forked from openkylin/imagemagick
589 lines
19 KiB
C
589 lines
19 KiB
C
/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% CCCC AAA L SSSSS %
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% C A A L SS %
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% C AAAAA L SSS %
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% C A A L SS %
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% CCCC A A LLLLL SSSSS %
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% %
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% %
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% Read/Write CALS Raster Group 1 Image Format %
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% %
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% Software Design %
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% Cristy %
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% July 1992 %
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% %
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% %
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% Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% https://imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% The CALS raster format is a standard developed by the Computer Aided
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% Acquisition and Logistics Support (CALS) office of the United States
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% Department of Defense to standardize graphics data interchange for
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% electronic publishing, especially in the areas of technical graphics,
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% CAD/CAM, and image processing applications.
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%
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*/
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/*
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Include declarations.
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*/
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#include "magick/studio.h"
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#include "magick/blob.h"
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#include "magick/blob-private.h"
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#include "magick/cache.h"
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#include "magick/colorspace.h"
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#include "magick/exception.h"
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#include "magick/exception-private.h"
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#include "magick/geometry.h"
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#include "magick/image.h"
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#include "magick/image-private.h"
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#include "magick/list.h"
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#include "magick/magick.h"
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#include "magick/memory_.h"
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#include "magick/monitor.h"
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#include "magick/monitor-private.h"
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#include "magick/option.h"
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#include "magick/pixel-accessor.h"
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#include "magick/quantum-private.h"
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#include "magick/resource_.h"
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#include "magick/static.h"
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#include "magick/string_.h"
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#include "magick/module.h"
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#if defined(MAGICKCORE_TIFF_DELEGATE)
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WriteCALSImage(const ImageInfo *,Image *);
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#endif
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% I s C A L S %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% IsCALS() returns MagickTrue if the image format type, identified by the
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% magick string, is CALS Raster Group 1.
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%
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% The format of the IsCALS method is:
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%
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% MagickBooleanType IsCALS(const unsigned char *magick,const size_t length)
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%
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% A description of each parameter follows:
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%
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% o magick: compare image format pattern against these bytes.
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%
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% o length: Specifies the length of the magick string.
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%
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*/
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static MagickBooleanType IsCALS(const unsigned char *magick,const size_t length)
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{
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if (length < 128)
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return(MagickFalse);
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if (LocaleNCompare((const char *) magick,"version: MIL-STD-1840",21) == 0)
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return(MagickTrue);
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if (LocaleNCompare((const char *) magick,"srcdocid:",9) == 0)
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return(MagickTrue);
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if (LocaleNCompare((const char *) magick,"rorient:",8) == 0)
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return(MagickTrue);
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return(MagickFalse);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e a d C A L S I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% ReadCALSImage() reads an CALS Raster Group 1 image format image file and
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% returns it. It allocates the memory necessary for the new Image structure
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% and returns a pointer to the new image.
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%
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% The format of the ReadCALSImage method is:
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%
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% Image *ReadCALSImage(const ImageInfo *image_info,
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% ExceptionInfo *exception)
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%
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% A description of each parameter follows:
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%
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% o image_info: the image info.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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static Image *ReadCALSImage(const ImageInfo *image_info,
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ExceptionInfo *exception)
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{
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char
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filename[MaxTextExtent],
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header[129],
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message[MaxTextExtent];
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FILE
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*file;
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Image
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*image;
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ImageInfo
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*read_info;
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int
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c,
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unique_file;
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MagickBooleanType
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status;
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ssize_t
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i;
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unsigned long
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density,
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direction,
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height,
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orientation,
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pel_path,
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type,
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width;
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/*
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Open image file.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickCoreSignature);
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if (image_info->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
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image_info->filename);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickCoreSignature);
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image=AcquireImage(image_info);
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status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
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if (status == MagickFalse)
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{
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image=DestroyImageList(image);
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return((Image *) NULL);
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}
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/*
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Read CALS header.
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*/
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(void) memset(header,0,sizeof(header));
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density=0;
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direction=0;
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orientation=1;
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pel_path=0;
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type=1;
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width=0;
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height=0;
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for (i=0; i < 16; i++)
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{
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if (ReadBlob(image,128,(unsigned char *) header) != 128)
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break;
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switch (*header)
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{
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case 'R':
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case 'r':
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{
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if (LocaleNCompare(header,"rdensty:",8) == 0)
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{
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(void) sscanf(header+8,"%lu",&density);
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break;
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}
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if (LocaleNCompare(header,"rpelcnt:",8) == 0)
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{
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(void) sscanf(header+8,"%lu,%lu",&width,&height);
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break;
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}
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if (LocaleNCompare(header,"rorient:",8) == 0)
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{
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(void) sscanf(header+8,"%lu,%lu",&pel_path,&direction);
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if (pel_path == 90)
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orientation=5;
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else
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if (pel_path == 180)
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orientation=3;
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else
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if (pel_path == 270)
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orientation=7;
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if (direction == 90)
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orientation++;
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break;
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}
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if (LocaleNCompare(header,"rtype:",6) == 0)
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{
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(void) sscanf(header+6,"%lu",&type);
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break;
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}
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break;
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}
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}
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}
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/*
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Read CALS pixels.
