pango 1.30.1 coretext bug

[markau0@…]

pango 1.30.1 has a coretext bug that can cause the errors below.

The current MacPorts pango version seems to be 1.30.1 which probably contains the coretext bug.

GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' 

GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' 

Pango-CRITICAL **: _pango_cairo_font_map_get_renderer: assertion `PANGO_IS_CAIRO_FONT_MAP (fontmap)' failed

pango 1.30.0 doesn't have the coretext bug and is ok.

The bug was introduced with pango 1.30.1 and fixed in a later version

Introduced bug from pango 1.30.1 ChangeLog

commit f5135453d26e68f9f2fbe8f0ddb01e437df41384
Author: Kristian Rietveld <kris@loopnest.org>
Date:   Mon Jun 4 20:27:01 2012 +0200

    Bug 673497 - corefont fallback not always working

    The fallback failed when a "small caps" font was requested. This
    commit
    improves the fallback support. When the first fallback, trying
    Sans with
    the same style fails, we reset the variant, weight and stretch to
    default values and try again. With Sans we should always be able to
    adhere to the requested style.

    Last but not least, output a sensible error message if all fallbacks
    fail instead of simply crashing on a NULL pointer somewhere.

and fixed in the pango later than 1.30.1 ChangeLog

commit 70a85d441d973883af4afb57599bc570eeea4c83
Author: Kristian Rietveld <kris@loopnest.org>
Date:	Tue Jun 5 22:34:59 2012 +0200

    coretext: don't insert item in the hash if it originated from the hash

    Oversight in my fallback fix, this resulted in things being wrongly
    destroyed due to unrefs. Oops.

 pango/pangocoretext-fontmap.c | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

[ryandesign (Ryan Carsten Schmidt)]

Thanks for the report! Of course I want to update pango to 1.32 but that is delayed for now, so I'll see if I can cherry-pick this fix until then.

[ryandesign (Ryan Carsten Schmidt)]

r100042