString(clone_image->filename,image->filename,
859 MagickPathExtent);
860 clone_image->progress_monitor=image->progress_monitor;
861 clone_image->client_data=image->client_data;
862 clone_image->reference_count=1;
863 clone_image->next=image->next;
864 clone_image->previous=image->previous;
865 clone_image->list=NewImageList();
866 if (detach == MagickFalse)
867 clone_image->blob=ReferenceBlob(image->blob);
868 else
869 {
870 clone_image->next=NewImageList();
871 clone_image->previous=NewImageList();
872 clone_image->blob=CloneBlobInfo((BlobInfo *) NULL);
873 }
874 clone_image->ping=image->ping;
875 clone_image->timestamp=image->timestamp;
876 clone_image->ttl=image->ttl;
877 clone_image->debug=image->debug;
878 clone_image->semaphore=AcquireSemaphoreInfo();
879 if (image->colormap != (PixelInfo *) NULL)
880 {
881 /*
882 Allocate and copy the image colormap.
883 */
884 clone_image->colors=image->colors;
885 length=(size_t) image->colors;
886 clone_image->colormap=(PixelInfo *) AcquireQuantumMemory(length+1,
887 sizeof(*clone_image->colormap));
888 if (clone_image->colormap == (PixelInfo *) NULL)
889 {
890 clone_image=DestroyImage(clone_image);
891 ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
892 }
893 (void) memcpy(clone_image->colormap,image->colormap,length*
894 sizeof(*clone_image->colormap));
895 }
896 if ((columns == 0) || (rows == 0))
897 {
898 if (image->montage != (char *) NULL)
899 (void) CloneString(&clone_image->montage,image->montage);
900 if (image->directory != (char *) NULL)
901 (void) CloneString(&clone_image->directory,image->directory);
902 clone_image->cache=ReferencePixelCache(image->cache);
903 return(clone_image);
904 }
905 scale_x=1.0;
906 scale_y=1.0;
907 if (image->columns != 0)
908 scale_x=(double) columns/(double) image->columns;
909 if (image->rows != 0)
910 scale_y=(double) rows/(double) image->rows;
911 clone_image->page.width=(size_t) CastDoubleToSsizeT(floor(scale_x*
912 image->page.width+0.5));
913 clone_image->page.height=(size_t) CastDoubleToSsizeT(floor(scale_y*
914 image->page.height+0.5));
915 if (MagickAbsoluteValue(scale_x-scale_y) < 2.0)
916 scale_x=scale_y=MagickMin(scale_x,scale_y);
917 clone_image->page.x=CastDoubleToSsizeT(ceil(scale_x*image->page.x-0.5));
918 clone_image->tile_offset.x=CastDoubleToSsizeT(ceil(scale_x*
919 image->tile_offset.x-0.5));
920 clone_image->page.y=CastDoubleToSsizeT(ceil(scale_y*image->page.y-0.5));
921 clone_image->tile_offset.y=CastDoubleToSsizeT(ceil(scale_y*
922 image->tile_offset.y-0.5));
923 clone_image->cache=ClonePixelCache(image->cache);
924 if (SetImageExtent(clone_image,columns,rows,exception) == MagickFalse)
925 clone_image=DestroyImage(clone_image);
926 return(clone_image);
927}
928␌
929/*
930%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
931% %
932% %
933% %
934% C l o n e I m a g e I n f o %
935% %
936% %
937% %
938%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
939%
940% CloneImageInfo() makes a copy of the given image info structure. If
941% NULL is specified, a new image info structure is created initialized to
942% default values.
943%
944% The format of the CloneImageInfo method is:
945%
946% ImageInfo *CloneImageInfo(const ImageInfo *image_info)
947%
948% A description of each parameter follows:
949%
950% o image_info: the image info.
951%
952*/
953MagickExport ImageInfo *CloneImageInfo(const ImageInfo *image_info)
954{
955 ImageInfo
956 *clone_info;
957
958 clone_info=AcquireImageInfo();
959 if (image_info == (ImageInfo *) NULL)
960 return(clone_info);
961 clone_info->compression=image_info->compression;
962 clone_info->temporary=image_info->temporary;
963 clone_info->adjoin=image_info->adjoin;
964 clone_info->antialias=image_info->antialias;
965 clone_info->scene=image_info->scene;
966 clone_info->number_scenes=image_info->number_scenes;
967 clone_info->depth=image_info->depth;
968 if (image_info->size != (char *) NULL)
969 (void) CloneString(&clone_info->size,image_info->size);
970 if (image_info->extract != (char *) NULL)
971 (void) CloneString(&clone_info->extract,image_info->extract);
972 if (image_info->scenes != (char *) NULL)
973 (void) CloneString(&clone_info->scenes,image_info->scenes);
974 if (image_info->page != (char *) NULL)
975 (void) CloneString(&clone_info->page,image_info->page);
976 clone_info->interlace=image_info->interlace;
977 clone_info->endian=image_info->endian;
978 clone_info->units=image_info->units;
979 clone_info->quality=image_info->quality;
980 if (image_info->sampling_factor != (char *) NULL)
981 (void) CloneString(&clone_info->sampling_factor,
982 image_info->sampling_factor);
983 if (image_info->server_name != (char *) NULL)
984 (void) CloneString(&clone_info->server_name,image_info->server_name);
985 if (image_info->font != (char *) NULL)
986 (void) CloneString(&clone_info->font,image_info->font);
987 if (image_info->texture != (char *) NULL)
988 (void) CloneString(&clone_info->texture,image_info->texture);
989 if (image_info->density != (char *) NULL)
990 (void) CloneString(&clone_info->density,image_info->density);
991 clone_info->pointsize=image_info->pointsize;
992 clone_info->fuzz=image_info->fuzz;
993 clone_info->matte_color=image_info->matte_color;
994 clone_info->background_color=image_info->background_color;
995 clone_info->border_color=image_info->border_color;
996 clone_info->transparent_color=image_info->transparent_color;
997 clone_info->dither=image_info->dither;
998 clone_info->monochrome=image_info->monochrome;
999 clone_info->colorspace=image_info->colorspace;
1000 clone_info->type=image_info->type;
1001 clone_info->orientation=image_info->orientation;
1002 clone_info->ping=image_info->ping;
1003 clone_info->verbose=image_info->verbose;
1004 clone_info->progress_monitor=image_info->progress_monitor;
1005 clone_info->client_data=image_info->client_data;
1006 clone_info->cache=image_info->cache;
1007 if (image_info->cache != (void *) NULL)
1008 clone_info->cache=ReferencePixelCache(image_info->cache);
1009 if (image_info->profile != (void *) NULL)
1010 clone_info->profile=(void *) CloneStringInfo((StringInfo *)
1011 image_info->profile);
1012 SetImageInfoFile(clone_info,image_info->file);
1013 SetImageInfoBlob(clone_info,image_info->blob,image_info->length);
1014 clone_info->stream=image_info->stream;
1015 clone_info->custom_stream=image_info->custom_stream;
1016 (void) CopyMagickString(clone_info->magick,image_info->magick,
1017 MagickPathExtent);
1018 (void) CopyMagickString(clone_info->unique,image_info->unique,
1019 MagickPathExtent);
1020 (void) CopyMagickString(clone_info->filename,image_info->filename,
1021 MagickPathExtent);
1022 clone_info->channel=image_info->channel;
1023 (void) CloneImageOptions(clone_info,image_info);
1024 clone_info->debug=image_info->debug;
1025 clone_info->signature=image_info->signature;
1026 return(clone_info);
1027}
1028␌
1029/*
1030%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1031% %
1032% %
1033% %
1034% C o p y I m a g e P i x e l s %
1035% %
1036% %
1037% %
1038%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1039%
1040% CopyImagePixels() copies pixels from the source image as defined by the
1041% geometry the destination image at the specified offset.
1042%
1043% The format of the CopyImagePixels method is:
1044%
1045% MagickBooleanType CopyImagePixels(Image *image,const Image *source_image,
1046% const RectangleInfo *geometry,const OffsetInfo *offset,
1047% ExceptionInfo *exception)
1048%
1049% A description of each parameter follows:
1050%
1051% o image: the destination image.
1052%
1053% o source_image: the source image.
1054%
1055% o geometry: define the dimensions of the source pixel rectangle.
1056%
1057% o offset: define the offset in the destination image.
1058%
1059% o exception: return any errors or warnings in this structure.
1060%
1061*/
1062MagickExport MagickBooleanType CopyImagePixels(Image *image,
1063 const Image *source_image,const RectangleInfo *geometry,
1064 const OffsetInfo *offset,ExceptionInfo *exception)
1065{
1066#define CopyImageTag "Copy/Image"
1067
1068 CacheView
1069 *image_view,
1070 *source_view;
1071
1072 MagickBooleanType
1073 status;
1074
1075 MagickOffsetType
1076 progress;
1077
1078 ssize_t
1079 y;
1080
1081 assert(image != (Image *) NULL);
1082 assert(source_image != (Image *) NULL);
1083 assert(geometry != (RectangleInfo *) NULL);
1084 assert(offset != (OffsetInfo *) NULL);
1085 if (IsEventLogging() != MagickFalse)
1086 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1087 if ((offset->x < 0) || (offset->y < 0) ||
1088 ((offset->x+(ssize_t) geometry->width) > (ssize_t) image->columns) ||
1089 ((offset->y+(ssize_t) geometry->height) > (ssize_t) image->rows))
1090 ThrowBinaryException(OptionError,"GeometryDoesNotContainImage",
1091 image->filename);
1092 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
1093 return(MagickFalse);
1094 /*
1095 Copy image pixels.
1096 */
1097 status=MagickTrue;
1098 progress=0;
1099 source_view=AcquireVirtualCacheView(source_image,exception);
1100 image_view=AcquireAuthenticCacheView(image,exception);
1101#if defined(MAGICKCORE_OPENMP_SUPPORT)
1102 #pragma omp parallel for schedule(static) shared(progress,status) \
1103 magick_number_threads(image,source_image,geometry->height,2)
1104#endif
1105 for (y=0; y < (ssize_t) geometry->height; y++)
1106 {
1107 MagickBooleanType
1108 sync;
1109
1110 const Quantum
1111 *magick_restrict p;
1112
1113 ssize_t
1114 x;
1115
1116 Quantum
1117 *magick_restrict q;
1118
1119 if (status == MagickFalse)
1120 continue;
1121 p=GetCacheViewVirtualPixels(source_view,geometry->x,y+geometry->y,
1122 geometry->width,1,exception);
1123 q=QueueCacheViewAuthenticPixels(image_view,offset->x,y+offset->y,
1124 geometry->width,1,exception);
1125 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
1126 {
1127 status=MagickFalse;
1128 continue;
1129 }
1130 for (x=0; x < (ssize_t) geometry->width; x++)
1131 {
1132 ssize_t
1133 i;
1134
1135 for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
1136 {
1137 PixelChannel channel = GetPixelChannelChannel(image,i);
1138 PixelTrait traits = GetPixelChannelTraits(image,channel);
1139 PixelTrait source_traits=GetPixelChannelTraits(source_image,channel);
1140 if ((traits == UndefinedPixelTrait) ||
1141 ((traits & UpdatePixelTrait) == 0) ||
1142 (source_traits == UndefinedPixelTrait))
1143 continue;
1144 SetPixelChannel(image,channel,p[i],q);
1145 }
1146 p+=(ptrdiff_t) GetPixelChannels(source_image);
1147 q+=(ptrdiff_t) GetPixelChannels(image);
1148 }
1149 sync=SyncCacheViewAuthenticPixels(image_view,exception);
1150 if (sync == MagickFalse)
1151 status=MagickFalse;
1152 if (image->progress_monitor != (MagickProgressMonitor) NULL)
1153 {
1154 MagickBooleanType
1155 proceed;
1156
1157#if defined(MAGICKCORE_OPENMP_SUPPORT)
1158 #pragma omp atomic
1159#endif
1160 progress++;
1161 proceed=SetImageProgress(image,CopyImageTag,progress,image->rows);
1162 if (proceed == MagickFalse)
1163 status=MagickFalse;
1164 }
1165 }
1166 source_view=DestroyCacheView(source_view);
1167 image_view=DestroyCacheView(image_view);
1168 return(status);
1169}
1170␌
1171/*
1172%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1173% %
1174% %
1175% %
1176% D e s t r o y I m a g e %
1177% %
1178% %
1179% %
1180%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1181%
1182% DestroyImage() dereferences an image, deallocating memory associated with
1183% the image if the reference count becomes zero.
1184%
1185% The format of the DestroyImage method is:
1186%
1187% Image *DestroyImage(Image *image)
1188%
1189% A description of each parameter follows:
1190%
1191% o image: the image.
1192%
1193*/
1194MagickExport Image *DestroyImage(Image *image)
1195{
1196 MagickBooleanType
1197 destroy;
1198
1199 /*
1200 Dereference image.
1201 */
1202 assert(image != (Image *) NULL);
1203 assert(image->signature == MagickCoreSignature);
1204 if (IsEventLogging() != MagickFalse)
1205 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1206 destroy=MagickFalse;
1207 LockSemaphoreInfo(image->semaphore);
1208 image->reference_count--;
1209 if (image->reference_count == 0)
1210 destroy=MagickTrue;
1211 UnlockSemaphoreInfo(image->semaphore);
1212 if (destroy == MagickFalse)
1213 return((Image *) NULL);
1214 /*
1215 Destroy image.
1216 */
1217 DestroyImagePixels(image);
1218 image->channel_map=DestroyPixelChannelMap(image->channel_map);
1219 if (image->montage != (char *) NULL)
1220 image->montage=DestroyString(image->montage);
1221 if (image->directory != (char *) NULL)
1222 image->directory=DestroyString(image->directory);
1223 if (image->colormap != (PixelInfo *) NULL)
1224 image->colormap=(PixelInfo *) RelinquishMagickMemory(image->colormap);
1225 if (image->geometry != (char *) NULL)
1226 image->geometry=DestroyString(image->geometry);
1227 DestroyImageProfiles(image);
1228 DestroyImageProperties(image);
1229 DestroyImageArtifacts(image);
1230 if (image->ascii85 != (Ascii85Info *) NULL)
1231 image->ascii85=(Ascii85Info *) RelinquishMagickMemory(image->ascii85);
1232 if (image->image_info != (ImageInfo *) NULL)
1233 image->image_info=DestroyImageInfo(image->image_info);
1234 DestroyBlob(image);
1235 if (image->semaphore != (SemaphoreInfo *) NULL)
1236 RelinquishSemaphoreInfo(&image->semaphore);
1237 image->signature=(~MagickCoreSignature);
1238 image=(Image *) RelinquishMagickMemory(image);
1239 return(image);
1240}
1241␌
1242/*
1243%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1244% %
1245% %
1246% %
1247% D e s t r o y I m a g e I n f o %
1248% %
1249% %
1250% %
1251%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1252%
1253% DestroyImageInfo() deallocates memory associated with an ImageInfo
1254% structure.
