/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % PPPP SSSSS DDDD % % P P SS D D % % PPPP SSS D D % % P SS D D % % P SSSSS DDDD % % % % % % Read/Write Adobe Photoshop Image Format. % % % % Software Design % % John Cristy % % Leonard Rosenthol % % July 1992 % % % % % % Copyright 1999-2007 ImageMagick Studio LLC, a non-profit organization % % dedicated to making software imaging solutions freely available. % % % % You may not use this file except in compliance with the License. You may % % obtain a copy of the License at % % % % http://www.imagemagick.org/script/license.php % % % % Unless required by applicable law or agreed to in writing, software % % distributed under the License is distributed on an "AS IS" BASIS, % % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % % See the License for the specific language governing permissions and % % limitations under the License. % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % */ /* Include declarations. */ #include "magick/studio.h" #include "magick/artifact.h" #include "magick/blob.h" #include "magick/blob-private.h" #include "magick/colorspace.h" #include "magick/constitute.h" #include "magick/enhance.h" #include "magick/exception.h" #include "magick/exception-private.h" #include "magick/image.h" #include "magick/image-private.h" #include "magick/list.h" #include "magick/log.h" #include "magick/magick.h" #include "magick/memory_.h" #include "magick/module.h" #include "magick/profile.h" #include "magick/property.h" #include "magick/quantum-private.h" #include "magick/static.h" #include "magick/string_.h" /* Forward declarations. */ static MagickBooleanType WritePSDImage(const ImageInfo *,Image *); /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % D e c o d e I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % DecodeImage uncompresses an image via Macintosh encoding specific to % the Adobe Photoshop image format. % % The format of the DecodeImage method is: % % MagickBooleanType DecodeImage(Image *image,const long channel) % % A description of each parameter follows: % % o image,image: The address of a structure of type Image. % % o channel: Specifies which channel: red, green, blue, or index to % decode the pixel values into. % */ static MagickBooleanType DecodeImage(Image *image,const long channel) { MagickOffsetType number_pixels; Quantum pixel; register IndexPacket *indexes; register long i, x; register PixelPacket *q; ssize_t count; number_pixels=(MagickOffsetType) image->columns*image->rows; for (x=0; number_pixels > 0; ) { count=(ssize_t) ReadBlobByte(image); if (count >= 128) count-=256; if (count < 0) { if (count == -128) continue; pixel=ScaleCharToQuantum((unsigned char) ReadBlobByte(image)); for (count=(-count+1); count > 0; count--) { q=GetImagePixels(image,(long) (x % image->columns), (long) (x/image->columns),1,1); if (q == (PixelPacket *) NULL) break; indexes=GetIndexes(image); switch (channel) { case -1: { q->opacity=(Quantum) (QuantumRange-pixel); break; } case 0: { q->red=pixel; if (image->storage_class == PseudoClass) { *indexes=(IndexPacket) ScaleQuantumToChar(pixel); q->red=image->colormap[(long) *indexes].red; q->green=image->colormap[(long) *indexes].green; q->blue=image->colormap[(long) *indexes].blue; } break; } case 1: { if (image->storage_class == PseudoClass) q->opacity=(Quantum) (QuantumRange-pixel); else q->green=pixel; break; } case 2: { q->blue=pixel; break; } case 3: { if (image->colorspace == CMYKColorspace) *indexes=(IndexPacket) pixel; else q->opacity=(Quantum) (QuantumRange-pixel); break; } case 4: { q->opacity=(Quantum) pixel; break; } default: break; } if (SyncImagePixels(image) == MagickFalse) break; x++; number_pixels--; } continue; } count++; for (i=(long) count; i > 0; i--) { pixel=ScaleCharToQuantum((unsigned char) ReadBlobByte(image)); q=GetImagePixels(image,(long) (x % image->columns), (long) (x/image->columns),1,1); if (q == (PixelPacket *) NULL) break; indexes=GetIndexes(image); switch (channel) { case -1: { q->opacity=(Quantum) (QuantumRange-pixel); break; } case 0: { q->red=pixel; if (image->storage_class == PseudoClass) { *indexes=(IndexPacket) ScaleQuantumToChar(pixel); q->red=image->colormap[(long) *indexes].red; q->green=image->colormap[(long) *indexes].green; q->blue=image->colormap[(long) *indexes].blue; } break; } case 1: { if (image->storage_class == PseudoClass) q->opacity=(Quantum) (QuantumRange-pixel); else q->green=pixel; break; } case 2: { q->blue=pixel; break; } case 3: { if (image->colorspace == CMYKColorspace) *indexes=(IndexPacket) pixel; else q->opacity=(Quantum) (QuantumRange-pixel); break; } case 4: { q->opacity=(Quantum) pixel; break; } default: break; } if (SyncImagePixels(image) == MagickFalse) break; x++; number_pixels--; } } /* Guarentee the correct number of pixel packets. */ if (number_pixels > 0) ThrowBinaryException(CorruptImageError,"InsufficientImageDataInFile", image->filename) else if (number_pixels < 0) ThrowBinaryException(CorruptImageError,"TooMuchImageDataInFile", image->filename); return(MagickTrue); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % I s P S D % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % IsPSD()() returns MagickTrue if the image format type, identified by the % magick string, is PSD. % % The format of the IsPSD method is: % % MagickBooleanType IsPSD(const unsigned char *magick,const size_t length) % % A description of each parameter follows: % % o magick: This string is generally the first few bytes of an image file % or blob. % % o length: Specifies the length of the magick