2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 % IIIII M M AAA GGGG EEEEE %
8 % I M M M AAAAA G GG EEE %
10 % IIIII M M A A GGGG EEEEE %
13 % MagickCore Image Methods %
20 % Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % http://www.imagemagick.org/script/license.php %
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. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
43 #include "MagickCore/studio.h"
44 #include "MagickCore/animate.h"
45 #include "MagickCore/artifact.h"
46 #include "MagickCore/attribute.h"
47 #include "MagickCore/blob.h"
48 #include "MagickCore/blob-private.h"
49 #include "MagickCore/cache.h"
50 #include "MagickCore/cache-private.h"
51 #include "MagickCore/cache-view.h"
52 #include "MagickCore/client.h"
53 #include "MagickCore/color.h"
54 #include "MagickCore/color-private.h"
55 #include "MagickCore/colormap.h"
56 #include "MagickCore/colorspace.h"
57 #include "MagickCore/colorspace-private.h"
58 #include "MagickCore/composite.h"
59 #include "MagickCore/composite-private.h"
60 #include "MagickCore/compress.h"
61 #include "MagickCore/constitute.h"
62 #include "MagickCore/display.h"
63 #include "MagickCore/draw.h"
64 #include "MagickCore/enhance.h"
65 #include "MagickCore/exception.h"
66 #include "MagickCore/exception-private.h"
67 #include "MagickCore/gem.h"
68 #include "MagickCore/geometry.h"
69 #include "MagickCore/histogram.h"
70 #include "MagickCore/image-private.h"
71 #include "MagickCore/list.h"
72 #include "MagickCore/magic.h"
73 #include "MagickCore/magick.h"
74 #include "MagickCore/magick-private.h"
75 #include "MagickCore/memory_.h"
76 #include "MagickCore/module.h"
77 #include "MagickCore/monitor.h"
78 #include "MagickCore/monitor-private.h"
79 #include "MagickCore/option.h"
80 #include "MagickCore/paint.h"
81 #include "MagickCore/pixel-accessor.h"
82 #include "MagickCore/profile.h"
83 #include "MagickCore/property.h"
84 #include "MagickCore/quantize.h"
85 #include "MagickCore/random_.h"
86 #include "MagickCore/resource_.h"
87 #include "MagickCore/segment.h"
88 #include "MagickCore/semaphore.h"
89 #include "MagickCore/signature-private.h"
90 #include "MagickCore/statistic.h"
91 #include "MagickCore/string_.h"
92 #include "MagickCore/string-private.h"
93 #include "MagickCore/thread-private.h"
94 #include "MagickCore/threshold.h"
95 #include "MagickCore/timer.h"
96 #include "MagickCore/token.h"
97 #include "MagickCore/utility.h"
98 #include "MagickCore/utility-private.h"
99 #include "MagickCore/version.h"
100 #include "MagickCore/xwindow-private.h"
103 Constant declaration.
106 BackgroundColor[] = "#ffffff", /* white */
107 BorderColor[] = "#dfdfdf", /* gray */
108 DefaultTileFrame[] = "15x15+3+3",
109 DefaultTileGeometry[] = "120x120+4+3>",
110 DefaultTileLabel[] = "%f\n%G\n%b",
111 ForegroundColor[] = "#000", /* black */
112 LoadImageTag[] = "Load/Image",
113 LoadImagesTag[] = "Load/Images",
114 MatteColor[] = "#bdbdbd", /* gray */
115 PSDensityGeometry[] = "72.0x72.0",
116 PSPageGeometry[] = "612x792",
117 SaveImageTag[] = "Save/Image",
118 SaveImagesTag[] = "Save/Images",
119 TransparentColor[] = "#00000000"; /* transparent black */
122 DefaultResolution = 72.0;
125 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
129 % A c q u i r e I m a g e %
133 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
135 % AcquireImage() returns a pointer to an image structure initialized to
138 % The format of the AcquireImage method is:
140 % Image *AcquireImage(const ImageInfo *image_info,ExceptionInfo *exception)
142 % A description of each parameter follows:
144 % o image_info: Many of the image default values are set from this
145 % structure. For example, filename, compression, depth, background color,
148 % o exception: return any errors or warnings in this structure.
151 MagickExport Image *AcquireImage(const ImageInfo *image_info,
152 ExceptionInfo *exception)
164 Allocate image structure.
166 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
167 image=(Image *) AcquireMagickMemory(sizeof(*image));
168 if (image == (Image *) NULL)
169 ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
170 (void) ResetMagickMemory(image,0,sizeof(*image));
172 Initialize Image structure.
174 (void) CopyMagickString(image->magick,"MIFF",MaxTextExtent);
175 image->storage_class=DirectClass;
176 image->depth=MAGICKCORE_QUANTUM_DEPTH;
177 image->colorspace=sRGBColorspace;
178 image->rendering_intent=PerceptualIntent;
179 image->gamma=1.000f/2.200f;
180 image->chromaticity.red_primary.x=0.6400f;
181 image->chromaticity.red_primary.y=0.3300f;
182 image->chromaticity.red_primary.z=0.0300f;
183 image->chromaticity.green_primary.x=0.3000f;
184 image->chromaticity.green_primary.y=0.6000f;
185 image->chromaticity.green_primary.z=0.1000f;
186 image->chromaticity.blue_primary.x=0.1500f;
187 image->chromaticity.blue_primary.y=0.0600f;
188 image->chromaticity.blue_primary.z=0.7900f;
189 image->chromaticity.white_point.x=0.3127f;
190 image->chromaticity.white_point.y=0.3290f;
191 image->chromaticity.white_point.z=0.3583f;
192 image->interlace=NoInterlace;
193 image->ticks_per_second=UndefinedTicksPerSecond;
194 image->compose=OverCompositeOp;
195 (void) QueryColorCompliance(BackgroundColor,AllCompliance,
196 &image->background_color,exception);
197 (void) QueryColorCompliance(BorderColor,AllCompliance,&image->border_color,
199 (void) QueryColorCompliance(MatteColor,AllCompliance,&image->matte_color,
201 (void) QueryColorCompliance(TransparentColor,AllCompliance,
202 &image->transparent_color,exception);
203 GetTimerInfo(&image->timer);
204 image->cache=AcquirePixelCache(0);
205 image->channel_mask=DefaultChannels;
206 image->channel_map=AcquirePixelChannelMap();
207 image->blob=CloneBlobInfo((BlobInfo *) NULL);
208 image->debug=IsEventLogging();
209 image->reference_count=1;
210 image->semaphore=AllocateSemaphoreInfo();
211 image->signature=MagickSignature;
212 if (image_info == (ImageInfo *) NULL)
217 SetBlobExempt(image,image_info->file != (FILE *) NULL ? MagickTrue :
219 (void) CopyMagickString(image->filename,image_info->filename,MaxTextExtent);
220 (void) CopyMagickString(image->magick_filename,image_info->filename,
222 (void) CopyMagickString(image->magick,image_info->magick,MaxTextExtent);
223 if (image_info->size != (char *) NULL)
225 (void) ParseAbsoluteGeometry(image_info->size,&image->extract_info);
226 image->columns=image->extract_info.width;
227 image->rows=image->extract_info.height;
228 image->offset=image->extract_info.x;
229 image->extract_info.x=0;
230 image->extract_info.y=0;
232 if (image_info->extract != (char *) NULL)
237 flags=ParseAbsoluteGeometry(image_info->extract,&geometry);
238 if (((flags & XValue) != 0) || ((flags & YValue) != 0))
240 image->extract_info=geometry;
241 Swap(image->columns,image->extract_info.width);
242 Swap(image->rows,image->extract_info.height);
245 image->compression=image_info->compression;
246 image->quality=image_info->quality;
247 image->endian=image_info->endian;
248 image->interlace=image_info->interlace;
249 image->units=image_info->units;
250 if (image_info->density != (char *) NULL)
255 flags=ParseGeometry(image_info->density,&geometry_info);
256 image->resolution.x=geometry_info.rho;
257 image->resolution.y=geometry_info.sigma;
258 if ((flags & SigmaValue) == 0)
259 image->resolution.y=image->resolution.x;
261 if (image_info->page != (char *) NULL)
266 image->page=image->extract_info;
267 geometry=GetPageGeometry(image_info->page);
268 (void) ParseAbsoluteGeometry(geometry,&image->page);
269 geometry=DestroyString(geometry);
271 if (image_info->depth != 0)
272 image->depth=image_info->depth;
273 image->dither=image_info->dither;
274 image->background_color=image_info->background_color;
275 image->border_color=image_info->border_color;
276 image->matte_color=image_info->matte_color;
277 image->transparent_color=image_info->transparent_color;
278 image->ping=image_info->ping;
279 image->progress_monitor=image_info->progress_monitor;
280 image->client_data=image_info->client_data;
281 if (image_info->cache != (void *) NULL)
282 ClonePixelCacheMethods(image->cache,image_info->cache);
284 /* Set all global options that map to per-image settings */
285 (void) SyncImageSettings(image_info,image,exception);
286 /* At this point the image is not yet part of this image_info structure */
287 image->image_info = (ImageInfo *) NULL;
289 /* global options that are only set for new images */
290 option=GetImageOption(image_info,"delay");
291 if (option != (const char *) NULL)
296 flags=ParseGeometry(option,&geometry_info);
297 if ((flags & GreaterValue) != 0)
299 if (image->delay > (size_t) floor(geometry_info.rho+0.5))
300 image->delay=(size_t) floor(geometry_info.rho+0.5);
303 if ((flags & LessValue) != 0)
305 if (image->delay < (size_t) floor(geometry_info.rho+0.5))
306 image->ticks_per_second=(ssize_t) floor(geometry_info.sigma+0.5);
309 image->delay=(size_t) floor(geometry_info.rho+0.5);
310 if ((flags & SigmaValue) != 0)
311 image->ticks_per_second=(ssize_t) floor(geometry_info.sigma+0.5);
313 option=GetImageOption(image_info,"dispose");
314 if (option != (const char *) NULL)
315 image->dispose=(DisposeType) ParseCommandOption(MagickDisposeOptions,
321 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
325 % A c q u i r e I m a g e I n f o %
329 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
331 % AcquireImageInfo() allocates the ImageInfo structure.
333 % The format of the AcquireImageInfo method is:
335 % ImageInfo *AcquireImageInfo(void)
338 MagickExport ImageInfo *AcquireImageInfo(void)
343 image_info=(ImageInfo *) AcquireMagickMemory(sizeof(*image_info));
344 if (image_info == (ImageInfo *) NULL)
345 ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
346 GetImageInfo(image_info);
351 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
355 % A c q u i r e N e x t I m a g e %
359 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
361 % AcquireNextImage() initializes the next image in a sequence to
362 % default values. The next member of image points to the newly allocated
363 % image. If there is a memory shortage, next is assigned NULL.
365 % The format of the AcquireNextImage method is:
367 % void AcquireNextImage(const ImageInfo *image_info,Image *image,
368 % ExceptionInfo *exception)
370 % A description of each parameter follows:
372 % o image_info: Many of the image default values are set from this
373 % structure. For example, filename, compression, depth, background color,
376 % o image: the image.
378 % o exception: return any errors or warnings in this structure.
381 MagickExport void AcquireNextImage(const ImageInfo *image_info,Image *image,
382 ExceptionInfo *exception)
385 Allocate image structure.
387 assert(image != (Image *) NULL);
388 assert(image->signature == MagickSignature);
389 if (image->debug != MagickFalse)
390 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
391 image->next=AcquireImage(image_info,exception);
392 if (GetNextImageInList(image) == (Image *) NULL)
394 (void) CopyMagickString(GetNextImageInList(image)->filename,image->filename,
396 if (image_info != (ImageInfo *) NULL)
397 (void) CopyMagickString(GetNextImageInList(image)->filename,
398 image_info->filename,MaxTextExtent);
399 DestroyBlob(GetNextImageInList(image));
400 image->next->blob=ReferenceBlob(image->blob);
401 image->next->endian=image->endian;
402 image->next->scene=image->scene+1;
403 image->next->previous=image;
407 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
411 % A p p e n d I m a g e s %
415 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
417 % AppendImages() takes all images from the current image pointer to the end
418 % of the image list and appends them to each other top-to-bottom if the
419 % stack parameter is true, otherwise left-to-right.
421 % The current gravity setting effects how the image is justified in the
424 % The format of the AppendImages method is:
426 % Image *AppendImages(const Image *images,const MagickBooleanType stack,
427 % ExceptionInfo *exception)
429 % A description of each parameter follows:
431 % o images: the image sequence.
