[cairo] Report for the pango patch and proper profiles

Daniel Amelang daniel.amelang at gmail.com
Mon Dec 4 17:03:24 PST 2006


On 12/4/06, Behdad Esfahbod <behdad at behdad.org> wrote:
> On Fri, 2006-12-01 at 03:59 -0500, Behdad Esfahbod wrote:
>
> This is mostly done and in pango-1.15.0 now.  Yes, down to zero
> pango_font_get_glyph_extents() calls per expose!

This is excellent! I've been meaning to look into speeding up
get_glyph_extents, as it is a bottleneck on the 770, but now that
you've dramatically reduced the number of times it is called, I won't
need to. Nice job.

> In my testings, this didn't affect the timetext test much

Well, according to these profiles:

http://folks.o-hand.com/jorn/pango-benchmarks/210-softfloat/pango.txt
http://folks.o-hand.com/jorn/pango-benchmarks/210-softfloat/pango-cairo.txt

your improvement should make a large difference on the 770. I'll try
to get you numbers, if Xan doesn't beat me to it.

> --
> behdad

Dan


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