[Cogl] Cogl in Python

[Martin Owens]

Hey Cogl Devs, (Just Robert and Neil?)

Version: libcogl9 1.10.0 / gir1.2-cogl-1.0

I'm using Cogl using gobject introspection, in conjunction with Clutter.
But I'm having a problem using materials. Trying to do anything with
Cogl objects causes a segfault, anything at all. Which means things
like:

m = ClutterTexture.get_cogl_material()
Cogl.set_source(m)

works ok, but:

m.set_color4ub(255, 255, 255, 128)
Cogl.Material.set_color4ub(m, 255, 255, 255, 128)
print m

Cause SEGFAULTS in Py_GetAttr, recursive_isinstance,  PyFile_WriteObject
respectively.

I did manage to workaround the SEGFAULT caused by cogl trying to unref
the material after it had existed in python. Using the `del m` to remove
it completely from the python namespace stops the odd duality.

Literally looking at cogl-material in the wrong way causes it to blow up
in ones face. I wonder what Clutter does that Cogl needs, maybe some
sort of cooling rod ;-). Any ideas either working around these issues or
trying to debug them using gdb, I'd be open to tracking through them.

Best Regards, Martin Owens