433 % o stack: A value other than 0 stacks the images top-to-bottom.
435 % o exception: return any errors or warnings in this structure.
438 MagickExport Image *AppendImages(const Image *images,
439 const MagickBooleanType stack,ExceptionInfo *exception)
441 #define AppendImageTag "Append/Image"
476 Compute maximum area of appended area.
478 assert(images != (Image *) NULL);
479 assert(images->signature == MagickSignature);
480 if (images->debug != MagickFalse)
481 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
482 assert(exception != (ExceptionInfo *) NULL);
483 assert(exception->signature == MagickSignature);
484 alpha_trait=images->alpha_trait;
486 width=images->columns;
488 next=GetNextImageInList(images);
489 for ( ; next != (Image *) NULL; next=GetNextImageInList(next))
491 if (next->alpha_trait == BlendPixelTrait)
492 alpha_trait=BlendPixelTrait;
494 if (stack != MagickFalse)
496 if (next->columns > width)
501 width+=next->columns;
502 if (next->rows > height)
508 append_image=CloneImage(images,width,height,MagickTrue,exception);
509 if (append_image == (Image *) NULL)
510 return((Image *) NULL);
511 if (SetImageStorageClass(append_image,DirectClass,exception) == MagickFalse)
513 append_image=DestroyImage(append_image);
514 return((Image *) NULL);
516 append_image->alpha_trait=alpha_trait;
517 (void) SetImageBackgroundColor(append_image,exception);
522 append_view=AcquireAuthenticCacheView(append_image,exception);
523 for (n=0; n < (MagickOffsetType) number_images; n++)
531 image=CloneImage(next,0,0,MagickTrue,exception);
532 if (image == (Image *) NULL)
534 (void) TransformImageColorspace(image,append_image->colorspace,exception);
535 SetGeometry(append_image,&geometry);
536 GravityAdjustGeometry(image->columns,image->rows,image->gravity,&geometry);
537 if (stack != MagickFalse)
538 x_offset-=geometry.x;
540 y_offset-=geometry.y;
541 image_view=AcquireVirtualCacheView(image,exception);
542 #if defined(MAGICKCORE_OPENMP_SUPPORT)
543 #pragma omp parallel for schedule(static,4) shared(status) \
544 dynamic_number_threads(image,image->columns,image->rows,1)
546 for (y=0; y < (ssize_t) image->rows; y++)
554 register const Quantum
563 if (status == MagickFalse)
565 p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
566 q=QueueCacheViewAuthenticPixels(append_view,x_offset,y+y_offset,
567 image->columns,1,exception);
568 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
573 GetPixelInfo(image,&pixel);
574 for (x=0; x < (ssize_t) image->columns; x++)
576 if (GetPixelMask(image,p) != 0)
578 p+=GetPixelChannels(image);
579 q+=GetPixelChannels(append_image);
582 GetPixelInfoPixel(image,p,&pixel);
583 SetPixelInfoPixel(append_image,&pixel,q);
584 p+=GetPixelChannels(image);
585 q+=GetPixelChannels(append_image);
587 sync=SyncCacheViewAuthenticPixels(append_view,exception);
588 if (sync == MagickFalse)
591 image_view=DestroyCacheView(image_view);
592 if (stack == MagickFalse)
594 x_offset+=(ssize_t) image->columns;
600 y_offset+=(ssize_t) image->rows;
602 image=DestroyImage(image);
603 proceed=SetImageProgress(append_image,AppendImageTag,n,number_images);
604 if (proceed == MagickFalse)
606 next=GetNextImageInList(next);
608 append_view=DestroyCacheView(append_view);
609 if (status == MagickFalse)
610 append_image=DestroyImage(append_image);
611 return(append_image);
615 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
619 % C a t c h I m a g e E x c e p t i o n %
623 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
625 % CatchImageException() returns if no exceptions are found in the image
626 % sequence, otherwise it determines the most severe exception and reports
627 % it as a warning or error depending on the severity.
629 % The format of the CatchImageException method is:
631 % ExceptionType CatchImageException(Image *image)
633 % A description of each parameter follows:
635 % o image: An image sequence.
638 MagickExport ExceptionType CatchImageException(Image *image)
646 assert(image != (const Image *) NULL);
647 assert(image->signature == MagickSignature);
648 if (image->debug != MagickFalse)
649 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
650 exception=AcquireExceptionInfo();
651 CatchException(exception);
652 severity=exception->severity;
653 exception=DestroyExceptionInfo(exception);
658 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
662 % C l i p I m a g e P a t h %
666 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
668 % ClipImagePath() sets the image clip mask based any clipping path information
671 % The format of the ClipImagePath method is:
673 % MagickBooleanType ClipImagePath(Image *image,const char *pathname,
674 % const MagickBooleanType inside,ExceptionInfo *exception)
676 % A description of each parameter follows:
678 % o image: the image.
680 % o pathname: name of clipping path resource. If name is preceded by #, use
681 % clipping path numbered by name.
683 % o inside: if non-zero, later operations take effect inside clipping path.
684 % Otherwise later operations take effect outside clipping path.
686 % o exception: return any errors or warnings in this structure.
690 MagickExport MagickBooleanType ClipImage(Image *image,ExceptionInfo *exception)
692 return(ClipImagePath(image,"#1",MagickTrue,exception));
695 MagickExport MagickBooleanType ClipImagePath(Image *image,const char *pathname,
696 const MagickBooleanType inside,ExceptionInfo *exception)
698 #define ClipImagePathTag "ClipPath/Image"
712 assert(image != (const Image *) NULL);
713 assert(image->signature == MagickSignature);
714 if (image->debug != MagickFalse)
715 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
716 assert(pathname != NULL);
717 property=AcquireString(pathname);
718 (void) FormatLocaleString(property,MaxTextExtent,"8BIM:1999,2998:%s",
720 value=GetImageProperty(image,property,exception);
721 property=DestroyString(property);
722 if (value == (const char *) NULL)
724 ThrowFileException(exception,OptionError,"NoClipPathDefined",
728 image_info=AcquireImageInfo();
729 (void) CopyMagickString(image_info->filename,image->filename,MaxTextExtent);
730 (void) ConcatenateMagickString(image_info->filename,pathname,MaxTextExtent);
731 clip_mask=BlobToImage(image_info,value,strlen(value),exception);
732 image_info=DestroyImageInfo(image_info);
733 if (clip_mask == (Image *) NULL)
735 if (clip_mask->storage_class == PseudoClass)
737 (void) SyncImage(clip_mask,exception);
738 if (SetImageStorageClass(clip_mask,DirectClass,exception) == MagickFalse)
741 if (inside == MagickFalse)
742 (void) NegateImage(clip_mask,MagickFalse,exception);
743 (void) FormatLocaleString(clip_mask->magick_filename,MaxTextExtent,
744 "8BIM:1999,2998:%s\nPS",pathname);
745 (void) SetImageMask(image,clip_mask,exception);
746 clip_mask=DestroyImage(clip_mask);
751 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
755 % C l o n e I m a g e %
759 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
761 % CloneImage() copies an image and returns the copy as a new image object.
763 % If the specified columns and rows is 0, an exact copy of the image is
764 % returned, otherwise the pixel data is undefined and must be initialized
765 % with the QueueAuthenticPixels() and SyncAuthenticPixels() methods. On
766 % failure, a NULL image is returned and exception describes the reason for the
769 % The format of the CloneImage method is:
771 % Image *CloneImage(const Image *image,const size_t columns,
772 % const size_t rows,const MagickBooleanType orphan,
773 % ExceptionInfo *exception)
775 % A description of each parameter follows:
777 % o image: the image.
779 % o columns: the number of columns in the cloned image.
781 % o rows: the number of rows in the cloned image.
783 % o detach: With a value other than 0, the cloned image is detached from
784 % its parent I/O stream.
786 % o exception: return any errors or warnings in this structure.
789 MagickExport Image *CloneImage(const Image *image,const size_t columns,
790 const size_t rows,const MagickBooleanType detach,ExceptionInfo *exception)
804 assert(image != (const Image *) NULL);
805 assert(image->signature == MagickSignature);
806 if (image->debug != MagickFalse)
807 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
808 assert(exception != (ExceptionInfo *) NULL);
809 assert(exception->signature == MagickSignature);
810 clone_image=(Image *) AcquireMagickMemory(sizeof(*clone_image));
811 if (clone_image == (Image *) NULL)
812 ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
813 (void) ResetMagickMemory(clone_image,0,sizeof(*clone_image));
814 clone_image->signature=MagickSignature;
815 clone_image->storage_class=image->storage_class;
816 clone_image->number_channels=image->number_channels;
817 clone_image->number_meta_channels=image->number_meta_channels;
818 clone_image->metacontent_extent=image->metacontent_extent;
819 clone_image->colorspace=image->colorspace;
820 clone_image->mask=image->mask;
821 clone_image->alpha_trait=image->alpha_trait;
822 clone_image->columns=image->columns;
823 clone_image->rows=image->rows;
824 clone_image->dither=image->dither;
825 if (image->colormap != (PixelInfo *) NULL)
828 Allocate and copy the image colormap.
830 clone_image->colors=image->colors;
831 length=(size_t) image->colors;
832 clone_image->colormap=(PixelInfo *) AcquireQuantumMemory(length,
833 sizeof(*clone_image->colormap));
834 if (clone_image->colormap == (PixelInfo *) NULL)
835 ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
836 (void) CopyMagickMemory(clone_image->colormap,image->colormap,length*
837 sizeof(*clone_image->colormap));
839 (void) CloneImageProfiles(clone_image,image);
840 (void) CloneImageProperties(clone_image,image);
841 (void) CloneImageArtifacts(clone_image,image);
842 GetTimerInfo(&clone_image->timer);
843 if (image->ascii85 != (void *) NULL)
844 Ascii85Initialize(clone_image);
845 clone_image->magick_columns=image->magick_columns;
846 clone_image->magick_rows=image->magick_rows;
847 clone_image->type=image->type;
848 clone_image->channel_mask=image->channel_mask;
849 clone_image->channel_map=ClonePixelChannelMap(image->channel_map);
850 (void) CopyMagickString(clone_image->magick_filename,image->magick_filename,
852 (void) CopyMagickString(clone_image->magick,image->magick,MaxTextExtent);
853 (void) CopyMagickString(clone_image->filename,image->filename,MaxTextExtent);
854 clone_image->progress_monitor=image->progress_monitor;
855 clone_image->client_data=image->client_data;
856 clone_image->reference_count=1;
857 clone_image->next=image->next;
858 clone_image->previous=image->previous;
859 clone_image->list=NewImageList();
860 if (detach == MagickFalse)
861 clone_image->blob=ReferenceBlob(image->blob);
864 clone_image->next=NewImageList();
865 clone_image->previous=NewImageList();
866 clone_image->blob=CloneBlobInfo((BlobInfo *) NULL);
868 clone_image->ping=image->ping;
869 clone_image->debug=IsEventLogging();
870 clone_image->semaphore=AllocateSemaphoreInfo();
871 if ((columns == 0) && (rows == 0))
873 if (image->montage != (char *) NULL)
874 (void) CloneString(&clone_image->montage,image->montage);
875 if (image->directory != (char *) NULL)
876 (void) CloneString(&clone_image->directory,image->directory);
877 clone_image->cache=ReferencePixelCache(image->cache);
880 scale=(double) columns/(double) image->columns;
881 clone_image->page.width=(size_t) floor(scale*image->page.width+0.5);
882 clone_image->page.x=(ssize_t) ceil(scale*image->page.x-0.5);
883 clone_image->tile_offset.x=(ssize_t) ceil(scale*image->tile_offset.x-0.5);
884 scale=(double) rows/(double) image->rows;
885 clone_image->page.height=(size_t) floor(scale*image->page.height+0.5);
886 clone_image->page.y=(ssize_t) ceil(scale*image->page.y-0.5);
887 clone_image->tile_offset.y=(ssize_t) ceil(scale*image->tile_offset.y-0.5);
888 clone_image->columns=columns;
889 clone_image->rows=rows;
890 clone_image->cache=ClonePixelCache(image->cache);
895 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
899 % C l o n e I m a g e I n f o %
903 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
905 % CloneImageInfo() makes a copy of the given image info structure. If
906 % NULL is specified, a new image info structure is created initialized to
909 % The format of the CloneImageInfo method is:
911 % ImageInfo *CloneImageInfo(const ImageInfo *image_info)
913 % A description of each parameter follows:
915 % o image_info: the image info.
