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Haydn: Part 1 (#2007)

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* 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
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Mary 2021-02-26 01:11:56 +01:00 • committed by GitHub
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commit f556c80d02
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167
Ryujinx.Audio/Renderer/Common/EdgeMatrix.cs Normal file
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//
// 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 Ryujinx.Audio.Renderer.Utils;
using Ryujinx.Common;
using System;
using System.Diagnostics;
using System.Runtime.CompilerServices;
namespace Ryujinx.Audio.Renderer.Common
{
/// <summary>
/// Represents a adjacent matrix.
/// </summary>
/// <remarks>This is used for splitter routing.</remarks>
public class EdgeMatrix
{
/// <summary>
/// Backing <see cref="BitArray"/> used for node connections.
/// </summary>
private BitArray _storage;
/// <summary>
/// The count of nodes of the current instance.
/// </summary>
private int _nodeCount;
/// <summary>
/// Get the required work buffer size memory needed for the <see cref="EdgeMatrix"/>.
/// </summary>
/// <param name="nodeCount">The count of nodes.</param>
/// <returns>The size required for the given <paramref name="nodeCount"/>.</returns>
public static int GetWorkBufferSize(int nodeCount)
{
int size = BitUtils.AlignUp(nodeCount * nodeCount, Constants.BufferAlignment);
return size / Unsafe.SizeOf<byte>();
}
/// <summary>
/// Initializes the <see cref="EdgeMatrix"/> instance with backing memory.
/// </summary>
/// <param name="edgeMatrixWorkBuffer">The backing memory.</param>
/// <param name="nodeCount">The count of nodes.</param>
public void Initialize(Memory<byte> edgeMatrixWorkBuffer, int nodeCount)
{
Debug.Assert(edgeMatrixWorkBuffer.Length >= GetWorkBufferSize(nodeCount));
_storage = new BitArray(edgeMatrixWorkBuffer);
_nodeCount = nodeCount;
_storage.Reset();
}
/// <summary>
/// Test if the bit at the given index is set.
/// </summary>
/// <param name="index">A bit index.</param>
/// <returns>Returns true if the bit at the given index is set</returns>
public bool Test(int index)
{
return _storage.Test(index);
}
/// <summary>
/// Reset all bits in the storage.
/// </summary>
public void Reset()
{
_storage.Reset();
}
/// <summary>
/// Reset the bit at the given index.
/// </summary>
/// <param name="index">A bit index.</param>
public void Reset(int index)
{
_storage.Reset(index);
}
/// <summary>
/// Set the bit at the given index.
/// </summary>
/// <param name="index">A bit index.</param>
public void Set(int index)
{
_storage.Set(index);
}
/// <summary>
/// Connect a given source to a given destination.
/// </summary>
/// <param name="source">The source index.</param>
/// <param name="destination">The destination index.</param>
public void Connect(int source, int destination)
{
Debug.Assert(source < _nodeCount);
Debug.Assert(destination < _nodeCount);
_storage.Set(_nodeCount * source + destination);
}
/// <summary>
/// Check if the given source is connected to the given destination.
/// </summary>
/// <param name="source">The source index.</param>
/// <param name="destination">The destination index.</param>
/// <returns>Returns true if the given source is connected to the given destination.</returns>
public bool Connected(int source, int destination)
{
Debug.Assert(source < _nodeCount);
Debug.Assert(destination < _nodeCount);
return _storage.Test(_nodeCount * source + destination);
}
/// <summary>
/// Disconnect a given source from a given destination.
/// </summary>
/// <param name="source">The source index.</param>
/// <param name="destination">The destination index.</param>
public void Disconnect(int source, int destination)
{
Debug.Assert(source < _nodeCount);
Debug.Assert(destination < _nodeCount);
_storage.Reset(_nodeCount * source + destination);
}
/// <summary>
/// Remove all edges from a given source.
/// </summary>
/// <param name="source">The source index.</param>
public void RemoveEdges(int source)
{
for (int i = 0; i < _nodeCount; i++)
{
Disconnect(source, i);
}
}
/// <summary>
/// Get the total node count.
/// </summary>
/// <returns>The total node count.</returns>
public int GetNodeCount()
{
return _nodeCount;
}
}
}