Re: Scrolling commands and skipping redisplay, was: Re: emacs rendering comparisson between emacs23 and emacs26.3

[Dmitry Gutov]

On 20.04.2020 21:19, Eli Zaretskii wrote:
> Btw, "line" in this context is actually the amount of pixels equal to
> the canonical line height, not a physical line.  When the display
> engine counts "lines" for the purpose of comparison with the value of
> scroll-conservatively, it actually counts pixels and then divides that
> by the canonical line height, it doesn't count screen lines.  So if
> some lines in the buffer are displayed taller than the default face,
> you will see a lot of recentering regardless of what you do.

I wonder if this was a result of some feature request.

Sounds unnecessarily complex, IMHO.