918 MagickExport ImageInfo *CloneImageInfo(const ImageInfo *image_info)
923 clone_info=AcquireImageInfo();
924 if (image_info == (ImageInfo *) NULL)
926 clone_info->compression=image_info->compression;
927 clone_info->temporary=image_info->temporary;
928 clone_info->adjoin=image_info->adjoin;
929 clone_info->antialias=image_info->antialias;
930 clone_info->scene=image_info->scene;
931 clone_info->number_scenes=image_info->number_scenes;
932 clone_info->depth=image_info->depth;
933 (void) CloneString(&clone_info->size,image_info->size);
934 (void) CloneString(&clone_info->extract,image_info->extract);
935 (void) CloneString(&clone_info->scenes,image_info->scenes);
936 (void) CloneString(&clone_info->page,image_info->page);
937 clone_info->interlace=image_info->interlace;
938 clone_info->endian=image_info->endian;
939 clone_info->units=image_info->units;
940 clone_info->quality=image_info->quality;
941 (void) CloneString(&clone_info->sampling_factor,image_info->sampling_factor);
942 (void) CloneString(&clone_info->server_name,image_info->server_name);
943 (void) CloneString(&clone_info->font,image_info->font);
944 (void) CloneString(&clone_info->texture,image_info->texture);
945 (void) CloneString(&clone_info->density,image_info->density);
946 clone_info->pointsize=image_info->pointsize;
947 clone_info->fuzz=image_info->fuzz;
948 clone_info->background_color=image_info->background_color;
949 clone_info->border_color=image_info->border_color;
950 clone_info->matte_color=image_info->matte_color;
951 clone_info->transparent_color=image_info->transparent_color;
952 clone_info->dither=image_info->dither;
953 clone_info->monochrome=image_info->monochrome;
954 clone_info->colorspace=image_info->colorspace;
955 clone_info->type=image_info->type;
956 clone_info->orientation=image_info->orientation;
957 clone_info->preview_type=image_info->preview_type;
958 clone_info->group=image_info->group;
959 clone_info->ping=image_info->ping;
960 clone_info->verbose=image_info->verbose;
961 (void) CloneString(&clone_info->view,image_info->view);
962 clone_info->progress_monitor=image_info->progress_monitor;
963 clone_info->client_data=image_info->client_data;
964 clone_info->cache=image_info->cache;
965 if (image_info->cache != (void *) NULL)
966 clone_info->cache=ReferencePixelCache(image_info->cache);
967 if (image_info->profile != (void *) NULL)
968 clone_info->profile=(void *) CloneStringInfo((StringInfo *)
969 image_info->profile);
970 SetImageInfoFile(clone_info,image_info->file);
971 SetImageInfoBlob(clone_info,image_info->blob,image_info->length);
972 clone_info->stream=image_info->stream;
973 (void) CopyMagickString(clone_info->magick,image_info->magick,MaxTextExtent);
974 (void) CopyMagickString(clone_info->unique,image_info->unique,MaxTextExtent);
975 (void) CopyMagickString(clone_info->zero,image_info->zero,MaxTextExtent);
976 (void) CopyMagickString(clone_info->filename,image_info->filename,
978 clone_info->channel=image_info->channel;
979 (void) CloneImageOptions(clone_info,image_info);
980 clone_info->debug=IsEventLogging();
981 clone_info->signature=image_info->signature;
986 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
990 % D e s t r o y I m a g e %
994 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
996 % DestroyImage() dereferences an image, deallocating memory associated with
997 % the image if the reference count becomes zero.
999 % The format of the DestroyImage method is:
1001 % Image *DestroyImage(Image *image)
1003 % A description of each parameter follows:
1005 % o image: the image.
1008 MagickExport Image *DestroyImage(Image *image)
1016 assert(image != (Image *) NULL);
1017 assert(image->signature == MagickSignature);
1018 if (image->debug != MagickFalse)
1019 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1020 destroy=MagickFalse;
1021 LockSemaphoreInfo(image->semaphore);
1022 image->reference_count--;
1023 if (image->reference_count == 0)
1025 UnlockSemaphoreInfo(image->semaphore);
1026 if (destroy == MagickFalse)
1027 return((Image *) NULL);
1031 DestroyImagePixels(image);
1032 image->channel_map=DestroyPixelChannelMap(image->channel_map);
1033 if (image->montage != (char *) NULL)
1034 image->montage=DestroyString(image->montage);
1035 if (image->directory != (char *) NULL)
1036 image->directory=DestroyString(image->directory);
1037 if (image->colormap != (PixelInfo *) NULL)
1038 image->colormap=(PixelInfo *) RelinquishMagickMemory(image->colormap);
1039 if (image->geometry != (char *) NULL)
1040 image->geometry=DestroyString(image->geometry);
1041 DestroyImageProfiles(image);
1042 DestroyImageProperties(image);
1043 DestroyImageArtifacts(image);
1044 if (image->ascii85 != (Ascii85Info*) NULL)
1045 image->ascii85=(Ascii85Info *) RelinquishMagickMemory(image->ascii85);
1047 if (image->semaphore != (SemaphoreInfo *) NULL)
1048 DestroySemaphoreInfo(&image->semaphore);
1049 image->signature=(~MagickSignature);
1050 image=(Image *) RelinquishMagickMemory(image);
1055 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1059 % D e s t r o y I m a g e I n f o %
1063 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1065 % DestroyImageInfo() deallocates memory associated with an ImageInfo
1068 % The format of the DestroyImageInfo method is:
1070 % ImageInfo *DestroyImageInfo(ImageInfo *image_info)
1072 % A description of each parameter follows:
1074 % o image_info: the image info.
1077 MagickExport ImageInfo *DestroyImageInfo(ImageInfo *image_info)
1079 assert(image_info != (ImageInfo *) NULL);
1080 assert(image_info->signature == MagickSignature);
1081 if (image_info->debug != MagickFalse)
1082 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
1083 image_info->filename);
1084 if (image_info->size != (char *) NULL)
1085 image_info->size=DestroyString(image_info->size);
1086 if (image_info->extract != (char *) NULL)
1087 image_info->extract=DestroyString(image_info->extract);
1088 if (image_info->scenes != (char *) NULL)
1089 image_info->scenes=DestroyString(image_info->scenes);
1090 if (image_info->page != (char *) NULL)
1091 image_info->page=DestroyString(image_info->page);
1092 if (image_info->sampling_factor != (char *) NULL)
1093 image_info->sampling_factor=DestroyString(
1094 image_info->sampling_factor);
1095 if (image_info->server_name != (char *) NULL)
1096 image_info->server_name=DestroyString(
1097 image_info->server_name);
1098 if (image_info->font != (char *) NULL)
1099 image_info->font=DestroyString(image_info->font);
1100 if (image_info->texture != (char *) NULL)
1101 image_info->texture=DestroyString(image_info->texture);
1102 if (image_info->density != (char *) NULL)
1103 image_info->density=DestroyString(image_info->density);
1104 if (image_info->view != (char *) NULL)
1105 image_info->view=DestroyString(image_info->view);
1106 if (image_info->cache != (void *) NULL)
1107 image_info->cache=DestroyPixelCache(image_info->cache);
1108 if (image_info->profile != (StringInfo *) NULL)
1109 image_info->profile=(void *) DestroyStringInfo((StringInfo *)
1110 image_info->profile);
1111 DestroyImageOptions(image_info);
1112 image_info->signature=(~MagickSignature);
1113 image_info=(ImageInfo *) RelinquishMagickMemory(image_info);
1118 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1122 + D i s a s s o c i a t e I m a g e S t r e a m %
1126 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1128 % DisassociateImageStream() disassociates the image stream.
1130 % The format of the DisassociateImageStream method is:
1132 % MagickBooleanType DisassociateImageStream(const Image *image)
1134 % A description of each parameter follows:
1136 % o image: the image.
1139 MagickExport void DisassociateImageStream(Image *image)
1141 assert(image != (const Image *) NULL);
1142 assert(image->signature == MagickSignature);
1143 if (image->debug != MagickFalse)
1144 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1145 (void) DetachBlob(image->blob);
1149 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1153 % G e t I m a g e A l p h a C h a n n e l %
1157 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1159 % GetImageAlphaChannel() returns MagickFalse if the image alpha channel is
1160 % not activated. That is, the image is RGB rather than RGBA or CMYK rather
1163 % The format of the GetImageAlphaChannel method is:
1165 % MagickBooleanType GetImageAlphaChannel(const Image *image)
1167 % A description of each parameter follows:
1169 % o image: the image.
1172 MagickExport MagickBooleanType GetImageAlphaChannel(const Image *image)
1174 assert(image != (const Image *) NULL);
1175 if (image->debug != MagickFalse)
1176 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1177 assert(image->signature == MagickSignature);
1178 return(image->alpha_trait == BlendPixelTrait ? MagickTrue : MagickFalse);
1182 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1186 % G e t I m a g e I n f o %
1190 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1192 % GetImageInfo() initializes image_info to default values.
1194 % The format of the GetImageInfo method is:
1196 % void GetImageInfo(ImageInfo *image_info)
1198 % A description of each parameter follows:
1200 % o image_info: the image info.
1203 MagickExport void GetImageInfo(ImageInfo *image_info)
1209 File and image dimension members.
1211 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1212 assert(image_info != (ImageInfo *) NULL);
1213 (void) ResetMagickMemory(image_info,0,sizeof(*image_info));
1214 image_info->adjoin=MagickTrue;
1215 image_info->interlace=NoInterlace;
1216 image_info->channel=DefaultChannels;
1217 image_info->quality=UndefinedCompressionQuality;
1218 image_info->antialias=MagickTrue;
1219 image_info->dither=MagickTrue;
1220 image_info->synchronize=IsStringTrue(GetEnvironmentValue(
1221 "MAGICK_SYNCHRONIZE"));
1222 exception=AcquireExceptionInfo();
1223 (void) QueryColorCompliance(BackgroundColor,AllCompliance,
1224 &image_info->background_color,exception);
1225 (void) QueryColorCompliance(BorderColor,AllCompliance,
1226 &image_info->border_color,exception);
1227 (void) QueryColorCompliance(MatteColor,AllCompliance,&image_info->matte_color,
1229 (void) QueryColorCompliance(TransparentColor,AllCompliance,
1230 &image_info->transparent_color,exception);
1231 exception=DestroyExceptionInfo(exception);
1232 image_info->debug=IsEventLogging();
1233 image_info->signature=MagickSignature;
1237 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1241 % G e t I m a g e I n f o F i l e %
1245 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1247 % GetImageInfoFile() returns the image info file member.
1249 % The format of the GetImageInfoFile method is:
1251 % FILE *GetImageInfoFile(const ImageInfo *image_info)
1253 % A description of each parameter follows:
1255 % o image_info: the image info.
1258 MagickExport FILE *GetImageInfoFile(const ImageInfo *image_info)
1260 return(image_info->file);
1264 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1268 % G e t I m a g e M a s k %
1272 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1274 % GetImageMask() returns the mask associated with the image.
1276 % The format of the GetImageMask method is:
1278 % Image *GetImageMask(const Image *image,ExceptionInfo *exception)
1280 % A description of each parameter follows:
1282 % o image: the image.
1285 MagickExport Image *GetImageMask(const Image *image,ExceptionInfo *exception)
1303 assert(image != (Image *) NULL);
1304 if (image->debug != MagickFalse)
1305 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1306 assert(image->signature == MagickSignature);
1307 mask_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception);
1308 if (mask_image == (Image *) NULL)
1309 return((Image *) NULL);
1311 (void) SetImageColorspace(mask_image,GRAYColorspace,exception);
1312 mask_image->mask=MagickFalse;
1313 image_view=AcquireVirtualCacheView(image,exception);
1314 mask_view=AcquireAuthenticCacheView(mask_image,exception);
1315 for (y=0; y < (ssize_t) image->rows; y++)
1317 register const Quantum
1326 if (status == MagickFalse)
1328 p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
1329 q=GetCacheViewAuthenticPixels(mask_view,0,y,mask_image->columns,1,
1331 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
1336 for (x=0; x < (ssize_t) image->columns; x++)
1338 SetPixelGray(mask_image,GetPixelMask(image,p),q);
1339 p+=GetPixelChannels(image);
1340 q+=GetPixelChannels(mask_image);
1342 if (SyncCacheViewAuthenticPixels(mask_view,exception) == MagickFalse)
1345 mask_view=DestroyCacheView(mask_view);
1346 image_view=DestroyCacheView(image_view);
1351 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1355 + G e t I m a g e R e f e r e n c e C o u n t %
1359 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1361 % GetImageReferenceCount() returns the image reference count.
