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, 272 deletions

diff --git a/Ryujinx.Audio.Renderer/Dsp/Command/DelayCommand.cs b/Ryujinx.Audio.Renderer/Dsp/Command/DelayCommand.cs
deleted file mode 100644
index 54234a93..00000000
--- a/Ryujinx.Audio.Renderer/Dsp/Command/DelayCommand.cs
+++ /dev/null
@@ -1,272 +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.Audio.Renderer.Parameter.Effect;
-using Ryujinx.Audio.Renderer.Server.Effect;
-using System;
-using System.Diagnostics;
-
-namespace Ryujinx.Audio.Renderer.Dsp.Command
-{
-    public class DelayCommand : ICommand
-    {
-        public bool Enabled { get; set; }
-
-        public int NodeId { get; }
-
-        public CommandType CommandType => CommandType.Delay;
-
-        public ulong EstimatedProcessingTime { get; set; }
-
-        public DelayParameter Parameter => _parameter;
-        public Memory<DelayState> State { get; }
-        public ulong WorkBuffer { get; }
-        public ushort[] OutputBufferIndices { get; }
-        public ushort[] InputBufferIndices { get; }
-        public bool IsEffectEnabled { get; }
-
-        private DelayParameter _parameter;
-
-        private const int FixedPointPrecision = 14;
-
-        public DelayCommand(uint bufferOffset, DelayParameter parameter, Memory<DelayState> state, bool isEnabled, ulong workBuffer, int nodeId)
-        {
-            Enabled = true;
-            NodeId = nodeId;
-            _parameter = parameter;
-            State = state;
-            WorkBuffer = workBuffer;
-
-            IsEffectEnabled = isEnabled;
-
-            InputBufferIndices = new ushort[RendererConstants.VoiceChannelCountMax];
-            OutputBufferIndices = new ushort[RendererConstants.VoiceChannelCountMax];
-
-            for (int i = 0; i < Parameter.ChannelCount; i++)
-            {
-                InputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Input[i]);
-                OutputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Output[i]);
-            }
-        }
-
-        private void ProcessDelayMono(Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, uint sampleCount)
-        {
-            ref DelayState state = ref State.Span[0];
-
-            float feedbackGain = FixedPointHelper.ToFloat(Parameter.FeedbackGain, FixedPointPrecision);
-            float inGain = FixedPointHelper.ToFloat(Parameter.InGain, FixedPointPrecision);
-            float dryGain = FixedPointHelper.ToFloat(Parameter.DryGain, FixedPointPrecision);
-            float outGain = FixedPointHelper.ToFloat(Parameter.OutGain, FixedPointPrecision);
-
-            for (int i = 0; i < sampleCount; i++)
-            {
-                float input = inputBuffer[i] * 64;
-                float delayLineValue = state.DelayLines[0].Read();
-
-                float lowPassResult = input * inGain + delayLineValue * feedbackGain * state.LowPassBaseGain + state.LowPassZ[0] * state.LowPassFeedbackGain;
-
-                state.LowPassZ[0] = lowPassResult;
-
-                state.DelayLines[0].Update(lowPassResult);
-
-                outputBuffer[i] = (input * dryGain + delayLineValue * outGain) / 64;
-            }
-        }
-
-        private void ProcessDelayStereo(Memory<float>[] outputBuffers, ReadOnlyMemory<float>[] inputBuffers, uint sampleCount)
-        {
-            ref DelayState state = ref State.Span[0];
-
-            float[] channelInput = new float[Parameter.ChannelCount];
-            float[] delayLineValues = new float[Parameter.ChannelCount];
-            float[] temp = new float[Parameter.ChannelCount];
-
-            float delayFeedbackBaseGain = state.DelayFeedbackBaseGain;
-            float delayFeedbackCrossGain = state.DelayFeedbackCrossGain;
-            float inGain = FixedPointHelper.ToFloat(Parameter.InGain, FixedPointPrecision);
-            float dryGain = FixedPointHelper.ToFloat(Parameter.DryGain, FixedPointPrecision);
-            float outGain = FixedPointHelper.ToFloat(Parameter.OutGain, FixedPointPrecision);
-
-            for (int i = 0; i < sampleCount; i++)
-            {
-                for (int j = 0; j < Parameter.ChannelCount; j++)
-                {
