Exemplo n.º 1
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   R e a d X I m a g e                                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  ReadXImage() reads an image from an X window.
%
%  The format of the ReadXImage method is:
%
%      Image *ReadXImage(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 *ReadXImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
  XImportInfo
    ximage_info;

  (void) exception;
  XGetImportInfo(&ximage_info);
  ximage_info.screen=IsStringTrue(GetImageOption(image_info,"x:screen"));
  ximage_info.silent=IsStringTrue(GetImageOption(image_info,"x:silent"));
  return(XImportImage(image_info,&ximage_info,exception));
}
Exemplo n.º 2
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   L o a d C o d e r L i s t                                                 %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  LoadCoderCache() loads the coder configurations which provides a
%  mapping between coder attributes and a coder name.
%
%  The format of the LoadCoderCache coder is:
%
%      MagickBooleanType LoadCoderCache(SplayTreeInfo *coder_cache,
%        const char *xml,const char *filename,const size_t depth,
%        ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o xml:  The coder list in XML format.
%
%    o filename:  The coder list filename.
%
%    o depth: depth of <include /> statements.
%
%    o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType LoadCoderCache(SplayTreeInfo *coder_cache,
  const char *xml,const char *filename,const size_t depth,
  ExceptionInfo *exception)
{
  char
    keyword[MagickPathExtent],
    *token;

  const char
    *q;

  CoderInfo
    *coder_info;

  MagickStatusType
    status;

  /*
    Load the coder map file.
  */
  (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
    "Loading coder configuration file \"%s\" ...",filename);
  if (xml == (const char *) NULL)
    return(MagickFalse);
  status=MagickTrue;
  coder_info=(CoderInfo *) NULL;
  token=AcquireString(xml);
  for (q=(char *) xml; *q != '\0'; )
  {
    /*
      Interpret XML.
    */
    GetMagickToken(q,&q,token);
    if (*token == '\0')
      break;
    (void) CopyMagickString(keyword,token,MagickPathExtent);
    if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
      {
        /*
          Doctype element.
        */
        while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
          GetMagickToken(q,&q,token);
        continue;
      }
    if (LocaleNCompare(keyword,"<!--",4) == 0)
      {
        /*
          Comment element.
        */
        while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
          GetMagickToken(q,&q,token);
        continue;
      }
    if (LocaleCompare(keyword,"<include") == 0)
      {
        /*
          Include element.
        */
        while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
        {
          (void) CopyMagickString(keyword,token,MagickPathExtent);
          GetMagickToken(q,&q,token);
          if (*token != '=')
            continue;
          GetMagickToken(q,&q,token);
          if (LocaleCompare(keyword,"file") == 0)
            {
              if (depth > 200)
                (void) ThrowMagickException(exception,GetMagickModule(),
                  ConfigureError,"IncludeNodeNestedTooDeeply","`%s'",token);
              else
                {
                  char
                    path[MagickPathExtent],
                    *file_xml;

                  GetPathComponent(filename,HeadPath,path);
                  if (*path != '\0')
                    (void) ConcatenateMagickString(path,DirectorySeparator,
                      MagickPathExtent);
                  if (*token == *DirectorySeparator)
                    (void) CopyMagickString(path,token,MagickPathExtent);
                  else
                    (void) ConcatenateMagickString(path,token,MagickPathExtent);
                  file_xml=FileToXML(path,~0UL);
                  if (file_xml != (char *) NULL)
                    {
                      status&=LoadCoderCache(coder_cache,file_xml,path,depth+1,
                        exception);
                      file_xml=DestroyString(file_xml);
                    }
                }
            }
        }
        continue;
      }
    if (LocaleCompare(keyword,"<coder") == 0)
      {
        /*
          Coder element.
        */
        coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
        if (coder_info == (CoderInfo *) NULL)
          ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
        (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
        coder_info->path=ConstantString(filename);
        coder_info->exempt=MagickFalse;
        coder_info->signature=MagickCoreSignature;
        continue;
      }
    if (coder_info == (CoderInfo *) NULL)
      continue;
    if (LocaleCompare(keyword,"/>") == 0)
      {
        status=AddValueToSplayTree(coder_cache,ConstantString(
          coder_info->magick),coder_info);
        if (status == MagickFalse)
          (void) ThrowMagickException(exception,GetMagickModule(),
            ResourceLimitError,"MemoryAllocationFailed","`%s'",
            coder_info->magick);
        coder_info=(CoderInfo *) NULL;
        continue;
      }
    GetMagickToken(q,(const char **) NULL,token);
    if (*token != '=')
      continue;
    GetMagickToken(q,&q,token);
    GetMagickToken(q,&q,token);
    switch (*keyword)
    {
      case 'M':
      case 'm':
      {
        if (LocaleCompare((char *) keyword,"magick") == 0)
          {
            coder_info->magick=ConstantString(token);
            break;
          }
        break;
      }
      case 'N':
      case 'n':
      {
        if (LocaleCompare((char *) keyword,"name") == 0)
          {
            coder_info->name=ConstantString(token);
            break;
          }
        break;
      }
      case 'S':
      case 's':
      {
        if (LocaleCompare((char *) keyword,"stealth") == 0)
          {
            coder_info->stealth=IsStringTrue(token);
            break;
          }
        break;
      }
      default:
        break;
    }
  }
  token=(char *) RelinquishMagickMemory(token);
  return(status != 0 ? MagickTrue : MagickFalse);
}
Exemplo n.º 3
0
static MagickBooleanType LoadTypeList(const char *xml,const char *filename,
  const size_t depth,ExceptionInfo *exception)
{
  char
    font_path[MaxTextExtent],
    keyword[MaxTextExtent],
    *token;

  const char
    *q;

  MagickBooleanType
    status;

  TypeInfo
    *type_info;

  /*
    Load the type map file.
  */
  (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
    "Loading type configure file \"%s\" ...",filename);
  if (xml == (const char *) NULL)
    return(MagickFalse);
  if (type_list == (SplayTreeInfo *) NULL)
    {
      type_list=NewSplayTree(CompareSplayTreeString,(void *(*)(void *)) NULL,
        DestroyTypeNode);
      if (type_list == (SplayTreeInfo *) NULL)
        {
          ThrowFileException(exception,ResourceLimitError,
            "MemoryAllocationFailed",filename);
          return(MagickFalse);
        }
    }
  status=MagickTrue;
  type_info=(TypeInfo *) NULL;
  token=AcquireString(xml);
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
  /*
    Determine the Ghostscript font path.
  */
  *font_path='\0';
  if (NTGhostscriptFonts(font_path,MaxTextExtent-2))
    (void) ConcatenateMagickString(font_path,DirectorySeparator,MaxTextExtent);
#endif
  for (q=(char *) xml; *q != '\0'; )
  {
    /*
      Interpret XML.
    */
    GetMagickToken(q,&q,token);
    if (*token == '\0')
      break;
    (void) CopyMagickString(keyword,token,MaxTextExtent);
    if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
      {
        /*
          Doctype element.
        */
        while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
          GetMagickToken(q,&q,token);
        continue;
      }
    if (LocaleNCompare(keyword,"<!--",4) == 0)
      {
        /*
          Comment element.
        */
        while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
          GetMagickToken(q,&q,token);
        continue;
      }
    if (LocaleCompare(keyword,"<include") == 0)
      {
        /*
          Include element.
        */
        while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
        {
          (void) CopyMagickString(keyword,token,MaxTextExtent);
          GetMagickToken(q,&q,token);
          if (*token != '=')
            continue;
          GetMagickToken(q,&q,token);
          if (LocaleCompare(keyword,"file") == 0)
            {
              if (depth > 200)
                (void) ThrowMagickException(exception,GetMagickModule(),
                  ConfigureError,"IncludeNodeNestedTooDeeply","`%s'",token);
              else
                {
                  char
                    path[MaxTextExtent],
                    *xml;

                  ExceptionInfo
                    *sans_exception;

                  *path='\0';
                  GetPathComponent(filename,HeadPath,path);
                  if (*path != '\0')
                    (void) ConcatenateMagickString(path,DirectorySeparator,
                      MaxTextExtent);
                  if (*token == *DirectorySeparator)
                    (void) CopyMagickString(path,token,MaxTextExtent);
                  else
                    (void) ConcatenateMagickString(path,token,MaxTextExtent);
                  sans_exception=AcquireExceptionInfo();
                  xml=FileToString(path,~0UL,sans_exception);
                  sans_exception=DestroyExceptionInfo(sans_exception);
                  if (xml != (char *) NULL)
                    {
                      status=LoadTypeList(xml,path,depth+1,exception);
                      xml=(char *) RelinquishMagickMemory(xml);
                    }
                }
            }
        }
        continue;
      }
    if (LocaleCompare(keyword,"<type") == 0)
      {
        /*
          Type element.
        */
        type_info=(TypeInfo *) AcquireMagickMemory(sizeof(*type_info));
        if (type_info == (TypeInfo *) NULL)
          ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
        (void) ResetMagickMemory(type_info,0,sizeof(*type_info));
        type_info->path=ConstantString(filename);
        type_info->signature=MagickSignature;
        continue;
      }
    if (type_info == (TypeInfo *) NULL)
      continue;
    if (LocaleCompare(keyword,"/>") == 0)
      {
        status=AddValueToSplayTree(type_list,type_info->name,type_info);
        if (status == MagickFalse)
          (void) ThrowMagickException(exception,GetMagickModule(),
            ResourceLimitError,"MemoryAllocationFailed","`%s'",type_info->name);
        type_info=(TypeInfo *) NULL;
      }
    GetMagickToken(q,(const char **) NULL,token);
    if (*token != '=')
      continue;
    GetMagickToken(q,&q,token);
    GetMagickToken(q,&q,token);
    switch (*keyword)
    {
      case 'E':
      case 'e':
      {
        if (LocaleCompare((char *) keyword,"encoding") == 0)
          {
            type_info->encoding=ConstantString(token);
            break;
          }
        break;
      }
      case 'F':
      case 'f':
      {
        if (LocaleCompare((char *) keyword,"face") == 0)
          {
            type_info->face=StringToUnsignedLong(token);
            break;
          }
        if (LocaleCompare((char *) keyword,"family") == 0)
          {
            type_info->family=ConstantString(token);
            break;
          }
        if (LocaleCompare((char *) keyword,"format") == 0)
          {
            type_info->format=ConstantString(token);
            break;
          }
        if (LocaleCompare((char *) keyword,"foundry") == 0)
          {
            type_info->foundry=ConstantString(token);
            break;
          }
        if (LocaleCompare((char *) keyword,"fullname") == 0)
          {
            type_info->description=ConstantString(token);
            break;
          }
        break;
      }
      case 'G':
      case 'g':
      {
        if (LocaleCompare((char *) keyword,"glyphs") == 0)
          {
            char
              *path;

            path=ConstantString(token);
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
            if (strchr(path,'@') != (char *) NULL)
              SubstituteString(&path,"@ghostscript_font_path@",font_path);
#endif
            if (IsPathAccessible(path) == MagickFalse)
              {
                /*
                  Relative path.
                */
                path=DestroyString(path);
                GetPathComponent(filename,HeadPath,font_path);
                (void) ConcatenateMagickString(font_path,DirectorySeparator,
                  MaxTextExtent);
                (void) ConcatenateMagickString(font_path,token,MaxTextExtent);
                path=ConstantString(font_path);
                if (IsPathAccessible(path) == MagickFalse)
                  {
                    path=DestroyString(path);
                    path=ConstantString(token);
                  }
              }
            type_info->glyphs=path;
            break;
          }
        break;
      }
      case 'M':
      case 'm':
      {
        if (LocaleCompare((char *) keyword,"metrics") == 0)
          {
            char
              *path;

            path=ConstantString(token);
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
            if (strchr(path,'@') != (char *) NULL)
              SubstituteString(&path,"@ghostscript_font_path@",font_path);
#endif
            if (IsPathAccessible(path) == MagickFalse)
              {
                /*
                  Relative path.
                */
                path=DestroyString(path);
                GetPathComponent(filename,HeadPath,font_path);
                (void) ConcatenateMagickString(font_path,DirectorySeparator,
                  MaxTextExtent);
                (void) ConcatenateMagickString(font_path,token,MaxTextExtent);
                path=ConstantString(font_path);
              }
            type_info->metrics=path;
            break;
          }
        break;
      }
      case 'N':
      case 'n':
      {
        if (LocaleCompare((char *) keyword,"name") == 0)
          {
            type_info->name=ConstantString(token);
            break;
          }
        break;
      }
      case 'S':
      case 's':
      {
        if (LocaleCompare((char *) keyword,"stealth") == 0)
          {
            type_info->stealth=IsStringTrue(token);
            break;
          }
        if (LocaleCompare((char *) keyword,"stretch") == 0)
          {
            type_info->stretch=(StretchType) ParseCommandOption(
              MagickStretchOptions,MagickFalse,token);
            break;
          }
        if (LocaleCompare((char *) keyword,"style") == 0)
          {
            type_info->style=(StyleType) ParseCommandOption(MagickStyleOptions,
              MagickFalse,token);
            break;
          }
        break;
      }
      case 'W':
      case 'w':
      {
        if (LocaleCompare((char *) keyword,"weight") == 0)
          {
            type_info->weight=StringToUnsignedLong(token);
            if (LocaleCompare(token,"bold") == 0)
              type_info->weight=700;
            if (LocaleCompare(token,"normal") == 0)
              type_info->weight=400;
            break;
          }
        break;
      }
      default:
        break;
    }
  }
  token=(char *) RelinquishMagickMemory(token);
  return(status);
}
Exemplo n.º 4
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   W r i t e H I S T O G R A M I m a g e                                     %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  WriteHISTOGRAMImage() writes an image to a file in Histogram format.
%  The image shows a histogram of the color (or gray) values in the image.  The
%  image consists of three overlaid histograms:  a red one for the red channel,
%  a green one for the green channel, and a blue one for the blue channel.  The
%  image comment contains a list of unique pixel values and the number of times
%  each occurs in the image.
%
%  This method is strongly based on a similar one written by
%  [email protected] which in turn is based on ppmhistmap of netpbm.
%
%  The format of the WriteHISTOGRAMImage method is:
%
%      MagickBooleanType WriteHISTOGRAMImage(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 MagickBooleanType WriteHISTOGRAMImage(const ImageInfo *image_info,
  Image *image,ExceptionInfo *exception)
{
#define HistogramDensity  "256x200"

  char
    filename[MagickPathExtent];

  const char
    *option;

