| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % PPPP W W PPPP % |
| % P P W W P P % |
| % PPPP W W PPPP % |
| % P W W W P % |
| % P W W P % |
| % % |
| % % |
| % Read Seattle Film Works Image Format % |
| % % |
| % Software Design % |
| % Cristy % |
| % July 1992 % |
| % % |
| % % |
| % Copyright 1999-2019 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 % |
| % % |
| % https://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 "MagickCore/studio.h" |
| #include "MagickCore/blob.h" |
| #include "MagickCore/blob-private.h" |
| #include "MagickCore/constitute.h" |
| #include "MagickCore/exception.h" |
| #include "MagickCore/exception-private.h" |
| #include "MagickCore/image.h" |
| #include "MagickCore/image-private.h" |
| #include "MagickCore/list.h" |
| #include "MagickCore/magick.h" |
| #include "MagickCore/memory_.h" |
| #include "MagickCore/monitor.h" |
| #include "MagickCore/monitor-private.h" |
| #include "MagickCore/resource_.h" |
| #include "MagickCore/quantum-private.h" |
| #include "MagickCore/static.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/module.h" |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % I s P W P % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % IsPWP() returns MagickTrue if the image format type, identified by the |
| % magick string, is PWP. |
| % |
| % The format of the IsPWP method is: |
| % |
| % MagickBooleanType IsPWP(const unsigned char *magick,const size_t length) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick: compare image format pattern against these bytes. |
| % |
| % o length: Specifies the length of the magick string. |
| % |
| % |
| */ |
| static MagickBooleanType IsPWP(const unsigned char *magick,const size_t length) |
| { |
| if (length < 5) |
| return(MagickFalse); |
| if (LocaleNCompare((char *) magick,"SFW95",5) == 0) |
| return(MagickTrue); |
| return(MagickFalse); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d P W P I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadPWPImage() reads a Seattle Film Works multi-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 ReadPWPImage method is: |
| % |
| % Image *ReadPWPImage(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 Image *ReadPWPImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| { |
| char |
| filename[MagickPathExtent]; |
| |
| FILE |
| *file; |
| |
| Image |
| *image, |
| *next_image, |
| *pwp_image; |
| |
| ImageInfo |
| *read_info; |
| |
| int |
| c, |
| unique_file; |
| |
| MagickBooleanType |
| status; |
| |
| register Image |
| *p; |
| |
| register ssize_t |
| i; |
| |
| size_t |
| filesize, |
| length; |
| |
| ssize_t |
| count; |
| |
| unsigned char |
| magick[MagickPathExtent]; |
| |
| /* |
| Open image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickCoreSignature); |
| if (image_info->debug != MagickFalse) |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| image_info->filename); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickCoreSignature); |
| image=AcquireImage(image_info,exception); |
| status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| { |
| image=DestroyImage(image); |
| return((Image *) NULL); |
| } |
| pwp_image=image; |
| memset(magick,0,sizeof(magick)); |
| count=ReadBlob(pwp_image,5,magick); |
| if ((count != 5) || (LocaleNCompare((char *) magick,"SFW95",5) != 0)) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| read_info=CloneImageInfo(image_info); |
| (void) SetImageInfoProgressMonitor(read_info,(MagickProgressMonitor) NULL, |
| (void *) NULL); |
| SetImageInfoBlob(read_info,(void *) NULL,0); |
| unique_file=AcquireUniqueFileResource(filename); |
| (void) FormatLocaleString(read_info->filename,MagickPathExtent,"sfw:%s", |
| filename); |
| for ( ; ; ) |
| { |
| (void) memset(magick,0,sizeof(magick)); |
| for (c=ReadBlobByte(pwp_image); c != EOF; c=ReadBlobByte(pwp_image)) |