-                    channelInput[j] = inputBuffers[j].Span[i] * 64;
-                    delayLineValues[j] = state.DelayLines[j].Read();
-                }
-
-                temp[0] = channelInput[0] * inGain + delayLineValues[1] * delayFeedbackCrossGain + delayLineValues[0] * delayFeedbackBaseGain;
-                temp[1] = channelInput[1] * inGain + delayLineValues[0] * delayFeedbackCrossGain + delayLineValues[1] * delayFeedbackBaseGain;
-
-                for (int j = 0; j < Parameter.ChannelCount; j++)
-                {
-                    float lowPassResult = state.LowPassFeedbackGain * state.LowPassZ[j] + temp[j] * state.LowPassBaseGain;
-
-                    state.LowPassZ[j] = lowPassResult;
-                    state.DelayLines[j].Update(lowPassResult);
-
-                    outputBuffers[j].Span[i] = (channelInput[j] * dryGain + delayLineValues[j] * outGain) / 64;
-                }
-            }
-        }
-
-        private void ProcessDelayQuadraphonic(Memory<float>[] outputBuffers, ReadOnlyMemory<float>[] inputBuffers, uint sampleCount)
-        {
-            ref DelayState state = ref State.Span[0];
-
-            float[] channelInput = new float[Parameter.ChannelCount];
-            float[] delayLineValues = new float[Parameter.ChannelCount];
-            float[] temp = new float[Parameter.ChannelCount];
-
-            float delayFeedbackBaseGain = state.DelayFeedbackBaseGain;
-            float delayFeedbackCrossGain = state.DelayFeedbackCrossGain;
-            float inGain = FixedPointHelper.ToFloat(Parameter.InGain, FixedPointPrecision);
-            float dryGain = FixedPointHelper.ToFloat(Parameter.DryGain, FixedPointPrecision);
-            float outGain = FixedPointHelper.ToFloat(Parameter.OutGain, FixedPointPrecision);
-
-            for (int i = 0; i < sampleCount; i++)
-            {
-                for (int j = 0; j < Parameter.ChannelCount; j++)
-                {
-                    channelInput[j] = inputBuffers[j].Span[i] * 64;
-                    delayLineValues[j] = state.DelayLines[j].Read();
-                }
-
-                temp[0] = channelInput[0] * inGain + (delayLineValues[2] + delayLineValues[1]) * delayFeedbackCrossGain + delayLineValues[0] * delayFeedbackBaseGain;
-                temp[1] = channelInput[1] * inGain + (delayLineValues[0] + delayLineValues[3]) * delayFeedbackCrossGain + delayLineValues[1] * delayFeedbackBaseGain;
-                temp[2] = channelInput[2] * inGain + (delayLineValues[3] + delayLineValues[0]) * delayFeedbackCrossGain + delayLineValues[2] * delayFeedbackBaseGain;
-                temp[3] = channelInput[3] * inGain + (delayLineValues[1] + delayLineValues[2]) * delayFeedbackCrossGain + delayLineValues[3] * delayFeedbackBaseGain;
-
-                for (int j = 0; j < Parameter.ChannelCount; j++)
-                {
-                    float lowPassResult = state.LowPassFeedbackGain * state.LowPassZ[j] + temp[j] * state.LowPassBaseGain;
-
-                    state.LowPassZ[j] = lowPassResult;
-                    state.DelayLines[j].Update(lowPassResult);
-
-                    outputBuffers[j].Span[i] = (channelInput[j] * dryGain + delayLineValues[j] * outGain) / 64;
-                }
-            }
-        }
-
-        private void ProcessDelaySurround(Memory<float>[] outputBuffers, ReadOnlyMemory<float>[] inputBuffers, uint sampleCount)
-        {
-            ref DelayState state = ref State.Span[0];
-
-            float[] channelInput = new float[Parameter.ChannelCount];
-            float[] delayLineValues = new float[Parameter.ChannelCount];
-            float[] temp = new float[Parameter.ChannelCount];
-
-            float delayFeedbackBaseGain = state.DelayFeedbackBaseGain;
-            float delayFeedbackCrossGain = state.DelayFeedbackCrossGain;
-            float inGain = FixedPointHelper.ToFloat(Parameter.InGain, FixedPointPrecision);
-            float dryGain = FixedPointHelper.ToFloat(Parameter.DryGain, FixedPointPrecision);
-            float outGain = FixedPointHelper.ToFloat(Parameter.OutGain, FixedPointPrecision);
-
-            for (int i = 0; i < sampleCount; i++)
-            {
-                for (int j = 0; j < Parameter.ChannelCount; j++)
