Beispiel #1
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   C L I C a t c h E x c e p t i o n                                         %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  CLICatchException() will report exceptions, either just non-fatal warnings
%  only, or all errors, according to 'all_execeptions' boolean argument.
%
%  The function returns true if errors are fatal, in which case the caller
%  should abort and re-call with an 'all_exceptions' argument of true before
%  quitting.
%
%  The cut-off level between fatal and non-fatal may be controlled by options
%  (FUTURE), but defaults to 'Error' exceptions.
%
%  The format of the CLICatchException method is:
%
%    MagickBooleanType CLICatchException(MagickCLI *cli_wand,
%              const MagickBooleanType all_exceptions );
%
%  Arguments are
%
%    o cli_wand:   The Wand CLI that holds the exception Information
%
%    o all_exceptions:   Report all exceptions, including the fatal one
%
*/
WandExport MagickBooleanType CLICatchException(MagickCLI *cli_wand,
     const MagickBooleanType all_exceptions )
{
  MagickBooleanType
    status;
  assert(cli_wand != (MagickCLI *) NULL);
  assert(cli_wand->signature == WandSignature);
  assert(cli_wand->wand.signature == WandSignature);
  if (IfMagickTrue(cli_wand->wand.debug))
    (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",cli_wand->wand.name);

  // FUTURE: '-regard_warning' should make this more sensitive.
  // Note pipelined options may like more control over this level

  status = IsMagickTrue(cli_wand->wand.exception->severity > ErrorException);

  if ( IfMagickFalse(status) || IfMagickTrue(all_exceptions) )
    CatchException(cli_wand->wand.exception); /* output and clear exceptions */

  return(status);
}
Beispiel #2
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   D e s t r o y W a n d C L I                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  DestroyMagickCLI() destorys everything in a CLI wand, including image_info
%  and any exceptions, if still present in the wand.
%
%  The format of the NewMagickWand method is:
%
%    MagickWand *DestroyMagickCLI()
%            Exception *exception)
%
*/
WandExport MagickCLI *DestroyMagickCLI(MagickCLI *cli_wand)
{
  Stack
    *node;

  assert(cli_wand != (MagickCLI *) NULL);
  assert(cli_wand->signature == WandSignature);
  assert(cli_wand->wand.signature == WandSignature);
  if (IfMagickTrue(cli_wand->wand.debug))
    (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",cli_wand->wand.name);

  /* Destroy CLI part of MagickCLI */
  if (cli_wand->draw_info != (DrawInfo *) NULL )
    cli_wand->draw_info=DestroyDrawInfo(cli_wand->draw_info);
  if (cli_wand->quantize_info != (QuantizeInfo *) NULL )
    cli_wand->quantize_info=DestroyQuantizeInfo(cli_wand->quantize_info);
  while(cli_wand->image_list_stack != (Stack *)NULL)
    {
      node=cli_wand->image_list_stack;
      cli_wand->image_list_stack=node->next;
      (void) DestroyImageList((Image *)node->data);
      (void) RelinquishMagickMemory(node);
    }
  while(cli_wand->image_info_stack != (Stack *)NULL)
    {
      node=cli_wand->image_info_stack;
      cli_wand->image_info_stack=node->next;
      (void) DestroyImageInfo((ImageInfo *)node->data);
      (void) RelinquishMagickMemory(node);
    }
  cli_wand->signature=(~WandSignature);

  /* Destroy Wand part MagickCLI */
  cli_wand->wand.images=DestroyImageList(cli_wand->wand.images);
  if (cli_wand->wand.image_info != (ImageInfo *) NULL )
    cli_wand->wand.image_info=DestroyImageInfo(cli_wand->wand.image_info);
  if (cli_wand->wand.exception != (ExceptionInfo *) NULL )
    cli_wand->wand.exception=DestroyExceptionInfo(cli_wand->wand.exception);
  RelinquishWandId(cli_wand->wand.id);
  cli_wand->wand.signature=(~WandSignature);

  return((MagickCLI *)NULL);
}
Beispiel #3
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));
}
Beispiel #4
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   A c q u i r e W a n d C L I                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  AcquireMagickCLI() creates a new CLI wand (an expanded form of Magick
%  Wand). The given image_info and exception is included as is if provided.
%
%  Use DestroyMagickCLI() to dispose of the CLI wand when it is no longer
%  needed.
%
%  The format of the NewMagickWand method is:
%
%      MagickCLI *AcquireMagickCLI(ImageInfo *image_info,
%           ExceptionInfo *exception)
%
*/
WandExport MagickCLI *AcquireMagickCLI(ImageInfo *image_info,
    ExceptionInfo *exception)
{
  MagickCLI
    *cli_wand;

