2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 % QQQ U U AAA N N TTTTT U U M M %
7 % Q Q U U A A NN N T U U MM MM %
8 % Q Q U U AAAAA N N N T U U M M M %
9 % Q QQ U U A A N NN T U U M M %
10 % QQQQ UUU A A N N T UUU M M %
12 % MagicCore Methods to Acquire / Destroy Quantum Pixels %
19 % Copyright 1999-2008 ImageMagick Studio LLC, a non-profit organization %
20 % dedicated to making software imaging solutions freely available. %
22 % You may not use this file except in compliance with the License. You may %
23 % obtain a copy of the License at %
25 % http://www.imagemagick.org/script/license.php %
27 % Unless required by applicable law or agreed to in writing, software %
28 % distributed under the License is distributed on an "AS IS" BASIS, %
29 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
30 % See the License for the specific language governing permissions and %
31 % limitations under the License. %
33 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
41 #include "MagickCore/studio.h"
42 #include "MagickCore/attribute.h"
43 #include "MagickCore/blob.h"
44 #include "MagickCore/blob-private.h"
45 #include "MagickCore/color-private.h"
46 #include "MagickCore/exception.h"
47 #include "MagickCore/exception-private.h"
48 #include "MagickCore/cache.h"
49 #include "MagickCore/constitute.h"
50 #include "MagickCore/delegate.h"
51 #include "MagickCore/geometry.h"
52 #include "MagickCore/list.h"
53 #include "MagickCore/magick.h"
54 #include "MagickCore/memory_.h"
55 #include "MagickCore/monitor.h"
56 #include "MagickCore/option.h"
57 #include "MagickCore/pixel.h"
58 #include "MagickCore/pixel-accessor.h"
59 #include "MagickCore/property.h"
60 #include "MagickCore/quantum.h"
61 #include "MagickCore/quantum-private.h"
62 #include "MagickCore/resource_.h"
63 #include "MagickCore/semaphore.h"
64 #include "MagickCore/statistic.h"
65 #include "MagickCore/stream.h"
66 #include "MagickCore/string_.h"
67 #include "MagickCore/string-private.h"
68 #include "MagickCore/thread-private.h"
69 #include "MagickCore/utility.h"
74 #define QuantumSignature 0xab
80 DestroyQuantumPixels(QuantumInfo *);
83 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
87 % A c q u i r e Q u a n t u m I n f o %
91 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
93 % AcquireQuantumInfo() allocates the QuantumInfo structure.
95 % The format of the AcquireQuantumInfo method is:
97 % QuantumInfo *AcquireQuantumInfo(const ImageInfo *image_info,Image *image)
99 % A description of each parameter follows:
101 % o image_info: the image info.
103 % o image: the image.
107 static inline size_t MagickMax(const size_t x,
115 MagickExport QuantumInfo *AcquireQuantumInfo(const ImageInfo *image_info,
124 quantum_info=(QuantumInfo *) AcquireMagickMemory(sizeof(*quantum_info));
125 if (quantum_info == (QuantumInfo *) NULL)
126 ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
127 quantum_info->signature=MagickSignature;
128 GetQuantumInfo(image_info,quantum_info);
129 if (image == (const Image *) NULL)
130 return(quantum_info);
131 status=SetQuantumDepth(image,quantum_info,image->depth);
132 if (status == MagickFalse)
133 quantum_info=DestroyQuantumInfo(quantum_info);
134 return(quantum_info);
138 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
142 + A c q u i r e Q u a n t u m P i x e l s %
146 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
148 % AcquireQuantumPixels() allocates the unsigned char structure.
150 % The format of the AcquireQuantumPixels method is:
152 % MagickBooleanType AcquireQuantumPixels(QuantumInfo *quantum_info,
153 % const size_t extent)
155 % A description of each parameter follows:
157 % o quantum_info: the quantum info.
159 % o extent: the quantum info.
