public static void TerminateAudioSampleNode(this DSPGraph graph, DSPNode node)
{
using (var block = graph.CreateCommandBlock())
{
block.TerminateAudioSampleNode(node);
}
}
void Start()
{
var format = ChannelEnumConverter.GetSoundFormatFromSpeakerMode(AudioSettings.speakerMode);
var channels = ChannelEnumConverter.GetChannelCountFromSoundFormat(format);
AudioSettings.GetDSPBufferSize(out var bufferLength, out var numBuffers);
var sampleRate = AudioSettings.outputSampleRate;
m_Graph = DSPGraph.Create(format, channels, bufferLength, sampleRate);
var driver = new DefaultDSPGraphDriver {
Graph = m_Graph
};
driver.AttachToDefaultOutput();
using (var block = m_Graph.CreateCommandBlock())
{
m_NoiseFilter = block.CreateDSPNode <NoiseFilter.Parameters, NoiseFilter.Providers, NoiseFilter>();
block.AddOutletPort(m_NoiseFilter, 2);
m_LowPass = StateVariableFilter.Create(block, StateVariableFilter.FilterType.Lowpass);
block.Connect(m_NoiseFilter, 0, m_LowPass, 0);
block.Connect(m_LowPass, 0, m_Graph.RootDSP, 0);
}
}
void Start()
{
var format = ChannelEnumConverter.GetSoundFormatFromSpeakerMode(AudioSettings.speakerMode);
var channels = ChannelEnumConverter.GetChannelCountFromSoundFormat(format);
AudioSettings.GetDSPBufferSize(out var bufferLength, out var numBuffers);
var sampleRate = AudioSettings.outputSampleRate;
m_Graph = DSPGraph.Create(format, channels, bufferLength, sampleRate);
var driver = new DefaultDSPGraphDriver { Graph = m_Graph };
driver.AttachToDefaultOutput();
using (var block = m_Graph.CreateCommandBlock())
{
m_SineWave = block.CreateDSPNode<SinWaveNode.Parameters, SinWaveNode.Providers, SinWaveNode>();
block.AddOutletPort(m_SineWave, 2, SoundFormat.Stereo);
m_SawWave = block.CreateDSPNode<SawWaveNode.Parameters, SawWaveNode.Providers, SawWaveNode>();
block.AddOutletPort(m_SawWave, 2, SoundFormat.Stereo);
m_MixNode = block.CreateDSPNode<MixNode.Parameters, MixNode.Providers, MixNode>();
block.AddInletPort(m_MixNode, 2, SoundFormat.Stereo);
block.AddInletPort(m_MixNode, 2, SoundFormat.Stereo);
block.AddOutletPort(m_MixNode, 2, SoundFormat.Stereo);
block.Connect(m_SineWave, 0, m_MixNode, 0);
block.Connect(m_SawWave, 0, m_MixNode, 1);
block.Connect(m_MixNode, 0, m_Graph.RootDSP, 0);
}
}
public void ReleasingNode_InvalidatesHandle()
{
DSPNode node = default;
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
node = graphSetup.CreateDSPNode <NoParameters, NoProviders, LifecycleTracking>();
block.AddOutletPort(node, kChannelCount, kSoundFormat);
block.Connect(node, 0, graph.RootDSP, 0);
graphSetup.CleanupNodes = false;
}))
{
// Ensure that node is created
setup.PumpGraph();
Assert.True(node.Valid);
// Release node
using (var block = setup.Graph.CreateCommandBlock())
block.ReleaseDSPNode(node);
setup.PumpGraph();
// Ensure that node handle is no longer valid
Assert.False(node.Valid);
}
}
public unsafe void InterpolatesEmptyRange()
{
DSPNode node = default;
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
node = graphSetup.CreateDSPNode <SingleParameterKernel.Parameters, NoProviders, SingleParameterKernel>();
}))
{
setup.PumpGraph();
long dspClock = 0;
float4 value = 10.0f;
// Get copy of node with populated fields
node = setup.Graph.LookupNode(node.Handle);
var nodeParameters = node.Parameters;
var parameter = nodeParameters[(int)SingleParameterKernel.Parameters.Parameter];
var newKeyIndex = setup.Graph.AppendKey(parameter.KeyIndex, DSPParameterKey.NullIndex, dspClock, value);
for (int sampleOffset = 0; sampleOffset < 10; ++sampleOffset)