1255%
1256% The format of the DestroyImageInfo method is:
1257%
1258% ImageInfo *DestroyImageInfo(ImageInfo *image_info)
1259%
1260% A description of each parameter follows:
1261%
1262% o image_info: the image info.
1263%
1264*/
1265MagickExport ImageInfo *DestroyImageInfo(ImageInfo *image_info)
1266{
1267 assert(image_info != (ImageInfo *) NULL);
1268 assert(image_info->signature == MagickCoreSignature);
1269 if (IsEventLogging() != MagickFalse)
1270 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
1271 image_info->filename);
1272 if (image_info->size != (char *) NULL)
1273 image_info->size=DestroyString(image_info->size);
1274 if (image_info->extract != (char *) NULL)
1275 image_info->extract=DestroyString(image_info->extract);
1276 if (image_info->scenes != (char *) NULL)
1277 image_info->scenes=DestroyString(image_info->scenes);
1278 if (image_info->page != (char *) NULL)
1279 image_info->page=DestroyString(image_info->page);
1280 if (image_info->sampling_factor != (char *) NULL)
1281 image_info->sampling_factor=DestroyString(
1282 image_info->sampling_factor);
1283 if (image_info->server_name != (char *) NULL)
1284 image_info->server_name=DestroyString(
1285 image_info->server_name);
1286 if (image_info->font != (char *) NULL)
1287 image_info->font=DestroyString(image_info->font);
1288 if (image_info->texture != (char *) NULL)
1289 image_info->texture=DestroyString(image_info->texture);
1290 if (image_info->density != (char *) NULL)
1291 image_info->density=DestroyString(image_info->density);
1292 if (image_info->cache != (void *) NULL)
1293 image_info->cache=DestroyPixelCache(image_info->cache);
1294 if (image_info->profile != (StringInfo *) NULL)
1295 image_info->profile=(void *) DestroyStringInfo((StringInfo *)
1296 image_info->profile);
1297 DestroyImageOptions(image_info);
1298 image_info->signature=(~MagickCoreSignature);
1299 image_info=(ImageInfo *) RelinquishMagickMemory(image_info);
1300 return(image_info);
1301}
1302␌
1303/*
1304%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1305% %
1306% %
1307% %
1308+ D i s a s s o c i a t e I m a g e S t r e a m %
1309% %
1310% %
1311% %
1312%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1313%
1314% DisassociateImageStream() disassociates the image stream. It checks if the
1315% blob of the specified image is referenced by other images. If the reference
1316% count is higher then 1 a new blob is assigned to the specified image.
1317%
1318% The format of the DisassociateImageStream method is:
1319%
1320% void DisassociateImageStream(const Image *image)
1321%
1322% A description of each parameter follows:
1323%
1324% o image: the image.
1325%
1326*/
1327MagickExport void DisassociateImageStream(Image *image)
1328{
1329 assert(image != (Image *) NULL);
1330 assert(image->signature == MagickCoreSignature);
1331 if (IsEventLogging() != MagickFalse)
1332 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1333 DisassociateBlob(image);
1334}
1335␌
1336/*
1337%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1338% %
1339% %
1340% %
1341% G e t I m a g e I n f o %
1342% %
1343% %
1344% %
1345%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1346%
1347% GetImageInfo() initializes image_info to default values.
1348%
1349% The format of the GetImageInfo method is:
1350%
1351% void GetImageInfo(ImageInfo *image_info)
1352%
1353% A description of each parameter follows:
1354%
1355% o image_info: the image info.
1356%
1357*/
1358MagickExport void GetImageInfo(ImageInfo *image_info)
1359{
1360 char
1361 *synchronize;
1362
1363 /*
1364 File and image dimension members.
1365 */
1366 assert(image_info != (ImageInfo *) NULL);
1367 if (IsEventLogging() != MagickFalse)
1368 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1369 (void) memset(image_info,0,sizeof(*image_info));
1370 image_info->adjoin=MagickTrue;
1371 image_info->interlace=NoInterlace;
1372 image_info->channel=AllChannels;
1373 image_info->quality=UndefinedCompressionQuality;
1374 image_info->antialias=MagickTrue;
1375 image_info->dither=MagickTrue;
1376 image_info->depth=0;
1377 synchronize=GetEnvironmentValue("MAGICK_SYNCHRONIZE");
1378 if (synchronize != (const char *) NULL)
1379 {
1380 image_info->synchronize=IsStringTrue(synchronize);
1381 synchronize=DestroyString(synchronize);
1382 }
1383 GetPixelInfoRGBA(BackgroundColorRGBA,&image_info->background_color);
1384 GetPixelInfoRGBA(BorderColorRGBA,&image_info->border_color);
1385 GetPixelInfoRGBA(MatteColorRGBA,&image_info->matte_color);
1386 GetPixelInfoRGBA(TransparentColorRGBA,&image_info->transparent_color);
1387 image_info->debug=(GetLogEventMask() & ImageEvent) != 0 ? MagickTrue :
1388 MagickFalse;
1389 image_info->signature=MagickCoreSignature;
1390}
1391␌
1392/*
1393%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1394% %
1395% %
1396% %
1397% G e t I m a g e I n f o F i l e %
1398% %
1399% %
1400% %
1401%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1402%
1403% GetImageInfoFile() returns the image info file member.
1404%
1405% The format of the GetImageInfoFile method is:
1406%
1407% FILE *GetImageInfoFile(const ImageInfo *image_info)
1408%
1409% A description of each parameter follows:
1410%
1411% o image_info: the image info.
1412%
1413*/
1414MagickExport FILE *GetImageInfoFile(const ImageInfo *image_info)
1415{
1416 return(image_info->file);
1417}
1418␌
1419/*
1420%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1421% %
1422% %
1423% %
1424% G e t I m a g e M a s k %
1425% %
1426% %
1427% %
1428%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1429%
1430% GetImageMask() returns the mask associated with the image.
1431%
1432% The format of the GetImageMask method is:
1433%
1434% Image *GetImageMask(const Image *image,const PixelMask type,
1435% ExceptionInfo *exception)
1436%
1437% A description of each parameter follows:
1438%
1439% o image: the image.
1440%
1441% o type: the mask type, ReadPixelMask or WritePixelMask.
1442%
1443*/
1444MagickExport Image *GetImageMask(const Image *image,const PixelMask type,
1445 ExceptionInfo *exception)
1446{
1447 CacheView
1448 *mask_view,
1449 *image_view;
1450
1451 Image
1452 *mask_image;
1453
1454 MagickBooleanType
1455 status;
1456
1457 ssize_t
1458 y;
1459
1460 /*
1461 Get image mask.
1462 */
1463 assert(image != (Image *) NULL);
1464 assert(image->signature == MagickCoreSignature);
1465 if (IsEventLogging() != MagickFalse)
1466 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1467 switch (type)
1468 {
1469 case ReadPixelMask:
1470 {
1471 if ((image->channels & ReadMaskChannel) == 0)
1472 return((Image *) NULL);
1473 break;
1474 }
1475 case WritePixelMask:
1476 {
1477 if ((image->channels & WriteMaskChannel) == 0)
1478 return((Image *) NULL);
1479 break;
1480 }
1481 default:
1482 {
1483 if ((image->channels & CompositeMaskChannel) == 0)
1484 return((Image *) NULL);
1485 break;
1486 }
1487 }
1488 mask_image=AcquireImage((ImageInfo *) NULL,exception);
1489 status=SetImageExtent(mask_image,image->columns,image->rows,exception);
1490 if (status == MagickFalse)
1491 return(DestroyImage(mask_image));
1492 status=MagickTrue;
1493 mask_image->alpha_trait=UndefinedPixelTrait;
1494 (void) SetImageColorspace(mask_image,GRAYColorspace,exception);
1495 image_view=AcquireVirtualCacheView(image,exception);
1496 mask_view=AcquireAuthenticCacheView(mask_image,exception);
1497#if defined(MAGICKCORE_OPENMP_SUPPORT)
1498 #pragma omp parallel for schedule(static) shared(status) \
1499 magick_number_threads(image,image,image->rows,2)
1500#endif
1501 for (y=0; y < (ssize_t) image->rows; y++)
1502 {
1503 const Quantum
1504 *magick_restrict p;
1505
1506 Quantum
1507 *magick_restrict q;
1508
1509 ssize_t
1510 x;
1511
1512 if (status == MagickFalse)
1513 continue;
1514 p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
1515 q=GetCacheViewAuthenticPixels(mask_view,0,y,mask_image->columns,1,
1516 exception);
1517 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
1518 {
1519 status=MagickFalse;
1520 continue;
1521 }
1522 for (x=0; x < (ssize_t) image->columns; x++)
1523 {
1524 switch (type)
1525 {
1526 case ReadPixelMask:
1527 {
1528 SetPixelGray(mask_image,GetPixelReadMask(image,p),q);
1529 break;
1530 }
1531 case WritePixelMask:
1532 {
1533 SetPixelGray(mask_image,GetPixelWriteMask(image,p),q);
1534 break;
1535 }
1536 default:
1537 {
1538 SetPixelGray(mask_image,GetPixelCompositeMask(image,p),q);
1539 break;
1540 }
1541 }
1542 p+=(ptrdiff_t) GetPixelChannels(image);
1543 q+=(ptrdiff_t) GetPixelChannels(mask_image);
1544 }
1545 if (SyncCacheViewAuthenticPixels(mask_view,exception) == MagickFalse)
1546 status=MagickFalse;
1547 }
1548 mask_view=DestroyCacheView(mask_view);
1549 image_view=DestroyCacheView(image_view);
1550 if (status == MagickFalse)
1551 mask_image=DestroyImage(mask_image);
1552 return(mask_image);
1553}
1554␌
1555/*
1556%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1557% %
1558% %
1559% %
1560+ G e t I m a g e R e f e r e n c e C o u n t %
1561% %
1562% %
1563% %
1564%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1565%
1566% GetImageReferenceCount() returns the image reference count.
1567%
1568% The format of the GetReferenceCount method is:
1569%
1570% ssize_t GetImageReferenceCount(Image *image)
1571%
1572% A description of each parameter follows:
1573%
1574% o image: the image.
1575%
1576*/
1577MagickExport ssize_t GetImageReferenceCount(Image *image)
1578{
1579 ssize_t
1580 reference_count;
1581
1582 assert(image != (Image *) NULL);
1583 assert(image->signature == MagickCoreSignature);
1584 if (IsEventLogging() != MagickFalse)
1585 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1586 LockSemaphoreInfo(image->semaphore);
1587 reference_count=image->reference_count;
1588 UnlockSemaphoreInfo(image->semaphore);
1589 return(reference_count);
1590}
1591␌
1592/*
1593%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1594% %
1595% %
1596% %
1597% 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 %
1598% %
1599% %
1600% %
1601%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1602%
1603% GetImageVirtualPixelMethod() gets the "virtual pixels" method for the
1604% image. A virtual pixel is any pixel access that is outside the boundaries
1605% of the image cache.
1606%
1607% The format of the GetImageVirtualPixelMethod() method is:
1608%
1609% VirtualPixelMethod GetImageVirtualPixelMethod(const Image *image)
1610%
1611% A description of each parameter follows:
1612%
1613% o image: the image.
1614%
1615*/
1616MagickExport VirtualPixelMethod GetImageVirtualPixelMethod(const Image *image)
1617{
1618 assert(image != (Image *) NULL);
1619 assert(image->signature == MagickCoreSignature);
1620 if (IsEventLogging() != MagickFalse)
1621 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1622 return(GetPixelCacheVirtualMethod(image));
1623}
1624␌
1625/*
1626%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1627% %
1628% %
1629% %
1630% I n t e r p r e t I m a g e F i l e n a m e %
1631% %
1632% %
1633% %
1634%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1635%
1636% InterpretImageFilename() interprets embedded characters in an image filename.
1637% The filename length is returned.
1638%
1639% The format of the InterpretImageFilename method is:
1640%
1641% size_t InterpretImageFilename(const ImageInfo *image_info,Image *image,
1642% const char *format,int value,char *filename,ExceptionInfo *exception)
1643%
1644% A description of each parameter follows.
1645%
1646% o image_info: the image info.
1647%
1648% o image: the image.
1649%
1650% o format: A filename describing the format to use to write the numeric
1651% argument. Only the first numeric format identifier is replaced.
1652%
1653% o value: Numeric value to substitute into format filename.
1654%
1655% o filename: return the formatted filename in this character buffer.
1656%
1657% o exception: return any errors or warnings in this structure.