162 static MagickBooleanType AcquireQuantumPixels(QuantumInfo *quantum_info,
168 assert(quantum_info != (QuantumInfo *) NULL);
169 assert(quantum_info->signature == MagickSignature);
170 quantum_info->number_threads=GetOpenMPMaximumThreads();
171 quantum_info->pixels=(unsigned char **) AcquireQuantumMemory(
172 quantum_info->number_threads,sizeof(*quantum_info->pixels));
173 if (quantum_info->pixels == (unsigned char **) NULL)
175 quantum_info->extent=extent;
176 (void) ResetMagickMemory(quantum_info->pixels,0,
177 quantum_info->number_threads*sizeof(*quantum_info->pixels));
178 for (i=0; i < (ssize_t) quantum_info->number_threads; i++)
180 quantum_info->pixels[i]=(unsigned char *) AcquireQuantumMemory(extent+1,
181 sizeof(**quantum_info->pixels));
182 if (quantum_info->pixels[i] == (unsigned char *) NULL)
184 (void) ResetMagickMemory(quantum_info->pixels[i],0,(extent+1)*
185 sizeof(**quantum_info->pixels));
186 quantum_info->pixels[i][extent]=QuantumSignature;
192 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
196 % D e s t r o y Q u a n t u m I n f o %
200 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
202 % DestroyQuantumInfo() deallocates memory associated with the QuantumInfo
205 % The format of the DestroyQuantumInfo method is:
207 % QuantumInfo *DestroyQuantumInfo(QuantumInfo *quantum_info)
209 % A description of each parameter follows:
211 % o quantum_info: the quantum info.
214 MagickExport QuantumInfo *DestroyQuantumInfo(QuantumInfo *quantum_info)
216 assert(quantum_info != (QuantumInfo *) NULL);
217 assert(quantum_info->signature == MagickSignature);
218 if (quantum_info->pixels != (unsigned char **) NULL)
219 DestroyQuantumPixels(quantum_info);
220 if (quantum_info->semaphore != (SemaphoreInfo *) NULL)
221 DestroySemaphoreInfo(&quantum_info->semaphore);
222 quantum_info->signature=(~MagickSignature);
223 quantum_info=(QuantumInfo *) RelinquishMagickMemory(quantum_info);
224 return(quantum_info);
228 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
232 + D e s t r o y Q u a n t u m P i x e l s %
236 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
238 % DestroyQuantumPixels() destroys the quantum pixels.
240 % The format of the DestroyQuantumPixels() method is:
242 % void DestroyQuantumPixels(QuantumInfo *quantum_info)
244 % A description of each parameter follows:
246 % o quantum_info: the quantum info.
249 static void DestroyQuantumPixels(QuantumInfo *quantum_info)
257 assert(quantum_info != (QuantumInfo *) NULL);
258 assert(quantum_info->signature == MagickSignature);
259 assert(quantum_info->pixels != (unsigned char **) NULL);
260 extent=(ssize_t) quantum_info->extent;
261 for (i=0; i < (ssize_t) quantum_info->number_threads; i++)
262 if (quantum_info->pixels[i] != (unsigned char *) NULL)
265 Did we overrun our quantum buffer?
267 assert(quantum_info->pixels[i][extent] == QuantumSignature);
268 quantum_info->pixels[i]=(unsigned char *) RelinquishMagickMemory(
269 quantum_info->pixels[i]);
271 quantum_info->pixels=(unsigned char **) RelinquishMagickMemory(
272 quantum_info->pixels);
276 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
280 % G e t Q u a n t u m E x t e n t %
284 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
286 % GetQuantumExtent() returns the quantum pixel buffer extent.
288 % The format of the GetQuantumExtent method is:
290 % size_t GetQuantumExtent(Image *image,const QuantumInfo *quantum_info,
291 % const QuantumType quantum_type)
293 % A description of each parameter follows:
295 % o image: the image.
297 % o quantum_info: the quantum info.
299 % o quantum_type: Declare which pixel components to transfer (red, green,
300 % blue, opacity, RGB, or RGBA).
303 MagickExport size_t GetQuantumExtent(const Image *image,
304 const QuantumInfo *quantum_info,const QuantumType quantum_type)
309 assert(quantum_info != (QuantumInfo *) NULL);
310 assert(quantum_info->signature == MagickSignature);
312 switch (quantum_type)
314 case GrayAlphaQuantum: packet_size=2; break;
315 case IndexAlphaQuantum: packet_size=2; break;
316 case RGBQuantum: packet_size=3; break;
317 case BGRQuantum: packet_size=3; break;
318 case RGBAQuantum: packet_size=4; break;
319 case RGBOQuantum: packet_size=4; break;
320 case BGRAQuantum: packet_size=4; break;
321 case CMYKQuantum: packet_size=4; break;
322 case CMYKAQuantum: packet_size=5; break;
325 if (quantum_info->pack == MagickFalse)
326 return((size_t) (packet_size*image->columns*((quantum_info->depth+7)/8)));
327 return((size_t) ((packet_size*image->columns*quantum_info->depth+7)/8));
331 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
335 % G e t Q u a n t u m I n f o %
339 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
341 % GetQuantumInfo() initializes the QuantumInfo structure to default values.
