| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % 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 1999-2010 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/cache.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) |
| { |
| ExceptionInfo |
| *exception; |
| |
| MagickOffsetType |
| number_pixels; |
| |
| Quantum |
| pixel; |
| |
| register IndexPacket |
| *indexes; |
| |
| register long |
| i, |
| x; |
| |
| register PixelPacket |
| *q; |
| |
| ssize_t |
| count; |
| |
| exception=(&image->exception); |
| 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)); |
| q=GetAuthenticPixels(image,(long) (x % image->columns), |
| (long) (x/image->columns),-count+1,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| indexes=GetAuthenticIndexQueue(image); |
| for (count=(-count+1); count > 0; count--) |
| { |
| 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) (QuantumRange-pixel); |
| break; |
| } |
| default: |
| break; |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| q++; |
| indexes++; |
| x++; |
| number_pixels--; |
| } |
| continue; |
| } |
| count++; |
| q=GetAuthenticPixels(image,(long) (x % image->columns), |
| (long) (x/image->columns),count,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| indexes=GetAuthenticIndexQueue(image); |
| for (i=(long) count; i > 0; i--) |
| { |
| pixel=ScaleCharToQuantum((unsigned char) ReadBlobByte(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 (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| q++; |
| indexes++; |
| 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: compare image format pattern against these bytes. |
| % |
| % 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((const 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(Image *image, |
| const unsigned char *blocks,size_t length) |
| { |
| const unsigned char |
| *p; |
| |
| StringInfo |
| *profile; |
| |
| unsigned long |
| count, |
| long_sans; |
| |
| unsigned short |
| id, |
| short_sans; |
| |
| if (length < 16) |
| return(MagickFalse); |
| profile=AcquireStringInfo(length); |
| SetStringInfoDatum(profile,blocks); |
| (void) SetImageProfile(image,"8bim",profile); |
| profile=DestroyStringInfo(profile); |
| for (p=blocks; (p >= blocks) && (p < (blocks+length-16)); ) |
| { |
| if (LocaleNCompare((const char *) p,"8BIM",4) != 0) |
| break; |
| p=PushLongPixel(LSBEndian,p,&long_sans); |
| p=PushShortPixel(LSBEndian,p,&id); |
| p=PushShortPixel(LSBEndian,p,&short_sans); |
| p=PushLongPixel(LSBEndian,p,&count); |
| switch (id) |
| { |
| case 0x03ed: |
| { |
| unsigned short |
| resolution; |
| |
| /* |
| Resolution info. |
| */ |
| p=PushShortPixel(LSBEndian,p,&resolution); |
| image->x_resolution=(double) resolution; |
| p=PushShortPixel(LSBEndian,p,&short_sans); |
| p=PushShortPixel(LSBEndian,p,&short_sans); |
| p=PushShortPixel(LSBEndian,p,&short_sans); |
| p=PushShortPixel(LSBEndian,p,&resolution); |
| image->y_resolution=(double) resolution; |
| p=PushShortPixel(LSBEndian,p,&short_sans); |
| p=PushShortPixel(LSBEndian,p,&short_sans); |
| p=PushShortPixel(LSBEndian,p,&short_sans); |
| 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=AcquireImage(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 (AcquireImageColormap(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 (AcquireImageColormap(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,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) |
| { |
| (void) CloseBlob(image); |
| return(GetFirstImageInList(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 ((image_info->number_scenes == 1) && (image_info->scene == 0)) |
| for ( ; length != 0; length--) |
| if (ReadBlobByte(image) == EOF) |
| { |
| ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", |
| image->filename); |
| break; |
| } |
| 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; |
| /* |
| Layer name. |
| */ |