  Image
    *histogram_image;

  ImageInfo
    *write_info;

  MagickBooleanType
    status;

  PixelInfo
    *histogram;

  double
    maximum,
    scale;

  RectangleInfo
    geometry;

  register const Quantum
    *p;

  register Quantum
    *q,
    *r;

  register ssize_t
    x;

  size_t
    length;

  ssize_t
    y;

  /*
    Allocate histogram image.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickCoreSignature);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
      image_info->filename);
  SetGeometry(image,&geometry);
  if (image_info->density == (char *) NULL)
    (void) ParseAbsoluteGeometry(HistogramDensity,&geometry);
  else
    (void) ParseAbsoluteGeometry(image_info->density,&geometry);
  histogram_image=CloneImage(image,geometry.width,geometry.height,MagickTrue,
    exception);
  if (histogram_image == (Image *) NULL)
    ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
  (void) SetImageStorageClass(histogram_image,DirectClass,exception);
  /*
    Allocate histogram count arrays.
  */
  length=MagickMax((size_t) ScaleQuantumToChar(QuantumRange)+1UL,
    histogram_image->columns);
  histogram=(PixelInfo *) AcquireQuantumMemory(length,sizeof(*histogram));
  if (histogram == (PixelInfo *) NULL)
    {
      histogram_image=DestroyImage(histogram_image);
      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
    }
  /*
    Initialize histogram count arrays.
  */
  (void) ResetMagickMemory(histogram,0,length*sizeof(*histogram));
  for (y=0; y < (ssize_t) image->rows; y++)
  {
    p=GetVirtualPixels(image,0,y,image->columns,1,exception);
    if (p == (const Quantum *) NULL)
      break;
    for (x=0; x < (ssize_t) image->columns; x++)
    {
      if ((GetPixelRedTraits(image) & UpdatePixelTrait) != 0)
        histogram[ScaleQuantumToChar(GetPixelRed(image,p))].red++;
      if ((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0)
        histogram[ScaleQuantumToChar(GetPixelGreen(image,p))].green++;
      if ((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0)
        histogram[ScaleQuantumToChar(GetPixelBlue(image,p))].blue++;
      p+=GetPixelChannels(image);
    }
  }
  maximum=histogram[0].red;
  for (x=0; x < (ssize_t) histogram_image->columns; x++)
  {
    if (((GetPixelRedTraits(image) & UpdatePixelTrait) != 0) &&
        (maximum < histogram[x].red))
      maximum=histogram[x].red;
    if (((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0) &&
        (maximum < histogram[x].green))
      maximum=histogram[x].green;
    if (((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0) &&
        (maximum < histogram[x].blue))
      maximum=histogram[x].blue;
  }
  scale=0.0;
  if (fabs(maximum) >= MagickEpsilon)
    scale=(double) histogram_image->rows/maximum;
  /*
    Initialize histogram image.
  */
  (void) QueryColorCompliance("#000000",AllCompliance,
    &histogram_image->background_color,exception);
  (void) SetImageBackgroundColor(histogram_image,exception);
  for (x=0; x < (ssize_t) histogram_image->columns; x++)
  {
    q=GetAuthenticPixels(histogram_image,x,0,1,histogram_image->rows,exception);
    if (q == (Quantum *) NULL)
      break;
    if ((GetPixelRedTraits(image) & UpdatePixelTrait) != 0)
      {
        y=(ssize_t) ceil(histogram_image->rows-scale*histogram[x].red-0.5);
        r=q+y*GetPixelChannels(histogram_image);
        for ( ; y < (ssize_t) histogram_image->rows; y++)
        {
          SetPixelRed(histogram_image,QuantumRange,r);
          r+=GetPixelChannels(histogram_image);
        }
      }
    if ((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0)
      {
        y=(ssize_t) ceil(histogram_image->rows-scale*histogram[x].green-0.5);
        r=q+y*GetPixelChannels(histogram_image);
        for ( ; y < (ssize_t) histogram_image->rows; y++)
        {
          SetPixelGreen(histogram_image,QuantumRange,r);
          r+=GetPixelChannels(histogram_image);
        }
      }
    if ((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0)
      {
        y=(ssize_t) ceil(histogram_image->rows-scale*histogram[x].blue-0.5);
        r=q+y*GetPixelChannels(histogram_image);
        for ( ; y < (ssize_t) histogram_image->rows; y++)
        {
          SetPixelBlue(histogram_image,QuantumRange,r);
          r+=GetPixelChannels(histogram_image);
        }
      }
    if (SyncAuthenticPixels(histogram_image,exception) == MagickFalse)
      break;
    status=SetImageProgress(image,SaveImageTag,y,histogram_image->rows);
    if (status == MagickFalse)
      break;
  }
  histogram=(PixelInfo *) RelinquishMagickMemory(histogram);
  option=GetImageOption(image_info,"histogram:unique-colors");
  if ((option == (const char *) NULL) || (IsStringTrue(option) != MagickFalse))
    {
      FILE
        *file;

      int
        unique_file;

      /*
        Add a unique colors as an image comment.
      */
      file=(FILE *) NULL;
      unique_file=AcquireUniqueFileResource(filename);
      if (unique_file != -1)
        file=fdopen(unique_file,"wb");
      if ((unique_file != -1) && (file != (FILE *) NULL))
        {
          char
            *property;

          (void) GetNumberColors(image,file,exception);
          (void) fclose(file);
          property=FileToString(filename,~0UL,exception);
          if (property != (char *) NULL)
            {
              (void) SetImageProperty(histogram_image,"comment",property,
                exception);
              property=DestroyString(property);
            }
        }
      (void) RelinquishUniqueFileResource(filename);
    }
  /*
    Write Histogram image.
  */
  (void) CopyMagickString(histogram_image->filename,image_info->filename,
    MagickPathExtent);
  write_info=CloneImageInfo(image_info);
  *write_info->magick='\0';
  (void) SetImageInfo(write_info,1,exception);
  if ((*write_info->magick == '\0') ||
      (LocaleCompare(write_info->magick,"HISTOGRAM") == 0))
    (void) FormatLocaleString(histogram_image->filename,MagickPathExtent,
      "miff:%s",write_info->filename);
  histogram_image->blob=DetachBlob(histogram_image->blob);
  histogram_image->blob=CloneBlobInfo(image->blob);
  status=WriteImage(write_info,histogram_image,exception);
  image->blob=DetachBlob(image->blob);
  image->blob=CloneBlobInfo(histogram_image->blob);
  histogram_image=DestroyImage(histogram_image);
  write_info=DestroyImageInfo(write_info);
  return(status);
}
Exemplo n.º 5
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   L o a d M i m e C a c h e                                                 %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  LoadMimeCache() loads the mime configurations which provides a mapping
%  between mime attributes and a mime name.
%
%  The format of the LoadMimeCache method is:
%
%      MagickBooleanType LoadMimeCache(LinkedListInfo *cache,const char *xml,
%        const char *filename,const size_t depth,ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o xml:  The mime list in XML format.
%
%    o filename:  The mime list filename.
%
%    o depth: depth of <include /> statements.
%
%    o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType LoadMimeCache(LinkedListInfo *cache,const char *xml,
  const char *filename,const size_t depth,ExceptionInfo *exception)
{
  const char
    *attribute;

  MimeInfo
    *mime_info = (MimeInfo *) NULL;

  MagickStatusType
    status;

  XMLTreeInfo
    *mime,
    *mime_map,
    *include;

  /*
    Load the mime map file.
  */
  (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
    "Loading mime map \"%s\" ...",filename);
  if (xml == (const char *) NULL)
    return(MagickFalse);
  mime_map=NewXMLTree(xml,exception);
  if (mime_map == (XMLTreeInfo *) NULL)
    return(MagickFalse);
  status=MagickTrue;
  include=GetXMLTreeChild(mime_map,"include");
  while (include != (XMLTreeInfo *) NULL)
  {
    /*
      Process include element.
    */
    attribute=GetXMLTreeAttribute(include,"file");
    if (attribute != (const char *) NULL)
      {
        if (depth > 200)
          (void) ThrowMagickException(exception,GetMagickModule(),
            ConfigureError,"IncludeElementNestedTooDeeply","`%s'",filename);
        else
          {
            char
              path[MagickPathExtent],
              *file_xml;

            GetPathComponent(filename,HeadPath,path);
            if (*path != '\0')
              (void) ConcatenateMagickString(path,DirectorySeparator,
                MagickPathExtent);
            if (*attribute == *DirectorySeparator)
              (void) CopyMagickString(path,attribute,MagickPathExtent);
            else
              (void) ConcatenateMagickString(path,attribute,MagickPathExtent);
            file_xml=FileToXML(path,~0UL);
            if (file_xml != (char *) NULL)
              {
                status&=LoadMimeCache(cache,file_xml,path,depth+1,exception);
                file_xml=DestroyString(file_xml);
              }
          }
      }
    include=GetNextXMLTreeTag(include);
  }
  mime=GetXMLTreeChild(mime_map,"mime");
  while (mime != (XMLTreeInfo *) NULL)
  {
    /*
      Process mime element.
    */
    mime_info=(MimeInfo *) AcquireCriticalMemory(sizeof(*mime_info));
    (void) ResetMagickMemory(mime_info,0,sizeof(*mime_info));
    mime_info->path=ConstantString(filename);
    mime_info->signature=MagickCoreSignature;
    attribute=GetXMLTreeAttribute(mime,"data-type");
    if (attribute != (const char *) NULL)
      mime_info->data_type=(DataType) ParseCommandOption(MagickDataTypeOptions,
        MagickTrue,attribute);
    attribute=GetXMLTreeAttribute(mime,"description");
    if (attribute != (const char *) NULL)
      mime_info->description=ConstantString(attribute);
    attribute=GetXMLTreeAttribute(mime,"endian");
    if (attribute != (const char *) NULL)
      mime_info->endian=(EndianType) ParseCommandOption(MagickEndianOptions,
        MagickTrue,attribute);
    attribute=GetXMLTreeAttribute(mime,"magic");
    if (attribute != (const char *) NULL)
      {
        char
          *token;

        const char
          *p;

        register unsigned char
          *q;

        token=AcquireString(attribute);
        (void) SubstituteString((char **) &token,"&lt;","<");
        (void) SubstituteString((char **) &token,"&amp;","&");
        (void) SubstituteString((char **) &token,"&quot;","\"");
        mime_info->magic=(unsigned char *) AcquireString(token);
        q=mime_info->magic;
        for (p=token; *p != '\0'; )
        {
          if (*p == '\\')
            {
              p++;
              if (isdigit((int) ((unsigned char) *p)) != 0)
                {
                  char
                    *end;