string. % % */ static MagickBooleanType IsPSD(const unsigned char *magick,const size_t length) { if (length < 4) return(MagickFalse); if (LocaleNCompare((char *) magick,"8BPS",4) == 0) return(MagickTrue); return(MagickFalse); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d P S D I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadPSDImage() reads an Adobe Photoshop image file and returns it. It % allocates the memory necessary for the new Image structure and returns a % pointer to the new image. % % The format of the ReadPSDImage method is: % % image=ReadPSDImage(image_info) % % A description of each parameter follows: % % o image_info: The image info. % % o exception: return any errors or warnings in this structure. % */ static inline long MagickAbsoluteValue(const long x) { if (x < 0) return(-x); return(x); } static CompositeOperator PSDBlendModeToCompositeOperator(const char *mode) { if (mode == (const char *) NULL) return(OverCompositeOp); if (LocaleNCompare(mode,"norm",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"mul ",4) == 0) return(MultiplyCompositeOp); if (LocaleNCompare(mode,"diss",4) == 0) return(DissolveCompositeOp); if (LocaleNCompare(mode,"diff",4) == 0) return(DifferenceCompositeOp); if (LocaleNCompare(mode,"dark",4) == 0) return(DarkenCompositeOp); if (LocaleNCompare(mode,"lite",4) == 0) return(LightenCompositeOp); if (LocaleNCompare(mode,"hue ",4) == 0) return(HueCompositeOp); if (LocaleNCompare(mode,"sat ",4) == 0) return(SaturateCompositeOp); if (LocaleNCompare(mode,"colr",4) == 0) return(ColorizeCompositeOp); if (LocaleNCompare(mode,"lum ",4) == 0) return(LuminizeCompositeOp); if (LocaleNCompare(mode,"scrn",4) == 0) return(ScreenCompositeOp); if (LocaleNCompare(mode,"over",4) == 0) return(OverlayCompositeOp); if (LocaleNCompare(mode,"hLit",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"sLit",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"smud",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"div ",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"idiv",4) == 0) return(OverCompositeOp); return(OverCompositeOp); } static const char *CompositeOperatorToPSDBlendMode(CompositeOperator inOp) { const char *outMode = "norm"; switch (inOp) { case OverCompositeOp: outMode = "norm"; break; case MultiplyCompositeOp: outMode = "mul "; break; case DissolveCompositeOp: outMode = "diss"; break; case DifferenceCompositeOp: outMode = "diff"; break; case DarkenCompositeOp: outMode = "dark"; break; case LightenCompositeOp: outMode = "lite"; break; case HueCompositeOp: outMode = "hue "; break; case SaturateCompositeOp: outMode = "sat "; break; case ColorizeCompositeOp: outMode = "colr"; break; case LuminizeCompositeOp: outMode = "lum "; break; case ScreenCompositeOp: outMode = "scrn"; break; case OverlayCompositeOp: outMode = "over"; break; default: outMode = "norm"; /* if (LocaleNCompare(mode,"hLit",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"sLit",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"smud",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"div ",4) == 0) return(OverCompositeOp); if (LocaleNCompare(mode,"idiv",4) == 0) return(OverCompositeOp); */ } return(outMode); } typedef enum { BitmapMode = 0, GrayscaleMode = 1, IndexedMode = 2, RGBMode = 3, CMYKMode = 4, MultichannelMode = 7, DuotoneMode = 8, LabMode = 9 } PSDImageType; static const char *ModeToString( PSDImageType inType ) { switch ( inType ) { case BitmapMode: return "Bitmap"; case GrayscaleMode: return "Grayscale"; case IndexedMode: return "Indexed"; case RGBMode: return "RGB"; case CMYKMode: return "CMYK"; case MultichannelMode: return "Multichannel"; case DuotoneMode: return "Duotone"; case LabMode: return "L*A*B"; default: return "unknown"; } } static MagickBooleanType ParseImageResourceBlocks(const ImageInfo *image_info, Image *image,const unsigned char *blocks,size_t length) { const unsigned char *p; QuantumInfo quantum_info; QuantumState quantum_state; StringInfo *profile; unsigned long count, id, sans; if (length < 16) return(MagickFalse); GetQuantumInfo(image_info,&quantum_info); InitializeQuantumState(&quantum_info,LSBEndian,&quantum_state); profile=AcquireStringInfo(length); SetStringInfoDatum(profile,blocks); (void) SetImageProfile(image,"iptc",profile); profile=DestroyStringInfo(profile); for (p=blocks; (p >= blocks) && (p < (blocks+length-16)); ) { if (LocaleNCompare((char *) p,"8BIM",4) != 0) break; sans=PushLongPixel(&quantum_state,&p); id=PushShortPixel(&quantum_state,&p); sans=PushShortPixel(&quantum_state,&p); count=PushLongPixel(&quantum_state,&p); switch (id) { case 0x03ed: { unsigned long resolution; /* Resolution info. */ resolution=PushShortPixel(&quantum_state,&p); image->x_resolution=(double) resolution; sans=PushShortPixel(&quantum_state,&p); sans=PushShortPixel(&quantum_state,&p); sans=PushShortPixel(&quantum_state,&p); resolution=PushShortPixel(&quantum_state,&p); image->y_resolution=(double) resolution; sans=PushShortPixel(&quantum_state,&p); sans=PushShortPixel(&quantum_state,&p); sans=PushShortPixel(&quantum_state,&p); break; } default: { p+=count; break; } } if ((count & 0x01) != 0) p++; } return(MagickTrue); } static Image *ReadPSDImage(const ImageInfo *image_info,ExceptionInfo *exception) { #define MaxPSDChannels 24 typedef struct _ChannelInfo { short int type; unsigned long size; } ChannelInfo; typedef struct _LayerInfo { RectangleInfo page, mask; unsigned short channels; ChannelInfo channel_info[MaxPSDChannels]; char blendkey[4]; Quantum opacity; unsigned char clipping, visible, flags; unsigned long