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*/
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file=(FILE *) NULL;
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unique_file=AcquireUniqueFileResource(filename);
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if (unique_file != -1)
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file=fdopen(unique_file,"wb");
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if ((unique_file == -1) || (file == (FILE *) NULL))
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ThrowImageException(FileOpenError,"UnableToCreateTemporaryFile");
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while ((c=ReadBlobByte(image)) != EOF)
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if (fputc(c,file) != c)
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break;
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(void) fclose(file);
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(void) CloseBlob(image);
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image=DestroyImage(image);
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read_info=CloneImageInfo(image_info);
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SetImageInfoBlob(read_info,(void *) NULL,0);
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(void) FormatLocaleString(read_info->filename,MaxTextExtent,"group4:%s",
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filename);
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(void) FormatLocaleString(message,MaxTextExtent,"%lux%lu",width,height);
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read_info->size=ConstantString(message);
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(void) FormatLocaleString(message,MaxTextExtent,"%lu",density);
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read_info->density=ConstantString(message);
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read_info->orientation=(OrientationType) orientation;
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image=ReadImage(read_info,exception);
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if (image != (Image *) NULL)
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{
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(void) CopyMagickString(image->filename,image_info->filename,
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MaxTextExtent);
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(void) CopyMagickString(image->magick_filename,image_info->filename,
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MaxTextExtent);
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(void) CopyMagickString(image->magick,"CALS",MaxTextExtent);
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}
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read_info=DestroyImageInfo(read_info);
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(void) RelinquishUniqueFileResource(filename);
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return(image);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e g i s t e r C A L S I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% RegisterCALSImage() adds attributes for the CALS Raster Group 1 image file
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% image format to the list of supported formats. The attributes include the
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% image format tag, a method to read and/or write the format, whether the
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% format supports the saving of more than one frame to the same file or blob,
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% whether the format supports native in-memory I/O, and a brief description
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% of the format.
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%
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% The format of the RegisterCALSImage method is:
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%
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% size_t RegisterCALSImage(void)
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%
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*/
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ModuleExport size_t RegisterCALSImage(void)
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{
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MagickInfo
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*entry;
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static const char
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*CALSDescription=
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{
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"Continuous Acquisition and Life-cycle Support Type 1"
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},
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*CALSNote=
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{
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"Specified in MIL-R-28002 and MIL-PRF-28002"
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};
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entry=SetMagickInfo("CAL");
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entry->decoder=(DecodeImageHandler *) ReadCALSImage;
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#if defined(MAGICKCORE_TIFF_DELEGATE)
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entry->encoder=(EncodeImageHandler *) WriteCALSImage;
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#endif
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entry->adjoin=MagickFalse;
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entry->magick=(IsImageFormatHandler *) IsCALS;
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entry->description=ConstantString(CALSDescription);
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entry->note=ConstantString(CALSNote);
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entry->magick_module=ConstantString("CALS");
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(void) RegisterMagickInfo(entry);
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entry=SetMagickInfo("CALS");
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entry->decoder=(DecodeImageHandler *) ReadCALSImage;
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#if defined(MAGICKCORE_TIFF_DELEGATE)
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entry->encoder=(EncodeImageHandler *) WriteCALSImage;
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#endif
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entry->adjoin=MagickFalse;
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entry->magick=(IsImageFormatHandler *) IsCALS;
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entry->description=ConstantString(CALSDescription);
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entry->note=ConstantString(CALSNote);
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entry->magick_module=ConstantString("CALS");
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(void) RegisterMagickInfo(entry);
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return(MagickImageCoderSignature);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% U n r e g i s t e r C A L S I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% UnregisterCALSImage() removes format registrations made by the
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% CALS module from the list of supported formats.
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%
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% The format of the UnregisterCALSImage method is:
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%
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% UnregisterCALSImage(void)
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%
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*/
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ModuleExport void UnregisterCALSImage(void)
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{
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(void) UnregisterMagickInfo("CAL");
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(void) UnregisterMagickInfo("CALS");
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}
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#if defined(MAGICKCORE_TIFF_DELEGATE)
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% W r i t e C A L S I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% WriteCALSImage() writes an image to a file in CALS Raster Group 1 image
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% format.
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%
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% The format of the WriteCALSImage method is:
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%
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% MagickBooleanType WriteCALSImage(const ImageInfo *image_info,
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% Image *image)
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%
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% A description of each parameter follows.
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%
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% o image_info: the image info.
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%
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% o image: The image.