1658%
1659*/
1660
1661static inline MagickBooleanType IsValidFormatSpecifier(const char *start,
1662 const char *end)
1663{
1664 char
1665 specifier = end[-1];
1666
1667 size_t
1668 length = (size_t) (end-start);
1669
1670 /*
1671 Is this a valid format specifier?
1672 */
1673 if ((specifier != 'd') && (specifier != 'x') && (specifier != 'o'))
1674 return(MagickFalse);
1675 if ((length == 1) && (*start == specifier))
1676 return(MagickTrue);
1677 if (length >= 2)
1678 {
1679 size_t
1680 i = 0;
1681
1682 if (*start == '0')
1683 {
1684 if ((length >= 3) && (start[1] == '0'))
1685 return(MagickFalse);
1686 i=1;
1687 }
1688 for ( ; i < (length-1); i++)
1689 if (isdigit((int) ((unsigned char) start[i])) == 0)
1690 return(MagickFalse);
1691 return(MagickTrue);
1692 }
1693 return(MagickFalse);
1694}
1695
1696MagickExport size_t InterpretImageFilename(const ImageInfo *image_info,
1697 Image *image,const char *format,int value,char *filename,
1698 ExceptionInfo *exception)
1699{
1700 char
1701 *literal,
1702 *p = filename,
1703 pattern[MagickPathExtent];
1704
1705 const char
1706 *cursor = format;
1707
1708 assert(format != (const char *) NULL);
1709 assert(filename != (char *) NULL);
1710 literal=(char *) GetImageRegistry(StringRegistryType,"filename:literal",
1711 exception);
1712 if (IsStringTrue(literal) != MagickFalse)
1713 {
1714 if (literal != (char *) NULL)
1715 literal=DestroyString(literal);
1716 (void) CopyMagickString(filename,format,MagickPathExtent);
1717 return(strlen(filename));
1718 }
1719 if (literal != (char *) NULL)
1720 literal=DestroyString(literal);
1721 while ((*cursor != '\0') && ((p-filename) < ((ssize_t) MagickPathExtent-1)))
1722 {
1723 const char
1724 *specifier_start,
1725 *start;
1726
1727 if (*cursor != '%')
1728 {
1729 *p++=(*cursor++);
1730 continue;
1731 }
1732 start=cursor++; /* Skip '%' */
1733 if (*cursor == '%')
1734 {
1735 *p++='%';
1736 cursor++;
1737 continue;
1738 }
1739 specifier_start=cursor;
1740 while (isdigit((int) ((unsigned char) *cursor)) != 0)
1741 cursor++;
1742 if ((*cursor == 'd') || (*cursor == 'o') || (*cursor == 'x'))
1743 {
1744 const char
1745 *specifier_end = cursor+1;
1746
1747 if (IsValidFormatSpecifier(specifier_start,specifier_end) != MagickFalse)
1748 {
1749 char
1750 format_specifier[MagickPathExtent];
1751
1752 size_t
1753 length = (size_t) (cursor-specifier_start),
1754 pattern_length;
1755
1756 ssize_t
1757 count;
1758
1759 (void) snprintf(format_specifier,sizeof(format_specifier),
1760 "%%%.*s%c",(int) length,specifier_start,*cursor);
1761 count=FormatLocaleString(pattern,sizeof(pattern),format_specifier,
1762 value);
1763 pattern_length=strlen(pattern);
1764 if ((count <= 0) || ((size_t) count != pattern_length))
1765 return(0);
1766 if ((p-filename+pattern_length) >= MagickPathExtent)
1767 return(0);
1768 (void) CopyMagickString(p,pattern,(size_t) (MagickPathExtent-
1769 (p-filename)));
1770 p+=pattern_length;
1771 cursor++;
1772 continue;
1773 }
1774 else
1775 {
1776 /*
1777 Invalid specifier — treat as literal.
1778 */
1779 cursor=start;
1780 *p++=(*cursor++);
1781 continue;
1782 }
1783 }
1784 if (*cursor == '[')
1785 {
1786 const char
1787 *end = strchr(cursor,']'),
1788 *option = (const char *) NULL;
1789
1790 size_t
1791 extent,
1792 option_length;
1793
1794 if (end == (const char *) NULL)
1795 continue;
1796 extent=(size_t) (end-cursor-1);
1797 if (extent >= sizeof(pattern))
1798 continue;
1799 (void) CopyMagickString(pattern,cursor+1,extent+1);
1800 pattern[extent]='\0';
1801 if (image != NULL)
1802 {
1803 option=GetImageProperty(image,pattern,exception);
1804 if (option == (const char *) NULL)
1805 option=GetImageArtifact(image,pattern);
1806 }
1807 if ((option == (const char *) NULL) &&
1808 (image_info != (ImageInfo *) NULL))
1809 option=GetImageOption(image_info,pattern);
1810 if (option == (const char *) NULL)
1811 continue;
1812 option_length=strlen(option);
1813 if ((p-filename+option_length) >= MagickPathExtent)
1814 return(0);
1815 (void) CopyMagickString(p,option,(size_t) (MagickPathExtent-
1816 (p-filename)));
1817 p+=option_length;
1818 cursor=end+1;
1819 continue;
1820 }
1821 /*
1822 Invalid or unsupported specifier — treat as literal.
1823 */
1824 cursor=start;
1825 if ((p-filename+1) >= MagickPathExtent)
1826 return(0);
1827 *p++=(*cursor++);
1828 }
1829 *p='\0';
1830 return(strlen(filename));
1831}
1832␌
1833/*
1834%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1835% %
1836% %
1837% %
1838% I s H i g h D y n a m i c R a n g e I m a g e %
1839% %
1840% %
1841% %
1842%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1843%
1844% IsHighDynamicRangeImage() returns MagickTrue if any pixel component is
1845% non-integer or exceeds the bounds of the quantum depth (e.g. for Q16
1846% 0..65535.
1847%
1848% The format of the IsHighDynamicRangeImage method is:
1849%
1850% MagickBooleanType IsHighDynamicRangeImage(const Image *image,
1851% ExceptionInfo *exception)
1852%
1853% A description of each parameter follows:
1854%
1855% o image: the image.
1856%
1857% o exception: return any errors or warnings in this structure.
1858%
1859*/
1860MagickExport MagickBooleanType IsHighDynamicRangeImage(const Image *image,
1861 ExceptionInfo *exception)
1862{
1863#if !defined(MAGICKCORE_HDRI_SUPPORT)
1864 (void) image;
1865 (void) exception;
1866 return(MagickFalse);
1867#else
1868 CacheView
1869 *image_view;
1870
1871 MagickBooleanType
1872 hdri = MagickFalse;
1873
1874 ssize_t
1875 y;
1876
1877 assert(image != (Image *) NULL);
1878 assert(image->signature == MagickCoreSignature);
1879 if (IsEventLogging() != MagickFalse)
1880 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1881 image_view=AcquireVirtualCacheView(image,exception);
1882#if defined(MAGICKCORE_OPENMP_SUPPORT)
1883 #pragma omp parallel for schedule(static) shared(hdri) \
1884 magick_number_threads(image,image,image->rows,2)
1885#endif
1886 for (y=0; y < (ssize_t) image->rows; y++)
1887 {
1888 const Quantum
1889 *p;
1890
1891 ssize_t
1892 x;
1893
1894 if (hdri != MagickFalse)
1895 continue;
1896 p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
1897 if (p == (const Quantum *) NULL)
1898 continue;
1899 for (x=0; x < (ssize_t) image->columns; x++)
1900 {
1901 ssize_t
1902 i;
1903
1904 for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
1905 {
1906 double
1907 pixel;
1908
1909 PixelTrait
1910 traits;
1911
1912 traits=GetPixelChannelTraits(image,(PixelChannel) i);
1913 if (traits == UndefinedPixelTrait)
1914 continue;
1915 pixel=(double) p[i];
1916 if ((pixel < 0.0) || (pixel > (double) QuantumRange) ||
1917 (pixel != (double) ((QuantumAny) pixel)))
1918 {
1919 hdri=MagickTrue;
1920 break;
1921 }
1922 }
1923 if (hdri != MagickFalse)
1924 break;
1925 p+=(ptrdiff_t) GetPixelChannels(image);
1926 }
1927 }
1928 image_view=DestroyCacheView(image_view);
1929 return(hdri);
1930#endif
1931}
1932␌
1933/*
1934%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1935% %
1936% %
1937% %
1938% I s I m a g e O b j e c t %
1939% %
1940% %
1941% %
1942%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1943%
1944% IsImageObject() returns MagickTrue if the image sequence contains a valid
1945% set of image objects.
1946%
1947% The format of the IsImageObject method is:
1948%
1949% MagickBooleanType IsImageObject(const Image *image)
1950%
1951% A description of each parameter follows:
1952%
1953% o image: the image.
1954%
1955*/
1956MagickExport MagickBooleanType IsImageObject(const Image *image)
1957{
1958 const Image
1959 *p;
1960
1961 assert(image != (Image *) NULL);
1962 if (IsEventLogging() != MagickFalse)
1963 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1964 for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
1965 if (p->signature != MagickCoreSignature)
1966 return(MagickFalse);
1967 return(MagickTrue);
1968}
1969␌
1970/*
1971%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1972% %
1973% %
1974% %
1975% I s T a i n t I m a g e %
1976% %
1977% %
1978% %
1979%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1980%
1981% IsTaintImage() returns MagickTrue any pixel in the image has been altered
1982% since it was first constituted.
1983%
1984% The format of the IsTaintImage method is:
1985%
1986% MagickBooleanType IsTaintImage(const Image *image)
1987%
1988% A description of each parameter follows:
1989%
1990% o image: the image.
1991%
1992*/
1993MagickExport MagickBooleanType IsTaintImage(const Image *image)
1994{
1995 char
1996 magick[MagickPathExtent],
1997 filename[MagickPathExtent];
1998
1999 const Image
2000 *p;
2001
2002 assert(image != (Image *) NULL);
2003 assert(image->signature == MagickCoreSignature);
2004 if (IsEventLogging() != MagickFalse)
2005 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2006 (void) CopyMagickString(magick,image->magick,MagickPathExtent);
2007 (void) CopyMagickString(filename,image->filename,MagickPathExtent);
2008 for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
2009 {
2010 if (p->taint != MagickFalse)
2011 return(MagickTrue);
2012 if (LocaleCompare(p->magick,magick) != 0)
2013 return(MagickTrue);
2014 if (LocaleCompare(p->filename,filename) != 0)
2015 return(MagickTrue);
2016 }
2017 return(MagickFalse);
2018}
2019␌
2020/*
2021%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2022% %
2023% %
2024% %
2025% M o d i f y I m a g e %
2026% %
2027% %
2028% %
2029%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2030%
2031% ModifyImage() ensures that there is only a single reference to the image
2032% to be modified, updating the provided image pointer to point to a clone of
2033% the original image if necessary.
2034%
2035% The format of the ModifyImage method is:
2036%
2037% MagickBooleanType ModifyImage(Image *image,ExceptionInfo *exception)
2038%
2039% A description of each parameter follows:
2040%
2041% o image: the image.
2042%
2043% o exception: return any errors or warnings in this structure.
2044%
2045*/
2046MagickExport MagickBooleanType ModifyImage(Image **image,
2047 ExceptionInfo *exception)
2048{
2049 Image
2050 *clone_image;
2051
2052 assert(image != (Image **) NULL);
2053 assert(*image != (Image *) NULL);
2054 assert((*image)->signature == MagickCoreSignature);
2055 if (IsEventLogging() != MagickFalse)
2056 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",(*image)->filename);
2057 if (GetImageReferenceCount(*image) <= 1)
2058 return(MagickTrue);
2059 clone_image=CloneImage(*image,0,0,MagickTrue,exception);
2060 LockSemaphoreInfo((*image)->semaphore);
2061 (*image)->reference_count--;
2062 UnlockSemaphoreInfo((*image)->semaphore);
2063 *image=clone_image;
2064 return(MagickTrue);
2065}
2066␌
2067/*
2068%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2069% %
2070% %
2071% %
2072% N e w M a g i c k I m a g e %
2073% %
2074% %
2075% %
2076%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2077%
2078% NewMagickImage() creates a blank image canvas of the specified size and
2079% background color.
2080%
2081% The format of the NewMagickImage method is:
2082%
2083% Image *NewMagickImage(const ImageInfo *image_info,const size_t width,
2084% const size_t height,const PixelInfo *background,
2085% ExceptionInfo *exception)
2086%
2087% A description of each parameter follows:
2088%
2089% o image: the image.
2090%
2091% o width: the image width.
2092%
2093% o height: the image height.
2094%
2095% o background: the image color.
2096%
2097% o exception: return any errors or warnings in this structure.
2098%
2099*/
2100MagickExport Image *NewMagickImage(const ImageInfo *image_info,
2101 const size_t width,const size_t height,const PixelInfo *background,
2102 ExceptionInfo *exception)
2103{
2104 CacheView
2105 *image_view;
2106
2107 Image
2108 *image;
2109
2110 MagickBooleanType
2111 status;
2112
2113 ssize_t
2114 y;
2115
2116 assert(image_info != (const ImageInfo *) NULL);
2117 assert(image_info->signature == MagickCoreSignature);
2118 assert(background != (const PixelInfo *) NULL);
2119 if (IsEventLogging() != MagickFalse)
2120 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2121 image=AcquireImage(image_info,exception);
2122 image->columns=width;
2123 image->rows=height;
2124 image->colorspace=background->colorspace;
2125 image->alpha_trait=background->alpha_trait;
2126 image->fuzz=background->fuzz;
2127 image->depth=background->depth;
2128 status=MagickTrue;
2129 image_view=AcquireAuthenticCacheView(image,exception);
2130#if defined(MAGICKCORE_OPENMP_SUPPORT)
2131 #pragma omp parallel for schedule(static) shared(status) \
2132 magick_number_threads(image,image,image->rows,2)
2133#endif
2134 for (y=0; y < (ssize_t) image->rows; y++)
2135 {
2136 Quantum
2137 *magick_restrict q;
2138
2139 ssize_t
2140 x;
2141
2142 if (status == MagickFalse)
2143 continue;
2144 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2145 if (q == (Quantum *) NULL)
2146 {
2147 status=MagickFalse;
2148 continue;
2149 }
2150 for (x=0; x < (ssize_t) image->columns; x++)
2151 {
2152 SetPixelViaPixelInfo(image,background,q);
2153 q+=(ptrdiff_t) GetPixelChannels(image);
2154 }
2155 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2156 status=MagickFalse;
2157 }
2158 image_view=DestroyCacheView(image_view);
2159 if (status == MagickFalse)
2160 image=DestroyImage(image);
2161 return(image);
2162}
2163␌
2164/*
2165%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2166% %
2167% %
2168% %
2169% R e f e r e n c e I m a g e %
2170% %
2171% %
2172% %
2173%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2174%
2175% ReferenceImage() increments the reference count associated with an image
2176% returning a pointer to the image.
2177%
2178% The format of the ReferenceImage method is:
2179%
2180% Image *ReferenceImage(Image *image)
2181%
2182% A description of each parameter follows:
2183%
2184% o image: the image.
2185%
2186*/
2187MagickExport Image *ReferenceImage(Image *image)
2188{
2189 assert(image != (Image *) NULL);
2190 assert(image->signature == MagickCoreSignature);
2191 if (IsEventLogging() != MagickFalse)
2192 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2193 LockSemaphoreInfo(image->semaphore);
2194 image->reference_count++;
2195 UnlockSemaphoreInfo(image->semaphore);
2196 return(image);
2197}
2198␌
2199/*
2200%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2201% %
2202% %
2203% %
2204% R e s e t I m a g e P a g e %
2205% %
2206% %
2207% %
2208%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2209%
2210% ResetImagePage() resets the image page canvas and position.
