[FR] createPluginFilter (bool)

General JUCE discussion
1

Okay - I’m not sure if y’all would go for this… :slight_smile:

Since my Standalone has to have a different set of Bus properties than my non-standalone version…

In juce_PluginUtilities.cpp

//==============================================================================
/** Somewhere in the codebase of your plugin, you need to implement this function
    and make it return a new instance of the filter subclass that you're building.
*/
 extern AudioProcessor* JUCE_CALLTYPE createPluginFilter (bool);

:

 AudioProcessor* JUCE_API JUCE_CALLTYPE createPluginFilterOfType (AudioProcessor::WrapperType type)
{
    AudioProcessor::setTypeOfNextNewPlugin (type);
    AudioProcessor* const pluginInstance = createPluginFilter (type == AudioProcessor::WrapperType::wrapperType_Standalone);
    AudioProcessor::setTypeOfNextNewPlugin (AudioProcessor::wrapperType_Undefined);

    // your createPluginFilter() method must return an object!
    jassert (pluginInstance != nullptr && pluginInstance->wrapperType == type);

    return pluginInstance;
}

Then in my processor class have two constructors:

  MyAudioProcessor();
  MyAudioProcessor (bool bStandalone);

and change:

 //==============================================================================
 // This creates new instances of the plugin..
  AudioProcessor* JUCE_CALLTYPE createPluginFilter (bool bStandalone = false)
 {
     if (bStandalone)
         return new CPlayerAudioProcessor (bStandalone);

     return new CPlayerAudioProcessor();
 }

I can now have a separate ctor for Standalone and non-Standalone…

MyAudioProcessor:: MyAudioProcessor (bool bStandalone) : AudioProcessor (BusesProperties().withOutput ("Out", AudioChannelSet::discreteChannels (16), true) )
{
}

MyAudioProcessor:: MyAudioProcessor() : AudioProcessor (BusesProperties()                                                                 
                                                             .withOutput ("Out 1-2",   AudioChannelSet::stereo(), true)
                                                             .withOutput ("Out 3-4",   AudioChannelSet::stereo(), false)
                                                             .withOutput ("Out 5-6",   AudioChannelSet::stereo(), false)
                                                             .withOutput ("Out 7-8",   AudioChannelSet::stereo(), false)
                                                             .withOutput ("Out 9-10",  AudioChannelSet::stereo(), false)
                                                             .withOutput ("Out 11-12", AudioChannelSet::stereo(), false)
                                                             .withOutput ("Out 13-14", AudioChannelSet::stereo(), false)
                                                             .withOutput ("Out 15-16", AudioChannelSet::stereo(), false)
                                                             )
{
}

Cheers,

Rail

1 Like
2

Uhm, can’t you have two different constructors for your MyAudioProcessor and just call the appropriate one inside createPluginFilter() depending on what’s returned by JUCEApplicationBase::isStandaloneApp() ?

2 Likes
3

Damn… I guess I was overthinking it :slight_smile:

 AudioProcessor* JUCE_CALLTYPE createPluginFilter()
 {
     if (JUCEApplicationBase::isStandaloneApp())
         return new CPlayerAudioProcessor (true);

     return new CPlayerAudioProcessor();
 }

Works fine!

Thanks,

Rail

3 Likes