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

4 files changed, 0 insertions, 410 deletions

diff --git a/Ryujinx.Audio.Renderer/Server/Sink/BaseSink.cs b/Ryujinx.Audio.Renderer/Server/Sink/BaseSink.cs
deleted file mode 100644
index 949e3971..00000000
--- a/Ryujinx.Audio.Renderer/Server/Sink/BaseSink.cs
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-// 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.Common;
-using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using System.Diagnostics;
-using static Ryujinx.Audio.Renderer.Common.BehaviourParameter;
-
-namespace Ryujinx.Audio.Renderer.Server.Sink
-{
-    /// <summary>
-    /// Base class used for server information of a sink.
-    /// </summary>
-    public class BaseSink
-    {
-        /// <summary>
-        /// The type of this <see cref="BaseSink"/>.
-        /// </summary>
-        public SinkType Type;
-
-        /// <summary>
-        /// Set to true if the sink is used.
-        /// </summary>
-        public bool IsUsed;
-
-        /// <summary>
-        /// Set to true if the sink need to be skipped because of invalid state.
-        /// </summary>
-        public bool ShouldSkip;
-
-        /// <summary>
-        /// The node id of the sink.
-        /// </summary>
-        public int NodeId;
-
-        /// <summary>
-        /// Create a new <see cref="BaseSink"/>.
-        /// </summary>
-        public BaseSink()
-        {
-            CleanUp();
-        }
-
-        /// <summary>
-        /// Clean up the internal state of the <see cref="BaseSink"/>.
-        /// </summary>
-        public virtual void CleanUp()
-        {
-            Type = TargetSinkType;
-            IsUsed = false;
-            ShouldSkip = false;
-        }
-
-        /// <summary>
-        /// The target <see cref="SinkType"/> handled by this <see cref="BaseSink"/>.
-        /// </summary>
-        public virtual SinkType TargetSinkType => SinkType.Invalid;
-
-        /// <summary>
-        /// Check if the <see cref="SinkType"/> sent by the user match the internal <see cref="SinkType"/>.
-        /// </summary>
-        /// <param name="parameter">The user parameter.</param>
-        /// <returns>Return true, if the <see cref="SinkType"/> sent by the user match the internal <see cref="SinkType"/>.</returns>
-        public bool IsTypeValid(ref SinkInParameter parameter)
-        {
-            return parameter.Type == TargetSinkType;
-        }
-
-        /// <summary>
-        /// Update the <see cref="BaseSink"/> state during command generation.
-        /// </summary>
-        public virtual void UpdateForCommandGeneration()
-        {
-            Debug.Assert(Type == TargetSinkType);
-        }
-
-        /// <summary>
-        /// Update the internal common parameters from user parameter.
-        /// </summary>
-        /// <param name="parameter">The user parameter.</param>
-        protected void UpdateStandardParameter(ref SinkInParameter parameter)
-        {
-            if (IsUsed != parameter.IsUsed)
-            {
-                IsUsed = parameter.IsUsed;
-                NodeId = parameter.NodeId;
-            }
-        }
-
-        /// <summary>
-        /// Update the internal state from user parameter.
-        /// </summary>
-        /// <param name="errorInfo">The possible <see cref="ErrorInfo"/> that was generated.</param>
-        /// <param name="parameter">The user parameter.</param>
-        /// <param name="outStatus">The user output status.</param>
-        /// <param name="mapper">The mapper to use.</param>
-        public virtual void Update(out ErrorInfo errorInfo, ref SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            errorInfo = new ErrorInfo();
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Sink/CircularBufferSink.cs b/Ryujinx.Audio.Renderer/Server/Sink/CircularBufferSink.cs
deleted file mode 100644
index 16d25a65..00000000
--- a/Ryujinx.Audio.Renderer/Server/Sink/CircularBufferSink.cs
+++ /dev/null
@@ -1,126 +0,0 @@
-//
-// 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.Common;
-using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Audio.Renderer.Parameter.Sink;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Server.Sink
-{
-    /// <summary>
-    /// Server information for a circular buffer sink.