                  *q++=(unsigned char) strtol(p,&end,8);
                  p+=(end-p);
                  mime_info->length++;
                  continue;
                }
              switch (*p)
              {
                case 'b': *q='\b'; break;
                case 'f': *q='\f'; break;
                case 'n': *q='\n'; break;
                case 'r': *q='\r'; break;
                case 't': *q='\t'; break;
                case 'v': *q='\v'; break;
                case 'a': *q='a'; break;
                case '?': *q='\?'; break;
                default: *q=(unsigned char) (*p); break;
              }
              p++;
              q++;
              mime_info->length++;
              continue;
            }
          *q++=(unsigned char) (*p++);
          mime_info->length++;
        }
        token=DestroyString(token);
        if (mime_info->data_type != StringData)
          mime_info->value=(ssize_t) strtoul((char *) mime_info->magic,
            (char **) NULL,0);
      }
    attribute=GetXMLTreeAttribute(mime,"mask");
    if (attribute != (const char *) NULL)
      mime_info->mask=(ssize_t) strtoul(attribute,(char **) NULL,0);
    attribute=GetXMLTreeAttribute(mime,"offset");
    if (attribute != (const char *) NULL)
      {
        char
          *c;

        mime_info->offset=(MagickOffsetType) strtol(attribute,&c,0);
        if (*c == ':')
          mime_info->extent=(size_t) strtol(c+1,(char **) NULL,0);
      }
    attribute=GetXMLTreeAttribute(mime,"pattern");
    if (attribute != (const char *) NULL)
      mime_info->pattern=ConstantString(attribute);
    attribute=GetXMLTreeAttribute(mime,"priority");
    if (attribute != (const char *) NULL)
      mime_info->priority=(ssize_t) strtol(attribute,(char **) NULL,0);
    attribute=GetXMLTreeAttribute(mime,"stealth");
    if (attribute != (const char *) NULL)
      mime_info->stealth=IsStringTrue(attribute);
    attribute=GetXMLTreeAttribute(mime,"type");
    if (attribute != (const char *) NULL)
      mime_info->type=ConstantString(attribute);
    status=AppendValueToLinkedList(cache,mime_info);
    if (status == MagickFalse)
      (void) ThrowMagickException(exception,GetMagickModule(),
        ResourceLimitError,"MemoryAllocationFailed","`%s'",filename);
    mime=GetNextXMLTreeTag(mime);
  }
  mime_map=DestroyXMLTree(mime_map);
  return(status != 0 ? MagickTrue : MagickFalse);
}
Exemplo n.º 6
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   W r i t e I m a g e                                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  WriteImage() writes an image or an image sequence to a file or file handle.
%  If writing to a file is on disk, the name is defined by the filename member
%  of the image structure.  WriteImage() returns MagickFalse is there is a
%  memory shortage or if the image cannot be written.  Check the exception
%  member of image to determine the cause for any failure.
%
%  The format of the WriteImage method is:
%
%      MagickBooleanType WriteImage(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.
%
*/
MagickExport MagickBooleanType WriteImage(const ImageInfo *image_info,
  Image *image,ExceptionInfo *exception)
{
  char
    filename[MagickPathExtent];

  const char
    *option;

  const DelegateInfo
    *delegate_info;

  const MagickInfo
    *magick_info;

  ExceptionInfo
    *sans_exception;

  ImageInfo
    *write_info;

  MagickBooleanType
    status,
    temporary;

  PolicyDomain
    domain;

  PolicyRights
    rights;

  /*
    Determine image type from filename prefix or suffix (e.g. image.jpg).
  */
  assert(image_info != (ImageInfo *) NULL);
  assert(image_info->signature == MagickCoreSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
      image_info->filename);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  assert(exception != (ExceptionInfo *) NULL);
  sans_exception=AcquireExceptionInfo();
  write_info=CloneImageInfo(image_info);
  (void) CopyMagickString(write_info->filename,image->filename,MagickPathExtent);
  (void) SetImageInfo(write_info,1,sans_exception);
  if (*write_info->magick == '\0')
    (void) CopyMagickString(write_info->magick,image->magick,MagickPathExtent);
  (void) CopyMagickString(filename,image->filename,MagickPathExtent);
  (void) CopyMagickString(image->filename,write_info->filename,MagickPathExtent);
  domain=CoderPolicyDomain;
  rights=WritePolicyRights;
  if (IsRightsAuthorized(domain,rights,write_info->magick) == MagickFalse)
    {
      sans_exception=DestroyExceptionInfo(sans_exception);
      write_info=DestroyImageInfo(write_info);
      errno=EPERM;
      ThrowBinaryException(PolicyError,"NotAuthorized",filename);
    }
  /*
    Call appropriate image reader based on image type.
  */
  magick_info=GetMagickInfo(write_info->magick,sans_exception);
  sans_exception=DestroyExceptionInfo(sans_exception);
  if (magick_info != (const MagickInfo *) NULL)
    {
      if (GetMagickEndianSupport(magick_info) == MagickFalse)
        image->endian=UndefinedEndian;
      else
        if ((image_info->endian == UndefinedEndian) &&
            (GetMagickRawSupport(magick_info) != MagickFalse))
          {
            unsigned long
              lsb_first;

            lsb_first=1;
            image->endian=(*(char *) &lsb_first) == 1 ? LSBEndian : MSBEndian;
         }
    }
  (void) SyncImageProfiles(image);
  DisassociateImageStream(image);
  option=GetImageOption(image_info,"delegate:bimodal");
  if ((IsStringTrue(option) != MagickFalse) &&
      (write_info->page == (char *) NULL) &&
      (GetPreviousImageInList(image) == (Image *) NULL) &&
      (GetNextImageInList(image) == (Image *) NULL) &&
      (IsTaintImage(image) == MagickFalse) )
    {
      delegate_info=GetDelegateInfo(image->magick,write_info->magick,exception);
      if ((delegate_info != (const DelegateInfo *) NULL) &&
          (GetDelegateMode(delegate_info) == 0) &&
          (IsPathAccessible(image->magick_filename) != MagickFalse))
        {
          /*
            Process image with bi-modal delegate.
          */
          (void) CopyMagickString(image->filename,image->magick_filename,
            MagickPathExtent);
          status=InvokeDelegate(write_info,image,image->magick,
            write_info->magick,exception);
          write_info=DestroyImageInfo(write_info);
          (void) CopyMagickString(image->filename,filename,MagickPathExtent);
          return(status);
        }
    }
  status=MagickFalse;
  temporary=MagickFalse;
  if ((magick_info != (const MagickInfo *) NULL) &&
      (GetMagickSeekableStream(magick_info) != MagickFalse))
    {
      char
        image_filename[MagickPathExtent];

      (void) CopyMagickString(image_filename,image->filename,MagickPathExtent);
      status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
      (void) CopyMagickString(image->filename, image_filename,MagickPathExtent);
      if (status != MagickFalse)
        {
          if (IsBlobSeekable(image) == MagickFalse)
            {
              /*
                A seekable stream is required by the encoder.
              */
              write_info->adjoin=MagickTrue;
              (void) CopyMagickString(write_info->filename,image->filename,
                MagickPathExtent);
              (void) AcquireUniqueFilename(image->filename);
              temporary=MagickTrue;
            }
          (void) CloseBlob(image);
        }
    }
  if ((magick_info != (const MagickInfo *) NULL) &&
      (GetImageEncoder(magick_info) != (EncodeImageHandler *) NULL))
    {
      /*
        Call appropriate image writer based on image type.
      */
      if (GetMagickEncoderThreadSupport(magick_info) == MagickFalse)
        LockSemaphoreInfo(magick_info->semaphore);
      status=GetImageEncoder(magick_info)(write_info,image,exception);
      if (GetMagickEncoderThreadSupport(magick_info) == MagickFalse)
        UnlockSemaphoreInfo(magick_info->semaphore);
    }
  else
    {
      delegate_info=GetDelegateInfo((char *) NULL,write_info->magick,exception);
      if (delegate_info != (DelegateInfo *) NULL)
        {
          /*
            Process the image with delegate.
          */
          *write_info->filename='\0';
          if (GetDelegateThreadSupport(delegate_info) == MagickFalse)
            LockSemaphoreInfo(delegate_info->semaphore);
          status=InvokeDelegate(write_info,image,(char *) NULL,
            write_info->magick,exception);
          if (GetDelegateThreadSupport(delegate_info) == MagickFalse)
            UnlockSemaphoreInfo(delegate_info->semaphore);
          (void) CopyMagickString(image->filename,filename,MagickPathExtent);
        }
      else
        {
          sans_exception=AcquireExceptionInfo();
          magick_info=GetMagickInfo(write_info->magick,sans_exception);
          sans_exception=DestroyExceptionInfo(sans_exception);
          if ((write_info->affirm == MagickFalse) &&
              (magick_info == (const MagickInfo *) NULL))
            {
              (void) CopyMagickString(write_info->magick,image->magick,
                MagickPathExtent);
              magick_info=GetMagickInfo(write_info->magick,exception);
            }
          if ((magick_info == (const MagickInfo *) NULL) ||
              (GetImageEncoder(magick_info) == (EncodeImageHandler *) NULL))
            {
              char
                extension[MagickPathExtent];

              GetPathComponent(image->filename,ExtensionPath,extension);
              if (*extension != '\0')
                magick_info=GetMagickInfo(extension,exception);
              else
                magick_info=GetMagickInfo(image->magick,exception);
              (void) CopyMagickString(image->filename,filename,MagickPathExtent);
            }
          if ((magick_info == (const MagickInfo *) NULL) ||
              (GetImageEncoder(magick_info) == (EncodeImageHandler *) NULL))
            {
              magick_info=GetMagickInfo(image->magick,exception);
              if ((magick_info == (const MagickInfo *) NULL) ||
                  (GetImageEncoder(magick_info) == (EncodeImageHandler *) NULL))
                (void) ThrowMagickException(exception,GetMagickModule(),
                  MissingDelegateError,"NoEncodeDelegateForThisImageFormat",
                  "`%s'",write_info->magick);
              else
                (void) ThrowMagickException(exception,GetMagickModule(),
                  MissingDelegateWarning,"NoEncodeDelegateForThisImageFormat",
                  "`%s'",write_info->magick);
            }
          if ((magick_info != (const MagickInfo *) NULL) &&
              (GetImageEncoder(magick_info) != (EncodeImageHandler *) NULL))
            {
              /*
                Call appropriate image writer based on image type.
              */
              if (GetMagickEncoderThreadSupport(magick_info) == MagickFalse)
                LockSemaphoreInfo(magick_info->semaphore);
              status=GetImageEncoder(magick_info)(write_info,image,exception);
              if (GetMagickEncoderThreadSupport(magick_info) == MagickFalse)
                UnlockSemaphoreInfo(magick_info->semaphore);
            }
        }
    }
  if (temporary != MagickFalse)
    {
      /*
        Copy temporary image file to permanent.
      */
      status=OpenBlob(write_info,image,ReadBinaryBlobMode,exception);
      if (status != MagickFalse)
        {
          (void) RelinquishUniqueFileResource(write_info->filename);
          status=ImageToFile(image,write_info->filename,exception);
        }
      (void) CloseBlob(image);
      (void) RelinquishUniqueFileResource(image->filename);
      (void) CopyMagickString(image->filename,write_info->filename,
        MagickPathExtent);
    }
  if ((LocaleCompare(write_info->magick,"info") != 0) &&
      (write_info->verbose != MagickFalse))
    (void) IdentifyImage(image,stdout,MagickFalse,exception);
  write_info=DestroyImageInfo(write_info);
  return(status);
}
Exemplo n.º 7
0
WandExport MagickBooleanType ImportImageCommand(ImageInfo *image_info,
  int argc,char **argv,char **wand_unused(metadata),ExceptionInfo *exception)
{
#if defined(MAGICKCORE_X11_DELEGATE)
#define DestroyImport() \
{ \
  XDestroyResourceInfo(&resource_info); \
  if (display != (Display *) NULL) \
    { \
      XCloseDisplay(display); \
      display=(Display *) NULL; \
    } \
  DestroyImageStack(); \
  if (target_window != (char *) NULL) \
    target_window=DestroyString(target_window); \
  for (i=0; i < (ssize_t) argc; i++) \
    argv[i]=DestroyString(argv[i]); \
  argv=(char **) RelinquishMagickMemory(argv); \
}
#define ThrowImportException(asperity,tag,option) \
{ \
  (void) ThrowMagickException(exception,GetMagickModule(),asperity,tag,"`%s'", \
     option); \
  DestroyImport(); \
  return(MagickFalse); \
}
#define ThrowImportInvalidArgumentException(option,argument) \
{ \
  (void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
    "InvalidArgument","'%s': %s",option,argument); \
  DestroyImport(); \
  return(MagickFalse); \
}

  char
    *filename,
    *option,
    *resource_value,
    *server_name,
    *target_window;

  Display
    *display;

  Image
    *image;

  ImageStack
    image_stack[MaxImageStackDepth+1];

  MagickBooleanType
    fire,
    pend,
    respect_parenthesis;

  MagickStatusType
    status;

  QuantizeInfo
    *quantize_info;

  register ssize_t
    i;

  ssize_t
    j,
    k,
    snapshots;

  XImportInfo
    ximage_info;

  XResourceInfo
    resource_info;

  XrmDatabase
    resource_database;