2211%
2212% The format of the ResetImagePage method is:
2213%
2214% MagickBooleanType ResetImagePage(Image *image,const char *page)
2215%
2216% A description of each parameter follows:
2217%
2218% o image: the image.
2219%
2220% o page: the relative page specification.
2221%
2222*/
2223MagickExport MagickBooleanType ResetImagePage(Image *image,const char *page)
2224{
2225 MagickStatusType
2226 flags;
2227
2228 RectangleInfo
2229 geometry;
2230
2231 assert(image != (Image *) NULL);
2232 assert(image->signature == MagickCoreSignature);
2233 if (IsEventLogging() != MagickFalse)
2234 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2235 flags=ParseAbsoluteGeometry(page,&geometry);
2236 if ((flags & WidthValue) != 0)
2237 {
2238 if ((flags & HeightValue) == 0)
2239 geometry.height=geometry.width;
2240 image->page.width=geometry.width;
2241 image->page.height=geometry.height;
2242 }
2243 if ((flags & AspectValue) != 0)
2244 {
2245 if ((flags & XValue) != 0)
2246 image->page.x+=geometry.x;
2247 if ((flags & YValue) != 0)
2248 image->page.y+=geometry.y;
2249 }
2250 else
2251 {
2252 if ((flags & XValue) != 0)
2253 {
2254 image->page.x=geometry.x;
2255 if ((image->page.width == 0) && (geometry.x > 0))
2256 image->page.width=(size_t) ((ssize_t) image->columns+geometry.x);
2257 }
2258 if ((flags & YValue) != 0)
2259 {
2260 image->page.y=geometry.y;
2261 if ((image->page.height == 0) && (geometry.y > 0))
2262 image->page.height=(size_t) ((ssize_t) image->rows+geometry.y);
2263 }
2264 }
2265 return(MagickTrue);
2266}
2267␌
2268/*
2269%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2270% %
2271% %
2272% %
2273% R e s e t I m a g e P i x e l s %
2274% %
2275% %
2276% %
2277%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2278%
2279% ResetImagePixels() reset the image pixels, that is, all the pixel components
2280% are zeroed.
2281%
2282% The format of the SetImage method is:
2283%
2284% MagickBooleanType ResetImagePixels(Image *image,
2285% ExceptionInfo *exception)
2286%
2287% A description of each parameter follows:
2288%
2289% o image: the image.
2290%
2291% o exception: return any errors or warnings in this structure.
2292%
2293*/
2294MagickExport MagickBooleanType ResetImagePixels(Image *image,
2295 ExceptionInfo *exception)
2296{
2297 CacheView
2298 *image_view;
2299
2300 MagickBooleanType
2301 status;
2302
2303 size_t
2304 length;
2305
2306 ssize_t
2307 y;
2308
2309 void
2310 *pixels;
2311
2312 assert(image != (Image *) NULL);
2313 assert(image->signature == MagickCoreSignature);
2314 if (IsEventLogging() != MagickFalse)
2315 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2316 pixels=AcquirePixelCachePixels(image,&length,exception);
2317 if (pixels != (void *) NULL)
2318 {
2319 /*
2320 Reset in-core image pixels.
2321 */
2322 (void) memset(pixels,0,length);
2323 return(MagickTrue);
2324 }
2325 /*
2326 Reset image pixels.
2327 */
2328 status=MagickTrue;
2329 image_view=AcquireAuthenticCacheView(image,exception);
2330#if defined(MAGICKCORE_OPENMP_SUPPORT)
2331 #pragma omp parallel for schedule(static) shared(status) \
2332 magick_number_threads(image,image,image->rows,2)
2333#endif
2334 for (y=0; y < (ssize_t) image->rows; y++)
2335 {
2336 Quantum
2337 *magick_restrict q;
2338
2339 ssize_t
2340 x;
2341
2342 if (status == MagickFalse)
2343 continue;
2344 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2345 if (q == (Quantum *) NULL)
2346 {
2347 status=MagickFalse;
2348 continue;
2349 }
2350 for (x=0; x < (ssize_t) image->columns; x++)
2351 {
2352 (void) memset(q,0,GetPixelChannels(image)*sizeof(Quantum));
2353 q+=(ptrdiff_t) GetPixelChannels(image);
2354 }
2355 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2356 status=MagickFalse;
2357 }
2358 image_view=DestroyCacheView(image_view);
2359 return(status);
2360}
2361␌
2362/*
2363%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2364% %
2365% %
2366% %
2367% S e t I m a g e A l p h a %
2368% %
2369% %
2370% %
2371%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2372%
2373% SetImageAlpha() sets the alpha levels of the image.
2374%
2375% The format of the SetImageAlpha method is:
2376%
2377% MagickBooleanType SetImageAlpha(Image *image,const Quantum alpha,
2378% ExceptionInfo *exception)
2379%
2380% A description of each parameter follows:
2381%
2382% o image: the image.
2383%
2384% o alpha: the level of transparency: 0 is fully transparent and QuantumRange
2385% is fully opaque.
2386%
2387% o exception: return any errors or warnings in this structure.
2388%
2389*/
2390MagickExport MagickBooleanType SetImageAlpha(Image *image,const Quantum alpha,
2391 ExceptionInfo *exception)
2392{
2393 CacheView
2394 *image_view;
2395
2396 MagickBooleanType
2397 status;
2398
2399 PixelTrait
2400 original_mask;
2401
2402 ssize_t
2403 y;
2404
2405 assert(image != (Image *) NULL);
2406 assert(image->signature == MagickCoreSignature);
2407 if (IsEventLogging() != MagickFalse)
2408 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2409 image->alpha_trait=BlendPixelTrait;
2410 /* Disable mask to make sure that all pixels are changed */
2411 original_mask=image->mask_trait;
2412 image->mask_trait=UndefinedPixelTrait;
2413 status=MagickTrue;
2414 image_view=AcquireAuthenticCacheView(image,exception);
2415#if defined(MAGICKCORE_OPENMP_SUPPORT)
2416 #pragma omp parallel for schedule(static) shared(status) \
2417 magick_number_threads(image,image,image->rows,2)
2418#endif
2419 for (y=0; y < (ssize_t) image->rows; y++)
2420 {
2421 Quantum
2422 *magick_restrict q;
2423
2424 ssize_t
2425 x;
2426
2427 if (status == MagickFalse)
2428 continue;
2429 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2430 if (q == (Quantum *) NULL)
2431 {
2432 status=MagickFalse;
2433 continue;
2434 }
2435 for (x=0; x < (ssize_t) image->columns; x++)
2436 {
2437 if (GetPixelWriteMask(image,q) > (QuantumRange/2))
2438 SetPixelAlpha(image,alpha,q);
2439 q+=(ptrdiff_t) GetPixelChannels(image);
2440 }
2441 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2442 status=MagickFalse;
2443 }
2444 image_view=DestroyCacheView(image_view);
2445 image->mask_trait=original_mask;
2446 return(status);
2447}
2448␌
2449/*
2450%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2451% %
2452% %
2453% %
2454% S e t I m a g e B a c k g r o u n d C o l o r %
2455% %
2456% %
2457% %
2458%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2459%
2460% SetImageBackgroundColor() initializes the image pixels to the image
2461% background color. The background color is defined by the background_color
2462% member of the image structure.
2463%
2464% The format of the SetImage method is:
2465%
2466% MagickBooleanType SetImageBackgroundColor(Image *image,
2467% ExceptionInfo *exception)
2468%
2469% A description of each parameter follows:
2470%
2471% o image: the image.
2472%
2473% o exception: return any errors or warnings in this structure.
2474%
2475*/
2476MagickExport MagickBooleanType SetImageBackgroundColor(Image *image,
2477 ExceptionInfo *exception)
2478{
2479 CacheView
2480 *image_view;
2481
2482 MagickBooleanType
2483 status;
2484
2485 PixelInfo
2486 background;
2487
2488 ssize_t
2489 y;
2490
2491 assert(image != (Image *) NULL);
2492 assert(image->signature == MagickCoreSignature);
2493 if (IsEventLogging() != MagickFalse)
2494 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2495 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
2496 return(MagickFalse);
2497 if ((image->background_color.alpha_trait != UndefinedPixelTrait) &&
2498 ((image->alpha_trait & BlendPixelTrait) == 0))
2499 (void) SetImageAlphaChannel(image,ActivateAlphaChannel,exception);
2500 ConformPixelInfo(image,&image->background_color,&background,exception);
2501 /*
2502 Set image background color.
2503 */
2504 status=MagickTrue;
2505 image_view=AcquireAuthenticCacheView(image,exception);
2506#if defined(MAGICKCORE_OPENMP_SUPPORT)
2507 #pragma omp parallel for schedule(static) shared(status) \
2508 magick_number_threads(image,image,image->rows,2)
2509#endif
2510 for (y=0; y < (ssize_t) image->rows; y++)
2511 {
2512 Quantum
2513 *magick_restrict q;
2514
2515 ssize_t
2516 x;
2517
2518 if (status == MagickFalse)
2519 continue;
2520 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2521 if (q == (Quantum *) NULL)
2522 {
2523 status=MagickFalse;
2524 continue;
2525 }
2526 for (x=0; x < (ssize_t) image->columns; x++)
2527 {
2528 SetPixelViaPixelInfo(image,&background,q);
2529 q+=(ptrdiff_t) GetPixelChannels(image);
2530 }
2531 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2532 status=MagickFalse;
2533 }
2534 image_view=DestroyCacheView(image_view);
2535 return(status);
2536}
2537␌
2538/*
2539%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2540% %
2541% %
2542% %
2543% S e t I m a g e C h a n n e l M a s k %
2544% %
2545% %
2546% %
2547%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2548%
2549% SetImageChannelMask() sets the image channel mask from the specified channel
2550% mask.
2551%
2552% The format of the SetImageChannelMask method is:
2553%
2554% ChannelType SetImageChannelMask(Image *image,
2555% const ChannelType channel_mask)
2556%
2557% A description of each parameter follows:
2558%
2559% o image: the image.
2560%
2561% o channel_mask: the channel mask.
2562%
2563*/
2564MagickExport ChannelType SetImageChannelMask(Image *image,
2565 const ChannelType channel_mask)
2566{
2567 return(SetPixelChannelMask(image,channel_mask));
2568}
2569␌
2570/*
2571%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2572% %
2573% %
2574% %
2575% S e t I m a g e C o l o r %
2576% %
2577% %
2578% %
2579%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2580%
2581% SetImageColor() set the entire image canvas to the specified color.
2582%
2583% The format of the SetImageColor method is:
2584%
2585% MagickBooleanType SetImageColor(Image *image,const PixelInfo *color,
2586% ExceptionInfo *exception)
2587%
2588% A description of each parameter follows:
2589%
2590% o image: the image.
2591%
2592% o background: the image color.
2593%
2594% o exception: return any errors or warnings in this structure.
2595%
2596*/
2597MagickExport MagickBooleanType SetImageColor(Image *image,
2598 const PixelInfo *color,ExceptionInfo *exception)
2599{
2600 CacheView
2601 *image_view;
2602
2603 MagickBooleanType
2604 status;
2605
2606 ssize_t
2607 y;
2608
2609 assert(image != (Image *) NULL);
2610 assert(image->signature == MagickCoreSignature);
2611 assert(color != (const PixelInfo *) NULL);
2612 if (IsEventLogging() != MagickFalse)
2613 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2614 image->colorspace=color->colorspace;
2615 image->alpha_trait=color->alpha_trait;
2616 image->fuzz=color->fuzz;
2617 image->depth=color->depth;
2618 status=MagickTrue;
2619 image_view=AcquireAuthenticCacheView(image,exception);
2620#if defined(MAGICKCORE_OPENMP_SUPPORT)
2621 #pragma omp parallel for schedule(static) shared(status) \
2622 magick_number_threads(image,image,image->rows,2)
2623#endif
2624 for (y=0; y < (ssize_t) image->rows; y++)
2625 {
2626 Quantum
2627 *magick_restrict q;
2628
2629 ssize_t
2630 x;
2631
2632 if (status == MagickFalse)
2633 continue;
2634 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2635 if (q == (Quantum *) NULL)
2636 {
2637 status=MagickFalse;
2638 continue;
2639 }
2640 for (x=0; x < (ssize_t) image->columns; x++)
2641 {
2642 SetPixelViaPixelInfo(image,color,q);
2643 q+=(ptrdiff_t) GetPixelChannels(image);
2644 }
2645 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2646 status=MagickFalse;
2647 }
2648 image_view=DestroyCacheView(image_view);
2649 return(status);
2650}
2651␌
2652/*
2653%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2654% %
2655% %
2656% %
2657% S e t I m a g e S t o r a g e C l a s s %
2658% %
2659% %
2660% %
2661%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2662%
2663% SetImageStorageClass() sets the image class: DirectClass for true color
2664% images or PseudoClass for colormapped images.
2665%
2666% The format of the SetImageStorageClass method is:
2667%
2668% MagickBooleanType SetImageStorageClass(Image *image,
2669% const ClassType storage_class,ExceptionInfo *exception)
2670%
2671% A description of each parameter follows:
2672%
2673% o image: the image.
2674%
2675% o storage_class: The image class.
2676%
2677% o exception: return any errors or warnings in this structure.
2678%
2679*/
2680MagickExport MagickBooleanType SetImageStorageClass(Image *image,
2681 const ClassType storage_class,ExceptionInfo *exception)
2682{
2683 assert(image != (Image *) NULL);
2684 assert(image->signature == MagickCoreSignature);
2685 assert(exception != (ExceptionInfo *) NULL);
2686 assert(exception->signature == MagickCoreSignature);
2687 if (IsEventLogging() != MagickFalse)
2688 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2689 image->storage_class=storage_class;
2690 return(SyncImagePixelCache(image,exception));
2691}
2692␌
2693/*
2694%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2695% %
2696% %
2697% %
2698% S e t I m a g e E x t e n t %
2699% %
2700% %
2701% %
2702%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2703%
2704% SetImageExtent() sets the image size (i.e. columns & rows).
