2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
13 % Read/Write Adobe Photoshop Image Format %
21 % Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization %
22 % dedicated to making software imaging solutions freely available. %
24 % You may not use this file except in compliance with the License. You may %
25 % obtain a copy of the License at %
27 % http://www.imagemagick.org/script/license.php %
29 % Unless required by applicable law or agreed to in writing, software %
30 % distributed under the License is distributed on an "AS IS" BASIS, %
31 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
32 % See the License for the specific language governing permissions and %
33 % limitations under the License. %
35 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
43 #include "MagickCore/studio.h"
44 #include "MagickCore/artifact.h"
45 #include "MagickCore/attribute.h"
46 #include "MagickCore/blob.h"
47 #include "MagickCore/blob-private.h"
48 #include "MagickCore/cache.h"
49 #include "MagickCore/colormap.h"
50 #include "MagickCore/colorspace.h"
51 #include "MagickCore/colorspace-private.h"
52 #include "MagickCore/constitute.h"
53 #include "MagickCore/enhance.h"
54 #include "MagickCore/exception.h"
55 #include "MagickCore/exception-private.h"
56 #include "MagickCore/image.h"
57 #include "MagickCore/image-private.h"
58 #include "MagickCore/list.h"
59 #include "MagickCore/log.h"
60 #include "MagickCore/magick.h"
61 #include "MagickCore/memory_.h"
62 #include "MagickCore/module.h"
63 #include "MagickCore/monitor-private.h"
64 #include "MagickCore/pixel.h"
65 #include "MagickCore/pixel-accessor.h"
66 #include "MagickCore/profile.h"
67 #include "MagickCore/property.h"
68 #include "MagickCore/quantum-private.h"
69 #include "MagickCore/static.h"
70 #include "MagickCore/string_.h"
75 #define MaxPSDChannels 56
76 #define PSDQuantum(x) (((ssize_t) (x)+1) & -2)
79 Enumerated declaractions.
94 Typedef declaractions.
96 typedef struct _ChannelInfo
105 typedef struct _LayerInfo
115 channel_info[MaxPSDChannels];
139 typedef struct _PSDInfo
161 Forward declarations.
163 static MagickBooleanType
164 WritePSDImage(const ImageInfo *,Image *,ExceptionInfo *);
167 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
175 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
177 % IsPSD()() returns MagickTrue if the image format type, identified by the
178 % magick string, is PSD.
180 % The format of the IsPSD method is:
182 % MagickBooleanType IsPSD(const unsigned char *magick,const size_t length)
184 % A description of each parameter follows:
186 % o magick: compare image format pattern against these bytes.
188 % o length: Specifies the length of the magick string.
191 static MagickBooleanType IsPSD(const unsigned char *magick,const size_t length)
195 if (LocaleNCompare((const char *) magick,"8BPS",4) == 0)
201 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
205 % R e a d P S D I m a g e %
209 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
211 % ReadPSDImage() reads an Adobe Photoshop image file and returns it. It
212 % allocates the memory necessary for the new Image structure and returns a
213 % pointer to the new image.
215 % The format of the ReadPSDImage method is:
217 % Image *ReadPSDImage(image_info)
219 % A description of each parameter follows:
221 % o image_info: the image info.
223 % o exception: return any errors or warnings in this structure.
227 static const char *CompositeOperatorToPSDBlendMode(CompositeOperator op)
234 case OverCompositeOp: blend_mode = "norm"; break;
235 case MultiplyCompositeOp: blend_mode = "mul "; break;
236 case DissolveCompositeOp: blend_mode = "diss"; break;
237 case DifferenceCompositeOp: blend_mode = "diff"; break;
238 case DarkenCompositeOp: blend_mode = "dark"; break;
239 case LightenCompositeOp: blend_mode = "lite"; break;
240 case HueCompositeOp: blend_mode = "hue "; break;
241 case SaturateCompositeOp: blend_mode = "sat "; break;
242 case ColorizeCompositeOp: blend_mode = "colr"; break;
243 case LuminizeCompositeOp: blend_mode = "lum "; break;
244 case ScreenCompositeOp: blend_mode = "scrn"; break;
245 case OverlayCompositeOp: blend_mode = "over"; break;
252 static ssize_t DecodePSDPixels(const size_t number_compact_pixels,
253 const unsigned char *compact_pixels,const ssize_t depth,
254 const size_t number_pixels,unsigned char *pixels)
269 packets=(ssize_t) number_compact_pixels;
270 for (i=0; (packets > 1) && (i < (ssize_t) number_pixels); )
272 length=(*compact_pixels++);
279 pixel=(*compact_pixels++);
281 for (j=0; j < (ssize_t) length; j++)
287 *pixels++=(pixel >> 7) & 0x01 ? 0U : 255U;
288 *pixels++=(pixel >> 6) & 0x01 ? 0U : 255U;
289 *pixels++=(pixel >> 5) & 0x01 ? 0U : 255U;
290 *pixels++=(pixel >> 4) & 0x01 ? 0U : 255U;
291 *pixels++=(pixel >> 3) & 0x01 ? 0U : 255U;
292 *pixels++=(pixel >> 2) & 0x01 ? 0U : 255U;
293 *pixels++=(pixel >> 1) & 0x01 ? 0U : 255U;
294 *pixels++=(pixel >> 0) & 0x01 ? 0U : 255U;
300 *pixels++=(unsigned char) ((pixel >> 4) & 0xff);
301 *pixels++=(unsigned char) ((pixel & 0x0f) & 0xff);
307 *pixels++=(unsigned char) ((pixel >> 6) & 0x03);
308 *pixels++=(unsigned char) ((pixel >> 4) & 0x03);
309 *pixels++=(unsigned char) ((pixel >> 2) & 0x03);
310 *pixels++=(unsigned char) ((pixel & 0x03) & 0x03);
316 *pixels++=(unsigned char) pixel;
325 for (j=0; j < (ssize_t) length; j++)
331 *pixels++=(*compact_pixels >> 7) & 0x01 ? 0U : 255U;
332 *pixels++=(*compact_pixels >> 6) & 0x01 ? 0U : 255U;
333 *pixels++=(*compact_pixels >> 5) & 0x01 ? 0U : 255U;
334 *pixels++=(*compact_pixels >> 4) & 0x01 ? 0U : 255U;
335 *pixels++=(*compact_pixels >> 3) & 0x01 ? 0U : 255U;
336 *pixels++=(*compact_pixels >> 2) & 0x01 ? 0U : 255U;
337 *pixels++=(*compact_pixels >> 1) & 0x01 ? 0U : 255U;
338 *pixels++=(*compact_pixels >> 0) & 0x01 ? 0U : 255U;
344 *pixels++=(*compact_pixels >> 4) & 0xff;
345 *pixels++=(*compact_pixels & 0x0f) & 0xff;
351 *pixels++=(*compact_pixels >> 6) & 0x03;
352 *pixels++=(*compact_pixels >> 4) & 0x03;
353 *pixels++=(*compact_pixels >> 2) & 0x03;
354 *pixels++=(*compact_pixels & 0x03) & 0x03;
360 *pixels++=(*compact_pixels);
371 static inline MagickOffsetType GetPSDOffset(PSDInfo *psd_info,Image *image)
373 if (psd_info->version == 1)
374 return((MagickOffsetType) ReadBlobMSBShort(image));
375 return((MagickOffsetType) ReadBlobMSBLong(image));
378 static inline MagickSizeType GetPSDSize(PSDInfo *psd_info,Image *image)
380 if (psd_info->version == 1)
381 return((MagickSizeType) ReadBlobMSBLong(image));
382 return((MagickSizeType) ReadBlobMSBLongLong(image));
385 static inline ssize_t MagickAbsoluteValue(const ssize_t x)
392 static const char *ModeToString(PSDImageType type)
396 case BitmapMode: return "Bitmap";
397 case GrayscaleMode: return "Grayscale";
