arospdf/fofi/FoFiBase.h

   1 //========================================================================
   2 //
   3 // FoFiBase.h
   4 //
   5 // Copyright 1999-2003 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 #ifndef FOFIBASE_H
  10 #define FOFIBASE_H
  11
  12 #include <aconf.h>
  13
  14 #ifdef USE_GCC_PRAGMAS
  15 #pragma interface
  16 #endif
  17
  18 #include "gtypes.h"
  19
  20 //------------------------------------------------------------------------
  21
  22 typedef void (*FoFiOutputFunc)(void *stream, char *data, int len);
  23
  24 //------------------------------------------------------------------------
  25 // FoFiBase
  26 //------------------------------------------------------------------------
  27
  28 class FoFiBase {
  29 public:
  30
  31   virtual ~FoFiBase();
  32
  33 protected:
  34
  35   FoFiBase(char *fileA, int lenA, GBool freeFileDataA);
  36   static char *readFile(char *fileName, int *fileLen);
  37
  38   // S = signed / U = unsigned
  39   // 8/16/32/Var = word length, in bytes
  40   // BE = big endian
  41   int getS8(int pos, GBool *ok);
  42   int getU8(int pos, GBool *ok);
  43   int getS16BE(int pos, GBool *ok);
  44   int getU16BE(int pos, GBool *ok);
  45   int getS32BE(int pos, GBool *ok);
  46   Guint getU32BE(int pos, GBool *ok);
  47   Guint getUVarBE(int pos, int size, GBool *ok);
  48
  49   GBool checkRegion(int pos, int size);
  50
  51   Guchar *fileData;
  52   Guchar *file;
  53   int len;
  54   GBool freeFileData;
  55 };
  56
  57 #endif