datastrm.h Source File

00001 /*
00002     Copyright (C) 2001 by Martin Geisse <mgeisse@gmx.net>
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __DATASTRM_H__
00020 #define __DATASTRM_H__
00021 
00022 struct iDataBuffer;
00023 
00028 class csDataStream
00029 {
00030 private:
00031   uint8 *Data;
00032   int Position, Size;
00033   bool DeleteBuffer;
00034 
00035 public:
00037   csDataStream (void *buf, int Size, bool DeleteBuffer = true);
00039   ~csDataStream ();
00040 
00042   int GetPosition ();
00044   void SetPosition (int pos);
00046   int GetLength ();
00048   bool Finished ();
00050   void Skip (int num);
00051 
00053   int Read (void *buf, int NumBytes);
00054 
00056   bool ReadInt8 (int8 &val);
00058   bool ReadUInt8 (uint8 &val);
00060   bool ReadInt16 (int16 &val);
00062   bool ReadUInt16 (uint16 &val);
00064   bool ReadInt32 (int32 &val);
00066   bool ReadUInt32 (uint32 &val);
00067 
00069   int GetChar ();
00071   int LookChar ();
00072 
00077   bool GetString (char* buf, int len, bool OmitNewline = true);
00081   int ReadTextInt ();
00085   float ReadTextFloat ();
00089   void SkipWhitespace ();
00090 };
00091 
00092 #endif // __DATASTRM_H__