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ryujinx-final/Ryujinx.Audio/Renderer/Dsp/Command/DeviceSinkCommand.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

108 lines
3.5 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.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)
{
IHardwareDevice device = context.OutputDevice;
if (device.GetSampleRate() == Constants.TargetSampleRate)
{
int channelCount = (int)device.GetChannelCount();
uint bufferCount = Math.Min(device.GetChannelCount(), InputCount);
const int sampleCount = Constants.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();
}
}
}
}