  /* precaution - as per NewMagickWand() */
  {
     size_t depth = MAGICKCORE_QUANTUM_DEPTH;
     const char *quantum = GetMagickQuantumDepth(&depth);
     if (depth != MAGICKCORE_QUANTUM_DEPTH)
       ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum);
  }

  /* allocate memory for MgaickCLI */
  cli_wand=(MagickCLI *) AcquireMagickMemory(sizeof(*cli_wand));
  if (cli_wand == (MagickCLI *) NULL)
    {
      ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
        GetExceptionMessage(errno));
      return((MagickCLI *)NULL);
    }

  /* Initialize Wand Part of MagickCLI
     FUTURE: this is a repeat of code from NewMagickWand()
     However some parts may be given fro man external source!
  */
  cli_wand->wand.id=AcquireWandId();
  (void) FormatLocaleString(cli_wand->wand.name,MaxTextExtent,
           "%s-%.20g","MagickWandCLI", (double) cli_wand->wand.id);
  cli_wand->wand.images=NewImageList();
  if ( image_info == (ImageInfo *)NULL)
    cli_wand->wand.image_info=AcquireImageInfo();
  else
    cli_wand->wand.image_info=image_info;
  if ( exception == (ExceptionInfo *)NULL)
    cli_wand->wand.exception=AcquireExceptionInfo();
  else
    cli_wand->wand.exception=exception;
  cli_wand->wand.debug=IsEventLogging();
  cli_wand->wand.signature=WandSignature;

  /* Initialize CLI Part of MagickCLI */
  cli_wand->draw_info=CloneDrawInfo(cli_wand->wand.image_info,(DrawInfo *) NULL);
  cli_wand->quantize_info=AcquireQuantizeInfo(cli_wand->wand.image_info);
  cli_wand->process_flags=MagickCommandOptionFlags;  /* assume "magick" CLI */
  cli_wand->command=(const OptionInfo *)NULL;     /* no option at this time */
  cli_wand->image_list_stack=(Stack *)NULL;
  cli_wand->image_info_stack=(Stack *)NULL;

  /* default exception location...
     EG: sprintf(locaiton, filename, line, column);
  */
  cli_wand->location="from \"%s\"";   /* location format using arguments: */
                                      /*      filename, line, column */
  cli_wand->filename="unknown";       /* script filename, unknown source */
  cli_wand->line=0;                   /* line from script OR CLI argument */
  cli_wand->column=0;                 /* column from script */

  cli_wand->signature=WandSignature;
  if (IfMagickTrue(cli_wand->wand.debug))
    (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",cli_wand->wand.name);
  return(cli_wand);
}
Beispiel #5
0
static MagickBooleanType WritePCLImage(const ImageInfo *image_info,Image *image,
  ExceptionInfo *exception)
{
  char
    buffer[MaxTextExtent];

  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 == MagickSignature);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickSignature);
  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
  {
    if (IsRGBColorspace(image->colorspace) == MagickFalse)
      (void) TransformImageColorspace(image,sRGBColorspace,exception);
    /*
      Initialize the printer.
    */
    (void) WriteBlobString(image,"\033E");  /* printer reset */
    (void) WriteBlobString(image,"\033*r3F");  /* set presentation mode */
    (void) FormatLocaleString(buffer,MaxTextExtent,"\033*r%.20gs%.20gT",
      (double) image->columns,(double) image->rows);
    (void) WriteBlobString(image,buffer);
    (void) FormatLocaleString(buffer,MaxTextExtent,"\033*t%.20gR",(double)
      density);
    (void) WriteBlobString(image,buffer);
    (void) WriteBlobString(image,"\033&l0E");  /* top margin 0 */
    if (IsImageMonochrome(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,MaxTextExtent,
              "\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,MaxTextExtent,"\033*v%.20gI",
              (double) i);
            (void) WriteBlobString(image,buffer);
          }
        }
    option=GetImageOption(image_info,"pcl:fit-to-page");
    if (IfMagickTrue(IsStringTrue(option)))
      (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;
    switch (image->compression)
    {
      case NoCompression:
      {
        (void) FormatLocaleString(buffer,MaxTextExtent,"\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,MaxTextExtent,"\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,MaxTextExtent,"\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 (GetPixelIntensity(image,p) < ((MagickRealType) 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 (image->compression)
      {
        case NoCompression:
        {
          (void) FormatLocaleString(buffer,MaxTextExtent,"\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,MaxTextExtent,"\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,MaxTextExtent,"\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 (image->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);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   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[MaxTextExtent];

  const char
    *option;

  const DelegateInfo
    *delegate_info;

  const MagickInfo
    *magick_info;