398 case IndexedMode: return "Indexed";
399 case RGBMode: return "RGB";
400 case CMYKMode: return "CMYK";
401 case MultichannelMode: return "Multichannel";
402 case DuotoneMode: return "Duotone";
403 case LabMode: return "L*A*B";
404 default: return "unknown";
408 static MagickBooleanType ParseImageResourceBlocks(Image *image,
409 const unsigned char *blocks,size_t length)
427 profile=BlobToStringInfo((const void *) NULL,length);
428 SetStringInfoDatum(profile,blocks);
429 (void) SetImageProfile(image,"8bim",profile);
430 profile=DestroyStringInfo(profile);
431 for (p=blocks; (p >= blocks) && (p < (blocks+length-16)); )
433 if (LocaleNCompare((const char *) p,"8BIM",4) != 0)
435 p=PushLongPixel(MSBEndian,p,&long_sans);
436 p=PushShortPixel(MSBEndian,p,&id);
437 p=PushShortPixel(MSBEndian,p,&short_sans);
438 p=PushLongPixel(MSBEndian,p,&count);
444 value[MaxTextExtent];
452 p=PushShortPixel(MSBEndian,p,&resolution);
453 image->x_resolution=(double) resolution;
454 (void) FormatLocaleString(value,MaxTextExtent,"%g",image->x_resolution);
455 (void) SetImageProperty(image,"tiff:XResolution",value);
456 p=PushShortPixel(MSBEndian,p,&short_sans);
457 p=PushShortPixel(MSBEndian,p,&short_sans);
458 p=PushShortPixel(MSBEndian,p,&short_sans);
459 p=PushShortPixel(MSBEndian,p,&resolution);
460 image->y_resolution=(double) resolution;
461 (void) FormatLocaleString(value,MaxTextExtent,"%g",image->y_resolution);
462 (void) SetImageProperty(image,"tiff:YResolution",value);
463 p=PushShortPixel(MSBEndian,p,&short_sans);
464 p=PushShortPixel(MSBEndian,p,&short_sans);
465 p=PushShortPixel(MSBEndian,p,&short_sans);
474 if ((count & 0x01) != 0)
480 static CompositeOperator PSDBlendModeToCompositeOperator(const char *mode)
482 if (mode == (const char *) NULL)
483 return(OverCompositeOp);
484 if (LocaleNCompare(mode,"norm",4) == 0)
485 return(OverCompositeOp);
486 if (LocaleNCompare(mode,"mul ",4) == 0)
487 return(MultiplyCompositeOp);
488 if (LocaleNCompare(mode,"diss",4) == 0)
489 return(DissolveCompositeOp);
490 if (LocaleNCompare(mode,"diff",4) == 0)
491 return(DifferenceCompositeOp);
492 if (LocaleNCompare(mode,"dark",4) == 0)
493 return(DarkenCompositeOp);
494 if (LocaleNCompare(mode,"lite",4) == 0)
495 return(LightenCompositeOp);
496 if (LocaleNCompare(mode,"hue ",4) == 0)
497 return(HueCompositeOp);
498 if (LocaleNCompare(mode,"sat ",4) == 0)
499 return(SaturateCompositeOp);
500 if (LocaleNCompare(mode,"colr",4) == 0)
501 return(ColorizeCompositeOp);
502 if (LocaleNCompare(mode,"lum ",4) == 0)
503 return(LuminizeCompositeOp);
504 if (LocaleNCompare(mode,"scrn",4) == 0)
505 return(ScreenCompositeOp);
506 if (LocaleNCompare(mode,"over",4) == 0)
507 return(OverlayCompositeOp);
508 if (LocaleNCompare(mode,"hLit",4) == 0)
509 return(OverCompositeOp);
510 if (LocaleNCompare(mode,"sLit",4) == 0)
511 return(OverCompositeOp);
512 if (LocaleNCompare(mode,"smud",4) == 0)
513 return(OverCompositeOp);
514 if (LocaleNCompare(mode,"div ",4) == 0)
515 return(OverCompositeOp);
516 if (LocaleNCompare(mode,"idiv",4) == 0)
517 return(OverCompositeOp);
518 return(OverCompositeOp);
521 static MagickBooleanType ReadPSDLayer(Image *image,const size_t channels,
522 const ssize_t type,const MagickOffsetType *offsets,ExceptionInfo *exception)
530 register const unsigned char
554 if (image->storage_class == PseudoClass)
556 if (image->colors > 256)
559 if (image->depth > 8)
563 if (image->depth > 8)
565 pixels=(unsigned char *) AcquireQuantumMemory(image->columns+256,packet_size*
567 if (pixels == (unsigned char *) NULL)
568 ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
570 (void) ResetMagickMemory(pixels,0,image->columns*packet_size*sizeof(*pixels));
571 compact_pixels=(unsigned char *) NULL;
572 if (image->compression == RLECompression)
578 for (y=0; y < (ssize_t) image->rows; y++)
579 if ((MagickOffsetType) length < offsets[y])
580 length=(size_t) offsets[y];
581 compact_pixels=(unsigned char *) AcquireQuantumMemory(length,
583 if (compact_pixels == (unsigned char *) NULL)
584 ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
586 (void) ResetMagickMemory(compact_pixels,0,length*sizeof(*compact_pixels));
588 colorspace=image->colorspace;
589 for (y=0; y < (ssize_t) image->rows; y++)
591 if (image->depth == 1)
593 if (image->compression != RLECompression)
594 count=ReadBlob(image,(image->columns+7)/8,pixels);
597 count=ReadBlob(image,(size_t) offsets[y],compact_pixels);
598 if (count != (ssize_t) offsets[y])
600 count=DecodePSDPixels((size_t) offsets[y],compact_pixels,
601 (ssize_t) 123456,(size_t) ((image->columns+7)/8),pixels);
603 if (count < (ssize_t) ((image->columns+7)/8))
608 if (image->compression != RLECompression)
609 count=ReadBlob(image,packet_size*image->columns,pixels);
612 count=ReadBlob(image,(size_t) offsets[y],compact_pixels);
613 if (count != (ssize_t) offsets[y])
615 count=DecodePSDPixels((size_t) offsets[y],compact_pixels,
616 (ssize_t) image->depth,packet_size*image->columns,pixels);
618 if (count < (ssize_t) (packet_size*image->columns))
621 q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
622 if (q == (Quantum *) NULL)
625 for (x=0; x < (ssize_t) image->columns; x++)
627 if (packet_size == 1)
628 pixel=ScaleCharToQuantum(*p++);
631 p=PushShortPixel(MSBEndian,p,&nibble);
632 pixel=ScaleShortToQuantum(nibble);
638 SetPixelAlpha(image,pixel,q);
643 SetPixelRed(image,pixel,q);
646 SetPixelGreen(image,GetPixelRed(image,q),q);
647 SetPixelBlue(image,GetPixelRed(image,q),q);
649 if (image->storage_class == PseudoClass)
651 if (packet_size == 1)
652 SetPixelIndex(image,ScaleQuantumToChar(pixel),q);
654 SetPixelIndex(image,ScaleQuantumToShort(pixel),q);
655 SetPixelPacket(image,image->colormap+(ssize_t)
656 GetPixelIndex(image,q),q);
657 if (image->depth == 1)
663 number_bits=image->columns-x;
666 for (bit=0; bit < number_bits; bit++)
668 SetPixelIndex(image,(((unsigned char) pixel) &
669 (0x01 << (7-bit))) != 0 ? 0 : 255,q);
670 SetPixelPacket(image,image->colormap+(ssize_t)
671 GetPixelIndex(image,q),q);
672 q+=GetPixelChannels(image);
683 if (image->storage_class == PseudoClass)
684 SetPixelAlpha(image,pixel,q);
686 SetPixelGreen(image,pixel,q);
691 if (image->storage_class == PseudoClass)
692 SetPixelAlpha(image,pixel,q);
694 SetPixelBlue(image,pixel,q);
699 if (image->colorspace == CMYKColorspace)
700 SetPixelBlack(image,pixel,q);
702 SetPixelAlpha(image,pixel,q);
707 if ((IsRGBColorspace(image->colorspace) == MagickTrue) && (channels > 3))
709 SetPixelAlpha(image,pixel,q);
715 q+=GetPixelChannels(image);
717 if (SyncAuthenticPixels(image,exception) == MagickFalse)
720 image->colorspace=colorspace;
721 if (image->compression == RLECompression)
722 compact_pixels=(unsigned char *) RelinquishMagickMemory(compact_pixels);
