blob.h

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00001 /*
00002   Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization
00003   dedicated to making software imaging solutions freely available.
00004   
00005   You may not use this file except in compliance with the License.
00006   obtain a copy of the License at
00007   
00008     http://www.imagemagick.org/script/license.php
00009   
00010   Unless required by applicable law or agreed to in writing, software
00011   distributed under the License is distributed on an "AS IS" BASIS,
00012   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013   See the License for the specific language governing permissions and
00014   limitations under the License.
00015 
00016   MagickCore Binary Large OBjects methods.
00017 */
00018 #ifndef _MAGICKCORE_BLOB_H
00019 #define _MAGICKCORE_BLOB_H
00020 
00021 #if defined(__cplusplus) || defined(c_plusplus)
00022 extern "C" {
00023 #endif
00024 
00025 #include "magick/image.h"
00026 #include "magick/stream.h"
00027 
00028 #define MagickMaxBufferExtent  0x3c005L
00029 
00030 typedef enum
00031 {
00032   ReadMode,
00033   WriteMode,
00034   IOMode
00035 } MapMode;
00036 
00037 extern MagickExport FILE
00038   *GetBlobFileHandle(const Image *);
00039 
00040 extern MagickExport Image
00041   *BlobToImage(const ImageInfo *,const void *,const size_t,ExceptionInfo *),
00042   *PingBlob(const ImageInfo *,const void *,const size_t,ExceptionInfo *);
00043 
00044 extern MagickExport MagickBooleanType
00045   BlobToFile(char *,const void *,const size_t,ExceptionInfo *),
00046   FileToImage(Image *,const char *),
00047   GetBlobError(const Image *),
00048   ImageToFile(Image *,char *,ExceptionInfo *),
00049   InjectImageBlob(const ImageInfo *,Image *,Image *,const char *,
00050     ExceptionInfo *),
00051   IsBlobExempt(const Image *),
00052   IsBlobSeekable(const Image *),
00053   IsBlobTemporary(const Image *);
00054 
00055 extern MagickExport MagickSizeType
00056   GetBlobSize(const Image *);
00057 
00058 extern MagickExport StreamHandler
00059   GetBlobStreamHandler(const Image *);
00060 
00061 extern MagickExport unsigned char
00062   *FileToBlob(const char *,const size_t,size_t *,ExceptionInfo *),
00063   *GetBlobStreamData(const Image *),
00064   *ImageToBlob(const ImageInfo *,Image *,size_t *,ExceptionInfo *),
00065   *ImagesToBlob(const ImageInfo *,Image *,size_t *,ExceptionInfo *);
00066 
00067 extern MagickExport void
00068   DestroyBlob(Image *),
00069   DuplicateBlob(Image *,const Image *),
00070   SetBlobExempt(Image *,const MagickBooleanType);
00071 
00072 #if defined(__cplusplus) || defined(c_plusplus)
00073 }
00074 #endif
00075 
00076 #endif