granicus.if.org Git - imagemagick/blob - coders/ps3.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                            PPPP   SSSSS  33333                              %
   7 %                            P   P  SS        33                              %
   8 %                            PPPP    SSS    333                               %
   9 %                            P         SS     33                              %
  10 %                            P      SSSSS  33333                              %
  11 %                                                                             %
  12 %                                                                             %
  13 %                     Write Postscript Level III Format                       %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John Cristy                                  %
  17 %                              Lars Ruben Skyum                               %
  18 %                                 July 1992                                   %
  19 %                                                                             %
  20 %                                                                             %
  21 %  Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization      %
  22 %  dedicated to making software imaging solutions freely available.           %
  23 %                                                                             %
  24 %  You may not use this file except in compliance with the License.  You may  %
  25 %  obtain a copy of the License at                                            %
  26 %                                                                             %
  27 %    http://www.imagemagick.org/script/license.php                            %
  28 %                                                                             %
  29 %  Unless required by applicable law or agreed to in writing, software        %
  30 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  31 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  32 %  See the License for the specific language governing permissions and        %
  33 %  limitations under the License.                                             %
  34 %                                                                             %
  35 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  36 %
  37 %
  38 */
  39 \f
  40 /*
  41   Include declarations.
  42 */
  43 #include "MagickCore/studio.h"
  44 #include "MagickCore/attribute.h"
  45 #include "MagickCore/blob.h"
  46 #include "MagickCore/blob-private.h"
  47 #include "MagickCore/cache.h"
  48 #include "MagickCore/color.h"
  49 #include "MagickCore/color-private.h"
  50 #include "MagickCore/compress.h"
  51 #include "MagickCore/constitute.h"
  52 #include "MagickCore/draw.h"
  53 #include "MagickCore/exception.h"
  54 #include "MagickCore/exception-private.h"
  55 #include "MagickCore/geometry.h"
  56 #include "MagickCore/image.h"
  57 #include "MagickCore/image-private.h"
  58 #include "MagickCore/list.h"
  59 #include "MagickCore/magick.h"
  60 #include "MagickCore/memory_.h"
  61 #include "MagickCore/monitor.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/token.h"
  72 #include "MagickCore/utility.h"
  73 #include "MagickCore/module.h"
  74 \f
  75 /*
  76   Define declarations.
  77 */
  78 #define PS3_NoCompression "0"
  79 #define PS3_FaxCompression "1"
  80 #define PS3_JPEGCompression "2"
  81 #define PS3_LZWCompression "3"
  82 #define PS3_RLECompression "4"
  83 #define PS3_ZipCompression "5"
  84
  85 #define PS3_RGBColorspace "0"
  86 #define PS3_CMYKColorspace "1"
  87
  88 #define PS3_DirectClass "0"
  89 #define PS3_PseudoClass "1"
  90
  91 #if defined(MAGICKCORE_TIFF_DELEGATE)
  92 #define CCITTParam  "-1"
  93 #else
  94 #define CCITTParam  "0"
  95 #endif
  96 \f
  97 /*
  98   Forward declarations.
  99 */
 100 static MagickBooleanType
 101   WritePS3Image(const ImageInfo *,Image *);
 102 \f
 103 /*
 104 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 105 %                                                                             %
 106 %                                                                             %
 107 %                                                                             %
 108 %   R e g i s t e r P S 3 I m a g e                                           %
 109 %                                                                             %
 110 %                                                                             %
 111 %                                                                             %
 112 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 113 %
 114 %  RegisterPS3Image() adds properties for the PS3 image format to the list of
 115 %  supported formats.  The properties include the image format tag, a method to
 116 %  read and/or write the format, whether the format supports the saving of more
 117 %  than one frame to the same file or blob, whether the format supports native
 118 %  in-memory I/O, and a brief description of the format.
 119 %
 120 %  The format of the RegisterPS3Image method is:
 121 %
 122 %      size_t RegisterPS3Image(void)
 123 %
 124 */
 125 ModuleExport size_t RegisterPS3Image(void)
 126 {
 127   MagickInfo
 128     *entry;
 129
 130   entry=SetMagickInfo("EPS3");
 131   entry->encoder=(EncodeImageHandler *) WritePS3Image;
 132   entry->description=ConstantString("Level III Encapsulated PostScript");
 133   entry->module=ConstantString("PS3");
 134   entry->seekable_stream=MagickTrue;
 135   (void) RegisterMagickInfo(entry);
 136   entry=SetMagickInfo("PS3");
 137   entry->encoder=(EncodeImageHandler *) WritePS3Image;
 138   entry->description=ConstantString("Level III PostScript");
 139   entry->module=ConstantString("PS3");
 140   entry->seekable_stream=MagickTrue;
 141   (void) RegisterMagickInfo(entry);
 142   return(MagickImageCoderSignature);
 143 }
 144 \f
 145 /*
 146 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 147 %                                                                             %
 148 %                                                                             %
 149 %                                                                             %
 150 %   U n r e g i s t e r P S 3 I m a g e                                       %
 151 %                                                                             %
 152 %                                                                             %
 153 %                                                                             %
 154 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 155 %
 156 %  UnregisterPS3Image() removes format registrations made by the PS3 module
 157 %  from the list of supported formats.
 158 %
 159 %  The format of the UnregisterPS3Image method is:
 160 %
 161 %      UnregisterPS3Image(void)
 162 %
 163 */
 164 ModuleExport void UnregisterPS3Image(void)
 165 {
 166   (void) UnregisterMagickInfo("EPS3");
 167   (void) UnregisterMagickInfo("PS3");
 168 }
 169 \f
 170 /*
 171 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 172 %                                                                             %
 173 %                                                                             %
 174 %                                                                             %
 175 %   W r i t e P S 3 I m a g e                                                 %
 176 %                                                                             %
 177 %                                                                             %
 178 %                                                                             %
 179 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 180 %
 181 %  WritePS3Image() translates an image to encapsulated Postscript Level III
 182 %  for printing.  If the supplied geometry is null, the image is centered on
 183 %  the Postscript page.  Otherwise, the image is positioned as specified by the
 184 %  geometry.
 185 %
 186 %  The format of the WritePS3Image method is:
 187 %
 188 %      MagickBooleanType WritePS3Image(const ImageInfo *image_info,Image *image)
 189 %
 190 %  A description of each parameter follows:
 191 %
 192 %    o image_info: Specifies a pointer to a ImageInfo structure.
 193 %
 194 %    o image: the image.