723 pixels=(unsigned char *) RelinquishMagickMemory(pixels);
727 static Image *ReadPSDImage(const ImageInfo *image_info,ExceptionInfo *exception)
730 message[MaxTextExtent],
763 skip_first_alpha = 0;
780 assert(image_info != (const ImageInfo *) NULL);
781 assert(image_info->signature == MagickSignature);
782 if (image_info->debug != MagickFalse)
783 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
784 image_info->filename);
785 assert(exception != (ExceptionInfo *) NULL);
786 assert(exception->signature == MagickSignature);
787 image=AcquireImage(image_info,exception);
788 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
789 if (status == MagickFalse)
791 image=DestroyImageList(image);
792 return((Image *) NULL);
797 count=ReadBlob(image,4,(unsigned char *) psd_info.signature);
798 psd_info.version=ReadBlobMSBShort(image);
799 if ((count == 0) || (LocaleNCompare(psd_info.signature,"8BPS",4) != 0) ||
800 ((psd_info.version != 1) && (psd_info.version != 2)))
801 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
802 count=ReadBlob(image,6,psd_info.reserved);
803 psd_info.channels=ReadBlobMSBShort(image);
804 if (psd_info.channels > MaxPSDChannels)
805 ThrowReaderException(CorruptImageError,"MaximumChannelsExceeded");
806 psd_info.rows=ReadBlobMSBLong(image);
807 psd_info.columns=ReadBlobMSBLong(image);
808 if ((psd_info.version == 1) && ((psd_info.rows > 30000) ||
809 (psd_info.columns > 30000)))
810 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
811 psd_info.depth=ReadBlobMSBShort(image);
812 if ((psd_info.depth != 1) && (psd_info.depth != 8) && (psd_info.depth != 16))
813 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
814 psd_info.mode=ReadBlobMSBShort(image);
815 if (image->debug != MagickFalse)
816 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
817 " Image is %.20g x %.20g with channels=%.20g, depth=%.20g, mode=%s",
818 (double) psd_info.columns,(double) psd_info.rows,(double)
819 psd_info.channels,(double) psd_info.depth,ModeToString((PSDImageType)
824 image->depth=psd_info.depth;
825 image->columns=psd_info.columns;
826 image->rows=psd_info.rows;
827 if (SetImageBackgroundColor(image) == MagickFalse)
829 InheritException(exception,&image->exception);
830 image=DestroyImageList(image);
831 return((Image *) NULL);
833 image->matte=psd_info.channels >= 4 ? MagickTrue : MagickFalse;
834 if (psd_info.mode == LabMode)
835 image->colorspace=LabColorspace;
836 if (psd_info.mode == CMYKMode)
838 image->colorspace=CMYKColorspace;
839 image->matte=psd_info.channels >= 5 ? MagickTrue : MagickFalse;
841 if ((psd_info.mode == BitmapMode) || (psd_info.mode == GrayscaleMode) ||
842 (psd_info.mode == DuotoneMode))
844 if (AcquireImageColormap(image,256,exception) == MagickFalse)
845 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
846 image->matte=psd_info.channels >= 2 ? MagickTrue : MagickFalse;
847 if (image->debug != MagickFalse)
848 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
849 " Image colormap allocated");
850 image->colorspace=GRAYColorspace;
852 if (image->debug != MagickFalse)
853 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
854 image->matte ? " image has matte" : " image has no matte");
856 Read PSD raster colormap only present for indexed and duotone images.
858 length=ReadBlobMSBLong(image);
861 if (image->debug != MagickFalse)
862 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
863 " reading colormap");
864 if (psd_info.mode == DuotoneMode)
867 Duotone image data; the format of this data is undocumented.
869 data=(unsigned char *) AcquireQuantumMemory((size_t) length,
871 if (data == (unsigned char *) NULL)
872 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
873 count=ReadBlob(image,(size_t) length,data);
874 data=(unsigned char *) RelinquishMagickMemory(data);
879 Read PSD raster colormap.
881 if (AcquireImageColormap(image,(size_t) (length/3),exception) == MagickFalse)
882 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
883 for (i=0; i < (ssize_t) image->colors; i++)
884 image->colormap[i].red=ScaleCharToQuantum((unsigned char)
885 ReadBlobByte(image));
886 for (i=0; i < (ssize_t) image->colors; i++)
887 image->colormap[i].green=ScaleCharToQuantum((unsigned char)
888 ReadBlobByte(image));
889 for (i=0; i < (ssize_t) image->colors; i++)
890 image->colormap[i].blue=ScaleCharToQuantum((unsigned char)
891 ReadBlobByte(image));
892 image->matte=psd_info.channels >= 2 ? MagickTrue : MagickFalse;
895 length=ReadBlobMSBLong(image);
902 Image resources block.
904 if (image->debug != MagickFalse)
905 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
906 " reading image resource blocks - %.20g bytes",(double)
907 ((MagickOffsetType) length));
908 blocks=(unsigned char *) AcquireQuantumMemory((size_t) length,
910 if (blocks == (unsigned char *) NULL)
911 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
912 count=ReadBlob(image,(size_t) length,blocks);
913 if ((count != (ssize_t) length) ||
914 (LocaleNCompare((char *) blocks,"8BIM",4) != 0))
916 blocks=(unsigned char *) RelinquishMagickMemory(blocks);
917 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
919 (void) ParseImageResourceBlocks(image,blocks,(size_t) length);
920 blocks=(unsigned char *) RelinquishMagickMemory(blocks);
923 Layer and mask block.
925 layer_info=(LayerInfo *) NULL;
927 length=GetPSDSize(&psd_info,image);
930 length=ReadBlobMSBLong(image);
931 length=ReadBlobMSBLong(image);
933 if ((image_info->number_scenes == 1) && (image_info->scene == 0))
935 if (DiscardBlobBytes(image,length) == MagickFalse)
936 ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
942 if (image->debug != MagickFalse)
943 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
944 " image has no layers");
948 offset=TellBlob(image);
949 size=GetPSDSize(&psd_info,image);
961 quantum=psd_info.version == 1 ? 4UL : 8UL;
962 tag=ReadBlobMSBLong(image);
964 count=ReadBlob(image,4,(unsigned char *) type);
965 if ((count == 0) || (LocaleNCompare(type,"8BIM",4) != 0))
967 if (DiscardBlobBytes(image,length-quantum-8) == MagickFalse)
968 ThrowFileException(exception,CorruptImageError,
969 "UnexpectedEndOfFile",image->filename);
973 count=ReadBlob(image,4,(unsigned char *) type);
974 if ((count != 0) && (LocaleNCompare(type,"Lr16",4) == 0))
975 size=GetPSDSize(&psd_info,image);
977 if (DiscardBlobBytes(image,length-quantum-12) == MagickFalse)
978 ThrowFileException(exception,CorruptImageError,
979 "UnexpectedEndOfFile",image->filename);
987 layer_offset=offset+length;
988 number_layers=(short) ReadBlobMSBShort(image);
989 if (image->debug != MagickFalse)
990 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
991 " image contains %.20g layers",(double) number_layers);
992 if (number_layers < 0)