  ExceptionInfo
    *sans_exception;

  ImageInfo
    *write_info;

  MagickBooleanType
    status,
    temporary;

  MagickStatusType
    thread_support;

  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 == MagickSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
      image_info->filename);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  assert(exception != (ExceptionInfo *) NULL);
  sans_exception=AcquireExceptionInfo();
  write_info=CloneImageInfo(image_info);
  (void) CopyMagickString(write_info->filename,image->filename,MaxTextExtent);
  if (*write_info->magick == '\0')
    (void) CopyMagickString(write_info->magick,image->magick,MaxTextExtent);
  (void) SetImageInfo(write_info,1,sans_exception);
  (void) CopyMagickString(filename,image->filename,MaxTextExtent);
  (void) CopyMagickString(image->filename,write_info->filename,MaxTextExtent);
  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))
          {
            size_t
              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 ((IfMagickTrue(IsStringTrue(option))) &&
      (write_info->page == (char *) NULL) &&
      (GetPreviousImageInList(image) == (Image *) NULL) &&
      (GetNextImageInList(image) == (Image *) NULL) &&
      (IfMagickFalse(IsTaintImage(image))) )
    {
      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,
            MaxTextExtent);
          status=InvokeDelegate(write_info,image,image->magick,
            write_info->magick,exception);
          write_info=DestroyImageInfo(write_info);
          (void) CopyMagickString(image->filename,filename,MaxTextExtent);
          return(status);
        }
    }
  status=MagickFalse;
  temporary=MagickFalse;
  if ((magick_info != (const MagickInfo *) NULL) &&
      (GetMagickSeekableStream(magick_info) != MagickFalse))
    {
      char
        filename[MaxTextExtent];

      (void) CopyMagickString(filename,image->filename,MaxTextExtent);
      status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
      (void) CopyMagickString(image->filename,filename,MaxTextExtent);
      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,
                MaxTextExtent);
              (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.
      */
      thread_support=GetMagickThreadSupport(magick_info);
      if ((thread_support & EncoderThreadSupport) == 0)
        LockSemaphoreInfo(magick_info->semaphore);
      status=GetImageEncoder(magick_info)(write_info,image,exception);
      if ((thread_support & EncoderThreadSupport) == 0)
        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,MaxTextExtent);
        }
      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,
                MaxTextExtent);
              magick_info=GetMagickInfo(write_info->magick,exception);
            }
          if ((magick_info == (const MagickInfo *) NULL) ||
              (GetImageEncoder(magick_info) == (EncodeImageHandler *) NULL))
            {
              char
                extension[MaxTextExtent];

              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,MaxTextExtent);
            }
          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.
              */
              thread_support=GetMagickThreadSupport(magick_info);
              if ((thread_support & EncoderThreadSupport) == 0)
                LockSemaphoreInfo(magick_info->semaphore);
              status=GetImageEncoder(magick_info)(write_info,image,exception);
              if ((thread_support & EncoderThreadSupport) == 0)
                UnlockSemaphoreInfo(magick_info->semaphore);
            }
        }
    }
  if (GetBlobError(image) != MagickFalse)
    ThrowFileException(exception,FileOpenError,
      "AnErrorHasOccurredWritingToFile",image->filename);
  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,
        MaxTextExtent);
    }
  if ((LocaleCompare(write_info->magick,"info") != 0) &&
      (write_info->verbose != MagickFalse))
    (void) IdentifyImage(image,stdout,MagickFalse,exception);
  write_info=DestroyImageInfo(write_info);
  return(status);
}
Beispiel #7
0
WandExport MagickBooleanType MagickImageCommand(ImageInfo *image_info,int argc,
  char **argv,char **metadata,ExceptionInfo *exception)
{
  MagickCLI
    *cli_wand;

  size_t
    len;

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

  /* For specific OS command line requirements */
  ReadCommandlLine(argc,&argv);

  /* Initialize special "CLI Wand" to hold images and settings (empty) */
  cli_wand=AcquireMagickCLI(image_info,exception);
  cli_wand->location="Initializing";
  cli_wand->filename=argv[0];
  cli_wand->line=1;

  if (IfMagickTrue(cli_wand->wand.debug))
    (void) CLILogEvent(cli_wand,CommandEvent,GetMagickModule(),
         "\"%s\"",argv[0]);