offset_x, offset_y; unsigned char name[256]; Image *image; } LayerInfo; typedef struct _PSDInfo { char signature[4]; unsigned short channels, version; unsigned char reserved[6]; unsigned long rows, columns; unsigned short depth, mode; } PSDInfo; char s[MaxTextExtent], type[4]; Image *image; IndexPacket *indexes; LayerInfo *layer_info; long j, number_layers, y; PSDInfo psd_info; register long x; register PixelPacket *q; register long i; size_t length, combinedlength, size; ssize_t count; MagickBooleanType status; MagickOffsetType offset; size_t packet_size; unsigned char *data; unsigned short compression; unsigned long mask_size, pixel, skip_first_alpha = 0; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); image=AllocateImage(image_info); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) { image=DestroyImageList(image); return((Image *) NULL); } /* Read image header. */ count=ReadBlob(image,4,(unsigned char *) psd_info.signature); psd_info.version=ReadBlobMSBShort(image); if ((count == 0) || (LocaleNCompare(psd_info.signature,"8BPS",4) != 0) || (psd_info.version != 1)) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); count=ReadBlob(image,6,psd_info.reserved); psd_info.channels=ReadBlobMSBShort(image); if (psd_info.channels > MaxPSDChannels) ThrowReaderException(CorruptImageError,"MaximumChannelsExceeded"); psd_info.rows=ReadBlobMSBLong(image); psd_info.columns=ReadBlobMSBLong(image); psd_info.depth=ReadBlobMSBShort(image); psd_info.mode=ReadBlobMSBShort(image); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " Image is %ld x %ld with channels=%d, depth=%d, mode=%s", psd_info.columns,psd_info.rows,psd_info.channels,psd_info.depth, ModeToString((PSDImageType) psd_info.mode)); /* Initialize image. */ image->depth=psd_info.depth; image->columns=psd_info.columns; image->rows=psd_info.rows; (void) SetImageBackgroundColor(image); image->matte=psd_info.channels >= 4 ? MagickTrue : MagickFalse; if (psd_info.mode == LabMode) image->colorspace=LabColorspace; if (psd_info.mode == CMYKMode) { image->colorspace=CMYKColorspace; image->matte=psd_info.channels >= 5 ? MagickTrue : MagickFalse; } if ((psd_info.mode == BitmapMode) || (psd_info.mode == GrayscaleMode) || (psd_info.mode == DuotoneMode)) { if (AllocateImageColormap(image,256) == MagickFalse) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); image->matte=psd_info.channels >= 2 ? MagickTrue : MagickFalse; if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " ImageColorMap allocated"); } if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), image->matte ? " image has matte" : " image has no matte"); /* Read PSD raster colormap only present for indexed and duotone images. */ length=ReadBlobMSBLong(image); if (length != 0) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " reading colormap"); if (psd_info.mode == DuotoneMode) { /* Duotone image data; the format of this data is undocumented. */ data=(unsigned char *) AcquireQuantumMemory(length,sizeof(*data)); if (data == (unsigned char *) NULL) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); count=ReadBlob(image,length,data); data=(unsigned char *) RelinquishMagickMemory(data); } else { /* Read PSD raster colormap. */ if (AllocateImageColormap(image,(unsigned long) (length/3)) == MagickFalse) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); for (i=0; i < (long) image->colors; i++) image->colormap[i].red=ScaleCharToQuantum((unsigned char) ReadBlobByte(image)); for (i=0; i < (long) image->colors; i++) image->colormap[i].green=ScaleCharToQuantum((unsigned char) ReadBlobByte(image)); for (i=0; i < (long) image->colors; i++) image->colormap[i].blue=ScaleCharToQuantum((unsigned char) ReadBlobByte(image)); image->matte=psd_info.channels >= 2 ? MagickTrue : MagickFalse; } } length=ReadBlobMSBLong(image); if (length != 0) { unsigned char *blocks; /* Image resources block. */ if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " reading image resource blocks - %ld bytes",(long) length); blocks=(unsigned char *) AcquireQuantumMemory(length,sizeof(*blocks)); if (blocks == (unsigned char *) NULL) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); count=ReadBlob(image,length,blocks); if (((size_t) count != length) || (LocaleNCompare((char *) blocks,"8BIM",4) != 0)) { blocks=(unsigned char *) RelinquishMagickMemory(blocks); ThrowReaderException(CorruptImageError,"ImproperImageHeader"); } (void) ParseImageResourceBlocks(image_info,image,blocks,length); blocks=(unsigned char *) RelinquishMagickMemory(blocks); } /* If we are only "pinging" the image, then we're done - so return. */ if (image_info->ping != MagickFalse) { CloseBlob(image); return(GetFirstImageInList(image)); } if (SetImageExtent(image,0,0) == MagickFalse) { InheritException(exception,&image->exception); return(DestroyImageList(image)); } /* Layer and mask block. */ layer_info=(LayerInfo *) NULL; number_layers=0; length=ReadBlobMSBLong(image); if (length == 8) { length=ReadBlobMSBLong(image); length=ReadBlobMSBLong(image); } if (length == 0) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " image has no layers"); } else { offset=TellBlob(image); size=ReadBlobMSBLong(image); if (size == 0) { /* Skip layers & masks. */ for (j=0; j < (long) (length-4); j++) (void) ReadBlobByte(image); } else { MagickOffsetType layer_offset; layer_offset=offset+length; number_layers=(short) ReadBlobMSBShort(image); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " image contains %ld layers", number_layers); if (number_layers < 0) { /* Weird hack in PSD format to ignore first alpha channel. */ skip_first_alpha=1; number_layers=MagickAbsoluteValue(number_layers); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " negative layer count corrected for"); } layer_info=(LayerInfo *) AcquireQuantumMemory((size_t) number_layers, sizeof(*layer_info)); if (layer_info == (LayerInfo *) NULL) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " allocation of LayerInfo failed"); ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); } (void) ResetMagickMemory(layer_info,0,(size_t) number_layers* sizeof(*layer_info)); for (i=0; i < number_layers; i++) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " reading layer #%ld",i+1); layer_info[i].page.y=(long) ReadBlobMSBLong(image); layer_info[i].page.x=(long) ReadBlobMSBLong(image); layer_info[i].page.height=ReadBlobMSBLong(image)-layer_info[i].page.y; layer_info[i].page.width=ReadBlobMSBLong(image)-layer_info[i].page.x; layer_info[i].channels=ReadBlobMSBShort(image); if (layer_info[i].channels > MaxPSDChannels) ThrowReaderException(CorruptImageError,"MaximumChannelsExceeded"); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " offset(%ld,%ld), size(%ld,%ld), channels=%d", layer_info[i].page.x, layer_info[i].page.y, layer_info[i].page.height,layer_info[i].page.width, layer_info[i].channels); for (j=0; j < (long) layer_info[i].channels; j++) { layer_info[i].channel_info[j].type=(short) ReadBlobMSBShort(image); layer_info[i].channel_info[j].size=ReadBlobMSBLong(image); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " channel[%ld]: type=%d, size=%ld",j, layer_info[i].channel_info[j].type, (long) layer_info[i].channel_info[j].size); } count=ReadBlob(image,4,(unsigned char *) type); if ((count == 0) || (LocaleNCompare(type,"8BIM",4) != 0)) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " layer type was %.4s instead of 8BIM", type); ThrowReaderException(CorruptImageError,"ImproperImageHeader"); } count=ReadBlob(image,4,(unsigned char *) layer_info[i].blendkey); layer_info[i].opacity=(Quantum) (QuantumRange-ScaleCharToQuantum( (unsigned char) ReadBlobByte(image))); layer_info[i].clipping=(unsigned char) ReadBlobByte(image); layer_info[i].flags=(unsigned char) ReadBlobByte(image); layer_info[i].visible=!(layer_info[i].flags & 0x02); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " blend=%.4s, opacity=%lu, clipping=%s, flags=%d, visible=%s", layer_info[i].blendkey,(unsigned long) layer_info[i].opacity, layer_info[i].clipping ? "true" : "false",layer_info[i].flags, layer_info[i].visible ? "true" : "false"); (void) ReadBlobByte(image); /* filler */ combinedlength=0; size=ReadBlobMSBLong(image); if (size != 0) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " layer contains additional info"); length=ReadBlobMSBLong(image); if (length != 0) { /* Layer mask info. */ layer_info[i].mask.y=(long) ReadBlobMSBLong(image); layer_info[i].mask.x=(long) ReadBlobMSBLong(image); layer_info[i].mask.height= (ReadBlobMSBLong(image)-layer_info[i].mask.y); layer_info[i].mask.width= (ReadBlobMSBLong(image)-layer_info[i].mask.x); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " layer mask: offset(%ld,%ld), size(%ld,%ld), length=%ld", layer_info[i].mask.x,layer_info[i].mask.y, layer_info[i].mask.width, layer_info[i].mask.height, (long) length-16); /* Skip over the rest of the layer mask information. */ for (j=0; j < (long) (length-16); j++) (void) ReadBlobByte(image); } combinedlength+=length+4; /* +4 for length */ length=ReadBlobMSBLong(image); if (length != 0) { /* Layer blending ranges info. */ if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " layer blending ranges: length=%ld",(long) length); /* We read it, but don't use it... */ for (j=0; j < (long) (length); j+=8) { size_t blend_source=ReadBlobMSBLong(image); size_t blend_dest=ReadBlobMSBLong(image); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " source(%x), dest(%x)",(unsigned int) blend_source,(unsigned int) blend_dest); } } combinedlength+=length + 4; /* +4 for length */ length=(size_t) ReadBlobByte(image); if (length != 0) { /* Layer name. */ for (j=0; j < (long) (length); j++) layer_info[i].name[j]=(unsigned char) ReadBlobByte(image); layer_info[i].name[j]='\0'; if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " layer name: %s",layer_info[i].name); } #if 0 if ( length == 0 ) padBytes = 3; else padBytes = (4 - (length % 4)); if ( padBytes != 0 ) { /* we need to pad */ for ( i=0; i < padBytes; i++) (void) ReadBlobByte(image); } combinedlength += length + padBytes + 1; /* +1 for length */ #else combinedlength+=length + 1; /* +1 for length */ #endif #if 0 /* still in development */ /* Adjustment layers and other stuff... */ { char alsig[4], alkey[4]; count=ReadBlob(image,4,alsig); if ((count == 0) || (LocaleNCompare(alsig,"8BIM",4) != 0)) { if (debug != MagickFalse) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule()," adjustment layer type was %.4s instead of 8BIM", alsig); } ThrowReaderException(CorruptImageError,"ImproperImageHeader"); } count=ReadBlob(image,4,alkey); length=ReadBlobMSBLong(image); if (debug != MagickFalse) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " adjustment layer key: %.4s, data length=%ld", alkey, length); } if ( length ) { for (j=0; j < (long) (length); j++) (void) ReadBlobByte(image); } } combinedlength += 12 + length; /* sig, key, length + the actual length*/ #endif /* Skip the rest of the variable data until we support it. */ if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " unsupported data: length=%ld",(long) size-combinedlength); for (j=0; j < (long) (size-combinedlength); j++) (void) ReadBlobByte(image); } /* Allocate