From cee712105850ac3385cd0091a923438167433f9f Mon Sep 17 00:00:00 2001
From: TSR Berry <20988865+TSRBerry@users.noreply.github.com>
Date: Sat, 8 Apr 2023 01:22:00 +0200
Subject: Move solution and projects to src
---
.../SoundIoHardwareDeviceDriver.cs | 247 +++++++++++++++++++++
1 file changed, 247 insertions(+)
create mode 100644 src/Ryujinx.Audio.Backends.SoundIo/SoundIoHardwareDeviceDriver.cs
(limited to 'src/Ryujinx.Audio.Backends.SoundIo/SoundIoHardwareDeviceDriver.cs')
diff --git a/src/Ryujinx.Audio.Backends.SoundIo/SoundIoHardwareDeviceDriver.cs b/src/Ryujinx.Audio.Backends.SoundIo/SoundIoHardwareDeviceDriver.cs
new file mode 100644
index 00000000..02da2776
--- /dev/null
+++ b/src/Ryujinx.Audio.Backends.SoundIo/SoundIoHardwareDeviceDriver.cs
@@ -0,0 +1,247 @@
+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;
+ }
+ }
+}
--
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