[Fontconfig] commit: drastic fontconfig speedups

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On Sun, 2005-11-27 at 20:48 -0500, Patrick Lam wrote:
> Hi all,
> 
> The folks at SuSE have been profiling and contributing a number of
> performance patches for fontconfig, which I've all reviewed and
> committed.  The most recent one is for FcFontSetMatch, which they report
> gives a 3.5x speedup in fontconfig; that patch rewrote the algorithm by
> inlining FcCompare and swapping the order of the loops, blocking fonts
> that were ineligible for being the best font. 

I think most applications should use FcFontSetList instead so that they
receive the set of fonts necessary to render arbitrary characters,
instead of a single font with limited Unicode coverage. I know that
Pango and Mozilla both use the listing function exclusively; I'm not
sure how to improve the performance of this function though.

-keith

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