2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
13 % Read Windows Metafile Format %
20 % Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % http://www.imagemagick.org/script/license.php %
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. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
40 #include "magick/studio.h"
41 #include "magick/property.h"
42 #include "magick/blob.h"
43 #include "magick/blob-private.h"
44 #include "magick/color.h"
45 #include "magick/color-private.h"
46 #include "magick/constitute.h"
47 #include "magick/exception.h"
48 #include "magick/exception-private.h"
49 #include "magick/image.h"
50 #include "magick/image-private.h"
51 #include "magick/list.h"
52 #include "magick/log.h"
53 #include "magick/magick.h"
54 #include "magick/memory_.h"
55 #include "magick/monitor.h"
56 #include "magick/monitor-private.h"
57 #include "magick/paint.h"
58 #include "magick/quantum-private.h"
59 #include "magick/static.h"
60 #include "magick/string_.h"
61 #include "magick/module.h"
62 #include "magick/type.h"
63 #include "magick/module.h"
64 #include "wand/MagickWand.h"
66 #if defined(MAGICKCORE_WMF_DELEGATE)
67 #include "libwmf/api.h"
68 #include "libwmf/eps.h"
71 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
75 % R e a d W M F I m a g e %
79 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
81 % ReadWMFImage() reads an Windows Metafile image file and returns it. It
82 % allocates the memory necessary for the new Image structure and returns a
83 % pointer to the new image.
85 % The format of the ReadWMFImage method is:
87 % Image *ReadWMFImage(const ImageInfo *image_info,ExceptionInfo *exception)
89 % A description of each parameter follows:
91 % o image_info: the image info.
93 % o exception: return any errors or warnings in this structure.
97 static int WMFReadBlob(void *image)
99 return(ReadBlobByte((Image *) image));
102 static int WMFSeekBlob(void *image,long offset)
104 return((int) SeekBlob((Image *) image,(MagickOffsetType) offset,SEEK_SET));
107 static long WMFTellBlob(void *image)
109 return((long) TellBlob((Image*) image));
112 static Image *ReadWMFImage(const ImageInfo *image_info,ExceptionInfo *exception)
115 filename[MaxTextExtent];
150 image=AcquireImage(image_info);
151 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
152 if (status == MagickFalse)
154 image=DestroyImageList(image);
155 return((Image *) NULL);
157 wmf_info=(wmfAPI *) NULL;
159 flags|=WMF_OPT_IGNORE_NONFATAL;
160 flags|=WMF_OPT_FUNCTION;
161 options.function=wmf_eps_function;
162 status=wmf_api_create(&wmf_info,flags,&options);
163 if (status != wmf_E_None)
165 if (wmf_info != (wmfAPI *) NULL)
166 wmf_api_destroy(wmf_info);
167 ThrowReaderException(DelegateError,"UnableToInitializeWMFLibrary");
169 status=wmf_bbuf_input(wmf_info,WMFReadBlob,WMFSeekBlob,WMFTellBlob,
171 if (status != wmf_E_None)
173 wmf_api_destroy(wmf_info);
174 ThrowFileException(exception,FileOpenError,"UnableToOpenFile",
176 image=DestroyImageList(image);
177 return((Image *) NULL);
179 status=wmf_scan(wmf_info,0,&bounding_box);
180 if (status != wmf_E_None)
182 wmf_api_destroy(wmf_info);
183 ThrowReaderException(DelegateError,"FailedToScanFile");
185 eps_info=WMF_EPS_GetData(wmf_info);
187 unique_file=AcquireUniqueFileResource(filename);
188 if (unique_file != -1)
189 file=fdopen(unique_file,"wb");
190 if ((unique_file == -1) || (file == (FILE *) NULL))
192 wmf_api_destroy(wmf_info);
193 ThrowReaderException(FileOpenError,"UnableToCreateTemporaryFile");
195 eps_info->out=wmf_stream_create(wmf_info,file);
196 eps_info->bbox=bounding_box;
197 status=wmf_play(wmf_info,0,&bounding_box);
198 if (status != wmf_E_None)
200 wmf_api_destroy(wmf_info);
201 ThrowReaderException(DelegateError,"FailedToRenderFile");
204 wmf_api_destroy(wmf_info);
205 (void) CloseBlob(image);
206 image=DestroyImage(image);
210 read_info=CloneImageInfo(image_info);
211 (void) FormatMagickString(read_info->filename,MaxTextExtent,"eps:%.1024s",
213 image=ReadImage(read_info,exception);
214 read_info=DestroyImageInfo(read_info);
215 if (image != (Image *) NULL)
217 (void) CopyMagickString(image->filename,image_info->filename,
219 (void) CopyMagickString(image->magick_filename,image_info->filename,
221 (void) CopyMagickString(image->magick,"WMF",MaxTextExtent);
223 (void) RelinquishUniqueFileResource(filename);
224 return(GetFirstImageInList(image));
229 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
233 % R e g i s t e r W M F I m a g e %
237 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
239 % RegisterWMFImage() adds attributes for the WMF image format to
240 % the list of supported formats. The attributes include the image format
241 % tag, a method to read and/or write the format, whether the format
242 % supports the saving of more than one frame to the same file or blob,
243 % whether the format supports native in-memory I/O, and a brief
244 % description of the format.
246 % The format of the RegisterWMFImage method is:
248 % unsigned long RegisterWMFImage(void)
251 ModuleExport unsigned long RegisterWMFImage(void)
256 entry = SetMagickInfo("WMZ");
257 #if defined(MAGICKCORE_WMF_DELEGATE)
258 entry->decoder=ReadWMFImage;
260 entry->description=ConstantString("Compressed Windows Meta File");
261 entry->module=ConstantString("WMZ");
262 (void) RegisterMagickInfo(entry);
263 entry=SetMagickInfo("WMF");
264 #if defined(MAGICKCORE_WMF_DELEGATE)
265 entry->decoder=ReadWMFImage;
267 entry->description=ConstantString("Windows Meta File");
268 entry->module=ConstantString("WMF");
269 (void) RegisterMagickInfo(entry);
270 return(MagickImageCoderSignature);
274 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
278 % U n r e g i s t e r W M F I m a g e %
282 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
284 % UnregisterWMFImage() removes format registrations made by the
285 % WMF module from the list of supported formats.
287 % The format of the UnregisterWMFImage method is:
289 % UnregisterWMFImage(void)
292 ModuleExport void UnregisterWMFImage(void)
294 (void) UnregisterMagickInfo("WMZ");
295 (void) UnregisterMagickInfo("WMF");