Ryujinx/Ryujinx.HLE/HOS/Services/Audio/AudioRenderer/AudioDevice.cs

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using Ryujinx.Audio.Renderer.Device;
using Ryujinx.Audio.Renderer.Server;
using Ryujinx.HLE.HOS.Kernel;
using Ryujinx.HLE.HOS.Kernel.Threading;
namespace Ryujinx.HLE.HOS.Services.Audio.AudioRenderer
{
class AudioDevice : IAudioDevice
{
private VirtualDeviceSession[] _sessions;
private ulong _appletResourceId;
private int _revision;
private bool _isUsbDeviceSupported;
private VirtualDeviceSessionRegistry _registry;
private KEvent _systemEvent;
public AudioDevice(VirtualDeviceSessionRegistry registry, KernelContext context, ulong appletResourceId, int revision)
{
_registry = registry;
_appletResourceId = appletResourceId;
_revision = revision;
BehaviourContext behaviourContext = new BehaviourContext();
behaviourContext.SetUserRevision(revision);
_isUsbDeviceSupported = behaviourContext.IsAudioUsbDeviceOutputSupported();
_sessions = _registry.GetSessionByAppletResourceId(appletResourceId);
// TODO: support the 3 different events correctly when we will have hot plugable audio devices.
_systemEvent = new KEvent(context);
_systemEvent.ReadableEvent.Signal();
}
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;
}
public string GetActiveAudioDeviceName()
{
VirtualDevice device = _registry.ActiveDevice;
if (!_isUsbDeviceSupported && device.IsUsbDevice())
{
device = _registry.DefaultDevice;
}
return device.Name;
}
public uint GetActiveChannelCount()
{
VirtualDevice device = _registry.ActiveDevice;
if (!_isUsbDeviceSupported && device.IsUsbDevice())
{
device = _registry.DefaultDevice;
}
return device.ChannelCount;
}
public ResultCode GetAudioDeviceOutputVolume(string name, out float volume)
{
if (TryGetDeviceByName(out VirtualDeviceSession result, name))
{
volume = result.Volume;
}
else
{
volume = 0.0f;
}
return ResultCode.Success;
}
public ResultCode SetAudioDeviceOutputVolume(string name, float volume)
{
if (TryGetDeviceByName(out VirtualDeviceSession result, name, true))
{
if (!_isUsbDeviceSupported && result.Device.IsUsbDevice())
{
result = _sessions[0];
}
result.Volume = volume;
}
return ResultCode.Success;
}
public string GetActiveAudioOutputDeviceName()
{
return _registry.ActiveDevice.GetOutputDeviceName();
}
public string[] ListAudioDeviceName()
{
int deviceCount = _sessions.Length;
if (!_isUsbDeviceSupported)
{
deviceCount--;
}
string[] result = new string[deviceCount];
int i = 0;
foreach (VirtualDeviceSession session in _sessions)
{
if (!_isUsbDeviceSupported && session.Device.IsUsbDevice())
{
continue;
}
result[i] = session.Device.Name;
i++;
}
return result;
}
public string[] ListAudioOutputDeviceName()
{
int deviceCount = _sessions.Length;
string[] result = new string[deviceCount];
for (int i = 0; i < deviceCount; i++)
{
result[i] = _sessions[i].Device.GetOutputDeviceName();
}
return result;
}
public KEvent QueryAudioDeviceInputEvent()
{
return _systemEvent;
}
public KEvent QueryAudioDeviceOutputEvent()
{
return _systemEvent;
}
public KEvent QueryAudioDeviceSystemEvent()
{
return _systemEvent;
}
}
}