| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % CCCC AAA L SSSSS % |
| % C A A L SS % |
| % C AAAAA L SSS % |
| % C A A L SS % |
| % CCCC A A LLLLL SSSSS % |
| % % |
| % % |
| % Read/Write CALS Image Format % |
| % % |
| % Software Design % |
| % John Cristy % |
| % July 1992 % |
| % % |
| % % |
| % Copyright 1999-2009 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. % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % The CALS raster format is a standard developed by the Computer Aided |
| % Acquisition and Logistics Support (CALS) office of the United States |
| % Department of Defense to standardize graphics data interchange for |
| % electronic publishing, especially in the areas of technical graphics, |
| % CAD/CAM, and image processing applications. |
| % |
| */ |
| |
| /* |
| Include declarations. |
| */ |
| #include "magick/studio.h" |
| #include "magick/blob.h" |
| #include "magick/blob-private.h" |
| #include "magick/cache.h" |
| #include "magick/colorspace.h" |
| #include "magick/exception.h" |
| #include "magick/exception-private.h" |
| #include "magick/geometry.h" |
| #include "magick/image.h" |
| #include "magick/image-private.h" |
| #include "magick/list.h" |
| #include "magick/magick.h" |
| #include "magick/memory_.h" |
| #include "magick/monitor.h" |
| #include "magick/monitor-private.h" |
| #include "magick/quantum-private.h" |
| #include "magick/resource_.h" |
| #include "magick/static.h" |
| #include "magick/string_.h" |
| #include "magick/module.h" |
| |
| /* |
| Forward declarations. |
| */ |
| static MagickBooleanType |
| WriteCALSImage(const ImageInfo *,Image *); |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % I s C A L S % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % IsCALS() returns MagickTrue if the image format type, identified by the |
| % magick string, is CALS. |
| % |
| % The format of the IsCALS method is: |
| % |
| % MagickBooleanType IsCALS(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 IsCALS(const unsigned char *magick,const size_t length) |
| { |
| if (length < 128) |
| return(MagickFalse); |
| if (LocaleNCompare((const char *) magick,"version: MIL-STD-1840",21) == 0) |
| return(MagickTrue); |
| if (LocaleNCompare((const char *) magick,"srcdocid:",9) == 0) |
| return(MagickTrue); |
| if (LocaleNCompare((const char *) magick,"rorient:",8) == 0) |
| return(MagickTrue); |
| return(MagickFalse); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d C A L S I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadCALSImage() reads an Automated Interchange of Technical Information, |
| % MIL-STD-1840A image file and returns it. It allocates the memorient_y necessary |
| % for the new Image structure and returns a pointer to the new image. |
| % |
| % The format of the ReadCALSImage method is: |
| % |
| % Image *ReadCALSImage(const ImageInfo *image_info, |
| % ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o image_info: the image info. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| |
| static inline size_t WriteCALSLSBLong(FILE *file,const unsigned int value) |
| { |
| unsigned char |
| buffer[4]; |
| |
| buffer[0]=(unsigned char) value; |
| buffer[1]=(unsigned char) (value >> 8); |
| buffer[2]=(unsigned char) (value >> 16); |
| buffer[3]=(unsigned char) (value >> 24); |
| return(fwrite(buffer,1,4,file)); |
| } |
| |
| static Image *ReadCALSImage(const ImageInfo *image_info, |
| ExceptionInfo *exception) |
| { |
| char |
| filename[MaxTextExtent], |
| header[129]; |
| |
| FILE |
| *file; |
| |
| Image |
| *image; |
| |
| ImageInfo |
| *read_info; |
| |
| int |
| c, |
| unique_file; |
| |
| MagickBooleanType |
| status; |
| |
| register long |
| i; |
| |
| size_t |
| length; |
| |
| ssize_t |
| offset, |
| strip_offset; |
| |
| unsigned int |
| density, |
| direction, |
| height, |
| orientation, |
| pel_path, |
| type, |
| width; |
| |
| /* |
| 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 CALS header. |
| */ |
| (void) ResetMagickMemory(header,0,sizeof(header)); |
| density=0; |
| direction=0; |
| orientation=1; |
| pel_path=0; |
| type=1; |
| width=0; |
| height=0; |
| for (i=0; i < 16; i++) |
| { |
| if (ReadBlob(image,128,(unsigned char *) header) != 128) |
