From f556c80d0230056335632b60c71f1567e177239e Mon Sep 17 00:00:00 2001
From: Mary <me@thog.eu>
Date: Fri, 26 Feb 2021 01:11:56 +0100
Subject: 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
---
 .../Server/Effect/Reverb3dEffect.cs                | 99 ----------------------
 1 file changed, 99 deletions(-)
 delete mode 100644 Ryujinx.Audio.Renderer/Server/Effect/Reverb3dEffect.cs

(limited to 'Ryujinx.Audio.Renderer/Server/Effect/Reverb3dEffect.cs')

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;
-        }
-    }
-}
-- 
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