[cairo] pangocairo misbehaves on Mac OS X 10.5 (using Quartz/ATSUI, no Xlibs)

Alex Shulgin alexander.shulgin at yessoftware.com
Wed Dec 23 08:02:11 PST 2009

Andrea Canciani wrote:
>>> Sorry for the delay, I had to install glib and pango.
>>> I managed to reproduce the problem, but I still have to investigate it.
>> Hi,
>> any progress on this?
> Basically the assertion is caused by an invalid assumption in cairo code.
> I have identified this problem, I don't have a fix ready, but I hope
> to find one soon (probably I'll need help from ickle and/or behdad).
> The incorrect rendering is a somewhat known bug, as the quartz font
> backend doesn't really (fully? correctly?) support the whole unicode,
> since it's based on CoreFont. To fix this problem a new font backend
> based on CoreText would be needed (and maybe fallback to ATSUI for
> backward compatibility), but this would be quite a big change.

These are some good news. :)

I need this for my job, so I'm willing to provide any possible help in 
debugging this issue.  Just let me know how can I help.


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