| break; |
| switch (*header) |
| { |
| case 'R': |
| case 'r': |
| { |
| if (LocaleNCompare(header,"rdensty:",8) == 0) |
| { |
| (void) sscanf(header+8,"%u",&density); |
| break; |
| } |
| if (LocaleNCompare(header,"rpelcnt:",8) == 0) |
| { |
| (void) sscanf(header+8,"%u,%u",&width,&height); |
| break; |
| } |
| if (LocaleNCompare(header,"rorient:",8) == 0) |
| { |
| (void) sscanf(header+8,"%u,%u",&pel_path,&direction); |
| if (pel_path == 90) |
| orientation=5; |
| else |
| if (pel_path == 90) |
| orientation=3; |
| else |
| if (pel_path == 270) |
| orientation=7; |
| if (direction == 90) |
| orientation++; |
| break; |
| } |
| if (LocaleNCompare(header,"rtype:",6) == 0) |
| { |
| (void) sscanf(header+6,"%u",&type); |
| break; |
| } |
| break; |
| } |
| } |
| } |
| if ((width == 0) || (height == 0) || (type == 0)) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| /* |
| Write CALS facsimile document wrapped as a TIFF image file. |
| */ |
| file=(FILE *) NULL; |
| unique_file=AcquireUniqueFileResource(filename); |
| if (unique_file != -1) |
| file=fdopen(unique_file,"wb"); |
| if ((unique_file == -1) || (file == (FILE *) NULL)) |
| ThrowReaderException(FileOpenError,"UnableToCreateTemporaryFile"); |
| length=fwrite("\111\111\052\000\010\000\000\000\016\000",1,10,file); |
| length=fwrite("\376\000\003\000\001\000\000\000\000\000\000\000",1,12,file); |
| length=fwrite("\000\001\004\000\001\000\000\000",1,8,file); |
| length=WriteCALSLSBLong(file,width); |
| length=fwrite("\001\001\004\000\001\000\000\000",1,8,file); |
| length=WriteCALSLSBLong(file,height); |
| length=fwrite("\002\001\003\000\001\000\000\000\001\000\000\000",1,12,file); |
| length=fwrite("\003\001\003\000\001\000\000\000\004\000\000\000",1,12,file); |
| length=fwrite("\006\001\003\000\001\000\000\000\000\000\000\000",1,12,file); |
| length=fwrite("\021\001\003\000\001\000\000\000",1,8,file); |
| strip_offset=10+(12*14)+4+8; |
| length=WriteCALSLSBLong(file,(unsigned int) strip_offset); |
| length=fwrite("\022\001\003\000\001\000\000\000",1,8,file); |
| length=WriteCALSLSBLong(file,orientation); |
| length=fwrite("\025\001\003\000\001\000\000\000\001\000\000\000",1,12,file); |
| length=fwrite("\026\001\004\000\001\000\000\000",1,8,file); |
| length=WriteCALSLSBLong(file,width); |
| length=fwrite("\027\001\004\000\001\000\000\000\000\000\000\000",1,12,file); |
| offset=(ssize_t) ftell(file)-4; |
| length=fwrite("\032\001\005\000\001\000\000\000",1,8,file); |
| length=WriteCALSLSBLong(file,(unsigned int) (strip_offset-8)); |
| length=fwrite("\033\001\005\000\001\000\000\000",1,8,file); |
| length=WriteCALSLSBLong(file,(unsigned int) (strip_offset-8)); |
| length=fwrite("\050\001\003\000\001\000\000\000\002\000\000\000",1,12,file); |
| length=fwrite("\000\000\000\000",1,4,file); |
| length=WriteCALSLSBLong(file,density); |
| length=WriteCALSLSBLong(file,1); |
| for (length=0; (c=ReadBlobByte(image)) != EOF; length++) |
| (void) fputc(c,file); |
| (void) CloseBlob(image); |
| image=DestroyImage(image); |
| offset=(ssize_t) fseek(file,(long) offset,SEEK_SET); |
| length=WriteCALSLSBLong(file,(unsigned int) length); |
| (void) fclose(file); |
| /* |
| Read TIFF image. |
| */ |
| read_info=CloneImageInfo(image_info); |
| SetImageInfoBlob(read_info,(void *) NULL,0); |
| (void) FormatMagickString(read_info->filename,MaxTextExtent,"tiff:%.1024s", |
| filename); |
| image=ReadImage(read_info,exception); |
| read_info=DestroyImageInfo(read_info); |
| (void) RelinquishUniqueFileResource(filename); |
| if (image == (Image *) NULL) |
| return(image); |
| return(GetFirstImageInList(image)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r C A L S I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RegisterCALSImage() adds attributes for the CALS X image format to the list |
| % of supported formats. The attributes 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-memorient_y I/O, and a brief description of the format. |
| % |
| % The format of the RegisterCALSImage method is: |
| % |
| % unsigned long RegisterCALSImage(void) |
| % |
| */ |
| ModuleExport unsigned long RegisterCALSImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=SetMagickInfo("CALS"); |
| entry->decoder=(DecodeImageHandler *) ReadCALSImage; |
