granicus.if.org Git - imagemagick/blob - coders/ps2.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                            PPPP   SSSSS  22222                              %
   7 %                            P   P  SS        22                              %
   8 %                            PPPP    SSS    222                               %
   9 %                            P         SS  22                                 %
  10 %                            P      SSSSS  22222                              %
  11 %                                                                             %
  12 %                                                                             %
  13 %                      Write Postscript Level II Format                       %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                   Cristy                                    %
  17 %                                 July 1992                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2015 ImageMagick Studio LLC, a non-profit organization      %
  21 %  dedicated to making software imaging solutions freely available.           %
  22 %                                                                             %
  23 %  You may not use this file except in compliance with the License.  You may  %
  24 %  obtain a copy of the License at                                            %
  25 %                                                                             %
  26 %    http://www.imagemagick.org/script/license.php                            %
  27 %                                                                             %
  28 %  Unless required by applicable law or agreed to in writing, software        %
  29 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  30 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  31 %  See the License for the specific language governing permissions and        %
  32 %  limitations under the License.                                             %
  33 %                                                                             %
  34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 %
  36 %
  37 */
  38 \f
  39 /*
  40   Include declarations.
  41 */
  42 #include "MagickCore/studio.h"
  43 #include "MagickCore/attribute.h"
  44 #include "MagickCore/blob.h"
  45 #include "MagickCore/blob-private.h"
  46 #include "MagickCore/cache.h"
  47 #include "MagickCore/color.h"
  48 #include "MagickCore/color-private.h"
  49 #include "MagickCore/compress.h"
  50 #include "MagickCore/constitute.h"
  51 #include "MagickCore/draw.h"
  52 #include "MagickCore/exception.h"
  53 #include "MagickCore/exception-private.h"
  54 #include "MagickCore/geometry.h"
  55 #include "MagickCore/image.h"
  56 #include "MagickCore/image-private.h"
  57 #include "MagickCore/list.h"
  58 #include "MagickCore/magick.h"
  59 #include "MagickCore/memory_.h"
  60 #include "MagickCore/monitor.h"
  61 #include "MagickCore/monitor-private.h"
  62 #include "MagickCore/monitor-private.h"
  63 #include "MagickCore/option.h"
  64 #include "MagickCore/pixel-accessor.h"
  65 #include "MagickCore/property.h"
  66 #include "MagickCore/quantum-private.h"
  67 #include "MagickCore/resource_.h"
  68 #include "MagickCore/static.h"
  69 #include "MagickCore/string_.h"
  70 #include "MagickCore/module.h"
  71 #include "MagickCore/utility.h"
  72 \f
  73 /*
  74   Define declarations.
  75 */
  76 #if defined(MAGICKCORE_TIFF_DELEGATE)
  77 #define CCITTParam  "-1"
  78 #else
  79 #define CCITTParam  "0"
  80 #endif
  81 \f
  82 /*
  83   Forward declarations.
  84 */
  85 static MagickBooleanType
  86   WritePS2Image(const ImageInfo *,Image *,ExceptionInfo *);
  87 \f
  88 /*
  89 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  90 %                                                                             %
  91 %                                                                             %
  92 %                                                                             %
  93 %   R e g i s t e r P S 2 I m a g e                                           %
  94 %                                                                             %
  95 %                                                                             %
  96 %                                                                             %
  97 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  98 %
  99 %  RegisterPS2Image() adds properties for the PS2 image format to
 100 %  the list of supported formats.  The properties include the image format
 101 %  tag, a method to read and/or write the format, whether the format
 102 %  supports the saving of more than one frame to the same file or blob,
 103 %  whether the format supports native in-memory I/O, and a brief
 104 %  description of the format.
 105 %
 106 %  The format of the RegisterPS2Image method is:
 107 %
 108 %      size_t RegisterPS2Image(void)
 109 %
 110 */
 111 ModuleExport size_t RegisterPS2Image(void)
 112 {
 113   MagickInfo
 114     *entry;
 115
 116   entry=SetMagickInfo("EPS2");
 117   entry->encoder=(EncodeImageHandler *) WritePS2Image;
 118   entry->adjoin=MagickFalse;
 119   entry->seekable_stream=MagickTrue;
 120   entry->description=ConstantString("Level II Encapsulated PostScript");
 121   entry->mime_type=ConstantString("application/postscript");
 122   entry->module=ConstantString("PS2");
 123   (void) RegisterMagickInfo(entry);
 124   entry=SetMagickInfo("PS2");
 125   entry->encoder=(EncodeImageHandler *) WritePS2Image;
 126   entry->seekable_stream=MagickTrue;
 127   entry->description=ConstantString("Level II PostScript");
 128   entry->mime_type=ConstantString("application/postscript");
 129   entry->module=ConstantString("PS2");
 130   (void) RegisterMagickInfo(entry);
 131   return(MagickImageCoderSignature);
 132 }
 133 \f
 134 /*
 135 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 136 %                                                                             %
 137 %                                                                             %
 138 %                                                                             %
 139 %   U n r e g i s t e r P S 2 I m a g e                                       %
 140 %                                                                             %
 141 %                                                                             %
 142 %                                                                             %
 143 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 144 %
 145 %  UnregisterPS2Image() removes format registrations made by the
 146 %  PS2 module from the list of supported formats.
