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

9 files changed, 0 insertions, 907 deletions

diff --git a/Ryujinx.Audio.Renderer/Server/Effect/AuxiliaryBufferEffect.cs b/Ryujinx.Audio.Renderer/Server/Effect/AuxiliaryBufferEffect.cs
deleted file mode 100644
index df82945b..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/AuxiliaryBufferEffect.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.Dsp.State;
-using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Audio.Renderer.Parameter.Effect;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using System.Diagnostics;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-using DspAddress = System.UInt64;
-
-namespace Ryujinx.Audio.Renderer.Server.Effect
-{
-    /// <summary>
-    /// Server state for an auxiliary buffer effect.
-    /// </summary>
-    public class AuxiliaryBufferEffect : BaseEffect
-    {
-        /// <summary>
-        /// The auxiliary buffer parameter.
-        /// </summary>
-        public AuxiliaryBufferParameter Parameter;
-
-        /// <summary>
-        /// Auxiliary buffer state.
-        /// </summary>
-        public AuxiliaryBufferAddresses State;
-
-        public override EffectType TargetEffectType => EffectType.AuxiliaryBuffer;
-
-        public override DspAddress GetWorkBuffer(int index)
-        {
-            return WorkBuffers[index].GetReference(true);
-        }
-
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameter parameter, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            UpdateParameterBase(ref parameter);
-
-            Parameter = MemoryMarshal.Cast<byte, AuxiliaryBufferParameter>(parameter.SpecificData)[0];
-            IsEnabled = parameter.IsEnabled;
-
-            updateErrorInfo = new BehaviourParameter.ErrorInfo();
-
-            if (BufferUnmapped || parameter.IsNew)
-            {
-                ulong bufferSize = (ulong)Unsafe.SizeOf<int>() * Parameter.BufferStorageSize + (ulong)Unsafe.SizeOf<AuxiliaryBufferHeader>() * 2;
-
-                bool sendBufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[0], Parameter.SendBufferInfoAddress, bufferSize);
-                bool returnBufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[1], Parameter.ReturnBufferInfoAddress, bufferSize);
-
-                BufferUnmapped = sendBufferUnmapped && returnBufferUnmapped;
-
-                if (!BufferUnmapped)
-                {
-                    DspAddress sendDspAddress = WorkBuffers[0].GetReference(false);
-                    DspAddress returnDspAddress = WorkBuffers[1].GetReference(false);
-
-                    State.SendBufferInfo = sendDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>();
-                    State.SendBufferInfoBase = sendDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>() * 2;
-
-                    State.ReturnBufferInfo = returnDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>();
-                    State.ReturnBufferInfoBase = returnDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>() * 2;
-                }
-            }
-        }
-
-        public override void UpdateForCommandGeneration()
-        {
-            UpdateUsageStateForCommandGeneration();
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Effect/BaseEffect.cs b/Ryujinx.Audio.Renderer/Server/Effect/BaseEffect.cs
deleted file mode 100644
index 7c491fd1..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/BaseEffect.cs
+++ /dev/null
@@ -1,257 +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 Ryujinx.Audio.Renderer.Utils;
-using System;
-using System.Diagnostics;
-using static Ryujinx.Audio.Renderer.Common.BehaviourParameter;
-
-using DspAddress = System.UInt64;
-
-namespace Ryujinx.Audio.Renderer.Server.Effect
-{
-    /// <summary>
-    /// Base class used as a server state for an effect.
-    /// </summary>
-    public class BaseEffect
-    {
-        /// <summary>
-        /// The <see cref="EffectType"/> of the effect.
-        /// </summary>
-        public EffectType Type;
-
-        /// <summary>
-        /// Set to true if the effect must be active.
-        /// </summary>
-        public bool IsEnabled;
-
-        /// <summary>
-        /// Set to true if the internal effect work buffers used wasn't mapped.
-        /// </summary>
-        public bool BufferUnmapped;
-
-        /// <summary>
-        /// The current state of the effect.