995 Weird hack in PSD format to ignore first alpha channel.
998 (void) skip_first_alpha;
999 number_layers=MagickAbsoluteValue(number_layers);
1000 if (image->debug != MagickFalse)
1001 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1002 " negative layer count corrected for");
1004 layer_info=(LayerInfo *) AcquireQuantumMemory((size_t) number_layers,
1005 sizeof(*layer_info));
1006 if (layer_info == (LayerInfo *) NULL)
1008 if (image->debug != MagickFalse)
1009 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1010 " allocation of LayerInfo failed");
1011 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
1013 (void) ResetMagickMemory(layer_info,0,(size_t) number_layers*
1014 sizeof(*layer_info));
1015 for (i=0; i < number_layers; i++)
1021 if (image->debug != MagickFalse)
1022 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1023 " reading layer #%.20g",(double) i+1);
1024 layer_info[i].page.y=(int) ReadBlobMSBLong(image);
1025 layer_info[i].page.x=(int) ReadBlobMSBLong(image);
1026 y=(int) ReadBlobMSBLong(image);
1027 x=(int) ReadBlobMSBLong(image);
1028 layer_info[i].page.width=(ssize_t) (x-layer_info[i].page.x);
1029 layer_info[i].page.height=(ssize_t) (y-layer_info[i].page.y);
1030 layer_info[i].channels=ReadBlobMSBShort(image);
1031 if (layer_info[i].channels > MaxPSDChannels)
1032 ThrowReaderException(CorruptImageError,"MaximumChannelsExceeded");
1033 if (image->debug != MagickFalse)
1034 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1035 " offset(%.20g,%.20g), size(%.20g,%.20g), channels=%.20g",
1036 (double) layer_info[i].page.x,(double) layer_info[i].page.y,
1037 (double) layer_info[i].page.height,(double)
1038 layer_info[i].page.width,(double) layer_info[i].channels);
1039 for (j=0; j < (ssize_t) layer_info[i].channels; j++)
1041 layer_info[i].channel_info[j].type=(short)
1042 ReadBlobMSBShort(image);
1043 layer_info[i].channel_info[j].size=(size_t)
1044 GetPSDSize(&psd_info,image);
1045 if (image->debug != MagickFalse)
1046 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1047 " channel[%.20g]: type=%.20g, size=%.20g",(double) j,
1048 (double) layer_info[i].channel_info[j].type,
1049 (double) layer_info[i].channel_info[j].size);
1051 count=ReadBlob(image,4,(unsigned char *) type);
1052 if ((count == 0) || (LocaleNCompare(type,"8BIM",4) != 0))
1054 if (image->debug != MagickFalse)
1055 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1056 " layer type was %.4s instead of 8BIM", type);
1057 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1059 count=ReadBlob(image,4,(unsigned char *) layer_info[i].blendkey);
1060 layer_info[i].opacity=(Quantum) ScaleCharToQuantum((unsigned char)
1061 ReadBlobByte(image));
1062 layer_info[i].clipping=(unsigned char) ReadBlobByte(image);
1063 layer_info[i].flags=(unsigned char) ReadBlobByte(image);
1064 layer_info[i].visible=!(layer_info[i].flags & 0x02);
1065 if (image->debug != MagickFalse)
1066 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1067 " blend=%.4s, opacity=%.20g, clipping=%s, flags=%d, visible=%s",
1068 layer_info[i].blendkey,(double) layer_info[i].opacity,
1069 layer_info[i].clipping ? "true" : "false",layer_info[i].flags,
1070 layer_info[i].visible ? "true" : "false");
1071 (void) ReadBlobByte(image); /* filler */
1073 size=ReadBlobMSBLong(image);
1076 if (image->debug != MagickFalse)
1077 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1078 " layer contains additional info");
1079 length=ReadBlobMSBLong(image);
1085 layer_info[i].mask.y=(int) ReadBlobMSBLong(image);
1086 layer_info[i].mask.x=(int) ReadBlobMSBLong(image);
1087 layer_info[i].mask.height=(size_t)
1088 (ReadBlobMSBLong(image)-layer_info[i].mask.y);
1089 layer_info[i].mask.width=(size_t)
1090 (ReadBlobMSBLong(image)-layer_info[i].mask.x);
1091 if (image->debug != MagickFalse)
1092 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1093 " layer mask: offset(%.20g,%.20g), size(%.20g,%.20g), length=%.20g",
1094 (double) layer_info[i].mask.x,(double) layer_info[i].mask.y,
1095 (double) layer_info[i].mask.width,(double)
1096 layer_info[i].mask.height,(double)
1097 ((MagickOffsetType) length-16));
1099 Skip over the rest of the layer mask information.
1101 if (DiscardBlobBytes(image,length-16) == MagickFalse)
1102 ThrowFileException(exception,CorruptImageError,
1103 "UnexpectedEndOfFile",image->filename);
1105 combinedlength+=length+4; /* +4 for length */
1106 length=ReadBlobMSBLong(image);
1110 Layer blending ranges info.
1112 if (image->debug != MagickFalse)
1113 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1114 " layer blending ranges: length=%.20g",(double)
1115 ((MagickOffsetType) length));
1117 We read it, but don't use it...
1119 for (j=0; j < (ssize_t) (length); j+=8)
1121 size_t blend_source=ReadBlobMSBLong(image);
1122 size_t blend_dest=ReadBlobMSBLong(image);
1123 if (image->debug != MagickFalse)
1124 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1125 " source(%x), dest(%x)",(unsigned int)
1126 blend_source,(unsigned int) blend_dest);
1129 combinedlength+=length+4;
1133 length=(size_t) ReadBlobByte(image);
1134 for (j=0; j < (ssize_t) length; j++)
1135 layer_info[i].name[j]=(unsigned char) ReadBlobByte(image);
1136 layer_info[i].name[j]='\0';
1137 if (image->debug != MagickFalse)
1138 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1139 " layer name: %s",layer_info[i].name);
1140 combinedlength+=length+1;
1142 #if 0 /* still in development */
1144 Adjustment layers and other stuff...
1147 char alsig[4], alkey[4];
1149 count=ReadBlob(image,4,alsig);
1150 if ((count == 0) || (LocaleNCompare(alsig,"8BIM",4) != 0)) {
1151 if (debug != MagickFalse)
1153 if (image->debug != MagickFalse)
1154 (void) LogMagickEvent(CoderEvent,GetMagickModule()," adjustment layer type was %.4s instead of 8BIM", alsig);
1156 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1158 count=ReadBlob(image,4,alkey);
1159 length=ReadBlobMSBLong(image);
1160 if (debug != MagickFalse)
1162 if (image->debug != MagickFalse)
1163 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1164 " adjustment layer key: %.4s, data length=%.20g",
1165 alkey, (double) length);
1169 for (j=0; j < (ssize_t) (length); j++)
1170 (void) ReadBlobByte(image);
1174 combinedlength += 12 + length; /* sig, key, length + the actual length*/
1178 Skip the rest of the variable data until we support it.
1180 if (image->debug != MagickFalse)
1181 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1182 " unsupported data: length=%.20g",(double)
1183 ((MagickOffsetType) (size-combinedlength)));
1184 if (DiscardBlobBytes(image,size-combinedlength) == MagickFalse)
1185 ThrowFileException(exception,CorruptImageError,
1186 "UnexpectedEndOfFile",image->filename);
1189 Allocate layered image.
1191 layer_info[i].image=CloneImage(image,layer_info[i].page.width,
1192 layer_info[i].page.height == ~0U ? 1 : layer_info[i].page.height,
1193 MagickFalse,&image->exception);
1194 if (layer_info[i].image == (Image *) NULL)
1196 for (j=0; j < i; j++)
1197 layer_info[j].image=DestroyImage(layer_info[j].image);
1198 if (image->debug != MagickFalse)
1199 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1200 " allocation of image for layer %.20g failed",(double) i);
1201 ThrowReaderException(ResourceLimitError,
1202 "MemoryAllocationFailed");
1204 if (image->debug != MagickFalse)
1205 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1206 " setting up new layer image");
1207 if (image_info->ping != MagickFalse)
1208 (void) SetImageBackgroundColor(layer_info[i].image);
1209 layer_info[i].image->compose=
1210 PSDBlendModeToCompositeOperator(layer_info[i].blendkey);
1211 if (layer_info[i].visible == MagickFalse)
1212 layer_info[i].image->compose=NoCompositeOp;
1213 if (psd_info.mode == CMYKMode)
1214 layer_info[i].image->colorspace=CMYKColorspace;
1215 if ((psd_info.mode == BitmapMode) ||
1216 (psd_info.mode == GrayscaleMode) ||
1217 (psd_info.mode == DuotoneMode))
1218 layer_info[i].image->colorspace=GRAYColorspace;
1219 for (j=0; j < (ssize_t) layer_info[i].channels; j++)
1220 if (layer_info[i].channel_info[j].type == -1)
1221 layer_info[i].image->matte=MagickTrue;
1223 Set up some hidden attributes for folks that need them.
1225 (void) FormatLocaleString(message,MaxTextExtent,"%.20gld",
1226 (double) layer_info[i].page.x);
1227 (void) SetImageArtifact(layer_info[i].image,"psd:layer.x",message);
1228 (void) FormatLocaleString(message,MaxTextExtent,"%.20g",
1229 (double) layer_info[i].page.y);
1230 (void) SetImageArtifact(layer_info[i].image,"psd:layer.y",message);
1231 (void) FormatLocaleString(message,MaxTextExtent,"%.20g",
1232 (double) layer_info[i].opacity);
1233 (void) SetImageArtifact(layer_info[i].image,"psd:layer.opacity",
1235 (void) SetImageProperty(layer_info[i].image,"label",(char *)
1236 layer_info[i].name);
1238 if (image->debug != MagickFalse)
1239 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1240 " reading image data for layers");
1242 Read pixel data for each layer.
1244 for (i=0; i < number_layers; i++)
1246 if (image->debug != MagickFalse)
1247 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1248 " reading data for layer %.20g",(double) i);
1249 for (j=0; j < (ssize_t) layer_info[i].channels; j++)
1251 if (image->debug != MagickFalse)
1252 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1253 " reading data for channel %.20g",(double) j);
1255 if (layer_info[i].channel_info[j].size <= (2*layer_info[i].image->rows))
1260 if (image->debug != MagickFalse)
1261 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1262 " layer data is empty");
1264 A layer without data.
1266 for (k=0; k < (ssize_t) layer_info[i].channel_info[j].size; k++)
1267 (void) ReadBlobByte(layer_info[i].image);
1271 offsets=(MagickOffsetType *) NULL;
1272 layer_info[i].image->compression=NoCompression;
1273 compression=ReadBlobMSBShort(layer_info[i].image);
1274 if ((layer_info[i].page.height != 0) &&
1275 (layer_info[i].page.width != 0))
1277 if (compression == 1)