2705%
2706% The format of the SetImageExtent method is:
2707%
2708% MagickBooleanType SetImageExtent(Image *image,const size_t columns,
2709% const size_t rows,ExceptionInfo *exception)
2710%
2711% A description of each parameter follows:
2712%
2713% o image: the image.
2714%
2715% o columns: The image width in pixels.
2716%
2717% o rows: The image height in pixels.
2718%
2719% o exception: return any errors or warnings in this structure.
2720%
2721*/
2722MagickExport MagickBooleanType SetImageExtent(Image *image,const size_t columns,
2723 const size_t rows,ExceptionInfo *exception)
2724{
2725 if ((columns == 0) || (rows == 0))
2726 ThrowBinaryException(ImageError,"NegativeOrZeroImageSize",image->filename);
2727 if ((columns > (size_t) MAGICK_SSIZE_MAX) ||
2728 (rows > (size_t) MAGICK_SSIZE_MAX))
2729 ThrowBinaryException(ImageError,"ImageSizeLimitExceeded",image->filename);
2730 image->columns=columns;
2731 image->rows=rows;
2732 if (image->depth == 0)
2733 {
2734 image->depth=8;
2735 (void) ThrowMagickException(exception,GetMagickModule(),ImageError,
2736 "ImageDepthNotSupported","`%s'",image->filename);
2737 }
2738 if (image->depth > (8*sizeof(MagickSizeType)))
2739 {
2740 image->depth=8*sizeof(MagickSizeType);
2741 (void) ThrowMagickException(exception,GetMagickModule(),ImageError,
2742 "ImageDepthNotSupported","`%s'",image->filename);
2743 }
2744 return(SyncImagePixelCache(image,exception));
2745}
2746␌
2747/*
2748%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2749% %
2750% %
2751% %
2752+ S e t I m a g e I n f o %
2753% %
2754% %
2755% %
2756%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2757%
2758% SetImageInfo() initializes the 'magick' field of the ImageInfo structure.
2759% It is set to a type of image format based on the prefix or suffix of the
2760% filename. For example, 'ps:image' returns PS indicating a Postscript image.
2761% JPEG is returned for this filename: 'image.jpg'. The filename prefix has
2762% precedence over the suffix. Use an optional index enclosed in brackets
2763% after a file name to specify a desired scene of a multi-resolution image
2764% format like Photo CD (e.g. img0001.pcd[4]). A True (non-zero) return value
2765% indicates success.
2766%
2767% The format of the SetImageInfo method is:
2768%
2769% MagickBooleanType SetImageInfo(ImageInfo *image_info,
2770% const unsigned int frames,ExceptionInfo *exception)
2771%
2772% A description of each parameter follows:
2773%
2774% o image_info: the image info.
2775%
2776% o frames: the number of images you intend to write.
2777%
2778% o exception: return any errors or warnings in this structure.
2779%
2780*/
2781
2782static const MagickInfo *SetImageInfoFromExtension(ImageInfo *image_info,
2783 const char *component,char *magic,ExceptionInfo *exception)
2784{
2785 const MagickInfo
2786 *magick_info;
2787
2788 MagickFormatType
2789 format_type;
2790
2791 ssize_t
2792 i;
2793
2794 static const char
2795 *format_type_formats[] =
2796 {
2797 "AUTOTRACE",
2798 "BROWSE",
2799 "DCRAW",
2800 "EDIT",
2801 "LAUNCH",
2802 "MPEG:DECODE",
2803 "MPEG:ENCODE",
2804 "PRINT",
2805 "PS:ALPHA",
2806 "PS:CMYK",
2807 "PS:COLOR",
2808 "PS:GRAY",
2809 "PS:MONO",
2810 "SCAN",
2811 "SHOW",
2812 "WIN",
2813 (char *) NULL
2814 };
2815
2816 /*
2817 User specified image format.
2818 */
2819 (void) CopyMagickString(magic,component,MagickPathExtent);
2820 LocaleUpper(magic);
2821 /*
2822 Look for explicit image formats.
2823 */
2824 format_type=UndefinedFormatType;
2825 magick_info=GetMagickInfo(magic,exception);
2826 if ((magick_info != (const MagickInfo *) NULL) &&
2827 (magick_info->format_type != UndefinedFormatType))
2828 format_type=magick_info->format_type;
2829 i=0;
2830 while ((format_type == UndefinedFormatType) &&
2831 (format_type_formats[i] != (char *) NULL))
2832 {
2833 if ((*magic == *format_type_formats[i]) &&
2834 (LocaleCompare(magic,format_type_formats[i]) == 0))
2835 format_type=ExplicitFormatType;
2836 i++;
2837 }
2838 if (format_type == UndefinedFormatType)
2839 (void) CopyMagickString(image_info->magick,magic,MagickPathExtent);
2840 else
2841 if (format_type == ExplicitFormatType)
2842 {
2843 image_info->affirm=MagickTrue;
2844 (void) CopyMagickString(image_info->magick,magic,MagickPathExtent);
2845 }
2846 if (LocaleCompare(magic,"RGB") == 0)
2847 image_info->affirm=MagickFalse; /* maybe SGI disguised as RGB */
2848 return(magick_info);
2849}
2850
2851MagickExport MagickBooleanType SetImageInfo(ImageInfo *image_info,
2852 const unsigned int frames,ExceptionInfo *exception)
2853{
2854 char
2855 component[MagickPathExtent],
2856 magic[MagickPathExtent],
2857 path[MagickPathExtent],
2858 *q;
2859
2860 const char
2861 *p;
2862
2863 const MagicInfo
2864 *magic_info;
2865
2866 const MagickInfo
2867 *magick_info;
2868
2869 ExceptionInfo
2870 *sans_exception;
2871
2872 Image
2873 *image;
2874
2875 MagickBooleanType
2876 status;
2877
2878 ssize_t
2879 count;
2880
2881 /*
2882 Look for 'image.format' in filename.
2883 */
2884 assert(image_info != (ImageInfo *) NULL);
2885 assert(image_info->signature == MagickCoreSignature);
2886 if (IsEventLogging() != MagickFalse)
2887 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
2888 image_info->filename);
2889 *component='\0';
2890 GetPathComponent(image_info->filename,SubimagePath,component);
2891 if (*component == '\0')
2892 {
2893 const char *image_frames = GetImageOption(image_info,"image:frames");
2894 if (image_frames != (const char *) NULL)
2895 (void) CopyMagickString(component,image_frames,MagickPathExtent);
2896 }
2897 if (*component != '\0')
2898 {
2899 /*
2900 Look for scene specification (e.g. img0001.pcd[4]).
2901 */
2902 if (IsSceneGeometry(component,MagickFalse) == MagickFalse)
2903 {
2904 if (IsGeometry(component) != MagickFalse)
2905 (void) CloneString(&image_info->extract,component);
2906 }
2907 else
2908 {
2909 size_t
2910 first,
2911 last;
2912
2913 (void) CloneString(&image_info->scenes,component);
2914 image_info->scene=StringToUnsignedLong(image_info->scenes);
2915 image_info->number_scenes=image_info->scene;
2916 p=image_info->scenes;
2917 for (q=(char *) image_info->scenes; *q != '\0'; p++)
2918 {
2919 while ((isspace((int) ((unsigned char) *p)) != 0) || (*p == ','))
2920 p++;
2921 first=(size_t) strtol(p,&q,10);
2922 last=first;
2923 while (isspace((int) ((unsigned char) *q)) != 0)
2924 q++;
2925 if (*q == '-')
2926 last=(size_t) strtol(q+1,&q,10);
2927 if (first > last)
2928 Swap(first,last);
2929 if (first < image_info->scene)
2930 image_info->scene=first;
2931 if (last > image_info->number_scenes)
2932 image_info->number_scenes=last;
2933 p=q;
2934 }
2935 image_info->number_scenes-=image_info->scene-1;
2936 }
2937 }
2938 *component='\0';
2939 if (*image_info->magick == '\0')
2940 GetPathComponent(image_info->filename,ExtensionPath,component);
2941 if (*component != '\0')
2942 {
2943 /*
2944 Base path sans any compression extension.
2945 */
2946 GetPathComponent(image_info->filename,BasePathSansCompressExtension,path);
2947 GetPathComponent(path,ExtensionPath,component);
2948 }
2949 image_info->affirm=MagickFalse;
2950 sans_exception=AcquireExceptionInfo();
2951 if ((*component != '\0') && (IsGlob(component) == MagickFalse))
2952 magick_info=SetImageInfoFromExtension(image_info,component,magic,
2953 sans_exception);
2954 /*
2955 Look for explicit 'format:image' in filename.
2956 */
2957 *magic='\0';
2958 GetPathComponent(image_info->filename,MagickPath,magic);
2959 if (*magic == '\0')
2960 {
2961 (void) CopyMagickString(magic,image_info->magick,MagickPathExtent);
2962 magick_info=GetMagickInfo(magic,sans_exception);
2963 if ((magick_info != (const MagickInfo *) NULL) &&
2964 (magick_info->format_type == ExplicitFormatType))
2965 image_info->affirm=MagickTrue;
2966 if (frames == 0)
2967 GetPathComponent(image_info->filename,CanonicalPath,component);
2968 else
2969 GetPathComponent(image_info->filename,SubcanonicalPath,component);
2970 (void) CopyMagickString(image_info->filename,component,MagickPathExtent);
2971 }
2972 else
2973 {
2974 const DelegateInfo
2975 *delegate_info;
2976
2977 /*
2978 User specified image format.
2979 */
2980 LocaleUpper(magic);
2981 magick_info=GetMagickInfo(magic,sans_exception);
2982 delegate_info=(const DelegateInfo *) NULL;
2983 if (magick_info == (const MagickInfo *) NULL)
2984 {
2985 delegate_info=GetDelegateInfo(magic,"*",sans_exception);
2986 if (delegate_info == (const DelegateInfo *) NULL)
2987 delegate_info=GetDelegateInfo("*",magic,sans_exception);
2988 if ((delegate_info == (const DelegateInfo *) NULL) &&
2989 ((*component != '\0') && (IsGlob(component) == MagickFalse)))
2990 {
2991 /*
2992 Retry in case GetMagickInfo loaded a custom module.
2993 */
2994 magick_info=SetImageInfoFromExtension(image_info,component,magic,
2995 sans_exception);
2996 }
2997 }
2998 if (((magick_info != (const MagickInfo *) NULL) ||
2999 (delegate_info != (const DelegateInfo *) NULL)) &&
3000 (IsMagickConflict(magic) == MagickFalse))
3001 {
3002 char *literal = (char *) GetImageRegistry(StringRegistryType,
3003 "filename:literal",exception);
3004 image_info->affirm=MagickTrue;
3005 (void) CopyMagickString(image_info->magick,magic,MagickPathExtent);
3006 GetPathComponent(image_info->filename,CanonicalPath,component);
3007 if (IsStringTrue(literal) != MagickFalse)
3008 GetPathComponent(image_info->filename,SubcanonicalPath,component);
3009 (void) CopyMagickString(image_info->filename,component,
3010 MagickPathExtent);
3011 if (literal != (char *) NULL)
3012 literal=DestroyString(literal);
3013 }
3014 }
3015 sans_exception=DestroyExceptionInfo(sans_exception);
3016 if ((magick_info == (const MagickInfo *) NULL) ||
3017 (GetMagickEndianSupport(magick_info) == MagickFalse))
3018 image_info->endian=UndefinedEndian;
3019 if ((image_info->adjoin != MagickFalse) && (frames > 1))
3020 {
3021 /*
3022 Test for multiple image support (e.g. image%02d.png).
3023 */
3024 (void) InterpretImageFilename(image_info,(Image *) NULL,
3025 image_info->filename,(int) image_info->scene,component,exception);
3026 if ((LocaleCompare(component,image_info->filename) != 0) &&
3027 (strchr(component,'%') == (char *) NULL))
3028 image_info->adjoin=MagickFalse;
3029 }
3030 if ((image_info->adjoin != MagickFalse) && (frames > 0))
3031 {
3032 /*
3033 Some image formats do not support multiple frames per file.
3034 */
3035 magick_info=GetMagickInfo(magic,exception);
3036 if (magick_info != (const MagickInfo *) NULL)
3037 if (GetMagickAdjoin(magick_info) == MagickFalse)
3038 image_info->adjoin=MagickFalse;
3039 }
3040 if (image_info->affirm != MagickFalse)
3041 return(MagickTrue);
3042 if (frames == 0)
3043 {
3044 unsigned char
3045 *magick;
3046
3047 size_t
3048 magick_size;
3049
3050 /*
3051 Determine the image format from the first few bytes of the file.
3052 */
3053 magick_size=GetMagicPatternExtent(exception);
3054 if (magick_size == 0)
3055 return(MagickFalse);
3056 image=AcquireImage(image_info,exception);
3057 (void) CopyMagickString(image->filename,image_info->filename,
3058 MagickPathExtent);
3059 sans_exception=AcquireExceptionInfo();
3060 status=OpenBlob(image_info,image,ReadBinaryBlobMode,sans_exception);
3061 sans_exception=DestroyExceptionInfo(sans_exception);
3062 if (status == MagickFalse)
3063 {
3064 image=DestroyImage(image);
3065 return(MagickFalse);
3066 }
3067 if ((IsBlobSeekable(image) == MagickFalse) ||
3068 (IsBlobExempt(image) != MagickFalse))
3069 {
3070 /*
3071 Copy image to seekable temporary file.
3072 */
3073 *component='\0';
3074 status=ImageToFile(image,component,exception);
3075 if (CloseBlob(image) == MagickFalse)
3076 status=MagickFalse;
3077 if (status == MagickFalse)
3078 {
3079 (void) RelinquishUniqueFileResource(component);
3080 image=DestroyImage(image);
3081 return(MagickFalse);
3082 }
3083 SetImageInfoFile(image_info,(FILE *) NULL);
3084 (void) CopyMagickString(image->filename,component,MagickPathExtent);
3085 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
3086 if (status == MagickFalse)
3087 {
3088 (void) RelinquishUniqueFileResource(component);
3089 image=DestroyImage(image);
3090 return(MagickFalse);
3091 }
3092 (void) CopyMagickString(image_info->filename,component,
3093 MagickPathExtent);
3094 image_info->temporary=MagickTrue;
3095 }
3096 magick=(unsigned char *) AcquireQuantumMemory(1,magick_size);
3097 if (magick == (unsigned char *) NULL)
3098 {
3099 (void) CloseBlob(image);
3100 image=DestroyImage(image);
3101 return(MagickFalse);
3102 }
3103 (void) memset(magick,0,magick_size);
3104 count=ReadBlob(image,magick_size,magick);
3105 (void) SeekBlob(image,-((MagickOffsetType) count),SEEK_CUR);
3106 (void) CloseBlob(image);
3107 image=DestroyImage(image);