-        /// </summary>
-        public UsageState UsageState;
-
-        /// <summary>
-        /// The target mix id of the effect.
-        /// </summary>
-        public int MixId;
-
-        /// <summary>
-        /// Position of the effect while processing effects.
-        /// </summary>
-        public uint ProcessingOrder;
-
-        /// <summary>
-        /// Array of all the work buffer used by the effect.
-        /// </summary>
-        protected AddressInfo[] WorkBuffers;
-
-        /// <summary>
-        /// Create a new <see cref="BaseEffect"/>.
-        /// </summary>
-        public BaseEffect()
-        {
-            Type = TargetEffectType;
-            UsageState = UsageState.Invalid;
-
-            IsEnabled = false;
-            BufferUnmapped = false;
-            MixId = RendererConstants.UnusedMixId;
-            ProcessingOrder = uint.MaxValue;
-
-            WorkBuffers = new AddressInfo[2];
-
-            foreach (ref AddressInfo info in WorkBuffers.AsSpan())
-            {
-                info = AddressInfo.Create();
-            }
-        }
-
-        /// <summary>
-        /// The target <see cref="EffectType"/> handled by this <see cref="BaseEffect"/>.
-        /// </summary>
-        public virtual EffectType TargetEffectType => EffectType.Invalid;
-
-        /// <summary>
-        /// Check if the <see cref="EffectType"/> sent by the user match the internal <see cref="EffectType"/>.
-        /// </summary>
-        /// <param name="parameter">The user parameter.</param>
-        /// <returns>Returns true if the <see cref="EffectType"/> sent by the user matches the internal <see cref="EffectType"/>.</returns>
-        public bool IsTypeValid(ref EffectInParameter parameter)
-        {
-            return parameter.Type == TargetEffectType;
-        }
-
-        /// <summary>
-        /// Update the usage state during command generation.
-        /// </summary>
-        protected void UpdateUsageStateForCommandGeneration()
-        {
-            UsageState = IsEnabled ? UsageState.Enabled : UsageState.Disabled;
-        }
-
-        /// <summary>
-        /// Update the internal common parameters from a user parameter.
-        /// </summary>
-        /// <param name="parameter">The user parameter.</param>
-        protected void UpdateParameterBase(ref EffectInParameter parameter)
-        {
-            MixId = parameter.MixId;
-            ProcessingOrder = parameter.ProcessingOrder;
-        }
-
-        /// <summary>
-        /// Force unmap all the work buffers.
-        /// </summary>
-        /// <param name="mapper">The mapper to use.</param>
-        public void ForceUnmapBuffers(PoolMapper mapper)
-        {
-            foreach (ref AddressInfo info in WorkBuffers.AsSpan())
-            {
-                if (info.GetReference(false) != 0)
-                {
-                    mapper.ForceUnmap(ref info);
-                }
-            }
-        }
-
-        /// <summary>
-        /// Check if the effect needs to be skipped.
-        /// </summary>
-        /// <returns>Returns true if the effect needs to be skipped.</returns>
-        public bool ShouldSkip()
-        {
-            return BufferUnmapped;
-        }
-
-        /// <summary>
-        /// Update the <see cref="BaseEffect"/> state during command generation.
-        /// </summary>
-        public virtual void UpdateForCommandGeneration()
-        {
-            Debug.Assert(Type == TargetEffectType);
-        }
-
-        /// <summary>
-        /// Update the internal state from a user parameter.
-        /// </summary>
-        /// <param name="updateErrorInfo">The possible <see cref="ErrorInfo"/> that was generated.</param>
-        /// <param name="parameter">The user parameter.</param>
-        /// <param name="mapper">The mapper to use.</param>
-        public virtual void Update(out ErrorInfo updateErrorInfo, ref EffectInParameter parameter, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            updateErrorInfo = new ErrorInfo();
-        }
-
-        /// <summary>
-        /// Get the work buffer DSP address at the given index.