{
Assert.AreEqual(value[0], DSPParameterInterpolator.Generate(sampleOffset, setup.Graph.ParameterKeys.UnsafeDataPointer, newKeyIndex, dspClock, float.MinValue, float.MaxValue, value)[0], 0.001f);
}
}
}
public void EventWithIntHandler(DSPNode evNode, EventWithInt ev)
{
Debug.Log("EventWithIntHandler");
Assert.That(evNode, Is.EqualTo(Node));
Assert.That(ev.Value, Is.EqualTo(42));
++EventWithIntCallCount;
}
SpectrumRenderer SpawnSpectrumRenderer(DSPNode spectrumNode)
{
GameObject go = Instantiate(SpectrumRendererPrefab);
SpectrumRenderer spectrum = go.GetComponent <SpectrumRenderer>();
spectrum.Init(_Graph, spectrumNode);
return(spectrum);
}
public void EnumEventHandler(DSPNode evNode, EnumEvent ev)
{
Debug.Log("EnumEventHandler");
Assert.That(evNode, Is.EqualTo(Node));
Assert.That(ev, Is.EqualTo(EnumEvent.EnumEvent1));
++EnumEventCallCount;
Debug.Log("EnumEventHandler call count: " + EnumEventCallCount);
}
ScopeRenderer SpawnScopeRenderer(DSPNode scopeNode)
{
GameObject go = Instantiate(ScopeRendererPrefab);
ScopeRenderer scope = go.GetComponent <ScopeRenderer>();
scope.Init(_Graph, scopeNode);
return(scope);
}
public void EventWithManyFieldsHandler(DSPNode evNode, EventWithManyFields ev)
{
Debug.Log("EventWithManyFieldsHandler");
Assert.That(evNode, Is.EqualTo(Node));
Assert.That(ev.IntValue, Is.EqualTo(42));
Assert.That(ev.BoolValue, Is.EqualTo(true));
Assert.That(ev.FloatValue, Is.EqualTo(3.1416F));
Assert.That(ev.CharValue, Is.EqualTo('x'));
++EventWithManyFieldsCallCount;
}
public DSPNode CreateDSPNode <TParameters, TProviders, TAudioKernel>()
where TParameters : unmanaged, Enum
where TProviders : unmanaged, Enum
where TAudioKernel : struct, IAudioKernel <TParameters, TProviders>
{
DSPNode node = Block.CreateDSPNode <TParameters, TProviders, TAudioKernel>();
m_CreatedNodes.Add(node);
return(node);
}
public static void TriggerAudioSample(
this DSPCommandBlock block,
DSPNode node,
AudioSampleDataReader reader,
Categories category = Categories.OneShot)
{
// Kick off playback. This will be done in a better way in the future.
block.UpdateAudioKernel <StartPlayingAudioSample, Parameters, Providers, PlayAudioSampleReaderNode>(
new StartPlayingAudioSample(reader, category),
node
);
}
public void AllocatingKernel_Works()
{
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
DSPNode node = graphSetup.CreateDSPNode <NoParameters, NoProviders, AllocatingKernel>();
block.AddOutletPort(node, kChannelCount, kSoundFormat);
block.Connect(node, 0, graph.RootDSP, 0);
}))
{
setup.PumpGraph();
}
}
public void LeakyKernel_EmitsWarning()
{
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
DSPNode node = graphSetup.CreateDSPNode <NoParameters, NoProviders, LeakyKernel>();
block.AddOutletPort(node, kChannelCount, kSoundFormat);
block.Connect(node, 0, graph.RootDSP, 0);
}))
{
setup.PumpGraph();
LogAssert.Expect(LogType.Warning, "1 leaked DSP node allocations");
}
}
public void Init(DSPGraph graph, DSPNode scopeNode)
{
_Graph = graph;
_ScopeNode = scopeNode;
_Initialized = true;
var sm = FindObjectOfType <ScopeManager>();
if (sm != null)
{
sm.Register(this);
}
}
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 void DSPNode_WithNoInputsOrOutputs_IsNotExecuted(DSPGraph.ExecutionMode executionMode)
{
DSPNode node = default;
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
node = graphSetup.CreateDSPNode <NoParameters, NoProviders, LifecycleTracking>();
}))
{
setup.PumpGraph();
Assert.AreEqual(0, LifecycleTracking.Executed);