3108 /*
3109 Check magic cache.
3110 */
3111 sans_exception=AcquireExceptionInfo();
3112 magic_info=GetMagicInfo(magick,(size_t) count,sans_exception);
3113 magick=(unsigned char *) RelinquishMagickMemory(magick);
3114 if ((magic_info != (const MagicInfo *) NULL) &&
3115 (GetMagicName(magic_info) != (char *) NULL))
3116 {
3117 /*
3118 Try to use magick_info that was determined earlier by the extension
3119 */
3120 if ((magick_info != (const MagickInfo *) NULL) &&
3121 (GetMagickUseExtension(magick_info) != MagickFalse) &&
3122 (LocaleCompare(magick_info->magick_module,GetMagicName(
3123 magic_info)) == 0))
3124 (void) CopyMagickString(image_info->magick,magick_info->name,
3125 MagickPathExtent);
3126 else
3127 {
3128 (void) CopyMagickString(image_info->magick,GetMagicName(
3129 magic_info),MagickPathExtent);
3130 magick_info=GetMagickInfo(image_info->magick,sans_exception);
3131 }
3132 if ((magick_info == (const MagickInfo *) NULL) ||
3133 (GetMagickEndianSupport(magick_info) == MagickFalse))
3134 image_info->endian=UndefinedEndian;
3135 sans_exception=DestroyExceptionInfo(sans_exception);
3136 return(MagickTrue);
3137 }
3138 magick_info=GetMagickInfo(image_info->magick,sans_exception);
3139 if ((magick_info == (const MagickInfo *) NULL) ||
3140 (GetMagickEndianSupport(magick_info) == MagickFalse))
3141 image_info->endian=UndefinedEndian;
3142 sans_exception=DestroyExceptionInfo(sans_exception);
3143 }
3144 return(MagickTrue);
3145}
3146␌
3147/*
3148%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3149% %
3150% %
3151% %
3152% S e t I m a g e I n f o B l o b %
3153% %
3154% %
3155% %
3156%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3157%
3158% SetImageInfoBlob() sets the image info blob member.
3159%
3160% The format of the SetImageInfoBlob method is:
3161%
3162% void SetImageInfoBlob(ImageInfo *image_info,const void *blob,
3163% const size_t length)
3164%
3165% A description of each parameter follows:
3166%
3167% o image_info: the image info.
3168%
3169% o blob: the blob.
3170%
3171% o length: the blob length.
3172%
3173*/
3174MagickExport void SetImageInfoBlob(ImageInfo *image_info,const void *blob,
3175 const size_t length)
3176{
3177 assert(image_info != (ImageInfo *) NULL);
3178 assert(image_info->signature == MagickCoreSignature);
3179 if (IsEventLogging() != MagickFalse)
3180 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
3181 image_info->filename);
3182 image_info->blob=(void *) blob;
3183 image_info->length=length;
3184}
3185␌
3186/*
3187%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3188% %
3189% %
3190% %
3191% S e t I m a g e I n f o C u s t o m S t r e a m %
3192% %
3193% %
3194% %
3195%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3196%
3197% SetImageInfoCustomStream() sets the image info custom stream handlers.
3198%
3199% The format of the SetImageInfoCustomStream method is:
3200%
3201% void SetImageInfoCustomStream(ImageInfo *image_info,
3202% CustomStreamInfo *custom_stream)
3203%
3204% A description of each parameter follows:
3205%
3206% o image_info: the image info.
3207%
3208% o custom_stream: your custom stream methods.
3209%
3210*/
3211MagickExport void SetImageInfoCustomStream(ImageInfo *image_info,
3212 CustomStreamInfo *custom_stream)
3213{
3214 assert(image_info != (ImageInfo *) NULL);
3215 assert(image_info->signature == MagickCoreSignature);
3216 if (IsEventLogging() != MagickFalse)
3217 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
3218 image_info->filename);
3219 image_info->custom_stream=(CustomStreamInfo *) custom_stream;
3220}
3221␌
3222/*
3223%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3224% %
3225% %
3226% %
3227% S e t I m a g e I n f o F i l e %
3228% %
3229% %
3230% %
3231%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3232%
3233% SetImageInfoFile() sets the image info file member.
3234%
3235% The format of the SetImageInfoFile method is:
3236%
3237% void SetImageInfoFile(ImageInfo *image_info,FILE *file)
3238%
3239% A description of each parameter follows:
3240%
3241% o image_info: the image info.
3242%
3243% o file: the file.
3244%
3245*/
3246MagickExport void SetImageInfoFile(ImageInfo *image_info,FILE *file)
3247{
3248 assert(image_info != (ImageInfo *) NULL);
3249 assert(image_info->signature == MagickCoreSignature);
3250 if (IsEventLogging() != MagickFalse)
3251 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
3252 image_info->filename);
3253 image_info->file=file;
3254}
3255␌
3256/*
3257%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3258% %
3259% %
3260% %
3261% S e t I m a g e M a s k %
3262% %
3263% %
3264% %
3265%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3266%
3267% SetImageMask() associates a mask with the image. The mask must be the same
3268% dimensions as the image.
3269%
3270% The format of the SetImageMask method is:
3271%
3272% MagickBooleanType SetImageMask(Image *image,const PixelMask type,
3273% const Image *mask,ExceptionInfo *exception)
3274%
3275% A description of each parameter follows:
3276%
3277% o image: the image.
3278%
3279% o type: the mask type, ReadPixelMask or WritePixelMask.
3280%
3281% o mask: the image mask.
3282%
3283% o exception: return any errors or warnings in this structure.
3284%
3285*/
3286MagickExport MagickBooleanType SetImageMask(Image *image,const PixelMask type,
3287 const Image *mask,ExceptionInfo *exception)
3288{
3289 CacheView
3290 *mask_view,
3291 *image_view;
3292
3293 MagickBooleanType
3294 status;
3295
3296 ssize_t
3297 y;
3298
3299 /*
3300 Set image mask.
3301 */
3302 assert(image != (Image *) NULL);
3303 if (IsEventLogging() != MagickFalse)
3304 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3305 assert(image->signature == MagickCoreSignature);
3306 image->mask_trait=UndefinedPixelTrait;
3307 if (mask == (const Image *) NULL)
3308 {
3309 switch (type)
3310 {
3311 case ReadPixelMask:
3312 {
3313 image->channels=(ChannelType) ((unsigned int) image->channels &
3314 (unsigned int) ~ReadMaskChannel);
3315 break;
3316 }
3317 case WritePixelMask:
3318 {
3319 image->channels=(ChannelType) ((unsigned int) image->channels &
3320 (unsigned int) ~WriteMaskChannel);
3321 magick_fallthrough;
3322 }
3323 default:
3324 {
3325 image->channels=(ChannelType) ((unsigned int) image->channels &
3326 (unsigned int) ~CompositeMaskChannel);
3327 break;
3328 }
3329 }
3330 return(SyncImagePixelCache(image,exception));
3331 }
3332 switch (type)
3333 {
3334 case ReadPixelMask:
3335 {
3336 image->channels=(ChannelType) (image->channels | ReadMaskChannel);
3337 break;
3338 }
3339 case WritePixelMask:
3340 {
3341 image->channels=(ChannelType) (image->channels | WriteMaskChannel);
3342 break;
3343 }
3344 default:
3345 {
3346 image->channels=(ChannelType) (image->channels | CompositeMaskChannel);
3347 break;
3348 }
3349 }
3350 if (SyncImagePixelCache(image,exception) == MagickFalse)
3351 return(MagickFalse);
3352 status=MagickTrue;
3353 mask_view=AcquireVirtualCacheView(mask,exception);
3354 image_view=AcquireAuthenticCacheView(image,exception);
3355#if defined(MAGICKCORE_OPENMP_SUPPORT)
3356 #pragma omp parallel for schedule(static) shared(status) \
3357 magick_number_threads(mask,image,image->rows,2)
3358#endif
3359 for (y=0; y < (ssize_t) image->rows; y++)
3360 {
3361 const Quantum
3362 *magick_restrict p;
3363
3364 Quantum
3365 *magick_restrict q;
3366
3367 ssize_t
3368 x;
3369
3370 if (status == MagickFalse)
3371 continue;
3372 p=GetCacheViewVirtualPixels(mask_view,0,y,mask->columns,1,exception);
3373 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
3374 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
3375 {
3376 status=MagickFalse;
3377 continue;
3378 }
3379 for (x=0; x < (ssize_t) image->columns; x++)
3380 {
3381 MagickRealType
3382 intensity;
3383
3384 intensity=0.0;
3385 if ((x < (ssize_t) mask->columns) && (y < (ssize_t) mask->rows))
3386 intensity=GetPixelIntensity(mask,p);
3387 switch (type)
3388 {
3389 case ReadPixelMask:
3390 {
3391 SetPixelReadMask(image,ClampToQuantum(intensity),q);
3392 break;
3393 }
3394 case WritePixelMask:
3395 {
3396 SetPixelWriteMask(image,ClampToQuantum(intensity),q);
3397 break;
3398 }
3399 default:
3400 {
3401 SetPixelCompositeMask(image,ClampToQuantum(intensity),q);
3402 break;
3403 }
3404 }
3405 p+=(ptrdiff_t) GetPixelChannels(mask);
3406 q+=(ptrdiff_t) GetPixelChannels(image);
3407 }
3408 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
3409 status=MagickFalse;
3410 }
3411 mask_view=DestroyCacheView(mask_view);
3412 image_view=DestroyCacheView(image_view);
3413 image->mask_trait=UpdatePixelTrait;
3414 return(status);
3415}
3416␌
3417/*
3418%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3419% %
3420% %
3421% %
3422% S e t I m a g e R e g i o n M a s k %
3423% %
3424% %
3425% %
3426%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3427%
3428% SetImageRegionMask() associates a mask with the image as defined by the
3429% specified region.
3430%
3431% The format of the SetImageRegionMask method is:
3432%
3433% MagickBooleanType SetImageRegionMask(Image *image,const PixelMask type,
3434% const RectangleInfo *region,ExceptionInfo *exception)
3435%
3436% A description of each parameter follows:
3437%
3438% o image: the image.
3439%
3440% o type: the mask type, ReadPixelMask or WritePixelMask.
3441%
3442% o geometry: the mask region.
3443%
3444% o exception: return any errors or warnings in this structure.
3445%
3446*/
3447MagickExport MagickBooleanType SetImageRegionMask(Image *image,
3448 const PixelMask type,const RectangleInfo *region,ExceptionInfo *exception)
3449{
3450 CacheView
3451 *image_view;
3452
3453 MagickBooleanType
3454 status;
3455
3456 ssize_t
3457 y;
3458
3459 /*
3460 Set image mask as defined by the region.
3461 */
3462 assert(image != (Image *) NULL);
3463 assert(image->signature == MagickCoreSignature);
3464 if (IsEventLogging() != MagickFalse)
3465 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3466 image->mask_trait=UndefinedPixelTrait;
3467 if (region == (const RectangleInfo *) NULL)
3468 {
3469 switch (type)
3470 {
3471 case ReadPixelMask:
3472 {
3473 image->channels=(ChannelType) ((unsigned int) image->channels &
3474 (unsigned int) ~ReadMaskChannel);
3475 break;
3476 }
3477 case WritePixelMask:
3478 {
3479 image->channels=(ChannelType) ((unsigned int) image->channels &
3480 (unsigned int) ~WriteMaskChannel);
3481 break;
3482 }
3483 default:
3484 {
3485 image->channels=(ChannelType) ((unsigned int) image->channels &
3486 (unsigned int) ~CompositeMaskChannel);
3487 break;
3488 }
3489 }
3490 return(SyncImagePixelCache(image,exception));
3491 }
3492 switch (type)
3493 {
3494 case ReadPixelMask:
3495 {
3496 image->channels=(ChannelType) (image->channels | ReadMaskChannel);
3497 break;
3498 }
3499 case WritePixelMask:
3500 {
3501 image->channels=(ChannelType) (image->channels | WriteMaskChannel);
3502 break;
3503 }
3504 default:
3505 {
3506 image->channels=(ChannelType) (image->channels | CompositeMaskChannel);
3507 break;
3508 }
3509 }
3510 if (SyncImagePixelCache(image,exception) == MagickFalse)
3511 return(MagickFalse);
3512 status=MagickTrue;
3513 image_view=AcquireAuthenticCacheView(image,exception);
3514#if defined(MAGICKCORE_OPENMP_SUPPORT)
3515 #pragma omp parallel for schedule(static) shared(status) \
3516 magick_number_threads(image,image,image->rows,2)
3517#endif
3518 for (y=0; y < (ssize_t) image->rows; y++)
3519 {
3520 Quantum
3521 *magick_restrict q;
3522
3523 ssize_t
3524 x;
3525
3526 if (status == MagickFalse)
3527 continue;
3528 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
3529 if (q == (Quantum *) NULL)
3530 {
3531 status=MagickFalse;
3532 continue;
3533 }
3534 for (x=0; x < (ssize_t) image->columns; x++)
3535 {
3536 Quantum
3537 pixel;
3538
3539 pixel=QuantumRange;
3540 if (((x >= region->x) && (x < (region->x+(ssize_t) region->width))) &&
3541 ((y >= region->y) && (y < (region->y+(ssize_t) region->height))))
3542 pixel=(Quantum) 0;
3543 switch (type)
3544 {
3545 case ReadPixelMask:
3546 {
3547 SetPixelReadMask(image,pixel,q);
3548 break;
3549 }
3550 case WritePixelMask:
3551 {
3552 SetPixelWriteMask(image,pixel,q);
3553 break;
3554 }
3555 default:
3556 {
3557 SetPixelCompositeMask(image,pixel,q);
3558 break;
3559 }
3560 }
3561 q+=(ptrdiff_t) GetPixelChannels(image);
3562 }
3563 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
3564 status=MagickFalse;
3565 }
3566 image->mask_trait=UpdatePixelTrait;
3567 image_view=DestroyCacheView(image_view);
3568 return(status);
3569}
3570␌
3571/*
3572%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3573% %
3574% %
3575% %
3576% 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 %
3577% %
3578% %
3579% %
3580%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3581%
3582% SetImageVirtualPixelMethod() sets the "virtual pixels" method for the
3583% image and returns the previous setting. A virtual pixel is any pixel access
3584% that is outside the boundaries of the image cache.
