[cairo] Cairo with glitz backend

[Argiris Kirtzidis]

Hi Chris,

Chris Wilson wrote:
> So currently aside from glitz, there are experiments to show that simply
> doing basic compositing using OpenGL can be much faster than XRender:
> http://cgit.freedesktop.org/~anholt/cairo/log/?h=gl and
> http://cgit.freedesktop.org/~ickle/cairo/log/?h=opengl A slightly more
> ambitious (though it does have quite a few fundamental flaws of its own,
> chiefly among those is that he hasn't asked anyone from the cairo
> community to review it...)
> http://github.com/akyrtzi/cairo-gral/tree/master And my favourite
> (slightly biased since I'm the author ;-) is an example of what you can
> achieve with direct rendering:
> http://cgit.freedesktop.org/~ickle/cairo/log/?h=drm which, I claim, is
> just about as fast as you can make cairo on an eee/i915. (I welcome any
> patches to make it, and cairo, even faster :-)
>   

I'm the one to "blame" for http://github.com/akyrtzi/cairo-gral/tree/master
The reason I didn't introduce it in the cairo community is that I want 
to make sure that it is working on linux first (only tested on windows 
currently)
and preferably get it to work directly with OpenGL (not Ogre3D).

In any case, since it got noticed after all, I would appreciate and be 
very interested to hear your thoughts about the fundamental flaws that 
you found in the "cairo-gral" approach.

-Argiris

> -ickle
>
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