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
|
/* 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.
*
* $URL$
* $Id$
*
*/
#ifndef TOWNS_AUDIO_H
#define TOWNS_AUDIO_H
#include "sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.h"
class TownsAudioInterfacePluginDriver {
public:
virtual void timerCallback(int timerId) = 0;
};
class TownsAudio_PcmChannel;
class TownsAudio_WaveTable;
class TownsAudioInterface : public TownsPC98_FmSynth {
public:
TownsAudioInterface(Audio::Mixer *mixer, TownsAudioInterfacePluginDriver *driver);
~TownsAudioInterface();
bool init();
int callback(int command, ...);
private:
void nextTickEx(int32 *buffer, uint32 bufferSize);
void timerCallbackA();
void timerCallbackB();
typedef int (TownsAudioInterface::*TownsAudioIntfCallback)(va_list&);
const TownsAudioIntfCallback *_intfOpcodes;
int intf_reset(va_list &args);
int intf_keyOn(va_list &args);
int intf_keyOff(va_list &args);
int intf_setPanPos(va_list &args);
int intf_setInstrument(va_list &args);
int intf_loadInstrument(va_list &args);
int intf_setPitch(va_list &args);
int intf_setLevel(va_list &args);
int intf_chanOff(va_list &args);
int intf_writeReg(va_list &args);
int intf_bufferedWriteReg(va_list &args);
int intf_readRegBuffer(va_list &args);
int intf_setTimerA(va_list &args);
int intf_setTimerB(va_list &args);
int intf_enableTimerA(va_list &args);
int intf_enableTimerB(va_list &args);
int intf_reserveEffectChannels(va_list &args);
int intf_loadWaveTable(va_list &args);
int intf_unloadWaveTable(va_list &args);
int intf_pcmPlayEffect(va_list &args);
int intf_pcmChanOff(va_list &args);
int intf_pcmEffectPlaying(va_list &args);
int intf_fmKeyOn(va_list &args);
int intf_fmKeyOff(va_list &args);
int intf_fmSetPanPos(va_list &args);
int intf_fmSetInstrument(va_list &args);
int intf_fmLoadInstrument(va_list &args);
int intf_fmSetPitch(va_list &args);
int intf_fmSetLevel(va_list &args);
int intf_fmReset(va_list &args);
int intf_cdaSetVolume(va_list &args);
int intf_cdaReset(va_list &args);
int intf_pcmUpdateEnvelopeGenerator(va_list &args);
int intf_notImpl(va_list &args);
void fmReset();
int fmKeyOn(int chan, int note, int velo);
int fmKeyOff(int chan);
int fmChanOff(int chan);
int fmSetPanPos(int chan, int mode);
int fmSetInstrument(int chan, int instrId);
int fmLoadInstrument(int instrId, const uint8 *data);
int fmSetPitch(int chan, int pitch);
int fmSetLevel(int chan, int lvl);
void bufferedWriteReg(uint8 part, uint8 regAddress, uint8 value);
uint8 _fmChanPlaying;
uint8 _fmChanNote[6];
int16 _fmChanPitch[6];
uint8 *_fmSaveReg[2];
uint8 *_fmInstruments;
void pcmReset();
int pcmKeyOn(int chan, int note, int velo);
int pcmKeyOff(int chan);
int pcmChanOff(int chan);
int pcmSetPanPos(int chan, int mode);
int pcmSetInstrument(int chan, int instrId);
int pcmLoadInstrument(int instrId, const uint8 *data);
int pcmSetPitch(int chan, int pitch);
int pcmSetLevel(int chan, int lvl);
void pcmUpdateEnvelopeGenerator(int chan);
TownsAudio_PcmChannel *_pcmChan;
uint8 _pcmChanOut;
uint8 _pcmChanReserved;
uint8 _pcmChanKeyPressed;
uint8 _pcmChanEffectPlaying;
uint8 _pcmChanKeyPlaying;
uint8 _pcmChanNote[8];
uint8 _pcmChanVelo[8];
uint8 _pcmChanLevel[8];
uint8 _numReservedChannels;
uint8 *_pcmInstruments;
TownsAudio_WaveTable *_waveTables;
uint8 _numWaveTables;
uint32 _waveTablesTotalDataSize;
void pcmCalcPhaseStep(TownsAudio_PcmChannel *p, TownsAudio_WaveTable *w);
void cdaReset();
const float _baserate;
uint32 _timerBase;
uint32 _tickLength;
uint32 _timer;
TownsAudioInterfacePluginDriver *_drv;
bool _ready;
static const uint8 _chanFlags[];
static const uint16 _frequency[];
static const uint8 _carrier[];
static const uint8 _fmDefaultInstrument[];
static const uint16 _pcmPhase1[];
static const uint16 _pcmPhase2[];
};
#endif
|