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Added HQ audio channel.

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Lowered sample rate to 16kHz to normal channels.
Arbitrary audio can only be played on the HQ channel
This commit is contained in:
Alessandro Proto 2023-02-16 21:49:33 +01:00
parent 8703733b91
commit 9cc8377503
2 changed files with 35 additions and 19 deletions
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33
Capy64/Core/Audio.cs
View file

@ -29,12 +29,15 @@ public class Audio : IDisposable
Noise
}
public const int SampleRate = 48000;
public const int SampleRate = 16000;
public const int HQSampleRate = 48000;
public const AudioChannels AudioChannel = AudioChannels.Mono;
public const int ChannelsCount = 5;
public readonly DynamicSoundEffectInstance[] Channels = new DynamicSoundEffectInstance[ChannelsCount];
private bool[] freeChannels = new bool[ChannelsCount];
public readonly DynamicSoundEffectInstance HQChannel = new(HQSampleRate, AudioChannel);
private static readonly Random rng = new();
public Audio()
{
@ -44,6 +47,19 @@ public class Audio : IDisposable
freeChannels[i] = true;
Channels[i].BufferNeeded += Audio_BufferNeeded;
}
HQChannel.BufferNeeded += HQChannel_BufferNeeded;
}
private void HQChannel_BufferNeeded(object sender, EventArgs e)
{
var pending = HQChannel.PendingBufferCount;
Capy64.Instance.LuaRuntime.QueueEvent("audio_need", LK =>
{
LK.PushInteger(-1);
LK.PushInteger(pending);
return 2;
});
}
private void Audio_BufferNeeded(object sender, EventArgs e)
@ -71,6 +87,9 @@ public class Audio : IDisposable
return inp;
if (inp == -1)
return -1;
if (inp == -2)
{
for (int i = 0; i < ChannelsCount; i++)
{
@ -79,8 +98,6 @@ public class Audio : IDisposable
}
}
// -2 is all?
return -3;
}
@ -90,6 +107,8 @@ public class Audio : IDisposable
if (resolvedId >= 0)
channel = Channels[resolvedId];
else if (resolvedId == -1)
channel = HQChannel;
else
channel = null;
@ -106,7 +125,13 @@ public class Audio : IDisposable
return channel.GetSampleDuration(buffer.Length);
}
public byte[] GenerateWave(DynamicSoundEffectInstance channel, Waveform form, double frequency, TimeSpan time, float volume = 1f)
public TimeSpan SubmitHQ(byte[] buffer)
{
HQChannel.SubmitBuffer(buffer);
return HQChannel.GetSampleDuration(buffer.Length);
}
public static byte[] GenerateWave(DynamicSoundEffectInstance channel, Waveform form, double frequency, TimeSpan time, float volume = 1f)
{
var size = channel.GetSampleSizeInBytes(time);
var buffer = new byte[size];

21
Capy64/Runtime/Libraries/Audio.cs
View file

@ -114,16 +114,7 @@ public class Audio : IComponent
}
}
var id = (int)L.OptInteger(2, -1);
if (!_game.Audio.TryGetChannel(id, out var channel, out var rid))
{
L.PushBoolean(false);
L.PushString("Channel not available");
return 2;
}
if (channel.PendingBufferCount > queueLimit)
if (_game.Audio.HQChannel.PendingBufferCount > queueLimit)
{
L.PushBoolean(false);
L.PushString("queue is full");
@ -133,10 +124,10 @@ public class Audio : IComponent
try
{
var ts = _game.Audio.Submit(rid, buffer);
var ts = _game.Audio.SubmitHQ(buffer);
if (channel.State != SoundState.Playing)
channel.Play();
if (_game.Audio.HQChannel.State != SoundState.Playing)
_game.Audio.HQChannel.Play();
}
catch (Exception ex)
{
@ -167,7 +158,7 @@ public class Audio : IComponent
null,
});
var id = (int)L.OptInteger(5, -1);
var id = (int)L.OptInteger(5, -2);
if (!_game.Audio.TryGetChannel(id, out var channel, out var rid))
{
@ -175,7 +166,7 @@ public class Audio : IComponent
return 1;
}
var buffer = _game.Audio.GenerateWave(channel, (Waveform)form, freq, timespan, volume);
var buffer = GenerateWave(channel, (Waveform)form, freq, timespan, volume);
try
{