Subversion Repositories spk

/***************************************************************************** 

  ByteReader
  ----------

  Class making your life easier if you have to read single bits from a buffer

  by yoda

  WWW:      y0da.cjb.net
  E-mail:   LordPE@gmx.net

  You are allowed to use this class in your own projects if you keep this
  trademark.

*****************************************************************************/

#pragma once

#include <windows.h>

//
// ByteReader class
//
class ByteReader
{
public:
        ByteReader(void);
        ByteReader( void* pBuff, DWORD dwSize );
        ~ByteReader(void);

        void    InitVars();
        BOOL    Assign( void *pBuff, DWORD dwSize );
        DWORD   GetUnusedBitCount();
        DWORD   GetTotalBitCount();
        DWORD   GetReadByteCount();
        BYTE    ReadBit();
        BYTE    ReadByte();
        WORD    ReadWord();
        DWORD   ReadDword();
        DWORD   ReadBits( DWORD dwBitCount );

protected:
        void*          pBuffer;
        DWORD          cbBuffer, dwBitsLeft, dwBitsTotal, dwIndex;
        BYTE           byCur;
        BYTE           byBits2Do;
};

typedef ByteReader *PByteReader;