-    /// </summary>
-    public class CircularBufferSink : BaseSink
-    {
-        /// <summary>
-        /// The circular buffer parameter.
-        /// </summary>
-        public CircularBufferParameter Parameter;
-
-        /// <summary>
-        /// The last written data offset on the circular buffer.
-        /// </summary>
-        private uint _lastWrittenOffset;
-
-        /// <summary>
-        /// THe previous written offset of the circular buffer.
-        /// </summary>
-        private uint _oldWrittenOffset;
-
-        /// <summary>
-        /// The current offset to write data on the circular buffer.
-        /// </summary>
-        public uint CurrentWriteOffset { get; private set; }
-
-        /// <summary>
-        /// The <see cref="AddressInfo"/> of the circular buffer.
-        /// </summary>
-        public AddressInfo CircularBufferAddressInfo;
-
-        public CircularBufferSink()
-        {
-            CircularBufferAddressInfo = AddressInfo.Create();
-        }
-
-        public override SinkType TargetSinkType => SinkType.CircularBuffer;
-
-        public override void Update(out BehaviourParameter.ErrorInfo errorInfo, ref SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
-        {
-            errorInfo = new BehaviourParameter.ErrorInfo();
-            outStatus = new SinkOutStatus();
-
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            ref CircularBufferParameter inputDeviceParameter = ref MemoryMarshal.Cast<byte, CircularBufferParameter>(parameter.SpecificData)[0];
-
-            if (parameter.IsUsed != IsUsed || ShouldSkip)
-            {
-                UpdateStandardParameter(ref parameter);
-
-                if (parameter.IsUsed)
-                {
-                    Debug.Assert(CircularBufferAddressInfo.CpuAddress == 0);
-                    Debug.Assert(CircularBufferAddressInfo.GetReference(false) == 0);
-
-                    ShouldSkip = !mapper.TryAttachBuffer(out errorInfo, ref CircularBufferAddressInfo, inputDeviceParameter.BufferAddress, inputDeviceParameter.BufferSize);
-                }
-                else
-                {
-                    Debug.Assert(CircularBufferAddressInfo.CpuAddress != 0);
-                    Debug.Assert(CircularBufferAddressInfo.GetReference(false) != 0);
-                }
-
-                Parameter = inputDeviceParameter;
-            }
-
-            outStatus.LastWrittenOffset = _lastWrittenOffset;
-        }
-
-        public override void UpdateForCommandGeneration()
-        {
-            Debug.Assert(Type == TargetSinkType);
-
-            if (IsUsed)
-            {
-                uint frameSize = RendererConstants.TargetSampleSize * Parameter.SampleCount * Parameter.InputCount;
-
-                _lastWrittenOffset = _oldWrittenOffset;
-
-                _oldWrittenOffset = CurrentWriteOffset;
-
-                CurrentWriteOffset += frameSize;
-
-                if (Parameter.BufferSize > 0)
-                {
-                    CurrentWriteOffset %= Parameter.BufferSize;
-                }
-            }
-        }
-
-        public override void CleanUp()
-        {
-            CircularBufferAddressInfo = AddressInfo.Create();
-            _lastWrittenOffset = 0;
-            _oldWrittenOffset = 0;
-            CurrentWriteOffset = 0;
-            base.CleanUp();
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Sink/DeviceSink.cs b/Ryujinx.Audio.Renderer/Server/Sink/DeviceSink.cs
deleted file mode 100644
index 79af05f7..00000000
--- a/Ryujinx.Audio.Renderer/Server/Sink/DeviceSink.cs
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-// 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.Common;
-using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Audio.Renderer.Parameter.Sink;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using Ryujinx.Audio.Renderer.Server.Upsampler;
-using System;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Server.Sink
-{
-    /// <summary>
-    /// Server information for a device sink.