}
}
public void LeakyGraph_DoesntCrash()
{
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
DSPNode node = graphSetup.CreateDSPNode <NoParameters, NoProviders, LifecycleTracking>();
block.AddOutletPort(node, kChannelCount, kSoundFormat);
block.Connect(node, 0, graph.RootDSP, 0);
}))
{
setup.CleanupNodes = false;
LogAssert.Expect(LogType.Warning, kNodeLeakMessage);
setup.PumpGraph();
}
}
static int CountOutputConnections(DSPGraph graph, DSPNode node)
{
var connections = graph.Connections;
int count = 0;
var outputConnectionIndex = node.OutputConnectionIndex;
while (outputConnectionIndex != DSPConnection.InvalidIndex)
{
++count;
outputConnectionIndex = connections[outputConnectionIndex].NextOutputConnectionIndex;
}
return(count);
}
public void StateChange_InvokesLifecycleCallbacks()
{
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
DSPNode node = graphSetup.CreateDSPNode <NoParameters, NoProviders, LifecycleTracking>();
block.AddOutletPort(node, kChannelCount, kSoundFormat);
block.Connect(node, 0, graph.RootDSP, 0);
}))
{
setup.PumpGraph();
Assert.Greater(LifecycleTracking.Initialized, 0);
Assert.Greater(LifecycleTracking.Executed, 0);
Assert.AreEqual(LifecycleTracking.LifecyclePhase.Executing, LifecycleTracking.Phase);
}
Assert.AreEqual(LifecycleTracking.LifecyclePhase.Disposed, LifecycleTracking.Phase);
}
public void AllocatingKernelMemory_DuringUpdateJob_Works()
{
var node = new DSPNode();
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
node = graphSetup.CreateDSPNode <NoParameters, NoProviders, LifecycleTracking>();
block.AddOutletPort(node, kChannelCount, kSoundFormat);
block.Connect(node, 0, graph.RootDSP, 0);
}))
{
using (var block = setup.Graph.CreateCommandBlock())
block.CreateUpdateRequest <AllocatingUpdateJob, NoParameters, NoProviders, LifecycleTracking>(new AllocatingUpdateJob(), node, null);
setup.PumpGraph();
}
}
public void ReleasingDSPNode_InChain_KillsSignal(DSPGraph.ExecutionMode executionMode)
{
DSPNode generator = default;
DSPNode passthrough = default;
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
generator = block.CreateDSPNode <NoParameters, NoProviders, GenerateOne>();
block.AddOutletPort(generator, GraphSetup.ChannelCount, GraphSetup.SoundFormat);
passthrough = block.CreateDSPNode <NoParameters, NoProviders, PassThrough>();
block.AddInletPort(passthrough, GraphSetup.ChannelCount, GraphSetup.SoundFormat);
block.AddOutletPort(passthrough, GraphSetup.ChannelCount, GraphSetup.SoundFormat);
block.Connect(generator, 0, passthrough, 0);
block.Connect(passthrough, 0, graph.RootDSP, 0);
}))
{
using (var buffer = new NativeArray <float>(setup.Graph.DSPBufferSize * GraphSetup.ChannelCount, Allocator.Temp))
{
setup.Graph.BeginMix(setup.Graph.DSPBufferSize);
setup.Graph.ReadMix(buffer, setup.Graph.DSPBufferSize, GraphSetup.ChannelCount);
foreach (var sample in buffer)
{
Assert.AreEqual(1.0f, sample, 0.001f);
}
using (var block = setup.Graph.CreateCommandBlock())
block.ReleaseDSPNode(passthrough);
setup.Graph.BeginMix(setup.Graph.DSPBufferSize);
setup.Graph.ReadMix(buffer, setup.Graph.DSPBufferSize, GraphSetup.ChannelCount);
foreach (var sample in buffer)
{
Assert.AreEqual(0.0f, sample, 0.001f);
}
using (var block = setup.Graph.CreateCommandBlock())
block.ReleaseDSPNode(generator);
}
}
}
public void MixOverwritesData(DSPGraph.ExecutionMode executionMode)
{
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
DSPNode node = graphSetup.CreateDSPNode <NoParameters, NoProviders, GenerateOne>();
