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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 }