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jpcima / ADLplug

FM Chip Synthesizer — OPL & OPN — VST/LV2/Standalone
Boost Software License 1.0
426 stars 22 forks source link

update JUCE LV2 branch to the latest JUCE6 and enable VST3 build on Linux #68

Closed atsushieno closed 2 years ago

atsushieno commented 3 years ago

It ist most unlikely ideal (because it is currently killing VeSTige based VST2 build), but based on https://github.com/jpcima/JUCE/pull/5, this brings in VST3 support. Those massive changes are mostly for vst3sdk updates.

jpcima commented 3 years ago

Hi, does VST3 support handling distinct MIDI channels? This plugin was always designed as multi-channel instrument, like Roland Sound Canvas. At first I thought that VST3 takes control over MIDI channels in the host, and hence it's not possible to preserve the current model in this format. Is this actually not the case?

atsushieno commented 3 years ago

That is an interesting concern, I hadn't thought of that. Is it something like this? https://forum.juce.com/t/what-is-the-intention-of-macro-juce-vst3-emulate-midi-cc-with-parameters/17858/13

I tried this with Carla and my own virtual MIDI keyboard app to confirm that the ALSA MIDI inputs on different channels are successfully sent to OPNplug. I recorded the behaviors using OBS studio.

While notes are successfully sent (2020-10-10 00-11-50.zip), program changes aren't (2020-10-10 00-26-49.zip). So your concern is correct, it's not fully compatible.

atsushieno commented 2 years ago

Just noticed that there is an update to JUCE6 in the main branch. There is no need for this PR then.