 195 %
 196 */
 197
 198 static MagickBooleanType Huffman2DEncodeImage(const ImageInfo *image_info,
 199   Image *image,Image *inject_image)
 200 {
 201   Image
 202     *group4_image;
 203
 204   ImageInfo
 205     *write_info;
 206
 207   MagickBooleanType
 208     status;
 209
 210   size_t
 211     length;
 212
 213   unsigned char
 214     *group4;
 215
 216   status=MagickTrue;
 217   write_info=CloneImageInfo(image_info);
 218   (void) CopyMagickString(write_info->filename,"GROUP4:",MaxTextExtent);
 219   (void) CopyMagickString(write_info->magick,"GROUP4",MaxTextExtent);
 220   group4_image=CloneImage(inject_image,0,0,MagickTrue,&image->exception);
 221   if (group4_image == (Image *) NULL)
 222     return(MagickFalse);
 223   group4=(unsigned char *) ImageToBlob(write_info,group4_image,&length,
 224     &image->exception);
 225   group4_image=DestroyImage(group4_image);
 226   if (group4 == (unsigned char *) NULL)
 227     return(MagickFalse);
 228   write_info=DestroyImageInfo(write_info);
 229   if (WriteBlob(image,length,group4) != (ssize_t) length)
 230     status=MagickFalse;
 231   group4=(unsigned char *) RelinquishMagickMemory(group4);
 232   return(status);
 233 }
 234
 235 static MagickBooleanType SerializeImage(const ImageInfo *image_info,
 236   Image *image,unsigned char **pixels,size_t *length)
 237 {
 238   MagickBooleanType
 239     status;
 240
 241   register const Quantum
 242     *p;
 243
 244   register ssize_t
 245     x;
 246
 247   register unsigned char
 248     *q;
 249
 250   ssize_t
 251     y;
 252
 253   assert(image != (Image *) NULL);
 254   assert(image->signature == MagickSignature);
 255   if (image->debug != MagickFalse)
 256     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 257   status=MagickTrue;
 258   *length=(image->colorspace == CMYKColorspace ? 4 : 3)*(size_t)
 259     image->columns*image->rows;
 260   *pixels=(unsigned char *) AcquireQuantumMemory(*length,sizeof(**pixels));
 261   if (*pixels == (unsigned char *) NULL)
 262     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 263   q=(*pixels);
 264   for (y=0; y < (ssize_t) image->rows; y++)
 265   {
 266     p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
 267     if (p == (const Quantum *) NULL)
 268       break;
 269     if (image->colorspace != CMYKColorspace)
 270       for (x=0; x < (ssize_t) image->columns; x++)
 271       {
 272         *q++=ScaleQuantumToChar(GetPixelRed(image,p));
 273         *q++=ScaleQuantumToChar(GetPixelGreen(image,p));
 274         *q++=ScaleQuantumToChar(GetPixelBlue(image,p));
 275         p+=GetPixelChannels(image);
 276       }
 277     else
 278       for (x=0; x < (ssize_t) image->columns; x++)
 279       {
 280         *q++=ScaleQuantumToChar(GetPixelRed(image,p));
 281         *q++=ScaleQuantumToChar(GetPixelGreen(image,p));
 282         *q++=ScaleQuantumToChar(GetPixelBlue(image,p));
 283         *q++=ScaleQuantumToChar(GetPixelBlack(image,p));
 284         p+=GetPixelChannels(image);
 285       }
 286     if (image->previous == (Image *) NULL)
 287       {
 288         status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
 289           image->rows);
 290         if (status == MagickFalse)
 291           break;
 292       }
 293   }
 294   if (status == MagickFalse)
 295     *pixels=(unsigned char *) RelinquishMagickMemory(*pixels);
 296   return(status);
 297 }
 298
 299 static MagickBooleanType SerializeImageChannel(const ImageInfo *image_info,
 300   Image *image,unsigned char **pixels,size_t *length)
 301 {
 302   MagickBooleanType
 303     status;
 304
 305   register const Quantum
 306     *p;
 307
 308   register ssize_t
 309     x;
 310
 311   register unsigned char
 312     *q;
 313
 314   size_t
 315     pack,
 316     padded_columns;
 317
 318   ssize_t
 319     y;
 320
 321   unsigned char
 322     code,
 323     bit;
 324
 325   assert(image != (Image *) NULL);
 326   assert(image->signature == MagickSignature);
 327   if (image->debug != MagickFalse)
 328     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 329   status=MagickTrue;
 330   pack=IsImageMonochrome(image,&image->exception) == MagickFalse ? 1UL : 8UL;
 331   padded_columns=((image->columns+pack-1)/pack)*pack;
 332   *length=(size_t) padded_columns*image->rows/pack;
 333   *pixels=(unsigned char *) AcquireQuantumMemory(*length,sizeof(**pixels));
 334   if (*pixels == (unsigned char *) NULL)
 335     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 336   q=(*pixels);
 337   for (y=0; y < (ssize_t) image->rows; y++)
 338   {
 339     p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
 340     if (p == (const Quantum *) NULL)
 341       break;
 342     if (pack == 1)
 343       for (x=0; x < (ssize_t) image->columns; x++)
 344       {
 345         *q++=ScaleQuantumToChar(GetPixelIntensity(image,p));
 346         p+=GetPixelChannels(image);
 347       }
 348     else
 349       {
 350         code='\0';
 351         for (x=0; x < (ssize_t) padded_columns; x++)
 352         {
 353           bit=(unsigned char) 0x00;
 354           if (x < (ssize_t) image->columns)
 355             bit=(unsigned char) (GetPixelIntensity(image,p) == (Quantum)
 356               TransparentAlpha ? 0x01 : 0x00);
 357           code=(code << 1)+bit;
 358           if (((x+1) % pack) == 0)
 359             {
 360               *q++=code;
 361               code='\0';
 362             }
 363           p+=GetPixelChannels(image);
 364         }
 365       }
 366     status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
 367       image->rows);
 368     if (status == MagickFalse)
 369       break;
 370   }
 371   if (status == MagickFalse)
 372     *pixels=(unsigned char *) RelinquishMagickMemory(*pixels);
 373   return(status);
 374 }
 375
 376 static MagickBooleanType SerializeImageIndexes(const ImageInfo *image_info,
 377   Image *image,unsigned char **pixels,size_t *length)
 378 {
 379   MagickBooleanType
 380     status;
 381
 382   register const Quantum
 383     *p;
 384
 385   register ssize_t
 386     x;
 387
 388   register unsigned char
 389     *q;
 390
 391   ssize_t
 392     y;
 393
 394   assert(image != (Image *) NULL);
 395   assert(image->signature == MagickSignature);
 396   if (image->debug != MagickFalse)
 397     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 398   status=MagickTrue;
 399   *length=(size_t) image->columns*image->rows;
 400   *pixels=(unsigned char *) AcquireQuantumMemory(*length,sizeof(**pixels));
 401   if (*pixels == (unsigned char *) NULL)
 402     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 403   q=(*pixels);
 404   for (y=0; y < (ssize_t) image->rows; y++)
 405   {
 406     p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
 407     if (p == (const Quantum *) NULL)
 408       break;
 409     for (x=0; x < (ssize_t) image->columns; x++)
 410     {
 411       *q++=(unsigned char) GetPixelIndex(image,p);
 412       p+=GetPixelChannels(image);
 413     }
 414     if (image->previous == (Image *) NULL)
 415       {
 416         status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
 417           image->rows);
 418         if (status == MagickFalse)
 419           break;
 420       }
 421   }
 422   if (status == MagickFalse)
 423     *pixels=(unsigned char *) RelinquishMagickMemory(*pixels);
 424   return(status);
 425 }
 426
 427 static MagickBooleanType WritePS3MaskImage(const ImageInfo *image_info,
 428   Image *image,const CompressionType compression)
 429 {
 430   ChannelType
 431     channel_mask;
 432
 433   char
 434     buffer[MaxTextExtent];
 435
 436   Image
 437     *mask_image;
 438
 439   MagickBooleanType
 440     status;
 441
 442   MagickOffsetType
 443     offset,
 444     start,
 445     stop;
 446
 447   register ssize_t
 448     i;
 449
 450   size_t
 451     length;
 452
 453   unsigned char
 454     *pixels;
 455
 456   assert(image_info != (ImageInfo *) NULL);
 457   assert(image_info->signature == MagickSignature);
 458   assert(image != (Image *) NULL);
 459   assert(image->signature == MagickSignature);
 460   if (image->debug != MagickFalse)
 461     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 462   assert(image->matte != MagickFalse);
 463   status=MagickTrue;
 464   /*
 465     Note BeginData DSC comment for update later.
 466   */
 467   start=TellBlob(image);
 468   (void) FormatLocaleString(buffer,MaxTextExtent,
 469     "%%%%BeginData:%13ld %s Bytes\n",0L,compression == NoCompression ?