  /*
    Set defaults.
  */
  assert(image_info != (ImageInfo *) NULL);
  assert(image_info->signature == MagickCoreSignature);
  if (image_info->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
  assert(exception != (ExceptionInfo *) NULL);
  if (argc == 2)
    {
      option=argv[1];
      if ((LocaleCompare("version",option+1) == 0) ||
          (LocaleCompare("-version",option+1) == 0))
        {
          ListMagickVersion(stdout);
          return(MagickFalse);
        }
    }
  display=(Display *) NULL;
  j=1;
  k=0;
  NewImageStack();
  option=(char *) NULL;
  pend=MagickFalse;
  resource_database=(XrmDatabase) NULL;
  respect_parenthesis=MagickFalse;
  (void) ResetMagickMemory(&resource_info,0,sizeof(resource_info));
  server_name=(char *) NULL;
  status=MagickTrue;
  SetNotifyHandlers;
  target_window=(char *) NULL;
  /*
    Check for server name specified on the command line.
  */
  ReadCommandlLine(argc,&argv);
  status=ExpandFilenames(&argc,&argv);
  if (status == MagickFalse)
    ThrowImportException(ResourceLimitError,"MemoryAllocationFailed",
      GetExceptionMessage(errno));
  for (i=1; i < (ssize_t) argc; i++)
  {
    /*
      Check command line for server name.
    */
    option=argv[i];
    if (LocaleCompare("display",option+1) == 0)
      {
        /*
          User specified server name.
        */
        i++;
        if (i == (ssize_t) argc)
          ThrowImportException(OptionError,"MissingArgument",option);
        server_name=argv[i];
      }
    if ((LocaleCompare("help",option+1) == 0) ||
        (LocaleCompare("-help",option+1) == 0))
      return(ImportUsage());
  }
  /*
    Get user defaults from X resource database.
  */
  display=XOpenDisplay(server_name);
  if (display == (Display *) NULL)
    ThrowImportException(XServerError,"UnableToOpenXServer",
      XDisplayName(server_name));
  (void) XSetErrorHandler(XError);
  resource_database=XGetResourceDatabase(display,GetClientName());
  XGetImportInfo(&ximage_info);
  XGetResourceInfo(image_info,resource_database,GetClientName(),
    &resource_info);
  quantize_info=resource_info.quantize_info;
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "border","False");
  ximage_info.borders=IsStringTrue(resource_value);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "delay","0");
  resource_info.delay=(unsigned int) StringToUnsignedLong(resource_value);
  image_info->density=XGetResourceInstance(resource_database,GetClientName(),
    "density",(char *) NULL);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "descend","False");
  ximage_info.descend=IsStringTrue(resource_value);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "frame","False");
  ximage_info.frame=IsStringTrue(resource_value);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "interlace","none");
  image_info->interlace=UndefinedInterlace;
  if (LocaleCompare("None",resource_value) == 0)
    image_info->interlace=NoInterlace;
  if (LocaleCompare("Line",resource_value) == 0)
    image_info->interlace=LineInterlace;
  if (LocaleCompare("Plane",resource_value) == 0)
    image_info->interlace=PlaneInterlace;
  if (LocaleCompare("Partition",resource_value) == 0)
    image_info->interlace=PartitionInterlace;
  if (image_info->interlace == UndefinedInterlace)
    ThrowImportException(OptionError,"Unrecognized interlace type",
      resource_value);
  image_info->page=XGetResourceInstance(resource_database,GetClientName(),
    "pageGeometry",(char *) NULL);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "pause","0");
  resource_info.pause=(unsigned int) StringToUnsignedLong(resource_value);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "quality","85");
  image_info->quality=StringToUnsignedLong(resource_value);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "screen","False");
  ximage_info.screen=IsStringTrue(resource_value);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "silent","False");
  ximage_info.silent=IsStringTrue(resource_value);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "verbose","False");
  image_info->verbose=IsStringTrue(resource_value);
  resource_value=XGetResourceInstance(resource_database,GetClientName(),
    "dither","True");
  quantize_info->dither_method=IsStringTrue(resource_value) != MagickFalse ?
    RiemersmaDitherMethod : NoDitherMethod;
  snapshots=1;
  status=MagickTrue;
  filename=(char *) NULL;
  /*
    Check command syntax.
  */
  for (i=1; i < (ssize_t) argc; i++)
  {
    option=argv[i];
    if (LocaleCompare(option,"(") == 0)
      {
        FireImageStack(MagickFalse,MagickTrue,pend);
        if (k == MaxImageStackDepth)
          ThrowImportException(OptionError,"ParenthesisNestedTooDeeply",
            option);
        PushImageStack();
        continue;
      }
    if (LocaleCompare(option,")") == 0)
      {
        FireImageStack(MagickFalse,MagickTrue,MagickTrue);
        if (k == 0)
          ThrowImportException(OptionError,"UnableToParseExpression",option);
        PopImageStack();
        continue;
      }
    if (IsCommandOption(option) == MagickFalse)
      {
        Image
          *images;

        size_t
          scene;

        /*
          Read image from X server.
        */
        FireImageStack(MagickFalse,MagickFalse,pend);
        filename=argv[i];
        if (target_window != (char *) NULL)
          (void) CopyMagickString(image_info->filename,target_window,
            MagickPathExtent);
        for (scene=0; scene < (size_t) MagickMax(snapshots,1); scene++)
        {
          MagickDelay(1000*resource_info.pause);
          images=XImportImage(image_info,&ximage_info,exception);
          status&=(images != (Image *) NULL) &&
            (exception->severity < ErrorException);
          if (images == (Image *) NULL)
            continue;
          (void) CopyMagickString(images->filename,filename,MagickPathExtent);
          (void) CopyMagickString(images->magick,"PS",MagickPathExtent);
          images->scene=scene;
          AppendImageStack(images);
        }
        continue;
      }
    pend=image != (Image *) NULL ? MagickTrue : MagickFalse;
    switch(*(option+1))
    {
      case 'a':
      {
        if (LocaleCompare("adjoin",option+1) == 0)
          break;
        if (LocaleCompare("annotate",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            i++;
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'b':
      {
        if (LocaleCompare("border",option+1) == 0)
          {
            (void) CopyMagickString(argv[i]+1,"sans",MagickPathExtent);
            ximage_info.borders=(*option == '-') ? MagickTrue : MagickFalse;
            break;
          }
        if (LocaleCompare("bordercolor",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'c':
      {
        if (LocaleCompare("cache",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("channel",option+1) == 0)
          {
            ssize_t
              channel;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            channel=ParseChannelOption(argv[i]);
            if (channel < 0)
              ThrowImportException(OptionError,"UnrecognizedChannelType",
                argv[i]);
            break;
          }
        if (LocaleCompare("colors",option+1) == 0)
          {
            quantize_info->number_colors=0;
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            quantize_info->number_colors=StringToUnsignedLong(argv[i]);
            break;
          }
        if (LocaleCompare("colorspace",option+1) == 0)
          {
            ssize_t
              colorspace;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            colorspace=ParseCommandOption(MagickColorspaceOptions,MagickFalse,
              argv[i]);
            if (colorspace < 0)
              ThrowImportException(OptionError,"UnrecognizedColorspace",
                argv[i]);
            break;
          }
        if (LocaleCompare("comment",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            status=SetImageOption(image_info,"comment",argv[i]);
            if (status == MagickFalse)
              ThrowImportException(OptionError,"UnrecognizedOption",argv[i]);
            break;
          }
        if (LocaleCompare("compress",option+1) == 0)
          {
            ssize_t
              compress;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            compress=ParseCommandOption(MagickCompressOptions,MagickFalse,
              argv[i]);
            if (compress < 0)
              ThrowImportException(OptionError,"UnrecognizedImageCompression",
                argv[i]);
            break;
          }
        if (LocaleCompare("concurrent",option+1) == 0)
          break;
        if (LocaleCompare("crop",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'd':
      {
        if (LocaleCompare("debug",option+1) == 0)
          {
            ssize_t
              event;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            event=ParseCommandOption(MagickLogEventOptions,MagickFalse,argv[i]);
            if (event < 0)
              ThrowImportException(OptionError,"UnrecognizedEventType",argv[i]);
            (void) SetLogEventMask(argv[i]);
            break;
          }
        if (LocaleCompare("define",option+1) == 0)
          {
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (*option == '+')
              {
                const char
                  *define;

                define=GetImageOption(image_info,argv[i]);
                if (define == (char *) NULL)
                  ThrowImportException(OptionError,"NoSuchOption",argv[i]);
                break;
              }
            break;
          }
        if (LocaleCompare("delay",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            status=SetImageOption(image_info,"delay",argv[i]);
            if (status == MagickFalse)
              ThrowImportException(OptionError,"UnrecognizedOption",argv[i]);
            break;
          }
        if (LocaleCompare("density",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("depth",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("descend",option+1) == 0)
          {
            ximage_info.descend=(*option == '-') ? MagickTrue : MagickFalse;
            break;
          }
        if (LocaleCompare("display",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        if (LocaleCompare("dispose",option+1) == 0)
          {
            ssize_t
              dispose;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            dispose=ParseCommandOption(MagickDisposeOptions,MagickFalse,argv[i]);
            if (dispose < 0)
              ThrowImportException(OptionError,"UnrecognizedDisposeMethod",
                argv[i]);
            break;
          }
        if (LocaleCompare("dither",option+1) == 0)
          {
            ssize_t
              method;

            quantize_info->dither_method=NoDitherMethod;
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            method=ParseCommandOption(MagickDitherOptions,MagickFalse,argv[i]);
            if (method < 0)
              ThrowImportException(OptionError,"UnrecognizedDitherMethod",
                argv[i]);
            quantize_info->dither_method=(DitherMethod) method;
            break;
          }
        if (LocaleCompare("duration",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'e':
      {
        if (LocaleCompare("encipher",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        if (LocaleCompare("encoding",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        if (LocaleCompare("endian",option+1) == 0)
          {
            ssize_t
              endian;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            endian=ParseCommandOption(MagickEndianOptions,MagickFalse,
              argv[i]);
            if (endian < 0)
              ThrowImportException(OptionError,"UnrecognizedEndianType",
                argv[i]);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'f':
      {
        if (LocaleCompare("filter",option+1) == 0)
          {
            ssize_t
              filter;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            filter=ParseCommandOption(MagickFilterOptions,MagickFalse,argv[i]);
            if (filter < 0)
              ThrowImportException(OptionError,"UnrecognizedImageFilter",
                argv[i]);
            break;
          }
        if (LocaleCompare("frame",option+1) == 0)
          {
            (void) CopyMagickString(argv[i]+1,"sans0",MagickPathExtent);
            ximage_info.frame=(*option == '-') ? MagickTrue : MagickFalse;
            break;
          }
        if (LocaleCompare("format",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'g':
      {
        if (LocaleCompare("geometry",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("gravity",option+1) == 0)
          {
            ssize_t
              gravity;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            gravity=ParseCommandOption(MagickGravityOptions,MagickFalse,argv[i]);
            if (gravity < 0)
              ThrowImportException(OptionError,"UnrecognizedGravityType",
                argv[i]);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'h':
      {
        if (LocaleCompare("help",option+1) == 0)
          break;
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'i':
      {
        if (LocaleCompare("identify",option+1) == 0)
          break;
        if (LocaleCompare("interlace",option+1) == 0)
          {
            ssize_t
              interlace;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            interlace=ParseCommandOption(MagickInterlaceOptions,MagickFalse,
              argv[i]);
            if (interlace < 0)
              ThrowImportException(OptionError,"UnrecognizedInterlaceType",
                argv[i]);
            break;
          }
        if (LocaleCompare("interpolate",option+1) == 0)
          {
            ssize_t
              interpolate;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            interpolate=ParseCommandOption(MagickInterpolateOptions,MagickFalse,
              argv[i]);
            if (interpolate < 0)
              ThrowImportException(OptionError,"UnrecognizedInterpolateMethod",
                argv[i]);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'l':
      {
        if (LocaleCompare("label",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            status=SetImageOption(image_info,"label",argv[i]);
            if (status == MagickFalse)
              ThrowImportException(OptionError,"UnrecognizedOption",argv[i]);
            break;
          }
        if (LocaleCompare("limit",option+1) == 0)
          {
            char
              *p;

            double
              value;

