[cairo] 1.6: 16.6 -> 24.8 for fixed-point storage

Sebastien Pouliot sebastien at ximian.com
Mon Jan 28 10:14:05 PST 2008

Hello Carl,

On Sun, 2008-01-27 at 22:55 -0800, Carl Worth wrote:
> On Thu, 24 Jan 2008 12:43:35 -0800, Carl Worth wrote:
> > As for 1.6, there's a lot that has already been done, but there's also
> > a fair amount left. Here are the 5 items on the roadmap currently and
> > who's "on the hook" for each of them:
> ...
> > 	• 16.16 -> 24.8		vlad
> Vladimir tells me that the Mozilla folks have been running this code,
> (on non-Linux systems), for a while now without problems. And Larry
> Ewing also says it's working well for him.

Not to contradict Larry but moonlight still have an issue with 24.8
The original crash now seems to be an infinite loop.

It was reported on the mailing-list a while back 
by Fernando (who did a C test case still available on pastebin).

This wasn't fixed with the recent Cairo update(*) Larry did last week.
(*) 188765c8e857c88a66656a454a3dbd27c32170f7

> I just turned it on and ran "CAIRO_TEST_TARGET=image make test". I see
> several new "FAILS" in the test suite, but looking at the result it
> looks like almost all of them are simply changes in the details of
> rasterization, but no actual failures.
> So I'll go ahead and update all such images, and push this, (on top of
> all the other recent patches I posted---and probably with the new
> function name that Behdad suggested).
> And as soon as I do that[*] I'll push a 1.5.8 snapshot out and ask
> people to pound on all these things as much as they can.
> Then the only thing left for 1.6 will be doing the image conversion to
> deal with goofy X server visuals (including pseudocolor).
> This is definitely fun stuff.
> -Carl
> [*] No, wait! I really need to land Antoine's new CAIRO_EXTEND_PAD
> patch and Jeff's performance improvement before this snapshot too. So
> don't let me forget that, (or heckle me mercilessly).
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