3585%
3586% The format of the SetImageVirtualPixelMethod() method is:
3587%
3588% VirtualPixelMethod SetImageVirtualPixelMethod(Image *image,
3589% const VirtualPixelMethod virtual_pixel_method,ExceptionInfo *exception)
3590%
3591% A description of each parameter follows:
3592%
3593% o image: the image.
3594%
3595% o virtual_pixel_method: choose the type of virtual pixel.
3596%
3597% o exception: return any errors or warnings in this structure.
3598%
3599*/
3600MagickExport VirtualPixelMethod SetImageVirtualPixelMethod(Image *image,
3601 const VirtualPixelMethod virtual_pixel_method,ExceptionInfo *exception)
3602{
3603 assert(image != (const Image *) NULL);
3604 assert(image->signature == MagickCoreSignature);
3605 if (IsEventLogging() != MagickFalse)
3606 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
3607 return(SetPixelCacheVirtualMethod(image,virtual_pixel_method,exception));
3608}
3609␌
3610/*
3611%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3612% %
3613% %
3614% %
3615% S m u s h I m a g e s %
3616% %
3617% %
3618% %
3619%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3620%
3621% SmushImages() takes all images from the current image pointer to the end
3622% of the image list and smushes them to each other top-to-bottom if the
3623% stack parameter is true, otherwise left-to-right.
3624%
3625% The current gravity setting now effects how the image is justified in the
3626% final image.
3627%
3628% The format of the SmushImages method is:
3629%
3630% Image *SmushImages(const Image *images,const MagickBooleanType stack,
3631% ExceptionInfo *exception)
3632%
3633% A description of each parameter follows:
3634%
3635% o images: the image sequence.
3636%
3637% o stack: A value other than 0 stacks the images top-to-bottom.
3638%
3639% o offset: minimum distance in pixels between images.
3640%
3641% o exception: return any errors or warnings in this structure.
3642%
3643*/
3644
3645static ssize_t SmushXGap(const Image *smush_image,const Image *images,
3646 const ssize_t offset,ExceptionInfo *exception)
3647{
3648 CacheView
3649 *left_view,
3650 *right_view;
3651
3652 const Image
3653 *left_image,
3654 *right_image;
3655
3656 RectangleInfo
3657 left_geometry,
3658 right_geometry;
3659
3660 const Quantum
3661 *p;
3662
3663 ssize_t
3664 i,
3665 y;
3666
3667 size_t
3668 gap;
3669
3670 ssize_t
3671 x;
3672
3673 if (images->previous == (Image *) NULL)
3674 return(0);
3675 right_image=images;
3676 SetGeometry(smush_image,&right_geometry);
3677 GravityAdjustGeometry(right_image->columns,right_image->rows,
3678 right_image->gravity,&right_geometry);
3679 left_image=images->previous;
3680 SetGeometry(smush_image,&left_geometry);
3681 GravityAdjustGeometry(left_image->columns,left_image->rows,
3682 left_image->gravity,&left_geometry);
3683 gap=right_image->columns;
3684 left_view=AcquireVirtualCacheView(left_image,exception);
3685 right_view=AcquireVirtualCacheView(right_image,exception);
3686 for (y=0; y < (ssize_t) smush_image->rows; y++)
3687 {
3688 for (x=(ssize_t) left_image->columns-1; x > 0; x--)
3689 {
3690 p=GetCacheViewVirtualPixels(left_view,x,left_geometry.y+y,1,1,exception);
3691 if ((p == (const Quantum *) NULL) ||
3692 (GetPixelAlpha(left_image,p) != TransparentAlpha) ||
3693 (((ssize_t) left_image->columns-x-1) >= (ssize_t) gap))
3694 break;
3695 }
3696 i=(ssize_t) left_image->columns-x-1;
3697 for (x=0; x < (ssize_t) right_image->columns; x++)
3698 {
3699 p=GetCacheViewVirtualPixels(right_view,x,right_geometry.y+y,1,1,
3700 exception);
3701 if ((p == (const Quantum *) NULL) ||
3702 (GetPixelAlpha(right_image,p) != TransparentAlpha) ||
3703 ((x+i) >= (ssize_t) gap))
3704 break;
3705 }
3706 if ((x+i) < (ssize_t) gap)
3707 gap=(size_t) (x+i);
3708 }
3709 right_view=DestroyCacheView(right_view);
3710 left_view=DestroyCacheView(left_view);
3711 if (y < (ssize_t) smush_image->rows)
3712 return(offset);
3713 return((ssize_t) gap-offset);
3714}
3715
3716static ssize_t SmushYGap(const Image *smush_image,const Image *images,
3717 const ssize_t offset,ExceptionInfo *exception)
3718{
3719 CacheView
3720 *bottom_view,
3721 *top_view;
3722
3723 const Image
3724 *bottom_image,
3725 *top_image;
3726
3727 RectangleInfo
3728 bottom_geometry,
3729 top_geometry;
3730
3731 const Quantum
3732 *p;
3733
3734 ssize_t
3735 i,
3736 x;
3737
3738 size_t
3739 gap;
3740
3741 ssize_t
3742 y;
3743
3744 if (images->previous == (Image *) NULL)
3745 return(0);
3746 bottom_image=images;
3747 SetGeometry(smush_image,&bottom_geometry);
3748 GravityAdjustGeometry(bottom_image->columns,bottom_image->rows,
3749 bottom_image->gravity,&bottom_geometry);
3750 top_image=images->previous;
3751 SetGeometry(smush_image,&top_geometry);
3752 GravityAdjustGeometry(top_image->columns,top_image->rows,top_image->gravity,
3753 &top_geometry);
3754 gap=bottom_image->rows;
3755 top_view=AcquireVirtualCacheView(top_image,exception);
3756 bottom_view=AcquireVirtualCacheView(bottom_image,exception);
3757 for (x=0; x < (ssize_t) smush_image->columns; x++)
3758 {
3759 for (y=(ssize_t) top_image->rows-1; y > 0; y--)
3760 {
3761 p=GetCacheViewVirtualPixels(top_view,top_geometry.x+x,y,1,1,exception);
3762 if ((p == (const Quantum *) NULL) ||
3763 (GetPixelAlpha(top_image,p) != TransparentAlpha) ||
3764 (((ssize_t) top_image->rows-y-1) >= (ssize_t) gap))
3765 break;
3766 }
3767 i=(ssize_t) top_image->rows-y-1;
3768 for (y=0; y < (ssize_t) bottom_image->rows; y++)
3769 {
3770 p=GetCacheViewVirtualPixels(bottom_view,bottom_geometry.x+x,y,1,1,
3771 exception);
3772 if ((p == (const Quantum *) NULL) ||
3773 (GetPixelAlpha(bottom_image,p) != TransparentAlpha) ||
3774 ((y+i) >= (ssize_t) gap))
3775 break;
3776 }
3777 if ((y+i) < (ssize_t) gap)
3778 gap=(size_t) (y+i);
3779 }
3780 bottom_view=DestroyCacheView(bottom_view);
3781 top_view=DestroyCacheView(top_view);
3782 if (x < (ssize_t) smush_image->columns)
3783 return(offset);
3784 return((ssize_t) gap-offset);
3785}
3786
3787MagickExport Image *SmushImages(const Image *images,
3788 const MagickBooleanType stack,const ssize_t offset,ExceptionInfo *exception)
3789{
3790#define SmushImageTag "Smush/Image"
3791
3792 const Image
3793 *image;
3794
3795 Image
3796 *smush_image;
3797
3798 MagickBooleanType
3799 proceed,
3800 status;
3801
3802 MagickOffsetType
3803 n;
3804
3805 PixelTrait
3806 alpha_trait;
3807
3808 RectangleInfo
3809 geometry;
3810
3811 const Image
3812 *next;
3813
3814 size_t
3815 height,
3816 number_images,
3817 width;
3818
3819 ssize_t
3820 x_offset,
3821 y_offset;
3822
3823 /*
3824 Compute maximum area of smushed area.
3825 */
3826 assert(images != (Image *) NULL);
3827 assert(images->signature == MagickCoreSignature);
3828 assert(exception != (ExceptionInfo *) NULL);
3829 assert(exception->signature == MagickCoreSignature);
3830 if (IsEventLogging() != MagickFalse)
3831 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
3832 image=images;
3833 alpha_trait=image->alpha_trait;
3834 number_images=1;
3835 width=image->columns;
3836 height=image->rows;
3837 next=GetNextImageInList(image);
3838 for ( ; next != (Image *) NULL; next=GetNextImageInList(next))
3839 {
3840 if (next->alpha_trait != UndefinedPixelTrait)
3841 alpha_trait=BlendPixelTrait;
3842 number_images++;
3843 if (stack != MagickFalse)
3844 {
3845 if (next->columns > width)
3846 width=next->columns;
3847 height+=next->rows;
3848 if (next->previous != (Image *) NULL)
3849 height=(size_t) MagickMax((ssize_t) height+offset,0U);
3850 continue;
3851 }
3852 width+=next->columns;
3853 if (next->previous != (Image *) NULL)
3854 width=(size_t) MagickMax((ssize_t) width+offset,0U);
3855 if (next->rows > height)
3856 height=next->rows;
3857 }
3858 /*
3859 Smush images.
3860 */
3861 smush_image=CloneImage(image,width,height,MagickTrue,exception);
3862 if (smush_image == (Image *) NULL)
3863 return((Image *) NULL);
3864 if (SetImageStorageClass(smush_image,DirectClass,exception) == MagickFalse)
3865 {
3866 smush_image=DestroyImage(smush_image);
3867 return((Image *) NULL);
3868 }
3869 smush_image->alpha_trait=alpha_trait;
3870 (void) SetImageBackgroundColor(smush_image,exception);
3871 status=MagickTrue;
3872 x_offset=0;
3873 y_offset=0;
3874 for (n=0; n < (MagickOffsetType) number_images; n++)
3875 {
3876 SetGeometry(smush_image,&geometry);
3877 GravityAdjustGeometry(image->columns,image->rows,image->gravity,&geometry);
3878 if (stack != MagickFalse)
3879 {
3880 x_offset-=geometry.x;
3881 y_offset-=SmushYGap(smush_image,image,offset,exception);
3882 }
3883 else
3884 {
3885 x_offset-=SmushXGap(smush_image,image,offset,exception);
3886 y_offset-=geometry.y;
3887 }
3888 status=CompositeImage(smush_image,image,OverCompositeOp,MagickTrue,x_offset,
3889 y_offset,exception);
3890 proceed=SetImageProgress(image,SmushImageTag,n,number_images);
3891 if (proceed == MagickFalse)
3892 break;
3893 if (stack == MagickFalse)
3894 {
3895 x_offset+=(ssize_t) image->columns;
3896 y_offset=0;
3897 }
3898 else
3899 {
3900 x_offset=0;
3901 y_offset+=(ssize_t) image->rows;
3902 }
3903 image=GetNextImageInList(image);
3904 }
3905 if (stack == MagickFalse)
3906 smush_image->columns=(size_t) x_offset;
3907 else
3908 smush_image->rows=(size_t) y_offset;
3909 if (status == MagickFalse)
3910 smush_image=DestroyImage(smush_image);
3911 return(smush_image);
3912}
3913␌
3914/*
3915%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3916% %
3917% %
3918% %
3919% S t r i p I m a g e %
3920% %
3921% %
3922% %
3923%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3924%
3925% StripImage() strips an image of all profiles and comments.
3926%
3927% The format of the StripImage method is:
3928%
3929% MagickBooleanType StripImage(Image *image,ExceptionInfo *exception)
3930%
3931% A description of each parameter follows:
3932%
3933% o image: the image.
3934%
3935% o exception: return any errors or warnings in this structure.
3936%
3937*/
3938MagickExport MagickBooleanType StripImage(Image *image,
3939 ExceptionInfo *magick_unused(exception))
3940{
3941 MagickBooleanType
3942 status;
3943
3944 magick_unreferenced(exception);
3945 assert(image != (Image *) NULL);
3946 if (IsEventLogging() != MagickFalse)
3947 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3948 DestroyImageProfiles(image);
3949 (void) DeleteImageProperty(image,"comment");
3950 (void) DeleteImageProperty(image,"date:create");
3951 (void) DeleteImageProperty(image,"date:modify");
3952 (void) DeleteImageProperty(image,"date:timestamp");
3953 status=SetImageArtifact(image,"png:exclude-chunk",
3954 "bKGD,caNv,cHRM,eXIf,gAMA,iCCP,iTXt,pHYs,sRGB,tEXt,zCCP,zTXt,date");
3955 return(status);
3956}
3957␌
3958/*
3959%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3960% %
3961% %
3962% %
3963+ S y n c I m a g e %
3964% %
3965% %
3966% %
3967%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3968%
3969% SyncImage() initializes the red, green, and blue intensities of each pixel
3970% as defined by the colormap index.
3971%
3972% The format of the SyncImage method is:
3973%
3974% MagickBooleanType SyncImage(Image *image,ExceptionInfo *exception)
3975%
3976% A description of each parameter follows:
3977%
3978% o image: the image.
3979%
3980% o exception: return any errors or warnings in this structure.
