GNU bug report logs - #32932
27.0.50; render bugs on macOS Mojave

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Message #206 received at 32932 <at> debbugs.gnu.org (full text, mbox):

From: Aaron Jensen <aaronjensen <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>, Alan Third <alan <at> idiocy.org>
Cc: boris <at> d12frosted.io, 32932 <at> debbugs.gnu.org
Subject: Re: bug#32932: 27.0.50; render bugs on macOS Mojave
Date: Thu, 8 Nov 2018 08:28:03 -0800

On November 8, 2018 at 8:17:21 AM, Alan Third
(alan <at> idiocy.org(mailto:alan <at> idiocy.org)) wrote:

> If I could suppress the clearing action that would solve the problem.
>
> If expose_frame could draw the rectangle as it was before the
> frame/window was marked garbaged, that would also solve the problem.
>
> I don’t believe the former is possible, and I don’t know if the latter
> is possible.

I’m only partially following this now, so I’m sorry if this idea
doesn’t make sense—but if there’s a spot where the repaint actually
happens, could you dirty the rects right before the repaint. In other
words, queue into a queue the rect dirtying in all the places it
happens and only actually process the dirty queue once you know you
can paint.

Aaron

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