PluginHostType Logic and Multi-Output

Audio Plugins
1

This is an odd one…

Background:

I have multiple constructors depending on the PluginHostType - for this issue we have to consider that our VI in Logic has 16 stereo outputs and the VI in GarageBand is limited to 1 stereo out only.

  1. Start Logic
  2. Load the stereo version of our VI
  • PluginHostType detects that we’re running under AUHostingService and detects that it’s AppleLogic so isLogic() returns true. The plugin opens with the 16 outputs.

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0011966×138 47 KB

002
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  1. In the insert menu switch the VI from stereo to Multi-Output (16xstereo)

The current instance is destroyed and a new instance is created, but this time PluginHostType detects that we’re running under AUHostingService but the host type is AppleGarageBand so our recall crashes.

003
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If in step 2 I instantiate the Multi-Out version (don’t load stereo and then switch) PluginHostType correctly detects it’s running under Logic.

Anyone else seen this?

Rail

2

Okay - this kludge works…

Add this in the HostType enum:

        AppleGarageBand,            /**< Represents Apple GarageBand. */
        MaybeAppleGarageBand,

and add:

    bool isGarageBand() const noexcept        { return type == AppleGarageBand; }
    bool isMaybeGarageBand() const noexcept   { return type == MaybeAppleGarageBand; }

Then

PluginHostType::getHostType()

change the return type for “com.apple.garageband”

if (hostIdReportedByWrapper == "com.apple.garageband")              return MaybeAppleGarageBand;

And when the VI starts up in GarageBand the HostType is AppleGarageBand, when the VI starts up as stereo or Multi-Out in Logic Pro the HostType is AppleLogic and if you then change the plugin configuration in Logic and the VI restarts the HostType is MaybeAppleGarageBand

Rail

3

Maybe it is related to this: Logic 10.7.5 reporting wrong host?!?!

4

I tested with 10.7.4 and QC tested with 10.7.8 – so this seems to be a current bug when switching the plugin from stereo to Multi-Out in Logic.

My fix works so QC have approved the release.

Rail

5

The most recent version of Logic Pro is 11.0.1. Do you know if the issue is still present there?

6

Appears fixed in 11.0.1

Sorry had to deal with Logic not destroying the VI when you close the project… Very frustrating :frowning_with_open_mouth:

Rail