utilities/magick.c

/*
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%       Perform "Magick" on Images via the Command Line Interface             %
%                                                                             %
%                             Dragon Computing                                %
%                             Anthony Thyssen                                 %
%                               January 2012                                  %
%                                                                             %
%                                                                             %
%  Copyright 1999-2020 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/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.                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Read CLI arguments, script files, and pipelines, to provide options that
%  manipulate images from many different formats.
%
*/

/*
  Include declarations.
*/
#include "MagickWand/studio.h"
#include "MagickWand/MagickWand.h"

/*
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*/

static int MagickMain(int argc,char **argv)
{
#define MagickCommandSize(name,use_metadata,command) \
  { (name), sizeof(name)-1, (use_metadata), (command) }

  typedef struct _CommandInfo
  {
    const char
      *client_name;

    size_t
      extent;

    MagickBooleanType
      use_metadata;

    MagickCommand
      command;
  } CommandInfo;

  const CommandInfo
    MagickCommands[] =
    {
      MagickCommandSize("magick", MagickFalse, MagickImageCommand),
      MagickCommandSize("convert", MagickFalse, ConvertImageCommand),
      MagickCommandSize("composite", MagickFalse, CompositeImageCommand),
      MagickCommandSize("identify", MagickTrue, IdentifyImageCommand),
      MagickCommandSize("animate", MagickFalse, AnimateImageCommand),
      MagickCommandSize("compare", MagickTrue, CompareImagesCommand),
      MagickCommandSize("conjure", MagickFalse, ConjureImageCommand),
      MagickCommandSize("display", MagickFalse, DisplayImageCommand),
      MagickCommandSize("import", MagickFalse, ImportImageCommand),
      MagickCommandSize("mogrify", MagickFalse, MogrifyImageCommand),
      MagickCommandSize("montage", MagickFalse, MontageImageCommand),
      MagickCommandSize("stream", MagickFalse, StreamImageCommand)
    };

  char
    client_name[MagickPathExtent],
    *metadata;

  ExceptionInfo
    *exception;

  ImageInfo
    *image_info;

  int
    exit_code,
    offset;

  MagickBooleanType
    status;

  register ssize_t
    i;

  size_t
    number_commands;

  MagickCoreGenesis(*argv,MagickTrue);
  exception=AcquireExceptionInfo();
  image_info=AcquireImageInfo();
  GetPathComponent(argv[0],TailPath,client_name);
  number_commands=sizeof(MagickCommands)/sizeof(MagickCommands[0]);
  for (i=0; i < (ssize_t) number_commands; i++)
  {
    offset=LocaleNCompare(MagickCommands[i].client_name,client_name,
      MagickCommands[i].extent);
    if (offset == 0)
      break;
  }
  i%=(number_commands);
  if ((i == 0) && (argc > 1))
    {
      for (i=1; i < (ssize_t) number_commands; i++)
      {
        offset=LocaleCompare(MagickCommands[i].client_name,argv[1]);
        if (offset == 0)
          {
            argc--;
            argv++;
            break;
          }
      }
      i%=number_commands;
    }
  metadata=(char *) NULL;
  status=MagickCommandGenesis(image_info,MagickCommands[i].command,argc,argv,
    MagickCommands[i].use_metadata ? &metadata : (char **) NULL,exception);
  if (metadata != (char *) NULL)
    {
      (void) fputs(metadata,stdout);
      metadata=DestroyString(metadata);
    }
  if (MagickCommands[i].command != CompareImagesCommand)
    exit_code=status != MagickFalse ? 0 : 1;
  else
    {
      if (status == MagickFalse)
        exit_code=2;
      else
        {
          const char
            *option;

          option=GetImageOption(image_info,"compare:dissimilar");
          exit_code=IsStringTrue(option) ? 1 : 0;
        }
    }
  image_info=DestroyImageInfo(image_info);
  exception=DestroyExceptionInfo(exception);
  MagickCoreTerminus();
  return(exit_code);
}

#if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__CYGWIN__) || defined(__MINGW32__)
int main(int argc,char **argv)
{
  return(MagickMain(argc,argv));
}
#else
int wmain(int argc,wchar_t *argv[])
{
  char
    **utf8;

  int
    status;

  register int
    i;

  utf8=NTArgvToUTF8(argc,argv);
  status=MagickMain(argc,utf8);
  for (i=0; i < argc; i++)
    utf8[i]=DestroyString(utf8[i]);
  utf8=(char **) RelinquishMagickMemory(utf8);
  return(status);
}
#endif