block.AddOutletPort(node, GraphSetup.ChannelCount, GraphSetup.SoundFormat);
block.Connect(node, 0, graph.RootDSP, 0);
}))
{
using (var buffer = new NativeArray <float>(setup.Graph.DSPBufferSize * GraphSetup.ChannelCount, Allocator.Temp, NativeArrayOptions.ClearMemory))
{
setup.Graph.BeginMix(setup.Graph.DSPBufferSize, executionMode);
setup.Graph.ReadMix(buffer, setup.Graph.DSPBufferSize, GraphSetup.ChannelCount);
foreach (var sample in buffer)
{
Assert.AreEqual(1.0f, sample, 0.001f);
}
}
}
}
private void ReleaseNode(DSPNode node, AudioSampleNodeCompleted @event)
{
if (@event.category != Categories.OneShot ||
!this._available.IsCreated)
{
return;
}
using (var block = this._graph.CreateCommandBlock())
{
block.Disconnect(
node,
0,
this._graph.RootDSP,
0
);
}
this._available.Enqueue(node);
}
void Start()
{
var format = ChannelEnumConverter.GetSoundFormatFromSpeakerMode(AudioSettings.speakerMode);
var channels = ChannelEnumConverter.GetChannelCountFromSoundFormat(format);
AudioSettings.GetDSPBufferSize(out var bufferLength, out var numBuffers);
var sampleRate = AudioSettings.outputSampleRate;
m_Graph = DSPGraph.Create(format, channels, bufferLength, sampleRate);
var driver = new DefaultDSPGraphDriver {
Graph = m_Graph
};
m_Output = driver.AttachToDefaultOutput();
// Add an event handler delegate to the graph for ClipStopped. So we are notified
// of when a clip is stopped in the node and can handle the resources on the main thread.
m_HandlerID = m_Graph.AddNodeEventHandler <ClipStopped>((node, evt) =>
{
Debug.Log("Received ClipStopped event on main thread, cleaning resources");
});
// All async interaction with the graph must be done through a DSPCommandBlock.
// Create it here and complete it once all commands are added.
var block = m_Graph.CreateCommandBlock();
m_Node = block.CreateDSPNode <PlayClipNode.Parameters, PlayClipNode.SampleProviders, PlayClipNode>();
// Currently input and output ports are dynamic and added via this API to a node.
// This will change to a static definition of nodes in the future.
block.AddOutletPort(m_Node, 2, SoundFormat.Stereo);
// Connect the node to the root of the graph.
m_Connection = block.Connect(m_Node, 0, m_Graph.RootDSP, 0);
// We are done, fire off the command block atomically to the mixer thread.
block.Complete();
}
public void WritingToInputBuffer_Throws(DSPGraph.ExecutionMode executionMode)
{
using (var setup = new GraphSetup((graphSetup, graph, block) =>
{
DSPNode generator = graphSetup.CreateDSPNode <NoParameters, NoProviders, GenerateOne>();
block.AddOutletPort(generator, kChannelCount, kSoundFormat);
DSPNode node = graphSetup.CreateDSPNode <NoParameters, NoProviders, WritingToInputBufferKernel>();
block.AddInletPort(node, kChannelCount, kSoundFormat);
block.AddOutletPort(node, kChannelCount, kSoundFormat);
block.Connect(generator, 0, node, 0);
block.Connect(node, 0, graph.RootDSP, 0);
}))
{
using (var buff = new NativeArray <float>(200, Allocator.TempJob))
{
setup.Graph.BeginMix(0, executionMode);
setup.Graph.ReadMix(buff, 200 / kChannelCount, kChannelCount);
}
}
}
void AddProviderToNode <TKernel>(DSPCommandBlock block, DSPNode node, int index = -1, float value = kSignalValueA, Providers item = Providers.VariableSizeArray, bool insert = true)
where TKernel : struct, IAudioKernel <NoParameters, Providers>
{
var provider = AudioSampleProvider.Create(kChannelCount, kSampleRate);
provider.enableSilencePadding = false;
