GNU bug report logs - #77039
31.0.50; Flickering on macOS

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From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: Aaron Jensen <aaronjensen <at> gmail.com>
Cc: Alan Third <alan <at> idiocy.org>, 77039 <at> debbugs.gnu.org
Subject: bug#77039: 31.0.50; Flickering on macOS
Date: Sun, 16 Mar 2025 20:35:50 +0100

Aaron Jensen <aaronjensen <at> gmail.com> writes:

>  Actually, while I don't fully understand the code, it seems suspect
>  to me that there is a global `space_glyph` glyph struct that gets
>  initialized with a NULL frame but the frame is mutated over time. I
>  wonder if my not removing the frame check inside of
>  CHAR_GLYPH_SPACE_P is why I saw the cursor flicker once.
>
> I was mistaken here, I believe. It's not mutated over time — I'm just
> rusty on C and I misread some code.

And the redisplay code is pretty complicated, I must admit. Much of
which is due to the slowness of mid-90s computers and pressing something
with acceptable performance out of that 🤷.

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