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ryujinx-fork/Ryujinx.Audio.Renderer/Server/Mix/MixState.cs
Mary a389dd59bd
Amadeus: Final Act (#1481)
* Amadeus: Final Act

This is my requiem, I present to you Amadeus, a complete reimplementation of the Audio Renderer!

This reimplementation is based on my reversing of every version of the audio system module that I carried for the past 10 months.
This supports every revision (at the time of writing REV1 to REV8 included) and all features proposed by the Audio Renderer on real hardware.

Because this component could be used outside an emulation context, and to avoid possible "inspirations" not crediting the project, I decided to license the Ryujinx.Audio.Renderer project under LGPLv3.

- FE3H voices in videos and chapter intro are not present.
- Games that use two audio renderer **at the same time** are probably going to have issues right now **until we rewrite the audio output interface** (Crash Team Racing is the only known game to use two renderer at the same time).

- Persona 5 Scrambler now goes ingame but audio is garbage. This is caused by the fact that the game engine is syncing audio and video in a really aggressive way. This will disappears the day this game run at full speed.

* Make timing more precise when sleeping on Windows

Improve precision to a 1ms resolution on Windows NT based OS.
This is used to avoid having totally erratic timings and unify all
Windows users to the same resolution.

NOTE: This is only active when emulation is running.
2020-08-17 22:49:37 -03:00

330 lines
11 KiB
C#

//
// Copyright (c) 2019-2020 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.Common;
using Ryujinx.Audio.Renderer.Parameter;
using Ryujinx.Audio.Renderer.Server.Effect;
using Ryujinx.Audio.Renderer.Server.Splitter;
using Ryujinx.Common.Utilities;
using System;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using static Ryujinx.Audio.Renderer.RendererConstants;
namespace Ryujinx.Audio.Renderer.Server.Mix
{
/// <summary>
/// Server state for a mix.
/// </summary>
[StructLayout(LayoutKind.Sequential, Size = 0x940, Pack = Alignment)]
public struct MixState
{
public const uint InvalidDistanceFromFinalMix = 0x80000000;
public const int Alignment = 0x10;
/// <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>
/// The id of the mix.
/// </summary>
public int MixId;
/// <summary>
/// The mix node id.
/// </summary>
public int NodeId;
/// <summary>
/// the buffer offset to use for command generation.
/// </summary>
public uint BufferOffset;
/// <summary>
/// The distance of the mix from the final mix.
/// </summary>
public uint DistanceFromFinalMix;
/// <summary>
/// The effect processing order storage.
/// </summary>
private IntPtr _effectProcessingOrderArrayPointer;
/// <summary>
/// The max element count that can be found in the effect processing order storage.
/// </summary>
public uint EffectProcessingOrderArrayMaxCount;
/// <summary>
/// The mix to output the result of this mix.
/// </summary>
public int DestinationMixId;
/// <summary>
/// Mix buffer volumes storage.
/// </summary>
private MixVolumeArray _mixVolumeArray;
/// <summary>
/// The splitter to output the result of this mix.
/// </summary>
public uint DestinationSplitterId;
/// <summary>
/// If set to true, the long size pre-delay is supported on the reverb command.
/// </summary>
[MarshalAs(UnmanagedType.I1)]
public bool IsLongSizePreDelaySupported;
[StructLayout(LayoutKind.Sequential, Size = Size, Pack = 1)]
private struct MixVolumeArray
{
private const int Size = 4 * MixBufferCountMax * MixBufferCountMax;
}
/// <summary>
/// Mix buffer volumes.
/// </summary>
/// <remarks>Used when no splitter id is specified.</remarks>
public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixVolumeArray, float>(ref _mixVolumeArray);
/// <summary>
/// Get the volume for a given connection destination.
/// </summary>
/// <param name="sourceIndex">The source node index.</param>
/// <param name="destinationIndex">The destination node index</param>
/// <returns>The volume for the given connection destination.</returns>
public float GetMixBufferVolume(int sourceIndex, int destinationIndex)
{
return MixBufferVolume[sourceIndex * MixBufferCountMax + destinationIndex];
}
/// <summary>
/// The array used to order effects associated to this mix.
/// </summary>
public Span<int> EffectProcessingOrderArray
{
get
{
if (_effectProcessingOrderArrayPointer == IntPtr.Zero)
{
return Span<int>.Empty;
}
unsafe
{
return new Span<int>((void*)_effectProcessingOrderArrayPointer, (int)EffectProcessingOrderArrayMaxCount);
}
}
}
/// <summary>
/// Create a new <see cref="MixState"/>