 470     "ASCII" : "BINARY");
 471   (void) WriteBlobString(image,buffer);
 472   stop=TellBlob(image);
 473   /*
 474     Only lossless compressions for the mask.
 475   */
 476   switch (compression)
 477   {
 478     case NoCompression:
 479     default:
 480     {
 481       (void) FormatLocaleString(buffer,MaxTextExtent,
 482         "currentfile %.20g %.20g "PS3_NoCompression" ByteStreamDecodeFilter\n",
 483         (double) image->columns,(double) image->rows);
 484       break;
 485     }
 486     case FaxCompression:
 487     case Group4Compression:
 488     {
 489       (void) FormatLocaleString(buffer,MaxTextExtent,
 490         "currentfile %.20g %.20g "PS3_FaxCompression" ByteStreamDecodeFilter\n",
 491         (double) image->columns,(double) image->rows);
 492       break;
 493     }
 494     case LZWCompression:
 495     {
 496       (void) FormatLocaleString(buffer,MaxTextExtent,
 497         "currentfile %.20g %.20g "PS3_LZWCompression" ByteStreamDecodeFilter\n",
 498         (double) image->columns,(double) image->rows);
 499       break;
 500     }
 501     case RLECompression:
 502     {
 503       (void) FormatLocaleString(buffer,MaxTextExtent,
 504         "currentfile %.20g %.20g "PS3_RLECompression" ByteStreamDecodeFilter\n",
 505         (double) image->columns,(double) image->rows);
 506       break;
 507     }
 508     case ZipCompression:
 509     {
 510       (void) FormatLocaleString(buffer,MaxTextExtent,
 511         "currentfile %.20g %.20g "PS3_ZipCompression" ByteStreamDecodeFilter\n",
 512         (double) image->columns,(double) image->rows);
 513       break;
 514     }
 515   }
 516   (void) WriteBlobString(image,buffer);
 517   (void) WriteBlobString(image,"/ReusableStreamDecode filter\n");
 518   mask_image=CloneImage(image,0,0,MagickTrue,&image->exception);
 519   if (mask_image == (Image *) NULL)
 520     ThrowWriterException(CoderError,image->exception.reason);
 521   channel_mask=SetPixelChannelMask(mask_image,AlphaChannel);
 522   status=SeparateImage(mask_image);
 523   (void) SetPixelChannelMap(mask_image,channel_mask);
 524   if (status == MagickFalse)
 525     {
 526       mask_image=DestroyImage(mask_image);
 527       return(MagickFalse);
 528     }
 529   (void) SetImageType(mask_image,BilevelType);
 530   (void) SetImageType(mask_image,PaletteType);
 531   mask_image->matte=MagickFalse;
 532   pixels=(unsigned char *) NULL;
 533   length=0;
 534   switch (compression)
 535   {
 536     case NoCompression:
 537     default:
 538     {
 539       status=SerializeImageChannel(image_info,mask_image,&pixels,&length);
 540       if (status == MagickFalse)
 541         break;
 542       Ascii85Initialize(image);
 543       for (i=0; i < (ssize_t) length; i++)
 544         Ascii85Encode(image,pixels[i]);
 545       Ascii85Flush(image);
 546       pixels=(unsigned char *) RelinquishMagickMemory(pixels);
 547       break;
 548     }
 549     case FaxCompression:
 550     case Group4Compression:
 551     {
 552       if ((compression == FaxCompression) ||
 553           (LocaleCompare(CCITTParam,"0") == 0))
 554         status=HuffmanEncodeImage(image_info,image,mask_image);
 555       else
 556         status=Huffman2DEncodeImage(image_info,image,mask_image);
 557       break;
 558     }
 559     case LZWCompression:
 560     {
 561       status=SerializeImageChannel(image_info,mask_image,&pixels,&length);
 562       if (status == MagickFalse)
 563         break;
 564       status=LZWEncodeImage(image,length,pixels);
 565       pixels=(unsigned char *) RelinquishMagickMemory(pixels);
 566       break;
 567     }
 568     case RLECompression:
 569     {
 570       status=SerializeImageChannel(image_info,mask_image,&pixels,&length);
 571       if (status == MagickFalse)
 572         break;
 573       status=PackbitsEncodeImage(image,length,pixels);
 574       pixels=(unsigned char *) RelinquishMagickMemory(pixels);
 575       break;
 576     }
 577     case ZipCompression:
 578     {
 579       status=SerializeImageChannel(image_info,mask_image,&pixels,&length);
 580       if (status == MagickFalse)
 581         break;
 582       status=ZLIBEncodeImage(image,length,pixels);
 583       pixels=(unsigned char *) RelinquishMagickMemory(pixels);
 584       break;
 585     }
 586   }
 587   mask_image=DestroyImage(mask_image);
 588   (void) WriteBlobByte(image,'\n');
 589   length=(size_t) (TellBlob(image)-stop);
 590   stop=TellBlob(image);
 591   offset=SeekBlob(image,start,SEEK_SET);
 592   if (offset < 0)
 593     ThrowWriterException(CorruptImageError,"ImproperImageHeader");
 594   (void) FormatLocaleString(buffer,MaxTextExtent,
 595     "%%%%BeginData:%13ld %s Bytes\n",(long) length,
 596     compression == NoCompression ? "ASCII" : "BINARY");
 597   (void) WriteBlobString(image,buffer);
 598   offset=SeekBlob(image,stop,SEEK_SET);
 599   if (offset < 0)
 600     ThrowWriterException(CorruptImageError,"ImproperImageHeader");
 601   (void) WriteBlobString(image,"%%EndData\n");
 602   (void) WriteBlobString(image, "/mask_stream exch def\n");
 603   return(status);
 604 }
 605
 606 static MagickBooleanType WritePS3Image(const ImageInfo *image_info,Image *image)
 607 {
 608   static const char
 609     *PostscriptProlog[]=
 610     {
 611       "/ByteStreamDecodeFilter",
 612       "{",
 613       "  /z exch def",
 614       "  /r exch def",
 615       "  /c exch def",
 616       "  z "PS3_NoCompression" eq { /ASCII85Decode filter } if",
 617       "  z "PS3_FaxCompression" eq",
 618       "  {",
 619       "    <<",
 620       "      /K "CCITTParam,
 621       "      /Columns c",
 622       "      /Rows r",
 623       "    >>",
 624       "    /CCITTFaxDecode filter",
 625       "  } if",
 626       "  z "PS3_JPEGCompression" eq { /DCTDecode filter } if",
 627       "  z "PS3_LZWCompression" eq { /LZWDecode filter } if",
 628       "  z "PS3_RLECompression" eq { /RunLengthDecode filter } if",
 629       "  z "PS3_ZipCompression" eq { /FlateDecode filter } if",
 630       "} bind def",
 631       "",
 632       "/DirectClassImageDict",
 633       "{",
 634       "  colorspace "PS3_RGBColorspace" eq",
 635       "  {",
 636       "    /DeviceRGB setcolorspace",
 637       "    <<",
 638       "      /ImageType 1",
 639       "      /Width columns",
 640       "      /Height rows",
 641       "      /BitsPerComponent 8",
 642       "      /DataSource pixel_stream",
 643       "      /MultipleDataSources false",
 644       "      /ImageMatrix [columns 0 0 rows neg 0 rows]",
