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

From: Eli Zaretskii <[email-masked]>
Date: Mon, 05 Mar 2018 21:53:37 +0200

> Date: Mon, 5 Mar 2018 19:23:31 +0000
> From: Alan Third <[email-masked]>
> Cc: Aaron Jensen <[email-masked]>, [email-masked]
> 
> > We already have double-buffering on X, perhaps it can be implemented
> > on macOS as well.
> 
> We could do something similar using NSDisableScreenUpdates and
> NSEnableScreenUpdates:
> 
> https://developer.apple.com/documentation/appkit/1473676-nsdisablescreenupdates?language=objc
> 
> We should be able to wrap it round redisplay. Where would that be
> done?

I don't think I understand the meaning of "wrap it round redisplay" to
answer that.  Is the feature you mention significantly different from
what we use for double-buffering on X?  If not, you can use the same
model.