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ryujinx-fork/Ryujinx.Audio/Renderer/Device/VirtualDeviceSessionRegistry.cs
Mary f556c80d02
Haydn: Part 1 (#2007)
* Haydn: Part 1

Based on my reverse of audio 11.0.0.

As always, core implementation under LGPLv3 for the same reasons as for Amadeus.

This place the bases of a more flexible audio system while making audout & audin accurate.

This have the following improvements:
- Complete reimplementation of audout and audin.
- Audin currently only have a dummy backend.
- Dramatically reduce CPU usage by up to 50% in common cases (SoundIO and OpenAL).
- Audio Renderer now can output to 5.1 devices when supported.
- Audio Renderer init its backend on demand instead of keeping two up all the time.
- All backends implementation are now in their own project.
- Ryujinx.Audio.Renderer was renamed Ryujinx.Audio and was refactored because of this.

As a note, games having issues with OpenAL haven't improved and will not
because of OpenAL design (stopping when buffers finish playing causing
possible audio "pops" when buffers are very small).

* Update for latest hexkyz's edits on Switchbrew

* audren: Rollback channel configuration changes

* Address gdkchan's comments

* Fix typo in OpenAL backend driver

* Address last comments

* Fix a nit

* Address gdkchan's comments
2021-02-26 01:11:56 +01:00

79 lines
3.1 KiB
C#

//
// Copyright (c) 2019-2021 Ryujinx
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//
using System.Collections.Generic;
namespace Ryujinx.Audio.Renderer.Device
{
/// <summary>
/// Represent an instance containing a registry of <see cref="VirtualDeviceSession"/>.
/// </summary>
public class VirtualDeviceSessionRegistry
{
/// <summary>
/// The session registry, used to store the sessions of a given AppletResourceId.
/// </summary>
private Dictionary<ulong, VirtualDeviceSession[]> _sessionsRegistry = new Dictionary<ulong, VirtualDeviceSession[]>();
/// <summary>
/// The default <see cref="VirtualDevice"/>.
/// </summary>
/// <remarks>This is used when the USB device is the default one on older revision.</remarks>
public VirtualDevice DefaultDevice => VirtualDevice.Devices[0];
/// <summary>
/// The current active <see cref="VirtualDevice"/>.
/// </summary>
// TODO: make this configurable
public VirtualDevice ActiveDevice = VirtualDevice.Devices[1];
/// <summary>
/// Get the associated <see cref="T:VirtualDeviceSession[]"/> from an AppletResourceId.
/// </summary>
/// <param name="resourceAppletId">The AppletResourceId used.</param>
/// <returns>The associated <see cref="T:VirtualDeviceSession[]"/> from an AppletResourceId.</returns>
public VirtualDeviceSession[] GetSessionByAppletResourceId(ulong resourceAppletId)
{
if (_sessionsRegistry.TryGetValue(resourceAppletId, out VirtualDeviceSession[] result))
{
return result;
}
result = CreateSessionsFromBehaviourContext();
_sessionsRegistry.Add(resourceAppletId, result);
return result;
}
/// <summary>
/// Create a new array of sessions for each <see cref="VirtualDevice"/>.
/// </summary>
/// <returns>A new array of sessions for each <see cref="VirtualDevice"/>.</returns>
private static VirtualDeviceSession[] CreateSessionsFromBehaviourContext()
{
VirtualDeviceSession[] virtualDeviceSession = new VirtualDeviceSession[VirtualDevice.Devices.Length];
for (int i = 0; i < virtualDeviceSession.Length; i++)
{
virtualDeviceSession[i] = new VirtualDeviceSession(VirtualDevice.Devices[i]);
}
return virtualDeviceSession;
}
}
}