[cairo] [patch] caching, glyph, font, and glyphset patch, round 2

[Keith Packard]

Around 11 o'clock on Oct 12, graydon hoare wrote:

> no, but it's plausible. there are a couple ways to do it: either free 
> and null out the image field inside a image+metrics cache entry when you 
> upload it (and make the lookup function for the image+metrics cache 
> rebuild it on demand),

This is what Xft does.  Note that Xft also has a mode which computes only 
metrics and not bitmaps which it uses when doing extents computations on 
really big characters.  That can save a lot of computation and X server 
thrashing for certain classes of applications.

-keith


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