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Re: Question about display engine

From: martin rudalics
Subject: Re: Question about display engine
Date: Tue, 3 Sep 2019 20:59:33 +0200

> I don't think it's expensive enough to justify such premature
> optimization.

Earlier you preferred a lazy variant because

> it scales better, because the
> display code is frequently invoked on short portions of the text, so
> there's no guarantee that it will actually get to producing glyphs
> with the "extension" variant of the face, so realizing that face in
> advance might well be waste of unneeded effort, because the additional
> face will never be used.

Either way, let's see what Ergus comes up with.


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