[cairo] New OpenGL backend merged

[John C. Turnbull]

> -----Original Message-----
> From: cairo-bounces at cairographics.org [mailto:cairo-
> bounces at cairographics.org] On Behalf Of Behdad Esfahbod
> Sent: Wednesday, 22 July 2009 22:16
> To: Chris Wilson
> Cc: cairo at cairographics.org
> Subject: Re: [cairo] New OpenGL backend merged
> 
> On 07/22/2009 03:40 AM, Chris Wilson wrote:
> > I've have pushed Eric's OpenGL backend to master [1]. My opinion is
> that
> > this was the most suitable basis for building a new high-level GL
> > backend. It almost entirely passes the test suite [2] and we should
> aim
> > to keep the test suite passing in each future step.
> 
> Nice!
> 
> Should we remove cairo-glitz?

For a Cairo n00b like me, could someone explain exactly what an OpenGL
back-end for Cairo is?  Does it mean that all rendering is done using OpenGL
or is it that 2D graphics rendering is done using Cairo and all 3D rendering
done using OpenGL?

Thanks,

-JCT