/// </summary>
/// <param name="effectProcessingOrderArray"></param>
/// <param name="behaviourContext"></param>
public MixState(Memory<int> effectProcessingOrderArray, ref BehaviourContext behaviourContext) : this()
{
MixId = UnusedMixId;
DistanceFromFinalMix = InvalidDistanceFromFinalMix;
DestinationMixId = UnusedMixId;
DestinationSplitterId = UnusedSplitterId;
unsafe
{
// SAFETY: safe as effectProcessingOrderArray comes from the work buffer memory that is pinned.
_effectProcessingOrderArrayPointer = (IntPtr)Unsafe.AsPointer(ref MemoryMarshal.GetReference(effectProcessingOrderArray.Span));
}
EffectProcessingOrderArrayMaxCount = (uint)effectProcessingOrderArray.Length;
IsLongSizePreDelaySupported = behaviourContext.IsLongSizePreDelaySupported();
ClearEffectProcessingOrder();
}
/// <summary>
/// Clear the <see cref="DistanceFromFinalMix"/> value to its default state.
/// </summary>
public void ClearDistanceFromFinalMix()
{
DistanceFromFinalMix = InvalidDistanceFromFinalMix;
}
/// <summary>
/// Clear the <see cref="EffectProcessingOrderArray"/> to its default state.
/// </summary>
public void ClearEffectProcessingOrder()
{
EffectProcessingOrderArray.Fill(-1);
}
/// <summary>
/// Return true if the mix has any destinations.
/// </summary>
/// <returns>True if the mix has any destinations.</returns>
public bool HasAnyDestination()
{
return DestinationMixId != UnusedMixId || DestinationSplitterId != UnusedSplitterId;
}
/// <summary>
/// Update the mix connection on the adjacency matrix.
/// </summary>
/// <param name="edgeMatrix">The adjacency matrix.</param>
/// <param name="parameter">The input parameter of the mix.</param>
/// <param name="splitterContext">The splitter context.</param>
/// <returns>Return true, new connections were done on the adjacency matrix.</returns>
private bool UpdateConnection(EdgeMatrix edgeMatrix, ref MixParameter parameter, ref SplitterContext splitterContext)
{
bool hasNewConnections;
if (DestinationSplitterId == UnusedSplitterId)
{
hasNewConnections = false;
}
else
{
ref SplitterState splitter = ref splitterContext.GetState((int)DestinationSplitterId);
hasNewConnections = splitter.HasNewConnection;
}
if (DestinationMixId == parameter.DestinationMixId && DestinationSplitterId == parameter.DestinationSplitterId && !hasNewConnections)
{
return false;
}
edgeMatrix.RemoveEdges(MixId);
if (parameter.DestinationMixId == UnusedMixId)
{
if (parameter.DestinationSplitterId != UnusedSplitterId)
{
ref SplitterState splitter = ref splitterContext.GetState((int)parameter.DestinationSplitterId);
for (int i = 0; i < splitter.DestinationCount; i++)
{
Span<SplitterDestination> destination = splitter.GetData(i);
if (!destination.IsEmpty)
{
int destinationMixId = destination[0].DestinationId;
if (destinationMixId != UnusedMixId)
{
edgeMatrix.Connect(MixId, destinationMixId);
}
}
}
}
}
else
{
edgeMatrix.Connect(MixId, parameter.DestinationMixId);
}
DestinationMixId = parameter.DestinationMixId;
DestinationSplitterId = parameter.DestinationSplitterId;
return true;
}
/// <summary>
/// Update the mix from user information.
/// </summary>
/// <param name="edgeMatrix">The adjacency matrix.</param>
/// <param name="parameter">The input parameter of the mix.</param>
/// <param name="effectContext">The effect context.</param>
/// <param name="splitterContext">The splitter context.</param>
/// <param name="behaviourContext">The behaviour context.</param>
/// <returns>Return true if the mix was changed.</returns>
public bool Update(EdgeMatrix edgeMatrix, ref MixParameter parameter, EffectContext effectContext, SplitterContext splitterContext, BehaviourContext behaviourContext)
{
bool isDirty;
Volume = parameter.Volume;
SampleRate = parameter.SampleRate;
BufferCount = parameter.BufferCount;
IsUsed = parameter.IsUsed;
MixId = parameter.MixId;
NodeId = parameter.NodeId;
parameter.MixBufferVolume.CopyTo(MixBufferVolume);
if (behaviourContext.IsSplitterSupported())
{
isDirty = UpdateConnection(edgeMatrix, ref parameter, ref splitterContext);
}
else
{
isDirty = DestinationMixId != parameter.DestinationMixId;
if (DestinationMixId != parameter.DestinationMixId)
{
DestinationMixId = parameter.DestinationMixId;
}
DestinationSplitterId = UnusedSplitterId;
}
ClearEffectProcessingOrder();
for (int i = 0; i < effectContext.GetCount(); i++)
{
ref BaseEffect effect = ref effectContext.GetEffect(i);
if (effect.MixId == MixId)
{
Debug.Assert(effect.ProcessingOrder <= EffectProcessingOrderArrayMaxCount);
if (effect.ProcessingOrder > EffectProcessingOrderArrayMaxCount)
{
return isDirty;
}
EffectProcessingOrderArray[(int)effect.ProcessingOrder] = i;
}
}
return isDirty;
}
}
}