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70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
/*
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* Adplug - Replayer for many OPL2/OPL3 audio file formats.
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* Copyright (C) 1999 - 2007 Simon Peter, <dn.tlp@gmx.net>, et al.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* opl.h - OPL base class, by Simon Peter <dn.tlp@gmx.net>
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*/
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#ifndef H_ADPLUG_OPL
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#define H_ADPLUG_OPL
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class Copl
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{
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public:
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typedef enum {
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TYPE_OPL2, TYPE_OPL3, TYPE_DUAL_OPL2
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} ChipType;
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Copl()
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: currChip(0), currType(TYPE_OPL2)
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{
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}
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virtual ~Copl()
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{
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}
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virtual void write(int reg, int val) = 0; // combined register select + data write
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virtual void setchip(int n) // select OPL chip
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{
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if(n < 2)
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currChip = n;
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}
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virtual int getchip() // returns current OPL chip
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{
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return currChip;
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}
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virtual void init(void) = 0; // reinitialize OPL chip(s)
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// return this OPL chip's type
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ChipType gettype()
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{
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return currType;
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}
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// Emulation only: fill buffer
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virtual void update(short *buf, int samples) {}
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protected:
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int currChip; // currently selected OPL chip number
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ChipType currType; // this OPL chip's type
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};
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#endif
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