  GetPathComponent(argv[0],TailPath,cli_wand->wand.name);
  SetClientName(cli_wand->wand.name);
  ConcatenateMagickString(cli_wand->wand.name,"-CLI",MagickPathExtent);

  len=strlen(argv[0]);  /* precaution */

  /* "convert" command - give a "deprecated" warning" */
  if (len>=7 && LocaleCompare("convert",argv[0]+len-7) == 0) {
    cli_wand->process_flags = ConvertCommandOptionFlags;
    (void) FormatLocaleFile(stderr,"WARNING: %s\n",
         "The convert command is deprecated in IMv7, use \"magick\"\n");
  }

  /* Special Case:  If command name ends with "script" implied "-script" */
  if (len>=6 && LocaleCompare("script",argv[0]+len-6) == 0) {
    if (argc >= 2 && (  (*(argv[1]) != '-') || (strlen(argv[1]) == 1) )) {
      GetPathComponent(argv[1],TailPath,cli_wand->wand.name);
      ProcessScriptOptions(cli_wand,argv[1],argc,argv,2);
      goto Magick_Command_Cleanup;
    }
  }

  /* Special Case: Version Information and Abort */
  if (argc == 2) {
    if ((LocaleCompare("-version",argv[1]) == 0)   || /* GNU standard option */
        (LocaleCompare("--version",argv[1]) == 0) ) { /* just version */
      CLIOption(cli_wand, "-version");
      goto Magick_Command_Exit;
    }
    if ((LocaleCompare("-help",argv[1]) == 0)   || /* GNU standard option */
        (LocaleCompare("--help",argv[1]) == 0) ) { /* just a brief summary */
      if (IfMagickTrue(cli_wand->wand.debug))
        (void) CLILogEvent(cli_wand,CommandEvent,GetMagickModule(),
            "- Special Option \"%s\"", argv[1]);
      MagickUsage(MagickFalse);
      goto Magick_Command_Exit;
    }
    if (LocaleCompare("-usage",argv[1]) == 0) {   /* both version & usage */
      if (IfMagickTrue(cli_wand->wand.debug))
        (void) CLILogEvent(cli_wand,CommandEvent,GetMagickModule(),
            "- Special Option \"%s\"", argv[1]);
      CLIOption(cli_wand, "-version" );
      MagickUsage(MagickTrue);
      goto Magick_Command_Exit;
    }
  }

  /* not enough arguments -- including -help */
  if (argc < 3) {
    (void) FormatLocaleFile(stderr,
       "Error: Invalid argument or not enough arguments\n\n");
    MagickUsage(MagickFalse);
    goto Magick_Command_Exit;
  }

  /* Special "concatenate option (hidden) for delegate usage */
  if (LocaleCompare("-concatenate",argv[1]) == 0) {
    if (IfMagickTrue(cli_wand->wand.debug))
        (void) CLILogEvent(cli_wand,CommandEvent,GetMagickModule(),
            "- Special Option \"%s\"", argv[1]);
    ConcatenateImages(argc,argv,exception);
    goto Magick_Command_Exit;
  }

  /* List Information and Abort */
  if (argc == 3 && LocaleCompare("-list",argv[1]) == 0) {
    CLIOption(cli_wand, argv[1], argv[2]);
    goto Magick_Command_Exit;
  }

  /* ------------- */
  /* The Main Call */

  if (LocaleCompare("-script",argv[1]) == 0) {
    /* Start processing directly from script, no pre-script options
       Replace wand command name with script name
       First argument in the argv array is the script name to read.
    */
    GetPathComponent(argv[2],TailPath,cli_wand->wand.name);
    ProcessScriptOptions(cli_wand,argv[2],argc,argv,3);
  }
  else {
    /* Normal Command Line, assumes output file as last option */
    ProcessCommandOptions(cli_wand,argc,argv,1);
  }
  /* ------------- */

Magick_Command_Cleanup:
  cli_wand->location="Cleanup";
  cli_wand->filename=argv[0];
  if (IfMagickTrue(cli_wand->wand.debug))
    (void) CLILogEvent(cli_wand,CommandEvent,GetMagickModule(),
         "\"%s\"",argv[0]);