 147 %
 148 %  The format of the UnregisterPS2Image method is:
 149 %
 150 %      UnregisterPS2Image(void)
 151 %
 152 */
 153 ModuleExport void UnregisterPS2Image(void)
 154 {
 155   (void) UnregisterMagickInfo("EPS2");
 156   (void) UnregisterMagickInfo("PS2");
 157 }
 158 \f
 159 /*
 160 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 161 %                                                                             %
 162 %                                                                             %
 163 %                                                                             %
 164 %   W r i t e P S 2 I m a g e                                                 %
 165 %                                                                             %
 166 %                                                                             %
 167 %                                                                             %
 168 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 169 %
 170 %  WritePS2Image translates an image to encapsulated Postscript
 171 %  Level II for printing.  If the supplied geometry is null, the image is
 172 %  centered on the Postscript page.  Otherwise, the image is positioned as
 173 %  specified by the geometry.
 174 %
 175 %  The format of the WritePS2Image method is:
 176 %
 177 %      MagickBooleanType WritePS2Image(const ImageInfo *image_info,
 178 %        Image *image,ExceptionInfo *exception)
 179 %
 180 %  A description of each parameter follows:
 181 %
 182 %    o image_info: the image info.
 183 %
 184 %    o image: the image.
 185 %
 186 %    o exception: return any errors or warnings in this structure.
 187 %
 188 */
 189
 190 static MagickBooleanType Huffman2DEncodeImage(const ImageInfo *image_info,
 191   Image *image,Image *inject_image,ExceptionInfo *exception)
 192 {
 193   Image
 194     *group4_image;
 195
 196   ImageInfo
 197     *write_info;
 198
 199   MagickBooleanType
 200     status;
 201
 202   size_t
 203     length;
 204
 205   unsigned char
 206     *group4;
 207
 208   status=MagickTrue;
 209   write_info=CloneImageInfo(image_info);
 210   (void) CopyMagickString(write_info->filename,"GROUP4:",MaxTextExtent);
 211   (void) CopyMagickString(write_info->magick,"GROUP4",MaxTextExtent);
 212   group4_image=CloneImage(inject_image,0,0,MagickTrue,exception);
 213   if (group4_image == (Image *) NULL)
 214     return(MagickFalse);
 215   group4=(unsigned char *) ImageToBlob(write_info,group4_image,&length,
 216     exception);
 217   group4_image=DestroyImage(group4_image);
 218   if (group4 == (unsigned char *) NULL)
 219     return(MagickFalse);
 220   write_info=DestroyImageInfo(write_info);
 221   if (WriteBlob(image,length,group4) != (ssize_t) length)
 222     status=MagickFalse;
 223   group4=(unsigned char *) RelinquishMagickMemory(group4);
 224   return(status);
 225 }
 226
 227 static MagickBooleanType WritePS2Image(const ImageInfo *image_info,Image *image,
 228   ExceptionInfo *exception)
 229 {
 230   static const char
 231     *PostscriptProlog[]=
 232     {
 233       "%%%%BeginProlog",
 234       "%%",
 235       "%% Display a color image.  The image is displayed in color on",
 236       "%% Postscript viewers or printers that support color, otherwise",
 237       "%% it is displayed as grayscale.",
 238       "%%",
 239       "/DirectClassImage",
 240       "{",
 241       "  %%",
 242       "  %% Display a DirectClass image.",
 243       "  %%",
 244       "  colorspace 0 eq",
 245       "  {",
 246       "    /DeviceRGB setcolorspace",
 247       "    <<",
 248       "      /ImageType 1",
 249       "      /Width columns",
 250       "      /Height rows",
 251       "      /BitsPerComponent 8",
 252       "      /Decode [0 1 0 1 0 1]",
 253       "      /ImageMatrix [columns 0 0 rows neg 0 rows]",
 254       "      compression 0 gt",
 255       "      { /DataSource pixel_stream %s }",
 256       "      { /DataSource pixel_stream %s } ifelse",
 257       "    >> image",
 258       "  }",
 259       "  {",
 260       "    /DeviceCMYK setcolorspace",
 261       "    <<",
 262       "      /ImageType 1",
 263       "      /Width columns",
 264       "      /Height rows",
 265       "      /BitsPerComponent 8",
 266       "      /Decode [1 0 1 0 1 0 1 0]",
 267       "      /ImageMatrix [columns 0 0 rows neg 0 rows]",
 268       "      compression 0 gt",
 269       "      { /DataSource pixel_stream %s }",
 270       "      { /DataSource pixel_stream %s } ifelse",
 271       "    >> image",
 272       "  } ifelse",
 273       "} bind def",
 274       "",
 275       "/PseudoClassImage",
 276       "{",
 277       "  %%",
 278       "  %% Display a PseudoClass image.",
 279       "  %%",
 280       "  %% Parameters:",
 281       "  %%   colors: number of colors in the colormap.",
 282       "  %%",
 283       "  currentfile buffer readline pop",
 284       "  token pop /colors exch def pop",
 285       "  colors 0 eq",
 286       "  {",
 287       "    %%",
 288       "    %% Image is grayscale.",
 289       "    %%",
 290       "    currentfile buffer readline pop",
 291       "    token pop /bits exch def pop",
 292       "    /DeviceGray setcolorspace",
 293       "    <<",
 294       "      /ImageType 1",
 295       "      /Width columns",
 296       "      /Height rows",
 297       "      /BitsPerComponent bits",
 298       "      /Decode [0 1]",
 299       "      /ImageMatrix [columns 0 0 rows neg 0 rows]",
 300       "      compression 0 gt",