1363 % The format of the GetReferenceCount method is:
1365 % ssize_t GetImageReferenceCount(Image *image)
1367 % A description of each parameter follows:
1369 % o image: the image.
1372 MagickExport ssize_t GetImageReferenceCount(Image *image)
1377 assert(image != (Image *) NULL);
1378 assert(image->signature == MagickSignature);
1379 if (image->debug != MagickFalse)
1380 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1381 LockSemaphoreInfo(image->semaphore);
1382 reference_count=image->reference_count;
1383 UnlockSemaphoreInfo(image->semaphore);
1384 return(reference_count);
1388 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1392 % 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 %
1396 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1398 % GetImageVirtualPixelMethod() gets the "virtual pixels" method for the
1399 % image. A virtual pixel is any pixel access that is outside the boundaries
1400 % of the image cache.
1402 % The format of the GetImageVirtualPixelMethod() method is:
1404 % VirtualPixelMethod GetImageVirtualPixelMethod(const Image *image)
1406 % A description of each parameter follows:
1408 % o image: the image.
1411 MagickExport VirtualPixelMethod GetImageVirtualPixelMethod(const Image *image)
1413 assert(image != (Image *) NULL);
1414 assert(image->signature == MagickSignature);
1415 if (image->debug != MagickFalse)
1416 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1417 return(GetPixelCacheVirtualMethod(image));
1421 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1425 % I n t e r p r e t I m a g e F i l e n a m e %
1429 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1431 % InterpretImageFilename() interprets embedded characters in an image filename.
1432 % The filename length is returned.
1434 % The format of the InterpretImageFilename method is:
1436 % size_t InterpretImageFilename(const ImageInfo *image_info,Image *image,
1437 % const char *format,int value,char *filename,ExceptionInfo *exception)
1439 % A description of each parameter follows.
1441 % o image_info: the image info..
1443 % o image: the image.
1445 % o format: A filename describing the format to use to write the numeric
1446 % argument. Only the first numeric format identifier is replaced.
1448 % o value: Numeric value to substitute into format filename.
1450 % o filename: return the formatted filename in this character buffer.
1452 % o exception: return any errors or warnings in this structure.
1455 MagickExport size_t InterpretImageFilename(const ImageInfo *image_info,
1456 Image *image,const char *format,int value,char *filename,
1457 ExceptionInfo *exception)
1474 canonical=MagickFalse;
1476 (void) CopyMagickString(filename,format,MaxTextExtent);
1477 for (p=strchr(format,'%'); p != (char *) NULL; p=strchr(p+1,'%'))
1490 value=(ssize_t) strtol(q,&q,10);
1502 (void) FormatLocaleString(filename+(p-format),(size_t) (MaxTextExtent-
1503 (p-format)),p,value);
1505 (void) ConcatenateMagickString(filename,q,MaxTextExtent);
1506 canonical=MagickTrue;
1515 pattern[MaxTextExtent];
1532 /* FUTURE: Compare update with code from InterpretImageProperties()
1533 Note that a 'filename:' property should not need depth recursion.
1535 if (strchr(p,']') == (char *) NULL)
1539 for (i=0; (i < (MaxTextExtent-1L)) && (*r != '\0'); i++)
1550 if (LocaleNCompare(pattern,"filename:",9) != 0)
1552 value=(const char *) NULL;
1554 // FUTURE: remove this code. -- Anthony 29 Arpil 2012
1555 // Removed as GetMagickProperty() will will never match a "filename:"
1556 // string as this is not a 'known' image property.
1558 if ((image_info != (const ImageInfo *) NULL) &&
1559 (image != (const Image *) NULL))
1560 value=GetMagickProperty(image_info,image,pattern,exception);
1563 if (image != (Image *) NULL)
1564 value=GetImageProperty(image,pattern,exception);
1565 if ((value == (const char *) NULL) &&
1566 (image != (Image *) NULL))
1567 value=GetImageArtifact(image,pattern);
1568 if ((value == (const char *) NULL) &&
1569 (image_info != (ImageInfo *) NULL))
1570 value=GetImageOption(image_info,pattern);
1571 if (value == (const char *) NULL)
1576 (void) CopyMagickString(filename+(p-format-length),value,(size_t)
1577 (MaxTextExtent-(p-format-length)));
1578 length+=strlen(pattern)-1;
1580 (void) ConcatenateMagickString(filename,r+1,MaxTextExtent);
1581 canonical=MagickTrue;
1591 for (q=filename; *q != '\0'; q++)
1592 if ((*q == '%') && (*(q+1) == '%'))
1594 (void) CopyMagickString(q,q+1,(size_t) (MaxTextExtent-(q-filename)));
1595 canonical=MagickTrue;
1597 if (canonical == MagickFalse)
1598 (void) CopyMagickString(filename,format,MaxTextExtent);
1599 return(strlen(filename));
1603 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1607 % I s H i g h D y n a m i c R a n g e I m a g e %
1611 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1613 % IsHighDynamicRangeImage() returns MagickTrue if any pixel component is
1614 % non-integer or exceeds the bounds of the quantum depth (e.g. for Q16
1617 % The format of the IsHighDynamicRangeImage method is:
1619 % MagickBooleanType IsHighDynamicRangeImage(const Image *image,
1620 % ExceptionInfo *exception)
1622 % A description of each parameter follows:
1624 % o image: the image.
1626 % o exception: return any errors or warnings in this structure.
1629 MagickExport MagickBooleanType IsHighDynamicRangeImage(const Image *image,
1630 ExceptionInfo *exception)
1632 #if !defined(MAGICKCORE_HDRI_SUPPORT)
1635 return(MagickFalse);
1646 assert(image != (Image *) NULL);
1647 assert(image->signature == MagickSignature);
1648 if (image->debug != MagickFalse)
1649 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1651 image_view=AcquireVirtualCacheView(image,exception);
1652 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1653 #pragma omp parallel for schedule(static,4) shared(status) \
1654 dynamic_number_threads(image,image->columns,image->rows,1)
1656 for (y=0; y < (ssize_t) image->rows; y++)
1658 register const Quantum
1664 if (status == MagickFalse)
1666 p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
1667 if (p == (const Quantum *) NULL)
1672 for (x=0; x < (ssize_t) image->columns; x++)
1677 if (GetPixelMask(image,p) != 0)
1679 p+=GetPixelChannels(image);
1682 for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
1690 traits=GetPixelChannelTraits(image,(PixelChannel) i);
1691 if (traits == UndefinedPixelTrait)
1693 pixel=(double) p[i];
1694 if ((pixel < 0.0) || (pixel > QuantumRange) ||
1695 (pixel != (QuantumAny) pixel))
1698 p+=GetPixelChannels(image);
1699 if (i < (ssize_t) GetPixelChannels(image))
1702 if (x < (ssize_t) image->columns)
1705 image_view=DestroyCacheView(image_view);
1706 return(status != MagickFalse ? MagickFalse : MagickTrue);
1711 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1715 % I s I m a g e O b j e c t %
1719 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1721 % IsImageObject() returns MagickTrue if the image sequence contains a valid
1722 % set of image objects.
1724 % The format of the IsImageObject method is:
1726 % MagickBooleanType IsImageObject(const Image *image)
1728 % A description of each parameter follows:
1730 % o image: the image.
1733 MagickExport MagickBooleanType IsImageObject(const Image *image)
1735 register const Image
1738 assert(image != (Image *) NULL);
1739 if (image->debug != MagickFalse)
1740 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1741 for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
1742 if (p->signature != MagickSignature)
1743 return(MagickFalse);
1748 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1752 % I s T a i n t I m a g e %
1756 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1758 % IsTaintImage() returns MagickTrue any pixel in the image has been altered
1759 % since it was first constituted.
1761 % The format of the IsTaintImage method is:
1763 % MagickBooleanType IsTaintImage(const Image *image)
1765 % A description of each parameter follows:
1767 % o image: the image.
1770 MagickExport MagickBooleanType IsTaintImage(const Image *image)
1773 magick[MaxTextExtent],
1774 filename[MaxTextExtent];
1776 register const Image
1779 assert(image != (Image *) NULL);
1780 if (image->debug != MagickFalse)
1781 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1782 assert(image->signature == MagickSignature);
1783 (void) CopyMagickString(magick,image->magick,MaxTextExtent);
1784 (void) CopyMagickString(filename,image->filename,MaxTextExtent);
1785 for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
1787 if (p->taint != MagickFalse)
1789 if (LocaleCompare(p->magick,magick) != 0)
1791 if (LocaleCompare(p->filename,filename) != 0)
1794 return(MagickFalse);
1798 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1802 % M o d i f y I m a g e %
1806 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1808 % ModifyImage() ensures that there is only a single reference to the image
1809 % to be modified, updating the provided image pointer to point to a clone of
1810 % the original image if necessary.
1812 % The format of the ModifyImage method is:
1814 % MagickBooleanType ModifyImage(Image *image,ExceptionInfo *exception)
1816 % A description of each parameter follows:
1818 % o image: the image.
1820 % o exception: return any errors or warnings in this structure.
1823 MagickExport MagickBooleanType ModifyImage(Image **image,
1824 ExceptionInfo *exception)
1829 assert(image != (Image **) NULL);
1830 assert(*image != (Image *) NULL);
1831 assert((*image)->signature == MagickSignature);
1832 if ((*image)->debug != MagickFalse)
1833 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",(*image)->filename);
1834 if (GetImageReferenceCount(*image) <= 1)
1836 clone_image=CloneImage(*image,0,0,MagickTrue,exception);
1837 LockSemaphoreInfo((*image)->semaphore);
1838 (*image)->reference_count--;
1839 UnlockSemaphoreInfo((*image)->semaphore);
1845 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1849 % N e w M a g i c k I m a g e %
1853 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1855 % NewMagickImage() creates a blank image canvas of the specified size and
1858 % The format of the NewMagickImage method is:
1860 % Image *NewMagickImage(const ImageInfo *image_info,
1861 % const size_t width,const size_t height,const PixelInfo *background,
1862 % ExceptionInfo *exception)
1864 % A description of each parameter follows:
1866 % o image: the image.
1868 % o width: the image width.
1870 % o height: the image height.
1872 % o background: the image color.
1874 % o exception: return any errors or warnings in this structure.
1877 MagickExport Image *NewMagickImage(const ImageInfo *image_info,
1878 const size_t width,const size_t height,const PixelInfo *background,
1879 ExceptionInfo *exception)
1893 assert(image_info != (const ImageInfo *) NULL);
1894 if (image_info->debug != MagickFalse)
1895 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1896 assert(image_info->signature == MagickSignature);
1897 assert(background != (const PixelInfo *) NULL);
1898 image=AcquireImage(image_info,exception);
1899 image->columns=width;
1901 image->colorspace=background->colorspace;
1902 image->alpha_trait=background->alpha_trait;
1903 image->fuzz=background->fuzz;
1904 image->depth=background->depth;
1906 image_view=AcquireAuthenticCacheView(image,exception);
1907 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1908 #pragma omp parallel for schedule(static,4) shared(status) \
1909 dynamic_number_threads(image,image->columns,image->rows,1)
1911 for (y=0; y < (ssize_t) image->rows; y++)
1919 if (status == MagickFalse)
1921 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
1922 if (q == (Quantum *) NULL)
1927 for (x=0; x < (ssize_t) image->columns; x++)
1929 SetPixelInfoPixel(image,background,q);
1930 q+=GetPixelChannels(image);
1932 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
1935 image_view=DestroyCacheView(image_view);
1936 if (status == MagickFalse)
1937 image=DestroyImage(image);
1942 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1946 % R e f e r e n c e I m a g e %
1950 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1952 % ReferenceImage() increments the reference count associated with an image
1953 % returning a pointer to the image.
1955 % The format of the ReferenceImage method is:
1957 % Image *ReferenceImage(Image *image)
1959 % A description of each parameter follows:
1961 % o image: the image.
