1 files changed, 252 insertions, 0 deletions
diff --git a/src/Ryujinx.Horizon/Sdk/Audio/Detail/AudioDevice.cs b/src/Ryujinx.Horizon/Sdk/Audio/Detail/AudioDevice.cs
new file mode 100644
index 00000000..f67ea729
--- /dev/null
+++ b/src/Ryujinx.Horizon/Sdk/Audio/Detail/AudioDevice.cs
@@ -0,0 +1,252 @@
+using Ryujinx.Audio.Renderer.Device;
+using Ryujinx.Audio.Renderer.Server;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Applet;
+using Ryujinx.Horizon.Sdk.OsTypes;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+
+namespace Ryujinx.Horizon.Sdk.Audio.Detail
+{
+    partial class AudioDevice : IAudioDevice, IDisposable
+    {
+        private readonly VirtualDeviceSessionRegistry _registry;
+        private readonly VirtualDeviceSession[] _sessions;
+        private readonly bool _isUsbDeviceSupported;
+
+        private SystemEventType _audioEvent;
+        private SystemEventType _audioInputEvent;
+        private SystemEventType _audioOutputEvent;
+
+        public AudioDevice(VirtualDeviceSessionRegistry registry, AppletResourceUserId appletResourceId, uint revision)
+        {
+            _registry = registry;
+
+            BehaviourContext behaviourContext = new();
+            behaviourContext.SetUserRevision((int)revision);
+
+            _isUsbDeviceSupported = behaviourContext.IsAudioUsbDeviceOutputSupported();
+            _sessions = registry.GetSessionByAppletResourceId(appletResourceId.Id);
+
+            Os.CreateSystemEvent(out _audioEvent, EventClearMode.AutoClear, interProcess: true);
+            Os.CreateSystemEvent(out _audioInputEvent, EventClearMode.AutoClear, interProcess: true);
+            Os.CreateSystemEvent(out _audioOutputEvent, EventClearMode.AutoClear, interProcess: true);
+        }
+
+        private bool TryGetDeviceByName(out VirtualDeviceSession result, string name, bool ignoreRevLimitation = false)
+        {
+            result = null;
+
+            foreach (VirtualDeviceSession session in _sessions)
+            {
+                if (session.Device.Name.Equals(name))
+                {
+                    if (!ignoreRevLimitation && !_isUsbDeviceSupported && session.Device.IsUsbDevice())
+                    {
+                        return false;
+                    }
+
+                    result = session;
+
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
+        [CmifCommand(0)]
+        public Result ListAudioDeviceName([Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<DeviceName> names, out int nameCount)
+        {
+            int count = 0;
+
+            foreach (VirtualDeviceSession session in _sessions)
+            {
+                if (!_isUsbDeviceSupported && session.Device.IsUsbDevice())
+                {
+                    continue;
+                }
+
+                if (count >= names.Length)
+                {
+                    break;
+                }
+
+                names[count] = new DeviceName(session.Device.Name);
+
+                count++;
+            }
+
+            nameCount = count;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(1)]
+        public Result SetAudioDeviceOutputVolume([Buffer(HipcBufferFlags.In | HipcBufferFlags.MapAlias)] ReadOnlySpan<DeviceName> name, float volume)
+        {
+            if (name.Length > 0 && TryGetDeviceByName(out VirtualDeviceSession result, name[0].ToString(), ignoreRevLimitation: true))
+            {
+                if (!_isUsbDeviceSupported && result.Device.IsUsbDevice())
+                {
+                    result = _sessions[0];
+                }
+
+                result.Volume = volume;
+            }
+
+            return Result.Success;
+        }
+
+        [CmifCommand(2)]
+        public Result GetAudioDeviceOutputVolume([Buffer(HipcBufferFlags.In | HipcBufferFlags.MapAlias)] ReadOnlySpan<DeviceName> name, out float volume)
+        {
+            if (name.Length > 0 && TryGetDeviceByName(out VirtualDeviceSession result, name[0].ToString()))
+            {
+                volume = result.Volume;
+            }
+            else
+            {
+                volume = 0f;
+            }
+
+            return Result.Success;
+        }
+
+        [CmifCommand(3)]
