[Development] Any plans on updating harfbuzz?

[Mark]

On Sat, Sep 22, 2012 at 3:03 PM, Mark <markg85 at gmail.com> wrote:
> Hi,
>
> I actually came across this one by accident. I was playing with
> qtperf4 [1] and was profiling the "QTextEdit - add text" since that
> seems a bit slow and equally slow on raster and native. So, after
> profiling it turns out that the vast majority of that benchmark is
> spending it's time in qShapeItem which in turn ends up (after a bunch
> of calls) in HB_GPOS_Apply_String and HB_GSUB_Apply_String. About
> 4/5th of the benchmark time is spend there.
>
> So i was wondering if Qt was using the latest harfbuzz which
> apparently isn't the case. It's not even visible which version Qt
> ships by default, but it is visible that the current harfbuzz
> development is a lot further [2].
>
> Note: the above mentioned profiling was on Qt 4.8.3, not 5.0 beta,
>
> Cheers,
> Mark
>
> [1] http://code.google.com/p/qtperf/
> [2] http://cgit.freedesktop.org/harfbuzz/

For reference, the 0.9.2 release
https://mail.gnome.org/archives/gnome-announce-list/2012-August/msg00024.html
which also notes: "I can finally claim that new HarfBuzz is in par
with or better than both Pango and old.HarfBuzz / Qt."