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bug#30699: 26.0.91; buffer contents flicker on macOS frames when frames


From: Eli Zaretskii
Subject: bug#30699: 26.0.91; buffer contents flicker on macOS frames when frames are resized
Date: Mon, 05 Mar 2018 20:00:07 +0200

> From: Aaron Jensen <address@hidden>
> Date: Mon, 5 Mar 2018 08:21:45 -0800
> Cc: Alan Third <address@hidden>, address@hidden
> 
> > AFAIK, no.  Redrawing a garbaged frame involves clearing it and
> > completely redrawing all of its windows, and that is what you perceive
> > as flicker.
> 
> Thanks, I was thinking about double buffering--painting both the clear
> and the next paint on the same buffer before swapping it in, but I'm
> sure that's much more simplistic than what is actually happening.

We already have double-buffering on X, perhaps it can be implemented
on macOS as well.





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