-        /// </summary>
-        /// <param name="index">The index of the work buffer</param>
-        /// <returns>The work buffer DSP address at the given index.</returns>
-        public virtual DspAddress GetWorkBuffer(int index)
-        {
-            throw new InvalidOperationException();
-        }
-
-        /// <summary>
-        /// Get the first work buffer DSP address.
-        /// </summary>
-        /// <returns>The first work buffer DSP address.</returns>
-        protected DspAddress GetSingleBuffer()
-        {
-            if (IsEnabled)
-            {
-                return WorkBuffers[0].GetReference(true);
-            }
-
-            if (UsageState != UsageState.Disabled)
-            {
-                DspAddress address = WorkBuffers[0].GetReference(false);
-                ulong size = WorkBuffers[0].Size;
-
-                if (address != 0 && size != 0)
-                {
-                    AudioProcessorMemoryManager.InvalidateDataCache(address, size);
-                }
-            }
-
-            return 0;
-        }
-
-        /// <summary>
-        /// Store the output status to the given user output.
-        /// </summary>
-        /// <param name="outStatus">The given user output.</param>
-        /// <param name="isAudioRendererActive">If set to true, the <see cref="AudioRenderSystem"/> is active.</param>
-        public void StoreStatus(ref EffectOutStatus outStatus, bool isAudioRendererActive)
-        {
-            if (isAudioRendererActive)
-            {
-                if (UsageState == UsageState.Disabled)
-                {
-                    outStatus.State = EffectOutStatus.EffectState.Disabled;
-                }
-                else
-                {
-                    outStatus.State = EffectOutStatus.EffectState.Enabled;
-                }
-            }
-            else if (UsageState == UsageState.New)
-            {
-                outStatus.State = EffectOutStatus.EffectState.Enabled;
-            }
-            else
-            {
-                outStatus.State = EffectOutStatus.EffectState.Disabled;
-            }
-        }
-
-        /// <summary>
-        /// Get the <see cref="PerformanceDetailType"/> associated to the <see cref="Type"/> of this effect.
-        /// </summary>
-        /// <returns>The <see cref="PerformanceDetailType"/> associated to the <see cref="Type"/> of this effect.</returns>
-        public PerformanceDetailType GetPerformanceDetailType()
-        {
-            switch (Type)
-            {
-                case EffectType.BiquadFilter:
-                    return PerformanceDetailType.BiquadFilter;
-                case EffectType.AuxiliaryBuffer:
-                    return PerformanceDetailType.Aux;
-                case EffectType.Delay:
-                    return PerformanceDetailType.Delay;
-                case EffectType.Reverb:
-                    return PerformanceDetailType.Reverb;
-                case EffectType.Reverb3d:
-                    return PerformanceDetailType.Reverb3d;
-                case EffectType.BufferMix:
-                    return PerformanceDetailType.Mix;
-                default:
-                    throw new NotImplementedException($"{Type}");
-            }
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Effect/BiquadFilterEffect.cs b/Ryujinx.Audio.Renderer/Server/Effect/BiquadFilterEffect.cs
deleted file mode 100644
index aadf2844..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/BiquadFilterEffect.cs
+++ /dev/null
@@ -1,74 +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.Dsp.State;
-using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Audio.Renderer.Parameter.Effect;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using System;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Server.Effect
-{
-    /// <summary>
-    /// Server state for a biquad filter effect.
-    /// </summary>
-    public class BiquadFilterEffect : BaseEffect
-    {
-        /// <summary>
-        /// The biquad filter parameter.
-        /// </summary>
-        public BiquadFilterEffectParameter Parameter;
-
-        /// <summary>
-        /// The biquad filter state.
-        /// </summary>
-        public Memory<BiquadFilterState> State { get; }
-
-        /// <summary>
-        /// Create a new <see cref="BiquadFilterEffect"/>.