 645       "      /Decode [0 1 0 1 0 1]",
 646       "    >>",
 647       "  }",
 648       "  {",
 649       "    /DeviceCMYK setcolorspace",
 650       "    <<",
 651       "      /ImageType 1",
 652       "      /Width columns",
 653       "      /Height rows",
 654       "      /BitsPerComponent 8",
 655       "      /DataSource pixel_stream",
 656       "      /MultipleDataSources false",
 657       "      /ImageMatrix [columns 0 0 rows neg 0 rows]",
 658       "      /Decode",
 659       "        compression "PS3_JPEGCompression" eq",
 660       "        { [1 0 1 0 1 0 1 0] }",
 661       "        { [0 1 0 1 0 1 0 1] }",
 662       "        ifelse",
 663       "    >>",
 664       "  }",
 665       "  ifelse",
 666       "} bind def",
 667       "",
 668       "/PseudoClassImageDict",
 669       "{",
 670       "  % Colors in colormap image.",
 671       "  currentfile buffer readline pop",
 672       "  token pop /colors exch def pop",
 673       "  colors 0 eq",
 674       "  {",
 675       "    % Depth of grayscale image.",
 676       "    currentfile buffer readline pop",
 677       "    token pop /bits exch def pop",
 678       "    /DeviceGray setcolorspace",
 679       "    <<",
 680       "      /ImageType 1",
 681       "      /Width columns",
 682       "      /Height rows",
 683       "      /BitsPerComponent bits",
 684       "      /Decode [0 1]",
 685       "      /ImageMatrix [columns 0 0 rows neg 0 rows]",
 686       "      /DataSource pixel_stream",
 687       "    >>",
 688       "  }",
 689       "  {",
 690       "    % RGB colormap.",
 691       "    /colormap colors 3 mul string def",
 692       "    compression "PS3_NoCompression" eq",
 693       "    { currentfile /ASCII85Decode filter colormap readstring pop pop }",
 694       "    { currentfile colormap readstring pop pop }",
 695       "    ifelse",
 696       "    [ /Indexed /DeviceRGB colors 1 sub colormap ] setcolorspace",
 697       "    <<",
 698       "      /ImageType 1",
 699       "      /Width columns",
 700       "      /Height rows",
 701       "      /BitsPerComponent 8",
 702       "      /Decode [0 255]",
 703       "      /ImageMatrix [columns 0 0 rows neg 0 rows]",
 704       "      /DataSource pixel_stream",
 705       "    >>",
 706       "  }",
 707       "  ifelse",
 708       "} bind def",
 709       "",
 710       "/NonMaskedImageDict",
 711       "{",
 712       "  class "PS3_PseudoClass" eq",
 713       "  { PseudoClassImageDict }",
 714       "  { DirectClassImageDict }",
 715       "  ifelse",
 716       "} bind def",
 717       "",
 718       "/MaskedImageDict",
 719       "{",
 720       "  <<",
 721       "    /ImageType 3",
 722       "    /InterleaveType 3",
 723       "    /DataDict NonMaskedImageDict",
 724       "    /MaskDict",
 725       "    <<",
 726       "      /ImageType 1",
 727       "      /Width columns",
 728       "      /Height rows",
 729       "      /BitsPerComponent 1",
 730       "      /DataSource mask_stream",
 731       "      /MultipleDataSources false",
 732       "      /ImageMatrix [ columns 0 0 rows neg 0 rows]",
 733       "      /Decode [ 0 1 ]",
 734       "    >>",
 735       "  >>",
 736       "} bind def",
 737       "",
 738       "/ClipImage",
 739       "{} def",
 740       "",
 741       "/DisplayImage",
 742       "{",
 743       "  /buffer 512 string def",
 744       "  % Translation.",
 745       "  currentfile buffer readline pop",
 746       "  token pop /x exch def",
 747       "  token pop /y exch def pop",
 748       "  x y translate",
 749       "  % Image size and font size.",
 750       "  currentfile buffer readline pop",
 751       "  token pop /x exch def",
 752       "  token pop /y exch def pop",
 753       "  currentfile buffer readline pop",
 754       "  token pop /pointsize exch def pop",
 755       (char *) NULL
 756     },
 757     *PostscriptEpilog[]=
 758     {
 759       "  x y scale",
 760       "  % Clipping path.",
 761       "  currentfile buffer readline pop",
 762       "  token pop /clipped exch def pop",
 763       "  % Showpage.",
 764       "  currentfile buffer readline pop",
 765       "  token pop /sp exch def pop",
 766       "  % Image pixel size.",
 767       "  currentfile buffer readline pop",
 768       "  token pop /columns exch def",
 769       "  token pop /rows exch def pop",
 770       "  % Colorspace (RGB/CMYK).",
 771       "  currentfile buffer readline pop",
 772       "  token pop /colorspace exch def pop",
 773       "  % Transparency.",
 774       "  currentfile buffer readline pop",
 775       "  token pop /alpha exch def pop",
 776       "  % Stencil mask?",
 777       "  currentfile buffer readline pop",
 778       "  token pop /stencil exch def pop",
 779       "  % Image class (direct/pseudo).",
 780       "  currentfile buffer readline pop",
 781       "  token pop /class exch def pop",
 782       "  % Compression type.",
 783       "  currentfile buffer readline pop",
 784       "  token pop /compression exch def pop",
 785       "  % Clip and render.",
 786       "  /pixel_stream currentfile columns rows compression ByteStreamDecodeFilter def",
 787       "  clipped { ClipImage } if",
 788       "  alpha stencil not and",
 789       "  { MaskedImageDict mask_stream resetfile }",
 790       "  { NonMaskedImageDict }",
 791       "  ifelse",
 792       "  stencil { 0 setgray imagemask } { image } ifelse",
 793       "  sp { showpage } if",
 794       "} bind def",
 795       (char *) NULL
 796     };
 797
 798   char
 799     buffer[MaxTextExtent],
 800     date[MaxTextExtent],
 801     **labels,
 802     page_geometry[MaxTextExtent];
 803
 804   CompressionType
 805     compression;
 806
 807   const char
 808     *option,
 809     **q,
 810     *value;
 811
 812   double
 813     pointsize;
 814
 815   GeometryInfo
 816     geometry_info;
 817
 818   MagickBooleanType
 819     status;
 820
 821   MagickOffsetType
 822     offset,
 823     scene,
 824     start,
 825     stop;
 826
 827   MagickStatusType
 828     flags;
 829
 830   PointInfo
 831     delta,
 832     resolution,
 833     scale;
 834
 835   RectangleInfo
 836     geometry,
 837     media_info,
 838     page_info;
 839
 840   register ssize_t
 841     i;
 842
 843   SegmentInfo
 844     bounds;
 845
 846   size_t
 847     length,
 848     page,
 849     pixel,
 850     text_size;
 851
 852   ssize_t
 853     j;
 854
 855   time_t
 856     timer;
 857
 858   unsigned char
 859     *pixels;
