static inline Quantum ReadVIPSPixelNONE(Image *image, const VIPSBandFormat format,const VIPSType type) { switch(type) { case VIPSTypeB_W: case VIPSTypeRGB: { unsigned char c; switch(format) { case VIPSBandFormatUCHAR: case VIPSBandFormatCHAR: c=(unsigned char) ReadBlobByte(image); break; case VIPSBandFormatUSHORT: case VIPSBandFormatSHORT: c=(unsigned char) ReadBlobShort(image); break; case VIPSBandFormatUINT: case VIPSBandFormatINT: c=(unsigned char) ReadBlobLong(image); break; case VIPSBandFormatFLOAT: c=(unsigned char) ReadBlobFloat(image); break; case VIPSBandFormatDOUBLE: c=(unsigned char) ReadBlobDouble(image); break; default: c=0; break; } return(ScaleCharToQuantum(c)); } case VIPSTypeGREY16: case VIPSTypeRGB16: { unsigned short s; switch(format) { case VIPSBandFormatUSHORT: case VIPSBandFormatSHORT: s=(unsigned short) ReadBlobShort(image); break; case VIPSBandFormatUINT: case VIPSBandFormatINT: s=(unsigned short) ReadBlobLong(image); break; case VIPSBandFormatFLOAT: s=(unsigned short) ReadBlobFloat(image); break; case VIPSBandFormatDOUBLE: s=(unsigned short) ReadBlobDouble(image); break; default: s=0; break; } return(ScaleShortToQuantum(s)); } case VIPSTypeCMYK: case VIPSTypesRGB: switch(format) { case VIPSBandFormatUCHAR: case VIPSBandFormatCHAR: return(ScaleCharToQuantum((unsigned char) ReadBlobByte(image))); case VIPSBandFormatUSHORT: case VIPSBandFormatSHORT: return(ScaleShortToQuantum(ReadBlobShort(image))); case VIPSBandFormatUINT: case VIPSBandFormatINT: return(ScaleLongToQuantum(ReadBlobLong(image))); case VIPSBandFormatFLOAT: return((Quantum) ((float) QuantumRange*(ReadBlobFloat(image)/1.0))); case VIPSBandFormatDOUBLE: return((Quantum) ((double) QuantumRange*(ReadBlobDouble( image)/1.0))); default: return((Quantum) 0); } default: return((Quantum) 0); } }
/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d C A C H E I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadMPCImage() reads an Magick Persistent Cache 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 ReadMPCImage method is: % % Image *ReadMPCImage(const ImageInfo *image_info,ExceptionInfo *exception) % % Decompression code contributed by Kyle Shorter. % % A description of each parameter follows: % % o image_info: the image info. % % o exception: return any errors or warnings in this structure. % */ static Image *ReadMPCImage(const ImageInfo *image_info,ExceptionInfo *exception) { char cache_filename[MaxTextExtent], id[MaxTextExtent], keyword[MaxTextExtent], *options; const unsigned char *p; GeometryInfo geometry_info; Image *image; int c; LinkedListInfo *profiles; MagickBooleanType status; MagickOffsetType offset; MagickStatusType flags; register long i; size_t length; ssize_t count; StringInfo *profile; unsigned long depth, quantum_depth; /* 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); } (void) CopyMagickString(cache_filename,image->filename,MaxTextExtent); AppendImageFormat("cache",cache_filename); c=ReadBlobByte(image); if (c == EOF) { image=DestroyImage(image); return((Image *) NULL); } *id='\0'; (void) ResetMagickMemory(keyword,0,sizeof(keyword)); offset=0; do { /* Decode image header; header terminates one character beyond a ':'. */ profiles=(LinkedListInfo *) NULL; length=MaxTextExtent; options=AcquireString((char *) NULL); quantum_depth=MAGICKCORE_QUANTUM_DEPTH; image->depth=8; image->compression=NoCompression; while ((isgraph(c) != MagickFalse) && (c != (int) ':')) { register char *p; if (c == (int) '{') { char *comment; /* Read comment-- any text between { }. */ length=MaxTextExtent; comment=AcquireString((char *) NULL); for (p=comment; comment != (char *) NULL; p++) { c=ReadBlobByte(image); if ((c == EOF) || (c == (int) '}')) break; if ((size_t) (p-comment+1) >= length) { *p='\0'; length<<=1; comment=(char *) ResizeQuantumMemory(comment,length+ MaxTextExtent,sizeof(*comment)); if (comment == (char *) NULL) break; p=comment+strlen(comment); } *p=(char) c; } if (comment == (char *) NULL) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); *p='\0'; (void) SetImageProperty(image,"comment",comment); comment=DestroyString(comment); c=ReadBlobByte(image); } else if (isalnum(c) != MagickFalse) { /* Get the keyword. */ p=keyword; do { if (isspace((int) ((unsigned char) c)) != 0) break; if (c == (int) '=') break; if ((size_t) (p-keyword) < (MaxTextExtent-1)) *p++=(char) c; c=ReadBlobByte(image); } while (c != EOF); *p='\0'; p=options; while (isspace((int) ((unsigned char) c)) != 0) c=ReadBlobByte(image); if (c == (int) '=') { /* Get the keyword value. */ c=ReadBlobByte(image); while ((c != (int) '}') && (c != EOF)) { if ((size_t) (p-options+1) >= length) { *p='\0'; length<<=1; options=(char *) ResizeQuantumMemory(options,length+ MaxTextExtent,sizeof(*options)); if (options == (char *) NULL) break; p=options+strlen(options); } if (options == (char *) NULL) ThrowReaderException(ResourceLimitError, "MemoryAllocationFailed"); *p++=(char) c; c=ReadBlobByte(image); if (*options != '{') if (isspace((int) ((unsigned char) c)) != 0) break; } } *p='\0'; if (*options == '{') (void) CopyMagickString(options,options+1,MaxTextExtent); /* Assign a value to the specified keyword. */ switch (*keyword) { case 'b': case 'B': { if (LocaleCompare(keyword,"background-color") == 0) { (void) QueryColorDatabase(options,&image->background_color, exception); break; } if (LocaleCompare(keyword,"blue-primary") == 0) { flags=ParseGeometry(options,&geometry_info); image->chromaticity.blue_primary.x=geometry_info.rho; image->chromaticity.blue_primary.y=geometry_info.sigma; if ((flags & SigmaValue) == 0) image->chromaticity.blue_primary.y= image->chromaticity.blue_primary.x; break; } if (LocaleCompare(keyword,"border-color") == 0) { (void) QueryColorDatabase(options,&image->border_color, exception); break; } (void) SetImageProperty(image,keyword,options); break; } case 'c': case 'C': { if (LocaleCompare(keyword,"class") == 0) { long storage_class; storage_class=ParseMagickOption(MagickClassOptions, MagickFalse,options); if (storage_class < 0) break; image->storage_class=(ClassType) storage_class; break; } if (LocaleCompare(keyword,"colors") == 0) { image->colors=StringToUnsignedLong(options); break; } if (LocaleCompare(keyword,"colorspace") == 0) { long colorspace; colorspace=ParseMagickOption(MagickColorspaceOptions, MagickFalse,options); if (colorspace < 0) break; image->colorspace=(ColorspaceType) colorspace; break; } if (LocaleCompare(keyword,"compression") == 0) { long compression; compression=ParseMagickOption(MagickCompressOptions, MagickFalse,options); if (compression < 0) break; image->compression=(CompressionType) compression; break; } if (LocaleCompare(keyword,"columns") == 0) { image->columns=StringToUnsignedLong(options); break; } (void) SetImageProperty(image,keyword,options); break; } case 'd': case 'D': { if (LocaleCompare(keyword,"delay") == 0) { image->delay=StringToUnsignedLong(options); break; } if (LocaleCompare(keyword,"depth") == 0) { image->depth=StringToUnsignedLong(options); break; } if (LocaleCompare(keyword,"dispose") == 0) { long