mirror of
https://github.com/ryujinx-mirror/ryujinx.git
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284 lines
13 KiB
C#
284 lines
13 KiB
C#
//
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// Copyright (c) 2019-2021 Ryujinx
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//
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using Ryujinx.Audio.Renderer.Dsp.State;
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using Ryujinx.Audio.Renderer.Parameter.Effect;
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using System;
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using System.Diagnostics;
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namespace Ryujinx.Audio.Renderer.Dsp.Command
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{
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public class ReverbCommand : ICommand
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{
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private static readonly int[] OutputEarlyIndicesTableMono = new int[10] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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private static readonly int[] TargetEarlyDelayLineIndicesTableMono = new int[10] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
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private static readonly int[] OutputIndicesTableMono = new int[4] { 0, 0, 0, 0 };
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private static readonly int[] TargetOutputFeedbackIndicesTableMono = new int[4] { 0, 1, 2, 3 };
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private static readonly int[] OutputEarlyIndicesTableStereo = new int[10] { 0, 0, 1, 1, 0, 1, 0, 0, 1, 1 };
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private static readonly int[] TargetEarlyDelayLineIndicesTableStereo = new int[10] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
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private static readonly int[] OutputIndicesTableStereo = new int[4] { 0, 0, 1, 1 };
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private static readonly int[] TargetOutputFeedbackIndicesTableStereo = new int[4] { 2, 0, 3, 1 };
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private static readonly int[] OutputEarlyIndicesTableQuadraphonic = new int[10] { 0, 0, 1, 1, 0, 1, 2, 2, 3, 3 };
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private static readonly int[] TargetEarlyDelayLineIndicesTableQuadraphonic = new int[10] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
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private static readonly int[] OutputIndicesTableQuadraphonic = new int[4] { 0, 1, 2, 3 };
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private static readonly int[] TargetOutputFeedbackIndicesTableQuadraphonic = new int[4] { 0, 1, 2, 3 };
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private static readonly int[] OutputEarlyIndicesTableSurround = new int[20] { 0, 5, 0, 5, 1, 5, 1, 5, 4, 5, 4, 5, 2, 5, 2, 5, 3, 5, 3, 5 };
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private static readonly int[] TargetEarlyDelayLineIndicesTableSurround = new int[20] { 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9 };
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private static readonly int[] OutputIndicesTableSurround = new int[RendererConstants.ChannelCountMax] { 0, 1, 2, 3, 4, 5 };
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private static readonly int[] TargetOutputFeedbackIndicesTableSurround = new int[RendererConstants.ChannelCountMax] { 0, 1, 2, 3, -1, 3 };
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public bool Enabled { get; set; }
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public int NodeId { get; }
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public CommandType CommandType => CommandType.Reverb;
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public ulong EstimatedProcessingTime { get; set; }
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public ReverbParameter Parameter => _parameter;
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public Memory<ReverbState> State { get; }
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public ulong WorkBuffer { get; }
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public ushort[] OutputBufferIndices { get; }
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public ushort[] InputBufferIndices { get; }
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public bool IsLongSizePreDelaySupported { get; }
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public bool IsEffectEnabled { get; }
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private ReverbParameter _parameter;
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private const int FixedPointPrecision = 14;
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public ReverbCommand(uint bufferOffset, ReverbParameter parameter, Memory<ReverbState> state, bool isEnabled, ulong workBuffer, int nodeId, bool isLongSizePreDelaySupported)
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{
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Enabled = true;
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IsEffectEnabled = isEnabled;
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NodeId = nodeId;
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_parameter = parameter;
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State = state;
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WorkBuffer = workBuffer;
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InputBufferIndices = new ushort[RendererConstants.VoiceChannelCountMax];
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OutputBufferIndices = new ushort[RendererConstants.VoiceChannelCountMax];
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for (int i = 0; i < Parameter.ChannelCount; i++)
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{
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InputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Input[i]);
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OutputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Output[i]);
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}
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IsLongSizePreDelaySupported = isLongSizePreDelaySupported;
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}
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private void ProcessReverbMono(Memory<float>[] outputBuffers, ReadOnlyMemory<float>[] inputBuffers, uint sampleCount)
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{
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ProcessReverbGeneric(outputBuffers,
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inputBuffers,
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sampleCount,
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OutputEarlyIndicesTableMono,
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TargetEarlyDelayLineIndicesTableMono,
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TargetOutputFeedbackIndicesTableMono,