3981%
3982*/
3983
3984static inline Quantum PushColormapIndex(Image *image,const Quantum index,
3985 MagickBooleanType *range_exception)
3986{
3987 if ((size_t) index < image->colors)
3988 return(index);
3989 *range_exception=MagickTrue;
3990 return((Quantum) 0);
3991}
3992
3993MagickExport MagickBooleanType SyncImage(Image *image,ExceptionInfo *exception)
3994{
3995 CacheView
3996 *image_view;
3997
3998 MagickBooleanType
3999 range_exception,
4000 status,
4001 taint;
4002
4003 ssize_t
4004 y;
4005
4006 assert(image != (Image *) NULL);
4007 assert(image->signature == MagickCoreSignature);
4008 if (IsEventLogging() != MagickFalse)
4009 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
4010 if (image->ping != MagickFalse)
4011 return(MagickTrue);
4012 if (image->storage_class != PseudoClass)
4013 return(MagickFalse);
4014 assert(image->colormap != (PixelInfo *) NULL);
4015 range_exception=MagickFalse;
4016 status=MagickTrue;
4017 taint=image->taint;
4018 image_view=AcquireAuthenticCacheView(image,exception);
4019#if defined(MAGICKCORE_OPENMP_SUPPORT)
4020 #pragma omp parallel for schedule(static) shared(range_exception,status) \
4021 magick_number_threads(image,image,image->rows,2)
4022#endif
4023 for (y=0; y < (ssize_t) image->rows; y++)
4024 {
4025 Quantum
4026 index;
4027
4028 Quantum
4029 *magick_restrict q;
4030
4031 ssize_t
4032 x;
4033
4034 if (status == MagickFalse)
4035 continue;
4036 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
4037 if (q == (Quantum *) NULL)
4038 {
4039 status=MagickFalse;
4040 continue;
4041 }
4042 for (x=0; x < (ssize_t) image->columns; x++)
4043 {
4044 index=PushColormapIndex(image,GetPixelIndex(image,q),&range_exception);
4045 SetPixelViaPixelInfo(image,image->colormap+(ssize_t) index,q);
4046 q+=(ptrdiff_t) GetPixelChannels(image);
4047 }
4048 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
4049 status=MagickFalse;
4050 }
4051 image_view=DestroyCacheView(image_view);
4052 image->taint=taint;
4053 if ((image->ping == MagickFalse) && (range_exception != MagickFalse))
4054 (void) ThrowMagickException(exception,GetMagickModule(),
4055 CorruptImageWarning,"InvalidColormapIndex","`%s'",image->filename);
4056 return(status);
4057}
4058␌
4059/*
4060%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4061% %
4062% %
4063% %
4064% S y n c I m a g e S e t t i n g s %
4065% %
4066% %
4067% %
4068%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4069%
4070% SyncImageSettings() syncs any image_info global options into per-image
4071% attributes.
4072%
4073% Note: in IMv6 free form 'options' were always mapped into 'artifacts', so
4074% that operations and coders can find such settings. In IMv7 if a desired
4075% per-image artifact is not set, then it will directly look for a global
4076% option as a fallback, as such this copy is no longer needed, only the
4077% link set up.
4078%
4079% The format of the SyncImageSettings method is:
4080%
4081% MagickBooleanType SyncImageSettings(const ImageInfo *image_info,
4082% Image *image,ExceptionInfo *exception)
4083% MagickBooleanType SyncImagesSettings(const ImageInfo *image_info,
4084% Image *image,ExceptionInfo *exception)
4085%
4086% A description of each parameter follows:
4087%
4088% o image_info: the image info.
4089%
4090% o image: the image.
4091%
4092% o exception: return any errors or warnings in this structure.
4093%
4094*/
4095
4096MagickExport MagickBooleanType SyncImagesSettings(ImageInfo *image_info,
4097 Image *images,ExceptionInfo *exception)
4098{
4099 Image
4100 *image;
4101
4102 assert(image_info != (const ImageInfo *) NULL);
4103 assert(image_info->signature == MagickCoreSignature);
4104 assert(images != (Image *) NULL);
4105 assert(images->signature == MagickCoreSignature);
4106 if (IsEventLogging() != MagickFalse)
4107 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
4108 image=images;
4109 for ( ; image != (Image *) NULL; image=GetNextImageInList(image))
4110 (void) SyncImageSettings(image_info,image,exception);
4111 (void) DeleteImageOption(image_info,"page");
4112 return(MagickTrue);
4113}
4114
4115MagickExport MagickBooleanType SyncImageSettings(const ImageInfo *image_info,
4116 Image *image,ExceptionInfo *exception)
4117{
4118 const char
4119 *option;
4120
4121 GeometryInfo
4122 geometry_info;
4123
4124 MagickStatusType
4125 flags;
4126
4127 ResolutionType
4128 units;
4129
4130 /*
4131 Sync image options.
4132 */
4133 assert(image_info != (const ImageInfo *) NULL);
4134 assert(image_info->signature == MagickCoreSignature);
4135 assert(image != (Image *) NULL);
4136 assert(image->signature == MagickCoreSignature);
4137 if (IsEventLogging() != MagickFalse)
4138 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
4139 option=GetImageOption(image_info,"background");
4140 if (option != (const char *) NULL)
4141 (void) QueryColorCompliance(option,AllCompliance,&image->background_color,
4142 exception);
4143 option=GetImageOption(image_info,"black-point-compensation");
4144 if (option != (const char *) NULL)
4145 image->black_point_compensation=(MagickBooleanType) ParseCommandOption(
4146 MagickBooleanOptions,MagickFalse,option);
4147 option=GetImageOption(image_info,"blue-primary");
4148 if (option != (const char *) NULL)
4149 {
4150 flags=ParseGeometry(option,&geometry_info);
4151 if ((flags & RhoValue) != 0)
4152 image->chromaticity.blue_primary.x=geometry_info.rho;
4153 image->chromaticity.blue_primary.y=image->chromaticity.blue_primary.x;
4154 if ((flags & SigmaValue) != 0)
4155 image->chromaticity.blue_primary.y=geometry_info.sigma;
4156 }
4157 option=GetImageOption(image_info,"bordercolor");
4158 if (option != (const char *) NULL)
4159 (void) QueryColorCompliance(option,AllCompliance,&image->border_color,
4160 exception);
4161 /* FUTURE: do not sync compose to per-image compose setting here */
4162 option=GetImageOption(image_info,"compose");
4163 if (option != (const char *) NULL)
4164 image->compose=(CompositeOperator) ParseCommandOption(MagickComposeOptions,
4165 MagickFalse,option);
4166 /* -- */
4167 option=GetImageOption(image_info,"compress");
4168 if (option != (const char *) NULL)
4169 image->compression=(CompressionType) ParseCommandOption(
4170 MagickCompressOptions,MagickFalse,option);
4171 option=GetImageOption(image_info,"debug");
4172 if (option != (const char *) NULL)
4173 image->debug=(MagickBooleanType) ParseCommandOption(MagickBooleanOptions,
4174 MagickFalse,option);
4175 option=GetImageOption(image_info,"density");
4176 if (option != (const char *) NULL)
4177 {
4178 flags=ParseGeometry(option,&geometry_info);
4179 if ((flags & RhoValue) != 0)
4180 image->resolution.x=geometry_info.rho;
4181 image->resolution.y=image->resolution.x;
4182 if ((flags & SigmaValue) != 0)
4183 image->resolution.y=geometry_info.sigma;
4184 }
4185 option=GetImageOption(image_info,"depth");
4186 if (option != (const char *) NULL)
4187 image->depth=StringToUnsignedLong(option);
4188 option=GetImageOption(image_info,"endian");
4189 if (option != (const char *) NULL)
4190 image->endian=(EndianType) ParseCommandOption(MagickEndianOptions,
4191 MagickFalse,option);
4192 option=GetImageOption(image_info,"filter");
4193 if (option != (const char *) NULL)
4194 image->filter=(FilterType) ParseCommandOption(MagickFilterOptions,
4195 MagickFalse,option);
4196 option=GetImageOption(image_info,"fuzz");
4197 if (option != (const char *) NULL)
4198 image->fuzz=StringToDoubleInterval(option,(double) QuantumRange+1.0);
4199 option=GetImageOption(image_info,"gravity");
4200 if (option != (const char *) NULL)
4201 image->gravity=(GravityType) ParseCommandOption(MagickGravityOptions,
4202 MagickFalse,option);
4203 option=GetImageOption(image_info,"green-primary");
4204 if (option != (const char *) NULL)
4205 {
4206 flags=ParseGeometry(option,&geometry_info);
4207 if ((flags & RhoValue) != 0)
4208 image->chromaticity.green_primary.x=geometry_info.rho;
4209 image->chromaticity.green_primary.y=image->chromaticity.green_primary.x;
4210 if ((flags & SigmaValue) != 0)
4211 image->chromaticity.green_primary.y=geometry_info.sigma;
4212 }
4213 option=GetImageOption(image_info,"intent");
4214 if (option != (const char *) NULL)
4215 image->rendering_intent=(RenderingIntent) ParseCommandOption(
4216 MagickIntentOptions,MagickFalse,option);
4217 option=GetImageOption(image_info,"intensity");
4218 if (option != (const char *) NULL)
4219 image->intensity=(PixelIntensityMethod) ParseCommandOption(
4220 MagickPixelIntensityOptions,MagickFalse,option);
4221 option=GetImageOption(image_info,"interlace");
4222 if (option != (const char *) NULL)
4223 image->interlace=(InterlaceType) ParseCommandOption(MagickInterlaceOptions,
4224 MagickFalse,option);
4225 option=GetImageOption(image_info,"interpolate");
4226 if (option != (const char *) NULL)
4227 image->interpolate=(PixelInterpolateMethod) ParseCommandOption(
4228 MagickInterpolateOptions,MagickFalse,option);
4229 option=GetImageOption(image_info,"loop");
4230 if (option != (const char *) NULL)
4231 image->iterations=StringToUnsignedLong(option);
4232 option=GetImageOption(image_info,"mattecolor");
4233 if (option != (const char *) NULL)
4234 (void) QueryColorCompliance(option,AllCompliance,&image->matte_color,
4235 exception);
4236 option=GetImageOption(image_info,"orient");
4237 if (option != (const char *) NULL)
4238 image->orientation=(OrientationType) ParseCommandOption(
4239 MagickOrientationOptions,MagickFalse,option);
4240 option=GetImageOption(image_info,"page");
4241 if (option != (const char *) NULL)
4242 {
4243 char
4244 *geometry;
4245
4246 geometry=GetPageGeometry(option);
4247 flags=ParseAbsoluteGeometry(geometry,&image->page);
4248 geometry=DestroyString(geometry);
4249 }
4250 option=GetImageOption(image_info,"quality");
4251 if (option != (const char *) NULL)
4252 image->quality=StringToUnsignedLong(option);
4253 option=GetImageOption(image_info,"red-primary");
4254 if (option != (const char *) NULL)
4255 {
4256 flags=ParseGeometry(option,&geometry_info);
4257 if ((flags & RhoValue) != 0)
4258 image->chromaticity.red_primary.x=geometry_info.rho;
4259 image->chromaticity.red_primary.y=image->chromaticity.red_primary.x;
4260 if ((flags & SigmaValue) != 0)
4261 image->chromaticity.red_primary.y=geometry_info.sigma;
4262 }
4263 if (image_info->quality != UndefinedCompressionQuality)
4264 image->quality=image_info->quality;
4265 option=GetImageOption(image_info,"scene");
4266 if (option != (const char *) NULL)
4267 image->scene=StringToUnsignedLong(option);
4268 option=GetImageOption(image_info,"taint");
4269 if (option != (const char *) NULL)
4270 image->taint=(MagickBooleanType) ParseCommandOption(MagickBooleanOptions,
4271 MagickFalse,option);
4272 option=GetImageOption(image_info,"tile-offset");
4273 if (option != (const char *) NULL)
4274 {
4275 char
4276 *geometry;
4277
4278 geometry=GetPageGeometry(option);
4279 flags=ParseAbsoluteGeometry(geometry,&image->tile_offset);
4280 geometry=DestroyString(geometry);
4281 }
4282 option=GetImageOption(image_info,"transparent-color");
4283 if (option != (const char *) NULL)
4284 (void) QueryColorCompliance(option,AllCompliance,&image->transparent_color,
4285 exception);
4286 option=GetImageOption(image_info,"type");
4287 if (option != (const char *) NULL)
4288 image->type=(ImageType) ParseCommandOption(MagickTypeOptions,MagickFalse,
4289 option);
4290 option=GetImageOption(image_info,"units");
4291 units=image_info->units;
4292 if (option != (const char *) NULL)
4293 units=(ResolutionType) ParseCommandOption(MagickResolutionOptions,
4294 MagickFalse,option);
4295 if (units != UndefinedResolution)
4296 {
4297 if (image->units != units)
4298 switch (image->units)
4299 {
4300 case PixelsPerInchResolution:
4301 {
4302 if (units == PixelsPerCentimeterResolution)
4303 {
4304 image->resolution.x/=2.54;
4305 image->resolution.y/=2.54;
4306 }
4307 break;
4308 }
4309 case PixelsPerCentimeterResolution:
4310 {
4311 if (units == PixelsPerInchResolution)
4312 {
4313 image->resolution.x=(double) ((size_t) (100.0*2.54*
4314 image->resolution.x+0.5))/100.0;
4315 image->resolution.y=(double) ((size_t) (100.0*2.54*
4316 image->resolution.y+0.5))/100.0;
4317 }
4318 break;
4319 }
4320 default:
4321 break;
4322 }
4323 image->units=units;
4324 option=GetImageOption(image_info,"density");
4325 if (option != (const char *) NULL)
4326 {
4327 flags=ParseGeometry(option,&geometry_info);
4328 if ((flags & RhoValue) != 0)
4329 image->resolution.x=geometry_info.rho;
4330 image->resolution.y=image->resolution.x;
4331 if ((flags & SigmaValue) != 0)
4332 image->resolution.y=geometry_info.sigma;
4333 }
4334 }
4335 option=GetImageOption(image_info,"virtual-pixel");
4336 if (option != (const char *) NULL)
4337 (void) SetImageVirtualPixelMethod(image,(VirtualPixelMethod)
4338 ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,option),
4339 exception);
4340 option=GetImageOption(image_info,"white-point");
4341 if (option != (const char *) NULL)
4342 {
4343 flags=ParseGeometry(option,&geometry_info);
4344 if ((flags & RhoValue) != 0)
4345 image->chromaticity.white_point.x=geometry_info.rho;
4346 image->chromaticity.white_point.y=image->chromaticity.white_point.x;
4347 if ((flags & SigmaValue) != 0)
4348 image->chromaticity.white_point.y=geometry_info.sigma;
4349 }
4350 /*
4351 Pointer to allow the lookup of pre-image artifact will fallback to a global
4352 option setting/define. This saves a lot of duplication of global options
4353 into per-image artifacts, while ensuring only specifically set per-image
4354 artifacts are preserved when parenthesis ends.
4355 */
4356 if (image->image_info != (ImageInfo *) NULL)
4357 image->image_info=DestroyImageInfo(image->image_info);
4358 image->image_info=CloneImageInfo(image_info);
4359 return(MagickTrue);
4360}