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

1 files changed, 0 insertions, 112 deletions

diff --git a/Ryujinx.Audio.Renderer/Parameter/MixParameter.cs b/Ryujinx.Audio.Renderer/Parameter/MixParameter.cs
deleted file mode 100644
index 7f45bca6..00000000
--- a/Ryujinx.Audio.Renderer/Parameter/MixParameter.cs
+++ /dev/null
@@ -1,112 +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.Common.Utilities;
-using System;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Parameter
-{
-    /// <summary>
-    /// Input information for a mix.
-    /// </summary>
-    /// <remarks>Also used on the client side for mix tracking.</remarks>
-    [StructLayout(LayoutKind.Sequential, Pack = 1)]
-    public struct MixParameter
-    {
-        /// <summary>
-        /// Base volume of the mix.
-        /// </summary>
-        public float Volume;
-
-        /// <summary>
-        /// Target sample rate of the mix.
-        /// </summary>
-        public uint SampleRate;
-
-        /// <summary>
-        /// Target buffer count.
-        /// </summary>
-        public uint BufferCount;
-
-        /// <summary>
-        /// Set to true if in use.
-        /// </summary>
-        [MarshalAs(UnmanagedType.I1)]
-        public bool IsUsed;
-
-        /// <summary>
-        /// Set to true if it was changed.
-        /// </summary>
-        [MarshalAs(UnmanagedType.I1)]
-        public bool IsDirty;
-
-        /// <summary>
-        /// Reserved/padding.
-        /// </summary>
-        private ushort _reserved1;
-
-        /// <summary>
-        /// The id of the mix.
-        /// </summary>
-        public int MixId;
-
-        /// <summary>
-        /// The effect count. (client side)
-        /// </summary>
-        public uint EffectCount;
-
-        /// <summary>
-        /// The mix node id.
-        /// </summary>
-        public int NodeId;
-
-        /// <summary>
-        /// Reserved/padding.
-        /// </summary>
-        private ulong _reserved2;
-
-        /// <summary>
-        /// Mix buffer volumes storage.
-        /// </summary>
-        private MixVolumeArray _mixBufferVolumeArray;
-
-        /// <summary>
-        /// The mix to output the result of this mix.
-        /// </summary>
-        public int DestinationMixId;
-
-        /// <summary>
-        /// The splitter to output the result of this mix.
-        /// </summary>
-        public uint DestinationSplitterId;
-
-        /// <summary>
-        /// Reserved/padding.
-        /// </summary>
-        private uint _reserved3;
-
-        [StructLayout(LayoutKind.Sequential, Size = 4 * RendererConstants.MixBufferCountMax * RendererConstants.MixBufferCountMax, Pack = 1)]
-        private struct MixVolumeArray { }
-
-        /// <summary>
-        /// Mix buffer volumes.
-        /// </summary>
-        /// <remarks>Used when no splitter id is specified.</remarks>
-        public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixVolumeArray, float>(ref _mixBufferVolumeArray);
-    }
-}