/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

/*
 * This code is based on original Soltys source code
 * Copyright (c) 1994-1995 Janus B. Wisniewski and L.K. Avalon
 */

#ifndef __CFILE__
#define __CFILE__

#include "cge/general.h"

namespace CGE {

#define LINE_MAX    512

#ifndef IOBUF_SIZE
#define IOBUF_SIZE  K(2)
#endif

#define CFREAD(x)   Read((uint8 *)(x),sizeof(*(x)))


class IOBUF : public IOHAND {
protected:
	uint8 *Buff;
	uint16 Ptr, Lim;
	long BufMark;
	uint16 Seed;
	CRYPT *Crypt;
	virtual void ReadBuff(void);
	virtual void WriteBuff(void);
public:
	IOBUF(IOMODE mode, CRYPT *crpt = NULL);
	IOBUF(const char *name, IOMODE mode, CRYPT *crpt = NULL);
	virtual ~IOBUF(void);
	uint16 Read(void *buf, uint16 len);
	uint16 Read(uint8 *buf);
	int Read(void);
	uint16 Write(void *buf, uint16 len);
	uint16 Write(uint8 *buf);
	void Write(uint8 b);
};


class CFILE : public IOBUF {
public:
	static uint16 MaxLineLen;
	CFILE(const char *name, IOMODE mode = REA, CRYPT *crpt = NULL);
	virtual ~CFILE(void);
	void Flush(void);
	long Mark(void);
	long Seek(long pos);
	void Append(CFILE &f);
};

} // End of namespace CGE

#endif