| length=(size_t) ReadBlobByte(image); |
| 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); |
| combinedlength+=length+1; |
| |
| #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,MagickFalse,&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) |
| 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,"psd:layer.x",s); |
| (void) FormatMagickString(s,MaxTextExtent,"%ld", |
| layer_info[i].page.y); |
| (void) SetImageArtifact(layer_info[i].image,"psd:layer.y",s); |
| (void) FormatMagickString(s,MaxTextExtent,"%lu",(unsigned long) |
| layer_info[i].opacity ); |
| (void) SetImageArtifact(layer_info[i].image,"psd: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 ((layer_info[i].page.height != 0) && |
| (layer_info[i].page.width != 0)) |
| { |
| 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 datas 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=GetAuthenticPixels(layer_info[i].image,0,y, |
| layer_info[i].image->columns,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| indexes=GetAuthenticIndexQueue(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 (SyncAuthenticPixels(layer_info[i].image,exception) == MagickFalse) |
| break; |
| } |
| } |
| } |
| if (layer_info[i].opacity != OpaqueOpacity) |
| { |
| /* |
| Correct for opacity level. |
| */ |
| for (y=0; y < (long) layer_info[i].image->rows; y++) |
| { |
| q=GetAuthenticPixels(layer_info[i].image,0,y, |
| layer_info[i].image->columns,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| indexes=GetAuthenticIndexQueue(layer_info[i].image); |
| for (x=0; x < (long) layer_info[i].image->columns; x++) |
| { |
| q->opacity=(Quantum) (QuantumRange-(Quantum) (QuantumScale* |
| ((QuantumRange-q->opacity)*(QuantumRange- |
| layer_info[i].opacity)))); |
| q++; |
| } |
| if (SyncAuthenticPixels(layer_info[i].image,exception) == 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 datas 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 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=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| indexes=GetAuthenticIndexQueue(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 (i) |
| { |
| case -1: |
| { |
| q->opacity=(Quantum) (QuantumRange-pixel); |
| break; |
| } |
| case 0: |
| { |
| q->red=(Quantum) pixel; |
| if (psd_info.channels == 1) |
| { |
| q->green=q->red; |
| q->blue=q->red; |
| } |
| 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 (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| } |
| } |
| } |
| if (image->colorspace == CMYKColorspace) |
| (void) NegateImage(image,MagickFalse); |
| (void) 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, |
| const MagickBooleanType compression_flag) |
| { |
| int |
| y; |
| |
| QuantumInfo |
| *quantum_info; |
| |
| register const PixelPacket |
| *p; |
| |
| size_t |
| packet_size; |
| |
| if (compression_flag) |
| (void) WriteBlobMSBShort(image,0); /* compression */ |
| if (tmp_image->depth > 8) |
| tmp_image->depth=16; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| packet_size=tmp_image->depth > 8UL ? 2UL : 1UL; |
| for (y=0; y < (long) tmp_image->rows; y++) |
| { |
| p=GetVirtualPixels(tmp_image,0,y,tmp_image->columns,1,&image->exception); |
| if (p == (const PixelPacket *) NULL) |
| break; |
| (void) ExportQuantumPixels(tmp_image,(CacheView *) NULL,quantum_info, |
| quantum_type,pixels,&image->exception); |
| (void) WriteBlob(image,packet_size*tmp_image->columns,pixels); |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| } |
| |
| static MagickBooleanType WriteImageChannels(const ImageInfo *image_info, |
| Image *image,Image *tmp_image,const MagickBooleanType separate) |
| { |
| int |
| i; |
| |
| size_t |
| channels, |
| packet_size; |
| |
| unsigned char |
| *pixels; |
| |
| /* |
| Write uncompressed pixel datas 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"); |
| i=0; |
| if (tmp_image->storage_class == PseudoClass) |