 301       "      { /DataSource pixel_stream %s }",
 302       "      {",
 303       "        /DataSource pixel_stream %s",
 304       "        <<",
 305       "           /K "CCITTParam,
 306       "           /Columns columns",
 307       "           /Rows rows",
 308       "        >> /CCITTFaxDecode filter",
 309       "      } ifelse",
 310       "    >> image",
 311       "  }",
 312       "  {",
 313       "    %%",
 314       "    %% Parameters:",
 315       "    %%   colormap: red, green, blue color packets.",
 316       "    %%",
 317       "    /colormap colors 3 mul string def",
 318       "    currentfile colormap readhexstring pop pop",
 319       "    currentfile buffer readline pop",
 320       "    [ /Indexed /DeviceRGB colors 1 sub colormap ] setcolorspace",
 321       "    <<",
 322       "      /ImageType 1",
 323       "      /Width columns",
 324       "      /Height rows",
 325       "      /BitsPerComponent 8",
 326       "      /Decode [0 255]",
 327       "      /ImageMatrix [columns 0 0 rows neg 0 rows]",
 328       "      compression 0 gt",
 329       "      { /DataSource pixel_stream %s }",
 330       "      { /DataSource pixel_stream %s } ifelse",
 331       "    >> image",
 332       "  } ifelse",
 333       "} bind def",
 334       "",
 335       "/DisplayImage",
 336       "{",
 337       "  %%",
 338       "  %% Display a DirectClass or PseudoClass image.",
 339       "  %%",
 340       "  %% Parameters:",
 341       "  %%   x & y translation.",
 342       "  %%   x & y scale.",
 343       "  %%   label pointsize.",
 344       "  %%   image label.",
 345       "  %%   image columns & rows.",
 346       "  %%   class: 0-DirectClass or 1-PseudoClass.",
 347       "  %%   colorspace: 0-RGB or 1-CMYK.",
 348       "  %%   compression: 0-RLECompression or 1-NoCompression.",
 349       "  %%   hex color packets.",
 350       "  %%",
 351       "  gsave",
 352       "  /buffer 512 string def",
 353       "  /pixel_stream currentfile def",
 354       "",
 355       "  currentfile buffer readline pop",
 356       "  token pop /x exch def",
 357       "  token pop /y exch def pop",
 358       "  x y translate",
 359       "  currentfile buffer readline pop",
 360       "  token pop /x exch def",
 361       "  token pop /y exch def pop",
 362       "  currentfile buffer readline pop",
 363       "  token pop /pointsize exch def pop",
 364       "  /Helvetica findfont pointsize scalefont setfont",
 365       (char *) NULL
 366     },
 367     *PostscriptEpilog[]=
 368     {
 369       "  x y scale",
 370       "  currentfile buffer readline pop",
 371       "  token pop /columns exch def",
 372       "  token pop /rows exch def pop",
 373       "  currentfile buffer readline pop",
 374       "  token pop /class exch def pop",
 375       "  currentfile buffer readline pop",
 376       "  token pop /colorspace exch def pop",
 377       "  currentfile buffer readline pop",
 378       "  token pop /compression exch def pop",
 379       "  class 0 gt { PseudoClassImage } { DirectClassImage } ifelse",
 380       "  grestore",
 381       (char *) NULL
 382     };
 383
 384   char
 385     buffer[MaxTextExtent],
 386     date[MaxTextExtent],
 387     page_geometry[MaxTextExtent],
 388     **labels;
 389
 390   CompressionType
 391     compression;
 392
 393   const char
 394     **q,
 395     *value;
 396
 397   double
 398     pointsize;
 399
 400   GeometryInfo
 401     geometry_info;
 402
 403   MagickOffsetType
 404     scene,
 405     start,
 406     stop;
 407
 408   MagickBooleanType
 409     progress,
 410     status;
 411
 412   MagickOffsetType
 413     offset;
 414
 415   MagickSizeType
 416     number_pixels;
 417
 418   MagickStatusType
 419     flags;
 420
 421   PointInfo
 422     delta,
 423     resolution,
 424     scale;
 425
 426   RectangleInfo
 427     geometry,
 428     media_info,
 429     page_info;
 430
 431   register const Quantum
 432     *p;
 433
 434   register ssize_t
 435     x;
 436
 437   register ssize_t
 438     i;
 439
 440   SegmentInfo
 441     bounds;
 442
 443   size_t
 444     length,
 445     page,
 446     text_size;
 447
 448   ssize_t
 449     j,
 450     y;
 451
 452   time_t
 453     timer;
 454
 455   unsigned char
 456     *pixels;
 457
 458   /*
 459     Open output image file.
 460   */
 461   assert(image_info != (const ImageInfo *) NULL);
 462   assert(image_info->signature == MagickSignature);
 463   assert(image != (Image *) NULL);
 464   assert(image->signature == MagickSignature);
 465   if (image->debug != MagickFalse)
 466     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 467   assert(exception != (ExceptionInfo *) NULL);
 468   assert(exception->signature == MagickSignature);
 469   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
 470   if (status == MagickFalse)
 471     return(status);
 472   compression=image->compression;
 473   if (image_info->compression != UndefinedCompression)
 474     compression=image_info->compression;
 475   switch (compression)
 476   {
 477 #if !defined(MAGICKCORE_JPEG_DELEGATE)
 478     case JPEGCompression:
 479     {
 480       compression=RLECompression;
 481       (void) ThrowMagickException(exception,GetMagickModule(),
 482         MissingDelegateError,"DelegateLibrarySupportNotBuiltIn","`%s' (JPEG)",
 483         image->filename);
 484       break;
 485     }
 486 #endif
 487     default:
 488       break;
 489   }
 490   (void) ResetMagickMemory(&bounds,0,sizeof(bounds));
 491   page=1;
 492   scene=0;
