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.
*
*/
#include <FSysSettingInfo.h>
#include <FAppAppRegistry.h>
#include "backends/platform/tizen/audio.h"
#include "backends/platform/tizen/system.h"
#define TIMER_INTERVAL 10
#define VOLUME 99
AudioThread::AudioThread() :
_mixer(0),
_timer(0),
_audioOut(0),
_head(0),
_tail(0),
_ready(0),
_interval(TIMER_INTERVAL),
_playing(-1),
_muted(true) {
}
Audio::MixerImpl *AudioThread::Construct(OSystem *system) {
logEntered();
if (IsFailed(EventDrivenThread::Construct(DEFAULT_STACK_SIZE, THREAD_PRIORITY_HIGH))) {
AppLog("Failed to create AudioThread");
return NULL;
}
_mixer = new Audio::MixerImpl(system, 44100);
return _mixer;
}
AudioThread::~AudioThread() {
logEntered();
}
bool AudioThread::isSilentMode() {
bool silentMode;
String key(L"SilentMode");
Tizen::System::SettingInfo::GetValue(key, silentMode);
return silentMode;
}
void AudioThread::setMute(bool on) {
if (_audioOut && _timer) {
_muted = on;
if (on) {
_timer->Cancel();
} else {
_timer->StartAsRepeatable(_interval);
}
}
}
bool AudioThread::OnStart(void) {
logEntered();
_audioOut = new Tizen::Media::AudioOut();
if (!_audioOut || IsFailed(_audioOut->Construct(*this))) {
AppLog("Failed to create AudioOut");
return false;
}
int sampleRate = _mixer->getOutputRate();
// ideally we would update _mixer with GetOptimizedSampleRate here
if (_audioOut->GetOptimizedSampleRate() != sampleRate) {
AppLog("Non optimal sample rate %d", _audioOut->GetOptimizedSampleRate());
}
if (IsFailed(_audioOut->Prepare(AUDIO_TYPE_PCM_S16_LE,
AUDIO_CHANNEL_TYPE_STEREO, sampleRate))) {
AppLog("Failed to prepare AudioOut %d", sampleRate);
return false;
}
int bufferSize = _audioOut->GetMinBufferSize();
for (int i = 0; i < NUM_AUDIO_BUFFERS; i++) {
if (IsFailed(_audioBuffer[i].Construct(bufferSize))) {
AppLog("Failed to create audio buffer");
return false;
}
}
_timer = new Timer();
if (!_timer || IsFailed(_timer->Construct(*this))) {
AppLog("Failed to create audio timer");
return false;
}
if (IsFailed(_timer->StartAsRepeatable(_interval))) {
AppLog("failed to start audio timer");
return false;
}
_muted = false;
_mixer->setReady(true);
_audioOut->SetVolume(isSilentMode() ? 0 : VOLUME);
_audioOut->Start();
return true;
}
void AudioThread::OnStop(void) {
logEntered();
_mixer->setReady(false);
if (_timer) {
if (!_muted) {
_timer->Cancel();
}
delete _timer;
}
if (_audioOut) {
_audioOut->Reset();
delete _audioOut;
}
}
void AudioThread::OnAudioOutErrorOccurred(Tizen::Media::AudioOut &src, result r) {
logEntered();
}
void AudioThread::OnAudioOutInterrupted(Tizen::Media::AudioOut &src) {
logEntered();
}
void AudioThread::OnAudioOutReleased(Tizen::Media::AudioOut &src) {
logEntered();
_audioOut->Start();
}
void AudioThread::OnAudioOutBufferEndReached(Tizen::Media::AudioOut &src) {
if (_ready > 0) {
_playing = _tail;
_audioOut->WriteBuffer(_audioBuffer[_tail]);
_tail = (_tail + 1) % NUM_AUDIO_BUFFERS;
_ready--;
} else {
// audio buffer empty: decrease timer inverval
_playing = -1;
}
}
void AudioThread::OnTimerExpired(Timer &timer) {
if (_ready < NUM_AUDIO_BUFFERS) {
uint len = _audioBuffer[_head].GetCapacity();
int samples = _mixer->mixCallback((byte *)_audioBuffer[_head].GetPointer(), len);
if (samples) {
_head = (_head + 1) % NUM_AUDIO_BUFFERS;
_ready++;
}
}
if (_ready && _playing == -1) {
OnAudioOutBufferEndReached(*_audioOut);
}
}
|
