1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
/*
* AdPlug - Replayer for many OPL2/OPL3 audio file formats.
* Copyright (C) 1999 - 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* realopl.h - Real hardware OPL, by Simon Peter <dn.tlp@gmx.net>
* - Linux support by Tomas Pollak <tomas@forkhq.com>
*/
#ifndef H_ADPLUG_REALOPL
#define H_ADPLUG_REALOPL
#include "opl.h"
#define DFL_ADLIBPORT 0x388 // default adlib baseport
class CRealopl: public Copl {
public:
CRealopl(unsigned short initport = DFL_ADLIBPORT); // initport = OPL2 hardware baseport
bool detect(); // returns true if adlib compatible board is found, else false
void setvolume(int volume); // set adlib master volume (0 - 63) 0 = loudest, 63 = softest
void setquiet(bool quiet = true); // sets the OPL2 quiet, while still writing to the registers
void setport(unsigned short port) { // set new OPL2 hardware baseport
adlport = port;
}
void setnowrite(bool nw = true) { // set hardware write status
nowrite = nw;
}
int getvolume() { // get adlib master volume
return hardvol;
}
// template methods
void write(int reg, int val);
void init();
void settype(ChipType type) {
currType = type;
}
protected:
void hardwrite(int reg, int val); // write to OPL2 hardware registers
bool harddetect(); // do real hardware detection
// the 9 operators as expected by the OPL2
static const unsigned char op_table[9];
unsigned short adlport; // adlib hardware baseport
int hardvol, oldvol; // hardware master volume
bool bequiet; // quiet status cache
char hardvols[2][22][2]; // volume cache
bool nowrite; // don't write to hardware, if true
#ifdef linux
bool gotperms; // if we've requested ioperms yet
#endif
};
#endif