 493   do
 494   {
 495     /*
 496       Scale relative to dots-per-inch.
 497     */
 498     delta.x=DefaultResolution;
 499     delta.y=DefaultResolution;
 500     resolution.x=image->resolution.x;
 501     resolution.y=image->resolution.y;
 502     if ((resolution.x == 0.0) || (resolution.y == 0.0))
 503       {
 504         flags=ParseGeometry(PSDensityGeometry,&geometry_info);
 505         resolution.x=geometry_info.rho;
 506         resolution.y=geometry_info.sigma;
 507         if ((flags & SigmaValue) == 0)
 508           resolution.y=resolution.x;
 509       }
 510     if (image_info->density != (char *) NULL)
 511       {
 512         flags=ParseGeometry(image_info->density,&geometry_info);
 513         resolution.x=geometry_info.rho;
 514         resolution.y=geometry_info.sigma;
 515         if ((flags & SigmaValue) == 0)
 516           resolution.y=resolution.x;
 517       }
 518     if (image->units == PixelsPerCentimeterResolution)
 519       {
 520         resolution.x=(size_t) (100.0*2.54*resolution.x+0.5)/100.0;
 521         resolution.y=(size_t) (100.0*2.54*resolution.y+0.5)/100.0;
 522       }
 523     SetGeometry(image,&geometry);
 524     (void) FormatLocaleString(page_geometry,MaxTextExtent,"%.20gx%.20g",
 525       (double) image->columns,(double) image->rows);
 526     if (image_info->page != (char *) NULL)
 527       (void) CopyMagickString(page_geometry,image_info->page,MaxTextExtent);
 528     else
 529       if ((image->page.width != 0) && (image->page.height != 0))
 530         (void) FormatLocaleString(page_geometry,MaxTextExtent,
 531           "%.20gx%.20g%+.20g%+.20g",(double) image->page.width,(double)
 532           image->page.height,(double) image->page.x,(double) image->page.y);
 533       else
 534         if ((image->gravity != UndefinedGravity) &&
 535             (LocaleCompare(image_info->magick,"PS") == 0))
 536           (void) CopyMagickString(page_geometry,PSPageGeometry,MaxTextExtent);
 537     (void) ConcatenateMagickString(page_geometry,">",MaxTextExtent);
 538     (void) ParseMetaGeometry(page_geometry,&geometry.x,&geometry.y,
 539       &geometry.width,&geometry.height);
 540     scale.x=(double) (geometry.width*delta.x)/resolution.x;
 541     geometry.width=(size_t) floor(scale.x+0.5);
 542     scale.y=(double) (geometry.height*delta.y)/resolution.y;
 543     geometry.height=(size_t) floor(scale.y+0.5);
 544     (void) ParseAbsoluteGeometry(page_geometry,&media_info);
 545     (void) ParseGravityGeometry(image,page_geometry,&page_info,exception);
 546     if (image->gravity != UndefinedGravity)
 547       {
 548         geometry.x=(-page_info.x);
 549         geometry.y=(ssize_t) (media_info.height+page_info.y-image->rows);
 550       }
 551     pointsize=12.0;
 552     if (image_info->pointsize != 0.0)
 553       pointsize=image_info->pointsize;
 554     text_size=0;
 555     value=GetImageProperty(image,"label",exception);
 556     if (value != (const char *) NULL)
 557       text_size=(size_t) (MultilineCensus(value)*pointsize+12);
 558     if (page == 1)
 559       {
 560         /*
 561           Output Postscript header.
 562         */
 563         if (LocaleCompare(image_info->magick,"PS2") == 0)
 564           (void) CopyMagickString(buffer,"%!PS-Adobe-3.0\n",MaxTextExtent);
 565         else
 566           (void) CopyMagickString(buffer,"%!PS-Adobe-3.0 EPSF-3.0\n",
 567             MaxTextExtent);
 568         (void) WriteBlobString(image,buffer);
 569         (void) WriteBlobString(image,"%%Creator: (ImageMagick)\n");
 570         (void) FormatLocaleString(buffer,MaxTextExtent,"%%%%Title: (%s)\n",
 571           image->filename);
 572         (void) WriteBlobString(image,buffer);
 573         timer=time((time_t *) NULL);
 574         (void) FormatMagickTime(timer,MaxTextExtent,date);
 575         (void) FormatLocaleString(buffer,MaxTextExtent,
 576           "%%%%CreationDate: (%s)\n",date);
 577         (void) WriteBlobString(image,buffer);
 578         bounds.x1=(double) geometry.x;
 579         bounds.y1=(double) geometry.y;
 580         bounds.x2=(double) geometry.x+geometry.width;
 581         bounds.y2=(double) geometry.y+geometry.height+text_size;
 582         if ((image_info->adjoin != MagickFalse) &&
 583             (GetNextImageInList(image) != (Image *) NULL))
 584           (void) CopyMagickString(buffer,"%%BoundingBox: (atend)\n",
 585             MaxTextExtent);
 586         else
 587           {
 588             (void) FormatLocaleString(buffer,MaxTextExtent,
 589               "%%%%BoundingBox: %.20g %.20g %.20g %.20g\n",ceil(bounds.x1-0.5),
 590               ceil(bounds.y1-0.5),floor(bounds.x2+0.5),floor(bounds.y2+0.5));
 591             (void) WriteBlobString(image,buffer);
 592             (void) FormatLocaleString(buffer,MaxTextExtent,
 593               "%%%%HiResBoundingBox: %g %g %g %g\n",bounds.x1,
 594               bounds.y1,bounds.x2,bounds.y2);
 595           }
 596         (void) WriteBlobString(image,buffer);
 597         value=GetImageProperty(image,"label",exception);
 598         if (value != (const char *) NULL)
 599           (void) WriteBlobString(image,
 600             "%%DocumentNeededResources: font Helvetica\n");
 601         (void) WriteBlobString(image,"%%LanguageLevel: 2\n");
 602         if (LocaleCompare(image_info->magick,"PS2") != 0)
 603           (void) WriteBlobString(image,"%%Pages: 1\n");
 604         else
 605           {
 606             (void) WriteBlobString(image,"%%Orientation: Portrait\n");
 607             (void) WriteBlobString(image,"%%PageOrder: Ascend\n");
 608             if (image_info->adjoin == MagickFalse)
 609               (void) CopyMagickString(buffer,"%%Pages: 1\n",MaxTextExtent);
 610             else
 611               (void) FormatLocaleString(buffer,MaxTextExtent,
 612                 "%%%%Pages: %.20g\n",(double) GetImageListLength(image));
 613             (void) WriteBlobString(image,buffer);
 614           }
 615         if (image->colorspace == CMYKColorspace)
 616           (void) WriteBlobString(image,
 617             "%%DocumentProcessColors: Cyan Magenta Yellow Black\n");
 618         (void) WriteBlobString(image,"%%EndComments\n");
 619         (void) WriteBlobString(image,"\n%%BeginDefaults\n");
 620         (void) WriteBlobString(image,"%%EndDefaults\n\n");