 860
 861   /*
 862     Open output image file.
 863   */
 864   assert(image_info != (const ImageInfo *) NULL);
 865   assert(image_info->signature == MagickSignature);
 866   assert(image != (Image *) NULL);
 867   assert(image->signature == MagickSignature);
 868   if (image->debug != MagickFalse)
 869     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 870   status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
 871   if (status == MagickFalse)
 872     return(MagickFalse);
 873   compression=image->compression;
 874   if (image_info->compression != UndefinedCompression)
 875     compression=image_info->compression;
 876   switch (compression)
 877   {
 878     case FaxCompression:
 879     case Group4Compression:
 880     {
 881       if ((IsImageMonochrome(image,&image->exception) == MagickFalse) ||
 882           (image->matte != MagickFalse))
 883         compression=RLECompression;
 884       break;
 885     }
 886 #if !defined(MAGICKCORE_JPEG_DELEGATE)
 887     case JPEGCompression:
 888     {
 889       compression=RLECompression;
 890       (void) ThrowMagickException(&image->exception,GetMagickModule(),
 891         MissingDelegateError,"DelegateLibrarySupportNotBuiltIn","`%s' (JPEG)",
 892         image->filename);
 893       break;
 894     }
 895 #endif
 896 #if !defined(MAGICKCORE_ZLIB_DELEGATE)
 897     case ZipCompression:
 898     {
 899       compression=RLECompression;
 900       (void) ThrowMagickException(&image->exception,GetMagickModule(),
 901         MissingDelegateError,"DelegateLibrarySupportNotBuiltIn","`%s' (ZLIB)",
 902         image->filename);
 903       break;
 904     }
 905 #endif
 906     default:
 907       break;
 908   }
 909   (void) ResetMagickMemory(&bounds,0,sizeof(bounds));
 910   page=0;
 911   scene=0;
 912   do
 913   {
 914     /*
 915       Scale relative to dots-per-inch.
 916     */
 917     delta.x=DefaultResolution;
 918     delta.y=DefaultResolution;
 919     resolution.x=image->x_resolution;
 920     resolution.y=image->y_resolution;
 921     if ((resolution.x == 0.0) || (resolution.y == 0.0))
 922       {
 923         flags=ParseGeometry(PSDensityGeometry,&geometry_info);
 924         resolution.x=geometry_info.rho;
 925         resolution.y=geometry_info.sigma;
 926         if ((flags & SigmaValue) == 0)
 927           resolution.y=resolution.x;
 928       }
 929     if (image_info->density != (char *) NULL)
 930       {
 931         flags=ParseGeometry(image_info->density,&geometry_info);
 932         resolution.x=geometry_info.rho;
 933         resolution.y=geometry_info.sigma;
 934         if ((flags & SigmaValue) == 0)
 935           resolution.y=resolution.x;
 936       }
 937     if (image->units == PixelsPerCentimeterResolution)
 938       {
 939         resolution.x=(size_t) (100.0*2.54*resolution.x+0.5)/100.0;
 940         resolution.y=(size_t) (100.0*2.54*resolution.y+0.5)/100.0;
 941       }
 942     SetGeometry(image,&geometry);
 943     (void) FormatLocaleString(page_geometry,MaxTextExtent,"%.20gx%.20g",
 944       (double) image->columns,(double) image->rows);
 945     if (image_info->page != (char *) NULL)
 946       (void) CopyMagickString(page_geometry,image_info->page,MaxTextExtent);
 947     else
 948       if ((image->page.width != 0) && (image->page.height != 0))
 949         (void) FormatLocaleString(page_geometry,MaxTextExtent,
 950           "%.20gx%.20g%+.20g%+.20g",(double) image->page.width,(double)
 951           image->page.height,(double) image->page.x,(double) image->page.y);
 952       else
 953         if ((image->gravity != UndefinedGravity) &&
 954             (LocaleCompare(image_info->magick,"PS") == 0))
 955           (void) CopyMagickString(page_geometry,PSPageGeometry,MaxTextExtent);
 956     (void) ConcatenateMagickString(page_geometry,">",MaxTextExtent);
 957     (void) ParseMetaGeometry(page_geometry,&geometry.x,&geometry.y,
 958       &geometry.width,&geometry.height);
 959     scale.x=(double) (geometry.width*delta.x)/resolution.x;
 960     geometry.width=(size_t) floor(scale.x+0.5);
 961     scale.y=(double) (geometry.height*delta.y)/resolution.y;
 962     geometry.height=(size_t) floor(scale.y+0.5);
 963     (void) ParseAbsoluteGeometry(page_geometry,&media_info);
 964     (void) ParseGravityGeometry(image,page_geometry,&page_info,
 965       &image->exception);
 966     if (image->gravity != UndefinedGravity)
 967       {
 968         geometry.x=(-page_info.x);
 969         geometry.y=(ssize_t) (media_info.height+page_info.y-image->rows);
 970       }
 971     pointsize=12.0;
 972     if (image_info->pointsize != 0.0)
 973       pointsize=image_info->pointsize;
 974     text_size=0;
 975     value=GetImageProperty(image,"label");
 976     if (value != (const char *) NULL)
 977       text_size=(size_t) (MultilineCensus(value)*pointsize+12);
 978     page++;
 979     if (page == 1)
 980       {
 981         /*
 982           Postscript header on the first page.
 983         */
 984         if (LocaleCompare(image_info->magick,"PS3") == 0)
 985           (void) CopyMagickString(buffer,"%!PS-Adobe-3.0\n",MaxTextExtent);
 986         else
 987           (void) CopyMagickString(buffer,"%!PS-Adobe-3.0 EPSF-3.0\n",
 988             MaxTextExtent);
 989         (void) WriteBlobString(image,buffer);
 990         (void) FormatLocaleString(buffer,MaxTextExtent,
 991           "%%%%Creator: ImageMagick %s\n",MagickLibVersionText);
 992         (void) WriteBlobString(image,buffer);
 993         (void) FormatLocaleString(buffer,MaxTextExtent,"%%%%Title: %s\n",
 994           image->filename);
 995         (void) WriteBlobString(image,buffer);
 996         timer=time((time_t *) NULL);
 997         (void) FormatMagickTime(timer,MaxTextExtent,date);
 998         (void) FormatLocaleString(buffer,MaxTextExtent,
 999           "%%%%CreationDate: %s\n",date);
1000         (void) WriteBlobString(image,buffer);
1001         bounds.x1=(double) geometry.x;
1002         bounds.y1=(double) geometry.y;
1003         bounds.x2=(double) geometry.x+scale.x;
1004         bounds.y2=(double) geometry.y+scale.y+text_size;
1005         if ((image_info->adjoin != MagickFalse) &&
1006             (GetNextImageInList(image) != (Image *) NULL))
1007           {
1008             (void) WriteBlobString(image,"%%BoundingBox: (atend)\n");
1009             (void) WriteBlobString(image,"%%HiResBoundingBox: (atend)\n");
1010           }
1011         else
1012           {
1013             (void) FormatLocaleString(buffer,MaxTextExtent,
1014               "%%%%BoundingBox: %g %g %g %g\n",floor(bounds.x1+0.5),
1015               floor(bounds.y1+0.5),ceil(bounds.x2-0.5),ceil(bounds.y2-0.5));
1016             (void) WriteBlobString(image,buffer);
1017             (void) FormatLocaleString(buffer,MaxTextExtent,
1018               "%%%%HiResBoundingBox: %g %g %g %g\n",bounds.x1,
1019               bounds.y1,bounds.x2,bounds.y2);
1020             (void) WriteBlobString(image,buffer);
1021             if (image->colorspace == CMYKColorspace)
1022               (void) WriteBlobString(image,
1023                 "%%DocumentProcessColors: Cyan Magenta Yellow Black\n");
1024             else
1025               if (IsImageGray(image,&image->exception) != MagickFalse)
1026                 (void) WriteBlobString(image,
1027                   "%%DocumentProcessColors: Black\n");
1028           }
1029         /*
1030           Font resources
1031         */
1032         value=GetImageProperty(image,"label");
1033         if (value != (const char *) NULL)
1034           (void) WriteBlobString(image,
1035             "%%DocumentNeededResources: font Helvetica\n");
1036         (void) WriteBlobString(image,"%%LanguageLevel: 3\n");
