www.pudn.com > PtOpenGuiSourceCode.zip > blob.h

/* 
  Image Compression/Decompression Methods. 
*/ 
#ifndef _MAGICK_BLOB_H 
#define _MAGICK_BLOB_H 
 
#if defined(__cplusplus) || defined(c_plusplus) 
extern "C" { 
#endif 
 
#include "image.h" 
 
/* 
  Define declarations. 
*/ 
#define MinBlobExtent  65536L 
 
/* 
  Enum declarations. 
*/ 
typedef enum 
{ 
  UndefinedBlobMode, 
  ReadBlobMode, 
  ReadBinaryBlobMode, 
  WriteBlobMode, 
  WriteBinaryBlobMode, 
  IOBinaryBlobMode 
} BlobMode; 
 
typedef enum 
{ 
  ReadMode, 
  WriteMode, 
  IOMode 
} MapMode; 
 
typedef enum 
{ 
  UndefinedStream, 
  FileStream, 
  StandardStream, 
  PipeStream, 
  ZipStream, 
  BZipStream, 
  FifoStream, 
  BlobStream 
} StreamType; 
 
/* 
  Typedef declarations. 
*/ 
typedef int 
  *(*BlobFifo)(const Image *,const void *,const size_t); 
 
typedef struct _BlobInfo 
{ 
  size_t 
    length, 
    extent, 
    quantum; 
 
  unsigned int 
    mapped, 
    eof; 
 
  ExtendedSignedIntegralType 
    offset, 
    size; 
 
  unsigned int 
    exempt, 
    status, 
    temporary; 
 
  StreamType 
    type; 
 
  FILE 
    *file; 
 
  StreamHandler 
    stream; 
 
  unsigned char 
    *data; 
 
  SemaphoreInfo 
    *semaphore; 
 
  long 
    reference_count; 
 
  unsigned long 
    signature; 
} BlobInfo; 
 
/* 
  Blob methods. 
*/ 
extern MagickExport BlobInfo 
  *CloneBlobInfo(const BlobInfo *), 
  *ReferenceBlob(BlobInfo *); 
 
extern MagickExport char 
  *ReadBlobString(Image *,char *); 
 
extern MagickExport ExtendedSignedIntegralType 
  GetBlobSize(const Image *image), 
  SeekBlob(Image *,const ExtendedSignedIntegralType,const int), 
  TellBlob(const Image *image); 
 
extern MagickExport Image 
  *BlobToImage(const ImageInfo *,const void *,const size_t,ExceptionInfo *), 
  *PingBlob(const ImageInfo *,const void *,const size_t,ExceptionInfo *); 
 
extern MagickExport int 
  EOFBlob(const Image *), 
  ReadBlobByte(Image *), 
  SyncBlob(Image *); 
 
extern MagickExport size_t 
  ReadBlob(Image *,const size_t,void *), 
  WriteBlob(Image *,const size_t,const void *), 
  WriteBlobByte(Image *,const unsigned long), 
  WriteBlobLSBLong(Image *,const unsigned long), 
  WriteBlobLSBShort(Image *,const unsigned long), 
  WriteBlobMSBLong(Image *,const unsigned long), 
  WriteBlobMSBShort(Image *,const unsigned long), 
  WriteBlobString(Image *,const char *); 
 
extern MagickExport StreamType 
  GetBlobStreamType(const Image *); 
 
extern MagickExport unsigned char 
  *GetBlobStreamData(const Image *); 
 
extern MagickExport unsigned int 
  BlobToFile(const char *,const void *,const size_t,ExceptionInfo *), 
  ImageToFile(Image *,const char *,ExceptionInfo *), 
  OpenBlob(const ImageInfo *,Image *,const BlobMode,ExceptionInfo *), 
  UnmapBlob(void *,const size_t); 
 
extern MagickExport unsigned long 
  ReadBlobLSBLong(Image *), 
  ReadBlobMSBLong(Image *); 
 
extern MagickExport unsigned short 
  ReadBlobLSBShort(Image *), 
  ReadBlobMSBShort(Image *); 
 
extern MagickExport void 
  AttachBlob(BlobInfo *,const void *,const size_t), 
  CloseBlob(Image *), 
  DestroyBlobInfo(BlobInfo *), 
  DetachBlob(BlobInfo *), 
  *FileToBlob(const char *,size_t *,ExceptionInfo *), 
  GetBlobInfo(BlobInfo *), 
  *GetConfigureBlob(const char *,char *,size_t *,ExceptionInfo *), 
  *GetTypeBlob(const char *,char *,size_t *,ExceptionInfo *), 
  *GetModuleBlob(const char *,char *,size_t *,ExceptionInfo *), 
  *ImageToBlob(const ImageInfo *,Image *,size_t *,ExceptionInfo *), 
  *MapBlob(int,const MapMode,off_t,size_t), 
  MSBOrderLong(unsigned char *,const size_t), 
  MSBOrderShort(unsigned char *,const size_t); 
 
#if defined(__cplusplus) || defined(c_plusplus) 
} 
#endif 
 
#endif