[cairo] Cairo 1.4.10 and maemo

Michael Dominic K. mdk at mdk.am
Wed Aug 22 08:06:38 PDT 2007


On 8/17/07, Behdad Esfahbod <behdad at behdad.org> wrote:
> On Fri, 2007-08-17 at 08:52 -0400, Carl Worth wrote:
> > On Fri, 17 Aug 2007 15:08:13 +0300, "Michael Dominic K." wrote:
> > >
> > > I was thinking about pushing 1.4.10 forward, but Xan hinted that in
> > > this version there might be still some problems with text rendering
> > > coming from different threads. Are those concerns still valid with
> > > 1.4.10?
> >
> > I'm not aware of any multi-thread bugs related to text rendering. The
> > text performance improvement you're seeing in 1.4.10 compared to 1.4.6
> > is primarily due to the solid-surface cache that was introduced in the
> > 1.3.8 release.
>
> You mean 1.4.8.
>
> Another source of text rendering speedup in 1.4.x series is of-course
> better/correct use of Xrender text API that leads to much less traffic.
>
> > Preliminary versions of that cache, (during 1.3.x development), did
> > cause problems with multi-thread text rendering, but we didn't put the
> > cache into any released version of cairo until all known problems were
> > fixed.
>
> In fact 1.4.8 was shipped with a slightly broken patch too.  But 1.4.10
> should be all good.
>
> We are planning to do another stable release in a couple or more weeks,
> stay tuned.

I pushed 1.4.10 forward to Chinook, I couldn't spot any problems in
our use case. It's also available through Sardine now. I'll update to
next version once it's out and if timing permits.

> > > I did basic testing and couldn't notice any obvious problems.
> > > What do you recommend?
> >
> > I would recommend 1.4.10, (and of course, please let us know if you do
> > run into any problems).
> >
> > Have fun with cairo!
> >
> > -Carl
>
> Cheers,
> --
> behdad
> http://behdad.org/
>
> "Those who would give up Essential Liberty to purchase a little
>  Temporary Safety, deserve neither Liberty nor Safety."
>         -- Benjamin Franklin, 1759
>
>
>
>

-- 
Michael.


More information about the cairo mailing list