1037         /*
1038           Pages, orientation and order.
1039         */
1040         if (LocaleCompare(image_info->magick,"PS3") != 0)
1041           (void) WriteBlobString(image,"%%Pages: 1\n");
1042         else
1043           {
1044             (void) WriteBlobString(image,"%%Orientation: Portrait\n");
1045             (void) WriteBlobString(image,"%%PageOrder: Ascend\n");
1046             if (image_info->adjoin == MagickFalse)
1047               (void) CopyMagickString(buffer,"%%Pages: 1\n",MaxTextExtent);
1048             else
1049               (void) FormatLocaleString(buffer,MaxTextExtent,
1050                 "%%%%Pages: %.20g\n",(double) GetImageListLength(image));
1051             (void) WriteBlobString(image,buffer);
1052           }
1053         (void) WriteBlobString(image,"%%EndComments\n");
1054         /*
1055           The static postscript procedures prolog.
1056         */
1057         (void)WriteBlobString(image,"%%BeginProlog\n");
1058         for (q=PostscriptProlog; *q; q++)
1059         {
1060           (void) WriteBlobString(image,*q);
1061           (void) WriteBlobByte(image,'\n');
1062         }
1063         /*
1064           One label line for each line in label string.
1065         */
1066         value=GetImageProperty(image,"label");
1067         if (value != (const char *) NULL)
1068           {
1069               (void) WriteBlobString(image,"\n  %% Labels.\n  /Helvetica "
1070               " findfont pointsize scalefont setfont\n");
1071             for (i=(ssize_t) MultilineCensus(value)-1; i >= 0; i--)
1072             {
1073               (void) WriteBlobString(image,
1074                 "  currentfile buffer readline pop token pop\n");
1075               (void) FormatLocaleString(buffer,MaxTextExtent,
1076                 "  0 y %g add moveto show pop\n",i*pointsize+12);
1077               (void) WriteBlobString(image,buffer);
1078             }
1079           }
1080         /*
1081           The static postscript procedures epilog.
1082         */
1083         for (q=PostscriptEpilog; *q; q++)
1084         {
1085           (void) WriteBlobString(image,*q);
1086           (void) WriteBlobByte(image,'\n');
1087         }
1088         (void)WriteBlobString(image,"%%EndProlog\n");
1089       }
1090     (void) FormatLocaleString(buffer,MaxTextExtent,"%%%%Page: 1 %.20g\n",
1091       (double) page);
1092     (void) WriteBlobString(image,buffer);
1093     /*
1094       Page bounding box.
1095     */
1096     (void) FormatLocaleString(buffer,MaxTextExtent,
1097       "%%%%PageBoundingBox: %.20g %.20g %.20g %.20g\n",(double) geometry.x,
1098        (double) geometry.y,geometry.x+(double) geometry.width,geometry.y+
1099        (double) (geometry.height+text_size));
1100     (void) WriteBlobString(image,buffer);
1101     /*
1102       Page process colors if not RGB.
1103     */
1104     if (image->colorspace == CMYKColorspace)
1105       (void) WriteBlobString(image,
1106         "%%PageProcessColors: Cyan Magenta Yellow Black\n");
1107     else
1108       if (IsImageGray(image,&image->exception) != MagickFalse)
1109         (void) WriteBlobString(image,"%%PageProcessColors: Black\n");
1110     /*
1111       Adjust document bounding box to bound page bounding box.
1112     */
1113     if ((double) geometry.x < bounds.x1)
1114       bounds.x1=(double) geometry.x;
1115     if ((double) geometry.y < bounds.y1)
1116       bounds.y1=(double) geometry.y;
1117     if ((double) (geometry.x+scale.x) > bounds.x2)
1118       bounds.x2=(double) geometry.x+scale.x;
1119     if ((double) (geometry.y+scale.y+text_size) > bounds.y2)
1120       bounds.y2=(double) geometry.y+scale.y+text_size;
1121     /*
1122       Page font resource if there's a label.
1123     */
1124     value=GetImageProperty(image,"label");
1125     if (value != (const char *) NULL)
1126       (void) WriteBlobString(image,"%%PageResources: font Helvetica\n");
1127     /*
1128       PS clipping path from Photoshop clipping path.
1129     */
1130     if ((image->clip_mask == (Image *) NULL) ||
1131         (LocaleNCompare("8BIM:",image->clip_mask->magick_filename,5) != 0))
1132       (void) WriteBlobString(image,"/ClipImage {} def\n");
1133     else
1134       {
1135         const char
1136           *value;
1137
1138         value=GetImageProperty(image,image->clip_mask->magick_filename);
1139         if (value == (const char *) NULL)
1140           return(MagickFalse);
1141         (void) WriteBlobString(image,value);
1142         (void) WriteBlobByte(image,'\n');
1143       }
1144     /*
1145       Push a dictionary for our own def's if this an EPS.
1146     */
1147     if (LocaleCompare(image_info->magick,"PS3") != 0)
1148       (void) WriteBlobString(image,"userdict begin\n");
1149     /*
1150       Image mask.
1151     */
1152     if ((image->matte != MagickFalse) &&
1153         (WritePS3MaskImage(image_info,image,compression) == MagickFalse))
1154       {
1155         (void) CloseBlob(image);
1156         return(MagickFalse);
1157       }
1158     /*
1159       Remember position of BeginData comment so we can update it.
1160     */
1161     start=TellBlob(image);
1162     (void) FormatLocaleString(buffer,MaxTextExtent,
1163       "%%%%BeginData:%13ld %s Bytes\n",0L,
1164       compression == NoCompression ? "ASCII" : "BINARY");
1165     (void) WriteBlobString(image,buffer);
1166     stop=TellBlob(image);
1167     (void) WriteBlobString(image,"DisplayImage\n");
1168     /*
1169       Translate, scale, and font point size.
1170     */
1171     (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n%g %g\n%g\n",
1172       (double) geometry.x,(double) geometry.y,scale.x,scale.y,pointsize);
1173     (void) WriteBlobString(image,buffer);