343 % The format of the GetQuantumInfo method is:
345 % GetQuantumInfo(const ImageInfo *image_info,QuantumInfo *quantum_info)
347 % A description of each parameter follows:
349 % o image_info: the image info.
351 % o quantum_info: the quantum info.
354 MagickExport void GetQuantumInfo(const ImageInfo *image_info,
355 QuantumInfo *quantum_info)
360 assert(quantum_info != (QuantumInfo *) NULL);
361 (void) ResetMagickMemory(quantum_info,0,sizeof(*quantum_info));
362 quantum_info->quantum=8;
363 quantum_info->maximum=1.0;
364 quantum_info->scale=QuantumRange;
365 quantum_info->pack=MagickTrue;
366 quantum_info->semaphore=AllocateSemaphoreInfo();
367 quantum_info->signature=MagickSignature;
368 if (image_info == (const ImageInfo *) NULL)
370 option=GetImageOption(image_info,"quantum:format");
371 if (option != (char *) NULL)
372 quantum_info->format=(QuantumFormatType) ParseCommandOption(
373 MagickQuantumFormatOptions,MagickFalse,option);
374 option=GetImageOption(image_info,"quantum:minimum");
375 if (option != (char *) NULL)
376 quantum_info->minimum=InterpretLocaleValue(option,(char **) NULL);
377 option=GetImageOption(image_info,"quantum:maximum");
378 if (option != (char *) NULL)
379 quantum_info->maximum=InterpretLocaleValue(option,(char **) NULL);
380 if ((quantum_info->minimum == 0.0) && (quantum_info->maximum == 0.0))
381 quantum_info->scale=0.0;
383 if (quantum_info->minimum == quantum_info->maximum)
385 quantum_info->scale=(MagickRealType) QuantumRange/quantum_info->minimum;
386 quantum_info->minimum=0.0;
389 quantum_info->scale=(MagickRealType) QuantumRange/(quantum_info->maximum-
390 quantum_info->minimum);
391 option=GetImageOption(image_info,"quantum:scale");
392 if (option != (char *) NULL)
393 quantum_info->scale=InterpretLocaleValue(option,(char **) NULL);
394 option=GetImageOption(image_info,"quantum:polarity");
395 if (option != (char *) NULL)
396 quantum_info->min_is_white=LocaleCompare(option,"min-is-white") == 0 ?
397 MagickTrue : MagickFalse;
401 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
405 % G e t Q u a n t u m P i x e l s %
409 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
411 % GetQuantumPixels() returns the quantum pixels.
413 % The format of the GetQuantumPixels method is:
415 % unsigned char *QuantumPixels GetQuantumPixels(
416 % const QuantumInfo *quantum_info)
418 % A description of each parameter follows:
420 % o image: the image.
423 MagickExport unsigned char *GetQuantumPixels(const QuantumInfo *quantum_info)
426 id = GetOpenMPThreadId();
428 assert(quantum_info != (QuantumInfo *) NULL);
429 assert(quantum_info->signature == MagickSignature);
430 return(quantum_info->pixels[id]);
434 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
438 % G e t Q u a n t u m T y p e %
442 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
444 % GetQuantumType() returns the quantum type of the image.
446 % The format of the GetQuantumType method is:
448 % QuantumType GetQuantumType(Image *image,ExceptionInfo *exception)
450 % A description of each parameter follows:
452 % o image: the image.