1964 MagickExport Image *ReferenceImage(Image *image)
1966 assert(image != (Image *) NULL);
1967 if (image->debug != MagickFalse)
1968 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
1969 assert(image->signature == MagickSignature);
1970 LockSemaphoreInfo(image->semaphore);
1971 image->reference_count++;
1972 UnlockSemaphoreInfo(image->semaphore);
1977 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1981 % R e s e t I m a g e P a g e %
1985 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1987 % ResetImagePage() resets the image page canvas and position.
1989 % The format of the ResetImagePage method is:
1991 % MagickBooleanType ResetImagePage(Image *image,const char *page)
1993 % A description of each parameter follows:
1995 % o image: the image.
1997 % o page: the relative page specification.
2000 MagickExport MagickBooleanType ResetImagePage(Image *image,const char *page)
2008 assert(image != (Image *) NULL);
2009 assert(image->signature == MagickSignature);
2010 if (image->debug != MagickFalse)
2011 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2012 flags=ParseAbsoluteGeometry(page,&geometry);
2013 if ((flags & WidthValue) != 0)
2015 if ((flags & HeightValue) == 0)
2016 geometry.height=geometry.width;
2017 image->page.width=geometry.width;
2018 image->page.height=geometry.height;
2020 if ((flags & AspectValue) != 0)
2022 if ((flags & XValue) != 0)
2023 image->page.x+=geometry.x;
2024 if ((flags & YValue) != 0)
2025 image->page.y+=geometry.y;
2029 if ((flags & XValue) != 0)
2031 image->page.x=geometry.x;
2032 if ((image->page.width == 0) && (geometry.x > 0))
2033 image->page.width=image->columns+geometry.x;
2035 if ((flags & YValue) != 0)
2037 image->page.y=geometry.y;
2038 if ((image->page.height == 0) && (geometry.y > 0))
2039 image->page.height=image->rows+geometry.y;
2046 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2050 % S e t I m a g e A l p h a C h a n n e l %
2054 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2056 % SetImageAlphaChannel() activates, deactivates, resets, or sets the alpha
2059 % The format of the SetImageAlphaChannel method is:
2061 % MagickBooleanType SetImageAlphaChannel(Image *image,
2062 % const AlphaChannelOption alpha_type,ExceptionInfo *exception)
2064 % A description of each parameter follows:
2066 % o image: the image.
2068 % o alpha_type: The alpha channel type: ActivateAlphaChannel,
2069 % CopyAlphaChannel, DeactivateAlphaChannel, ExtractAlphaChannel,
2070 % OpaqueAlphaChannel, SetAlphaChannel, ShapeAlphaChannel, and
2071 % TransparentAlphaChannel.
2073 % o exception: return any errors or warnings in this structure.
2077 static inline void FlattenPixelInfo(const Image *image,const PixelInfo *p,
2078 const double alpha,const Quantum *q,const double beta,
2090 Compose pixel p over pixel q with the given alpha.
2092 Sa=QuantumScale*alpha;
2093 Da=QuantumScale*beta,
2094 gamma=Sa*(-Da)+Sa+Da;
2095 gamma=PerceptibleReciprocal(gamma);
2096 for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
2104 channel=GetPixelChannelChannel(image,i);
2105 traits=GetPixelChannelTraits(image,channel);
2106 if (traits == UndefinedPixelTrait)
2110 case RedPixelChannel:
2112 composite[i]=ClampToQuantum(gamma*MagickOver_((double) q[i],beta,
2113 (double) p->red,alpha));
2116 case GreenPixelChannel:
2118 composite[i]=ClampToQuantum(gamma*MagickOver_((double) q[i],beta,
2119 (double) p->green,alpha));
2122 case BluePixelChannel:
2124 composite[i]=ClampToQuantum(gamma*MagickOver_((double) q[i],beta,
2125 (double) p->blue,alpha));
2128 case BlackPixelChannel:
2130 composite[i]=ClampToQuantum(gamma*MagickOver_((double) q[i],beta,
2131 (double) p->black,alpha));
2134 case AlphaPixelChannel:
2136 composite[i]=ClampToQuantum(QuantumRange*(Sa*(-Da)+Sa+Da));
2145 MagickExport MagickBooleanType SetImageAlphaChannel(Image *image,
2146 const AlphaChannelOption alpha_type,ExceptionInfo *exception)
2151 assert(image != (Image *) NULL);
2152 if (image->debug != MagickFalse)
2153 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2154 assert(image->signature == MagickSignature);
2158 case ActivateAlphaChannel:
2160 image->alpha_trait=BlendPixelTrait;
2163 case BackgroundAlphaChannel:
2172 Set transparent pixels to background color.
2174 if (image->alpha_trait != BlendPixelTrait)
2176 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
2178 image_view=AcquireAuthenticCacheView(image,exception);
2179 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2180 #pragma omp parallel for schedule(static,4) shared(status) \
2181 dynamic_number_threads(image,image->columns,image->rows,1)
2183 for (y=0; y < (ssize_t) image->rows; y++)
2191 if (status == MagickFalse)
2193 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
2195 if (q == (Quantum *) NULL)
2200 for (x=0; x < (ssize_t) image->columns; x++)
2202 if (GetPixelAlpha(image,q) == TransparentAlpha)
2203 SetPixelInfoPixel(image,&image->background_color,q);
2204 q+=GetPixelChannels(image);
2206 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2209 image_view=DestroyCacheView(image_view);
2212 case CopyAlphaChannel:
2213 case ShapeAlphaChannel:
2216 Copy pixel intensity to the alpha channel.
2218 status=CompositeImage(image,image,IntensityCompositeOp,MagickTrue,0,0,
2220 if (alpha_type == ShapeAlphaChannel)
2221 (void) LevelImageColors(image,&image->background_color,
2222 &image->background_color,MagickTrue,exception);
2225 case DeactivateAlphaChannel:
2227 image->alpha_trait=CopyPixelTrait;
2230 case ExtractAlphaChannel:
2232 status=CompositeImage(image,image,AlphaCompositeOp,MagickTrue,0,0,
2234 image->alpha_trait=UndefinedPixelTrait;
2237 case OpaqueAlphaChannel:
2239 status=SetImageAlpha(image,OpaqueAlpha,exception);
2242 case RemoveAlphaChannel:
2251 Remove transparency.
2253 if (image->alpha_trait != BlendPixelTrait)
2255 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
2257 image_view=AcquireAuthenticCacheView(image,exception);
2258 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2259 #pragma omp parallel for schedule(static,4) shared(status) \
2260 dynamic_number_threads(image,image->columns,image->rows,1)
2262 for (y=0; y < (ssize_t) image->rows; y++)
2270 if (status == MagickFalse)
2272 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
2274 if (q == (Quantum *) NULL)
2279 for (x=0; x < (ssize_t) image->columns; x++)
2281 FlattenPixelInfo(image,&image->background_color,
2282 image->background_color.alpha,q,(double)
2283 GetPixelAlpha(image,q),q);
2284 q+=GetPixelChannels(image);
2286 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2289 image_view=DestroyCacheView(image_view);
2290 image->alpha_trait=image->background_color.alpha_trait;
2293 case SetAlphaChannel:
2295 if (image->alpha_trait != BlendPixelTrait)
2296 status=SetImageAlpha(image,OpaqueAlpha,exception);
2299 case TransparentAlphaChannel:
2301 status=SetImageAlpha(image,TransparentAlpha,exception);
2304 case UndefinedAlphaChannel:
2307 if (status == MagickFalse)
2309 return(SyncImagePixelCache(image,exception));
2313 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2317 % S e t I m a g e B a c k g r o u n d C o l o r %
2321 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2323 % SetImageBackgroundColor() initializes the image pixels to the image
2324 % background color. The background color is defined by the background_color
2325 % member of the image structure.
2327 % The format of the SetImage method is:
2329 % MagickBooleanType SetImageBackgroundColor(Image *image,
2330 % ExceptionInfo *exception)
2332 % A description of each parameter follows:
2334 % o image: the image.
2336 % o exception: return any errors or warnings in this structure.
2339 MagickExport MagickBooleanType SetImageBackgroundColor(Image *image,
2340 ExceptionInfo *exception)
2351 assert(image != (Image *) NULL);
2352 if (image->debug != MagickFalse)
2353 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2354 assert(image->signature == MagickSignature);
2355 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
2356 return(MagickFalse);
2357 if ((IsPixelInfoGray(&image->background_color) == MagickFalse) &&
2358 (IsGrayColorspace(image->colorspace) != MagickFalse))
2359 (void) TransformImageColorspace(image,RGBColorspace,exception);
2360 if ((image->background_color.alpha_trait == BlendPixelTrait) &&
2361 (image->alpha_trait != BlendPixelTrait))
2362 (void) SetImageAlpha(image,OpaqueAlpha,exception);
2364 Set image background color.
2367 image_view=AcquireAuthenticCacheView(image,exception);
2368 for (y=0; y < (ssize_t) image->rows; y++)
2376 if (status == MagickFalse)
2378 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2379 if (q == (Quantum *) NULL)
2384 for (x=0; x < (ssize_t) image->columns; x++)
2386 SetPixelInfoPixel(image,&image->background_color,q);
2387 q+=GetPixelChannels(image);
2389 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2392 image_view=DestroyCacheView(image_view);
2397 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2401 % S e t I m a g e C h a n n e l M a s k %
2405 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2407 % SetImageChannelMask() sets the image channel mask from the specified channel
2410 % The format of the SetImageChannelMask method is:
2412 % ChannelType SetImageChannelMask(Image *image,
2413 % const ChannelType channel_mask)
2415 % A description of each parameter follows:
2417 % o image: the image.
2419 % o channel_mask: the channel mask.
2422 MagickExport ChannelType SetImageChannelMask(Image *image,
2423 const ChannelType channel_mask)
2428 mask=image->channel_mask;
2429 image->channel_mask=channel_mask;
2430 SetPixelChannelMask(image,channel_mask);
2435 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2439 % S e t I m a g e C o l o r %
2443 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2445 % SetImageColor() set the entire image canvas to the specified color.
2447 % The format of the SetImageColor method is:
2449 % MagickBooleanType SetImageColor(Image *image,const PixelInfo *color,
2450 % ExeptionInfo *exception)
2452 % A description of each parameter follows:
2454 % o image: the image.
2456 % o background: the image color.
2458 % o exception: return any errors or warnings in this structure.
2461 MagickExport MagickBooleanType SetImageColor(Image *image,
2462 const PixelInfo *color,ExceptionInfo *exception)
2473 assert(image != (Image *) NULL);
2474 if (image->debug != MagickFalse)
2475 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
2476 assert(image->signature == MagickSignature);
2477 assert(color != (const PixelInfo *) NULL);
2478 image->colorspace=color->colorspace;
2479 image->alpha_trait=color->alpha_trait;
2480 image->fuzz=color->fuzz;
2481 image->depth=color->depth;
2483 image_view=AcquireAuthenticCacheView(image,exception);
2484 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2485 #pragma omp parallel for schedule(static,4) shared(status) \
2486 dynamic_number_threads(image,image->columns,image->rows,1)
2488 for (y=0; y < (ssize_t) image->rows; y++)
2496 if (status == MagickFalse)
2498 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2499 if (q == (Quantum *) NULL)
2504 for (x=0; x < (ssize_t) image->columns; x++)
2506 SetPixelInfoPixel(image,color,q);
2507 q+=GetPixelChannels(image);
2509 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2512 image_view=DestroyCacheView(image_view);
2517 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2521 % S e t I m a g e S t o r a g e C l a s s %
2525 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2527 % SetImageStorageClass() sets the image class: DirectClass for true color
2528 % images or PseudoClass for colormapped images.
2530 % The format of the SetImageStorageClass method is:
2532 % MagickBooleanType SetImageStorageClass(Image *image,
2533 % const ClassType storage_class,ExceptionInfo *exception)
2535 % A description of each parameter follows:
2537 % o image: the image.
2539 % o storage_class: The image class.
2541 % o exception: return any errors or warnings in this structure.
2544 MagickExport MagickBooleanType SetImageStorageClass(Image *image,
2545 const ClassType storage_class,ExceptionInfo *exception)
2547 image->storage_class=storage_class;
2548 return(SyncImagePixelCache(image,exception));
2552 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2556 % S e t I m a g e E x t e n t %
2560 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2562 % SetImageExtent() sets the image size (i.e. columns & rows).
2564 % The format of the SetImageExtent method is:
2566 % MagickBooleanType SetImageExtent(Image *image,const size_t columns,
2567 % const size_t rows,ExceptionInfo *exception)
2569 % A description of each parameter follows:
2571 % o image: the image.