dispose; dispose=ParseMagickOption(MagickDisposeOptions,MagickFalse, options); if (dispose < 0) break; image->dispose=(DisposeType) dispose; break; } (void) SetImageProperty(image,keyword,options); break; } case 'e': case 'E': { if (LocaleCompare(keyword,"endian") == 0) { long endian; endian=ParseMagickOption(MagickEndianOptions,MagickFalse, options); if (endian < 0) break; image->endian=(EndianType) endian; break; } if (LocaleCompare(keyword,"error") == 0) { image->error.mean_error_per_pixel=StringToDouble(options); break; } (void) SetImageProperty(image,keyword,options); break; } case 'g': case 'G': { if (LocaleCompare(keyword,"gamma") == 0) { image->gamma=StringToDouble(options); break; } if (LocaleCompare(keyword,"green-primary") == 0) { flags=ParseGeometry(options,&geometry_info); image->chromaticity.green_primary.x=geometry_info.rho; image->chromaticity.green_primary.y=geometry_info.sigma; if ((flags & SigmaValue) == 0) image->chromaticity.green_primary.y= image->chromaticity.green_primary.x; break; } (void) SetImageProperty(image,keyword,options); break; } case 'i': case 'I': { if (LocaleCompare(keyword,"id") == 0) { (void) CopyMagickString(id,options,MaxTextExtent); break; } if (LocaleCompare(keyword,"iterations") == 0) { image->iterations=StringToUnsignedLong(options); break; } (void) SetImageProperty(image,keyword,options); break; } case 'm': case 'M': { if (LocaleCompare(keyword,"matte") == 0) { long matte; matte=ParseMagickOption(MagickBooleanOptions,MagickFalse, options); if (matte < 0) break; image->matte=(MagickBooleanType) matte; break; } if (LocaleCompare(keyword,"matte-color") == 0) { (void) QueryColorDatabase(options,&image->matte_color, exception); break; } if (LocaleCompare(keyword,"maximum-error") == 0) { image->error.normalized_maximum_error=StringToDouble(options); break; } if (LocaleCompare(keyword,"mean-error") == 0) { image->error.normalized_mean_error=StringToDouble(options); break; } if (LocaleCompare(keyword,"montage") == 0) { (void) CloneString(&image->montage,options); break; } (void) SetImageProperty(image,keyword,options); break; } case 'o': case 'O': { if (LocaleCompare(keyword,"opaque") == 0) { long matte; matte=ParseMagickOption(MagickBooleanOptions,MagickFalse, options); if (matte < 0) break; image->matte=(MagickBooleanType) matte; break; } if (LocaleCompare(keyword,"orientation") == 0) { long orientation; orientation=ParseMagickOption(MagickOrientationOptions, MagickFalse,options); if (orientation < 0) break; image->orientation=(OrientationType) orientation; break; } (void) SetImageProperty(image,keyword,options); break; } case 'p': case 'P': { if (LocaleCompare(keyword,"page") == 0) { char *geometry; geometry=GetPageGeometry(options); (void) ParseAbsoluteGeometry(geometry,&image->page); geometry=DestroyString(geometry); break; } if ((LocaleNCompare(keyword,"profile:",8) == 0) || (LocaleNCompare(keyword,"profile-",8) == 0)) { if (profiles == (LinkedListInfo *) NULL) profiles=NewLinkedList(0); (void) AppendValueToLinkedList(profiles, AcquireString(keyword+8)); profile=AcquireStringInfo((size_t) StringToLong(options)); (void) SetImageProfile(image,keyword+8,profile); profile=DestroyStringInfo(profile); break; } (void) SetImageProperty(image,keyword,options); break; } case 'q': case 'Q': { if (LocaleCompare(keyword,"quality") == 0) { image->quality=StringToUnsignedLong(options); break; } if (LocaleCompare(keyword,"quantum-depth") == 0) { quantum_depth=StringToUnsignedLong(options); break; } (void) SetImageProperty(image,keyword,options); break; } case 