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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
using Ryujinx.Audio.Backends.SoundIo.Native;
using Ryujinx.Audio.Common;
using Ryujinx.Audio.Integration;
using Ryujinx.Memory;
using System;
using System.Collections.Concurrent;
using System.Threading;
using static Ryujinx.Audio.Backends.SoundIo.Native.SoundIo;
using static Ryujinx.Audio.Integration.IHardwareDeviceDriver;
namespace Ryujinx.Audio.Backends.SoundIo
{
public class SoundIoHardwareDeviceDriver : IHardwareDeviceDriver
{
private readonly SoundIoContext _audioContext;
private readonly SoundIoDeviceContext _audioDevice;
private readonly ManualResetEvent _updateRequiredEvent;
private readonly ManualResetEvent _pauseEvent;
private readonly ConcurrentDictionary<SoundIoHardwareDeviceSession, byte> _sessions;
private int _disposeState;
public SoundIoHardwareDeviceDriver()
{
_audioContext = SoundIoContext.Create();
_updateRequiredEvent = new ManualResetEvent(false);
_pauseEvent = new ManualResetEvent(true);
_sessions = new ConcurrentDictionary<SoundIoHardwareDeviceSession, byte>();
_audioContext.Connect();
_audioContext.FlushEvents();
_audioDevice = FindValidAudioDevice(_audioContext, true);
}
public static bool IsSupported => IsSupportedInternal();
private static bool IsSupportedInternal()
{
SoundIoContext context = null;
SoundIoDeviceContext device = null;
SoundIoOutStreamContext stream = null;
bool backendDisconnected = false;
try
{
context = SoundIoContext.Create();
context.OnBackendDisconnect = err =>
{
backendDisconnected = true;
};
context.Connect();
context.FlushEvents();
if (backendDisconnected)
{
return false;
}
if (context.OutputDeviceCount == 0)
{
return false;
}
device = FindValidAudioDevice(context);
if (device == null || backendDisconnected)
{
return false;
}
stream = device.CreateOutStream();
if (stream == null || backendDisconnected)
{
return false;
}
return true;
}
catch
{
return false;
}
finally
{
stream?.Dispose();
context?.Dispose();
}
}
private static SoundIoDeviceContext FindValidAudioDevice(SoundIoContext audioContext, bool fallback = false)
{
SoundIoDeviceContext defaultAudioDevice = audioContext.GetOutputDevice(audioContext.DefaultOutputDeviceIndex);
if (!defaultAudioDevice.IsRaw)
{
return defaultAudioDevice;
}
for (int i = 0; i < audioContext.OutputDeviceCount; i++)
{
SoundIoDeviceContext audioDevice = audioContext.GetOutputDevice(i);
if (audioDevice.Id == defaultAudioDevice.Id && !audioDevice.IsRaw)
{
return audioDevice;
}
}
return fallback ? defaultAudioDevice : null;
}
public ManualResetEvent GetUpdateRequiredEvent()
{
return _updateRequiredEvent;
}
public ManualResetEvent GetPauseEvent()
{
return _pauseEvent;
}
public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
{
if (channelCount == 0)
{
channelCount = 2;
}
if (sampleRate == 0)
{
sampleRate = Constants.TargetSampleRate;
}
volume = Math.Clamp(volume, 0, 1);
if (direction != Direction.Output)
{
throw new NotImplementedException("Input direction is currently not implemented on SoundIO backend!");
}
SoundIoHardwareDeviceSession session = new SoundIoHardwareDeviceSession(this, memoryManager, sampleFormat, sampleRate, channelCount, volume);
_sessions.TryAdd(session, 0);
return session;
}
internal bool Unregister(SoundIoHardwareDeviceSession session)
{
return _sessions.TryRemove(session, out _);
}
public static SoundIoFormat GetSoundIoFormat(SampleFormat format)
{
return format switch
{
SampleFormat.PcmInt8 => SoundIoFormat.S8,
SampleFormat.PcmInt16 => SoundIoFormat.S16LE,
SampleFormat.PcmInt24 => SoundIoFormat.S24LE,
SampleFormat.PcmInt32 => SoundIoFormat.S32LE,
SampleFormat.PcmFloat => SoundIoFormat.Float32LE,
_ => throw new ArgumentException ($"Unsupported sample format {format}"),
};
}
internal SoundIoOutStreamContext OpenStream(SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount)
{
SoundIoFormat driverSampleFormat = GetSoundIoFormat(requestedSampleFormat);
if (!_audioDevice.SupportsSampleRate((int)requestedSampleRate))
{
throw new ArgumentException($"This sound device does not support a sample rate of {requestedSampleRate}Hz");
}
if (!_audioDevice.SupportsFormat(driverSampleFormat))
{
throw new ArgumentException($"This sound device does not support {requestedSampleFormat}");
}
if (!_audioDevice.SupportsChannelCount((int)requestedChannelCount))
{
throw new ArgumentException($"This sound device does not support channel count {requestedChannelCount}");
}
SoundIoOutStreamContext result = _audioDevice.CreateOutStream();
result.Name = "Ryujinx";
result.Layout = SoundIoChannelLayout.GetDefaultValue((int)requestedChannelCount);
result.Format = driverSampleFormat;
result.SampleRate = (int)requestedSampleRate;
return result;
}
internal void FlushContextEvents()
{
_audioContext.FlushEvents();
}
public void Dispose()
{
if (Interlocked.CompareExchange(ref _disposeState, 1, 0) == 0)
{
Dispose(true);
}
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
foreach (SoundIoHardwareDeviceSession session in _sessions.Keys)
{
session.Dispose();
}
_audioContext.Disconnect();
_audioContext.Dispose();
_pauseEvent.Dispose();
}
}
public bool SupportsSampleRate(uint sampleRate)
{
return _audioDevice.SupportsSampleRate((int)sampleRate);
}
public bool SupportsSampleFormat(SampleFormat sampleFormat)
{
return _audioDevice.SupportsFormat(GetSoundIoFormat(sampleFormat));
}
public bool SupportsChannelCount(uint channelCount)
{
return _audioDevice.SupportsChannelCount((int)channelCount);
}
public bool SupportsDirection(Direction direction)
{
// TODO: add direction input when supported.
return direction == Direction.Output;
}
}
}
|