2573 % o columns: The image width in pixels.
2575 % o rows: The image height in pixels.
2577 % o exception: return any errors or warnings in this structure.
2580 MagickExport MagickBooleanType SetImageExtent(Image *image,const size_t columns,
2581 const size_t rows,ExceptionInfo *exception)
2583 if ((columns == 0) || (rows == 0))
2584 return(MagickFalse);
2585 image->columns=columns;
2587 return(SyncImagePixelCache(image,exception));
2591 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2595 + S e t I m a g e I n f o %
2599 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2601 % SetImageInfo() initializes the 'magick' field of the ImageInfo structure.
2602 % It is set to a type of image format based on the prefix or suffix of the
2603 % filename. For example, 'ps:image' returns PS indicating a Postscript image.
2604 % JPEG is returned for this filename: 'image.jpg'. The filename prefix has
2605 % precendence over the suffix. Use an optional index enclosed in brackets
2606 % after a file name to specify a desired scene of a multi-resolution image
2607 % format like Photo CD (e.g. img0001.pcd[4]). A True (non-zero) return value
2608 % indicates success.
2610 % The format of the SetImageInfo method is:
2612 % MagickBooleanType SetImageInfo(ImageInfo *image_info,
2613 % const unsigned int frames,ExceptionInfo *exception)
2615 % A description of each parameter follows:
2617 % o image_info: the image info.
2619 % o frames: the number of images you intend to write.
2621 % o exception: return any errors or warnings in this structure.
2624 MagickExport MagickBooleanType SetImageInfo(ImageInfo *image_info,
2625 const unsigned int frames,ExceptionInfo *exception)
2628 extension[MaxTextExtent],
2629 filename[MaxTextExtent],
2630 magic[MaxTextExtent],
2632 subimage[MaxTextExtent];
2656 magick[2*MaxTextExtent];
2659 Look for 'image.format' in filename.
2661 assert(image_info != (ImageInfo *) NULL);
2662 assert(image_info->signature == MagickSignature);
2663 if (image_info->debug != MagickFalse)
2664 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
2665 image_info->filename);
2669 GetPathComponent(image_info->filename,SubimagePath,subimage);
2670 if (*subimage != '\0')
2673 Look for scene specification (e.g. img0001.pcd[4]).
2675 if (IsSceneGeometry(subimage,MagickFalse) == MagickFalse)
2677 if (IsGeometry(subimage) != MagickFalse)
2678 (void) CloneString(&image_info->extract,subimage);
2686 (void) CloneString(&image_info->scenes,subimage);
2687 image_info->scene=StringToUnsignedLong(image_info->scenes);
2688 image_info->number_scenes=image_info->scene;
2689 p=image_info->scenes;
2690 for (q=(char *) image_info->scenes; *q != '\0'; p++)
2692 while ((isspace((int) ((unsigned char) *p)) != 0) ||
2695 first=(size_t) strtol(p,&q,10);
2697 while (isspace((int) ((unsigned char) *q)) != 0)
2700 last=(size_t) strtol(q+1,&q,10);
2703 if (first < image_info->scene)
2704 image_info->scene=first;
2705 if (last > image_info->number_scenes)
2706 image_info->number_scenes=last;
2709 image_info->number_scenes-=image_info->scene-1;
2714 GetPathComponent(image_info->filename,ExtensionPath,extension);
2715 #if defined(MAGICKCORE_ZLIB_DELEGATE)
2716 if (*extension != '\0')
2717 if ((LocaleCompare(extension,"gz") == 0) ||
2718 (LocaleCompare(extension,"Z") == 0) ||
2719 (LocaleCompare(extension,"svgz") == 0) ||
2720 (LocaleCompare(extension,"wmz") == 0))
2723 path[MaxTextExtent];
2725 (void) CopyMagickString(path,image_info->filename,MaxTextExtent);
2726 path[strlen(path)-strlen(extension)-1]='\0';
2727 GetPathComponent(path,ExtensionPath,extension);
2730 #if defined(MAGICKCORE_BZLIB_DELEGATE)
2731 if (*extension != '\0')
2732 if (LocaleCompare(extension,"bz2") == 0)
2735 path[MaxTextExtent];
2737 (void) CopyMagickString(path,image_info->filename,MaxTextExtent);
2738 path[strlen(path)-strlen(extension)-1]='\0';
2739 GetPathComponent(path,ExtensionPath,extension);
2742 image_info->affirm=MagickFalse;
2743 sans_exception=AcquireExceptionInfo();
2744 if (*extension != '\0')
2753 *format_type_formats[] =
2776 User specified image format.
2778 (void) CopyMagickString(magic,extension,MaxTextExtent);
2781 Look for explicit image formats.
2783 format_type=UndefinedFormatType;
2785 while ((format_type == UndefinedFormatType) &&
2786 (format_type_formats[i] != (char *) NULL))
2788 if ((*magic == *format_type_formats[i]) &&
2789 (LocaleCompare(magic,format_type_formats[i]) == 0))
2790 format_type=ExplicitFormatType;
2793 magick_info=GetMagickInfo(magic,sans_exception);
2794 if ((magick_info != (const MagickInfo *) NULL) &&
2795 (magick_info->format_type != UndefinedFormatType))
2796 format_type=magick_info->format_type;
2797 if (format_type == UndefinedFormatType)
2798 (void) CopyMagickString(image_info->magick,magic,MaxTextExtent);
2800 if (format_type == ExplicitFormatType)
2802 image_info->affirm=MagickTrue;
2803 (void) CopyMagickString(image_info->magick,magic,MaxTextExtent);
2805 if (LocaleCompare(magic,"RGB") == 0)
2806 image_info->affirm=MagickFalse; /* maybe SGI disguised as RGB */
2809 Look for explicit 'format:image' in filename.
2812 GetPathComponent(image_info->filename,MagickPath,magic);
2814 (void) CopyMagickString(magic,image_info->magick,MaxTextExtent);
2818 User specified image format.
2821 if (IsMagickConflict(magic) == MagickFalse)
2823 (void) CopyMagickString(image_info->magick,magic,MaxTextExtent);
2824 if (LocaleCompare(magic,"EPHEMERAL") != 0)
2825 image_info->affirm=MagickTrue;
2827 image_info->temporary=MagickTrue;
2830 magick_info=GetMagickInfo(magic,sans_exception);
2831 sans_exception=DestroyExceptionInfo(sans_exception);
2832 if ((magick_info == (const MagickInfo *) NULL) ||
2833 (GetMagickEndianSupport(magick_info) == MagickFalse))
2834 image_info->endian=UndefinedEndian;
2835 GetPathComponent(image_info->filename,CanonicalPath,filename);
2836 (void) CopyMagickString(image_info->filename,filename,MaxTextExtent);
2837 if ((image_info->adjoin != MagickFalse) && (frames > 1))
2840 Test for multiple image support (e.g. image%02d.png).
2842 (void) InterpretImageFilename(image_info,(Image *) NULL,
2843 image_info->filename,(int) image_info->scene,filename,exception);
2844 if ((LocaleCompare(filename,image_info->filename) != 0) &&
2845 (strchr(filename,'%') == (char *) NULL))
2846 image_info->adjoin=MagickFalse;
2848 if ((image_info->adjoin != MagickFalse) && (frames > 0))
2851 Some image formats do not support multiple frames per file.
2853 magick_info=GetMagickInfo(magic,exception);
2854 if (magick_info != (const MagickInfo *) NULL)
2855 if (GetMagickAdjoin(magick_info) == MagickFalse)
2856 image_info->adjoin=MagickFalse;
2858 if (image_info->affirm != MagickFalse)
2863 Determine the image format from the first few bytes of the file.
2865 image=AcquireImage(image_info,exception);
2866 (void) CopyMagickString(image->filename,image_info->filename,
2868 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
2869 if (status == MagickFalse)
2871 image=DestroyImage(image);
2872 return(MagickFalse);
2874 if ((IsBlobSeekable(image) == MagickFalse) ||
2875 (IsBlobExempt(image) != MagickFalse))
2878 Copy standard input or pipe to temporary file.
2881 status=ImageToFile(image,filename,exception);
2882 (void) CloseBlob(image);
2883 if (status == MagickFalse)
2885 image=DestroyImage(image);
2886 return(MagickFalse);
2888 SetImageInfoFile(image_info,(FILE *) NULL);
2889 (void) CopyMagickString(image->filename,filename,MaxTextExtent);
2890 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
2891 if (status == MagickFalse)
2893 image=DestroyImage(image);
2894 return(MagickFalse);
2896 (void) CopyMagickString(image_info->filename,filename,MaxTextExtent);
2897 image_info->temporary=MagickTrue;
2899 (void) ResetMagickMemory(magick,0,sizeof(magick));
2900 count=ReadBlob(image,2*MaxTextExtent,magick);
2901 (void) CloseBlob(image);
2902 image=DestroyImage(image);
2904 Check magic.xml configuration file.
2906 sans_exception=AcquireExceptionInfo();
2907 magic_info=GetMagicInfo(magick,(size_t) count,sans_exception);
2908 if ((magic_info != (const MagicInfo *) NULL) &&
2909 (GetMagicName(magic_info) != (char *) NULL))
2911 (void) CopyMagickString(image_info->magick,GetMagicName(magic_info),
2913 magick_info=GetMagickInfo(image_info->magick,sans_exception);
2914 if ((magick_info == (const MagickInfo *) NULL) ||
2915 (GetMagickEndianSupport(magick_info) == MagickFalse))
2916 image_info->endian=UndefinedEndian;
2917 sans_exception=DestroyExceptionInfo(sans_exception);
2920 magick_info=GetMagickInfo(image_info->magick,sans_exception);
2921 if ((magick_info == (const MagickInfo *) NULL) ||
2922 (GetMagickEndianSupport(magick_info) == MagickFalse))
2923 image_info->endian=UndefinedEndian;
2924 sans_exception=DestroyExceptionInfo(sans_exception);
2930 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2934 % S e t I m a g e I n f o B l o b %
2938 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2940 % SetImageInfoBlob() sets the image info blob member.
2942 % The format of the SetImageInfoBlob method is:
2944 % void SetImageInfoBlob(ImageInfo *image_info,const void *blob,
2945 % const size_t length)
2947 % A description of each parameter follows:
2949 % o image_info: the image info.
2953 % o length: the blob length.
2956 MagickExport void SetImageInfoBlob(ImageInfo *image_info,const void *blob,
2957 const size_t length)
2959 assert(image_info != (ImageInfo *) NULL);
2960 assert(image_info->signature == MagickSignature);
2961 if (image_info->debug != MagickFalse)
2962 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
2963 image_info->filename);
2964 image_info->blob=(void *) blob;
2965 image_info->length=length;
2969 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2973 % S e t I m a g e I n f o F i l e %
2977 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2979 % SetImageInfoFile() sets the image info file member.
2981 % The format of the SetImageInfoFile method is:
2983 % void SetImageInfoFile(ImageInfo *image_info,FILE *file)
2985 % A description of each parameter follows:
2987 % o image_info: the image info.
2992 MagickExport void SetImageInfoFile(ImageInfo *image_info,FILE *file)
2994 assert(image_info != (ImageInfo *) NULL);
2995 assert(image_info->signature == MagickSignature);
2996 if (image_info->debug != MagickFalse)
2997 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
2998 image_info->filename);
2999 image_info->file=file;
3003 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3007 % S e t I m a g e M a s k %
3011 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3013 % SetImageMask() associates a mask with the image. The mask must be the same
3014 % dimensions as the image.
3016 % The format of the SetImageMask method is:
3018 % MagickBooleanType SetImageMask(Image *image,const Image *mask,
3019 % ExceptionInfo *exception)
3021 % A description of each parameter follows:
3023 % o image: the image.
3025 % o mask: the image mask.
3027 % o exception: return any errors or warnings in this structure.