            ssize_t
              resource;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            resource=ParseCommandOption(MagickResourceOptions,MagickFalse,
              argv[i]);
            if (resource < 0)
              ThrowImportException(OptionError,"UnrecognizedResourceType",
                argv[i]);
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            value=StringToDouble(argv[i],&p);
            (void) value;
            if ((p == argv[i]) && (LocaleCompare("unlimited",argv[i]) != 0))
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("list",option+1) == 0)
          {
            ssize_t
              list;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            list=ParseCommandOption(MagickListOptions,MagickFalse,argv[i]);
            if (list < 0)
              ThrowImportException(OptionError,"UnrecognizedListType",argv[i]);
            status=MogrifyImageInfo(image_info,(int) (i-j+1),(const char **)
              argv+j,exception);
            DestroyImport();
            return(status == 0 ? MagickTrue : MagickFalse);
          }
        if (LocaleCompare("log",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if ((i == (ssize_t) argc) || (strchr(argv[i],'%') == (char *) NULL))
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'm':
      {
        if (LocaleCompare("monitor",option+1) == 0)
          break;
        if (LocaleCompare("monochrome",option+1) == 0)
          {
            if (*option == '+')
              break;
            quantize_info->number_colors=2;
            quantize_info->colorspace=GRAYColorspace;
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'n':
      {
        if (LocaleCompare("negate",option+1) == 0)
          break;
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'p':
      {
        if (LocaleCompare("page",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            status=SetImageOption(image_info,"page",argv[i]);
            if (status == MagickFalse)
              ThrowImportException(OptionError,"UnrecognizedOption",argv[i]);
            break;
          }
        if (LocaleCompare("pause",option+1) == 0)
          {
            resource_info.pause=0;
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            resource_info.pause=(unsigned int) StringToUnsignedLong(argv[i]);
            break;
          }
        if (LocaleCompare("ping",option+1) == 0)
          break;  /* deprecated option */
        if (LocaleCompare("pointsize",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'q':
      {
        if (LocaleCompare("quality",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("quantize",option+1) == 0)
          {
            ssize_t
              colorspace;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            colorspace=ParseCommandOption(MagickColorspaceOptions,
              MagickFalse,argv[i]);
            if (colorspace < 0)
              ThrowImportException(OptionError,"UnrecognizedColorspace",
                argv[i]);
            break;
          }
        if (LocaleCompare("quiet",option+1) == 0)
          break;
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'r':
      {
        if (LocaleCompare("regard-warnings",option+1) == 0)
          break;
        if (LocaleCompare("repage",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("resize",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleNCompare("respect-parentheses",option+1,17) == 0)
          {
            respect_parenthesis=(*option == '-') ? MagickTrue : MagickFalse;
            break;
          }
        if (LocaleCompare("rotate",option+1) == 0)
          {
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 's':
      {
        if (LocaleCompare("sampling-factor",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("scene",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("set",option+1) == 0)
          {
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        if (LocaleCompare("screen",option+1) == 0)
          {
            ximage_info.screen=(*option == '-') ? MagickTrue : MagickFalse;
            break;
          }
        if (LocaleCompare("seed",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("silent",option+1) == 0)
          {
            ximage_info.silent=(*option == '-') ? MagickTrue : MagickFalse;
            break;
          }
        if (LocaleCompare("snaps",option+1) == 0)
          {
            (void) CopyMagickString(argv[i]+1,"sans",MagickPathExtent);
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            snapshots=(ssize_t) StringToLong(argv[i]);
            break;
          }
        if (LocaleCompare("strip",option+1) == 0)
          break;
        if (LocaleCompare("support",option+1) == 0)
          {
            i++;  /* deprecated */
            break;
          }
        if (LocaleCompare("synchronize",option+1) == 0)
          break;
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 't':
      {
        if (LocaleCompare("taint",option+1) == 0)
          break;
        if (LocaleCompare("thumbnail",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            break;
          }
        if (LocaleCompare("transparent",option+1) == 0)
          {
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        if (LocaleCompare("transparent-color",option+1) == 0)
          {
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            break;
          }
        if (LocaleCompare("treedepth",option+1) == 0)
          {
            quantize_info->tree_depth=0;
            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            if (IsGeometry(argv[i]) == MagickFalse)
              ThrowImportInvalidArgumentException(option,argv[i]);
            quantize_info->tree_depth=StringToUnsignedLong(argv[i]);
            break;
          }
        if (LocaleCompare("trim",option+1) == 0)
          break;
        if (LocaleCompare("type",option+1) == 0)
          {
            ssize_t
              type;

            if (*option == '+')
              break;
            i++;
            if (i == (ssize_t) argc)
              ThrowImportException(OptionError,"MissingArgument",option);
            type=ParseCommandOption(MagickTypeOptions,MagickFalse,argv[i]);
            if (type < 0)
              ThrowImportException(OptionError,"UnrecognizedImageType",argv[i]);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case 'w':
      {
        i++;
        if (i == (ssize_t) argc)
          ThrowImportException(OptionError,"MissingArgument",option);
        (void) CloneString(&target_window,argv[i]);
        break;
      }
      case 'v':
      {
        if (LocaleCompare("verbose",option+1) == 0)
          break;
        if ((LocaleCompare("version",option+1) == 0) ||
            (LocaleCompare("-version",option+1) == 0))
          {
            ListMagickVersion(stdout);
            break;
          }
        ThrowImportException(OptionError,"UnrecognizedOption",option);
      }
      case '?':
        break;
      default:
        ThrowImportException(OptionError,"UnrecognizedOption",option);
    }
    fire=(GetCommandOptionFlags(MagickCommandOptions,MagickFalse,option) &
      FireOptionFlag) == 0 ?  MagickFalse : MagickTrue;
    if (fire != MagickFalse)
      FireImageStack(MagickFalse,MagickTrue,MagickTrue);
  }
  if (k != 0)
    ThrowImportException(OptionError,"UnbalancedParenthesis",argv[i]);
  if (i-- != (ssize_t) argc)
    ThrowImportException(OptionError,"MissingAnImageFilename",argv[i]);
  if (image == (Image *) NULL)
    ThrowImportException(OptionError,"MissingAnImageFilename",argv[argc-1]);
  FinalizeImageSettings(image_info,image,MagickTrue);
  status&=WriteImages(image_info,image,filename,exception);
  DestroyImport();
  return(status != 0 ? MagickTrue : MagickFalse);
#else
  (void) argc;
  (void) argv;
  (void) ThrowMagickException(exception,GetMagickModule(),MissingDelegateError,
    "DelegateLibrarySupportNotBuiltIn","'%s' (X11)",image_info->filename);
  return(ImportUsage());
#endif
}
Exemplo n.º 8
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   L o a d P o l i c y C a c h e                                             %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  LoadPolicyCache() loads the policy configurations which provides a mapping
%  between policy attributes and a policy domain.
%
%  The format of the LoadPolicyCache method is:
%
%      MagickBooleanType LoadPolicyCache(LinkedListInfo *cache,const char *xml,
%        const char *filename,const size_t depth,ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o xml:  The policy list in XML format.
%
%    o filename:  The policy list filename.
%
%    o depth: depth of <include /> statements.
%
%    o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType LoadPolicyCache(LinkedListInfo *cache,const char *xml,
  const char *filename,const size_t depth,ExceptionInfo *exception)
{
  char
    keyword[MagickPathExtent],
    *token;

  const char
    *q;

  MagickStatusType
    status;

  PolicyInfo
    *policy_info;

  size_t
    extent;

  /*
    Load the policy map file.
  */
  (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
    "Loading policy file \"%s\" ...",filename);
  if (xml == (char *) NULL)
    return(MagickFalse);
  status=MagickTrue;
  policy_info=(PolicyInfo *) NULL;
  token=AcquireString(xml);
  extent=strlen(token)+MagickPathExtent;
  for (q=(const char *) xml; *q != '\0'; )
  {
    /*
      Interpret XML.
    */
    GetNextToken(q,&q,extent,token);
    if (*token == '\0')
      break;
    (void) CopyMagickString(keyword,token,MagickPathExtent);
    if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
      {
        /*
          Docdomain element.
        */
        while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
          GetNextToken(q,&q,extent,token);
        continue;
      }
    if (LocaleNCompare(keyword,"<!--",4) == 0)
      {
        /*
          Comment element.
        */
        while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
          GetNextToken(q,&q,extent,token);
        continue;
      }
    if (LocaleCompare(keyword,"<include") == 0)
      {
        /*
          Include element.
        */
        while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
        {
          (void) CopyMagickString(keyword,token,MagickPathExtent);
          GetNextToken(q,&q,extent,token);
          if (*token != '=')
            continue;
          GetNextToken(q,&q,extent,token);
          if (LocaleCompare(keyword,"file") == 0)
            {
              if (depth > MagickMaxRecursionDepth)
                (void) ThrowMagickException(exception,GetMagickModule(),
                  ConfigureError,"IncludeElementNestedTooDeeply","`%s'",token);
              else
                {
                  char
                    path[MagickPathExtent],
                    *file_xml;

                  GetPathComponent(filename,HeadPath,path);
                  if (*path != '\0')
                    (void) ConcatenateMagickString(path,DirectorySeparator,
                      MagickPathExtent);
                  if (*token == *DirectorySeparator)
                    (void) CopyMagickString(path,token,MagickPathExtent);
                  else
                    (void) ConcatenateMagickString(path,token,MagickPathExtent);
                  file_xml=FileToXML(path,~0UL);
                  if (file_xml != (char *) NULL)
                    {
                      status&=LoadPolicyCache(cache,file_xml,path,
                        depth+1,exception);
                      file_xml=DestroyString(file_xml);
                    }
                }
            }
        }
        continue;
      }
    if (LocaleCompare(keyword,"<policy") == 0)
      {
        /*
          Policy element.
        */
        policy_info=(PolicyInfo *) AcquireCriticalMemory(sizeof(*policy_info));
        (void) memset(policy_info,0,sizeof(*policy_info));
        policy_info->path=ConstantString(filename);
        policy_info->exempt=MagickFalse;
        policy_info->signature=MagickCoreSignature;
        continue;
      }
    if (policy_info == (PolicyInfo *) NULL)
      continue;
    if ((LocaleCompare(keyword,"/>") == 0) ||
        (LocaleCompare(keyword,"</policy>") == 0))
      {
        status=AppendValueToLinkedList(cache,policy_info);
        if (status == MagickFalse)
          (void) ThrowMagickException(exception,GetMagickModule(),
            ResourceLimitError,"MemoryAllocationFailed","`%s'",
            policy_info->name);
        policy_info=(PolicyInfo *) NULL;
        continue;
      }
    GetNextToken(q,(const char **) NULL,extent,token);
    if (*token != '=')
      continue;
    GetNextToken(q,&q,extent,token);
    GetNextToken(q,&q,extent,token);
    switch (*keyword)
    {
      case 'D':
      case 'd':
      {
        if (LocaleCompare((char *) keyword,"domain") == 0)
          {
            policy_info->domain=(PolicyDomain) ParseCommandOption(
              MagickPolicyDomainOptions,MagickTrue,token);
            break;
          }
        break;
      }
      case 'N':
      case 'n':
      {
        if (LocaleCompare((char *) keyword,"name") == 0)
          {
            policy_info->name=ConstantString(token);
            break;
          }
        break;
      }
      case 'P':
      case 'p':
      {
        if (LocaleCompare((char *) keyword,"pattern") == 0)
          {
            policy_info->pattern=ConstantString(token);
            break;
          }
        break;
      }
      case 'R':
      case 'r':
      {
        if (LocaleCompare((char *) keyword,"rights") == 0)
          {
            policy_info->rights=(PolicyRights) ParseCommandOption(
              MagickPolicyRightsOptions,MagickTrue,token);
            break;
          }
        break;
      }
      case 'S':
      case 's':
      {
        if (LocaleCompare((char *) keyword,"stealth") == 0)
          {
            policy_info->stealth=IsStringTrue(token);
            break;
          }
        break;
      }
      case 'V':
      case 'v':
      {
        if (LocaleCompare((char *) keyword,"value") == 0)
          {
            policy_info->value=ConstantString(token);
            break;
          }
        break;
      }
      default:
        break;
    }
  }
  token=(char *) RelinquishMagickMemory(token);
  return(status != 0 ? MagickTrue : MagickFalse);
}
Exemplo n.º 9
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   R e a d P A N G O I m a g e                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  ReadPANGOImage() reads an image in the Pango Markup Language Format.
%
%  The format of the ReadPANGOImage method is:
%
%      Image *ReadPANGOImage(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 *ReadPANGOImage(const ImageInfo *image_info,
  ExceptionInfo *exception)
{
  cairo_font_options_t
    *font_options;

  cairo_surface_t
    *surface;

  char
    *caption,
    *property;

  cairo_t
    *cairo_image;

  const char
    *option;

  DrawInfo
    *draw_info;

  Image
    *image;

  MagickBooleanType
    status;

  PangoAlignment
    align;

  PangoContext
    *context;

  PangoFontMap
    *fontmap;

  PangoGravity
    gravity;

  PangoLayout
    *layout;

  PangoRectangle
    extent;

  PixelInfo
    fill_color;

  RectangleInfo
    page;

  register unsigned char
    *p;

  size_t
    stride;

  ssize_t
    y;

  unsigned char
    *pixels;

