My MIDI effect AU plugin works on Apple Silicon but not on Intel chipset (macOs)

General JUCE discussion
1

On intel processBlock() doesn’t even get called.

Works great on apple silicon.

Vst3 version works on both chipsets, so does AAX

Not really sure where to even look to solve this…

2

Using JUCE 7.0.5

3

nor is processBlockBypassed() being called in AU on intel macos

4

DoRenderBus never gets called in the AUBASE::DoRender on the x86 side
So something about my bus configuration is acceptable on Silicon but not acceptable on x86
(that’s my theory at least)

5

in Juce my plugin channel configurations are
{1,1},{2,2},{0,0}

6

If I remove those, then AU on intel macOs works.
But then AAX breaks.

7

in juceheader.h

#ifndef  JucePlugin_PreferredChannelConfigurations
 #define JucePlugin_PreferredChannelConfigurations  {1,1},{2,2},{0,0}
#endif

is there a way to make that not get defined if doing AU?
8 
#ifndef JucePlugin_PreferredChannelConfigurations
    #if ! JucePlugin_Build_AU
        #define JucePlugin_PreferredChannelConfigurations  {1,1},{2,2},{0,0}
    #endif
#endif

Surprisingly didn’t work.

Is there something else that JUCER Plugin Channel configurations will implicate?

9 
#ifndef  JucePlugin_MaxNumInputChannels
#if ! JucePlugin_Build_AU

 #define JucePlugin_MaxNumInputChannels    2
#endif

#endif
#ifndef  JucePlugin_MaxNumOutputChannels
#if ! JucePlugin_Build_AU

 #define JucePlugin_MaxNumOutputChannels   2
#endif

#endif
#ifndef JucePlugin_PreferredChannelConfigurations
    #if ! JucePlugin_Build_AU
        #define JucePlugin_PreferredChannelConfigurations  {1,1},{2,2},{0,0}
    #endif
#endif

also doesn’t do it.

10

Keep in mind that the Processor is compiled in the Shared Code target so you shouldn’t rely on #ifs to make it behave differently between AU and AAX. What you can do for these sorts of workarounds is to check the format in run-time.

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