/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%                         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 Raster Group 1 Image Format                 %

%                                                                             %

%                              Software Design                                %

%                                   Cristy                                    %

%                                 July 1992                                   %

%                                                                             %

%                                                                             %

%  Copyright @ 1999 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                                            %

%                                                                             %

%    https://imagemagick.org/license/                                         %

%                                                                             %

%  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 "MagickCore/studio.h"

#include "MagickCore/blob.h"

#include "MagickCore/blob-private.h"

#include "MagickCore/cache.h"

#include "MagickCore/colorspace.h"

#include "MagickCore/constitute.h"

#include "MagickCore/exception.h"

#include "MagickCore/exception-private.h"

#include "MagickCore/geometry.h"

#include "MagickCore/image.h"

#include "MagickCore/image-private.h"

#include "MagickCore/list.h"

#include "MagickCore/magick.h"

#include "MagickCore/memory_.h"

#include "MagickCore/monitor.h"

#include "MagickCore/monitor-private.h"

#include "MagickCore/nt-base-private.h"

#include "MagickCore/option.h"

#include "MagickCore/quantum-private.h"

#include "MagickCore/resource_.h"

#include "MagickCore/static.h"

#include "MagickCore/string_.h"

#include "MagickCore/string-private.h"

#include "MagickCore/module.h"

#if defined(MAGICKCORE_TIFF_DELEGATE)

/*

 Forward declarations.

*/

static MagickBooleanType

  WriteCALSImage(const ImageInfo *,Image *,ExceptionInfo *);

#endif

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   I s C A L S                                                               %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  IsCALS() returns MagickTrue if the image format type, identified by the

%  magick string, is CALS Raster Group 1.

%

%  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 CALS Raster Group 1 image format 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 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 Image *ReadCALSImage(const ImageInfo *image_info,

  ExceptionInfo *exception)

{

  char

    filename[MagickPathExtent],

    header[MagickPathExtent],

    message[MagickPathExtent];

  FILE

    *file;

  Image

    *image;

  ImageInfo

    *read_info;

  int

    c,

    unique_file;

  MagickBooleanType

    status;

  ssize_t

    i;

  unsigned long

    density,

    direction,

    height,

    orientation,

    pel_path,

    type,

    width;

  /*

    Open image file.

  */

  assert(image_info != (const ImageInfo *) NULL);

  assert(image_info->signature == MagickCoreSignature);

  assert(exception != (ExceptionInfo *) NULL);

  assert(exception->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",

      image_info->filename);

  image=AcquireImage(image_info,exception);

  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);

  if (status == MagickFalse)

    {

      image=DestroyImageList(image);

      return((Image *) NULL);

    }

  /*

    Read CALS header.

  */

  (void) memset(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) MagickSscanf(header+8,"%lu",&density);

            break;

          }

        if (LocaleNCompare(header,"rpelcnt:",8) == 0)

          {

            (void) MagickSscanf(header+8,"%lu,%lu",&width,&height);

            break;

          }

        if (LocaleNCompare(header,"rorient:",8) == 0)

          {

            (void) MagickSscanf(header+8,"%lu,%lu",&pel_path,&direction);

            if (pel_path == 90)

              orientation=5;

            else

              if (pel_path == 180)

                orientation=3;

              else

                if (pel_path == 270)

                  orientation=7;

            if (direction == 90)

              orientation++;

            break;

          }

        if (LocaleNCompare(header,"rtype:",6) == 0)

          {

            (void) MagickSscanf(header+6,"%lu",&type);

            break;

          }

        break;

      }

    }

  }

  /*

    Read CALS pixels.

