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AudioProcessorGraph: start outputting audio only after the graph is prepared.

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This commit is contained in:
Lukasz Kozakiewicz 2018-03-08 13:27:57 +01:00
parent 3fcbead84c
commit b5e1c3d4c4
1 changed files with 39 additions and 6 deletions
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45
modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp
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@ -1256,20 +1256,53 @@ bool AudioProcessorGraph::producesMidi() const { return tru
void AudioProcessorGraph::getStateInformation (juce::MemoryBlock&) {}
void AudioProcessorGraph::setStateInformation (const void*, int) {}
template <typename Type>
static void processBlockForBuffer (AudioBuffer<Type>& buffer, MidiBuffer& midiMessages,
AudioProcessorGraph& graph,
GraphRenderSequence<Type>* renderSequence,
Atomic<int>& isPrepared)
{
if (graph.isNonRealtime())
{
while (isPrepared.get() == 0)
Thread::sleep (1);
const ScopedLock sl (graph.getCallbackLock());
if (renderSequence != nullptr)
renderSequence->perform (buffer, midiMessages, graph.getPlayHead());
}
else
{
const ScopedLock sl (graph.getCallbackLock());
if (isPrepared.get() == 1)
{
if (renderSequence != nullptr)
renderSequence->perform (buffer, midiMessages, graph.getPlayHead());
}
else
{
buffer.clear();
midiMessages.clear();
}
}
}
void AudioProcessorGraph::processBlock (AudioBuffer<float>& buffer, MidiBuffer& midiMessages)
{
const ScopedLock sl (getCallbackLock());
if (isPrepared.get() == 0 && MessageManager::getInstance()->isThisTheMessageThread())
handleAsyncUpdate();
if (renderSequenceFloat != nullptr)
renderSequenceFloat->perform (buffer, midiMessages, getPlayHead());
processBlockForBuffer<float> (buffer, midiMessages, *this, renderSequenceFloat, isPrepared);
}
void AudioProcessorGraph::processBlock (AudioBuffer<double>& buffer, MidiBuffer& midiMessages)
{
const ScopedLock sl (getCallbackLock());
if (isPrepared.get() == 0 && MessageManager::getInstance()->isThisTheMessageThread())
handleAsyncUpdate();
if (renderSequenceDouble != nullptr)
renderSequenceDouble->perform (buffer, midiMessages, getPlayHead());
processBlockForBuffer<double> (buffer, midiMessages, *this, renderSequenceDouble, isPrepared);
}
//==============================================================================