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FLTK broken on Mac #1325

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csounder opened this issue May 17, 2020 · 2 comments
Closed

FLTK broken on Mac #1325

csounder opened this issue May 17, 2020 · 2 comments

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@csounder
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On the Mac, running from CsoundQt or from the Terminal, any instrument that uses the FLTK opcodes puts up a panel that is blank - no sliders, knobs, buttons, text or check boxes appear.
@jpffitch
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Indeed FLTK is suspect on Mac even without csound -- Something to do with threads I think.

@vlazzarini
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vlazzarini commented May 19, 2020 •
edited

FLTK is no good on the Mac and there is no fix. This is a problem with the FLTK library. Basically, FLTK cannot run windows on separate threads on the Mac, they need to be run on the main thread, therefore interrupting audio processing. This is a well-know restriction. Maybe we should note it in the manual.

@tgrey1 tgrey1 mentioned this issue May 26, 2020
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@tgrey1 tgrey1 mentioned this issue Nov 6, 2020
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@anton-k anton-k mentioned this issue Jan 25, 2021
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3 participants
@csounder @jpffitch @vlazzarini