  /* recover original image_info and clean up stacks
     FUTURE: "-reset stacks" option  */
  while (cli_wand->image_list_stack != (Stack *) NULL)
    CLIOption(cli_wand,")");
  while (cli_wand->image_info_stack != (Stack *) NULL)
    CLIOption(cli_wand,"}");

  /* assert we have recovered the original structures */
  assert(cli_wand->wand.image_info == image_info);
  assert(cli_wand->wand.exception == exception);

  /* Handle metadata for ImageMagickObject COM object for Windows VBS */
  if (metadata != (char **) NULL) {
    const char
      *format;

    char
      *text;

    format="%w,%h,%m";   // Get this from image_info Option splaytree

    text=InterpretImageProperties(image_info,cli_wand->wand.images,format,
      exception);
    if (text == (char *) NULL)
      ThrowMagickException(exception,GetMagickModule(),ResourceLimitError,
        "MemoryAllocationFailed","`%s'", GetExceptionMessage(errno));
    else {
      (void) ConcatenateString(&(*metadata),text);
      text=DestroyString(text);
    }
  }

Magick_Command_Exit:
  cli_wand->location="Exiting";
  cli_wand->filename=argv[0];
  if (IfMagickTrue(cli_wand->wand.debug))
    (void) CLILogEvent(cli_wand,CommandEvent,GetMagickModule(),
         "\"%s\"",argv[0]);

  /* Destroy the special CLI Wand */
  cli_wand->wand.image_info = (ImageInfo *) NULL; /* not these */
  cli_wand->wand.exception = (ExceptionInfo *) NULL;
  cli_wand=DestroyMagickCLI(cli_wand);

  return(IsMagickTrue(exception->severity < ErrorException));
}
Beispiel #8
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+  P r o c e s s C o m m a n d O p t i o n s                                  %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  ProcessCommandOptions() reads and processes arguments in the given
%  command line argument array. The 'index' defines where in the array we
%  should begin processing
%
%  The 'process_flags' can be used to control and limit option processing.
%  For example, to only process one option, or how unknown and special options
%  are to be handled, and if the last argument in array is to be regarded as a
%  final image write argument (filename or special coder).
%
%  The format of the ProcessCommandOptions method is:
%
%    int ProcessCommandOptions(MagickCLI *cli_wand,int argc,char **argv,
%      int index)
%
%  A description of each parameter follows:
%
%    o cli_wand: the main CLI Wand to use.
%
%    o argc: the number of elements in the argument vector.
%
%    o argv: A text array containing the command line arguments.
%
%    o process_flags: What type of arguments will be processed, ignored
%                     or return errors.
%
%    o index: index in the argv array to start processing from
%
% The function returns the index ot the next option to be processed. This
% is really only releven if process_flags contains a ProcessOneOptionOnly
% flag.
%
*/
WandExport int ProcessCommandOptions(MagickCLI *cli_wand,int argc,char **argv,
  int index)
{
  const char
    *option,
    *arg1,
    *arg2;

  int
    i,
    end,
    count;

  CommandOptionFlags
    option_type;

  assert(argc>=index); /* you may have no arguments left! */
  assert(argv != (char **) NULL);
  assert(argv[index] != (char *) NULL);
  assert(argv[argc-1] != (char *) NULL);
  assert(cli_wand != (MagickCLI *) NULL);
  assert(cli_wand->signature == WandSignature);

  /* define the error location string for use in exceptions
     order of localtion format escapes: filename, line, column */
  cli_wand->location="at %s arg %u";
  cli_wand->filename="CLI";
  cli_wand->line=index;  /* note first argument we will process */

  if (IfMagickTrue(cli_wand->wand.debug))
    (void) CLILogEvent(cli_wand,CommandEvent,GetMagickModule(),
         "- Starting (\"%s\")", argv[index]);

  end = argc;
  if ( (cli_wand->process_flags & ProcessImplictWrite) != 0 )
    end--; /* the last arument is an implied write, do not process directly */

  for (i=index; i < end; i += count +1) {
    /* Finished processing one option? */
    if ( (cli_wand->process_flags & ProcessOneOptionOnly) != 0 && i != index )
      return(i);

    do { /* use break to loop to exception handler and loop */

      option=argv[i];
      cli_wand->line=i;  /* note the argument for this option */

      /* get option, its argument count, and option type */
      cli_wand->command = GetCommandOptionInfo(argv[i]);
      count=cli_wand->command->type;
      option_type=(CommandOptionFlags) cli_wand->command->flags;
#if 0
      (void) FormatLocaleFile(stderr, "CLI %d: \"%s\" matched \"%s\"\n",
            i, argv[i], cli_wand->command->mnemonic );
#endif