+        public Result GetActiveAudioDeviceName([Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<DeviceName> name)
+        {
+            VirtualDevice device = _registry.ActiveDevice;
+
+            if (!_isUsbDeviceSupported && device.IsUsbDevice())
+            {
+                device = _registry.DefaultDevice;
+            }
+
+            if (name.Length > 0)
+            {
+                name[0] = new DeviceName(device.Name);
+            }
+
+            return Result.Success;
+        }
+
+        [CmifCommand(4)]
+        public Result QueryAudioDeviceSystemEvent([CopyHandle] out int eventHandle)
+        {
+            eventHandle = Os.GetReadableHandleOfSystemEvent(ref _audioEvent);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(5)]
+        public Result GetActiveChannelCount(out int channelCount)
+        {
+            VirtualDevice device = _registry.ActiveDevice;
+
+            if (!_isUsbDeviceSupported && device.IsUsbDevice())
+            {
+                device = _registry.DefaultDevice;
+            }
+
+            channelCount = (int)device.ChannelCount;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(6)] // 3.0.0+
+        public Result ListAudioDeviceNameAuto([Buffer(HipcBufferFlags.Out | HipcBufferFlags.AutoSelect)] Span<DeviceName> names, out int nameCount)
+        {
+            return ListAudioDeviceName(names, out nameCount);
+        }
+
+        [CmifCommand(7)] // 3.0.0+
+        public Result SetAudioDeviceOutputVolumeAuto([Buffer(HipcBufferFlags.In | HipcBufferFlags.AutoSelect)] ReadOnlySpan<DeviceName> name, float volume)
+        {
+            return SetAudioDeviceOutputVolume(name, volume);
+        }
+
+        [CmifCommand(8)] // 3.0.0+
+        public Result GetAudioDeviceOutputVolumeAuto([Buffer(HipcBufferFlags.In | HipcBufferFlags.AutoSelect)] ReadOnlySpan<DeviceName> name, out float volume)
+        {
+            return GetAudioDeviceOutputVolume(name, out volume);
+        }
+
+        [CmifCommand(10)] // 3.0.0+
+        public Result GetActiveAudioDeviceNameAuto([Buffer(HipcBufferFlags.Out | HipcBufferFlags.AutoSelect)] Span<DeviceName> name)
+        {
+            return GetActiveAudioDeviceName(name);
+        }
+
+        [CmifCommand(11)] // 3.0.0+
+        public Result QueryAudioDeviceInputEvent([CopyHandle] out int eventHandle)
+        {
+            eventHandle = Os.GetReadableHandleOfSystemEvent(ref _audioInputEvent);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(12)] // 3.0.0+
+        public Result QueryAudioDeviceOutputEvent([CopyHandle] out int eventHandle)
+        {
+            eventHandle = Os.GetReadableHandleOfSystemEvent(ref _audioOutputEvent);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(13)] // 13.0.0+
+        public Result GetActiveAudioOutputDeviceName([Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<DeviceName> name)
+        {
+            if (name.Length > 0)
+            {
+                name[0] = new DeviceName(_registry.ActiveDevice.GetOutputDeviceName());
+            }
+
+            return Result.Success;
+        }
+
+        [CmifCommand(14)] // 13.0.0+
+        public Result ListAudioOutputDeviceName([Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<DeviceName> names, out int nameCount)
+        {
+            int count = 0;
+
+            foreach (VirtualDeviceSession session in _sessions)
+            {
+                if (!_isUsbDeviceSupported && session.Device.IsUsbDevice())
+                {
+                    continue;
+                }
+
+                if (count >= names.Length)
+                {
+                    break;
+                }
+
+                names[count] = new DeviceName(session.Device.GetOutputDeviceName());
+
+                count++;
+            }
+
+            nameCount = count;
+
+            return Result.Success;
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                Os.DestroySystemEvent(ref _audioEvent);
+                Os.DestroySystemEvent(ref _audioInputEvent);
+                Os.DestroySystemEvent(ref _audioOutputEvent);
+            }
+        }
+
+        public void Dispose()
+        {
+            Dispose(disposing: true);
+            GC.SuppressFinalize(this);
+        }
+    }
+}