[cairo] How to test the gl backend?

[Clemens Eisserer]

Hi,

> I would like to start testing the gl backend and see if I could write
> a development snapshot of a gtk+ engine that uses this backend.

That would probably make not a lot of sence, because the stuff you
draw *to* are still X windows, so as far as I know you would have to
change GTK+ to use OpenGL contexts instead.
However, again, as far as I know, GTK uses a lot ob child-windows so
you would probably need a lot of OpenGL contexts which doesn't work
that well.

- Clemens