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%
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*/
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static ssize_t WriteCALSRecord(Image *image,const char *data)
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{
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char
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pad[128];
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const char
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*p;
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ssize_t
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i;
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ssize_t
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count;
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i=0;
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count=0;
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if (data != (const char *) NULL)
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{
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p=data;
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for (i=0; (i < 128) && (p[i] != '\0'); i++);
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count=WriteBlob(image,(size_t) i,(const unsigned char *) data);
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}
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if (i < 128)
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{
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i=128-i;
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(void) memset(pad,' ',(size_t) i);
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count=WriteBlob(image,(size_t) i,(const unsigned char *) pad);
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}
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return(count);
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}
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static MagickBooleanType WriteCALSImage(const ImageInfo *image_info,
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Image *image)
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{
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char
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header[MaxTextExtent];
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Image
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*group4_image;
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ImageInfo
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*write_info;
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MagickBooleanType
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status;
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ssize_t
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i;
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size_t
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density,
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length,
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orient_x,
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orient_y;
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ssize_t
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count;
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unsigned char
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*group4;
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/*
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Open output image file.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickCoreSignature);
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assert(image != (Image *) NULL);
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assert(image->signature == MagickCoreSignature);
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if (image->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
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status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
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if (status == MagickFalse)
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return(status);
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/*
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Create standard CALS header.
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*/
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count=WriteCALSRecord(image,"srcdocid: NONE");
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(void) count;
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count=WriteCALSRecord(image,"dstdocid: NONE");
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count=WriteCALSRecord(image,"txtfilid: NONE");
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count=WriteCALSRecord(image,"figid: NONE");
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count=WriteCALSRecord(image,"srcgph: NONE");
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count=WriteCALSRecord(image,"doccls: NONE");
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count=WriteCALSRecord(image,"rtype: 1");
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orient_x=0;
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orient_y=0;
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switch (image->orientation)
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{
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case TopRightOrientation:
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{
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orient_x=180;
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orient_y=270;
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break;
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}
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case BottomRightOrientation:
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{
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orient_x=180;
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orient_y=90;
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break;
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}
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case BottomLeftOrientation:
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{
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orient_y=90;
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break;
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}
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case LeftTopOrientation:
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{
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orient_x=270;
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break;
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}
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case RightTopOrientation:
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{
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orient_x=270;
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orient_y=180;
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break;
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}
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case RightBottomOrientation:
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{
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orient_x=90;
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orient_y=180;
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break;
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}
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case LeftBottomOrientation:
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{
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orient_x=90;
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break;
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}
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default:
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{
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orient_y=270;
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break;
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}
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}
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(void) FormatLocaleString(header,sizeof(header),"rorient: %03ld,%03ld",
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(long) orient_x,(long) orient_y);
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count=WriteCALSRecord(image,header);
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(void) FormatLocaleString(header,sizeof(header),"rpelcnt: %06lu,%06lu",
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(unsigned long) image->columns,(unsigned long) image->rows);
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count=WriteCALSRecord(image,header);
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density=200;
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if (image_info->density != (char *) NULL)
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{
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GeometryInfo
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geometry_info;
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(void) ParseGeometry(image_info->density,&geometry_info);
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density=(size_t) floor(geometry_info.rho+0.5);
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}
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(void) FormatLocaleString(header,sizeof(header),"rdensty: %04lu",
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(unsigned long) density);
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count=WriteCALSRecord(image,header);
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count=WriteCALSRecord(image,"notes: NONE");
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(void) memset(header,' ',128);
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for (i=0; i < 5; i++)
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(void) WriteBlob(image,128,(unsigned char *) header);
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/*
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Write CALS pixels.
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*/
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write_info=CloneImageInfo(image_info);
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(void) CopyMagickString(write_info->filename,"GROUP4:",MaxTextExtent);
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(void) CopyMagickString(write_info->magick,"GROUP4",MaxTextExtent);
|
||
group4_image=CloneImage(image,0,0,MagickTrue,&image->exception);
|
||
if (group4_image == (Image *) NULL)
|
||
{
|
||
write_info=DestroyImageInfo(write_info);
|
||
(void) CloseBlob(image);
|
||
return(MagickFalse);
|
||
}
|
||
group4=(unsigned char *) ImageToBlob(write_info,group4_image,&length,
|
||
&image->exception);
|
||
group4_image=DestroyImage(group4_image);
|
||
if (group4 == (unsigned char *) NULL)
|
||
{
|
||
write_info=DestroyImageInfo(write_info);
|
||
(void) CloseBlob(image);
|
||
return(MagickFalse);
|
||
}
|
||
write_info=DestroyImageInfo(write_info);
|
||
if (WriteBlob(image,length,group4) != (ssize_t) length)
|
||
status=MagickFalse;
|
||
group4=(unsigned char *) RelinquishMagickMemory(group4);
|
||
(void) CloseBlob(image);
|
||
return(status);
|
||
}
|
||
#endif
|