layered image. */ layer_info[i].image=CloneImage(image,layer_info[i].page.width, layer_info[i].page.height,MagickTrue,&image->exception); if (layer_info[i].image == (Image *) NULL) { for (j=0; j < i; j++) layer_info[j].image=DestroyImage(layer_info[j].image); if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " allocation of image for layer %ld failed", i); ThrowReaderException(ResourceLimitError, "MemoryAllocationFailed"); } if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " setting up new layer image"); (void) SetImageBackgroundColor(layer_info[i].image); layer_info[i].image->compose= PSDBlendModeToCompositeOperator(layer_info[i].blendkey); if (layer_info[i].visible == MagickFalse) layer_info[i].image->compose=NoCompositeOp; if (psd_info.mode == CMYKMode) layer_info[i].image->colorspace=CMYKColorspace; for (j=0; j < (long) layer_info[i].channels; j++) if (layer_info[i].channel_info[j].type == -1) layer_info[i].image->matte=MagickTrue; /* Set up some hidden attributes for folks that need them. */ (void) FormatMagickString(s,MaxTextExtent,"%ld", layer_info[i].page.x ); (void) SetImageArtifact(layer_info[i].image,"layer-xpos",s); (void) FormatMagickString(s,MaxTextExtent,"%ld", layer_info[i].page.y); (void) SetImageArtifact(layer_info[i].image,"layer-ypos",s); (void) FormatMagickString(s,MaxTextExtent,"%lu",(unsigned long) layer_info[i].opacity ); (void) SetImageArtifact(layer_info[i].image,"layer-opacity",s); (void) SetImageProperty(layer_info[i].image,"label",(char *) layer_info[i].name); } if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " reading image data for layers"); /* Read pixel data for each layer. */ for (i=0; i < number_layers; i++) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " reading data for layer %ld",i); for (j=0; j < (long) layer_info[i].channels; j++) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " reading data for channel %ld", j); #if 1 if (layer_info[i].channel_info[j].size <= (2*layer_info[i].image->rows)) { long k; if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " layer data is empty"); /* A layer without data. */ for (k=0; k < (long) layer_info[i].channel_info[j].size; k++) (void) ReadBlobByte(layer_info[i].image); continue; } #endif compression=ReadBlobMSBShort(layer_info[i].image); if (compression == 1) { /* Read RLE compressed data. */ if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " layer data is RLE compressed"); for (y=0; y < (long) layer_info[i].image->rows; y++) (void) ReadBlobMSBShort(layer_info[i].image); (void) DecodeImage(layer_info[i].image, layer_info[i].channel_info[j].type); continue; } /* Read uncompressed pixel data as separate planes. */ if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " layer data is uncompressed"); packet_size=1; if (layer_info[i].image->storage_class == PseudoClass) { if (layer_info[i].image->colors > 256) packet_size++; } else if (layer_info[i].image->depth > 8) packet_size++; for (y=0; y < (long) layer_info[i].image->rows; y++) { q=GetImagePixels(layer_info[i].image,0,y, layer_info[i].image->columns,1); if (q == (PixelPacket *) NULL) break; indexes=GetIndexes(layer_info[i].image); for (x=0; x < (long) layer_info[i].image->columns; x++) { if (packet_size == 1) pixel=(unsigned long) ScaleCharToQuantum((unsigned char) ReadBlobByte(layer_info[i].image)); else pixel=(unsigned long) ScaleShortToQuantum(ReadBlobMSBShort( layer_info[i].image)); switch (layer_info[i].channel_info[j].type) { case -1: /* transparency mask */ { q->opacity=(Quantum) (QuantumRange-pixel); break; } case 0: /* first component (Red, Cyan, Gray or Index) */ { q->red=(Quantum) pixel; if (layer_info[i].image->storage_class == PseudoClass) { if (packet_size == 1) indexes[x]=(IndexPacket) ScaleQuantumToChar( (Quantum) pixel); else indexes[x]=(IndexPacket) ScaleQuantumToShort( (Quantum) pixel); q->red=layer_info[i].image->colormap[(long) *indexes].red; q->green=layer_info[i].image->colormap[(long) *indexes].green; q->blue=layer_info[i].image->colormap[(long) *indexes].blue; } break; } case 1: /* second component (Green, Magenta, or opacity) */ { if (layer_info[i].image->storage_class == PseudoClass) q->opacity=(Quantum) (QuantumRange-pixel); else q->green=(Quantum) pixel; break; } case 2: /* third component (Blue or Yellow) */ { q->blue=(Quantum) pixel; break; } case 3: /* fourth component (Opacity or Black) */ { if (image->colorspace == CMYKColorspace) indexes[x]=(Quantum) pixel; else q->opacity=(Quantum) (QuantumRange-pixel); break; } case 4: /* fifth component (opacity) */ { q->opacity=(Quantum) (QuantumRange-pixel); break; } default: break; } q++; } if (SyncImagePixels(layer_info[i].image) == MagickFalse) break; } } if (layer_info[i].opacity != OpaqueOpacity) { /* Correct for opacity level. */ for (y=0; y < (long) layer_info[i].image->rows; y++) { q=GetImagePixels(layer_info[i].image,0,y, layer_info[i].image->columns,1); if (q == (PixelPacket *) NULL) break; indexes=GetIndexes(layer_info[i].image); for (x=0; x < (long) layer_info[i].image->columns; x++) { q->opacity=QuantumRange-(Quantum) (QuantumScale*(q->opacity*layer_info[i].opacity)); q++; } if (SyncImagePixels(layer_info[i].image) == MagickFalse) break; } } if (layer_info[i].image->colorspace == CMYKColorspace) (void) NegateImage(layer_info[i].image,MagickFalse); } /* added by palf -> invisible group layer make layer of this group invisible I consider that all layer with width and height null are layer for group layer */ { short inside_layer = 0; short layer_visible = 0; for (i=number_layers-1; i >=0; i--) { if ((layer_info[i].page.width == 0) || (layer_info[i].page.height == 0)) { if (inside_layer == 0) { inside_layer=1; layer_visible=(short int) layer_info[i].visible; } else { inside_layer = 0; } } else if ((inside_layer == 1) && (layer_visible == 0)) { layer_info[i].visible=(unsigned char) layer_visible; layer_info[i].image->compose=NoCompositeOp; } } } /* added by palf -> suppression of empty layer */ /* I consider that all layer with width and height null are layer for group layer */ for (i=0; i < number_layers; i++) { if ((layer_info[i].page.width == 0) || (layer_info[i].page.height == 0)) { if (layer_info[i].image != (Image *) NULL) layer_info[i].image=DestroyImage(layer_info[i].image); for (j=i; j < number_layers - 1; j++) layer_info[j] = layer_info[j+1]; number_layers--; i--; } } mask_size = ReadBlobMSBLong(image); /* global mask size: currently ignored */ if (number_layers > 0) { if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule()," putting layers into image list"); for (i=0; i < number_layers; i++) { if (i > 0) layer_info[i].image->previous=layer_info[i-1].image; if (i < (number_layers-1)) layer_info[i].image->next=layer_info[i+1].image; layer_info[i].image->page=layer_info[i].page; } image->next=layer_info[0].image; layer_info[0].image->previous=image; layer_info=(LayerInfo *) RelinquishMagickMemory(layer_info); } layer_offset-=TellBlob(image); offset=SeekBlob(image,layer_offset,SEEK_CUR); } } /* Read the precombined layer, present for PSD < 4 compatibility */ if (image->debug != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " reading the precombined layer"); compression=ReadBlobMSBShort(image); if (compression == 1) { /* Read Packbit encoded pixel data as separate planes. */ for (i=0; i < (long) (image->rows*psd_info.channels); i++) (void) ReadBlobMSBShort(image); for (i=0; i < (long) psd_info.channels; i++) (void) DecodeImage(image,(int) i); } else { /* Read uncompressed pixel data as separate planes. */ packet_size=1; if (image->storage_class == PseudoClass) { if (image->colors > 256) packet_size++; } else if (image->depth > 8) packet_size++; for (i=0; i < (long) psd_info.channels; i++) { for (y=0; y < (long) image->rows; y++) { q=GetImagePixels(image,0,y,image->columns,1); if (q == (PixelPacket *) NULL) break; indexes=GetIndexes(image); for (x=0; x < (long) image->columns; x++) { if (packet_size == 1) pixel=(unsigned long) ScaleCharToQuantum((unsigned char) ReadBlobByte(image)); else pixel=(unsigned long) ScaleShortToQuantum( ReadBlobMSBShort(image)); switch (image->matte ? i-1 : i) { case -1: { q->opacity=(Quantum) (QuantumRange-pixel); break; } case 0: { q->red=(Quantum) pixel; if (image->storage_class == PseudoClass) { if (packet_size == 1) indexes[x]=(IndexPacket) ScaleQuantumToChar((Quantum) pixel); else indexes[x]=(IndexPacket) ScaleQuantumToShort((Quantum) pixel); *q=image->colormap[(long) indexes[x]]; q->red=image->colormap[(long) indexes[x]].red; q->green=image->colormap[(long) indexes[x]].green; q->blue=image->colormap[(long) indexes[x]].blue; } break; } case 1: { if (image->storage_class == PseudoClass) q->opacity=(Quantum) (QuantumRange-pixel); else q->green=(Quantum) pixel; break; } case 2: { q->blue=(Quantum) pixel; break; } case 3: { if (image->colorspace == CMYKColorspace) indexes[x]=(IndexPacket) pixel; else q->opacity=(Quantum) (QuantumRange-pixel); break; } case 4: { q->opacity=(Quantum) (QuantumRange-pixel); break; } default: break; } q++; } if (SyncImagePixels(image) == MagickFalse) break; } } } if (image->colorspace == CMYKColorspace) (void) NegateImage(image,MagickFalse); CloseBlob(image); return(GetFirstImageInList(image)); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e g i s t e r P S D I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % RegisterPSDImage() adds properties for the PSD image format to % the list of supported formats. The properties include the image format % tag, a method to read and/or write the format, whether the format % supports the saving of more than one frame to the same file or blob, % whether the format supports native in-memory I/O, and a brief % description of the format. % % The format of the RegisterPSDImage method is: % % unsigned long RegisterPSDImage(void) % */ ModuleExport unsigned long RegisterPSDImage(void) { MagickInfo *entry; entry=SetMagickInfo("PSD"); entry->decoder=(DecodeImageHandler *) ReadPSDImage; entry->encoder=(EncodeImageHandler *) WritePSDImage; entry->magick=(IsImageFormatHandler *) IsPSD; entry->description=ConstantString("Adobe Photoshop bitmap"); entry->module=ConstantString("PSD"); (void) RegisterMagickInfo(entry); return(MagickImageCoderSignature); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % U n r e g i s t e r P S D I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % UnregisterPSDImage() removes format registrations made by the % PSD module from the list of supported formats. % % The format of the UnregisterPSDImage method is: % % UnregisterPSDImage(void) % */ ModuleExport void UnregisterPSDImage(void) { (void) UnregisterMagickInfo("PSD"); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W r i t e P S D I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % WritePSDImage() writes an image in the Adobe Photoshop encoded image % format. % % The format of the WritePSDImage method is: % % MagickBooleanType WritePSDImage(const ImageInfo *image_info,Image *image) % % A description of each parameter follows. % % o image_info: The image info. % % o image: The image. % % */ static void WriteOneChannel(const ImageInfo *image_info,Image *image, Image *tmp_image,unsigned char *pixels,QuantumType quantum_type) { int y; QuantumInfo quantum_info; register const PixelPacket *p; size_t packet_size; if (tmp_image->depth > 8) tmp_image->depth=16; GetQuantumInfo(image_info,&quantum_info); packet_size=tmp_image->depth > 8UL ? 