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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/* 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.
*
* $URL$
* $Id$
*/
#include "sound/fmopl.h"
#include "sound/softsynth/opl/dosbox.h"
#include "sound/softsynth/opl/mame.h"
#include "common/config-manager.h"
namespace OPL {
// Config implementation
enum OplEmulator {
kAuto = 0,
kMame = 1,
kDOSBox = 2
};
const Config::EmulatorDescription Config::_drivers[] = {
{ "auto", "<default>", kAuto, kFlagOpl2 | kFlagDualOpl2 | kFlagOpl3 },
{ "mame", "MAME OPL emulator", kMame, kFlagOpl2 },
#ifndef DISABLE_DOSBOX_OPL
{ "db", "DOSBox OPL emulator (experimental)", kDOSBox, kFlagOpl2 | kFlagDualOpl2 | kFlagOpl3 },
#endif
{ 0, 0, 0, 0 }
};
Config::DriverId Config::parse(const Common::String &name) {
for (int i = 0; _drivers[i].name; ++i) {
if (name.equalsIgnoreCase(_drivers[i].name))
return _drivers[i].id;
}
return -1;
}
Config::DriverId Config::detect(OplType type) {
uint32 flags = 0;
switch (type) {
case kOpl2:
flags = kFlagOpl2;
break;
case kDualOpl2:
flags = kFlagDualOpl2;
break;
case kOpl3:
flags = kFlagOpl3;
break;
}
DriverId drv = parse(ConfMan.get("opl_driver"));
// When a valid driver is selected, check whether it supports
// the requested OPL chip.
if (drv != -1 && drv != kAuto) {
// If the chip is supported, just use the driver.
if ((flags & _drivers[drv].flags))
return drv;
// When it doesn't support the flags fall back to auto detection
else
drv = -1;
}
// Detect the first matching emulator
for (int i = 1; _drivers[i].name; ++i) {
if (_drivers[i].flags & flags) {
drv = _drivers[i].id;
break;
}
}
return drv;
}
OPL *Config::create(DriverId driver, OplType type) {
// On invalid driver selection, we try to do some fallback detection
if (driver == -1) {
warning("Invalid OPL driver selected, trying to detect a fallback emulator");
driver = kAuto;
}
// If autodetection is selected, we search for a matching
// driver.
if (driver == kAuto) {
driver = detect(type);
// No emulator for the specified OPL chip could
// be found, thus stop here.
if (driver == -1) {
warning("No OPL emulator available for type %d", type);
return 0;
}
}
switch (driver) {
case kMame:
if (type == kOpl2)
return new MAME::OPL();
else
warning("MAME OPL emulator only supports OPL2 emulation.");
return 0;
#ifndef DISABLE_DOSBOX_OPL
case kDOSBox:
return new DOSBox::OPL(type);
#endif
default:
warning("Unsupported OPL emulator %d", driver);
// TODO: Maybe we should add some dummy emulator too, which just outputs
// silence as sound?
return 0;
}
}
bool OPL::_hasInstance = false;
} // end of namespace OPL
void OPLDestroy(FM_OPL *OPL) {
delete OPL;
}
void OPLResetChip(FM_OPL *OPL) {
OPL->reset();
}
void OPLWrite(FM_OPL *OPL, int a, int v) {
OPL->write(a, v);
}
unsigned char OPLRead(FM_OPL *OPL, int a) {
return OPL->read(a);
}
void OPLWriteReg(FM_OPL *OPL, int r, int v) {
OPL->writeReg(r, v);
}
void YM3812UpdateOne(FM_OPL *OPL, int16 *buffer, int length) {
OPL->readBuffer(buffer, length);
}
FM_OPL *makeAdlibOPL(int rate) {
FM_OPL *opl = OPL::Config::create();
if (opl) {
if (!opl->init(rate)) {
delete opl;
opl = 0;
}
}
return opl;
}
|