1174     /*
1175       Output labels.
1176     */
1177     labels=(char **) NULL;
1178     value=GetImageProperty(image,"label");
1179     if (value != (const char *) NULL)
1180       labels=StringToList(value);
1181     if (labels != (char **) NULL)
1182       {
1183         for (i=0; labels[i] != (char *) NULL; i++)
1184         {
1185           if (compression != NoCompression)
1186             {
1187               for (j=0; labels[i][j] != '\0'; j++)
1188                 (void) WriteBlobByte(image,(unsigned char) labels[i][j]);
1189               (void) WriteBlobByte(image,'\n');
1190             }
1191           else
1192             {
1193               (void) WriteBlobString(image,"<~");
1194               Ascii85Initialize(image);
1195               for (j=0; labels[i][j] != '\0'; j++)
1196                 Ascii85Encode(image,(unsigned char) labels[i][j]);
1197               Ascii85Flush(image);
1198             }
1199           labels[i]=DestroyString(labels[i]);
1200         }
1201         labels=(char **) RelinquishMagickMemory(labels);
1202       }
1203     /*
1204       Photoshop clipping path active?
1205     */
1206     if ((image->clip_mask != (Image *) NULL) &&
1207         (LocaleNCompare("8BIM:",image->clip_mask->magick_filename,5) == 0))
1208         (void) WriteBlobString(image,"true\n");
1209       else
1210         (void) WriteBlobString(image,"false\n");
1211     /*
1212       Showpage for non-EPS.
1213     */
1214     (void) WriteBlobString(image, LocaleCompare(image_info->magick,"PS3") == 0 ?
1215       "true\n" : "false\n");
1216     /*
1217       Image columns, rows, and color space.
1218     */
1219     (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n%s\n",
1220       (double) image->columns,(double) image->rows,image->colorspace ==
1221       CMYKColorspace ? PS3_CMYKColorspace : PS3_RGBColorspace);
1222     (void) WriteBlobString(image,buffer);
1223     /*
1224       Masked image?
1225     */
1226     (void) WriteBlobString(image,image->matte != MagickFalse ?
1227       "true\n" : "false\n");
1228     /*
1229       Render with imagemask operator?
1230     */
1231     option=GetImageOption(image_info,"ps3:imagemask");
1232     (void) WriteBlobString(image,((option != (const char *) NULL) &&
1233       (IsImageMonochrome(image,&image->exception) != MagickFalse)) ?
1234       "true\n" : "false\n");
1235     /*
1236       Output pixel data.
1237     */
1238     pixels=(unsigned char *) NULL;
1239     length=0;
1240     if ((image_info->type != TrueColorType) &&
1241         (image_info->type != TrueColorMatteType) &&
1242         (image_info->type != ColorSeparationType) &&
1243         (image_info->type != ColorSeparationMatteType) &&
1244         (image->colorspace != CMYKColorspace) &&
1245         ((IsImageGray(image,&image->exception) != MagickFalse) ||
1246          (IsImageMonochrome(image,&image->exception) != MagickFalse)))
1247       {
1248         /*
1249           Gray images.
1250         */
1251         (void) WriteBlobString(image,PS3_PseudoClass"\n");
1252         switch (compression)
1253         {
1254           case NoCompression:
1255           default:
1256           {
1257             (void) WriteBlobString(image,PS3_NoCompression"\n");
1258             break;
1259           }
1260           case FaxCompression:
1261           case Group4Compression:
1262           {
1263             (void) WriteBlobString(image,PS3_FaxCompression"\n");
1264             break;
1265           }
1266           case JPEGCompression:
1267           {
1268             (void) WriteBlobString(image,PS3_JPEGCompression"\n");
1269             break;
1270           }
1271           case LZWCompression:
1272           {
1273             (void) WriteBlobString(image,PS3_LZWCompression"\n");
1274             break;
1275           }
1276           case RLECompression:
1277           {
1278             (void) WriteBlobString(image,PS3_RLECompression"\n");
1279             break;
1280           }
1281           case ZipCompression:
1282           {
1283             (void) WriteBlobString(image,PS3_ZipCompression"\n");
1284             break;
1285           }
1286         }
1287         /*
1288           Number of colors -- 0 for single component non-color mapped data.
1289         */
1290         (void) WriteBlobString(image,"0\n");
1291         /*
1292           1 bit or 8 bit components?
1293         */
1294         (void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
1295           IsImageMonochrome(image,&image->exception) != MagickFalse ? 1 : 8);
1296         (void) WriteBlobString(image,buffer);
1297         /*
1298           Image data.
1299         */
1300         if (compression == JPEGCompression)
1301           status=InjectImageBlob(image_info,image,image,"jpeg",
1302             &image->exception);
1303         else
1304           if ((compression == FaxCompression) ||
1305               (compression == Group4Compression))
1306             {
1307               if (LocaleCompare(CCITTParam,"0") == 0)
1308                 status=HuffmanEncodeImage(image_info,image,image);
1309               else
1310                 status=Huffman2DEncodeImage(image_info,image,image);
1311             }
1312           else
1313             {
1314               status=SerializeImageChannel(image_info,image,&pixels,&length);
1315               if (status == MagickFalse)
1316                 {
1317                   (void) CloseBlob(image);
1318                   return(MagickFalse);
1319                 }
1320               switch (compression)
1321               {
1322                 case NoCompression:
1323                 default:
1324                 {
1325                   Ascii85Initialize(image);
1326                   for (i=0; i < (ssize_t) length; i++)
1327                     Ascii85Encode(image,pixels[i]);
1328                   Ascii85Flush(image);
1329                   status=MagickTrue;
1330                   break;
1331                 }
1332                 case LZWCompression:
1333                 {
1334                   status=LZWEncodeImage(image,length,pixels);
1335                   break;
1336                 }
1337                 case RLECompression:
1338                 {
1339                   status=PackbitsEncodeImage(image,length,pixels);
1340                   break;
1341                 }
1342                 case ZipCompression:
1343                 {
1344                   status=ZLIBEncodeImage(image,length,pixels);
1345                   break;
1346                 }
1347               }
1348               pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1349             }
1350       }
1351     else
1352       if ((image->storage_class == DirectClass) || (image->colors > 256) ||
1353           (compression == JPEGCompression))
1354         {
1355           /*
1356             Truecolor image.
1357           */
1358           (void) WriteBlobString(image,PS3_DirectClass"\n");
1359           switch (compression)
1360           {
1361             case NoCompression:
1362             default:
1363             {
1364               (void) WriteBlobString(image,PS3_NoCompression"\n");
1365               break;
1366             }
1367             case RLECompression:
1368             {
1369               (void) WriteBlobString(image,PS3_RLECompression"\n");
1370               break;
1371             }
1372             case JPEGCompression:
1373             {
1374               (void) WriteBlobString(image,PS3_JPEGCompression"\n");
1375               break;
1376             }
1377             case LZWCompression:
1378             {
1379               (void) WriteBlobString(image,PS3_LZWCompression"\n");
1380               break;
1381             }
1382             case ZipCompression:
1383             {
1384               (void) WriteBlobString(image,PS3_ZipCompression"\n");
1385               break;
1386             }
1387           }
1388           /*
1389             Image data.
1390           */
1391           if (compression == JPEGCompression)
1392             status=InjectImageBlob(image_info,image,image,"jpeg",
1393               &image->exception);