1280 Read RLE compressed data.
1282 layer_info[i].image->compression=RLECompression;
1283 if (image->debug != MagickFalse)
1284 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1285 " layer data is RLE compressed");
1286 offsets=(MagickOffsetType *) AcquireQuantumMemory(
1287 layer_info[i].image->rows,sizeof(*offsets));
1288 if (offsets == (MagickOffsetType *) NULL)
1289 ThrowReaderException(ResourceLimitError,
1290 "MemoryAllocationFailed");
1291 for (y=0; y < (ssize_t) layer_info[i].image->rows; y++)
1292 offsets[y]=GetPSDOffset(&psd_info,layer_info[i].image);
1294 status=ReadPSDLayer(layer_info[i].image,
1295 layer_info[i].channels,layer_info[i].channel_info[j].type,
1297 if (compression == 1)
1298 offsets=(MagickOffsetType *) RelinquishMagickMemory(
1300 if (status == MagickFalse)
1304 if (layer_info[i].opacity != OpaqueAlpha)
1307 Correct for opacity level.
1309 for (y=0; y < (ssize_t) layer_info[i].image->rows; y++)
1311 q=GetAuthenticPixels(layer_info[i].image,0,y,
1312 layer_info[i].image->columns,1,exception);
1313 if (q == (Quantum *) NULL)
1315 for (x=0; x < (ssize_t) layer_info[i].image->columns; x++)
1317 SetPixelAlpha(layer_info[i].image,(Quantum)
1318 (QuantumScale*(GetPixelAlpha(layer_info[i].image,q))*
1319 layer_info[i].opacity),q);
1320 q+=GetPixelChannels(layer_info[i].image);
1322 if (SyncAuthenticPixels(layer_info[i].image,exception) == MagickFalse)
1326 if (layer_info[i].image->colorspace == CMYKColorspace)
1327 (void) NegateImage(layer_info[i].image,MagickFalse,exception);
1328 status=SetImageProgress(image,LoadImagesTag,i,(MagickSizeType)
1330 if (status == MagickFalse)
1333 /* added by palf -> invisible group layer make layer of this group
1334 invisible I consider that all layer with width and height null are
1335 layer for group layer */
1337 short inside_layer = 0;
1338 short layer_visible = 0;
1339 for (i=number_layers-1; i >=0; i--)
1341 if ((layer_info[i].page.width == 0) ||
1342 (layer_info[i].page.height == 0))
1344 if (inside_layer == 0)
1347 layer_visible=(short int) layer_info[i].visible;
1355 if ((inside_layer == 1) && (layer_visible == 0))
1357 layer_info[i].visible=(unsigned char) layer_visible;
1358 layer_info[i].image->compose=NoCompositeOp;
1362 /* added by palf -> suppression of empty layer */
1363 /* I consider that all layer with width and height null are layer for group layer */
1364 for (i=0; i < number_layers; i++)
1366 if ((layer_info[i].page.width == 0) ||
1367 (layer_info[i].page.height == 0))
1369 if (layer_info[i].image != (Image *) NULL)
1370 layer_info[i].image=DestroyImage(layer_info[i].image);
1371 for (j=i; j < number_layers - 1; j++)
1372 layer_info[j] = layer_info[j+1];
1377 mask_size = ReadBlobMSBLong(image); /* global mask size: currently ignored */
1379 if (number_layers > 0)
1381 if (image->debug != MagickFalse)
1382 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1383 " putting layers into image list");
1384 for (i=0; i < number_layers; i++)
1387 layer_info[i].image->previous=layer_info[i-1].image;
1388 if (i < (number_layers-1))
1389 layer_info[i].image->next=layer_info[i+1].image;
1390 layer_info[i].image->page=layer_info[i].page;
1392 image->next=layer_info[0].image;
1393 layer_info[0].image->previous=image;
1394 layer_info=(LayerInfo *) RelinquishMagickMemory(layer_info);
1396 layer_offset-=TellBlob(image);
1397 offset=SeekBlob(image,layer_offset,SEEK_CUR);
1401 Read the precombined layer, present for PSD < 4 compatibility
1403 if (image->debug != MagickFalse)
1404 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
1405 " reading the precombined layer");
1406 offsets=(MagickOffsetType *) NULL;
1407 image->compression=NoCompression;
1408 compression=ReadBlobMSBShort(image);
1409 if (compression == 1)
1412 Read Packbit encoded pixel data as separate planes.
1414 image->compression=RLECompression;
1415 offsets=(MagickOffsetType *) AcquireQuantumMemory(image->rows,
1416 psd_info.channels*sizeof(*offsets));
1417 if (offsets == (MagickOffsetType *) NULL)
1418 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
1419 for (i=0; i < (ssize_t) (image->rows*psd_info.channels); i++)
1420 offsets[i]=GetPSDOffset(&psd_info,image);
1422 for (i=0; i < (ssize_t) psd_info.channels; i++)
1424 status=ReadPSDLayer(image,psd_info.channels,i,offsets+i*image->rows,
1426 if (status == MagickFalse)
1428 status=SetImageProgress(image,LoadImagesTag,i,psd_info.channels);
1429 if (status == MagickFalse)
1432 if (compression == 1)
1433 offsets=(MagickOffsetType *) RelinquishMagickMemory(offsets);
1434 if (image->colorspace == CMYKColorspace)
1435 (void) NegateImage(image,MagickFalse,exception);
1436 (void) CloseBlob(image);
1437 return(GetFirstImageInList(image));
1441 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1445 % R e g i s t e r P S D I m a g e %
1449 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1451 % RegisterPSDImage() adds properties for the PSD image format to
1452 % the list of supported formats. The properties include the image format
1453 % tag, a method to read and/or write the format, whether the format
1454 % supports the saving of more than one frame to the same file or blob,
1455 % whether the format supports native in-memory I/O, and a brief
1456 % description of the format.
1458 % The format of the RegisterPSDImage method is:
1460 % size_t RegisterPSDImage(void)
1463 ModuleExport size_t RegisterPSDImage(void)
1468 entry=SetMagickInfo("PSB");
1469 entry->decoder=(DecodeImageHandler *) ReadPSDImage;
1470 entry->encoder=(EncodeImageHandler *) WritePSDImage;
1471 entry->magick=(IsImageFormatHandler *) IsPSD;
1472 entry->seekable_stream=MagickTrue;
1473 entry->description=ConstantString("Adobe Large Document Format");
1474 entry->module=ConstantString("PSD");
1475 (void) RegisterMagickInfo(entry);
1476 entry=SetMagickInfo("PSD");
1477 entry->decoder=(DecodeImageHandler *) ReadPSDImage;
1478 entry->encoder=(EncodeImageHandler *) WritePSDImage;
1479 entry->magick=(IsImageFormatHandler *) IsPSD;
1480 entry->seekable_stream=MagickTrue;
1481 entry->description=ConstantString("Adobe Photoshop bitmap");
1482 entry->module=ConstantString("PSD");
1483 (void) RegisterMagickInfo(entry);
1484 return(MagickImageCoderSignature);
1488 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1492 % U n r e g i s t e r P S D I m a g e %
1496 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1498 % UnregisterPSDImage() removes format registrations made by the
1499 % PSD module from the list of supported formats.
1501 % The format of the UnregisterPSDImage method is:
1503 % UnregisterPSDImage(void)
1506 ModuleExport void UnregisterPSDImage(void)
1508 (void) UnregisterMagickInfo("PSB");
1509 (void) UnregisterMagickInfo("PSD");
1513 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1517 % W r i t e P S D I m a g e %
1521 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1523 % WritePSDImage() writes an image in the Adobe Photoshop encoded image format.
1525 % The format of the WritePSDImage method is:
1527 % MagickBooleanType WritePSDImage(const ImageInfo *image_info,
1528 % Image *image,ExceptionInfo *exception)
1530 % A description of each parameter follows.
1532 % o image_info: the image info.
1534 % o image: The image.
1536 % o exception: return any errors or warnings in this structure.
