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Re: ftview segfault on ArefRuqaaInk-Regular.ttf (one of google web fonts


From: Alexei Podtelezhnikov
Subject: Re: ftview segfault on ArefRuqaaInk-Regular.ttf (one of google web fonts)
Date: Sun, 14 May 2023 09:27:48 -0400

On Sun, May 14, 2023 at 9:08 AM Werner LEMBERG <wl@gnu.org> wrote:
>
> >> it's an SVG color font, and `ftview` lacks caching support for that
> >> AFAICS.
> >
> > With the most-recent-used logic, caching does not do much for ftview
> > when it outputs every different glyph once.The SVG speed is out of
> > our hands.
>
> Well, it takes a lot of time if I press, say, F8.  For this operation
> a cache would help tremendously.

FTC is designed for a limited memory. By the time you fill the screen,
the top ones are already purged. Then you start from the top again,
which are already forgotten. FTC is designed to keep an alphabet, not
the whole unicode.



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