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, 108 deletions

diff --git a/Ryujinx.Audio.Renderer/Dsp/Command/DeviceSinkCommand.cs b/Ryujinx.Audio.Renderer/Dsp/Command/DeviceSinkCommand.cs
deleted file mode 100644
index 621e0269..00000000
--- a/Ryujinx.Audio.Renderer/Dsp/Command/DeviceSinkCommand.cs
+++ /dev/null
@@ -1,108 +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.Integration;
-using Ryujinx.Audio.Renderer.Server.Sink;
-using System;
-using System.Runtime.CompilerServices;
-using System.Text;
-
-namespace Ryujinx.Audio.Renderer.Dsp.Command
-{
-    public class DeviceSinkCommand : ICommand
-    {
-        public bool Enabled { get; set; }
-
-        public int NodeId { get; }
-
-        public CommandType CommandType => CommandType.DeviceSink;
-
-        public ulong EstimatedProcessingTime { get; set; }
-
-        public string DeviceName { get; }
-
-        public int SessionId { get; }
-
-        public uint InputCount { get; }
-        public ushort[] InputBufferIndices { get; }
-
-        public Memory<float> Buffers { get; }
-
-        public DeviceSinkCommand(uint bufferOffset, DeviceSink sink, int sessionId, Memory<float> buffers, int nodeId)
-        {
-            Enabled = true;
-            NodeId = nodeId;
-
-            DeviceName = Encoding.ASCII.GetString(sink.Parameter.DeviceName).TrimEnd('\0');
-            SessionId = sessionId;
-            InputCount = sink.Parameter.InputCount;
-            InputBufferIndices = new ushort[InputCount];
-
-            for (int i = 0; i < InputCount; i++)
-            {
-                InputBufferIndices[i] = (ushort)(bufferOffset + sink.Parameter.Input[i]);
-            }
-
-            if (sink.UpsamplerState != null)
-            {
-                Buffers = sink.UpsamplerState.OutputBuffer;
-            }
-            else
-            {
-                Buffers = buffers;
-            }
-        }
-
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private Span<float> GetBuffer(int index, int sampleCount)
-        {
-            return Buffers.Span.Slice(index * sampleCount, sampleCount);
-        }
-
-        public void Process(CommandList context)
-        {
-            HardwareDevice device = context.OutputDevice;
-
-            if (device.GetSampleRate() == RendererConstants.TargetSampleRate)
-            {
-                int channelCount = (int)device.GetChannelCount();
-                uint bufferCount = Math.Min(device.GetChannelCount(), InputCount);
-
-                const int sampleCount = RendererConstants.TargetSampleCount;
-
-                short[] outputBuffer = new short[bufferCount * sampleCount];
-
-                for (int i = 0; i < bufferCount; i++)
-                {
-                    ReadOnlySpan<float> inputBuffer = GetBuffer(InputBufferIndices[i], sampleCount);
-
-                    for (int j = 0; j < sampleCount; j++)
-                    {
-                        outputBuffer[i + j * channelCount] = PcmHelper.Saturate(inputBuffer[j]);
-                    }
-                }
-
-                device.AppendBuffer(outputBuffer, InputCount);
-            }
-            else
-            {
-                // TODO: support resampling for device only supporting something different
-                throw new NotImplementedException();
-            }
-        }
-    }
-}