-        /// </summary>
-        public BiquadFilterEffect()
-        {
-            Parameter = new BiquadFilterEffectParameter();
-            State = new BiquadFilterState[RendererConstants.ChannelCountMax];
-        }
-
-        public override EffectType TargetEffectType => EffectType.BiquadFilter;
-
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameter parameter, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            UpdateParameterBase(ref parameter);
-
-            Parameter = MemoryMarshal.Cast<byte, BiquadFilterEffectParameter>(parameter.SpecificData)[0];
-            IsEnabled = parameter.IsEnabled;
-
-            updateErrorInfo = new BehaviourParameter.ErrorInfo();
-        }
-
-        public override void UpdateForCommandGeneration()
-        {
-            UpdateUsageStateForCommandGeneration();
-
-            Parameter.Status = UsageState.Enabled;
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Effect/BufferMixEffect.cs b/Ryujinx.Audio.Renderer/Server/Effect/BufferMixEffect.cs
deleted file mode 100644
index 14ed3950..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/BufferMixEffect.cs
+++ /dev/null
@@ -1,56 +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.Effect;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Server.Effect
-{
-    /// <summary>
-    /// Server state for a buffer mix effect.
-    /// </summary>
-    public class BufferMixEffect : BaseEffect
-    {
-        /// <summary>
-        /// The buffer mix parameter.
-        /// </summary>
-        public BufferMixParameter Parameter;
-
-        public override EffectType TargetEffectType => EffectType.BufferMix;
-
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameter parameter, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            UpdateParameterBase(ref parameter);
-
-            Parameter = MemoryMarshal.Cast<byte, BufferMixParameter>(parameter.SpecificData)[0];
-            IsEnabled = parameter.IsEnabled;
-
-            updateErrorInfo = new BehaviourParameter.ErrorInfo();
-        }
-
-        public override void UpdateForCommandGeneration()
-        {
-            UpdateUsageStateForCommandGeneration();
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Effect/DelayEffect.cs b/Ryujinx.Audio.Renderer/Server/Effect/DelayEffect.cs
deleted file mode 100644
index df3e5ee7..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/DelayEffect.cs
+++ /dev/null
@@ -1,100 +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.Dsp.State;
-using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Audio.Renderer.Parameter.Effect;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using System;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-using DspAddress = System.UInt64;
-
-namespace Ryujinx.Audio.Renderer.Server.Effect
-{
-    /// <summary>
-    /// Server state for a delay effect.
-    /// </summary>
-    public class DelayEffect : BaseEffect
-    {
-        /// <summary>
-        /// The delay parameter.
-        /// </summary>
-        public DelayParameter Parameter;
-
-        /// <summary>
-        /// The delay state.
-        /// </summary>
-        public Memory<DelayState> State { get; }
-
-        public DelayEffect()
-        {
-            State = new DelayState[1];
-        }
-
-        public override EffectType TargetEffectType => EffectType.Delay;
-
-        public override DspAddress GetWorkBuffer(int index)
-        {
-            return GetSingleBuffer();
-        }
-
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameter parameter, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            ref DelayParameter delayParameter = ref MemoryMarshal.Cast<byte, DelayParameter>(parameter.SpecificData)[0];
-
-            updateErrorInfo = new BehaviourParameter.ErrorInfo();
-
-            if (delayParameter.IsChannelCountMaxValid())
-            {
-                UpdateParameterBase(ref parameter);
-
-                UsageState oldParameterStatus = Parameter.Status;
-
-                Parameter = delayParameter;
-
-                if (delayParameter.IsChannelCountValid())
-                {
-                    IsEnabled = parameter.IsEnabled;
-
-                    if (oldParameterStatus != UsageState.Enabled)
-                    {
-                        Parameter.Status = oldParameterStatus;
-                    }
-
-                    if (BufferUnmapped || parameter.IsNew)
-                    {
-                        UsageState = UsageState.New;
-                        Parameter.Status = UsageState.Invalid;
-
-                        BufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[0], parameter.BufferBase, parameter.BufferSize);
-                    }
-                }
-            }
-        }
-
-        public override void UpdateForCommandGeneration()
-        {
-            UpdateUsageStateForCommandGeneration();
-
-            Parameter.Status = UsageState.Enabled;
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Effect/EffectContext.cs b/Ryujinx.Audio.Renderer/Server/Effect/EffectContext.cs
deleted file mode 100644
index ff6051ae..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/EffectContext.cs
+++ /dev/null
@@ -1,82 +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.Effect
-{
-    /// <summary>
-    /// Effect context.