var inputBuff = new NativeArray <float>(2 * kChannelCount * kDspBufferSize, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
for (int i = 0; i < inputBuff.Length; ++i)
{
inputBuff[i] = value;
}
provider.QueueSampleFrames(inputBuff);
inputBuff.Dispose();
if (insert)
{
block.InsertSampleProvider <NoParameters, Providers, TKernel>(provider.id, node, item, index);
}
else
{
block.SetSampleProvider <NoParameters, Providers, TKernel>(provider.id, node, item, index);
}
}
void ConfigureDSP()
{
AudioConfiguration audioConfig = AudioSettings.GetConfiguration();
Debug.LogFormat("BufferSize={0} SampleRate={1}", audioConfig.dspBufferSize, audioConfig.sampleRate);
_MicrophoneClip = Microphone.Start(Microphone.devices[0], true, 1, audioConfig.sampleRate);
Debug.LogFormat("Microphone Channels={0} Frequency={1} Samples={2} Ambisonic={3}", _MicrophoneClip.channels, _MicrophoneClip.frequency, _MicrophoneClip.samples, _MicrophoneClip.ambisonic);
_MicrophoneBuffer = new NativeArray <float>(_MicrophoneClip.samples, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
_MicrophoneDataArray = new float[_MicrophoneClip.samples];
_Graph = DSPGraph.Create(SoundFormat.Stereo, 2, audioConfig.dspBufferSize, audioConfig.sampleRate);
_Driver = new MyAudioDriver {
Graph = _Graph
};
_OutputHandle = _Driver.AttachToDefaultOutput();
// create graph structure
using (var block = _Graph.CreateCommandBlock())
{
//
// create nodes
//
_Microphone = block.CreateDSPNode <MicrophoneNode.Parameters, MicrophoneNode.Providers, MicrophoneNode>();
block.AddOutletPort(_Microphone, 1, SoundFormat.Mono);
_Scope = block.CreateDSPNode <ScopeNode.Parameters, ScopeNode.Providers, ScopeNode>();
block.AddInletPort(_Scope, 1, SoundFormat.Mono);
_Spectrum = block.CreateDSPNode <SpectrumNode.Parameters, SpectrumNode.Providers, SpectrumNode>();
block.AddInletPort(_Spectrum, 1, SoundFormat.Mono);
_MonoToStereo = block.CreateDSPNode <MonoToStereoNode.Parameters, MonoToStereoNode.Providers, MonoToStereoNode>();
block.AddInletPort(_MonoToStereo, 1, SoundFormat.Mono); // left
block.AddInletPort(_MonoToStereo, 1, SoundFormat.Mono); // right
block.AddOutletPort(_MonoToStereo, 2, SoundFormat.Stereo);
//
// connect nodes
//
block.Connect(_Microphone, 0, _MonoToStereo, 0);
block.Connect(_Microphone, 0, _MonoToStereo, 1);
block.Connect(_MonoToStereo, 0, _Graph.RootDSP, 0);
block.Connect(_Microphone, 0, _Scope, 0);
block.Connect(_Microphone, 0, _Spectrum, 0);
//
// set parameters
//
block.SetFloat <ScopeNode.Parameters, ScopeNode.Providers, ScopeNode>(_Scope, ScopeNode.Parameters.Time, 1f);
block.SetFloat <ScopeNode.Parameters, ScopeNode.Providers, ScopeNode>(_Scope, ScopeNode.Parameters.TriggerTreshold, 0f);
block.SetFloat <SpectrumNode.Parameters, SpectrumNode.Providers, SpectrumNode>(_Spectrum, SpectrumNode.Parameters.Window, (float)SpectrumNode.WindowType.Hamming);
}
_ScopeRenderer = SpawnScopeRenderer(_Scope);
_ScopeRenderer.Height = 5.0f;
_ScopeRenderer.Offset = 0.0f;
_SpectrumRenderer = SpawnSpectrumRenderer(_Spectrum);
StartCoroutine(InitMicCoroutine());
}
public NodeData CreateGeneratorNode(DSPNode consumer, int channelCount = DefaultChannelCount, SoundFormat soundFormat = DefaultSoundFormat)
{
using (var block = Graph.CreateCommandBlock())
return(CreateGeneratorNode(block, consumer, channelCount, soundFormat));
}
public static void TerminateAudioSampleNode(this DSPCommandBlock block, DSPNode node)
{
block.UpdateAudioKernel <TerminateAudioSampleNode, Parameters, Providers, PlayAudioSampleReaderNode>(
new TerminateAudioSampleNode(),
node);
}