| entry->encoder=(EncodeImageHandler *) WriteCALSImage; |
| entry->adjoin=MagickFalse; |
| entry->magick=(IsImageFormatHandler *) IsCALS; |
| entry->description=ConstantString("Automated Interchange of Technical " |
| "Information, MIL-STD-1840A"); |
| entry->module=ConstantString("CALS"); |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r C A L S I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % UnregisterCALSImage() removes format registrations made by the |
| % CALS module from the list of supported formats. |
| % |
| % The format of the UnregisterCALSImage method is: |
| % |
| % UnregisterCALSImage(void) |
| % |
| */ |
| ModuleExport void UnregisterCALSImage(void) |
| { |
| (void) UnregisterMagickInfo("CALS"); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % W r i t e C A L S I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % WriteCALSImage() writes an image to a file in CALS type I image format. |
| % |
| % The format of the WriteCALSImage method is: |
| % |
| % MagickBooleanType WriteCALSImage(const ImageInfo *image_info, |
| % Image *image) |
| % |
| % A description of each parameter follows. |
| % |
| % o image_info: the image info. |
| % |
| % o image: The image. |
| % |
| */ |
| |
| static MagickBooleanType WriteCALSRecord(Image *image,const char *data) |
| { |
| char |
| pad[128]; |
| |
| ssize_t |
| count; |
| |
| register const char |
| *p; |
| |
| register long |
| i; |
| |
| i=0; |
| if (data != (const char *) NULL) |
| { |
| p=data; |
| for (i=0; (i < 128) && (p[i] != '\0'); i++); |
| count=WriteBlob(image,(size_t) i,(unsigned char *) data); |
| } |
| if (i < 128) |
| { |
| /* |
| Pad CALS record. |
| */ |
| i=128-i; |
| (void) ResetMagickMemory(pad,' ',(size_t) i); |
| count=WriteBlob(image,(size_t) i,(unsigned char *) pad); |
| } |
| return(count); |
| } |
| |
| static MagickBooleanType WriteCALSImage(const ImageInfo *image_info, |
| Image *image) |
| { |
| char |
| buffer[129]; |
| |
| MagickBooleanType |
| status; |
| |
| register long |
| i; |
| |
| ssize_t |
| count; |
| |
| unsigned long |
| density, |
| orient_x, |
| orient_y; |
| |
| /* |
| 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); |
| /* |
| Create standard CALS header. |
| */ |
| count=WriteCALSRecord(image,"srcdocid: NONE"); |
| count=WriteCALSRecord(image,"dstdocid: NONE"); |
| count=WriteCALSRecord(image,"txtfilid: NONE"); |
| count=WriteCALSRecord(image,"figid: NONE"); |
| count=WriteCALSRecord(image,"srcgph: NONE"); |
| count=WriteCALSRecord(image,"docls: NONE"); |
| count=WriteCALSRecord(image,"rtype: 1"); |
| switch (image->orientation) |
| { |
| case TopRightOrientation: |
| { |
| orient_x=180; |
| orient_y=270; |
| break; |
| } |
| case BottomRightOrientation: |
| { |
| orient_x=180; |
| orient_y=90; |
| break; |
| } |
| case BottomLeftOrientation: |
| orient_x=0; |
| orient_y=90; |
| break; |
| case LeftTopOrientation: |
| { |
| orient_x=270; |
| orient_y=0; |
| break; |
| } |
| case RightTopOrientation: |
| { |
| orient_x=270; |
| orient_y=180; |
| break; |
| } |
| case RightBottomOrientation: |
| { |
| orient_x=90; |
| orient_y=180; |
| break; |
| } |
| case LeftBottomOrientation: |
| { |
| orient_x=90; |
| orient_y=0; |
| break; |
| } |
| default: |
| { |
| orient_x=0; |
| orient_y=270; |
| } |
| } |
| (void) FormatMagickString(buffer,MaxTextExtent,"rorient: %03ld,%03ld", |
| orient_x,orient_y); |
| count=WriteCALSRecord(image,buffer); |
| (void) FormatMagickString(buffer,MaxTextExtent,"rpelcnt: %06lu,%06lu", |
| image->columns,image->rows); |
| count=WriteCALSRecord(image,buffer); |
| density=200; |
| if (image_info->density != (char *) NULL) |
| { |
| GeometryInfo |
| geometry_info; |
| |
| (void) ParseGeometry(image_info->density,&geometry_info); |
| density=(unsigned long) (geometry_info.rho+0.5); |
| } |
| (void) FormatMagickString(buffer,MaxTextExtent,"rdensty: %04lu",density); |
| count=WriteCALSRecord(image,buffer); |
| count=WriteCALSRecord(image,"notes: NONE"); |
| (void) ResetMagickMemory(buffer,' ',128); |
| for (i=0; i < 5; i++) |
| (void) WriteBlob(image,128,(unsigned char *) buffer); |
| status=Huffman2DEncodeImage(image_info,image,image); |
| (void) CloseBlob(image); |
| return(status); |
| } |