  /*
    Initialize Image structure.
  */
  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,exception);
  (void) ResetImagePage(image,"0x0+0+0");
  /*
    Format caption.
  */
  option=GetImageArtifact(image,"filename");
  if (option == (const char *) NULL)
    property=InterpretImageProperties(image_info,image,image_info->filename,
      exception);
  else
    if (LocaleNCompare(option,"pango:",6) == 0)
      property=InterpretImageProperties(image_info,image,option+6,exception);
    else
      property=InterpretImageProperties(image_info,image,option,exception);
  (void) SetImageProperty(image,"caption",property,exception);
  property=DestroyString(property);
  caption=ConstantString(GetImageProperty(image,"caption",exception));
  /*
    Get context.
  */
  fontmap=pango_cairo_font_map_new();
  pango_cairo_font_map_set_resolution(PANGO_CAIRO_FONT_MAP(fontmap),
    image->resolution.x == 0.0 ? 90.0 : image->resolution.x);
  font_options=cairo_font_options_create();
  option=GetImageArtifact(image,"pango:hinting");
  if (option != (const char *) NULL)
    {
      if (LocaleCompare(option,"none") != 0)
        cairo_font_options_set_hint_style(font_options,CAIRO_HINT_STYLE_NONE);
      if (LocaleCompare(option,"full") != 0)
        cairo_font_options_set_hint_style(font_options,CAIRO_HINT_STYLE_FULL);
    }
  context=pango_font_map_create_context(fontmap);
  pango_cairo_context_set_font_options(context,font_options);
  cairo_font_options_destroy(font_options);
  option=GetImageArtifact(image,"pango:language");
  if (option != (const char *) NULL)
    pango_context_set_language(context,pango_language_from_string(option));
  draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL);
  pango_context_set_base_dir(context,draw_info->direction ==
    RightToLeftDirection ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR);
  switch (draw_info->gravity)
  {
    case NorthGravity:
    {
      gravity=PANGO_GRAVITY_NORTH;
      break;
    }
    case NorthWestGravity:
    case WestGravity:
    case SouthWestGravity:
    {
      gravity=PANGO_GRAVITY_WEST;
      break;
    }
    case NorthEastGravity:
    case EastGravity:
    case SouthEastGravity:
    {
      gravity=PANGO_GRAVITY_EAST;
      break;
    }
    case SouthGravity:
    {
      gravity=PANGO_GRAVITY_SOUTH;
      break;
    }
    default:
    {
      gravity=PANGO_GRAVITY_AUTO;
      break;
    }
  }
  pango_context_set_base_gravity(context,gravity);
  option=GetImageArtifact(image,"pango:gravity-hint");
  if (option != (const char *) NULL)
    {
      if (LocaleCompare(option,"line") == 0)
        pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_LINE);
      if (LocaleCompare(option,"natural") == 0)
        pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_NATURAL);
      if (LocaleCompare(option,"strong") == 0)
        pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_STRONG);
    }
  /*
    Configure layout.
  */
  layout=pango_layout_new(context);
  option=GetImageArtifact(image,"pango:auto-dir");
  if (option != (const char *) NULL)
    pango_layout_set_auto_dir(layout,1);
  option=GetImageArtifact(image,"pango:ellipsize");
  if (option != (const char *) NULL)
    {
      if (LocaleCompare(option,"end") == 0)
        pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_END);
      if (LocaleCompare(option,"middle") == 0)
        pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_MIDDLE);
      if (LocaleCompare(option,"none") == 0)
        pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_NONE);
      if (LocaleCompare(option,"start") == 0)
        pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_START);
    }
  option=GetImageArtifact(image,"pango:justify");
  if (IfMagickTrue(IsStringTrue(option)))
    pango_layout_set_justify(layout,1);
  option=GetImageArtifact(image,"pango:single-paragraph");
  if (IfMagickTrue(IsStringTrue(option)))
    pango_layout_set_single_paragraph_mode(layout,1);
  option=GetImageArtifact(image,"pango:wrap");
  if (option != (const char *) NULL)
    {
      if (LocaleCompare(option,"char") == 0)
        pango_layout_set_wrap(layout,PANGO_WRAP_CHAR);
      if (LocaleCompare(option,"word") == 0)
        pango_layout_set_wrap(layout,PANGO_WRAP_WORD);
      if (LocaleCompare(option,"word-char") == 0)
        pango_layout_set_wrap(layout,PANGO_WRAP_WORD_CHAR);
    }
  option=GetImageArtifact(image,"pango:indent");
  if (option != (const char *) NULL)
    pango_layout_set_indent(layout,(int) ((StringToLong(option)*
      (image->resolution.x == 0.0 ? 90.0 : image->resolution.x)*PANGO_SCALE+36)/
      90.0+0.5));
  switch (draw_info->align)
  {
    case CenterAlign: align=PANGO_ALIGN_CENTER; break;
    case RightAlign: align=PANGO_ALIGN_RIGHT; break;
    case LeftAlign: align=PANGO_ALIGN_LEFT; break;
    default:
    {
      if (draw_info->gravity == CenterGravity)
        {
          align=PANGO_ALIGN_CENTER;
          break;
        }
      align=PANGO_ALIGN_LEFT;
      break;
    }
  }
  if ((align != PANGO_ALIGN_CENTER) &&
      (draw_info->direction == RightToLeftDirection))
    align=(PangoAlignment) (PANGO_ALIGN_LEFT+PANGO_ALIGN_RIGHT-align);
  pango_layout_set_alignment(layout,align);
  if (draw_info->font != (char *) NULL)
    {
      PangoFontDescription
        *description;

      /*
        Set font.
      */
      description=pango_font_description_from_string(draw_info->font);
      pango_font_description_set_size(description,(int) (PANGO_SCALE*
        draw_info->pointsize+0.5));
      pango_layout_set_font_description(layout,description);
      pango_font_description_free(description);
    }
  option=GetImageArtifact(image,"pango:markup");
  if ((option != (const char *) NULL) && (IsStringTrue(option) == MagickFalse))
    pango_layout_set_text(layout,caption,-1);
  else
    {
      GError
        *error;

      error=(GError *) NULL;
      if (pango_parse_markup(caption,-1,0,NULL,NULL,NULL,&error) == 0)
        (void) ThrowMagickException(exception,GetMagickModule(),CoderError,
          error->message,"`%s'",image_info->filename);
      pango_layout_set_markup(layout,caption,-1);
    }
  pango_layout_context_changed(layout);
  page.x=0;
  page.y=0;
  if (image_info->page != (char *) NULL)
    (void) ParseAbsoluteGeometry(image_info->page,&page);
  if (image->columns == 0)
    {
      pango_layout_get_extents(layout,NULL,&extent);
      image->columns=(extent.x+extent.width+PANGO_SCALE/2)/PANGO_SCALE+2*page.x;
    }
  else
    {
      image->columns-=2*page.x;
      pango_layout_set_width(layout,(int) ((PANGO_SCALE*image->columns*
        (image->resolution.x == 0.0 ? 90.0 : image->resolution.x)+45.0)/90.0+
        0.5));
    }
  if (image->rows == 0)
    {
      pango_layout_get_extents(layout,NULL,&extent);
      image->rows=(extent.y+extent.height+PANGO_SCALE/2)/PANGO_SCALE+2*page.y;
    }
  else
    {
      image->rows-=2*page.y;
      pango_layout_set_height(layout,(int) ((PANGO_SCALE*image->rows*
        (image->resolution.y == 0.0 ? 90.0 : image->resolution.y)+45.0)/90.0+
        0.5));
    }
  /*
    Render markup.
  */
  stride=(size_t) cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32,
    image->columns);
  pixels=(unsigned char *) AcquireQuantumMemory(image->rows,stride*
    sizeof(*pixels));
  if (pixels == (unsigned char *) NULL)
    {
      draw_info=DestroyDrawInfo(draw_info);
      caption=DestroyString(caption);
      ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
    }
  surface=cairo_image_surface_create_for_data(pixels,CAIRO_FORMAT_ARGB32,
    image->columns,image->rows,stride);
  cairo_image=cairo_create(surface);
  cairo_set_operator(cairo_image,CAIRO_OPERATOR_CLEAR);
  cairo_paint(cairo_image);
  cairo_set_operator(cairo_image,CAIRO_OPERATOR_OVER);
  cairo_translate(cairo_image,page.x,page.y);
  pango_cairo_show_layout(cairo_image,layout);
  cairo_destroy(cairo_image);
  cairo_surface_destroy(surface);
  g_object_unref(layout);
  g_object_unref(fontmap);
  /*
    Convert surface to image.
  */
  (void) SetImageBackgroundColor(image,exception);
  p=pixels;
  GetPixelInfo(image,&fill_color);
  for (y=0; y < (ssize_t) image->rows; y++)
  {
    register Quantum
      *q;

    register ssize_t
      x;

    q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
    if (q == (Quantum *) NULL)
      break;
    for (x=0; x < (ssize_t) image->columns; x++)
    {
      double
        gamma;

      fill_color.blue=(double) ScaleCharToQuantum(*p++);
      fill_color.green=(double) ScaleCharToQuantum(*p++);
      fill_color.red=(double) ScaleCharToQuantum(*p++);
      fill_color.alpha=(double) ScaleCharToQuantum(*p++);
      /*
        Disassociate alpha.
      */
      gamma=1.0-QuantumScale*fill_color.alpha;
      gamma=PerceptibleReciprocal(gamma);
      fill_color.blue*=gamma;
      fill_color.green*=gamma;
      fill_color.red*=gamma;
      CompositePixelOver(image,&fill_color,fill_color.alpha,q,(double)
        GetPixelAlpha(image,q),q);
      q+=GetPixelChannels(image);
    }
    if (SyncAuthenticPixels(image,exception) == MagickFalse)
      break;
    if (image->previous == (Image *) NULL)
      {
        status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
        image->rows);
        if (status == MagickFalse)
          break;
      }
  }
  /*
    Relinquish resources.
  */
  pixels=(unsigned char *) RelinquishMagickMemory(pixels);
  draw_info=DestroyDrawInfo(draw_info);
  caption=DestroyString(caption);
  return(GetFirstImageInList(image));
}
Exemplo n.º 10
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   R e a d S C R E E N S H O T I m a g e                                     %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  ReadSCREENSHOTImage() Takes a screenshot from the monitor(s).
%
%  The format of the ReadSCREENSHOTImage method is:
%
%      Image *ReadXImage(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 *ReadSCREENSHOTImage(const ImageInfo *image_info,
  ExceptionInfo *exception)
{
  Image
    *image;

  assert(image_info->signature == MagickCoreSignature);
  if (image_info->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
      image_info->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickCoreSignature);
  image=(Image *) NULL;
#if defined(MAGICKCORE_WINGDI32_DELEGATE)
  {
    BITMAPINFO
      bmi;

    DISPLAY_DEVICE
      device;

    HBITMAP
      bitmap,
      bitmapOld;

    HDC
      bitmapDC,
      hDC;

    Image
      *screen;

    int
      i;

    MagickBooleanType
      status;

    register Quantum
      *q;

    register ssize_t
      x;

    RGBQUAD
      *p;

    ssize_t
      y;

    assert(image_info != (const ImageInfo *) NULL);
    i=0;
    device.cb = sizeof(device);
    image=(Image *) NULL;
    while(EnumDisplayDevices(NULL,i,&device,0) && ++i)
    {
      if ((device.StateFlags & DISPLAY_DEVICE_ACTIVE) != DISPLAY_DEVICE_ACTIVE)
        continue;

      hDC=CreateDC(device.DeviceName,device.DeviceName,NULL,NULL);
      if (hDC == (HDC) NULL)
        ThrowReaderException(CoderError,"UnableToCreateDC");

      screen=AcquireImage(image_info,exception);
      screen->columns=(size_t) GetDeviceCaps(hDC,HORZRES);
      screen->rows=(size_t) GetDeviceCaps(hDC,VERTRES);
      screen->storage_class=DirectClass;
      if (image == (Image *) NULL)
        image=screen;
      else
        AppendImageToList(&image,screen);
      status=SetImageExtent(screen,screen->columns,screen->rows,exception);
      if (status == MagickFalse)
        return(DestroyImageList(image));

      bitmapDC=CreateCompatibleDC(hDC);
      if (bitmapDC == (HDC) NULL)
        {
          DeleteDC(hDC);
          ThrowReaderException(CoderError,"UnableToCreateDC");
        }
      (void) memset(&bmi,0,sizeof(BITMAPINFO));
      bmi.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
      bmi.bmiHeader.biWidth=(LONG) screen->columns;
      bmi.bmiHeader.biHeight=(-1)*(LONG) screen->rows;
      bmi.bmiHeader.biPlanes=1;
      bmi.bmiHeader.biBitCount=32;
      bmi.bmiHeader.biCompression=BI_RGB;
      bitmap=CreateDIBSection(hDC,&bmi,DIB_RGB_COLORS,(void **) &p,NULL,0);
      if (bitmap == (HBITMAP) NULL)
        {
          DeleteDC(hDC);
          DeleteDC(bitmapDC);
          ThrowReaderException(CoderError,"UnableToCreateBitmap");
        }
      bitmapOld=(HBITMAP) SelectObject(bitmapDC,bitmap);
      if (bitmapOld == (HBITMAP) NULL)
        {
          DeleteDC(hDC);
          DeleteDC(bitmapDC);
          DeleteObject(bitmap);
          ThrowReaderException(CoderError,"UnableToCreateBitmap");
        }
      BitBlt(bitmapDC,0,0,(int) screen->columns,(int) screen->rows,hDC,0,0,
        SRCCOPY);
      (void) SelectObject(bitmapDC,bitmapOld);

      for (y=0; y < (ssize_t) screen->rows; y++)
      {
        q=QueueAuthenticPixels(screen,0,y,screen->columns,1,exception);
        if (q == (Quantum *) NULL)
          break;
        for (x=0; x < (ssize_t) screen->columns; x++)
        {
          SetPixelRed(image,ScaleCharToQuantum(p->rgbRed),q);
          SetPixelGreen(image,ScaleCharToQuantum(p->rgbGreen),q);
          SetPixelBlue(image,ScaleCharToQuantum(p->rgbBlue),q);
          SetPixelAlpha(image,OpaqueAlpha,q);
          p++;
          q+=GetPixelChannels(image);
        }
        if (SyncAuthenticPixels(screen,exception) == MagickFalse)
          break;
      }