1540 static inline ssize_t SetPSDOffset(const PSDInfo *psd_info,Image *image,
1541 const size_t offset)
1543 if (psd_info->version == 1)
1544 return(WriteBlobMSBShort(image,(unsigned short) offset));
1545 return(WriteBlobMSBLong(image,(unsigned short) offset));
1548 static inline ssize_t SetPSDSize(const PSDInfo *psd_info,Image *image,
1549 const MagickSizeType size)
1551 if (psd_info->version == 1)
1552 return(WriteBlobMSBLong(image,(unsigned int) size));
1553 return(WriteBlobMSBLongLong(image,size));
1556 static size_t PSDPackbitsEncodeImage(Image *image,const size_t length,
1557 const unsigned char *pixels,unsigned char *compact_pixels,
1558 ExceptionInfo *exception)
1567 register unsigned char
1574 Compress pixels with Packbits encoding.
1576 assert(image != (Image *) NULL);
1577 assert(image->signature == MagickSignature);
1578 if (image->debug != MagickFalse)
1579 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1580 assert(pixels != (unsigned char *) NULL);
1581 packbits=(unsigned char *) AcquireQuantumMemory(128UL,sizeof(*packbits));
1582 if (packbits == (unsigned char *) NULL)
1583 ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
1586 for (i=(ssize_t) length; i != 0; )
1593 *q++=(unsigned char) 0;
1600 *q++=(unsigned char) 1;
1608 if ((*pixels == *(pixels+1)) && (*(pixels+1) == *(pixels+2)))
1610 *q++=(unsigned char) ((256-3)+1);
1614 *q++=(unsigned char) 2;
1622 if ((*pixels == *(pixels+1)) && (*(pixels+1) == *(pixels+2)))
1628 while (((ssize_t) count < i) && (*pixels == *(pixels+count)))
1635 *q++=(unsigned char) ((256-count)+1);
1644 while ((*(pixels+count) != *(pixels+count+1)) ||
1645 (*(pixels+count+1) != *(pixels+count+2)))
1647 packbits[count+1]=pixels[count];
1649 if (((ssize_t) count >= (i-3)) || (count >= 127))
1653 *packbits=(unsigned char) (count-1);
1654 for (j=0; j <= (ssize_t) count; j++)
1661 *q++=(unsigned char) 128; /* EOD marker */
1662 packbits=(unsigned char *) RelinquishMagickMemory(packbits);
1663 return((size_t) (q-compact_pixels));
1666 static void WritePackbitsLength(const PSDInfo *psd_info,
1667 const ImageInfo *image_info,Image *image,Image *next_image,
1668 unsigned char *compact_pixels,const QuantumType quantum_type,
1669 ExceptionInfo *exception)
1674 register const Quantum
1687 if (next_image->depth > 8)
1688 next_image->depth=16;
1689 packet_size=next_image->depth > 8UL ? 2UL : 1UL;
1691 quantum_info=AcquireQuantumInfo(image_info,image);
1692 pixels=GetQuantumPixels(quantum_info);
1693 for (y=0; y < (ssize_t) next_image->rows; y++)
1695 p=GetVirtualPixels(next_image,0,y,next_image->columns,1,&image->exception);
1696 if (p == (const Quantum *) NULL)
1698 length=ExportQuantumPixels(next_image,(CacheView *) NULL,quantum_info,
1699 quantum_type,pixels,&image->exception);
1700 length=PSDPackbitsEncodeImage(image,length,pixels,compact_pixels,
1702 (void) SetPSDOffset(psd_info,image,length);
1704 quantum_info=DestroyQuantumInfo(quantum_info);
1707 static void WriteOneChannel(const PSDInfo *psd_info,const ImageInfo *image_info,
1708 Image *image,Image *next_image,unsigned char *compact_pixels,
1709 const QuantumType quantum_type,const MagickBooleanType compression_flag,
1710 ExceptionInfo *exception)
1721 register const Quantum
1735 if ((compression_flag != MagickFalse) &&
1736 (next_image->compression != RLECompression))
1737 (void) WriteBlobMSBShort(image,0);
1738 if (next_image->depth > 8)
1739 next_image->depth=16;
1740 monochrome=IsImageMonochrome(image,&image->exception) && (image->depth == 1)
1741 ? MagickTrue : MagickFalse;
1742 packet_size=next_image->depth > 8UL ? 2UL : 1UL;
1744 quantum_info=AcquireQuantumInfo(image_info,image);
1745 pixels=GetQuantumPixels(quantum_info);
1746 for (y=0; y < (ssize_t) next_image->rows; y++)
1748 p=GetVirtualPixels(next_image,0,y,next_image->columns,1,&image->exception);
1749 if (p == (const Quantum *) NULL)
1751 length=ExportQuantumPixels(next_image,(CacheView *) NULL,quantum_info,
1752 quantum_type,pixels,&image->exception);
1753 if (monochrome != MagickFalse)
1754 for (i=0; i < (ssize_t) length; i++)
1755 pixels[i]=(~pixels[i]);
1756 if (next_image->compression != RLECompression)
1757 (void) WriteBlob(image,length,pixels);
1760 length=PSDPackbitsEncodeImage(image,length,pixels,compact_pixels,
1762 (void) WriteBlob(image,length,compact_pixels);
1765 quantum_info=DestroyQuantumInfo(quantum_info);
1768 static MagickBooleanType WriteImageChannels(const PSDInfo *psd_info,
1769 const ImageInfo *image_info,Image *image,Image *next_image,
1770 const MagickBooleanType separate,ExceptionInfo *exception)
1783 Write uncompressed pixels as separate planes.
1786 packet_size=next_image->depth > 8UL ? 2UL : 1UL;
1787 compact_pixels=(unsigned char *) NULL;
1788 if (next_image->compression == RLECompression)
1790 compact_pixels=(unsigned char *) AcquireQuantumMemory(2*channels*
1791 next_image->columns,packet_size*sizeof(*compact_pixels));
1792 if (compact_pixels == (unsigned char *) NULL)
1793 ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1796 if (IsImageGray(next_image,&next_image->exception) != MagickFalse)
1798 if (next_image->compression == RLECompression)
1801 Packbits compression.
1803 (void) WriteBlobMSBShort(image,1);
1804 WritePackbitsLength(psd_info,image_info,image,next_image,
1805 compact_pixels,GrayQuantum,exception);
1806 if (next_image->matte != MagickFalse)
1807 WritePackbitsLength(psd_info,image_info,image,next_image,
1808 compact_pixels,AlphaQuantum,exception);
1810 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1811 GrayQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1812 MagickFalse,exception);
1813 if (next_image->matte != MagickFalse)
1814 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1815 AlphaQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1816 MagickFalse,exception);
1817 (void) SetImageProgress(image,SaveImagesTag,0,1);
1820 if (next_image->storage_class == PseudoClass)
1822 if (next_image->compression == RLECompression)
1825 Packbits compression.
1827 (void) WriteBlobMSBShort(image,1);
1828 WritePackbitsLength(psd_info,image_info,image,next_image,
1829 compact_pixels,IndexQuantum,exception);
1830 if (next_image->matte != MagickFalse)
1831 WritePackbitsLength(psd_info,image_info,image,next_image,
1832 compact_pixels,AlphaQuantum,exception);
1834 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1835 IndexQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1836 MagickFalse,exception);
1837 if (next_image->matte != MagickFalse)
1838 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1839 AlphaQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1840 MagickFalse,exception);
1841 (void) SetImageProgress(image,SaveImagesTag,0,1);
1845 if (next_image->colorspace == CMYKColorspace)
1846 (void) NegateImage(next_image,MagickFalse,&next_image->exception);
1847 if (next_image->compression == RLECompression)