 621         /*
 622           Output Postscript commands.
 623         */
 624         for (q=PostscriptProlog; *q; q++)
 625         {
 626           switch (compression)
 627           {
 628             case NoCompression:
 629             {
 630               (void) FormatLocaleString(buffer,MaxTextExtent,*q,
 631                 "/ASCII85Decode filter");
 632               break;
 633             }
 634             case JPEGCompression:
 635             {
 636               (void) FormatLocaleString(buffer,MaxTextExtent,*q,
 637                 "/DCTDecode filter");
 638               break;
 639             }
 640             case LZWCompression:
 641             {
 642               (void) FormatLocaleString(buffer,MaxTextExtent,*q,
 643                 "/LZWDecode filter");
 644               break;
 645             }
 646             case FaxCompression:
 647             case Group4Compression:
 648             {
 649               (void) FormatLocaleString(buffer,MaxTextExtent,*q," ");
 650               break;
 651             }
 652             default:
 653             {
 654               (void) FormatLocaleString(buffer,MaxTextExtent,*q,
 655                 "/RunLengthDecode filter");
 656               break;
 657             }
 658           }
 659           (void) WriteBlobString(image,buffer);
 660           (void) WriteBlobByte(image,'\n');
 661         }
 662         value=GetImageProperty(image,"label",exception);
 663         if (value != (const char *) NULL)
 664           for (j=(ssize_t) MultilineCensus(value)-1; j >= 0; j--)
 665           {
 666             (void) WriteBlobString(image,"  /label 512 string def\n");
 667             (void) WriteBlobString(image,"  currentfile label readline pop\n");
 668             (void) FormatLocaleString(buffer,MaxTextExtent,
 669               "  0 y %g add moveto label show pop\n",j*pointsize+12);
 670             (void) WriteBlobString(image,buffer);
 671           }
 672         for (q=PostscriptEpilog; *q; q++)
 673         {
 674           (void) FormatLocaleString(buffer,MaxTextExtent,"%s\n",*q);
 675           (void) WriteBlobString(image,buffer);
 676         }
 677         if (LocaleCompare(image_info->magick,"PS2") == 0)
 678           (void) WriteBlobString(image,"  showpage\n");
 679         (void) WriteBlobString(image,"} bind def\n");
 680         (void) WriteBlobString(image,"%%EndProlog\n");
 681       }
 682     (void) FormatLocaleString(buffer,MaxTextExtent,"%%%%Page:  1 %.20g\n",
 683       (double) page++);
 684     (void) WriteBlobString(image,buffer);
 685     (void) FormatLocaleString(buffer,MaxTextExtent,
 686       "%%%%PageBoundingBox: %.20g %.20g %.20g %.20g\n",(double) geometry.x,
 687       (double) geometry.y,geometry.x+(double) geometry.width,geometry.y+(double)
 688       (geometry.height+text_size));
 689     (void) WriteBlobString(image,buffer);
 690     if ((double) geometry.x < bounds.x1)
 691       bounds.x1=(double) geometry.x;
 692     if ((double) geometry.y < bounds.y1)
 693       bounds.y1=(double) geometry.y;
 694     if ((double) (geometry.x+geometry.width-1) > bounds.x2)
 695       bounds.x2=(double) geometry.x+geometry.width-1;
 696     if ((double) (geometry.y+(geometry.height+text_size)-1) > bounds.y2)
 697       bounds.y2=(double) geometry.y+(geometry.height+text_size)-1;
 698     value=GetImageProperty(image,"label",exception);
 699     if (value != (const char *) NULL)
 700       (void) WriteBlobString(image,"%%PageResources: font Times-Roman\n");
 701     if (LocaleCompare(image_info->magick,"PS2") != 0)
 702       (void) WriteBlobString(image,"userdict begin\n");
 703     start=TellBlob(image);
 704     (void) FormatLocaleString(buffer,MaxTextExtent,
 705       "%%%%BeginData:%13ld %s Bytes\n",0L,
 706       compression == NoCompression ? "ASCII" : "Binary");
 707     (void) WriteBlobString(image,buffer);
 708     stop=TellBlob(image);
 709     (void) WriteBlobString(image,"DisplayImage\n");