-                {
-                    channelInput[j] = inputBuffers[j].Span[i] * 64;
-                    delayLineValues[j] = state.DelayLines[j].Read();
-                }
-
-                temp[0] = channelInput[0] * inGain + (delayLineValues[2] + delayLineValues[4]) * delayFeedbackCrossGain + delayLineValues[0] * delayFeedbackBaseGain;
-                temp[1] = channelInput[1] * inGain + (delayLineValues[4] + delayLineValues[3]) * delayFeedbackCrossGain + delayLineValues[1] * delayFeedbackBaseGain;
-                temp[2] = channelInput[2] * inGain + (delayLineValues[3] + delayLineValues[0]) * delayFeedbackCrossGain + delayLineValues[2] * delayFeedbackBaseGain;
-                temp[3] = channelInput[3] * inGain + (delayLineValues[1] + delayLineValues[2]) * delayFeedbackCrossGain + delayLineValues[3] * delayFeedbackBaseGain;
-                temp[4] = channelInput[4] * inGain + (delayLineValues[0] + delayLineValues[1]) * delayFeedbackCrossGain + delayLineValues[4] * delayFeedbackBaseGain;
-                temp[5] = channelInput[5] * inGain + delayLineValues[5] * delayFeedbackBaseGain;
-
-                for (int j = 0; j < Parameter.ChannelCount; j++)
-                {
-                    float lowPassResult = state.LowPassFeedbackGain * state.LowPassZ[j] + temp[j] * state.LowPassBaseGain;
-
-                    state.LowPassZ[j] = lowPassResult;
-                    state.DelayLines[j].Update(lowPassResult);
-
-                    outputBuffers[j].Span[i] = (channelInput[j] * dryGain + delayLineValues[j] * outGain) / 64;
-                }
-            }
-        }
-
-        private void ProcessDelay(CommandList context)
-        {
-            Debug.Assert(Parameter.IsChannelCountValid());
-
-            if (IsEffectEnabled && Parameter.IsChannelCountValid())
-            {
-                ReadOnlyMemory<float>[] inputBuffers = new ReadOnlyMemory<float>[Parameter.ChannelCount];
-                Memory<float>[] outputBuffers = new Memory<float>[Parameter.ChannelCount];
-
-                for (int i = 0; i < Parameter.ChannelCount; i++)
-                {
-                    inputBuffers[i] = context.GetBufferMemory(InputBufferIndices[i]);
-                    outputBuffers[i] = context.GetBufferMemory(OutputBufferIndices[i]);
-                }
-
-                switch (Parameter.ChannelCount)
-                {
-                    case 1:
-                        ProcessDelayMono(outputBuffers[0].Span, inputBuffers[0].Span, context.SampleCount);
-                        break;
-                    case 2:
-                        ProcessDelayStereo(outputBuffers, inputBuffers, context.SampleCount);
-                        break;
-                    case 4:
-                        ProcessDelayQuadraphonic(outputBuffers, inputBuffers, context.SampleCount);
-                        break;
-                    case 6:
-                        ProcessDelaySurround(outputBuffers, inputBuffers, context.SampleCount);
-                        break;
-                    default:
-                        throw new NotImplementedException($"{Parameter.ChannelCount}");
-                }
-            }
-            else
-            {
-                for (int i = 0; i < Parameter.ChannelCount; i++)
-                {
-                    if (InputBufferIndices[i] != OutputBufferIndices[i])
-                    {
-                        context.GetBufferMemory(InputBufferIndices[i]).CopyTo(context.GetBufferMemory(OutputBufferIndices[i]));
-                    }
-                }
-            }
-        }
-
-        public void Process(CommandList context)
-        {
-            ref DelayState state = ref State.Span[0];
-
-            if (IsEffectEnabled)
-            {
-                if (Parameter.Status == UsageState.Invalid)
-                {
-                    state = new DelayState(ref _parameter, WorkBuffer);
-                }
-                else if (Parameter.Status == UsageState.New)
-                {
-                    state.UpdateParameter(ref _parameter);
-                }
-            }
-
-            ProcessDelay(context);
-        }
-    }
-}