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Midi optimizations. (#1045)

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This commit is contained in:
Víctor Aguilera Puerto
2020-05-05 14:50:04 +02:00
committed by GitHub
parent f8e7ded2f0
commit 5d4e3ebf9d
1 changed files with 20 additions and 20 deletions
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40
Robust.Client/Audio/Midi/MidiRenderer.cs
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@@ -141,7 +141,7 @@ namespace Robust.Client.Audio.Midi
private int _midiprogram = 1;
private bool _loopMidi = false;
private const int SampleRate = 48000;
private const int Buffers = SampleRate/1000;
private const int Buffers = SampleRate/12000;
private readonly object _playerStateLock = new object();
public IClydeBufferedAudioSource Source { get; set; }
public IReadOnlyCollection<int> NotesPlaying => _notesPlaying;
@@ -284,7 +284,7 @@ namespace Robust.Client.Audio.Midi
public event Action<Shared.Audio.Midi.MidiEvent> OnMidiEvent;
public event Action OnMidiPlayerFinished;
internal void Render(int length = SampleRate/1000)
internal void Render(int length = SampleRate/128)
{
if (Disposed) return;
var buffersProcessed = Source.GetNumberOfBuffersProcessed();
@@ -294,31 +294,31 @@ namespace Robust.Client.Audio.Midi
unsafe
{
Span<uint> buffers = stackalloc uint[buffersProcessed];
Span<ushort> audio = stackalloc ushort[bufferLength];
Span<ushort> audio = stackalloc ushort[bufferLength*buffers.Length];
Source.GetBuffersProcessed(buffers);
lock(_playerStateLock)
_synth?.WriteSample16(length*buffers.Length, audio, 0, Mono ? 1 : 2,
audio, Mono ? length*buffers.Length : 1, Mono ? 1 : 2);
if (Mono) // Turn audio to mono
{
var data = MemoryMarshal.Cast<ushort, short>(audio);
for (var j = 0; j < length*buffers.Length; j++)
{
var k = j + length*buffers.Length;
data[j] = (short) ((data[k] + data[j]) / 2);
}
}
for (var i = 0; i < buffers.Length; i++)
{
var buffer = buffers[i];
lock(_playerStateLock)
_synth?.WriteSample16(length, audio, 0, Mono ? 1 : 2,
audio, Mono ? length : 1, Mono ? 1 : 2);
if (Mono) // Turn audio to mono
{
var data = MemoryMarshal.Cast<ushort, short>(audio);
for (var j = 0; j < length; j++)
{
var k = j + length;
data[j] = (short) ((data[k] + data[j]) / 2);
}
}
Source.WriteBuffer(buffer, audio);
Source.WriteBuffer(buffer, audio.Slice(i*length, bufferLength));
}
Source.QueueBuffers(buffers);