private AudioClipPlayerSystemState CreateState(DSPCommandBlock block)
{
DSPNode node;
if (this._available.Count > 0)
{
node = this._available.Dequeue();
}
else
{
Debug.Log($"Creating additional OneShot PlayAudioSampleNode #{this._all.Length}");
node = block.CreateDSPNode <Parameters, Providers, PlayAudioSampleReaderNode>();
block.AddOutletPort(node, 2);
this._all.Add(node);
}
var connection = block.Connect(
node,
0,
this._graph.RootDSP,
0
);
return(new AudioClipPlayerSystemState(node, connection));
}
public static NodeData CreateGeneratorNode(DSPCommandBlock block, DSPNode consumer, int channelCount, SoundFormat soundFormat)
{
var node = block.CreateDSPNode <NoParameters, NoProviders, GenerateOne>();
block.AddOutletPort(node, channelCount, soundFormat);
var connection = block.Connect(node, 0, consumer, 0);
return(new NodeData
{
Node = node,
Connection = connection
});
}
public static NodeData CreatePassthroughNode(DSPCommandBlock block, DSPGraph graph, int channelCount, SoundFormat soundFormat)
{
var node = block.CreateDSPNode <NoParameters, NoProviders, PassThrough>();
block.AddInletPort(node, channelCount, soundFormat);
block.AddOutletPort(node, channelCount, soundFormat);
var connection = block.Connect(node, 0, graph.RootDSP, 0);
return(new NodeData
{
Node = node,
Connection = connection
});
}
private AudioClipPlayerSystemState CreateNode(DSPCommandBlock block)
{
var node = block.CreateDSPNode <Parameters, Providers, PlayAudioSampleReaderNode>();
block.AddOutletPort(node, 2);
var connection = block.Connect(
node,
0,
this._graph.RootDSP,
0
);
return(new AudioClipPlayerSystemState(node, connection));
}
// Script load constructor
private void Awake()
{
AudioConfiguration audioConfig = AudioSettings.GetConfiguration();
m_sampleRate = audioConfig.sampleRate;
m_bufferSize = audioConfig.dspBufferSize;
switch (audioConfig.speakerMode)
{
case AudioSpeakerMode.Mono:
{
m_channels = 1;
break;
}
case AudioSpeakerMode.Stereo:
{
m_channels = 2;
break;
}
default:
{
m_channels = 2;
break;
}
}
// Create output
m_driver = new DSPGraphDriver();
m_driver.Initialize(m_channels, SoundFormat.Stereo, m_sampleRate, m_bufferSize);
int bufferAllocationSize = (m_channels * m_bufferSize);
m_buffer = new NativeArray <float>(bufferAllocationSize, Allocator.Persistent, NativeArrayOptions.ClearMemory);
// Connect internal node to the output
DSPCommandBlock commandBlock = m_driver.m_graph.CreateCommandBlock();
m_oscNode = commandBlock.CreateDSPNode <OscParameters, OscProviders, OscillatorNode>();
commandBlock.AddOutletPort(m_oscNode, 1, SoundFormat.Mono);
commandBlock.SetFloat <OscParameters, OscProviders, OscillatorNode>(m_oscNode, OscParameters.Wave, (float)OscWave.Sine);
commandBlock.SetFloat <OscParameters, OscProviders, OscillatorNode>(m_oscNode, OscParameters.Frequency, 440.0f);
// SVF (2nd order low pass) node
m_filterNode = commandBlock.CreateDSPNode <SVFParameters, SVFProviders, SVFNode>();
commandBlock.AddInletPort(m_filterNode, 1, SoundFormat.Mono);
commandBlock.AddOutletPort(m_filterNode, 1, SoundFormat.Mono);
commandBlock.SetFloat <SVFParameters, SVFProviders, SVFNode>(m_filterNode, SVFParameters.Cutoff, 100.0f);
commandBlock.SetFloat <SVFParameters, SVFProviders, SVFNode>(m_filterNode, SVFParameters.Q, 0.707f);
commandBlock.SetFloat <SVFParameters, SVFProviders, SVFNode>(m_filterNode, SVFParameters.Amplitude, 0.8f);
// VCA (amplitude control) node
m_vcaNode = commandBlock.CreateDSPNode <VCAParameters, VCAProviders, VCANode>();
commandBlock.AddInletPort(m_vcaNode, 1, SoundFormat.Mono);
commandBlock.AddOutletPort(m_vcaNode, 1, SoundFormat.Mono);
commandBlock.SetFloat <VCAParameters, VCAProviders, VCANode>(m_vcaNode, VCAParameters.Amplitude, 0.0f);
// Mono to stereo node setup
m_stereoNode = commandBlock.CreateDSPNode <MonoToStereoParameters, MonoToStereoProviders, MonoToStereoNode>();
commandBlock.AddInletPort(m_stereoNode, 1, SoundFormat.Mono);
commandBlock.AddOutletPort(m_stereoNode, m_channels, SoundFormat.Stereo);
commandBlock.SetFloat <MonoToStereoParameters, MonoToStereoProviders, MonoToStereoNode>(m_stereoNode, MonoToStereoParameters.Pan, 0.0f);
// Connect the nodes together
// VCO -> SVF -> VCA -> Pan -> Output
commandBlock.Connect(m_oscNode, 0, m_filterNode, 0);
commandBlock.Connect(m_filterNode, 0, m_vcaNode, 0);
commandBlock.Connect(m_vcaNode, 0, m_stereoNode, 0);
commandBlock.Connect(m_stereoNode, 0, m_driver.m_graph.RootDSP, 0);
// Send the command the atomic/asynchronous handler
commandBlock.Complete();
}