 710     /*
 711       Output image data.
 712     */
 713     (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n%g %g\n%g\n",
 714       (double) geometry.x,(double) geometry.y,scale.x,scale.y,pointsize);
 715     (void) WriteBlobString(image,buffer);
 716     labels=(char **) NULL;
 717     value=GetImageProperty(image,"label",exception);
 718     if (value != (const char *) NULL)
 719       labels=StringToList(value);
 720     if (labels != (char **) NULL)
 721       {
 722         for (i=0; labels[i] != (char *) NULL; i++)
 723         {
 724           (void) FormatLocaleString(buffer,MaxTextExtent,"%s \n",
 725             labels[i]);
 726           (void) WriteBlobString(image,buffer);
 727           labels[i]=DestroyString(labels[i]);
 728         }
 729         labels=(char **) RelinquishMagickMemory(labels);
 730       }
 731     number_pixels=(MagickSizeType) image->columns*image->rows;
 732     if (number_pixels != (MagickSizeType) ((size_t) number_pixels))
 733       ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 734     if ((compression == FaxCompression) || (compression == Group4Compression) ||
 735         ((image_info->type != TrueColorType) &&
 736          (IsImageGray(image,exception) != MagickFalse)))
 737       {
 738         (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n1\n%d\n",
 739           (double) image->columns,(double) image->rows,(int)
 740           (image->colorspace == CMYKColorspace));
 741         (void) WriteBlobString(image,buffer);
 742         (void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
 743           (int) ((compression != FaxCompression) &&
 744            (compression != Group4Compression)));
 745         (void) WriteBlobString(image,buffer);
 746         (void) WriteBlobString(image,"0\n");
 747         (void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
 748            (compression == FaxCompression) ||
 749            (compression == Group4Compression) ? 1 : 8);
 750         (void) WriteBlobString(image,buffer);
 751         switch (compression)
 752         {
 753           case FaxCompression:
 754           case Group4Compression:
 755           {
 756             if (LocaleCompare(CCITTParam,"0") == 0)
 757               {
 758                 (void) HuffmanEncodeImage(image_info,image,image,exception);
 759                 break;
 760               }
 761             (void) Huffman2DEncodeImage(image_info,image,image,exception);
 762             break;
 763           }
 764           case JPEGCompression:
 765           {
 766             status=InjectImageBlob(image_info,image,image,"jpeg",exception);
 767             if (status == MagickFalse)
 768               {
 769                 (void) CloseBlob(image);
 770                 return(MagickFalse);
 771               }
 772             break;
 773           }
 774           case RLECompression:
 775           default:
 776           {
 777             MemoryInfo
 778               *pixel_info;
 779
 780             register unsigned char
 781               *q;
 782
 783             /*
 784               Allocate pixel array.
 785             */
 786             length=(size_t) number_pixels;
 787             pixel_info=AcquireVirtualMemory(length,sizeof(*pixels));
 788             if (pixel_info == (MemoryInfo *) NULL)
 789               ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 790             pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
 791             /*
 792               Dump runlength encoded pixels.
 793             */
 794             q=pixels;
 795             for (y=0; y < (ssize_t) image->rows; y++)
 796             {
 797               p=GetVirtualPixels(image,0,y,image->columns,1,exception);
 798               if (p == (const Quantum *) NULL)
 799                 break;
 800               for (x=0; x < (ssize_t) image->columns; x++)
 801               {
 802                 *q++=ScaleQuantumToChar(ClampToQuantum(GetPixelLuma(image,p)));
 803                 p+=GetPixelChannels(image);
 804               }
 805               progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
 806                 image->rows);
 807               if (progress == MagickFalse)
 808                 break;
 809             }
 810             length=(size_t) (q-pixels);
 811             if (compression == LZWCompression)
 812               status=LZWEncodeImage(image,length,pixels,exception);
 813             else
 814               status=PackbitsEncodeImage(image,length,pixels,exception);
 815             pixel_info=RelinquishVirtualMemory(pixel_info);
 816             if (status == MagickFalse)
 817               {
 818                 (void) CloseBlob(image);
 819                 return(MagickFalse);
 820               }
 821             break;
 822           }
 823           case NoCompression:
 824           {
 825             /*
 826               Dump uncompressed PseudoColor packets.
 827             */
 828             Ascii85Initialize(image);
 829             for (y=0; y < (ssize_t) image->rows; y++)
 830             {
 831               p=GetVirtualPixels(image,0,y,image->columns,1,exception);
 832               if (p == (const Quantum *) NULL)
 833                 break;
 834               for (x=0; x < (ssize_t) image->columns; x++)
 835               {
 836                 Ascii85Encode(image,ScaleQuantumToChar(ClampToQuantum(
 837                   GetPixelLuma(image,p))));
 838                 p+=GetPixelChannels(image);
 839               }
 840               progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
 841                 y,image->rows);
 842               if (progress == MagickFalse)
 843                 break;
 844             }
 845             Ascii85Flush(image);
 846             break;
 847           }
 848         }
 849       }
 850     else
 851       if ((image->storage_class == DirectClass) || (image->colors > 256) ||
 852           (compression == JPEGCompression) || (image->alpha_trait != UndefinedPixelTrait))
 853         {
 854           (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n0\n%d\n",
 855             (double) image->columns,(double) image->rows,(int)
 856             (image->colorspace == CMYKColorspace));
 857           (void) WriteBlobString(image,buffer);
 858           (void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
 859             (int) (compression == NoCompression));
 860           (void) WriteBlobString(image,buffer);
 861           switch (compression)
 862           {
 863             case JPEGCompression:
 864             {
 865               status=InjectImageBlob(image_info,image,image,"jpeg",exception);
 866               if (status == MagickFalse)
 867                 {
 868                   (void) CloseBlob(image);
 869                   return(MagickFalse);
 870                 }
 871               break;
 872             }
 873             case RLECompression:
 874             default:
 875             {
 876               MemoryInfo
 877                 *pixel_info;
 878
 879               register unsigned char
 880                 *q;