-    /// </summary>
-    public class EffectContext
-    {
-        /// <summary>
-        /// Storage for <see cref="BaseEffect"/>.
-        /// </summary>
-        private BaseEffect[] _effects;
-
-        /// <summary>
-        /// The total effect count.
-        /// </summary>
-        private uint _effectCount;
-
-        /// <summary>
-        /// Create a new <see cref="EffectContext"/>.
-        /// </summary>
-        public EffectContext()
-        {
-            _effects = null;
-            _effectCount = 0;
-        }
-
-        /// <summary>
-        /// Initialize the <see cref="EffectContext"/>.
-        /// </summary>
-        /// <param name="effectCount">The total effect count.</param>
-        public void Initialize(uint effectCount)
-        {
-            _effectCount = effectCount;
-            _effects = new BaseEffect[effectCount];
-
-            for (int i = 0; i < _effectCount; i++)
-            {
-                _effects[i] = new BaseEffect();
-            }
-        }
-
-        /// <summary>
-        /// Get the total effect count.
-        /// </summary>
-        /// <returns>The total effect count.</returns>
-        public uint GetCount()
-        {
-            return _effectCount;
-        }
-
-        /// <summary>
-        /// Get a reference to a <see cref="BaseEffect"/> at the given <paramref name="index"/>.
-        /// </summary>
-        /// <param name="index">The index to use.</param>
-        /// <returns>A reference to a <see cref="BaseEffect"/> at the given <paramref name="index"/>.</returns>
-        public ref BaseEffect GetEffect(int index)
-        {
-            Debug.Assert(index >= 0 && index < _effectCount);
-
-            return ref _effects[index];
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Effect/Reverb3dEffect.cs b/Ryujinx.Audio.Renderer/Server/Effect/Reverb3dEffect.cs
deleted file mode 100644
index d9f23799..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/Reverb3dEffect.cs
+++ /dev/null
@@ -1,99 +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.Dsp.State;
-using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Audio.Renderer.Parameter.Effect;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using System;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Server.Effect
-{
-    /// <summary>
-    /// Server state for a 3D reverberation effect.
-    /// </summary>
-    public class Reverb3dEffect : BaseEffect
-    {
-        /// <summary>
-        /// The 3D reverberation parameter.
-        /// </summary>
-        public Reverb3dParameter Parameter;
-
-        /// <summary>
-        /// The 3D reverberation state.
-        /// </summary>
-        public Memory<Reverb3dState> State { get; }
-
-        public Reverb3dEffect()
-        {
-            State = new Reverb3dState[1];
-        }
-
-        public override EffectType TargetEffectType => EffectType.Reverb3d;
-
-        public override ulong GetWorkBuffer(int index)
-        {
-            return GetSingleBuffer();
-        }
-
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameter parameter, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            ref Reverb3dParameter reverbParameter = ref MemoryMarshal.Cast<byte, Reverb3dParameter>(parameter.SpecificData)[0];
-
-            updateErrorInfo = new BehaviourParameter.ErrorInfo();
-
-            if (reverbParameter.IsChannelCountMaxValid())
-            {
-                UpdateParameterBase(ref parameter);
-
-                UsageState oldParameterStatus = Parameter.ParameterStatus;
-
-                Parameter = reverbParameter;
-
-                if (reverbParameter.IsChannelCountValid())
-                {
-                    IsEnabled = parameter.IsEnabled;
-
-                    if (oldParameterStatus != UsageState.Enabled)
-                    {
-                        Parameter.ParameterStatus = oldParameterStatus;
-                    }
-
-                    if (BufferUnmapped || parameter.IsNew)
-                    {
-                        UsageState = UsageState.New;
-                        Parameter.ParameterStatus = UsageState.Invalid;
-
-                        BufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[0], parameter.BufferBase, parameter.BufferSize);
-                    }
-                }
-            }
-        }
-
-        public override void UpdateForCommandGeneration()
-        {
-            UpdateUsageStateForCommandGeneration();
-
-            Parameter.ParameterStatus = UsageState.Enabled;
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Effect/ReverbEffect.cs b/Ryujinx.Audio.Renderer/Server/Effect/ReverbEffect.cs
deleted file mode 100644
index 4c81f729..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/ReverbEffect.cs
+++ /dev/null
@@ -1,102 +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.Dsp.State;
-using Ryujinx.Audio.Renderer.Parameter;
-using Ryujinx.Audio.Renderer.Parameter.Effect;
-using Ryujinx.Audio.Renderer.Server.MemoryPool;
-using System;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Server.Effect
-{
-    /// <summary>
-    /// Server state for a reverberation effect.