1850 Packbits compression.
1852 (void) WriteBlobMSBShort(image,1);
1853 WritePackbitsLength(psd_info,image_info,image,next_image,
1854 compact_pixels,RedQuantum,exception);
1855 WritePackbitsLength(psd_info,image_info,image,next_image,
1856 compact_pixels,GreenQuantum,exception);
1857 WritePackbitsLength(psd_info,image_info,image,next_image,
1858 compact_pixels,BlueQuantum,exception);
1859 if (next_image->colorspace == CMYKColorspace)
1860 WritePackbitsLength(psd_info,image_info,image,next_image,
1861 compact_pixels,BlackQuantum,exception);
1862 if (next_image->matte != MagickFalse)
1863 WritePackbitsLength(psd_info,image_info,image,next_image,
1864 compact_pixels,AlphaQuantum,exception);
1866 (void) SetImageProgress(image,SaveImagesTag,0,6);
1867 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1868 RedQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1869 MagickFalse,exception);
1870 (void) SetImageProgress(image,SaveImagesTag,1,6);
1871 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1872 GreenQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1873 MagickFalse,exception);
1874 (void) SetImageProgress(image,SaveImagesTag,2,6);
1875 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1876 BlueQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1877 MagickFalse,exception);
1878 (void) SetImageProgress(image,SaveImagesTag,3,6);
1879 if (next_image->colorspace == CMYKColorspace)
1880 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1881 BlackQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1882 MagickFalse,exception);
1883 (void) SetImageProgress(image,SaveImagesTag,4,6);
1884 if (next_image->matte != MagickFalse)
1885 WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
1886 AlphaQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
1887 MagickFalse,exception);
1888 (void) SetImageProgress(image,SaveImagesTag,5,6);
1889 if (next_image->colorspace == CMYKColorspace)
1890 (void) NegateImage(next_image,MagickFalse,&next_image->exception);
1892 if (next_image->compression == RLECompression)
1893 compact_pixels=(unsigned char *) RelinquishMagickMemory(compact_pixels);
1897 static void WritePascalString(Image* inImage,const char *inString,int inPad)
1908 length=(strlen(inString) > 255UL ) ? 255UL : strlen(inString);
1910 (void) WriteBlobByte(inImage,0);
1913 (void) WriteBlobByte(inImage,(unsigned char) length);
1914 (void) WriteBlob(inImage, length, (const unsigned char *) inString);
1917 if ((length % inPad) == 0)
1919 for (i=0; i < (ssize_t) (inPad-(length % inPad)); i++)
1920 (void) WriteBlobByte(inImage,0);
1923 static void WriteResolutionResourceBlock(Image *image)
1932 x_resolution=65536.0*image->x_resolution+0.5;
1933 y_resolution=65536.0*image->y_resolution+0.5;
1935 if (image->units == PixelsPerCentimeterResolution)
1937 x_resolution=2.54*65536.0*image->x_resolution*0.5;
1938 y_resolution=2.54*65536.0*image->y_resolution+0.5;
1941 (void) WriteBlob(image,4,(const unsigned char *) "8BIM");
1942 (void) WriteBlobMSBShort(image,0x03ED);
1943 (void) WriteBlobMSBShort(image,0);
1944 (void) WriteBlobMSBLong(image,16); /* resource size */
1945 (void) WriteBlobMSBLong(image,(unsigned int) (x_resolution+0.5));
1946 (void) WriteBlobMSBShort(image,units); /* horizontal resolution unit */
1947 (void) WriteBlobMSBShort(image,units); /* width unit */
1948 (void) WriteBlobMSBLong(image,(unsigned int) (y_resolution+0.5));
1949 (void) WriteBlobMSBShort(image,units); /* vertical resolution unit */
1950 (void) WriteBlobMSBShort(image,units); /* height unit */
1953 static void RemoveICCProfileFromResourceBlock(StringInfo *bim_profile)
1955 register const unsigned char
1972 length=GetStringInfoLength(bim_profile);
1975 datum=GetStringInfoDatum(bim_profile);
1976 for (p=datum; (p >= datum) && (p < (datum+length-16)); )
1978 register unsigned char
1981 q=(unsigned char *) p;
1982 if (LocaleNCompare((const char *) p,"8BIM",4) != 0)
1984 p=PushLongPixel(MSBEndian,p,&long_sans);
1985 p=PushShortPixel(MSBEndian,p,&id);
1986 p=PushShortPixel(MSBEndian,p,&short_sans);
1987 p=PushLongPixel(MSBEndian,p,&count);
1988 if (id == 0x0000040f)
1990 (void) CopyMagickMemory(q,q+PSDQuantum(count)+12,length-
1991 (PSDQuantum(count)+12)-(q-datum));
1992 SetStringInfoLength(bim_profile,length-(PSDQuantum(count)+12));
1996 if ((count & 0x01) != 0)
2001 static void RemoveResolutionFromResourceBlock(StringInfo *bim_profile)
2003 register const unsigned char
2020 length=GetStringInfoLength(bim_profile);
2023 datum=GetStringInfoDatum(bim_profile);
2024 for (p=datum; (p >= datum) && (p < (datum+length-16)); )
2026 register unsigned char
2029 q=(unsigned char *) p;
2030 if (LocaleNCompare((const char *) p,"8BIM",4) != 0)
2032 p=PushLongPixel(MSBEndian,p,&long_sans);
2033 p=PushShortPixel(MSBEndian,p,&id);
2034 p=PushShortPixel(MSBEndian,p,&short_sans);
2035 p=PushLongPixel(MSBEndian,p,&count);
2036 if ((id == 0x000003ed) && (PSDQuantum(count) < (ssize_t) (length-12)))
2038 (void) CopyMagickMemory(q,q+PSDQuantum(count)+12,length-
2039 (PSDQuantum(count)+12)-(q-datum));
2040 SetStringInfoLength(bim_profile,length-(PSDQuantum(count)+12));
2044 if ((count & 0x01) != 0)
2049 static MagickBooleanType WritePSDImage(const ImageInfo *image_info,Image *image,
2050 ExceptionInfo *exception)
2079 rounded_layer_info_size;
2090 assert(image_info != (const ImageInfo *) NULL);
2091 assert(image_info->signature == MagickSignature);
2092 assert(image != (Image *) NULL);
2093 assert(image->signature == MagickSignature);
2094 if (image->debug != MagickFalse)
2095 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2096 assert(exception != (ExceptionInfo *) NULL);
2097 assert(exception->signature == MagickSignature);
2098 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
2099 if (status == MagickFalse)
2101 packet_size=(size_t) (image->depth > 8 ? 6 : 3);
2102 if (image->matte != MagickFalse)
2103 packet_size+=image->depth > 8 ? 2 : 1;
2105 if ((LocaleCompare(image_info->magick,"PSB") == 0) ||
2106 (image->columns > 30000) || (image->rows > 30000))
2108 (void) WriteBlob(image,4,(const unsigned char *) "8BPS");
2109 (void) WriteBlobMSBShort(image,psd_info.version); /* version */
2110 for (i=1; i <= 6; i++)
2111 (void) WriteBlobByte(image, 0); /* 6 bytes of reserved */
2112 if (IsImageGray(image,exception) != MagickFalse)
2113 num_channels=(image->matte != MagickFalse ? 2UL : 1UL);
2115 if (image->storage_class == PseudoClass)
2116 num_channels=(image->matte != MagickFalse ? 2UL : 1UL);
2119 if (image->colorspace != CMYKColorspace)
2120 num_channels=(image->matte != MagickFalse ? 4UL : 3UL);
2122 num_channels=(image->matte != MagickFalse ? 5UL : 4UL);
2124 (void) WriteBlobMSBShort(image,(unsigned short) num_channels);
2125 (void) WriteBlobMSBLong(image,(unsigned int) image->rows);
2126 (void) WriteBlobMSBLong(image,(unsigned int) image->columns);
2127 if (IsImageGray(image,exception) != MagickFalse)
2135 monochrome=IsImageMonochrome(image,exception) && (image->depth == 1) ?
2136 MagickTrue : MagickFalse;
2137 (void) WriteBlobMSBShort(image,(unsigned short)
2138 (monochrome != MagickFalse ? 1 : image->depth > 8 ? 16 : 8));
2139 (void) WriteBlobMSBShort(image,(unsigned short)
2140 (monochrome != MagickFalse ? BitmapMode : GrayscaleMode));
2144 (void) WriteBlobMSBShort(image,(unsigned short) (image->storage_class ==
2145 PseudoClass ? 8 : image->depth > 8 ? 16 : 8));
2146 if (((image_info->colorspace != UndefinedColorspace) ||
2147 (image->colorspace != CMYKColorspace)) &&
2148 (image_info->colorspace != CMYKColorspace))
2150 if (IsRGBColorspace(image->colorspace) == MagickFalse)
2151 (void) TransformImageColorspace(image,RGBColorspace);
2152 (void) WriteBlobMSBShort(image,(unsigned short)
2153 (image->storage_class == PseudoClass ? IndexedMode : RGBMode));
2157 if (image->colorspace != CMYKColorspace)
2158 (void) TransformImageColorspace(image,CMYKColorspace);
2159 (void) WriteBlobMSBShort(image,CMYKMode);
2162 if ((IsImageGray(image,exception) != MagickFalse) ||
2163 (image->storage_class == DirectClass) || (image->colors > 256))
2164 (void) WriteBlobMSBLong(image,0);
2168 Write PSD raster colormap.
2170 (void) WriteBlobMSBLong(image,768);
2171 for (i=0; i < (ssize_t) image->colors; i++)
2172 (void) WriteBlobByte(image,ScaleQuantumToChar(image->colormap[i].red));
2173 for ( ; i < 256; i++)
2174 (void) WriteBlobByte(image,0);
2175 for (i=0; i < (ssize_t) image->colors; i++)
2176 (void) WriteBlobByte(image,ScaleQuantumToChar(
2177 image->colormap[i].green));
2178 for ( ; i < 256; i++)
2179 (void) WriteBlobByte(image,0);
2180 for (i=0; i < (ssize_t) image->colors; i++)
2181 (void) WriteBlobByte(image,ScaleQuantumToChar(image->colormap[i].blue));
2182 for ( ; i < 256; i++)
2183 (void) WriteBlobByte(image,0);