      if ( option_type == UndefinedOptionFlag ||
           (option_type & NonMagickOptionFlag) != 0 ) {
#if MagickCommandDebug >= 3
        (void) FormatLocaleFile(stderr, "CLI arg %d Non-Option: \"%s\"\n",
             i, option);
#endif
        if ( IfMagickFalse(IsCommandOption(option)) ) {
          if ( (cli_wand->process_flags & ProcessImplictRead) != 0 ) {
            /* non-option -- treat as a image read */
            cli_wand->command=(const OptionInfo *) NULL;
            CLIOption(cli_wand,"-read",option);
            break; /* next option */
          }
        }
        CLIWandException(OptionFatalError,"UnrecognizedOption",option);
        break; /* next option */
      }

      if ( ((option_type & SpecialOptionFlag) != 0 ) &&
           ((cli_wand->process_flags & ProcessScriptOption) != 0) &&
           (LocaleCompare(option,"-script") == 0) ) {
        /* Call Script from CLI, with a filename as a zeroth argument.
           NOTE: -script may need to use the 'implict write filename' argument
           so it must be handled specially to prevent a 'missing argument' error.
        */
        if ( (i+count) >= argc )
          CLIWandException(OptionFatalError,"MissingArgument",option);
        ProcessScriptOptions(cli_wand,argv[i+1],argc,argv,i+count);
        return(argc);  /* Script does not return to CLI -- Yet */
                       /* FUTURE: when it does, their may be no write arg! */
      }

      if ((i+count) >= end ) {
        CLIWandException(OptionFatalError,"MissingArgument",option);
        if ( CLICatchException(cli_wand, MagickFalse) != MagickFalse )
          return(end);
        break; /* next option - not that their is any! */
      }

      arg1 = ( count >= 1 ) ? argv[i+1] : (char *) NULL;
      arg2 = ( count >= 2 ) ? argv[i+2] : (char *) NULL;

      /*
        Process Known Options
      */
#if MagickCommandDebug >= 3
      (void) FormatLocaleFile(stderr,
        "CLI arg %u Option: \"%s\"  Count: %d  Flags: %04x  Args: \"%s\" \"%s\"\n",
            i,option,count,option_type,arg1,arg2);
#endif
      /* ignore 'genesis options' in command line args */
      if ( (option_type & GenesisOptionFlag) != 0 )
        break; /* next option */

      /* Handle any special options for CLI (-script handled above) */
      if ( (option_type & SpecialOptionFlag) != 0 ) {
        if ( (cli_wand->process_flags & ProcessExitOption) != 0
             && LocaleCompare(option,"-exit") == 0 )
          return(i+count);
        break; /* next option */
      }

      /* Process standard image option */
      CLIOption(cli_wand, option, arg1, arg2);

DisableMSCWarning(4127)
    } while (0); /* break block to next option */
RestoreMSCWarning

#if MagickCommandDebug >= 5
    (void) FormatLocaleFile(stderr, "CLI-post Image Count = %ld\n",
         (long) GetImageListLength(cli_wand->wand.images) );
#endif
    if ( CLICatchException(cli_wand, MagickFalse) != MagickFalse )
      return(i+count);
  }
  assert(i==end);

  if ( (cli_wand->process_flags & ProcessImplictWrite) == 0 )
    return(end); /* no implied write -- just return to caller */

  assert(end==argc-1); /* end should not include last argument */

  /*
     Implicit Write of images to final CLI argument
  */
  option=argv[i];
  cli_wand->line=i;

  /* check that stacks are empty - or cause exception */
  if (cli_wand->image_list_stack != (Stack *) NULL)
    CLIWandException(OptionError,"UnbalancedParenthesis", "(end of cli)");
  else if (cli_wand->image_info_stack != (Stack *) NULL)
    CLIWandException(OptionError,"UnbalancedBraces", "(end of cli)");
  if ( CLICatchException(cli_wand, MagickFalse) != MagickFalse )
    return(argc);

#if MagickCommandDebug >= 3
  (void) FormatLocaleFile(stderr,"CLI arg %d Write File: \"%s\"\n",i,option);
#endif

  /* Valid 'do no write' replacement option (instead of "null:") */
  if (LocaleCompare(option,"-exit") == 0 )
    return(argc);  /* just exit, no image write */

