/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W W M M FFFFF % % W W MM MM F % % W W W M M M FFF % % WW WW M M F % % W W M M F % % % % % % Read Windows Metafile Format % % % % Software Design % % John Cristy % % December 2000 % % % % % % Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization % % dedicated to making software imaging solutions freely available. % % % % You may not use this file except in compliance with the License. You may % % obtain a copy of the License at % % % % http://www.imagemagick.org/script/license.php % % % % Unless required by applicable law or agreed to in writing, software % % distributed under the License is distributed on an "AS IS" BASIS, % % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % % See the License for the specific language governing permissions and % % limitations under the License. % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% */ /* Include declarations. */ #include "magick/studio.h" #include "magick/property.h" #include "magick/blob.h" #include "magick/blob-private.h" #include "magick/color.h" #include "magick/color-private.h" #include "magick/constitute.h" #include "magick/exception.h" #include "magick/exception-private.h" #include "magick/image.h" #include "magick/image-private.h" #include "magick/list.h" #include "magick/log.h" #include "magick/magick.h" #include "magick/memory_.h" #include "magick/monitor.h" #include "magick/monitor-private.h" #include "magick/paint.h" #include "magick/quantum-private.h" #include "magick/static.h" #include "magick/string_.h" #include "magick/module.h" #include "magick/type.h" #include "magick/module.h" #include "wand/MagickWand.h" #if defined(MAGICKCORE_WMF_DELEGATE) #include "libwmf/api.h" #include "libwmf/gd.h" /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d W M F I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadWMFImage() reads an Windows Metafile image file and returns it. It % allocates the memory necessary for the new Image structure and returns a % pointer to the new image. % % The format of the ReadWMFImage method is: % % Image *ReadWMFImage(const ImageInfo *image_info,ExceptionInfo *exception) % % A description of each parameter follows: % % o image_info: the image info. % % o exception: return any errors or warnings in this structure. % */ static int WMFReadBlob(void *image) { return(ReadBlobByte((Image *) image)); } static int WMFSeekBlob(void *image,long offset) { return((int) SeekBlob((Image *) image,(MagickOffsetType) offset,SEEK_SET)); } static long WMFTellBlob(void *image) { return((long) TellBlob((Image*) image)); } static Image *ReadWMFImage(const ImageInfo *image_info,ExceptionInfo *exception) { char filename[MaxTextExtent]; int unique_file; FILE *file; Image *image; ImageInfo *read_info; unsigned long flags; wmfAPI *wmf_info; wmfAPI_Options options; wmfD_Rect bounding_box; wmf_gd_t *gd_info; wmf_error_t status; /* Read WMF image. */ image=AcquireImage(image_info); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) { image=DestroyImageList(image); return((Image *) NULL); } wmf_info=(wmfAPI *) NULL; flags=0; flags|=WMF_OPT_IGNORE_NONFATAL; flags|=WMF_OPT_FUNCTION; options.function=wmf_gd_function; status=wmf_api_create(&wmf_info,flags,&options); if (status != wmf_E_None) { if (wmf_info != (wmfAPI *) NULL) wmf_api_destroy(wmf_info); ThrowReaderException(DelegateError,"UnableToInitializeWMFLibrary"); } status=wmf_bbuf_input(wmf_info,WMFReadBlob,WMFSeekBlob,WMFTellBlob, (void *) image); if (status != wmf_E_None) { wmf_api_destroy(wmf_info); ThrowFileException(exception,FileOpenError,"UnableToOpenFile", image->filename); image=DestroyImageList(image); return((Image *) NULL); } status=wmf_scan(wmf_info,0,&bounding_box); if (status != wmf_E_None) { wmf_api_destroy(wmf_info); ThrowReaderException(DelegateError,"FailedToScanFile"); } gd_info=WMF_GD_GetData(wmf_info); file=(FILE *) NULL; unique_file=AcquireUniqueFileResource(filename); if (unique_file != -1) file=fdopen(unique_file,"wb"); if ((unique_file == -1) || (file == (FILE *) NULL)) { wmf_api_destroy(wmf_info); ThrowReaderException(FileOpenError,"UnableToCreateTemporaryFile"); } gd_info->flags|=WMF_GD_OUTPUT_FILE; gd_info->file=file; gd_info->bbox=bounding_box; wmf_display_size(wmf_info,&gd_info->width,&gd_info->height, ceil(image->x_resolution-0.5),ceil(image->y_resolution-0.5)); status=wmf_play(wmf_info,0,&bounding_box); if (status != wmf_E_None) { wmf_api_destroy(wmf_info); ThrowReaderException(DelegateError,"FailedToRenderFile"); } (void) fclose(file); wmf_api_destroy(wmf_info); (void) CloseBlob(image); image=DestroyImage(image); /* Read GD image. */ read_info=CloneImageInfo(image_info); (void) FormatMagickString(read_info->filename,MaxTextExtent,"png:%.1024s", filename); image=ReadImage(read_info,exception); read_info=DestroyImageInfo(read_info); if (image != (Image *) NULL) { (void) CopyMagickString(image->filename,image_info->filename, MaxTextExtent); (void) CopyMagickString(image->magick_filename,image_info->filename, MaxTextExtent); (void) CopyMagickString(image->magick,"WMF",MaxTextExtent); } (void) RelinquishUniqueFileResource(filename); return(GetFirstImageInList(image)); } #endif /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e g i s t e r W M F I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % RegisterWMFImage() adds attributes for the WMF image format to % the list of supported formats. The attributes include the image format % tag, a method to read and/or write the format, whether the format % supports the saving of more than one frame to the same file or blob, % whether the format supports native in-memory I/O, and a brief % description of the format. % % The format of the RegisterWMFImage method is: % % unsigned long RegisterWMFImage(void) % */ ModuleExport unsigned long RegisterWMFImage(void) { MagickInfo *entry; entry = SetMagickInfo("WMZ"); #if defined(MAGICKCORE_WMF_DELEGATE) entry->decoder=ReadWMFImage; #endif entry->description=ConstantString("Compressed Windows Meta File"); entry->module=ConstantString("WMZ"); (void) RegisterMagickInfo(entry); entry=SetMagickInfo("WMF"); #if defined(MAGICKCORE_WMF_DELEGATE) entry->decoder=ReadWMFImage; #endif entry->description=ConstantString("Windows Meta File"); entry->module=ConstantString("WMF"); (void) RegisterMagickInfo(entry); return(MagickImageCoderSignature); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % U n r e g i s t e r W M F I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % UnregisterWMFImage() removes format registrations made by the % WMF module from the list of supported formats. % % The format of the UnregisterWMFImage method is: % % UnregisterWMFImage(void) % */ ModuleExport void UnregisterWMFImage(void) { (void) UnregisterMagickInfo("WMZ"); (void) UnregisterMagickInfo("WMF"); }