      DeleteDC(hDC);
      DeleteDC(bitmapDC);
      DeleteObject(bitmap);
    }
  }
#elif defined(MAGICKCORE_X11_DELEGATE)
  {
    const char
      *option;

    XImportInfo
      ximage_info;

    XGetImportInfo(&ximage_info);
    option=GetImageOption(image_info,"x:screen");
    if (option != (const char *) NULL)
      ximage_info.screen=IsStringTrue(option);
    option=GetImageOption(image_info,"x:silent");
    if (option != (const char *) NULL)
      ximage_info.silent=IsStringTrue(option);
    image=XImportImage(image_info,&ximage_info,exception);
  }
#endif
  return(image);
}
Exemplo n.º 11
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   L o a d M a g i c C a c h e                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  LoadMagicCache() loads the magic configurations which provides a mapping
%  between magic attributes and a magic name.
%
%  The format of the LoadMagicCache method is:
%
%      MagickBooleanType LoadMagicCache(LinkedListInfo *magic_cache,
%        const char *xml,const char *filename,const size_t depth,
%        ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o xml: The magic list in XML format.
%
%    o filename: The magic list filename.
%
%    o depth: depth of <include /> statements.
%
%    o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType LoadMagicCache(LinkedListInfo *magic_cache,
  const char *xml,const char *filename,const size_t depth,
  ExceptionInfo *exception)
{
  char
    keyword[MagickPathExtent],
    *token;

  const char
    *q;

  MagicInfo
    *magic_info;

  MagickStatusType
    status;

  size_t
    extent;

  /*
    Load the magic map file.
  */
  (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
    "Loading magic configure file \"%s\" ...",filename);
  if (xml == (char *) NULL)
    return(MagickFalse);
  status=MagickTrue;
  magic_info=(MagicInfo *) NULL;
  token=AcquireString(xml);
  extent=strlen(token)+MagickPathExtent;
  for (q=(char *) xml; *q != '\0'; )
  {
    /*
      Interpret XML.
    */
    GetNextToken(q,&q,extent,token);
    if (*token == '\0')
      break;
    (void) CopyMagickString(keyword,token,MagickPathExtent);
    if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
      {
        /*
          Doctype element.
        */
        while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
          GetNextToken(q,&q,extent,token);
        continue;
      }
    if (LocaleNCompare(keyword,"<!--",4) == 0)
      {
        /*
          Comment element.
        */
        while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
          GetNextToken(q,&q,extent,token);
        continue;
      }
    if (LocaleCompare(keyword,"<include") == 0)
      {
        /*
          Include element.
        */
        while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
        {
          (void) CopyMagickString(keyword,token,MagickPathExtent);
          GetNextToken(q,&q,extent,token);
          if (*token != '=')
            continue;
          GetNextToken(q,&q,extent,token);
          if (LocaleCompare(keyword,"file") == 0)
            {
              if (depth > 200)
                (void) ThrowMagickException(exception,GetMagickModule(),
                  ConfigureError,"IncludeElementNestedTooDeeply","`%s'",token);
              else
                {
                  char
                    path[MagickPathExtent],
                    *file_xml;

                  GetPathComponent(filename,HeadPath,path);
                  if (*path != '\0')
                    (void) ConcatenateMagickString(path,DirectorySeparator,
                      MagickPathExtent);
                  if (*token == *DirectorySeparator)
                    (void) CopyMagickString(path,token,MagickPathExtent);
                  else
                    (void) ConcatenateMagickString(path,token,MagickPathExtent);
                  file_xml=FileToXML(path,~0UL);
                  if (xml != (char *) NULL)
                    {
                      status&=LoadMagicCache(magic_cache,file_xml,path,depth+1,
                        exception);
                      file_xml=DestroyString(file_xml);
                    }
                }
            }
        }
        continue;
      }
    if (LocaleCompare(keyword,"<magic") == 0)
      {
        /*
          Magic element.
        */
        magic_info=(MagicInfo *) AcquireMagickMemory(sizeof(*magic_info));
        if (magic_info == (MagicInfo *) NULL)
          ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
        (void) ResetMagickMemory(magic_info,0,sizeof(*magic_info));
        magic_info->path=ConstantString(filename);
        magic_info->exempt=MagickFalse;
        magic_info->signature=MagickCoreSignature;
        continue;
      }
    if (magic_info == (MagicInfo *) NULL)
      continue;
    if (LocaleCompare(keyword,"/>") == 0)
      {
        status=InsertValueInSortedLinkedList(magic_cache,CompareMagickInfoSize,
          NULL,magic_info);
        if (status == MagickFalse)
          (void) ThrowMagickException(exception,GetMagickModule(),
            ResourceLimitError,"MemoryAllocationFailed","`%s'",
            magic_info->name);
        magic_info=(MagicInfo *) NULL;
        continue;
      }
    GetNextToken(q,(const char **) NULL,extent,token);
    if (*token != '=')
      continue;
    GetNextToken(q,&q,extent,token);
    GetNextToken(q,&q,extent,token);
    switch (*keyword)
    {
      case 'N':
      case 'n':
      {
        if (LocaleCompare((char *) keyword,"name") == 0)
          {
            magic_info->name=ConstantString(token);
            break;
          }
        break;
      }
      case 'O':
      case 'o':
      {
        if (LocaleCompare((char *) keyword,"offset") == 0)
          {
            magic_info->offset=(MagickOffsetType) StringToLong(token);
            break;
          }
        break;
      }
      case 'S':
      case 's':
      {
        if (LocaleCompare((char *) keyword,"stealth") == 0)
          {
            magic_info->stealth=IsStringTrue(token);
            break;
          }
        break;
      }
      case 'T':
      case 't':
      {
        if (LocaleCompare((char *) keyword,"target") == 0)
          {
            char
              *p;

            register unsigned char
              *q;

            size_t
              length;

            length=strlen(token);
            magic_info->target=ConstantString(token);
            magic_info->magic=(unsigned char *) ConstantString(token);
            q=magic_info->magic;
            for (p=magic_info->target; *p != '\0'; )
            {
              if (*p == '\\')
                {
                  p++;
                  if (isdigit((int) ((unsigned char) *p)) != 0)
                    {
                      char
                        *end;

                      *q++=(unsigned char) strtol(p,&end,8);
                      p+=(end-p);
                      magic_info->length++;
                      continue;
                    }
                  switch (*p)
                  {
                    case 'b': *q='\b'; break;
                    case 'f': *q='\f'; break;
                    case 'n': *q='\n'; break;
                    case 'r': *q='\r'; break;
                    case 't': *q='\t'; break;
                    case 'v': *q='\v'; break;
                    case 'a': *q='a'; break;
                    case '?': *q='\?'; break;
                    default: *q=(unsigned char) (*p); break;
                  }
                  p++;
                  q++;
                  magic_info->length++;
                  continue;
                }
              else
                if (LocaleNCompare(p,"&amp;",5) == 0)
                  (void) CopyMagickString(p+1,p+5,length-magic_info->length);
              *q++=(unsigned char) (*p++);
              magic_info->length++;
            }
            break;
          }
        break;
      }
      default:
        break;
    }
  }
  token=(char *) RelinquishMagickMemory(token);
  return(status != 0 ? MagickTrue : MagickFalse);
}
Exemplo n.º 12
0
static MagickBooleanType WritePCLImage(const ImageInfo *image_info,Image *image,
  ExceptionInfo *exception)
{
  char
    buffer[MagickPathExtent];

  CompressionType
    compression;

  const char
    *option;

  MagickBooleanType
    status;

  MagickOffsetType
    scene;

  register const Quantum *p;

  register ssize_t i, x;

  register unsigned char *q;

  size_t
    density,
    length,
    one,
    packets;

  ssize_t
    y;

  unsigned char
    bits_per_pixel,
    *compress_pixels,
    *pixels,
    *previous_pixels;

  /*
    Open output image file.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickCoreSignature);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickCoreSignature);
  status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
  if (status == MagickFalse)
    return(status);
  density=75;
  if (image_info->density != (char *) NULL)
    {
      GeometryInfo
        geometry;

      (void) ParseGeometry(image_info->density,&geometry);
      density=(size_t) geometry.rho;
    }
  scene=0;
  one=1;
  do
  {
    /*
      Initialize the printer.
    */
    (void) TransformImageColorspace(image,sRGBColorspace,exception);
    (void) WriteBlobString(image,"\033E");  /* printer reset */
    (void) WriteBlobString(image,"\033*r3F");  /* set presentation mode */
    (void) FormatLocaleString(buffer,MagickPathExtent,"\033*r%.20gs%.20gT",
      (double) image->columns,(double) image->rows);
    (void) WriteBlobString(image,buffer);
    (void) FormatLocaleString(buffer,MagickPathExtent,"\033*t%.20gR",(double)
      density);
    (void) WriteBlobString(image,buffer);
    (void) WriteBlobString(image,"\033&l0E");  /* top margin 0 */
    if (SetImageMonochrome(image,exception) != MagickFalse)
      {
        /*
          Monochrome image: use default printer monochrome setup.
        */
        bits_per_pixel=1;
      }
    else
      if (image->storage_class == DirectClass)
        {
          /*
            DirectClass image.
          */
          bits_per_pixel=24;
          (void) WriteBlobString(image,"\033*v6W"); /* set color mode */
          (void) WriteBlobByte(image,0); /* RGB */
          (void) WriteBlobByte(image,3); /* direct by pixel */
          (void) WriteBlobByte(image,0); /* bits per index (ignored) */
          (void) WriteBlobByte(image,8); /* bits per red component */
          (void) WriteBlobByte(image,8); /* bits per green component */
          (void) WriteBlobByte(image,8); /* bits per blue component */
        }
      else
        {
          /*
            Colormapped image.
          */
          bits_per_pixel=8;
          (void) WriteBlobString(image,"\033*v6W"); /* set color mode... */
          (void) WriteBlobByte(image,0); /* RGB */
          (void) WriteBlobByte(image,1); /* indexed by pixel */
          (void) WriteBlobByte(image,bits_per_pixel); /* bits per index */
          (void) WriteBlobByte(image,8); /* bits per red component */
          (void) WriteBlobByte(image,8); /* bits per green component */
          (void) WriteBlobByte(image,8); /* bits per blue component */
          for (i=0; i < (ssize_t) image->colors; i++)
          {
            (void) FormatLocaleString(buffer,MagickPathExtent,
              "\033*v%da%db%dc%.20gI",
              ScaleQuantumToChar(image->colormap[i].red),
              ScaleQuantumToChar(image->colormap[i].green),
              ScaleQuantumToChar(image->colormap[i].blue),(double) i);
            (void) WriteBlobString(image,buffer);
          }
          for (one=1; i < (ssize_t) (one << bits_per_pixel); i++)
          {
            (void) FormatLocaleString(buffer,MagickPathExtent,"\033*v%.20gI",
              (double) i);
            (void) WriteBlobString(image,buffer);
          }
        }
    option=GetImageOption(image_info,"pcl:fit-to-page");
    if (IsStringTrue(option) != MagickFalse)
      (void) WriteBlobString(image,"\033*r3A");
    else
      (void) WriteBlobString(image,"\033*r1A");  /* start raster graphics */
    (void) WriteBlobString(image,"\033*b0Y");  /* set y offset */
    length=(image->columns*bits_per_pixel+7)/8;
    pixels=(unsigned char *) AcquireQuantumMemory(length+1,sizeof(*pixels));
    if (pixels == (unsigned char *) NULL)
      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
    (void) ResetMagickMemory(pixels,0,(length+1)*sizeof(*pixels));
    compress_pixels=(unsigned char *) NULL;
    previous_pixels=(unsigned char *) NULL;

    compression=UndefinedCompression;
    if (image_info->compression != UndefinedCompression)
      compression=image_info->compression;
    switch (compression)
    {
      case NoCompression:
      {
        (void) FormatLocaleString(buffer,MagickPathExtent,"\033*b0M");
        (void) WriteBlobString(image,buffer);
        break;
      }
      case RLECompression:
      {
        compress_pixels=(unsigned char *) AcquireQuantumMemory(length+256,
          sizeof(*compress_pixels));
        if (compress_pixels == (unsigned char *) NULL)
          {
            pixels=(unsigned char *) RelinquishMagickMemory(pixels);
            ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
          }
        (void) ResetMagickMemory(compress_pixels,0,(length+256)*
          sizeof(*compress_pixels));
        (void) FormatLocaleString(buffer,MagickPathExtent,"\033*b2M");
        (void) WriteBlobString(image,buffer);
        break;
      }
      default:
      {
        compress_pixels=(unsigned char *) AcquireQuantumMemory(3*length+256,
          sizeof(*compress_pixels));
        if (compress_pixels == (unsigned char *) NULL)
          {
            pixels=(unsigned char *) RelinquishMagickMemory(pixels);
            ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
          }
        (void) ResetMagickMemory(compress_pixels,0,(3*length+256)*
          sizeof(*compress_pixels));
        previous_pixels=(unsigned char *) AcquireQuantumMemory(length+1,
          sizeof(*previous_pixels));
        if (previous_pixels == (unsigned char *) NULL)
          {
            compress_pixels=(unsigned char *) RelinquishMagickMemory(
              compress_pixels);
            pixels=(unsigned char *) RelinquishMagickMemory(pixels);
            ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
          }
        (void) ResetMagickMemory(previous_pixels,0,(length+1)*
          sizeof(*previous_pixels));
        (void) FormatLocaleString(buffer,MagickPathExtent,"\033*b3M");
        (void) WriteBlobString(image,buffer);
        break;
      }
    }
    for (y=0; y < (ssize_t) image->rows; y++)
    {
      p=GetVirtualPixels(image,0,y,image->columns,1,exception);
      if (p == (const Quantum *) NULL)
        break;
      q=pixels;
      switch (bits_per_pixel)
      {
        case 1:
        {
          register unsigned char
            bit,
            byte;