3030 MagickExport MagickBooleanType SetImageMask(Image *image,const Image *mask,
3031 ExceptionInfo *exception)
3046 assert(image != (Image *) NULL);
3047 if (image->debug != MagickFalse)
3048 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3049 assert(image->signature == MagickSignature);
3050 if (mask == (const Image *) NULL)
3052 image->mask=MagickFalse;
3056 image->mask=MagickTrue;
3057 mask_view=AcquireVirtualCacheView(mask,exception);
3058 image_view=AcquireAuthenticCacheView(image,exception);
3059 for (y=0; y < (ssize_t) image->rows; y++)
3061 register const Quantum
3070 if (status == MagickFalse)
3072 p=GetCacheViewVirtualPixels(mask_view,0,y,mask->columns,1,exception);
3073 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
3074 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
3079 for (x=0; x < (ssize_t) image->columns; x++)
3081 SetPixelMask(image,GetPixelGray(mask,p),q);
3082 p+=GetPixelChannels(mask);
3083 q+=GetPixelChannels(image);
3085 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
3088 mask_view=DestroyCacheView(mask_view);
3089 image_view=DestroyCacheView(image_view);
3094 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3098 % S e t I m a g e A l p h a %
3102 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3104 % SetImageAlpha() sets the alpha levels of the image.
3106 % The format of the SetImageAlpha method is:
3108 % MagickBooleanType SetImageAlpha(Image *image,const Quantum alpha,
3109 % ExceptionInfo *exception)
3111 % A description of each parameter follows:
3113 % o image: the image.
3115 % o Alpha: the level of transparency: 0 is fully opaque and QuantumRange is
3116 % fully transparent.
3119 MagickExport MagickBooleanType SetImageAlpha(Image *image,const Quantum alpha,
3120 ExceptionInfo *exception)
3131 assert(image != (Image *) NULL);
3132 if (image->debug != MagickFalse)
3133 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3134 assert(image->signature == MagickSignature);
3135 image->alpha_trait=BlendPixelTrait;
3137 image_view=AcquireAuthenticCacheView(image,exception);
3138 #if defined(MAGICKCORE_OPENMP_SUPPORT)
3139 #pragma omp parallel for schedule(static,4) shared(status) \
3140 dynamic_number_threads(image,image->columns,image->rows,1)
3142 for (y=0; y < (ssize_t) image->rows; y++)
3150 if (status == MagickFalse)
3152 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
3153 if (q == (Quantum *) NULL)
3158 for (x=0; x < (ssize_t) image->columns; x++)
3160 SetPixelAlpha(image,alpha,q);
3161 q+=GetPixelChannels(image);
3163 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
3166 image_view=DestroyCacheView(image_view);
3171 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3175 % 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 %
3179 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3181 % SetImageVirtualPixelMethod() sets the "virtual pixels" method for the
3182 % image and returns the previous setting. A virtual pixel is any pixel access
3183 % that is outside the boundaries of the image cache.
3185 % The format of the SetImageVirtualPixelMethod() method is:
3187 % VirtualPixelMethod SetImageVirtualPixelMethod(Image *image,
3188 % const VirtualPixelMethod virtual_pixel_method,ExceptionInfo *exception)
3190 % A description of each parameter follows:
3192 % o image: the image.
3194 % o virtual_pixel_method: choose the type of virtual pixel.
3196 % o exception: return any errors or warnings in this structure.
3199 MagickExport VirtualPixelMethod SetImageVirtualPixelMethod(Image *image,
3200 const VirtualPixelMethod virtual_pixel_method,ExceptionInfo *exception)
3202 assert(image != (const Image *) NULL);
3203 assert(image->signature == MagickSignature);
3204 if (image->debug != MagickFalse)
3205 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
3206 return(SetPixelCacheVirtualMethod(image,virtual_pixel_method,exception));
3210 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3214 % S m u s h I m a g e s %
3218 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3220 % SmushImages() takes all images from the current image pointer to the end
3221 % of the image list and smushes them to each other top-to-bottom if the
3222 % stack parameter is true, otherwise left-to-right.
3224 % The current gravity setting now effects how the image is justified in the
3227 % The format of the SmushImages method is:
3229 % Image *SmushImages(const Image *images,const MagickBooleanType stack,
3230 % ExceptionInfo *exception)
3232 % A description of each parameter follows:
3234 % o images: the image sequence.
3236 % o stack: A value other than 0 stacks the images top-to-bottom.
3238 % o offset: minimum distance in pixels between images.
3240 % o exception: return any errors or warnings in this structure.
3244 static ssize_t SmushXGap(const Image *smush_image,const Image *images,
3245 const ssize_t offset,ExceptionInfo *exception)
3259 register const Quantum
3272 if (images->previous == (Image *) NULL)
3275 SetGeometry(smush_image,&right_geometry);
3276 GravityAdjustGeometry(right_image->columns,right_image->rows,
3277 right_image->gravity,&right_geometry);
3278 left_image=images->previous;
3279 SetGeometry(smush_image,&left_geometry);
3280 GravityAdjustGeometry(left_image->columns,left_image->rows,
3281 left_image->gravity,&left_geometry);
3282 gap=right_image->columns;
3283 left_view=AcquireVirtualCacheView(left_image,exception);
3284 right_view=AcquireVirtualCacheView(right_image,exception);
3285 for (y=0; y < (ssize_t) smush_image->rows; y++)
3287 for (x=(ssize_t) left_image->columns-1; x > 0; x--)
3289 p=GetCacheViewVirtualPixels(left_view,x,left_geometry.y+y,1,1,exception);
3290 if ((p == (const Quantum *) NULL) ||
3291 (GetPixelAlpha(left_image,p) != TransparentAlpha) ||
3292 ((left_image->columns-x-1) >= gap))
3295 i=(ssize_t) left_image->columns-x-1;
3296 for (x=0; x < (ssize_t) right_image->columns; x++)
3298 p=GetCacheViewVirtualPixels(right_view,x,right_geometry.y+y,1,1,
3300 if ((p == (const Quantum *) NULL) ||
3301 (GetPixelAlpha(right_image,p) != TransparentAlpha) ||
3302 ((x+i) >= (ssize_t) gap))
3305 if ((x+i) < (ssize_t) gap)
3308 right_view=DestroyCacheView(right_view);
3309 left_view=DestroyCacheView(left_view);
3310 if (y < (ssize_t) smush_image->rows)
3312 return((ssize_t) gap-offset);
3315 static ssize_t SmushYGap(const Image *smush_image,const Image *images,
3316 const ssize_t offset,ExceptionInfo *exception)
3330 register const Quantum
3343 if (images->previous == (Image *) NULL)
3345 bottom_image=images;
3346 SetGeometry(smush_image,&bottom_geometry);
3347 GravityAdjustGeometry(bottom_image->columns,bottom_image->rows,
3348 bottom_image->gravity,&bottom_geometry);
3349 top_image=images->previous;
3350 SetGeometry(smush_image,&top_geometry);
3351 GravityAdjustGeometry(top_image->columns,top_image->rows,top_image->gravity,
3353 gap=bottom_image->rows;
3354 top_view=AcquireVirtualCacheView(top_image,exception);
3355 bottom_view=AcquireVirtualCacheView(bottom_image,exception);
3356 for (x=0; x < (ssize_t) smush_image->columns; x++)
3358 for (y=(ssize_t) top_image->rows-1; y > 0; y--)
3360 p=GetCacheViewVirtualPixels(top_view,top_geometry.x+x,y,1,1,exception);
3361 if ((p == (const Quantum *) NULL) ||
3362 (GetPixelAlpha(top_image,p) != TransparentAlpha) ||
3363 ((top_image->rows-y-1) >= gap))
3366 i=(ssize_t) top_image->rows-y-1;
3367 for (y=0; y < (ssize_t) bottom_image->rows; y++)
3369 p=GetCacheViewVirtualPixels(bottom_view,bottom_geometry.x+x,y,1,1,
3371 if ((p == (const Quantum *) NULL) ||
3372 (GetPixelAlpha(bottom_image,p) != TransparentAlpha) ||
3373 ((y+i) >= (ssize_t) gap))
3376 if ((y+i) < (ssize_t) gap)
3379 bottom_view=DestroyCacheView(bottom_view);
3380 top_view=DestroyCacheView(top_view);
3381 if (x < (ssize_t) smush_image->columns)
3383 return((ssize_t) gap-offset);
3386 MagickExport Image *SmushImages(const Image *images,
3387 const MagickBooleanType stack,const ssize_t offset,ExceptionInfo *exception)
3389 #define SmushImageTag "Smush/Image"
3410 register const Image
3423 Compute maximum area of smushed area.
3425 assert(images != (Image *) NULL);
3426 assert(images->signature == MagickSignature);
3427 if (images->debug != MagickFalse)
3428 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
3429 assert(exception != (ExceptionInfo *) NULL);
3430 assert(exception->signature == MagickSignature);
3432 alpha_trait=image->alpha_trait;
3434 width=image->columns;
3436 next=GetNextImageInList(image);
3437 for ( ; next != (Image *) NULL; next=GetNextImageInList(next))
3439 if (next->alpha_trait == BlendPixelTrait)
3440 alpha_trait=BlendPixelTrait;
3442 if (stack != MagickFalse)
3444 if (next->columns > width)
3445 width=next->columns;
3447 if (next->previous != (Image *) NULL)
3451 width+=next->columns;
3452 if (next->previous != (Image *) NULL)
3454 if (next->rows > height)
3460 smush_image=CloneImage(image,width,height,MagickTrue,exception);
3461 if (smush_image == (Image *) NULL)
3462 return((Image *) NULL);
3463 if (SetImageStorageClass(smush_image,DirectClass,exception) == MagickFalse)
3465 smush_image=DestroyImage(smush_image);
3466 return((Image *) NULL);
3468 smush_image->alpha_trait=alpha_trait;
3469 (void) SetImageBackgroundColor(smush_image,exception);
3473 for (n=0; n < (MagickOffsetType) number_images; n++)
3475 SetGeometry(smush_image,&geometry);
3476 GravityAdjustGeometry(image->columns,image->rows,image->gravity,&geometry);
3477 if (stack != MagickFalse)
3479 x_offset-=geometry.x;
3480 y_offset-=SmushYGap(smush_image,image,offset,exception);
3484 x_offset-=SmushXGap(smush_image,image,offset,exception);
3485 y_offset-=geometry.y;
3487 status=CompositeImage(smush_image,image,OverCompositeOp,MagickTrue,x_offset,
3488 y_offset,exception);
3489 proceed=SetImageProgress(image,SmushImageTag,n,number_images);
3490 if (proceed == MagickFalse)
3492 if (stack == MagickFalse)
3494 x_offset+=(ssize_t) image->columns;
3500 y_offset+=(ssize_t) image->rows;
3502 image=GetNextImageInList(image);
3504 if (stack == MagickFalse)
3505 smush_image->columns=(size_t) x_offset;
3507 smush_image->rows=(size_t) y_offset;
3508 if (status == MagickFalse)
3509 smush_image=DestroyImage(smush_image);
3510 return(smush_image);
3514 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3518 % S t r i p I m a g e %
3522 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3524 % StripImage() strips an image of all profiles and comments.
3526 % The format of the StripImage method is:
3528 % MagickBooleanType StripImage(Image *image,ExceptionInfo *exception)
3530 % A description of each parameter follows:
3532 % o image: the image.
3534 % o exception: return any errors or warnings in this structure.
3537 MagickExport MagickBooleanType StripImage(Image *image,ExceptionInfo *exception)
3542 assert(image != (Image *) NULL);
3543 if (image->debug != MagickFalse)
3544 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3546 DestroyImageProfiles(image);
3547 (void) DeleteImageProperty(image,"comment");
3548 (void) DeleteImageProperty(image,"date:create");
3549 (void) DeleteImageProperty(image,"date:modify");
3550 status=SetImageArtifact(image,"png:include-chunk","none,trns,gama");
3555 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3559 + S y n c I m a g e %
3563 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3565 % SyncImage() initializes the red, green, and blue intensities of each pixel
3566 % as defined by the colormap index.
3568 % The format of the SyncImage method is:
3570 % MagickBooleanType SyncImage(Image *image,ExceptionInfo *exception)
3572 % A description of each parameter follows:
3574 % o image: the image.
3576 % o exception: return any errors or warnings in this structure.