  /* If filename looks like an option,
     Or the common 'end of line' error of a single space.
     -- produce an error */
  if (IfMagickTrue(IsCommandOption(option)) ||
      (option[0] == ' ' && option[1] == '\0') ) {
    CLIWandException(OptionError,"MissingOutputFilename",option);
    return(argc);
  }

  cli_wand->command=(const OptionInfo *) NULL;
  CLIOption(cli_wand,"-write",option);
  return(argc);
}
Beispiel #9
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   P r o c e s s S c r i p t O p t i o n s                                   %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  ProcessScriptOptions() reads options and processes options as they are
%  found in the given file, or pipeline.  The filename to open and read
%  options is given as the 'index' argument of the argument array given.
%
%  Other arguments following index may be read by special script options
%  as settings (strings), images, or as operations to be processed in various
%  ways.   How they are treated is up to the script being processed.
%
%  Note that a script not 'return' to the command line processing, nor can
%  they call (and return from) other scripts. At least not at this time.
%
%  There are no 'ProcessOptionFlags' control flags at this time.
%
%  The format of the ProcessScriptOptions method is:
%
%    void ProcessScriptOptions(MagickCLI *cli_wand,const char *filename,
%       int argc,char **argv,int index)
%
%  A description of each parameter follows:
%
%    o cli_wand: the main CLI Wand to use.
%
%    o filename: the filename of script to process
%
%    o argc: the number of elements in the argument vector. (optional)
%
%    o argv: A text array containing the command line arguments. (optional)
%
%    o index: offset of next argment in argv (script arguments) (optional)
%
*/
WandExport void ProcessScriptOptions(MagickCLI *cli_wand,const char *filename,
  int argc,char **argv,int index)
{
  ScriptTokenInfo
    *token_info;

  CommandOptionFlags
    option_type;

  int
    count;

  char
    *option,
    *arg1,
    *arg2;

  assert(filename != (char *) NULL ); /* at least one argument - script name */
  assert(cli_wand != (MagickCLI *) NULL);
  assert(cli_wand->signature == WandSignature);
  if (IfMagickTrue(cli_wand->wand.debug))
    (void) LogMagickEvent(CommandEvent,GetMagickModule(),
         "Processing script \"%s\"", filename);

  /* open file script or stream, and set up tokenizer */
  token_info = AcquireScriptTokenInfo(filename);
  if (token_info == (ScriptTokenInfo *) NULL) {
    CLIWandExceptionFile(OptionFatalError,"UnableToOpenScript",filename);
    return;
  }

  /* define the error location string for use in exceptions
     order of localtion format escapes: filename, line, column */
  cli_wand->location="in \"%s\" at line %u,column %u";
  if ( LocaleCompare("-", filename) == 0 )
    cli_wand->filename="stdin";
  else
    cli_wand->filename=filename;

  /* Process Options from Script */
  option = arg1 = arg2 = (char*) NULL;
DisableMSCWarning(4127)
  while (1) {
RestoreMSCWarning

    { MagickBooleanType status = GetScriptToken(token_info);
      cli_wand->line=token_info->token_line;
      cli_wand->column=token_info->token_column;
      if (status == MagickFalse)
        break; /* error or end of options */
    }

    do { /* use break to loop to exception handler and loop */

      /* save option details */
      CloneString(&option,token_info->token);

      /* get option, its argument count, and option type */
      cli_wand->command = GetCommandOptionInfo(option);
      count=cli_wand->command->type;
      option_type=(CommandOptionFlags) cli_wand->command->flags;
#if 0
      (void) FormatLocaleFile(stderr, "Script: %u,%u: \"%s\" matched \"%s\"\n",
          cli_wand->line, cli_wand->line, option, cli_wand->command->mnemonic );
#endif

      /* handle a undefined option - image read - always for "magick-script" */
      if ( option_type == UndefinedOptionFlag ||
           (option_type & NonMagickOptionFlag) != 0 ) {
#if MagickCommandDebug >= 3
        (void) FormatLocaleFile(stderr, "Script %u,%u Non-Option: \"%s\"\n",
                    cli_wand->line, cli_wand->line, option);
#endif
        if ( IfMagickFalse(IsCommandOption(option))) {
          /* non-option -- treat as a image read */
          cli_wand->command=(const OptionInfo *) NULL;
          CLIOption(cli_wand,"-read",option);
          break; /* next option */
        }
        CLIWandException(OptionFatalError,"UnrecognizedOption",option);
        break; /* next option */
      }

      if ( count >= 1 ) {
        if( IfMagickFalse(GetScriptToken(token_info)) )
          CLIWandException(OptionFatalError,"MissingArgument",option);
        CloneString(&arg1,token_info->token);
      }
      else
        CloneString(&arg1,(char *) NULL);

      if ( count >= 2 ) {
        if( IfMagickFalse(GetScriptToken(token_info)) )
          CLIWandExceptionBreak(OptionFatalError,"MissingArgument",option);
        CloneString(&arg2,token_info->token);
      }
      else
        CloneString(&arg2,(char *) NULL);