| { |
| if (tmp_image->matte == MagickFalse) |
| WriteOneChannel(image_info,image,tmp_image,pixels,IndexQuantum, |
| (i++ == 0) || (separate != MagickFalse) ? MagickTrue : MagickFalse); |
| else |
| WriteOneChannel(image_info,image,tmp_image,pixels,IndexAlphaQuantum, |
| (i++ == 0) || (separate != MagickFalse) ? MagickTrue : MagickFalse); |
| } |
| else |
| { |
| if (tmp_image->colorspace == CMYKColorspace) |
| (void) NegateImage(image,MagickFalse); |
| if (tmp_image->matte) |
| WriteOneChannel(image_info,image,tmp_image,pixels,AlphaQuantum, |
| (i++ == 0) || (separate != MagickFalse) ? MagickTrue : MagickFalse); |
| WriteOneChannel(image_info,image,tmp_image,pixels,RedQuantum, |
| (i++ == 0) || (separate != MagickFalse) ? MagickTrue : MagickFalse); |
| WriteOneChannel(image_info,image,tmp_image,pixels,GreenQuantum, |
| (i++ == 0) || (separate != MagickFalse) ? MagickTrue : MagickFalse); |
| WriteOneChannel(image_info,image,tmp_image,pixels,BlueQuantum, |
| (i++ == 0) || (separate != MagickFalse) ? MagickTrue : MagickFalse); |
| if (tmp_image->colorspace == CMYKColorspace) |
| { |
| WriteOneChannel(image_info,image,tmp_image,pixels,BlackQuantum, |
| (i++ == 0) || (separate != MagickFalse) ? MagickTrue : MagickFalse); |
| (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, (const 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 void WriteResolutionResourceBlock(Image *image) |
| { |
| unsigned long |
| x_resolution, |
| y_resolution; |
| |
| unsigned short |
| units; |
| |
| x_resolution=65536.0*image->x_resolution+0.5; |
| y_resolution=65536.0*image->y_resolution+0.5; |
| units=1; |
| if (image->units == PixelsPerCentimeterResolution) |
| { |
| x_resolution=2.54*65536.0*image->x_resolution*0.5; |
| y_resolution=2.54*65536.0*image->y_resolution+0.5; |
| units=2; |
| } |
| (void) WriteBlob(image,4,(const unsigned char *) "8BIM"); |
| (void) WriteBlobMSBShort(image,0x03ED); |
| (void) WriteBlobMSBShort(image,0); |
| (void) WriteBlobMSBLong(image,16); /* resource size */ |
| (void) WriteBlobMSBLong(image,x_resolution); |
| (void) WriteBlobMSBShort(image,units); /* horizontal resolution unit */ |
| (void) WriteBlobMSBShort(image,units); /* width unit */ |
| (void) WriteBlobMSBLong(image,y_resolution); |
| (void) WriteBlobMSBShort(image,units); /* vertical resolution unit */ |
| (void) WriteBlobMSBShort(image,units); /* height unit */ |
| } |
| |
| 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, |
| res_extra; |
| |
| 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,(const 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->colorspace != UndefinedColorspace) || |
| (image->colorspace != CMYKColorspace)) && |
| (image->colorspace != CMYKColorspace)) |
| { |
| if (image->colorspace != RGBColorspace) |
| (void) TransformImageColorspace(image,RGBColorspace); |
| (void) WriteBlobMSBShort(image,(unsigned short) |
| (image->storage_class == PseudoClass ? 2 : 3)); |
| } |
| else |
| { |
| if (image->colorspace != RGBColorspace) |
| (void) TransformImageColorspace(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. |
| */ |
| res_extra = 28; /* 0x03EB */ |
| profile=GetImageProfile(image,"8bim"); |
| if (profile == (StringInfo *) NULL) |
| WriteBlobMSBLong(image, res_extra); |
| else |
| { |
| (void) WriteBlobMSBLong(image,(unsigned long) res_extra + |
| GetStringInfoLength(profile)); |
| (void) WriteBlob(image,GetStringInfoLength(profile),GetStringInfoDatum( |
| profile)); |
| } |
| WriteResolutionResourceBlock(image); |
| |
| 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 int) ((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, (const unsigned char *) "8BIM"); |
| (void) WriteBlob(image, 4, (const 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,MagickTrue); |
| |
| /* 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,MagickFalse); |
| |
| (void) CloseBlob(image); |
| return(status); |
| } |