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OutputIndicesTableMono);
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}
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private void ProcessReverbStereo(Memory<float>[] outputBuffers, ReadOnlyMemory<float>[] inputBuffers, uint sampleCount)
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{
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ProcessReverbGeneric(outputBuffers,
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inputBuffers,
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sampleCount,
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OutputEarlyIndicesTableStereo,
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TargetEarlyDelayLineIndicesTableStereo,
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TargetOutputFeedbackIndicesTableStereo,
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OutputIndicesTableStereo);
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}
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private void ProcessReverbQuadraphonic(Memory<float>[] outputBuffers, ReadOnlyMemory<float>[] inputBuffers, uint sampleCount)
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{
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ProcessReverbGeneric(outputBuffers,
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inputBuffers,
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sampleCount,
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OutputEarlyIndicesTableQuadraphonic,
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TargetEarlyDelayLineIndicesTableQuadraphonic,
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TargetOutputFeedbackIndicesTableQuadraphonic,
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OutputIndicesTableQuadraphonic);
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}
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private void ProcessReverbSurround(Memory<float>[] outputBuffers, ReadOnlyMemory<float>[] inputBuffers, uint sampleCount)
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{
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ProcessReverbGeneric(outputBuffers,
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inputBuffers,
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sampleCount,
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OutputEarlyIndicesTableSurround,
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TargetEarlyDelayLineIndicesTableSurround,
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TargetOutputFeedbackIndicesTableSurround,
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OutputIndicesTableSurround);
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}
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private void ProcessReverbGeneric(Memory<float>[] outputBuffers, ReadOnlyMemory<float>[] inputBuffers, uint sampleCount, ReadOnlySpan<int> outputEarlyIndicesTable, ReadOnlySpan<int> targetEarlyDelayLineIndicesTable, ReadOnlySpan<int> targetOutputFeedbackIndicesTable, ReadOnlySpan<int> outputIndicesTable)
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{
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ref ReverbState state = ref State.Span[0];
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bool isSurround = Parameter.ChannelCount == 6;
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float reverbGain = FixedPointHelper.ToFloat(Parameter.ReverbGain, FixedPointPrecision);
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float lateGain = FixedPointHelper.ToFloat(Parameter.LateGain, FixedPointPrecision);
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float outGain = FixedPointHelper.ToFloat(Parameter.OutGain, FixedPointPrecision);
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float dryGain = FixedPointHelper.ToFloat(Parameter.DryGain, FixedPointPrecision);
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float[] outputValues = new float[RendererConstants.ChannelCountMax];
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float[] feedbackValues = new float[4];
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float[] feedbackOutputValues = new float[4];
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float[] channelInput = new float[Parameter.ChannelCount];
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for (int sampleIndex = 0; sampleIndex < sampleCount; sampleIndex++)
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{
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outputValues.AsSpan().Fill(0);
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for (int i = 0; i < targetEarlyDelayLineIndicesTable.Length; i++)
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{
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int earlyDelayIndex = targetEarlyDelayLineIndicesTable[i];
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int outputIndex = outputEarlyIndicesTable[i];
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float tapOutput = state.PreDelayLine.TapUnsafe(state.EarlyDelayTime[earlyDelayIndex], 0);
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outputValues[outputIndex] += tapOutput * state.EarlyGain[earlyDelayIndex];
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}
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if (isSurround)
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{
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outputValues[5] *= 0.2f;
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}
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float targetPreDelayValue = 0;
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for (int channelIndex = 0; channelIndex < Parameter.ChannelCount; channelIndex++)
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{
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channelInput[channelIndex] = inputBuffers[channelIndex].Span[sampleIndex] * 64;
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targetPreDelayValue += channelInput[channelIndex] * reverbGain;
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}
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state.PreDelayLine.Update(targetPreDelayValue);
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float lateValue = state.PreDelayLine.Tap(state.PreDelayLineDelayTime) * lateGain;
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for (int i = 0; i < state.FdnDelayLines.Length; i++)
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{
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feedbackOutputValues[i] = state.FdnDelayLines[i].Read() * state.HighFrequencyDecayDirectGain[i] + state.PreviousFeedbackOutput[i] * state.HighFrequencyDecayPreviousGain[i];
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state.PreviousFeedbackOutput[i] = feedbackOutputValues[i];
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}
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feedbackValues[0] = feedbackOutputValues[2] + feedbackOutputValues[1];
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feedbackValues[1] = -feedbackOutputValues[0] - feedbackOutputValues[3];