  */

  file=(FILE *) NULL;

  unique_file=AcquireUniqueFileResource(filename);

  if (unique_file != -1)

    file=fdopen(unique_file,"rb+");

  if ((unique_file == -1) || (file == (FILE *) NULL))

    ThrowImageException(FileOpenError,"UnableToCreateTemporaryFile");

  while ((c=ReadBlobByte(image)) != EOF)

    if (fputc(c,file) != c)

      break;

  if (fseek(file,0,SEEK_SET) != 0)

    ThrowImageException(FileOpenError,"UnableToCreateTemporaryFile");

  (void) CloseBlob(image);

  image=DestroyImage(image);

  read_info=CloneImageInfo(image_info);

  read_info->file=file;

  SetImageInfoBlob(read_info,(void *) NULL,0);

  (void) FormatLocaleString(read_info->filename,MagickPathExtent,"group4:%s",

    filename);

  (void) FormatLocaleString(message,MagickPathExtent,"%lux%lu",width,height);

  (void) CloneString(&read_info->size,message);

  (void) FormatLocaleString(message,MagickPathExtent,"%lu",density);

  (void) CloneString(&read_info->density,message);

  read_info->orientation=(OrientationType) orientation;

  image=ReadImage(read_info,exception);

  read_info->file=(FILE *) NULL;

  if (image != (Image *) NULL)

    {

      (void) CopyMagickString(image->filename,image_info->filename,

        MagickPathExtent);

      (void) CopyMagickString(image->magick_filename,image_info->filename,

        MagickPathExtent);

      (void) CopyMagickString(image->magick,"CALS",MagickPathExtent);

    }

  read_info=DestroyImageInfo(read_info);

  (void) RelinquishUniqueFileResource(filename);

  return(image);

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   R e g i s t e r C A L S I m a g e                                         %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  RegisterCALSImage() adds attributes for the CALS Raster Group 1 image file

%  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-memory I/O, and a brief description

%  of the format.

%

%  The format of the RegisterCALSImage method is:

%

%      size_t RegisterCALSImage(void)

%

*/

ModuleExport size_t RegisterCALSImage(void)

{

#define CALSDescription  "Continuous Acquisition and Life-cycle Support Type 1"

#define CALSNote  "Specified in MIL-R-28002 and MIL-PRF-28002"

  MagickInfo

    *entry;

  entry=AcquireMagickInfo("CALS","CAL",CALSDescription);

  entry->decoder=(DecodeImageHandler *) ReadCALSImage;

#if defined(MAGICKCORE_TIFF_DELEGATE)

  entry->encoder=(EncodeImageHandler *) WriteCALSImage;

#endif

  entry->flags^=CoderAdjoinFlag;

  entry->magick=(IsImageFormatHandler *) IsCALS;

  entry->note=ConstantString(CALSNote);

  (void) RegisterMagickInfo(entry);

  entry=AcquireMagickInfo("CALS","CALS",CALSDescription);

  entry->decoder=(DecodeImageHandler *) ReadCALSImage;

#if defined(MAGICKCORE_TIFF_DELEGATE)

  entry->encoder=(EncodeImageHandler *) WriteCALSImage;

#endif

  entry->flags^=CoderAdjoinFlag;

  entry->magick=(IsImageFormatHandler *) IsCALS;

  entry->note=ConstantString(CALSNote);

  (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("CAL");

  (void) UnregisterMagickInfo("CALS");

}

#if defined(MAGICKCORE_TIFF_DELEGATE)

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   W r i t e C A L S I m a g e                                               %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  WriteCALSImage() writes an image to a file in CALS Raster Group 1 image

%  format.

%

%  The format of the WriteCALSImage method is:

%

%      MagickBooleanType WriteCALSImage(const ImageInfo *image_info,

%        Image *image,ExceptionInfo *exception)

%

%  A description of each parameter follows.

%

%    o image_info: the image info.

%

%    o image:  The image.

%

%    o exception: return any errors or warnings in this structure.