2UL : 1UL; for (y=0; y < (long) tmp_image->rows; y++) { p=AcquireImagePixels(tmp_image,0,y,tmp_image->columns,1,&image->exception); if (p == (const PixelPacket *) NULL) break; (void) ImportQuantumPixels(tmp_image,&quantum_info,quantum_type,pixels); (void) WriteBlob(image,packet_size*tmp_image->columns,pixels); } } static MagickBooleanType WriteImageChannels(const ImageInfo *image_info, Image *image,Image *tmp_image) { size_t channels, packet_size; unsigned char *pixels; /* Write uncompressed pixel data as separate planes. */ channels=1; if ((tmp_image->storage_class == PseudoClass) && (tmp_image->matte == MagickFalse)) channels++; packet_size=tmp_image->depth > 8UL ? 2UL : 1UL; pixels=(unsigned char *) AcquireQuantumMemory(channels*tmp_image->columns, packet_size*sizeof(*pixels)); if (pixels == (unsigned char *) NULL) ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); (void) WriteBlobMSBShort(image,0); /* compression */ if (tmp_image->storage_class == PseudoClass) { if (tmp_image->matte == MagickFalse) WriteOneChannel(image_info,image,tmp_image,pixels,IndexQuantum); else WriteOneChannel(image_info,image,tmp_image,pixels,IndexAlphaQuantum); } else { if (tmp_image->colorspace == CMYKColorspace) (void) NegateImage(image,MagickFalse); if (tmp_image->matte) WriteOneChannel(image_info,image,tmp_image,pixels,AlphaQuantum); WriteOneChannel(image_info,image,tmp_image,pixels,RedQuantum); WriteOneChannel(image_info,image,tmp_image,pixels,GreenQuantum); WriteOneChannel(image_info,image,tmp_image,pixels,BlueQuantum); if (tmp_image->colorspace == CMYKColorspace) { WriteOneChannel(image_info,image,tmp_image,pixels,BlackQuantum); (void) NegateImage(image,MagickFalse); } } pixels=(unsigned char *) RelinquishMagickMemory(pixels); return(MagickTrue); } /* Write white background, RLE-compressed */ static void WriteWhiteBackground( Image* image ) { long w8, w; char *d, scanline[256]; int numChannels = 3, dim = (int) (image->rows*numChannels); register long i; size_t length; unsigned short bytecount; (void) WriteBlobMSBShort(image,1); /* RLE compressed */ w8 = (long) image->columns; d = scanline; /* Set up scanline */ for (w=w8; w > 128; w-=128) { *d++=(-127); *d++=(char) 255; } switch (w) { case 0: break; case 1: *d++=0; *d++=(char) 255; break; default: *d++=(char) (1-w); *d++=(char) 255; break; } bytecount = d - scanline; /* Scanline counts (rows*channels) */ for (i=0; i < dim; i++) { (void) WriteBlobMSBShort(image,bytecount); } /* RLE compressed data */ length = bytecount; for (i=0; i < dim; i++) { (void) WriteBlob( image, length, (unsigned char *) scanline ); } } static void WritePascalString (Image* inImage, const char *inString, int inPad) { size_t strLength; int i; /* max length is 255 */ strLength = (strlen(inString) > 255UL ) ? 255UL : strlen(inString); if ( strLength != 0 ) { (void) WriteBlobByte(inImage,(unsigned char) strLength); (void) WriteBlob(inImage, strLength, (unsigned char *) inString); } else (void) WriteBlobByte(inImage, 0); strLength ++; if ( (strLength % inPad) == 0 ) return; for (i=0; i < (long) (inPad-(strLength % inPad)); i++) (void) WriteBlobByte(inImage,0); } static MagickBooleanType WritePSDImage(const ImageInfo *image_info,Image *image) { const char *theAttr; const StringInfo *profile; MagickBooleanType force_white_background = image->matte, invert_layer_count = MagickFalse, status; register long i; size_t num_channels, packet_size; unsigned char layer_name[4]; unsigned long channel_size, channelLength, layer_count, layer_info_size, rounded_layer_info_size; Image * tmp_image = (Image *) NULL, * base_image = force_white_background ? image : GetNextImageInList(image); /* Open output image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); assert(image != (Image *) NULL); assert(image->signature == MagickSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); if (status == MagickFalse) return(status); packet_size=(size_t) (image->depth > 8 ? 6 : 3); if (image->matte != MagickFalse) packet_size+=image->depth > 8 ? 2 : 1; (void) WriteBlob(image,4,(unsigned char *) "8BPS"); (void) WriteBlobMSBShort(image,1); /* version */ for ( i=1; i<=6; i++) (void) WriteBlobByte(image, 0); /* 6 bytes of reserved */ if ( force_white_background ) num_channels = 3; else { if (image->storage_class == PseudoClass) num_channels=(image->matte ? 2UL : 1UL); else { if (image->colorspace != CMYKColorspace) num_channels=(image->matte ? 4UL : 3UL); else num_channels=(image->matte ? 5UL : 4UL); } } (void) WriteBlobMSBShort(image,(unsigned short) num_channels); (void) WriteBlobMSBLong(image,image->rows); (void) WriteBlobMSBLong(image,image->columns); (void) WriteBlobMSBShort(image,(unsigned short) (image->storage_class == PseudoClass ? 8 : image->depth > 8 ? 16 : 8)); if (((image_info->colorspace != UndefinedColorspace) || (image->colorspace != CMYKColorspace)) && (image_info->colorspace != CMYKColorspace)) { if (image_info->colorspace == UndefinedColorspace) (void) SetImageColorspace(image,RGBColorspace); (void) WriteBlobMSBShort(image,(unsigned short) (image->storage_class == PseudoClass ? 