455 MagickExport QuantumType GetQuantumType(Image *image,ExceptionInfo *exception)
460 assert(image != (Image *) NULL);
461 assert(image->signature == MagickSignature);
462 if (image->debug != MagickFalse)
463 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
464 quantum_type=RGBQuantum;
465 if (image->matte != MagickFalse)
466 quantum_type=RGBAQuantum;
467 if (image->colorspace == CMYKColorspace)
469 quantum_type=CMYKQuantum;
470 if (image->matte != MagickFalse)
471 quantum_type=CMYKAQuantum;
473 if (IsImageGray(image,exception) != MagickFalse)
475 quantum_type=GrayQuantum;
476 if (image->matte != MagickFalse)
477 quantum_type=GrayAlphaQuantum;
480 if (image->storage_class == PseudoClass)
482 quantum_type=IndexQuantum;
483 if (image->matte != MagickFalse)
484 quantum_type=IndexAlphaQuantum;
486 return(quantum_type);
490 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
494 % S e t Q u a n t u m F o r m a t %
498 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
500 % SetQuantumAlphaType() sets the quantum format.
502 % The format of the SetQuantumAlphaType method is:
504 % void SetQuantumAlphaType(QuantumInfo *quantum_info,
505 % const QuantumAlphaType type)
507 % A description of each parameter follows:
509 % o quantum_info: the quantum info.
511 % o type: the alpha type (e.g. associate).
514 MagickExport void SetQuantumAlphaType(QuantumInfo *quantum_info,
515 const QuantumAlphaType type)
517 assert(quantum_info != (QuantumInfo *) NULL);
518 assert(quantum_info->signature == MagickSignature);
519 quantum_info->alpha_type=type;
523 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
527 % S e t Q u a n t u m D e p t h %
531 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
533 % SetQuantumDepth() sets the quantum depth.
535 % The format of the SetQuantumDepth method is:
537 % MagickBooleanType SetQuantumDepth(const Image *image,
538 % QuantumInfo *quantum_info,const size_t depth)
540 % A description of each parameter follows:
542 % o image: the image.
544 % o quantum_info: the quantum info.
546 % o depth: the quantum depth.
549 MagickExport MagickBooleanType SetQuantumDepth(const Image *image,
550 QuantumInfo *quantum_info,const size_t depth)
556 Allocate the quantum pixel buffer.
558 assert(image != (Image *) NULL);
559 assert(image->signature == MagickSignature);
560 if (image->debug != MagickFalse)
561 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
562 assert(quantum_info != (QuantumInfo *) NULL);
563 assert(quantum_info->signature == MagickSignature);
564 quantum_info->depth=depth;
565 if (quantum_info->format == FloatingPointQuantumFormat)
567 if (quantum_info->depth > 32)
568 quantum_info->depth=64;
570 if (quantum_info->depth > 16)
571 quantum_info->depth=32;
573 quantum_info->depth=16;
575 if (quantum_info->pixels != (unsigned char **) NULL)
576 DestroyQuantumPixels(quantum_info);
577 status=AcquireQuantumPixels(quantum_info,(6+quantum_info->pad)*image->columns*
578 ((quantum_info->depth+7)/8)); /* allow for CMYKA + RLE byte + pad */
583 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
587 % S e t Q u a n t u m F o r m a t %
591 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
593 % SetQuantumFormat() sets the quantum format.
595 % The format of the SetQuantumFormat method is:
597 % MagickBooleanType SetQuantumFormat(const Image *image,
598 % QuantumInfo *quantum_info,const QuantumFormatType format)
600 % A description of each parameter follows:
602 % o image: the image.
604 % o quantum_info: the quantum info.
606 % o format: the quantum format.
609 MagickExport MagickBooleanType SetQuantumFormat(const Image *image,
610 QuantumInfo *quantum_info,const QuantumFormatType format)
612 assert(image != (Image *) NULL);
613 assert(image->signature == MagickSignature);
614 if (image->debug != MagickFalse)
615 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
616 assert(quantum_info != (QuantumInfo *) NULL);
617 assert(quantum_info->signature == MagickSignature);
618 quantum_info->format=format;
619 return(SetQuantumDepth(image,quantum_info,quantum_info->depth));
623 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
627 % S e t Q u a n t u m I m a g e T y p e %
631 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
633 % SetQuantumImageType() sets the image type based on the quantum type.
635 % The format of the SetQuantumImageType method is:
637 % void ImageType SetQuantumImageType(Image *image,
638 % const QuantumType quantum_type)
640 % A description of each parameter follows:
642 % o image: the image.
644 % o quantum_type: Declare which pixel components to transfer (red, green,
645 % blue, opacity, RGB, or RGBA).