3580 static inline Quantum PushColormapIndex(Image *image,const Quantum index,
3581 MagickBooleanType *range_exception)
3583 if ((size_t) index < image->colors)
3585 *range_exception=MagickTrue;
3586 return((Quantum) 0);
3589 MagickExport MagickBooleanType SyncImage(Image *image,ExceptionInfo *exception)
3601 assert(image != (Image *) NULL);
3602 if (image->debug != MagickFalse)
3603 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
3604 assert(image->signature == MagickSignature);
3605 if (image->storage_class == DirectClass)
3606 return(MagickFalse);
3607 range_exception=MagickFalse;
3609 image_view=AcquireAuthenticCacheView(image,exception);
3610 #if defined(MAGICKCORE_OPENMP_SUPPORT)
3611 #pragma omp parallel for schedule(static,4) shared(range_exception,status) \
3612 dynamic_number_threads(image,image->columns,image->rows,1)
3614 for (y=0; y < (ssize_t) image->rows; y++)
3625 if (status == MagickFalse)
3627 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
3628 if (q == (Quantum *) NULL)
3633 for (x=0; x < (ssize_t) image->columns; x++)
3635 index=PushColormapIndex(image,GetPixelIndex(image,q),&range_exception);
3636 SetPixelInfoPixel(image,image->colormap+(ssize_t) index,q);
3637 q+=GetPixelChannels(image);
3639 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
3642 image_view=DestroyCacheView(image_view);
3643 if ((image->ping == MagickFalse) && (range_exception != MagickFalse))
3644 (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError,
3645 "InvalidColormapIndex","'%s'",image->filename);
3650 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3654 % S y n c I m a g e S e t t i n g s %
3658 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3660 % SyncImageSettings() syncs any image_info global options into per-image
3663 % Note: in IMv6 free form 'options' were always mapped into 'artifacts', so
3664 % that operations and coders can find such settings. In IMv7 if a desired
3665 % per-image artifact is not set, then it will directly look for a global
3666 % option as a fallback, as such this copy is no longer needed, only the
3669 % The format of the SyncImageSettings method is:
3671 % MagickBooleanType SyncImageSettings(const ImageInfo *image_info,
3672 % Image *image,ExceptionInfo *exception)
3673 % MagickBooleanType SyncImagesSettings(const ImageInfo *image_info,
3674 % Image *image,ExceptionInfo *exception)
3676 % A description of each parameter follows:
3678 % o image_info: the image info.
3680 % o image: the image.
3682 % o exception: return any errors or warnings in this structure.
3686 MagickExport MagickBooleanType SyncImagesSettings(ImageInfo *image_info,
3687 Image *images,ExceptionInfo *exception)
3692 assert(image_info != (const ImageInfo *) NULL);
3693 assert(image_info->signature == MagickSignature);
3694 assert(images != (Image *) NULL);
3695 assert(images->signature == MagickSignature);
3696 if (images->debug != MagickFalse)
3697 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename);
3699 for ( ; image != (Image *) NULL; image=GetNextImageInList(image))
3700 (void) SyncImageSettings(image_info,image,exception);
3701 (void) DeleteImageOption(image_info,"page");
3705 MagickExport MagickBooleanType SyncImageSettings(const ImageInfo *image_info,
3706 Image *image,ExceptionInfo *exception)
3723 assert(image_info != (const ImageInfo *) NULL);
3724 assert(image_info->signature == MagickSignature);
3725 assert(image != (Image *) NULL);
3726 assert(image->signature == MagickSignature);
3727 if (image->debug != MagickFalse)
3728 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
3729 option=GetImageOption(image_info,"background");
3730 if (option != (const char *) NULL)
3731 (void) QueryColorCompliance(option,AllCompliance,&image->background_color,
3733 option=GetImageOption(image_info,"black-point-compensation");
3734 if (option != (const char *) NULL)
3735 image->black_point_compensation=(MagickBooleanType) ParseCommandOption(
3736 MagickBooleanOptions,MagickFalse,option);
3737 option=GetImageOption(image_info,"blue-primary");
3738 if (option != (const char *) NULL)
3740 flags=ParseGeometry(option,&geometry_info);
3741 image->chromaticity.blue_primary.x=geometry_info.rho;
3742 image->chromaticity.blue_primary.y=geometry_info.sigma;
3743 if ((flags & SigmaValue) == 0)
3744 image->chromaticity.blue_primary.y=image->chromaticity.blue_primary.x;
3746 option=GetImageOption(image_info,"bordercolor");
3747 if (option != (const char *) NULL)
3748 (void) QueryColorCompliance(option,AllCompliance,&image->border_color,
3750 option=GetImageOption(image_info,"channel");
3751 if (option != (const char *) NULL)
3752 (void) SetPixelChannelMask(image,(ChannelType)
3753 ParseChannelOption(option));
3754 /* FUTURE: do not sync compose to per-image compose setting here */
3755 option=GetImageOption(image_info,"compose");
3756 if (option != (const char *) NULL)
3757 image->compose=(CompositeOperator) ParseCommandOption(MagickComposeOptions,
3758 MagickFalse,option);
3760 option=GetImageOption(image_info,"compress");
3761 if (option != (const char *) NULL)
3762 image->compression=(CompressionType) ParseCommandOption(
3763 MagickCompressOptions,MagickFalse,option);
3764 option=GetImageOption(image_info,"debug");
3765 if (option != (const char *) NULL)
3766 image->debug=(MagickBooleanType) ParseCommandOption(MagickBooleanOptions,
3767 MagickFalse,option);
3768 option=GetImageOption(image_info,"density");
3769 if (option != (const char *) NULL)
3774 flags=ParseGeometry(option,&geometry_info);
3775 image->resolution.x=geometry_info.rho;
3776 image->resolution.y=geometry_info.sigma;
3777 if ((flags & SigmaValue) == 0)
3778 image->resolution.y=image->resolution.x;
3780 option=GetImageOption(image_info,"depth");
3781 if (option != (const char *) NULL)
3782 image->depth=StringToUnsignedLong(option);
3783 option=GetImageOption(image_info,"endian");
3784 if (option != (const char *) NULL)
3785 image->endian=(EndianType) ParseCommandOption(MagickEndianOptions,
3786 MagickFalse,option);
3787 option=GetImageOption(image_info,"filter");
3788 if (option != (const char *) NULL)
3789 image->filter=(FilterTypes) ParseCommandOption(MagickFilterOptions,
3790 MagickFalse,option);
3791 option=GetImageOption(image_info,"fuzz");
3792 if (option != (const char *) NULL)
3793 image->fuzz=StringToDoubleInterval(option,(double) QuantumRange+1.0);
3794 option=GetImageOption(image_info,"gravity");
3795 if (option != (const char *) NULL)
3796 image->gravity=(GravityType) ParseCommandOption(MagickGravityOptions,
3797 MagickFalse,option);
3798 option=GetImageOption(image_info,"green-primary");
3799 if (option != (const char *) NULL)
3801 flags=ParseGeometry(option,&geometry_info);
3802 image->chromaticity.green_primary.x=geometry_info.rho;
3803 image->chromaticity.green_primary.y=geometry_info.sigma;
3804 if ((flags & SigmaValue) == 0)
3805 image->chromaticity.green_primary.y=image->chromaticity.green_primary.x;
3807 option=GetImageOption(image_info,"intent");
3808 if (option != (const char *) NULL)
3809 image->rendering_intent=(RenderingIntent) ParseCommandOption(
3810 MagickIntentOptions,MagickFalse,option);
3811 option=GetImageOption(image_info,"interlace");
3812 if (option != (const char *) NULL)
3813 image->interlace=(InterlaceType) ParseCommandOption(MagickInterlaceOptions,
3814 MagickFalse,option);
3815 option=GetImageOption(image_info,"interpolate");
3816 if (option != (const char *) NULL)
3817 image->interpolate=(PixelInterpolateMethod) ParseCommandOption(
3818 MagickInterpolateOptions,MagickFalse,option);
3819 option=GetImageOption(image_info,"loop");
3820 if (option != (const char *) NULL)
3821 image->iterations=StringToUnsignedLong(option);
3822 option=GetImageOption(image_info,"mattecolor");
3823 if (option != (const char *) NULL)
3824 (void) QueryColorCompliance(option,AllCompliance,&image->matte_color,
3826 option=GetImageOption(image_info,"orient");
3827 if (option != (const char *) NULL)
3828 image->orientation=(OrientationType) ParseCommandOption(
3829 MagickOrientationOptions,MagickFalse,option);
3830 option=GetImageOption(image_info,"page");
3831 if (option != (const char *) NULL)
3836 geometry=GetPageGeometry(option);
3837 flags=ParseAbsoluteGeometry(geometry,&image->page);
3838 geometry=DestroyString(geometry);
3840 option=GetImageOption(image_info,"quality");
3841 if (option != (const char *) NULL)
3842 image->quality=StringToUnsignedLong(option);
3843 option=GetImageOption(image_info,"red-primary");
3844 if (option != (const char *) NULL)
3846 flags=ParseGeometry(option,&geometry_info);
3847 image->chromaticity.red_primary.x=geometry_info.rho;
3848 image->chromaticity.red_primary.y=geometry_info.sigma;
3849 if ((flags & SigmaValue) == 0)
3850 image->chromaticity.red_primary.y=image->chromaticity.red_primary.x;
3852 if (image_info->quality != UndefinedCompressionQuality)
3853 image->quality=image_info->quality;
3854 option=GetImageOption(image_info,"scene");
3855 if (option != (const char *) NULL)
3856 image->scene=StringToUnsignedLong(option);
3857 option=GetImageOption(image_info,"taint");
3858 if (option != (const char *) NULL)
3859 image->taint=(MagickBooleanType) ParseCommandOption(MagickBooleanOptions,
3860 MagickFalse,option);
3861 option=GetImageOption(image_info,"tile-offset");
3862 if (option != (const char *) NULL)
3867 geometry=GetPageGeometry(option);
3868 flags=ParseAbsoluteGeometry(geometry,&image->tile_offset);
3869 geometry=DestroyString(geometry);
3871 option=GetImageOption(image_info,"transparent-color");
3872 if (option != (const char *) NULL)
3873 (void) QueryColorCompliance(option,AllCompliance,&image->transparent_color,
3875 option=GetImageOption(image_info,"type");
3876 if (option != (const char *) NULL)
3877 image->type=(ImageType) ParseCommandOption(MagickTypeOptions,MagickFalse,
3879 option=GetImageOption(image_info,"units");
3880 units=image_info->units;
3881 if (option != (const char *) NULL)
3882 units=(ResolutionType) ParseCommandOption(MagickResolutionOptions,
3883 MagickFalse,option);
3884 if (units != UndefinedResolution)
3886 if (image->units != units)
3887 switch (image->units)
3889 case PixelsPerInchResolution:
3891 if (units == PixelsPerCentimeterResolution)
3893 image->resolution.x/=2.54;
3894 image->resolution.y/=2.54;
3898 case PixelsPerCentimeterResolution:
3900 if (units == PixelsPerInchResolution)
3902 image->resolution.x=(double) ((size_t) (100.0*2.54*
3903 image->resolution.x+0.5))/100.0;
3904 image->resolution.y=(double) ((size_t) (100.0*2.54*
3905 image->resolution.y+0.5))/100.0;
3914 option=GetImageOption(image_info,"virtual-pixel");
3915 if (option != (const char *) NULL)
3916 (void) SetImageVirtualPixelMethod(image,(VirtualPixelMethod)
3917 ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,option),
3919 option=GetImageOption(image_info,"white-point");
3920 if (option != (const char *) NULL)
3922 flags=ParseGeometry(option,&geometry_info);
3923 image->chromaticity.white_point.x=geometry_info.rho;
3924 image->chromaticity.white_point.y=geometry_info.sigma;
3925 if ((flags & SigmaValue) == 0)
3926 image->chromaticity.white_point.y=image->chromaticity.white_point.x;
3928 ResetImageOptionIterator(image_info);
3931 /* IMv6: Copy freeform global options into per-image artifacts, so
3932 * various operations and coders can access them.
3934 * This has a problem, as per-image artefacts may have been set in
3935 * parenthesis, but may not be unset when parenthesis ends.
3938 property[MaxTextExtent];
3943 for (option=GetNextImageOption(image_info); option != (const char *) NULL; )
3945 value=GetImageOption(image_info,option);
3946 if (value != (const char *) NULL)
3948 (void) FormatLocaleString(property,MaxTextExtent,"%s",option);
3949 (void) SetImageArtifact(image,property,value);
3951 option=GetNextImageOption(image_info);
3955 /* IMv7: pointer to allow the lookup of pre-image artefact will fallback to
3956 a global option setting/define. This saves a lot of duplication of
3957 global options into per-image artifacts, while ensuring only specifically
3958 set per-image artifacts are preverved when parenthesis ends.
3960 This pointer is never explictally freed, as it is only used as a back
3961 reference, not as the main pointer to the image_info structure. Images
3962 being removed from a image_info image list (or yet to be added to such),
3963 should have this pointer reset to NULL.
3965 image->image_info = image_info;