2186 Image resource block.
2188 length=28; /* 0x03EB */
2189 bim_profile=(StringInfo *) GetImageProfile(image,"8bim");
2190 icc_profile=GetImageProfile(image,"icc");
2191 if (bim_profile != (StringInfo *) NULL)
2193 bim_profile=CloneStringInfo(bim_profile);
2194 if (icc_profile != (StringInfo *) NULL)
2195 RemoveICCProfileFromResourceBlock(bim_profile);
2196 RemoveResolutionFromResourceBlock(bim_profile);
2197 length+=PSDQuantum(GetStringInfoLength(bim_profile));
2199 if (icc_profile != (const StringInfo *) NULL)
2200 length+=PSDQuantum(GetStringInfoLength(icc_profile))+12;
2201 (void) WriteBlobMSBLong(image,(unsigned int) length);
2202 WriteResolutionResourceBlock(image);
2203 if (bim_profile != (StringInfo *) NULL)
2205 (void) WriteBlob(image,GetStringInfoLength(bim_profile),
2206 GetStringInfoDatum(bim_profile));
2207 bim_profile=DestroyStringInfo(bim_profile);
2209 if (icc_profile != (StringInfo *) NULL)
2211 (void) WriteBlob(image,4,(const unsigned char *) "8BIM");
2212 (void) WriteBlobMSBShort(image,0x0000040F);
2213 (void) WriteBlobMSBShort(image,0);
2214 (void) WriteBlobMSBLong(image,(unsigned int) GetStringInfoLength(
2216 (void) WriteBlob(image,GetStringInfoLength(icc_profile),
2217 GetStringInfoDatum(icc_profile));
2218 if ((MagickOffsetType) GetStringInfoLength(icc_profile) !=
2219 PSDQuantum(GetStringInfoLength(icc_profile)))
2220 (void) WriteBlobByte(image,0);
2224 base_image=GetNextImageInList(image);
2225 if ((image->matte != MagickFalse) && (base_image == (Image *) NULL))
2227 next_image=base_image;
2228 while ( next_image != NULL )
2230 packet_size=next_image->depth > 8 ? 2UL : 1UL;
2231 if (IsImageGray(next_image,exception) != MagickFalse)
2232 num_channels=next_image->matte != MagickFalse ? 2UL : 1UL;
2234 if (next_image->storage_class == PseudoClass)
2235 num_channels=next_image->matte != MagickFalse ? 2UL : 1UL;
2237 if (next_image->colorspace != CMYKColorspace)
2238 num_channels=next_image->matte != MagickFalse ? 4UL : 3UL;
2240 num_channels=next_image->matte != MagickFalse ? 5UL : 4UL;
2241 channelLength=(size_t) (next_image->columns*next_image->rows*packet_size+2);
2242 layer_info_size+=(size_t) (4*4+2+num_channels*6+(psd_info.version == 1 ? 8 :
2243 16)+4*1+4+num_channels*channelLength);
2244 property=(const char *) GetImageProperty(next_image,"label");
2245 if (property == (const char *) NULL)
2246 layer_info_size+=16;
2252 length=strlen(property);
2253 layer_info_size+=8+length+(4-(length % 4));
2256 next_image=GetNextImageInList(next_image);
2258 if (layer_count == 0)
2259 (void) SetPSDSize(&psd_info,image,0);
2265 (void) SetPSDSize(&psd_info,image,layer_info_size+
2266 (psd_info.version == 1 ? 8 : 16));
2267 if ((layer_info_size/2) != ((layer_info_size+1)/2))
2268 rounded_layer_info_size=layer_info_size+1;
2270 rounded_layer_info_size=layer_info_size;
2271 (void) SetPSDSize(&psd_info,image,rounded_layer_info_size);
2272 (void) WriteBlobMSBShort(image,(unsigned short) layer_count);
2274 compression=base_image->compression;
2275 next_image=base_image;
2276 while (next_image != NULL)
2278 next_image->compression=NoCompression;
2279 (void) WriteBlobMSBLong(image,0);
2280 (void) WriteBlobMSBLong(image,0);
2281 (void) WriteBlobMSBLong(image,(unsigned int) next_image->rows);
2282 (void) WriteBlobMSBLong(image,(unsigned int) next_image->columns);
2283 packet_size=next_image->depth > 8 ? 2UL : 1UL;
2284 channel_size=(unsigned int) ((packet_size*next_image->rows*
2285 next_image->columns)+2);
2286 if ((IsImageGray(next_image,exception) != MagickFalse) ||
2287 (next_image->storage_class == PseudoClass))
2289 (void) WriteBlobMSBShort(image,(unsigned short)
2290 (next_image->matte != MagickFalse ? 2 : 1));
2291 (void) WriteBlobMSBShort(image,0);
2292 (void) SetPSDSize(&psd_info,image,channel_size);
2293 if (next_image->matte != MagickFalse)
2295 (void) WriteBlobMSBShort(image,(unsigned short) -1);
2296 (void) SetPSDSize(&psd_info,image,channel_size);
2300 if (next_image->colorspace != CMYKColorspace)
2302 (void) WriteBlobMSBShort(image,(unsigned short)
2303 (next_image->matte != MagickFalse ? 4 : 3));
2304 (void) WriteBlobMSBShort(image,0);
2305 (void) SetPSDSize(&psd_info,image,channel_size);
2306 (void) WriteBlobMSBShort(image,1);
2307 (void) SetPSDSize(&psd_info,image,channel_size);
2308 (void) WriteBlobMSBShort(image,2);
2309 (void) SetPSDSize(&psd_info,image,channel_size);
2310 if (next_image->matte!= MagickFalse )
2312 (void) WriteBlobMSBShort(image,(unsigned short) -1);
2313 (void) SetPSDSize(&psd_info,image,channel_size);
2318 (void) WriteBlobMSBShort(image,(unsigned short)
2319 (next_image->matte ? 5 : 4));
2320 (void) WriteBlobMSBShort(image,0);
2321 (void) SetPSDSize(&psd_info,image,channel_size);
2322 (void) WriteBlobMSBShort(image,1);
2323 (void) SetPSDSize(&psd_info,image,channel_size);
2324 (void) WriteBlobMSBShort(image,2);
2325 (void) SetPSDSize(&psd_info,image,channel_size);
2326 (void) WriteBlobMSBShort(image,3);
2327 (void) SetPSDSize(&psd_info,image,channel_size);
2328 if (next_image->matte)
2330 (void) WriteBlobMSBShort(image,(unsigned short) -1);
2331 (void) SetPSDSize(&psd_info,image,channel_size);
2334 (void) WriteBlob(image,4,(const unsigned char *) "8BIM");
2335 (void) WriteBlob(image,4,(const unsigned char *)
2336 CompositeOperatorToPSDBlendMode(next_image->compose));
2337 (void) WriteBlobByte(image,255); /* layer opacity */
2338 (void) WriteBlobByte(image,0);
2339 (void) WriteBlobByte(image,1); /* layer propertys - visible, etc. */
2340 (void) WriteBlobByte(image,0);
2341 property=(const char *) GetImageProperty(next_image,"label");
2342 if (property == (const char *) NULL)
2344 (void) WriteBlobMSBLong(image,16);
2345 (void) WriteBlobMSBLong(image,0);
2346 (void) WriteBlobMSBLong(image,0);
2347 (void) FormatLocaleString((char *) layer_name,MaxTextExtent,
2348 "L%06ld",(long) layer_count++);
2349 WritePascalString( image, (char*)layer_name, 4 );
2356 length=strlen(property);
2357 (void) WriteBlobMSBLong(image,(unsigned int) (length+(4-
2359 (void) WriteBlobMSBLong(image,0);
2360 (void) WriteBlobMSBLong(image,0);
2361 WritePascalString(image,property,4);
2363 next_image=GetNextImageInList(next_image);
2368 next_image=base_image;
2369 while (next_image != NULL)
2371 status=WriteImageChannels(&psd_info,image_info,image,next_image,
2372 MagickTrue,exception);
2373 next_image=GetNextImageInList(next_image);
2375 (void) WriteBlobMSBLong(image,0); /* user mask data */
2376 base_image->compression=compression;
2379 Write composite image.
2381 status=WriteImageChannels(&psd_info,image_info,image,image,MagickFalse,
2383 (void) CloseBlob(image);