          /*
            Monochrome image.
          */
          bit=0;
          byte=0;
          for (x=0; x < (ssize_t) image->columns; x++)
          {
            byte<<=1;
            if (GetPixelLuma(image,p) < (QuantumRange/2.0))
              byte|=0x01;
            bit++;
            if (bit == 8)
              {
                *q++=byte;
                bit=0;
                byte=0;
              }
            p+=GetPixelChannels(image);
          }
          if (bit != 0)
            *q++=byte << (8-bit);
          break;
        }
        case 8:
        {
          /*
            Colormapped image.
          */
          for (x=0; x < (ssize_t) image->columns; x++)
          {
            *q++=(unsigned char) GetPixelIndex(image,p);
            p+=GetPixelChannels(image);
          }
          break;
        }
        case 24:
        case 32:
        {
          /*
            Truecolor image.
          */
          for (x=0; x < (ssize_t) image->columns; x++)
          {
            *q++=ScaleQuantumToChar(GetPixelRed(image,p));
            *q++=ScaleQuantumToChar(GetPixelGreen(image,p));
            *q++=ScaleQuantumToChar(GetPixelBlue(image,p));
            p+=GetPixelChannels(image);
          }
          break;
        }
      }
      switch (compression)
      {
        case NoCompression:
        {
          (void) FormatLocaleString(buffer,MagickPathExtent,"\033*b%.20gW",
            (double) length);
          (void) WriteBlobString(image,buffer);
          (void) WriteBlob(image,length,pixels);
          break;
        }
        case RLECompression:
        {
          packets=PCLPackbitsCompressImage(length,pixels,compress_pixels);
          (void) FormatLocaleString(buffer,MagickPathExtent,"\033*b%.20gW",
            (double) packets);
          (void) WriteBlobString(image,buffer);
          (void) WriteBlob(image,packets,compress_pixels);
          break;
        }
        default:
        {
          if (y == 0)
            for (i=0; i < (ssize_t) length; i++)
              previous_pixels[i]=(~pixels[i]);
          packets=PCLDeltaCompressImage(length,previous_pixels,pixels,
            compress_pixels);
          (void) FormatLocaleString(buffer,MagickPathExtent,"\033*b%.20gW",
            (double) packets);
          (void) WriteBlobString(image,buffer);
          (void) WriteBlob(image,packets,compress_pixels);
          (void) CopyMagickMemory(previous_pixels,pixels,length*
            sizeof(*pixels));
          break;
        }
      }
    }
    (void) WriteBlobString(image,"\033*rB");  /* end graphics */
    switch (compression)
    {
      case NoCompression:
        break;
      case RLECompression:
      {
        compress_pixels=(unsigned char *) RelinquishMagickMemory(
          compress_pixels);
        break;
      }
      default:
      {
        previous_pixels=(unsigned char *) RelinquishMagickMemory(
          previous_pixels);
        compress_pixels=(unsigned char *) RelinquishMagickMemory(
          compress_pixels);
        break;
      }
    }
    pixels=(unsigned char *) RelinquishMagickMemory(pixels);
    if (GetNextImageInList(image) == (Image *) NULL)
      break;
    image=SyncNextImageInList(image);
    status=SetImageProgress(image,SaveImagesTag,scene++,
      GetImageListLength(image));
    if (status == MagickFalse)
      break;
  } while (image_info->adjoin != MagickFalse);
  (void) WriteBlobString(image,"\033E");
  (void) CloseBlob(image);
  return(MagickTrue);
}
Exemplo n.º 13
0
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);
}
Exemplo n.º 14
0
MagickExport Image *ConnectedComponentsImage(const Image *image,
        const size_t connectivity,ExceptionInfo *exception)
{
#define ConnectedComponentsImageTag  "ConnectedComponents/Image"

    CacheView
    *image_view,
    *component_view;

    const char
    *artifact;

    double
    area_threshold;

    Image
    *component_image;

    MagickBooleanType
    status;

    MagickOffsetType
    progress;

    MatrixInfo
    *equivalences;

    size_t
    size;

    ssize_t
    n,
    y;

    /*
      Initialize connected components image attributes.
    */
    assert(image != (Image *) NULL);
    assert(image->signature == MagickCoreSignature);
    if (image->debug != MagickFalse)
        (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
    assert(exception != (ExceptionInfo *) NULL);
    assert(exception->signature == MagickCoreSignature);
    component_image=CloneImage(image,image->columns,image->rows,MagickTrue,
                               exception);
    if (component_image == (Image *) NULL)
        return((Image *) NULL);
    component_image->depth=MAGICKCORE_QUANTUM_DEPTH;
    component_image->colorspace=GRAYColorspace;
    status=SetImageStorageClass(component_image,DirectClass,exception);
    if (status == MagickFalse)
    {
        component_image=DestroyImage(component_image);
        return((Image *) NULL);
    }
    /*
      Initialize connected components equivalences.
    */
    size=image->columns*image->rows;
    if (image->columns != (size/image->rows))
    {
        component_image=DestroyImage(component_image);
        ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
    }
    equivalences=AcquireMatrixInfo(size,1,sizeof(ssize_t),exception);
    if (equivalences == (MatrixInfo *) NULL)
    {
        component_image=DestroyImage(component_image);
        return((Image *) NULL);
    }
    for (n=0; n < (ssize_t) (image->columns*image->rows); n++)
        status=SetMatrixElement(equivalences,n,0,&n);
    /*
      Find connected components.
    */
    status=MagickTrue;
    progress=0;
    image_view=AcquireVirtualCacheView(image,exception);
    for (n=0; n < (ssize_t) (connectivity > 4 ? 4 : 2); n++)
    {
        ssize_t
        connect4[2][2] = { { -1,  0 }, {  0, -1 } },
        connect8[4][2] = { { -1, -1 }, { -1,  0 }, { -1,  1 }, {  0, -1 } },
        dx,
        dy;

        if (status == MagickFalse)
            continue;
        dy=connectivity > 4 ? connect8[n][0] : connect4[n][0];
        dx=connectivity > 4 ? connect8[n][1] : connect4[n][1];
        for (y=0; y < (ssize_t) image->rows; y++)
        {
            register const Quantum
            *magick_restrict p;

            register ssize_t
            x;

            if (status == MagickFalse)
                continue;
            p=GetCacheViewVirtualPixels(image_view,0,y-1,image->columns,3,exception);
            if (p == (const Quantum *) NULL)
            {
                status=MagickFalse;
                continue;
            }
            p+=GetPixelChannels(image)*image->columns;
            for (x=0; x < (ssize_t) image->columns; x++)
            {
                PixelInfo
                pixel,
                target;

                ssize_t
                neighbor_offset,
                object,
                offset,
                ox,
                oy,
                root;

                /*
                  Is neighbor an authentic pixel and a different color than the pixel?
                */
                GetPixelInfoPixel(image,p,&pixel);
                neighbor_offset=dy*(GetPixelChannels(image)*image->columns)+dx*
                                GetPixelChannels(image);
                GetPixelInfoPixel(image,p+neighbor_offset,&target);
                if (((x+dx) < 0) || ((x+dx) >= (ssize_t) image->columns) ||
                        ((y+dy) < 0) || ((y+dy) >= (ssize_t) image->rows) ||
                        (IsFuzzyEquivalencePixelInfo(&pixel,&target) == MagickFalse))
                {
                    p+=GetPixelChannels(image);
                    continue;
                }
                /*
                  Resolve this equivalence.
                */
                offset=y*image->columns+x;
                neighbor_offset=dy*image->columns+dx;
                ox=offset;
                status=GetMatrixElement(equivalences,ox,0,&object);
                while (object != ox)
                {
                    ox=object;
                    status=GetMatrixElement(equivalences,ox,0,&object);
                }
                oy=offset+neighbor_offset;
                status=GetMatrixElement(equivalences,oy,0,&object);
                while (object != oy)
                {
                    oy=object;
                    status=GetMatrixElement(equivalences,oy,0,&object);
                }
                if (ox < oy)
                {
                    status=SetMatrixElement(equivalences,oy,0,&ox);
                    root=ox;
                }
                else
                {
                    status=SetMatrixElement(equivalences,ox,0,&oy);
                    root=oy;
                }
                ox=offset;
                status=GetMatrixElement(equivalences,ox,0,&object);
                while (object != root)
                {
                    status=GetMatrixElement(equivalences,ox,0,&object);
                    status=SetMatrixElement(equivalences,ox,0,&root);
                }
                oy=offset+neighbor_offset;
                status=GetMatrixElement(equivalences,oy,0,&object);
                while (object != root)
                {
                    status=GetMatrixElement(equivalences,oy,0,&object);
                    status=SetMatrixElement(equivalences,oy,0,&root);
                }
                status=SetMatrixElement(equivalences,y*image->columns+x,0,&root);
                p+=GetPixelChannels(image);
            }
        }
    }
    image_view=DestroyCacheView(image_view);
    /*
      Label connected components.
    */
    n=0;
    component_view=AcquireAuthenticCacheView(component_image,exception);
    for (y=0; y < (ssize_t) component_image->rows; y++)
    {
        register Quantum
        *magick_restrict q;

        register ssize_t
        x;

        if (status == MagickFalse)
            continue;
        q=QueueCacheViewAuthenticPixels(component_view,0,y,component_image->columns,
                                        1,exception);
        if (q == (Quantum *) NULL)
        {
            status=MagickFalse;
            continue;
        }
        for (x=0; x < (ssize_t) component_image->columns; x++)
        {
            ssize_t
            object,
            offset;

            offset=y*image->columns+x;
            status=GetMatrixElement(equivalences,offset,0,&object);
            if (object == offset)
            {
                object=n++;
                status=SetMatrixElement(equivalences,offset,0,&object);
            }
            else
            {
                status=GetMatrixElement(equivalences,object,0,&object);
                status=SetMatrixElement(equivalences,offset,0,&object);
            }
            *q=(Quantum) (object > (ssize_t) QuantumRange ? (ssize_t) QuantumRange :
                          object);
            q+=GetPixelChannels(component_image);
        }
        if (SyncCacheViewAuthenticPixels(component_view,exception) == MagickFalse)
            status=MagickFalse;
        if (image->progress_monitor != (MagickProgressMonitor) NULL)
        {
            MagickBooleanType
            proceed;

            proceed=SetImageProgress(image,ConnectedComponentsImageTag,progress++,
                                     image->rows);
            if (proceed == MagickFalse)
                status=MagickFalse;
        }
    }
    component_view=DestroyCacheView(component_view);
    equivalences=DestroyMatrixInfo(equivalences);
    if (n > (ssize_t) QuantumRange)
    {
        component_image=DestroyImage(component_image);
        ThrowImageException(ResourceLimitError,"TooManyObjects");
    }
    artifact=GetImageArtifact(image,"connected-components:area-threshold");
    area_threshold=0.0;
    if (artifact != (const char *) NULL)
        area_threshold=StringToDouble(artifact,(char **) NULL);
    if (area_threshold > 0.0)
        status=MergeConnectedComponents(component_image,(size_t) n,area_threshold,
                                        exception);
    artifact=GetImageArtifact(image,"connected-components:verbose");
    if (IsStringTrue(artifact) != MagickFalse)
        status=StatisticsComponentsStatistics(image,component_image,(size_t) n,
                                              exception);
    if (status == MagickFalse)
        component_image=DestroyImage(component_image);
    return(component_image);
}
	/** Return VTRUE of VFALSE based on the parameter value. The strings
	True, Yes, On and 1 are considered VTRUE, while everything else is
	considered VFALSE, as is NULL. The strings are not case sensitive. It
	is not valid to use this function for parameter strings that contain
	multiple parameters separated by a delimiter.*/
	VBOOL				GetParameterBOOL() const
		{ return IsStringTrue(m_strParameter); }