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Ryujinx/Ryujinx.Audio/Renderer/Dsp/Command/CircularBufferSinkCommand.cs
Mary f556c80d02
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
2021-02-26 01:11:56 +01:00

91 lines
3 KiB
C#

//
// 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.Parameter.Sink;
using Ryujinx.Audio.Renderer.Server.MemoryPool;
using System;
using System.Diagnostics;
namespace Ryujinx.Audio.Renderer.Dsp.Command
{
public class CircularBufferSinkCommand : ICommand
{
public bool Enabled { get; set; }
public int NodeId { get; }
public CommandType CommandType => CommandType.CircularBufferSink;
public ulong EstimatedProcessingTime { get; set; }
public ushort[] Input { get; }
public uint InputCount { get; }
public ulong CircularBuffer { get; }
public ulong CircularBufferSize { get; }
public ulong CurrentOffset { get; }
public CircularBufferSinkCommand(uint bufferOffset, ref CircularBufferParameter parameter, ref AddressInfo circularBufferAddressInfo, uint currentOffset, int nodeId)
{
Enabled = true;
NodeId = nodeId;
Input = new ushort[Constants.ChannelCountMax];
InputCount = parameter.InputCount;
for (int i = 0; i < InputCount; i++)
{
Input[i] = (ushort)(bufferOffset + parameter.Input[i]);
}
CircularBuffer = circularBufferAddressInfo.GetReference(true);
CircularBufferSize = parameter.BufferSize;
CurrentOffset = currentOffset;
Debug.Assert(CircularBuffer != 0);
}
public void Process(CommandList context)
{
const int targetChannelCount = 2;
ulong currentOffset = CurrentOffset;
if (CircularBufferSize > 0)
{
for (int i = 0; i < InputCount; i++)
{
ReadOnlySpan<float> inputBuffer = context.GetBuffer(Input[i]);
ulong targetOffset = CircularBuffer + currentOffset;
for (int y = 0; y < context.SampleCount; y++)
{
context.MemoryManager.Write(targetOffset + (ulong)y * targetChannelCount, PcmHelper.Saturate(inputBuffer[y]));
}
currentOffset += context.SampleCount * targetChannelCount;
if (currentOffset >= CircularBufferSize)
{
currentOffset = 0;
}
}
}
}
}
}