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/* 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 __CGE_VOL__
#define __CGE_VOL__
#include "cge/btfile.h"
#include "cge/cfile.h"
namespace CGE {
#define CAT_NAME "VOL.CAT"
#define DAT_NAME "VOL.DAT"
#ifndef CRP
#define CRP XCrypt
#endif
#define XMASK 0xA5
#ifdef VOL_UPD
#define VOLBASE IOHAND
#else
#define VOLBASE CFile
#endif
class DAT {
friend class VFILE;
VOLBASE _File;
public:
DAT();
bool append(uint8 *buf, uint16 len);
bool write(CFile &f);
bool read(long org, uint16 len, uint8 *buf);
};
class VFILE : public IoBuf {
private:
static DAT *_dat;
static BtFile *_cat;
static VFILE *_recent;
long _begMark;
long _endMark;
void readBuff(void);
void writeBuff(void) { }
void make(const char *fspec);
public:
VFILE(const char *name, IOMODE mode = REA);
~VFILE(void);
static void init();
static void deinit();
static bool exist(const char *name);
static const char *next(void);
long mark(void) {
return (_bufMark + _ptr) - _begMark;
}
long size(void) {
return _endMark - _begMark;
}
long seek(long pos) {
_recent = NULL;
_lim = 0;
return (_bufMark = _begMark + pos);
}
};
} // End of namespace CGE
#endif
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