%

*/

static ssize_t WriteCALSRecord(Image *image,const char *data)

{

  char

    pad[128];

  const char

    *p;

  ssize_t

    i;

  ssize_t

    count;

  i=0;

  count=0;

  if (data != (const char *) NULL)

    {

      p=data;

      for (i=0; (i < 128) && (p[i] != '\0'); i++);

      count=WriteBlob(image,(size_t) i,(const unsigned char *) data);

    }

  if (i < 128)

    {

      i=128-i;

      (void) memset(pad,' ',(size_t) i);

      count=WriteBlob(image,(size_t) i,(const unsigned char *) pad);

    }

  return(count);

}

static MagickBooleanType WriteCALSImage(const ImageInfo *image_info,

  Image *image,ExceptionInfo *exception)

{

  char

    header[129];

  Image

    *group4_image;

  ImageInfo

    *write_info;

  MagickBooleanType

    status;

  ssize_t

    i;

  size_t

    density,

    length,

    orient_x,

    orient_y;

  ssize_t

    count;

  unsigned char

    *group4;

  /*

    Open output image file.

  */

  assert(image_info != (const ImageInfo *) NULL);

  assert(image_info->signature == MagickCoreSignature);

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  assert(exception != (ExceptionInfo *) NULL);

  assert(exception->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

  status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);

  if (status == MagickFalse)

    return(status);

  /*

    Create standard CALS header.

  */

  count=WriteCALSRecord(image,"srcdocid: NONE");

  (void) count;

  count=WriteCALSRecord(image,"dstdocid: NONE");

  count=WriteCALSRecord(image,"txtfilid: NONE");

  count=WriteCALSRecord(image,"figid: NONE");

  count=WriteCALSRecord(image,"srcgph: NONE");

  count=WriteCALSRecord(image,"doccls: NONE");

  count=WriteCALSRecord(image,"rtype: 1");

  orient_x=0;

  orient_y=0;

  switch (image->orientation)

  {

    case TopRightOrientation:

    {

      orient_x=180;

      orient_y=270;

      break;

    }

    case BottomRightOrientation:

    {

      orient_x=180;

      orient_y=90;

      break;

    }

    case BottomLeftOrientation:

    {

      orient_y=90;

      break;

    }

    case LeftTopOrientation:

    {

      orient_x=270;

      break;

    }

    case RightTopOrientation:

    {

      orient_x=270;

      orient_y=180;

      break;

    }

    case RightBottomOrientation:

    {

      orient_x=90;

      orient_y=180;

      break;

    }

    case LeftBottomOrientation:

    {

      orient_x=90;

      break;

    }

    default:

    {

      orient_y=270;

      break;

    }

  }

  (void) FormatLocaleString(header,sizeof(header),"rorient: %03ld,%03ld",

    (long) orient_x,(long) orient_y);

  count=WriteCALSRecord(image,header);

  (void) FormatLocaleString(header,sizeof(header),"rpelcnt: %06lu,%06lu",

    (unsigned long) image->columns,(unsigned long) image->rows);

  count=WriteCALSRecord(image,header);  

  density=200;

  if (image_info->density != (char *) NULL)

    {

      GeometryInfo

        geometry_info;

      (void) ParseGeometry(image_info->density,&geometry_info);

      density=(size_t) floor(geometry_info.rho+0.5);

    }

  (void) FormatLocaleString(header,sizeof(header),"rdensty: %04lu",

    (unsigned long) density);

  count=WriteCALSRecord(image,header);

  count=WriteCALSRecord(image,"notes: NONE");

  (void) memset(header,' ',128);

  for (i=0; i < 5; i++)

    (void) WriteBlob(image,128,(unsigned char *) header);

  /*

    Write CALS pixels.

  */

  write_info=CloneImageInfo(image_info);

  (void) CopyMagickString(write_info->filename,"GROUP4:",MagickPathExtent);

  (void) CopyMagickString(write_info->magick,"GROUP4",MagickPathExtent);

  group4_image=CloneImage(image,0,0,MagickTrue,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,

    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);

  if (CloseBlob(image) == MagickFalse)

    status=MagickFalse;

  return(status);

}

#endif