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Fixed a parameter change recursion bug in the AUv3 Wrapper

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This commit is contained in:
Tom Poole 2018-03-09 13:24:59 +00:00
parent b5e1c3d4c4
commit 88e76ff712
1 changed files with 17 additions and 2 deletions
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19
modules/juce_audio_plugin_client/AU/juce_AUv3_Wrapper.mm
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@ -455,6 +455,8 @@ public:
//==============================================================================
void init()
{
inParameterChangedCallback = false;
AudioProcessor& processor = getAudioProcessor();
const AUAudioFrameCount maxFrames = [getAudioUnit() maximumFramesToRender];
@ -901,6 +903,12 @@ public:
void audioProcessorParameterChanged (AudioProcessor*, int idx, float newValue) override
{
if (inParameterChangedCallback.get())
{
inParameterChangedCallback = false;
return;
}
if (isPositiveAndBelow (idx, getAudioProcessor().getNumParameters()))
{
if (AUParameter* param = [paramTree parameterWithAddress: getAUParameterAddressForIndex (idx)])
@ -1255,8 +1263,13 @@ private:
{
if (auto* param = getAudioProcessor().getParameters()[index])
{
param->setValue (value);
param->sendValueChangedMessageToListeners (value);
if (value != param->getValue())
{
param->setValue (value);
inParameterChangedCallback = true;
param->sendValueChangedMessageToListeners (value);
}
}
else if (isPositiveAndBelow (index, getAudioProcessor().getNumParameters()))
{
@ -1603,6 +1616,8 @@ private:
CurrentPositionInfo lastAudioHead;
String contextName;
ThreadLocalValue<bool> inParameterChangedCallback;
};
const double JuceAudioUnitv3::kDefaultSampleRate = 44100.0;