 881
 882               /*
 883                 Allocate pixel array.
 884               */
 885               length=(size_t) number_pixels;
 886               pixel_info=AcquireVirtualMemory(length,4*sizeof(*pixels));
 887               if (pixel_info == (MemoryInfo *) NULL)
 888                 ThrowWriterException(ResourceLimitError,
 889                   "MemoryAllocationFailed");
 890               pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
 891               /*
 892                 Dump runlength encoded pixels.
 893               */
 894               q=pixels;
 895               for (y=0; y < (ssize_t) image->rows; y++)
 896               {
 897                 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
 898                 if (p == (const Quantum *) NULL)
 899                   break;
 900                 for (x=0; x < (ssize_t) image->columns; x++)
 901                 {
 902                   if ((image->alpha_trait != UndefinedPixelTrait) &&
 903                       (GetPixelAlpha(image,p) == (Quantum) TransparentAlpha))
 904                     {
 905                       *q++=ScaleQuantumToChar(QuantumRange);
 906                       *q++=ScaleQuantumToChar(QuantumRange);
 907                       *q++=ScaleQuantumToChar(QuantumRange);
 908                     }
 909                   else
 910                     if (image->colorspace != CMYKColorspace)
 911                       {
 912                         *q++=ScaleQuantumToChar(GetPixelRed(image,p));
 913                         *q++=ScaleQuantumToChar(GetPixelGreen(image,p));
 914                         *q++=ScaleQuantumToChar(GetPixelBlue(image,p));
 915                       }
 916                     else
 917                       {
 918                         *q++=ScaleQuantumToChar(GetPixelRed(image,p));
 919                         *q++=ScaleQuantumToChar(GetPixelGreen(image,p));
 920                         *q++=ScaleQuantumToChar(GetPixelBlue(image,p));
 921                         *q++=ScaleQuantumToChar(GetPixelBlack(image,p));
 922                       }
 923                   p+=GetPixelChannels(image);
 924                 }
 925                 progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
 926                   y,image->rows);
 927                 if (progress == MagickFalse)
 928                   break;
 929               }
 930               length=(size_t) (q-pixels);
 931               if (compression == LZWCompression)
 932                 status=LZWEncodeImage(image,length,pixels,exception);
 933               else
 934                 status=PackbitsEncodeImage(image,length,pixels,exception);
 935               if (status == MagickFalse)
 936                 {
 937                   (void) CloseBlob(image);
 938                   return(MagickFalse);
 939                 }
 940               pixel_info=RelinquishVirtualMemory(pixel_info);
 941               break;
 942             }
 943             case NoCompression:
 944             {
 945               /*
 946                 Dump uncompressed DirectColor packets.
 947               */
 948               Ascii85Initialize(image);
 949               for (y=0; y < (ssize_t) image->rows; y++)
 950               {
 951                 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
 952                 if (p == (const Quantum *) NULL)
 953                   break;
 954                 for (x=0; x < (ssize_t) image->columns; x++)
 955                 {
 956                   if ((image->alpha_trait != UndefinedPixelTrait) &&
 957                       (GetPixelAlpha(image,p) == (Quantum) TransparentAlpha))
 958                     {
 959                       Ascii85Encode(image,ScaleQuantumToChar((Quantum)
 960                         QuantumRange));
 961                       Ascii85Encode(image,ScaleQuantumToChar((Quantum)
 962                         QuantumRange));
 963                       Ascii85Encode(image,ScaleQuantumToChar((Quantum)
 964                         QuantumRange));
 965                     }
 966                   else
 967                     if (image->colorspace != CMYKColorspace)
 968                       {
 969                         Ascii85Encode(image,ScaleQuantumToChar(
 970                           GetPixelRed(image,p)));
 971                         Ascii85Encode(image,ScaleQuantumToChar(
 972                           GetPixelGreen(image,p)));
 973                         Ascii85Encode(image,ScaleQuantumToChar(
 974                           GetPixelBlue(image,p)));
 975                       }
 976                     else
 977                       {
 978                         Ascii85Encode(image,ScaleQuantumToChar(
 979                           GetPixelRed(image,p)));
 980                         Ascii85Encode(image,ScaleQuantumToChar(
 981                           GetPixelGreen(image,p)));
 982                         Ascii85Encode(image,ScaleQuantumToChar(
 983                           GetPixelBlue(image,p)));
 984                         Ascii85Encode(image,ScaleQuantumToChar(
 985                           GetPixelBlack(image,p)));
 986                       }
 987                   p+=GetPixelChannels(image);
 988                 }
 989                 progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
 990                   y,image->rows);
 991                 if (progress == MagickFalse)
 992                   break;
 993               }
 994               Ascii85Flush(image);
 995               break;