| { |
| for (i=0; i < 17; i++) |
| magick[i]=magick[i+1]; |
| magick[17]=(unsigned char) c; |
| if (LocaleNCompare((char *) (magick+12),"SFW94A",6) == 0) |
| break; |
| } |
| if (c == EOF) |
| { |
| (void) RelinquishUniqueFileResource(filename); |
| read_info=DestroyImageInfo(read_info); |
| ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile"); |
| } |
| if (LocaleNCompare((char *) (magick+12),"SFW94A",6) != 0) |
| { |
| (void) RelinquishUniqueFileResource(filename); |
| read_info=DestroyImageInfo(read_info); |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| } |
| /* |
| Dump SFW image to a temporary file. |
| */ |
| file=(FILE *) NULL; |
| if (unique_file != -1) |
| file=fdopen(unique_file,"wb"); |
| if ((unique_file == -1) || (file == (FILE *) NULL)) |
| { |
| (void) RelinquishUniqueFileResource(filename); |
| read_info=DestroyImageInfo(read_info); |
| ThrowFileException(exception,FileOpenError,"UnableToWriteFile", |
| image->filename); |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| length=fwrite("SFW94A",1,6,file); |
| (void) length; |
| filesize=65535UL*magick[2]+256L*magick[1]+magick[0]; |
| for (i=0; i < (ssize_t) filesize; i++) |
| { |
| c=ReadBlobByte(pwp_image); |
| if (c == EOF) |
| break; |
| if (fputc(c,file) != c) |
| break; |
| } |
| (void) fclose(file); |
| if (c == EOF) |
| { |
| (void) RelinquishUniqueFileResource(filename); |
| read_info=DestroyImageInfo(read_info); |
| ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile"); |
| } |
| next_image=ReadImage(read_info,exception); |
| if (next_image == (Image *) NULL) |
| break; |
| (void) FormatLocaleString(next_image->filename,MagickPathExtent, |
| "slide_%02ld.sfw",(long) next_image->scene); |
| if (image == (Image *) NULL) |
| image=next_image; |
| else |
| { |
| /* |
| Link image into image list. |
| */ |
| for (p=image; p->next != (Image *) NULL; p=GetNextImageInList(p)) ; |
| next_image->previous=p; |
| next_image->scene=p->scene+1; |
| p->next=next_image; |
| } |
| if (image_info->number_scenes != 0) |
| if (next_image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| break; |
| status=SetImageProgress(image,LoadImagesTag,TellBlob(pwp_image), |
| GetBlobSize(pwp_image)); |
| if (status == MagickFalse) |
| break; |
| } |
| if (unique_file != -1) |
| (void) close(unique_file); |
| (void) RelinquishUniqueFileResource(filename); |
| read_info=DestroyImageInfo(read_info); |
| if (image != (Image *) NULL) |
| { |
| if (EOFBlob(image) != MagickFalse) |
| { |
| char |
| *message; |
| |
| message=GetExceptionMessage(errno); |
| (void) ThrowMagickException(exception,GetMagickModule(), |
| CorruptImageError,"UnexpectedEndOfFile","`%s': %s",image->filename, |
| message); |
| message=DestroyString(message); |
| } |
| (void) CloseBlob(image); |
| } |
| return(GetFirstImageInList(image)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r P W P I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RegisterPWPImage() adds attributes for the PWP 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 RegisterPWPImage method is: |
| % |
| % size_t RegisterPWPImage(void) |
| % |
| */ |
| ModuleExport size_t RegisterPWPImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=AcquireMagickInfo("PWP","PWP","Seattle Film Works"); |
| entry->decoder=(DecodeImageHandler *) ReadPWPImage; |
| entry->magick=(IsImageFormatHandler *) IsPWP; |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r P W P I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % UnregisterPWPImage() removes format registrations made by the |
| % PWP module from the list of supported formats. |
| % |
| % The format of the UnregisterPWPImage method is: |
| % |
| % UnregisterPWPImage(void) |
| % |
| */ |
| ModuleExport void UnregisterPWPImage(void) |
| { |
| (void) UnregisterMagickInfo("PWP"); |
| } |