1394           else
1395             {
1396               /*
1397                 Stream based compressions.
1398               */
1399               status=SerializeImage(image_info,image,&pixels,&length);
1400               if (status == MagickFalse)
1401                 {
1402                   (void) CloseBlob(image);
1403                   return(MagickFalse);
1404                 }
1405               switch (compression)
1406               {
1407                 case NoCompression:
1408                 default:
1409                 {
1410                   Ascii85Initialize(image);
1411                   for (i=0; i < (ssize_t) length; i++)
1412                     Ascii85Encode(image,pixels[i]);
1413                   Ascii85Flush(image);
1414                   status=MagickTrue;
1415                   break;
1416                 }
1417                 case RLECompression:
1418                 {
1419                   status=PackbitsEncodeImage(image,length,pixels);
1420                   break;
1421                 }
1422                 case LZWCompression:
1423                 {
1424                   status=LZWEncodeImage(image,length,pixels);
1425                   break;
1426                 }
1427                 case ZipCompression:
1428                 {
1429                   status=ZLIBEncodeImage(image,length,pixels);
1430                   break;
1431                 }
1432               }
1433               pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1434             }
1435           }
1436         else
1437           {
1438             /*
1439               Colormapped images.
1440             */
1441             (void) WriteBlobString(image,PS3_PseudoClass"\n");
1442             switch (compression)
1443             {
1444               case NoCompression:
1445               default:
1446               {
1447                 (void) WriteBlobString(image,PS3_NoCompression"\n");
1448                 break;
1449               }
1450               case JPEGCompression:
1451               {
1452                 (void) WriteBlobString(image,PS3_JPEGCompression"\n");
1453                 break;
1454               }
1455               case RLECompression:
1456               {
1457                 (void) WriteBlobString(image,PS3_RLECompression"\n");
1458                 break;
1459               }
1460               case LZWCompression:
1461               {
1462                 (void) WriteBlobString(image,PS3_LZWCompression"\n");
1463                 break;
1464               }
1465               case ZipCompression:
1466               {
1467                 (void) WriteBlobString(image,PS3_ZipCompression"\n");
1468                 break;
1469               }
1470             }
1471             /*
1472               Number of colors in color map.
1473             */
1474             (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g\n",
1475               (double) image->colors);
1476             (void) WriteBlobString(image,buffer);
1477             /*
1478               Color map - uncompressed.
1479             */
1480             if ((compression != NoCompression) &&
1481                 (compression != UndefinedCompression))
1482               {
1483                 for (i=0; i < (ssize_t) image->colors; i++)
1484                 {
1485                   pixel=ScaleQuantumToChar(image->colormap[i].red);
1486                   (void) WriteBlobByte(image,(unsigned char) pixel);
1487                   pixel=ScaleQuantumToChar(image->colormap[i].green);
1488                   (void) WriteBlobByte(image,(unsigned char) pixel);
1489                   pixel=ScaleQuantumToChar(image->colormap[i].blue);
1490                   (void) WriteBlobByte(image,(unsigned char) pixel);
1491                 }
1492               }
1493             else
1494               {
1495                 Ascii85Initialize(image);
1496                 for (i=0; i < (ssize_t) image->colors; i++)
1497                 {
1498                   pixel=ScaleQuantumToChar(image->colormap[i].red);
1499                   Ascii85Encode(image,(unsigned char) pixel);
1500                   pixel=ScaleQuantumToChar(image->colormap[i].green);
1501                   Ascii85Encode(image,(unsigned char) pixel);
1502                   pixel=ScaleQuantumToChar(image->colormap[i].blue);
1503                   Ascii85Encode(image,(unsigned char) pixel);
1504                 }
1505                 Ascii85Flush(image);
1506               }
1507             status=SerializeImageIndexes(image_info,image,&pixels,&length);
1508             if (status == MagickFalse)
1509               {
1510                 (void) CloseBlob(image);
1511                 return(MagickFalse);
1512               }
1513             switch (compression)
1514             {
1515               case NoCompression:
1516               default:
1517               {
1518                 Ascii85Initialize(image);
1519                 for (i=0; i < (ssize_t) length; i++)
1520                   Ascii85Encode(image,pixels[i]);
1521                 Ascii85Flush(image);
1522                 status=MagickTrue;
1523                 break;
1524               }
1525               case JPEGCompression:
1526               {
1527                 status=InjectImageBlob(image_info,image,image,"jpeg",
1528                   &image->exception);
1529                 break;
1530               }
1531               case RLECompression:
1532               {
1533                 status=PackbitsEncodeImage(image,length,pixels);
1534                 break;
1535               }
1536               case LZWCompression:
1537               {
1538                 status=LZWEncodeImage(image,length,pixels);
1539                 break;
1540               }
1541               case ZipCompression:
1542               {
1543                 status=ZLIBEncodeImage(image,length,pixels);
1544                 break;
1545               }
1546             }
1547             pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1548           }
1549     (void) WriteBlobByte(image,'\n');
1550     if (status == MagickFalse)
1551       {
1552         (void) CloseBlob(image);
1553         return(MagickFalse);
1554       }
1555     /*
1556       Update BeginData now that we know the data size.
1557     */
1558     length=(size_t) (TellBlob(image)-stop);
1559     stop=TellBlob(image);
1560     offset=SeekBlob(image,start,SEEK_SET);
1561     if (offset < 0)
1562       ThrowWriterException(CorruptImageError,"ImproperImageHeader");
1563     (void) FormatLocaleString(buffer,MaxTextExtent,
1564       "%%%%BeginData:%13ld %s Bytes\n",(long) length,
1565       compression == NoCompression ? "ASCII" : "BINARY");
1566     (void) WriteBlobString(image,buffer);
1567     offset=SeekBlob(image,stop,SEEK_SET);
1568     (void) WriteBlobString(image,"%%EndData\n");
1569     /*
1570       End private dictionary if this an EPS.
1571     */
1572     if (LocaleCompare(image_info->magick,"PS3") != 0)
1573       (void) WriteBlobString(image,"end\n");
1574     (void) WriteBlobString(image,"%%PageTrailer\n");
1575     if (GetNextImageInList(image) == (Image *) NULL)
1576       break;
1577     image=SyncNextImageInList(image);
1578     status=SetImageProgress(image,SaveImagesTag,scene++,
1579       GetImageListLength(image));
1580     if (status == MagickFalse)
1581       break;
1582   } while (image_info->adjoin != MagickFalse);
1583   (void) WriteBlobString(image,"%%Trailer\n");
1584   if (page > 1)
1585     {
1586       (void) FormatLocaleString(buffer,MaxTextExtent,
1587         "%%%%BoundingBox: %g %g %g %g\n",floor(bounds.x1+0.5),
1588         floor(bounds.y1+0.5),ceil(bounds.x2-0.5),ceil(bounds.y2-0.5));
1589       (void) WriteBlobString(image,buffer);
1590       (void) FormatLocaleString(buffer,MaxTextExtent,
1591         "%%%%HiResBoundingBox: %g %g %g %g\n",bounds.x1,bounds.y1,
1592         bounds.x2,bounds.y2);
1593       (void) WriteBlobString(image,buffer);
1594     }
1595   (void) WriteBlobString(image,"%%EOF\n");
1596   (void) CloseBlob(image);
1597   return(MagickTrue);
1598 }