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/*
* Adplug - Replayer for many OPL2/OPL3 audio file formats.
* Copyright (C) 1999 - 2007 Simon Peter, <dn.tlp@gmx.net>, et al.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* opl.h - OPL base class, by Simon Peter <dn.tlp@gmx.net>
*/
#ifndef H_ADPLUG_OPL
#define H_ADPLUG_OPL
class Copl
{
public:
typedef enum {
TYPE_OPL2, TYPE_OPL3, TYPE_DUAL_OPL2
} ChipType;
Copl()
: currChip(0), currType(TYPE_OPL2)
{
}
virtual ~Copl()
{
}
virtual void write(int reg, int val) = 0; // combined register select + data write
virtual void setchip(int n) // select OPL chip
{
if(n < 2)
currChip = n;
}
virtual int getchip() // returns current OPL chip
{
return currChip;
}
virtual void init(void) = 0; // reinitialize OPL chip(s)
// return this OPL chip's type
ChipType gettype()
{
return currType;
}
// Emulation only: fill buffer
virtual void update(short *buf, int samples) {}
protected:
int currChip; // currently selected OPL chip number
ChipType currType; // this OPL chip's type
};
#endif
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