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

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                            X   X  PPPP   SSSSS                              %
   7 %                             X X   P   P  SS                                 %
   8 %                              X    PPPP    SSS                               %
   9 %                             X X   P         SS                              %
  10 %                            X   X  P      SSSSS                              %
  11 %                                                                             %
  12 %                                                                             %
  13 %             Read/Write Microsoft XML Paper Specification Format             %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John Cristy                                  %
  17 %                               January 2008                                  %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2010 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 "magick/studio.h"
  43 #include "magick/property.h"
  44 #include "magick/blob.h"
  45 #include "magick/blob-private.h"
  46 #include "magick/color.h"
  47 #include "magick/color-private.h"
  48 #include "magick/colorspace.h"
  49 #include "magick/constitute.h"
  50 #include "magick/delegate.h"
  51 #include "magick/draw.h"
  52 #include "magick/exception.h"
  53 #include "magick/exception-private.h"
  54 #include "magick/geometry.h"
  55 #include "magick/image.h"
  56 #include "magick/image-private.h"
  57 #include "magick/list.h"
  58 #include "magick/magick.h"
  59 #include "magick/memory_.h"
  60 #include "magick/monitor.h"
  61 #include "magick/monitor-private.h"
  62 #include "magick/profile.h"
  63 #include "magick/resource_.h"
  64 #include "magick/quantum-private.h"
  65 #include "magick/static.h"
  66 #include "magick/string_.h"
  67 #include "magick/module.h"
  68 #include "magick/token.h"
  69 #include "magick/transform.h"
  70 #include "magick/utility.h"
  71 \f
  72 /*
  73 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  74 %                                                                             %
  75 %                                                                             %
  76 %                                                                             %
  77 %   R e a d X P S I m a g e                                                   %
  78 %                                                                             %
  79 %                                                                             %
  80 %                                                                             %
  81 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  82 %
  83 %  ReadXPSImage() reads a Printer Control Language image file and returns it.
  84 %  It allocates the memory necessary for the new Image structure and returns a
  85 %  pointer to the new image.
  86 %
  87 %  The format of the ReadXPSImage method is:
  88 %
  89 %      Image *ReadXPSImage(const ImageInfo *image_info,ExceptionInfo *exception)
  90 %
  91 %  A description of each parameter follows:
  92 %
  93 %    o image_info: the image info.
  94 %
  95 %    o exception: return any errors or warnings in this structure.
  96 %
  97 */
  98 static Image *ReadXPSImage(const ImageInfo *image_info,ExceptionInfo *exception)
  99 {
 100 #define CropBox  "CropBox"
 101 #define DeviceCMYK  "DeviceCMYK"
 102 #define MediaBox  "MediaBox"
 103 #define RenderXPSText  "  Rendering XPS...  "
 104
 105   char
 106     command[MaxTextExtent],
 107     density[MaxTextExtent],
 108     filename[MaxTextExtent],
 109     geometry[MaxTextExtent],
 110     options[MaxTextExtent],
 111     input_filename[MaxTextExtent];
 112
 113   const DelegateInfo
 114     *delegate_info;
 115
 116   Image
 117     *image,
 118     *next_image;
 119
 120   ImageInfo
 121     *read_info;
 122
 123   MagickBooleanType
 124     cmyk,
 125     status;
 126
 127   PointInfo
 128     delta;
 129
 130   RectangleInfo
 131     bounding_box,
 132     page;
 133
 134   register char
 135     *p;
 136
 137   register long
 138     c;
 139
 140   SegmentInfo
 141     bounds;
 142
 143   ssize_t
 144     count;
 145
 146   unsigned long
 147     height,
 148     width;
 149
 150   assert(image_info != (const ImageInfo *) NULL);
 151   assert(image_info->signature == MagickSignature);
 152   if (image_info->debug != MagickFalse)
 153     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 154       image_info->filename);
 155   assert(exception != (ExceptionInfo *) NULL);
 156   assert(exception->signature == MagickSignature);
 157   /*
 158     Open image file.
 159   */
 160   image=AcquireImage(image_info);
 161   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 162   if (status == MagickFalse)
 163     {
 164       image=DestroyImageList(image);
 165       return((Image *) NULL);
 166     }
 167   status=AcquireUniqueSymbolicLink(image_info->filename,input_filename);
 168   if (status == MagickFalse)
 169     {
 170       ThrowFileException(exception,FileOpenError,"UnableToCreateTemporaryFile",
 171         image_info->filename);
 172       image=DestroyImageList(image);
 173       return((Image *) NULL);