'r': case 'R': { if (LocaleCompare(keyword,"red-primary") == 0) { flags=ParseGeometry(options,&geometry_info); image->chromaticity.red_primary.x=geometry_info.rho; if ((flags & SigmaValue) != 0) image->chromaticity.red_primary.y=geometry_info.sigma; break; } if (LocaleCompare(keyword,"rendering-intent") == 0) { long rendering_intent; rendering_intent=ParseMagickOption(MagickIntentOptions, MagickFalse,options); if (rendering_intent < 0) break; image->rendering_intent=(RenderingIntent) rendering_intent; break; } if (LocaleCompare(keyword,"resolution") == 0) { flags=ParseGeometry(options,&geometry_info); image->x_resolution=geometry_info.rho; image->y_resolution=geometry_info.sigma; if ((flags & SigmaValue) == 0) image->y_resolution=image->x_resolution; break; } if (LocaleCompare(keyword,"rows") == 0) { image->rows=StringToUnsignedLong(options); break; } (void) SetImageProperty(image,keyword,options); break; } case 's': case 'S': { if (LocaleCompare(keyword,"scene") == 0) { image->scene=StringToUnsignedLong(options); break; } (void) SetImageProperty(image,keyword,options); break; } case 't': case 'T': { if (LocaleCompare(keyword,"ticks-per-second") == 0) { image->ticks_per_second=(long) StringToLong(options); break; } if (LocaleCompare(keyword,"tile-offset") == 0) { char *geometry; geometry=GetPageGeometry(options); (void) ParseAbsoluteGeometry(geometry,&image->tile_offset); geometry=DestroyString(geometry); } if (LocaleCompare(keyword,"type") == 0) { long type; type=ParseMagickOption(MagickTypeOptions,MagickFalse, options); if (type < 0) break; image->type=(ImageType) type; break; } (void) SetImageProperty(image,keyword,options); break; } case 'u': case 'U': { if (LocaleCompare(keyword,"units") == 0) { long units; units=ParseMagickOption(MagickResolutionOptions,MagickFalse, options); if (units < 0) break; image->units=(ResolutionType) units; break; } (void) SetImageProperty(image,keyword,options); break; } case 'w': case 'W': { if (LocaleCompare(keyword,"white-point") == 0) { flags=ParseGeometry(options,&geometry_info); image->chromaticity.white_point.x=geometry_info.rho; image->chromaticity.white_point.y=geometry_info.sigma; if ((flags & SigmaValue) == 0) image->chromaticity.white_point.y= image->chromaticity.white_point.x; break; } (void) SetImageProperty(image,keyword,options); break; } default: { (void) SetImageProperty(image,keyword,options); break; } } } else c=ReadBlobByte(image); while (isspace((int) ((unsigned char) c)) != 0) c=ReadBlobByte(image); } options=DestroyString(options); (void) ReadBlobByte(image); /* Verify that required image information is defined. */ if ((LocaleCompare(id,"MagickCache") != 0) || (image->storage_class == UndefinedClass) || (image->compression == UndefinedCompression) || (image->columns == 0) || (image->rows == 0)) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); if (quantum_depth != MAGICKCORE_QUANTUM_DEPTH) ThrowReaderException(CacheError,"InconsistentPersistentCacheDepth"); if (image->montage != (char *) NULL) { register char *p; /* Image directory. */ length=MaxTextExtent; image->directory=AcquireString((char *) NULL); p=image->directory; do { *p='\0'; if ((strlen(image->directory)+MaxTextExtent) >= length) { /* Allocate more memory for the image directory. */ length<<=1; image->directory=(char *) ResizeQuantumMemory(image->directory, length+MaxTextExtent,sizeof(*image->directory)); if (image->directory == (char *) NULL) ThrowReaderException(CorruptImageError,"UnableToReadImageData"); p=image->directory+strlen(image->directory); } c=ReadBlobByte(image); *p++=(char) c; } while (c != (int) '\0'); } if (profiles != (LinkedListInfo *) NULL) { const char *name; const StringInfo *profile; register unsigned char *p; /* Read image profiles. */ ResetLinkedListIterator(profiles); name=(const char *) GetNextValueInLinkedList(profiles); while (name != (const char *) NULL) { profile=GetImageProfile(image,name); if (profile != (StringInfo *) NULL) { p=GetStringInfoDatum(profile); count=ReadBlob(image,GetStringInfoLength(profile),p); } name=(const char *) GetNextValueInLinkedList(profiles); } profiles=DestroyLinkedList(profiles,RelinquishMagickMemory); } depth=GetImageQuantumDepth(image,MagickFalse); if (image->storage_class == PseudoClass) { /* Create image colormap. */ if (AcquireImageColormap(image,image->colors) == MagickFalse) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); if (image->colors != 0) { size_t packet_size; unsigned char *colormap; /* Read image colormap from file. */ packet_size=(size_t) (3UL*depth/8UL); colormap=(unsigned char *) AcquireQuantumMemory(image->colors, packet_size*sizeof(*colormap)); if (colormap == (unsigned char *) NULL) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); count=ReadBlob(image,packet_size*image->colors,colormap); if (count != (ssize_t) (packet_size*image->colors)) ThrowReaderException(CorruptImageError, "InsufficientImageDataInFile"); p=colormap; switch (depth) { default: ThrowReaderException(CorruptImageError, "ImageDepthNotSupported"); case 8: { unsigned char pixel; for (i=0; i < (long) image->colors; i++) { p=PushCharPixel(p,&pixel); image->colormap[i].red=ScaleCharToQuantum(pixel); p=PushCharPixel(p,&pixel); image->colormap[i].green=ScaleCharToQuantum(pixel); p=PushCharPixel(p,&pixel); image->colormap[i].blue=ScaleCharToQuantum(pixel); } break; } case 16: { unsigned short pixel; for (i=0; i < (long) image->colors; i++) { p=PushShortPixel(MSBEndian,p,&pixel); image->colormap[i].red=ScaleShortToQuantum(pixel); p=PushShortPixel(MSBEndian,p,&pixel); image->colormap[i].green=ScaleShortToQuantum(pixel); p=PushShortPixel(MSBEndian,p,&pixel); image->colormap[i].blue=ScaleShortToQuantum(pixel); } break; } case 32: { unsigned long pixel; for (i=0; i < (long) image->colors; i++) { p=PushLongPixel(MSBEndian,p,&pixel); image->colormap[i].red=ScaleLongToQuantum(pixel); p=PushLongPixel(MSBEndian,p,&pixel); image->colormap[i].green=ScaleLongToQuantum(pixel); p=PushLongPixel(MSBEndian,p,&pixel); image->colormap[i].blue=ScaleLongToQuantum(pixel); } break; } } colormap=(unsigned char *) RelinquishMagickMemory(colormap); } } if (EOFBlob(image) != MagickFalse) { ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", image->filename); break; } if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) if (image->scene >= (image_info->scene+image_info->number_scenes-1)) break; /* Attach persistent pixel cache. */ status=PersistPixelCache(image,cache_filename,MagickTrue,&offset,exception); if (status == MagickFalse) ThrowReaderException(CacheError,"UnableToPersistPixelCache"); /* Proceed to next image. */ do { c=ReadBlobByte(image); } while ((isgraph(c) == MagickFalse) && (c != EOF)); if (c != EOF) { /* Allocate next image structure. */ AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) { image=DestroyImageList(image); return((Image *) NULL); } image=SyncNextImageInList(image); status=SetImageProgress(image,LoadImagesTag,TellBlob(image), GetBlobSize(image)); if (status == MagickFalse) break; } } while (c != EOF); (void) CloseBlob(image); return(GetFirstImageInList(image)); }