 996             }
 997           }
 998         }
 999       else
1000         {
1001           /*
1002             Dump number of colors and colormap.
1003           */
1004           (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n1\n%d\n",
1005             (double) image->columns,(double) image->rows,(int)
1006             (image->colorspace == CMYKColorspace));
1007           (void) WriteBlobString(image,buffer);
1008           (void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
1009             (int) (compression == NoCompression));
1010           (void) WriteBlobString(image,buffer);
1011           (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g\n",(double)
1012             image->colors);
1013           (void) WriteBlobString(image,buffer);
1014           for (i=0; i < (ssize_t) image->colors; i++)
1015           {
1016             (void) FormatLocaleString(buffer,MaxTextExtent,"%02X%02X%02X\n",
1017               ScaleQuantumToChar(image->colormap[i].red),
1018               ScaleQuantumToChar(image->colormap[i].green),
1019               ScaleQuantumToChar(image->colormap[i].blue));
1020             (void) WriteBlobString(image,buffer);
1021           }
1022           switch (compression)
1023           {
1024             case RLECompression:
1025             default:
1026             {
1027               MemoryInfo
1028                 *pixel_info;
1029
1030               register unsigned char
1031                 *q;
1032
1033               /*
1034                 Allocate pixel array.
1035               */
1036               length=(size_t) number_pixels;
1037               pixel_info=AcquireVirtualMemory(length,sizeof(*pixels));
1038               if (pixel_info == (MemoryInfo *) NULL)
1039                 ThrowWriterException(ResourceLimitError,
1040                   "MemoryAllocationFailed");
1041               pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
1042               /*
1043                 Dump runlength encoded pixels.
1044               */
1045               q=pixels;
1046               for (y=0; y < (ssize_t) image->rows; y++)
1047               {
1048                 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1049                 if (p == (const Quantum *) NULL)
1050                   break;
1051                 for (x=0; x < (ssize_t) image->columns; x++)
1052                 {
1053                   *q++=(unsigned char) GetPixelIndex(image,p);
1054                   p+=GetPixelChannels(image);
1055                 }
1056                 progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
1057                   y,image->rows);
1058                 if (progress == MagickFalse)
1059                   break;
1060               }
1061               length=(size_t) (q-pixels);
1062               if (compression == LZWCompression)
1063                 status=LZWEncodeImage(image,length,pixels,exception);
1064               else
1065                 status=PackbitsEncodeImage(image,length,pixels,exception);
1066               pixel_info=RelinquishVirtualMemory(pixel_info);
1067               if (status == MagickFalse)
1068                 {
1069                   (void) CloseBlob(image);
1070                   return(MagickFalse);
1071                 }
1072               break;
1073             }
1074             case NoCompression:
1075             {
1076               /*
1077                 Dump uncompressed PseudoColor packets.
1078               */
1079               Ascii85Initialize(image);
1080               for (y=0; y < (ssize_t) image->rows; y++)
1081               {
1082                 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1083                 if (p == (const Quantum *) NULL)
1084                   break;
1085                 for (x=0; x < (ssize_t) image->columns; x++)
1086                 {
1087                   Ascii85Encode(image,(unsigned char) GetPixelIndex(image,p));
1088                   p+=GetPixelChannels(image);
1089                 }
1090                 progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
1091                   y,image->rows);
1092                 if (progress == MagickFalse)
1093                   break;
1094               }
1095               Ascii85Flush(image);
1096               break;
1097             }
1098           }
1099         }
1100     (void) WriteBlobByte(image,'\n');
1101     length=(size_t) (TellBlob(image)-stop);
1102     stop=TellBlob(image);
1103     offset=SeekBlob(image,start,SEEK_SET);
1104     if (offset < 0)
1105       ThrowWriterException(CorruptImageError,"ImproperImageHeader");
1106     (void) FormatLocaleString(buffer,MaxTextExtent,
1107       "%%%%BeginData:%13ld %s Bytes\n",(long) length,
1108       compression == NoCompression ? "ASCII" : "Binary");
1109     (void) WriteBlobString(image,buffer);
1110     offset=SeekBlob(image,stop,SEEK_SET);
1111     (void) WriteBlobString(image,"%%EndData\n");
1112     if (LocaleCompare(image_info->magick,"PS2") != 0)
1113       (void) WriteBlobString(image,"end\n");
1114     (void) WriteBlobString(image,"%%PageTrailer\n");
1115     if (GetNextImageInList(image) == (Image *) NULL)
1116       break;
1117     image=SyncNextImageInList(image);
1118     status=SetImageProgress(image,SaveImagesTag,scene++,
1119       GetImageListLength(image));
1120     if (status == MagickFalse)
1121       break;
1122   } while (image_info->adjoin != MagickFalse);
1123   (void) WriteBlobString(image,"%%Trailer\n");
1124   if (page > 1)
1125     {
1126       (void) FormatLocaleString(buffer,MaxTextExtent,
1127         "%%%%BoundingBox: %.20g %.20g %.20g %.20g\n",ceil(bounds.x1-0.5),
1128         ceil(bounds.y1-0.5),floor(bounds.x2+0.5),floor(bounds.y2+0.5));
1129       (void) WriteBlobString(image,buffer);
1130       (void) FormatLocaleString(buffer,MaxTextExtent,
1131         "%%%%HiResBoundingBox: %g %g %g %g\n",bounds.x1,bounds.y1,
1132         bounds.x2,bounds.y2);
1133       (void) WriteBlobString(image,buffer);
1134     }
1135   (void) WriteBlobString(image,"%%EOF\n");
1136   (void) CloseBlob(image);
1137   return(MagickTrue);
1138 }