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Standalone: Add a dummy output channel to MIDI effect plug-ins

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This commit is contained in:
ed 2021-04-09 16:45:28 +01:00
parent 107a2cfe27
commit 04fdc4c209
1 changed files with 26 additions and 15 deletions
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41
modules/juce_audio_plugin_client/Standalone/juce_StandaloneFilterWindow.h
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@ -128,13 +128,7 @@ public:
processor->disableNonMainBuses();
processor->setRateAndBufferSizeDetails (44100, 512);
int inChannels = (channelConfiguration.size() > 0 ? channelConfiguration[0].numIns
: processor->getMainBusNumInputChannels());
int outChannels = (channelConfiguration.size() > 0 ? channelConfiguration[0].numOuts
: processor->getMainBusNumOutputChannels());
processorHasPotentialFeedbackLoop = (inChannels > 0 && outChannels > 0);
processorHasPotentialFeedbackLoop = (getNumInputChannels() > 0 && getNumOutputChannels() > 0);
}
virtual void deletePlugin()
@ -143,6 +137,24 @@ public:
processor = nullptr;
}
int getNumInputChannels() const
{
if (processor == nullptr)
return 0;
return (channelConfiguration.size() > 0 ? channelConfiguration[0].numIns
: processor->getMainBusNumInputChannels());
}
int getNumOutputChannels() const
{
if (processor == nullptr)
return 0;
return (channelConfiguration.size() > 0 ? channelConfiguration[0].numOuts
: processor->getMainBusNumOutputChannels());
}
static String getFilePatterns (const String& fileSuffix)
{
if (fileSuffix.isEmpty())
@ -305,18 +317,17 @@ public:
#endif
}
auto totalInChannels = processor->getMainBusNumInputChannels();
auto totalOutChannels = processor->getMainBusNumOutputChannels();
auto inputChannels = getNumInputChannels();
auto outputChannels = getNumOutputChannels();
if (channelConfiguration.size() > 0)
if (inputChannels == 0 && outputChannels == 0 && processor->isMidiEffect())
{
auto defaultConfig = channelConfiguration.getReference (0);
totalInChannels = defaultConfig.numIns;
totalOutChannels = defaultConfig.numOuts;
// add a dummy output channel for MIDI effect plug-ins so they can receive audio callbacks
outputChannels = 1;
}
deviceManager.initialise (enableAudioInput ? totalInChannels : 0,
totalOutChannels,
deviceManager.initialise (enableAudioInput ? inputChannels : 0,
outputChannels,
savedState.get(),
true,
preferredDefaultDeviceName,