2 * AdPlug - Replayer for many OPL2/OPL3 audio file formats.
3 * Copyright (C) 1999 - 2004 Simon Peter <dn.tlp@gmx.net>, et al.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 * temuopl.cpp - Tatsuyuki Satoh's OPL2 emulator, by Simon Peter <dn.tlp@gmx.net>
24 CTemuopl::CTemuopl(int rate, bool bit16, bool usestereo)
25 : use16bit(bit16), stereo(usestereo)
27 opl = OPLCreate(OPL_TYPE_YM3812, 3579545, rate);
35 void CTemuopl::update(short *buf, int samples)
40 YM3812UpdateOne(opl,buf,samples);
43 for(i=samples-1;i>=0;i--) {
48 short *tempbuf = new short[stereo ? samples*2 : samples];
51 YM3812UpdateOne(opl,tempbuf,samples);
54 for(i=samples-1;i>=0;i--) {
55 tempbuf[i*2] = tempbuf[i];
56 tempbuf[i*2+1] = tempbuf[i];
59 for(i=0;i<(stereo ? samples*2 : samples);i++)
60 ((char *)buf)[i] = (tempbuf[i] >> 8) ^ 0x80;
66 void CTemuopl::write(int reg, int val)