      /*
        Process Options
      */
#if MagickCommandDebug >= 3
      (void) FormatLocaleFile(stderr,
        "Script %u,%u Option: \"%s\"  Count: %d  Flags: %04x  Args: \"%s\" \"%s\"\n",
            cli_wand->line,cli_wand->line,option,count,option_type,arg1,arg2);
#endif
      /* Hard Deprecated Options, no code to execute - error */
      if ( (option_type & DeprecateOptionFlag) != 0 ) {
        CLIWandException(OptionError,"DeprecatedOptionNoCode",option);
        break; /* next option */
      }

      /* MagickCommandGenesis() options have no place in a magick script */
      if ( (option_type & GenesisOptionFlag) != 0 ) {
        CLIWandException(OptionError,"InvalidUseOfOption",option);
        break; /* next option */
      }

      /* handle any special 'script' options */
      if ( (option_type & SpecialOptionFlag) != 0 ) {
        if ( LocaleCompare(option,"-exit") == 0 ) {
          goto loop_exit; /* break out of loop - return from script */
        }
        if ( LocaleCompare(option,"-script") == 0 ) {
          /* FUTURE: call new script from this script - error for now */
          CLIWandException(OptionError,"InvalidUseOfOption",option);
          break; /* next option */
        }
        /* FUTURE: handle special script-argument options here */
        /* handle any other special operators now */
        CLIWandException(OptionError,"InvalidUseOfOption",option);
        break; /* next option */
      }

      /* Process non-specific Option */
      CLIOption(cli_wand, option, arg1, arg2);
      (void) fflush(stdout);
      (void) fflush(stderr);

DisableMSCWarning(4127)
    } while (0); /* break block to next option */
RestoreMSCWarning

#if MagickCommandDebug >= 5
    fprintf(stderr, "Script Image Count = %ld\n",
         GetImageListLength(cli_wand->wand.images) );
#endif
    if ( IfMagickTrue(CLICatchException(cli_wand, MagickFalse)) )
      break;  /* exit loop */
  }

  /*
     Loop exit - check for some tokenization error
  */
loop_exit:
#if MagickCommandDebug >= 3
  (void) FormatLocaleFile(stderr, "Script End: %d\n", token_info->status);
#endif
  switch( token_info->status ) {
    case TokenStatusOK:
    case TokenStatusEOF:
      if (cli_wand->image_list_stack != (Stack *) NULL)
        CLIWandException(OptionError,"UnbalancedParenthesis", "(eof)");
      else if (cli_wand->image_info_stack != (Stack *) NULL)
        CLIWandException(OptionError,"UnbalancedBraces", "(eof)");
      break;
    case TokenStatusBadQuotes:
      /* Ensure last token has a sane length for error report */
      if( strlen(token_info->token) > INITAL_TOKEN_LENGTH-1 ) {
        token_info->token[INITAL_TOKEN_LENGTH-4] = '.';
        token_info->token[INITAL_TOKEN_LENGTH-3] = '.';
        token_info->token[INITAL_TOKEN_LENGTH-2] = '.';
        token_info->token[INITAL_TOKEN_LENGTH-1] = '\0';
      }
      CLIWandException(OptionFatalError,"ScriptUnbalancedQuotes",
           token_info->token);
      break;
    case TokenStatusMemoryFailed:
      CLIWandException(OptionFatalError,"ScriptTokenMemoryFailed","");
      break;
    case TokenStatusBinary:
      CLIWandException(OptionFatalError,"ScriptIsBinary","");
      break;
  }
  (void) fflush(stdout);
  (void) fflush(stderr);
  if (IfMagickTrue(cli_wand->wand.debug))
    (void) LogMagickEvent(CommandEvent,GetMagickModule(),
         "Script End \"%s\"", filename);

  /* Clean up */
  token_info = DestroyScriptTokenInfo(token_info);

  CloneString(&option,(char *) NULL);
  CloneString(&arg1,(char *) NULL);
  CloneString(&arg2,(char *) NULL);

  return;
}