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, 121 deletions

diff --git a/Ryujinx.Audio.Renderer/Common/VoiceUpdateState.cs b/Ryujinx.Audio.Renderer/Common/VoiceUpdateState.cs
deleted file mode 100644
index b455ff5c..00000000
--- a/Ryujinx.Audio.Renderer/Common/VoiceUpdateState.cs
+++ /dev/null
@@ -1,121 +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.Dsp.State;
-using Ryujinx.Common.Memory;
-using Ryujinx.Common.Utilities;
-using System;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Common
-{
-    /// <summary>
-    /// Represent the update state of a voice.
-    /// </summary>
-    /// <remarks>This is shared between the server and audio processor.</remarks>
-    [StructLayout(LayoutKind.Sequential, Pack = Align)]
-    public struct VoiceUpdateState
-    {
-        public const int Align = 0x10;
-        public const int BiquadStateOffset = 0x0;
-        public const int BiquadStateSize = 0x10;
-
-        /// <summary>
-        /// The state of the biquad filters of this voice.
-        /// </summary>
-        public Array2<BiquadFilterState> BiquadFilterState;
-
-        /// <summary>
-        /// The total amount of samples that was played.
-        /// </summary>
-        /// <remarks>This is reset to 0 when a <see cref="WaveBuffer"/> finishes playing and <see cref="WaveBuffer.IsEndOfStream"/> is set.</remarks>
-        /// <remarks>This is reset to 0 when looping while <see cref="Parameter.VoiceInParameter.DecodingBehaviour.PlayedSampleCountResetWhenLooping"/> is set.</remarks>
-        public ulong PlayedSampleCount;
-
-        /// <summary>
-        /// The current sample offset in the <see cref="WaveBuffer"/> pointed by <see cref="WaveBufferIndex"/>.
-        /// </summary>
-        public int Offset;
-
-        /// <summary>
-        /// The current index of the <see cref="WaveBuffer"/> in use.
-        /// </summary>
-        public uint WaveBufferIndex;
-
-        private WaveBufferValidArray _isWaveBufferValid;
-
-        /// <summary>
-        /// The total amount of <see cref="WaveBuffer"/> consumed.
-        /// </summary>
-        public uint WaveBufferConsumed;
-
-        /// <summary>
-        /// Pitch used for Sample Rate Conversion.
-        /// </summary>
-        public Array8<short> Pitch;
-
-        public float Fraction;
-
-        /// <summary>
-        /// The ADPCM loop context when <see cref="SampleFormat.Adpcm"/> is in use.
-        /// </summary>
-        public AdpcmLoopContext LoopContext;
-
-        /// <summary>
-        /// The last samples after a mix ramp.
-        /// </summary>
-        /// <remarks>This is used for depop (to perform voice drop).</remarks>
-        public Array24<float> LastSamples;
-
-        /// <summary>
-        /// The current count of loop performed.
-        /// </summary>
-        public int LoopCount;
-
-        [StructLayout(LayoutKind.Sequential, Size = 1 * RendererConstants.VoiceWaveBufferCount, Pack = 1)]
-        private struct WaveBufferValidArray { }
-
-        /// <summary>
-        /// Contains information of <see cref="WaveBuffer"/> validity.
-        /// </summary>
-        public Span<bool> IsWaveBufferValid => SpanHelpers.AsSpan<WaveBufferValidArray, bool>(ref _isWaveBufferValid);
-
-        /// <summary>
-        /// Mark the current <see cref="WaveBuffer"/> as played and switch to the next one.
-        /// </summary>
-        /// <param name="waveBuffer">The current <see cref="WaveBuffer"/></param>
-        /// <param name="waveBufferIndex">The wavebuffer index.</param>
-        /// <param name="waveBufferConsumed">The amount of wavebuffers consumed.</param>
-        /// <param name="playedSampleCount">The total count of sample played.</param>
-        public void MarkEndOfBufferWaveBufferProcessing(ref WaveBuffer waveBuffer, ref int waveBufferIndex, ref uint waveBufferConsumed, ref ulong playedSampleCount)
-        {
-            IsWaveBufferValid[waveBufferIndex++] = false;
-            LoopCount = 0;
-            waveBufferConsumed++;
-
-            if (waveBufferIndex >= RendererConstants.VoiceWaveBufferCount)
-            {
-                waveBufferIndex = 0;
-            }
-
-            if (waveBuffer.IsEndOfStream)
-            {
-                playedSampleCount = 0;
-            }
-        }
-    }
-}