648 MagickExport void SetQuantumImageType(Image *image,
649 const QuantumType quantum_type)
651 assert(image != (Image *) NULL);
652 assert(image->signature == MagickSignature);
653 if (image->debug != MagickFalse)
654 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
655 switch (quantum_type)
658 case IndexAlphaQuantum:
660 image->type=PaletteType;
664 case GrayAlphaQuantum:
666 image->type=GrayscaleType;
667 if (image->depth == 1)
668 image->type=BilevelType;
678 image->type=ColorSeparationType;
683 image->type=TrueColorType;
690 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
694 % S e t Q u a n t u m P a c k %
698 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
700 % SetQuantumPack() sets the quantum pack flag.
702 % The format of the SetQuantumPack method is:
704 % void SetQuantumPack(QuantumInfo *quantum_info,
705 % const MagickBooleanType pack)
707 % A description of each parameter follows:
709 % o quantum_info: the quantum info.
711 % o pack: the pack flag.
714 MagickExport void SetQuantumPack(QuantumInfo *quantum_info,
715 const MagickBooleanType pack)
717 assert(quantum_info != (QuantumInfo *) NULL);
718 assert(quantum_info->signature == MagickSignature);
719 quantum_info->pack=pack;
724 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
728 % S e t Q u a n t u m P a d %
732 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
734 % SetQuantumPad() sets the quantum pad.
736 % The format of the SetQuantumPad method is:
738 % MagickBooleanType SetQuantumPad(const Image *image,
739 % QuantumInfo *quantum_info,const size_t pad)
741 % A description of each parameter follows:
743 % o image: the image.
745 % o quantum_info: the quantum info.
747 % o pad: the quantum pad.
750 MagickExport MagickBooleanType SetQuantumPad(const Image *image,
751 QuantumInfo *quantum_info,const size_t pad)
753 assert(image != (Image *) NULL);
754 assert(image->signature == MagickSignature);
755 if (image->debug != MagickFalse)
756 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
757 assert(quantum_info != (QuantumInfo *) NULL);
758 assert(quantum_info->signature == MagickSignature);
759 quantum_info->pad=pad;
760 return(SetQuantumDepth(image,quantum_info,quantum_info->depth));
764 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
768 % S e t Q u a n t u m M i n I s W h i t e %
772 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
774 % SetQuantumMinIsWhite() sets the quantum min-is-white flag.
776 % The format of the SetQuantumMinIsWhite method is:
778 % void SetQuantumMinIsWhite(QuantumInfo *quantum_info,
779 % const MagickBooleanType min_is_white)
781 % A description of each parameter follows:
783 % o quantum_info: the quantum info.
785 % o min_is_white: the min-is-white flag.
788 MagickExport void SetQuantumMinIsWhite(QuantumInfo *quantum_info,
789 const MagickBooleanType min_is_white)
791 assert(quantum_info != (QuantumInfo *) NULL);
792 assert(quantum_info->signature == MagickSignature);
793 quantum_info->min_is_white=min_is_white;
797 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
801 % S e t Q u a n t u m Q u a n t u m %
805 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
807 % SetQuantumQuantum() sets the quantum quantum.
809 % The format of the SetQuantumQuantum method is:
811 % void SetQuantumQuantum(QuantumInfo *quantum_info,
812 % const size_t quantum)
814 % A description of each parameter follows:
816 % o quantum_info: the quantum info.
818 % o quantum: the quantum quantum.
821 MagickExport void SetQuantumQuantum(QuantumInfo *quantum_info,
822 const size_t quantum)
824 assert(quantum_info != (QuantumInfo *) NULL);
825 assert(quantum_info->signature == MagickSignature);
826 quantum_info->quantum=quantum;
830 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
834 % S e t Q u a n t u m S c a l e %
838 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
840 % SetQuantumScale() sets the quantum scale.
842 % The format of the SetQuantumScale method is:
844 % void SetQuantumScale(QuantumInfo *quantum_info,const double scale)
846 % A description of each parameter follows:
848 % o quantum_info: the quantum info.
850 % o scale: the quantum scale.
853 MagickExport void SetQuantumScale(QuantumInfo *quantum_info,const double scale)
855 assert(quantum_info != (QuantumInfo *) NULL);
856 assert(quantum_info->signature == MagickSignature);
857 quantum_info->scale=scale;