2 : 3)); } else { if (image_info->colorspace == UndefinedColorspace) (void) SetImageColorspace(image,CMYKColorspace); (void) WriteBlobMSBShort(image,4); } if ((image->storage_class == DirectClass) || (image->colors > 256)) (void) WriteBlobMSBLong(image,0); else { /* Write PSD raster colormap. */ (void) WriteBlobMSBLong(image,768); for (i=0; i < (long) image->colors; i++) (void) WriteBlobByte(image,ScaleQuantumToChar(image->colormap[i].red)); for ( ; i < 256; i++) (void) WriteBlobByte(image,0); for (i=0; i < (long) image->colors; i++) (void) WriteBlobByte(image,ScaleQuantumToChar(image->colormap[i].green)); for ( ; i < 256; i++) (void) WriteBlobByte(image,0); for (i=0; i < (long) image->colors; i++) (void) WriteBlobByte(image,ScaleQuantumToChar(image->colormap[i].blue)); for ( ; i < 256; i++) (void) WriteBlobByte(image,0); } /* image resource block */ profile=GetImageProfile(image,"iptc"); if (profile == (StringInfo *) NULL) (void) WriteBlobMSBLong(image,0); else { (void) WriteBlobMSBLong(image,(unsigned long) GetStringInfoLength(profile)); (void) WriteBlob( image, GetStringInfoLength(profile), GetStringInfoDatum(profile) ); } compute_layer_info: layer_count = 0; layer_info_size = 2; tmp_image = base_image; while ( tmp_image != NULL ) { packet_size=tmp_image->depth > 8 ? 2UL : 1UL; if (tmp_image->storage_class == PseudoClass) num_channels = (tmp_image->matte != MagickFalse ? 2UL : 1UL); else if (tmp_image->colorspace != CMYKColorspace) num_channels = (tmp_image->matte != MagickFalse ? 4UL : 3UL); else num_channels = (tmp_image->matte != MagickFalse ? 5UL : 4UL); channelLength=(unsigned long) (tmp_image->columns * tmp_image->rows * packet_size + 2); layer_info_size += (unsigned long) (4*4 + 2 + num_channels * 6 + 4 + 4 + 4 * 1 + 4 + 12 + num_channels * channelLength); layer_count++; tmp_image = GetNextImageInList(tmp_image); } /* if the image has a matte, then we need to use layers */ if ( layer_count == 0 && image->matte == MagickTrue ) { invert_layer_count = MagickTrue; base_image = image; goto compute_layer_info; /* yes, goto's suck, but it keeps the code cleaner! */ } if ( layer_count == 0 ) (void) WriteBlobMSBLong(image, 0); else { (void) WriteBlobMSBLong(image,layer_info_size+4+4); if ( layer_info_size/2 != (layer_info_size+1)/2 ) /* odd */ rounded_layer_info_size = layer_info_size + 1; else rounded_layer_info_size = layer_info_size; (void) WriteBlobMSBLong(image,rounded_layer_info_size); if ( invert_layer_count ) layer_count *= -1; /* if we have a matte, then use negative count! */ (void) WriteBlobMSBShort(image,(unsigned short) layer_count); layer_count = 1; tmp_image = base_image; while ( tmp_image != NULL ) { (void) WriteBlobMSBLong(image,0); (void) WriteBlobMSBLong(image,0); (void) WriteBlobMSBLong(image,tmp_image->rows); (void) WriteBlobMSBLong(image,tmp_image->columns); packet_size=tmp_image->depth > 8 ? 2UL : 1UL; channel_size=(unsigned long) ((packet_size*tmp_image->rows*tmp_image->columns)+2); if (tmp_image->storage_class == PseudoClass) { (void) WriteBlobMSBShort(image,(unsigned short) (tmp_image->matte ? 2 : 1)); if (tmp_image->matte) { (void) WriteBlobMSBShort(image,(unsigned short) -1); (void) WriteBlobMSBLong(image,channel_size); } (void) WriteBlobMSBShort(image, 0); (void) WriteBlobMSBLong(image, channel_size); } else if (tmp_image->colorspace != CMYKColorspace) { (void) WriteBlobMSBShort(image,(unsigned short) (tmp_image->matte ? 4 : 3)); if (tmp_image->matte) { (void) WriteBlobMSBShort(image,(unsigned short) -1); (void) WriteBlobMSBLong(image,channel_size); } (void) WriteBlobMSBShort(image, 0); (void) WriteBlobMSBLong(image, channel_size); (void) WriteBlobMSBShort(image, 1); (void) WriteBlobMSBLong(image, channel_size); (void) WriteBlobMSBShort(image, 2); (void) WriteBlobMSBLong(image, channel_size); } else { (void) WriteBlobMSBShort(image,(unsigned short) (tmp_image->matte ? 5 : 4)); if (tmp_image->matte) { (void) WriteBlobMSBShort(image,(unsigned short) -1); (void) WriteBlobMSBLong(image,channel_size); } (void) WriteBlobMSBShort(image, 0); (void) WriteBlobMSBLong(image, channel_size); (void) WriteBlobMSBShort(image, 1); (void) WriteBlobMSBLong(image, channel_size); (void) WriteBlobMSBShort(image, 2); (void) WriteBlobMSBLong(image, channel_size); (void) WriteBlobMSBShort(image, 3); (void) WriteBlobMSBLong(image, channel_size); } (void) WriteBlob(image, 4, (unsigned char *) "8BIM"); (void) WriteBlob(image, 4, (unsigned char *) CompositeOperatorToPSDBlendMode(tmp_image->compose)); (void) WriteBlobByte(image, 255); /* BOGUS: layer opacity */ (void) WriteBlobByte(image, 0); (void) WriteBlobByte(image, 1); /* BOGUS: layer attributes - visible, etc. */ (void) WriteBlobByte(image, 0); (void) WriteBlobMSBLong(image, 12); (void) WriteBlobMSBLong(image, 0); (void) WriteBlobMSBLong(image, 0); theAttr=(const char *) GetImageProperty(tmp_image,"label"); if (theAttr) { WritePascalString( image, theAttr, 4 ); /* sprintf((char *) &(layer_name[1]), "%4s", theAttr->value ); (void) WriteBlobByte(image, 3); (void) WriteBlob(image, 3, &layer_name[1]); */ } else { (void) FormatMagickString((char *) layer_name,MaxTextExtent,"L%02ld", layer_count++ ); WritePascalString( image, (char*)layer_name, 4 ); } tmp_image = GetNextImageInList(tmp_image); }; /* now the image data! */ tmp_image = base_image; while ( tmp_image != NULL ) { status=WriteImageChannels(image_info,image,tmp_image); /* add in the pad! */ if ( rounded_layer_info_size != layer_info_size ) (void) WriteBlobByte(image,'\0'); tmp_image = GetNextImageInList(tmp_image); }; /* user mask data */ (void) WriteBlobMSBLong(image, 0); } /* now the background image data! */ if (force_white_background != MagickFalse) WriteWhiteBackground(image); else status=WriteImageChannels(image_info,image,image); CloseBlob(image); return(status); }