-    /// </summary>
-    public class ReverbEffect : BaseEffect
-    {
-        /// <summary>
-        /// The reverberation parameter.
-        /// </summary>
-        public ReverbParameter Parameter;
-
-        /// <summary>
-        /// The reverberation state.
-        /// </summary>
-        public Memory<ReverbState> State { get; }
-
-        /// <summary>
-        /// Create a new <see cref="ReverbEffect"/>.
-        /// </summary>
-        public ReverbEffect()
-        {
-            State = new ReverbState[1];
-        }
-
-        public override EffectType TargetEffectType => EffectType.Reverb;
-
-        public override ulong GetWorkBuffer(int index)
-        {
-            return GetSingleBuffer();
-        }
-
-        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameter parameter, PoolMapper mapper)
-        {
-            Debug.Assert(IsTypeValid(ref parameter));
-
-            ref ReverbParameter reverbParameter = ref MemoryMarshal.Cast<byte, ReverbParameter>(parameter.SpecificData)[0];
-
-            updateErrorInfo = new BehaviourParameter.ErrorInfo();
-
-            if (reverbParameter.IsChannelCountMaxValid())
-            {
-                UpdateParameterBase(ref parameter);
-
-                UsageState oldParameterStatus = Parameter.Status;
-
-                Parameter = reverbParameter;
-
-                if (reverbParameter.IsChannelCountValid())
-                {
-                    IsEnabled = parameter.IsEnabled;
-
-                    if (oldParameterStatus != UsageState.Enabled)
-                    {
-                        Parameter.Status = oldParameterStatus;
-                    }
-
-                    if (BufferUnmapped || parameter.IsNew)
-                    {
-                        UsageState = UsageState.New;
-                        Parameter.Status = UsageState.Invalid;
-
-                        BufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[0], parameter.BufferBase, parameter.BufferSize);
-                    }
-                }
-            }
-        }
-
-        public override void UpdateForCommandGeneration()
-        {
-            UpdateUsageStateForCommandGeneration();
-
-            Parameter.Status = UsageState.Enabled;
-        }
-    }
-}
diff --git a/Ryujinx.Audio.Renderer/Server/Effect/UsageState.cs b/Ryujinx.Audio.Renderer/Server/Effect/UsageState.cs
deleted file mode 100644
index a519acd4..00000000
--- a/Ryujinx.Audio.Renderer/Server/Effect/UsageState.cs
+++ /dev/null
@@ -1,45 +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/>.
-//
-
-namespace Ryujinx.Audio.Renderer.Server.Effect
-{
-    /// <summary>
-    /// The usage state of an effect.
-    /// </summary>
-    public enum UsageState : byte
-    {
-        /// <summary>
-        /// The effect is in an invalid state.
-        /// </summary>
-        Invalid,
-
-        /// <summary>
-        /// The effect is new.
-        /// </summary>
-        New,
-
-        /// <summary>
-        /// The effect is enabled.
-        /// </summary>
-        Enabled,
-
-        /// <summary>
-        /// The effect is disabled.
-        /// </summary>
-        Disabled
-    }
-}