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feedbackValues[2] = feedbackOutputValues[0] - feedbackOutputValues[3];
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feedbackValues[3] = feedbackOutputValues[1] - feedbackOutputValues[2];
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for (int i = 0; i < state.FdnDelayLines.Length; i++)
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{
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feedbackOutputValues[i] = state.DecayDelays[i].Update(feedbackValues[i] + lateValue);
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state.FdnDelayLines[i].Update(feedbackOutputValues[i]);
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}
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for (int i = 0; i < targetOutputFeedbackIndicesTable.Length; i++)
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{
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int targetOutputFeedbackIndex = targetOutputFeedbackIndicesTable[i];
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int outputIndex = outputIndicesTable[i];
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if (targetOutputFeedbackIndex >= 0)
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{
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outputValues[outputIndex] += feedbackOutputValues[targetOutputFeedbackIndex];
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}
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}
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if (isSurround)
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{
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outputValues[4] += state.BackLeftDelayLine.Update((feedbackOutputValues[2] - feedbackOutputValues[3]) * 0.5f);
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}
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for (int channelIndex = 0; channelIndex < Parameter.ChannelCount; channelIndex++)
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{
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outputBuffers[channelIndex].Span[sampleIndex] = (outputValues[channelIndex] * outGain + channelInput[channelIndex] * dryGain) / 64;
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}
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}
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}
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private void ProcessReverb(CommandList context)
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{
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Debug.Assert(Parameter.IsChannelCountValid());
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if (IsEffectEnabled && Parameter.IsChannelCountValid())
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{
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ReadOnlyMemory<float>[] inputBuffers = new ReadOnlyMemory<float>[Parameter.ChannelCount];
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Memory<float>[] outputBuffers = new Memory<float>[Parameter.ChannelCount];
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for (int i = 0; i < Parameter.ChannelCount; i++)
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{
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inputBuffers[i] = context.GetBufferMemory(InputBufferIndices[i]);
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outputBuffers[i] = context.GetBufferMemory(OutputBufferIndices[i]);
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}
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switch (Parameter.ChannelCount)
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{
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case 1:
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ProcessReverbMono(outputBuffers, inputBuffers, context.SampleCount);
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break;
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case 2:
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ProcessReverbStereo(outputBuffers, inputBuffers, context.SampleCount);
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break;
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case 4:
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ProcessReverbQuadraphonic(outputBuffers, inputBuffers, context.SampleCount);
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break;
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case 6:
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ProcessReverbSurround(outputBuffers, inputBuffers, context.SampleCount);
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break;
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default:
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throw new NotImplementedException($"{Parameter.ChannelCount}");
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}
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}
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else
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{
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for (int i = 0; i < Parameter.ChannelCount; i++)
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{
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if (InputBufferIndices[i] != OutputBufferIndices[i])
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{
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context.GetBufferMemory(InputBufferIndices[i]).CopyTo(context.GetBufferMemory(OutputBufferIndices[i]));
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}
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}
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}
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}
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public void Process(CommandList context)
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{
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ref ReverbState state = ref State.Span[0];
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if (IsEffectEnabled)
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{
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if (Parameter.Status == Server.Effect.UsageState.Invalid)
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{
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state = new ReverbState(ref _parameter, WorkBuffer, IsLongSizePreDelaySupported);
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}
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else if (Parameter.Status == Server.Effect.UsageState.New)
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{
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state.UpdateParameter(ref _parameter);
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}
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}
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ProcessReverb(context);
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}
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}
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}
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