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      1 /*
      2   Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization
      3   dedicated to making software imaging solutions freely available.
      4 
      5   You may not use this file except in compliance with the License.
      6   obtain a copy of the License at
      7 
      8     http://www.imagemagick.org/script/license.php
      9 
     10   Unless required by applicable law or agreed to in writing, software
     11   distributed under the License is distributed on an "AS IS" BASIS,
     12   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13   See the License for the specific language governing permissions and
     14   limitations under the License.
     15 
     16   MagickCore Binary Large OBjects private methods.
     17 */
     18 #ifndef MAGICKCORE_BLOB_PRIVATE_H
     19 #define MAGICKCORE_BLOB_PRIVATE_H
     20 
     21 #include "MagickCore/image.h"
     22 #include "MagickCore/stream.h"
     23 #include "MagickCore/nt-base-private.h"
     24 
     25 #if defined(__cplusplus) || defined(c_plusplus)
     26 extern "C" {
     27 #endif
     28 
     29 #define MagickMinBlobExtent  32767L
     30 #if defined(MAGICKCORE_HAVE_FSEEKO)
     31 # define fseek  fseeko
     32 # define ftell  ftello
     33 #endif
     34 
     35 typedef enum
     36 {
     37   UndefinedBlobMode,
     38   ReadBlobMode,
     39   ReadBinaryBlobMode,
     40   WriteBlobMode,
     41   WriteBinaryBlobMode,
     42   AppendBlobMode,
     43   AppendBinaryBlobMode
     44 } BlobMode;
     45 
     46 typedef enum
     47 {
     48   UndefinedStream,
     49   FileStream,
     50   StandardStream,
     51   PipeStream,
     52   ZipStream,
     53   BZipStream,
     54   FifoStream,
     55   BlobStream
     56 } StreamType;
     57 
     58 typedef int
     59   *(*BlobFifo)(const Image *,const void *,const size_t);
     60 
     61 extern MagickExport BlobInfo
     62   *CloneBlobInfo(const BlobInfo *),
     63   *ReferenceBlob(BlobInfo *);
     64 
     65 extern MagickExport char
     66   *ReadBlobString(Image *,char *);
     67 
     68 extern MagickExport const struct stat
     69   *GetBlobProperties(const Image *);
     70 
     71 extern MagickExport const void
     72   *ReadBlobStream(Image *,const size_t,void *,ssize_t *);
     73 
     74 extern MagickExport double
     75   ReadBlobDouble(Image *);
     76 
     77 extern MagickExport float
     78   ReadBlobFloat(Image *);
     79 
     80 extern MagickExport int
     81   EOFBlob(const Image *),
     82   ReadBlobByte(Image *);
     83 
     84 extern MagickExport MagickBooleanType
     85   CloseBlob(Image *),
     86   DiscardBlobBytes(Image *,const MagickSizeType),
     87   OpenBlob(const ImageInfo *,Image *,const BlobMode,ExceptionInfo *),
     88   SetBlobExtent(Image *,const MagickSizeType),
     89   UnmapBlob(void *,const size_t);
     90 
     91 extern MagickExport MagickOffsetType
     92   SeekBlob(Image *,const MagickOffsetType,const int),
     93   TellBlob(const Image *);
     94 
     95 extern MagickExport MagickSizeType
     96   ReadBlobLongLong(Image *),
     97   ReadBlobMSBLongLong(Image *);
     98 
     99 extern MagickExport signed int
    100   ReadBlobLSBSignedLong(Image *),
    101   ReadBlobMSBSignedLong(Image *),
    102   ReadBlobSignedLong(Image *);
    103 
    104 extern MagickExport signed short
    105   ReadBlobLSBSignedShort(Image *),
    106   ReadBlobMSBSignedShort(Image *),
    107   ReadBlobSignedShort(Image *);
    108 
    109 extern MagickExport ssize_t
    110   ReadBlob(Image *,const size_t,void *),
    111   WriteBlob(Image *,const size_t,const void *),
    112   WriteBlobByte(Image *,const unsigned char),
    113   WriteBlobFloat(Image *,const float),
    114   WriteBlobLong(Image *,const unsigned int),
    115   WriteBlobShort(Image *,const unsigned short),
    116   WriteBlobLSBLong(Image *,const unsigned int),
    117   WriteBlobLSBShort(Image *,const unsigned short),
    118   WriteBlobLSBSignedLong(Image *,const signed int),
    119   WriteBlobLSBSignedShort(Image *,const signed short),
    120   WriteBlobMSBLong(Image *,const unsigned int),
    121   WriteBlobMSBLongLong(Image *,const MagickSizeType),
    122   WriteBlobMSBShort(Image *,const unsigned short),
    123   WriteBlobMSBSignedLong(Image *,const signed int),
    124   WriteBlobMSBSignedShort(Image *,const signed short),
    125   WriteBlobString(Image *,const char *);
    126 
    127 extern MagickExport unsigned int
    128   ReadBlobLong(Image *),
    129   ReadBlobLSBLong(Image *),
    130   ReadBlobMSBLong(Image *);
    131 
    132 extern MagickExport unsigned short
    133   ReadBlobShort(Image *),
    134   ReadBlobLSBShort(Image *),
    135   ReadBlobMSBShort(Image *);
    136 
    137 extern MagickExport void
    138   AttachBlob(BlobInfo *,const void *,const size_t),
    139   *DetachBlob(BlobInfo *),
    140   DisassociateBlob(Image *),
    141   GetBlobInfo(BlobInfo *),
    142   *MapBlob(int,const MapMode,const MagickOffsetType,const size_t),
    143   MSBOrderLong(unsigned char *,const size_t),
    144   MSBOrderShort(unsigned char *,const size_t);
    145 
    146 #if defined(__cplusplus) || defined(c_plusplus)
    147 }
    148 #endif
    149 
    150 #endif
    151