 174     }
 175   /*
 176     Set the page density.
 177   */
 178   delta.x=DefaultResolution;
 179   delta.y=DefaultResolution;
 180   if ((image->x_resolution == 0.0) || (image->y_resolution == 0.0))
 181     {
 182       GeometryInfo
 183         geometry_info;
 184
 185       MagickStatusType
 186         flags;
 187
 188       flags=ParseGeometry(PSDensityGeometry,&geometry_info);
 189       image->x_resolution=geometry_info.rho;
 190       image->y_resolution=geometry_info.sigma;
 191       if ((flags & SigmaValue) == 0)
 192         image->y_resolution=image->x_resolution;
 193     }
 194   (void) FormatMagickString(density,MaxTextExtent,"%gx%g",
 195     image->x_resolution,image->y_resolution);
 196   /*
 197     Determine page geometry from the XPS media box.
 198   */
 199   cmyk=image->colorspace == CMYKColorspace ? MagickTrue : MagickFalse;
 200   count=0;
 201   (void) ResetMagickMemory(&bounding_box,0,sizeof(bounding_box));
 202   (void) ResetMagickMemory(&bounds,0,sizeof(bounds));
 203   (void) ResetMagickMemory(&page,0,sizeof(page));
 204   (void) ResetMagickMemory(command,0,sizeof(command));
 205   p=command;
 206   for (c=ReadBlobByte(image); c != EOF; c=ReadBlobByte(image))
 207   {
 208     if (image_info->page != (char *) NULL)
 209       continue;
 210     /*
 211       Note XPS elements.
 212     */
 213     *p++=(char) c;
 214     if ((c != (int) '/') && (c != '\n') &&
 215         ((size_t) (p-command) < (MaxTextExtent-1)))
 216       continue;
 217     *p='\0';
 218     p=command;
 219     /*
 220       Is this a CMYK document?
 221     */
 222     if (LocaleNCompare(DeviceCMYK,command,strlen(DeviceCMYK)) == 0)
 223       cmyk=MagickTrue;
 224     if (LocaleNCompare(CropBox,command,strlen(CropBox)) == 0)
 225       {
 226         /*
 227           Note region defined by crop box.
 228         */
 229         count=(ssize_t) sscanf(command,"CropBox [%lf %lf %lf %lf",
 230           &bounds.x1,&bounds.y1,&bounds.x2,&bounds.y2);
 231         if (count != 4)
 232           count=(ssize_t) sscanf(command,"CropBox[%lf %lf %lf %lf",
 233             &bounds.x1,&bounds.y1,&bounds.x2,&bounds.y2);
 234       }
 235     if (LocaleNCompare(MediaBox,command,strlen(MediaBox)) == 0)
 236       {
 237         /*
 238           Note region defined by media box.
 239         */
 240         count=(ssize_t) sscanf(command,"MediaBox [%lf %lf %lf %lf",
 241           &bounds.x1,&bounds.y1,&bounds.x2,&bounds.y2);
 242         if (count != 4)
 243           count=(ssize_t) sscanf(command,"MediaBox[%lf %lf %lf %lf",
 244             &bounds.x1,&bounds.y1,&bounds.x2,&bounds.y2);
 245       }
 246     if (count != 4)
 247       continue;
 248     /*
 249       Set XPS render geometry.
 250     */
 251     width=(unsigned long) floor(bounds.x2-bounds.x1+0.5);
 252     height=(unsigned long) floor(bounds.y2-bounds.y1+0.5);
 253     if (width > page.width)
 254       page.width=width;
 255     if (height > page.height)
 256       page.height=height;
 257   }
 258   (void) CloseBlob(image);
 259   /*
 260     Render XPS with the GhostXPS delegate.
 261   */
 262   if ((page.width == 0) || (page.height == 0))
 263     (void) ParseAbsoluteGeometry(PSPageGeometry,&page);
 264   if (image_info->page != (char *) NULL)
 265     (void) ParseAbsoluteGeometry(image_info->page,&page);
 266   (void) FormatMagickString(geometry,MaxTextExtent,"%lux%lu",
 267     page.width,page.height);
 268   if (image_info->monochrome != MagickFalse)
 269     delegate_info=GetDelegateInfo("xps:mono",(char *) NULL,exception);
 270   else
 271      if (cmyk != MagickFalse)
 272        delegate_info=GetDelegateInfo("xps:cmyk",(char *) NULL,exception);
 273      else
 274        delegate_info=GetDelegateInfo("xps:color",(char *) NULL,exception);
 275   if (delegate_info == (const DelegateInfo *) NULL)
 276     return((Image *) NULL);
 277   *options='\0';
 278   if ((page.width == 0) || (page.height == 0))
 279     (void) ParseAbsoluteGeometry(PSPageGeometry,&page);
 280   if (image_info->page != (char *) NULL)
 281     (void) ParseAbsoluteGeometry(image_info->page,&page);
 282   page.width=(unsigned long) floor(page.width*image->y_resolution/delta.x+0.5);
 283   page.height=(unsigned long) floor(page.height*image->y_resolution/delta.y+
 284     0.5);
 285   (void) FormatMagickString(options,MaxTextExtent,"-g%lux%lu ",
 286     page.width,page.height);
 287   image=DestroyImage(image);
 288   read_info=CloneImageInfo(image_info);
 289   *read_info->magick='\0';
 290   if (read_info->number_scenes != 0)
 291     {
 292       if (read_info->number_scenes != 1)
 293         (void) FormatMagickString(options,MaxTextExtent,"-dLastPage=%lu",
 294           read_info->scene+read_info->number_scenes);
 295       else
 296         (void) FormatMagickString(options,MaxTextExtent,
 297           "-dFirstPage=%lu -dLastPage=%lu",read_info->scene+1,read_info->scene+