-    /// </summary>
-    public class DeviceSink : BaseSink
-    {
-        /// <summary>
-        /// The downmix coefficients.
-        /// </summary>
-        public float[] DownMixCoefficients;
-
-        /// <summary>
-        /// The device parameters.
-        /// </summary>
-        public DeviceParameter Parameter;
-
-        /// <summary>
-        /// The upsampler instance used by this sink.
-        /// </summary>
-        /// <remarks>Null if no upsampling is needed.</remarks>
-        public UpsamplerState UpsamplerState;
-
-        /// <summary>
-        /// Create a new <see cref="DeviceSink"/>.
-        /// </summary>
-        public DeviceSink()
-        {
-            DownMixCoefficients = new float[4];
-        }
-
-        public override void CleanUp()
-        {
-            UpsamplerState?.Release();
-
-            UpsamplerState = null;
-
-            base.CleanUp();
-        }
-
-        public override SinkType TargetSinkType => SinkType.Device;
-
-        public override void Update(out BehaviourParameter.ErrorInfo errorInfo, ref SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            ref DeviceParameter inputDeviceParameter = ref MemoryMarshal.Cast<byte, DeviceParameter>(parameter.SpecificData)[0];
-
-            if (parameter.IsUsed != IsUsed)
-            {
-                UpdateStandardParameter(ref parameter);
-                Parameter = inputDeviceParameter;
-            }
-            else
-            {
-                Parameter.DownMixParameterEnabled = inputDeviceParameter.DownMixParameterEnabled;
-                inputDeviceParameter.DownMixParameter.ToSpan().CopyTo(Parameter.DownMixParameter.ToSpan());
-            }
-
-            Parameter.DownMixParameter.ToSpan().CopyTo(DownMixCoefficients.AsSpan());
-
-            errorInfo = new BehaviourParameter.ErrorInfo();
-            outStatus = new SinkOutStatus();
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Sink/SinkContext.cs b/Ryujinx.Audio.Renderer/Server/Sink/SinkContext.cs
deleted file mode 100644
index b57dbde9..00000000
--- a/Ryujinx.Audio.Renderer/Server/Sink/SinkContext.cs
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// 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.Diagnostics;
-
-namespace Ryujinx.Audio.Renderer.Server.Sink
-{
-    /// <summary>
-    /// Sink context.
-    /// </summary>
-    public class SinkContext
-    {
-        /// <summary>
-        /// Storage for <see cref="BaseSink"/>.
-        /// </summary>
-        private BaseSink[] _sinks;
-
-        /// <summary>
-        /// The total sink count.
-        /// </summary>
-        private uint _sinkCount;
-
-        /// <summary>
-        /// Initialize the <see cref="SinkContext"/>.
-        /// </summary>
-        /// <param name="sinksCount">The total sink count.</param>
-        public void Initialize(uint sinksCount)
-        {
-            _sinkCount = sinksCount;
-            _sinks = new BaseSink[_sinkCount];
-
-            for (int i = 0; i < _sinkCount; i++)
-            {
-                _sinks[i] = new BaseSink();
-            }
-        }
-
-        /// <summary>
-        /// Get the total sink count.
-        /// </summary>
-        /// <returns>The total sink count.</returns>
-        public uint GetCount()
-        {
-            return _sinkCount;
-        }
-
-        /// <summary>
-        /// Get a reference to a <see cref="BaseSink"/> at the given <paramref name="id"/>.
-        /// </summary>
-        /// <param name="id">The index to use.</param>
-        /// <returns>A reference to a <see cref="BaseSink"/> at the given <paramref name="id"/>.</returns>
-        public ref BaseSink GetSink(int id)
-        {
-            Debug.Assert(id >= 0 && id < _sinkCount);
-
-            return ref _sinks[id];
-        }
-    }
-}