 298           read_info->number_scenes);
 299       read_info->number_scenes=0;
 300       if (read_info->scenes != (char *) NULL)
 301         *read_info->scenes='\0';
 302     }
 303   if (read_info->authenticate != (char *) NULL)
 304     (void) FormatMagickString(options+strlen(options),MaxTextExtent,
 305       " -sXPSPassword=%s",read_info->authenticate);
 306   (void) CopyMagickString(filename,read_info->filename,MaxTextExtent);
 307   (void) AcquireUniqueFilename(read_info->filename);
 308   (void) FormatMagickString(command,MaxTextExtent,
 309     GetDelegateCommands(delegate_info),
 310     read_info->antialias != MagickFalse ? 4 : 1,
 311     read_info->antialias != MagickFalse ? 4 : 1,density,options,
 312     read_info->filename,input_filename);
 313   status=SystemCommand(MagickFalse,read_info->verbose,command,exception) != 0 ?
 314     MagickTrue : MagickFalse;
 315   image=ReadImage(read_info,exception);
 316   (void) RelinquishUniqueFileResource(read_info->filename);
 317   (void) RelinquishUniqueFileResource(input_filename);
 318   read_info=DestroyImageInfo(read_info);
 319   if (image == (Image *) NULL)
 320     ThrowReaderException(DelegateError,"XPSDelegateFailed");
 321   if (LocaleCompare(image->magick,"BMP") == 0)
 322     {
 323       Image
 324         *cmyk_image;
 325
 326       cmyk_image=ConsolidateCMYKImages(image,&image->exception);
 327       if (cmyk_image != (Image *) NULL)
 328         {
 329           image=DestroyImageList(image);
 330           image=cmyk_image;
 331         }
 332     }
 333   do
 334   {
 335     (void) CopyMagickString(image->filename,filename,MaxTextExtent);
 336     image->page=page;
 337     next_image=SyncNextImageInList(image);
 338     if (next_image != (Image *) NULL)
 339       image=next_image;
 340   } while (next_image != (Image *) NULL);
 341   return(GetFirstImageInList(image));
 342 }
 343 \f
 344 /*
 345 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 346 %                                                                             %
 347 %                                                                             %
 348 %                                                                             %
 349 %   R e g i s t e r X P S I m a g e                                           %
 350 %                                                                             %
 351 %                                                                             %
 352 %                                                                             %
 353 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 354 %
 355 %  RegisterXPSImage() adds attributes for the Microsoft XML Paper Specification
 356 %  format to the list of supported formats.  The attributes include the image
 357 %  format tag, a method to read and/or write the format, whether the format
 358 %  supports the saving of more than one frame to the same file or blob,
 359 %  whether the format supports native in-memory I/O, and a brief
 360 %  description of the format.
 361 %
 362 %  The format of the RegisterXPSImage method is:
 363 %
 364 %      unsigned long RegisterXPSImage(void)
 365 %
 366 */
 367 ModuleExport unsigned long RegisterXPSImage(void)
 368 {
 369   MagickInfo
 370     *entry;
 371
 372   entry=SetMagickInfo("XPS");
 373   entry->decoder=(DecodeImageHandler *) ReadXPSImage;
 374   entry->adjoin=MagickFalse;
 375   entry->blob_support=MagickFalse;
 376   entry->seekable_stream=MagickTrue;
 377   entry->thread_support=EncoderThreadSupport;
 378   entry->description=ConstantString("Microsoft XML Paper Specification");
 379   entry->module=ConstantString("XPS");
 380   (void) RegisterMagickInfo(entry);
 381   return(MagickImageCoderSignature);
 382 }
 383 \f
 384 /*
 385 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 386 %                                                                             %
 387 %                                                                             %
 388 %                                                                             %
 389 %   U n r e g i s t e r X P S I m a g e                                       %
 390 %                                                                             %
 391 %                                                                             %
 392 %                                                                             %
 393 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 394 %
 395 %  UnregisterXPSImage() removes format registrations made by the XPS module
 396 %  from the list of supported formats.
 397 %
 398 %  The format of the UnregisterXPSImage method is:
 399 %
 400 %      UnregisterXPSImage(void)
 401 %
 402 */
 403 ModuleExport void UnregisterXPSImage(void)
 404 {
 405   (void) UnregisterMagickInfo("XPS");
 406 }