[PATCH] glamor: Don't unbind the GL_ARRAY_BUFFER in glamor_put_vbo_space().

[Kenneth Graunke]

On Sunday, January 04, 2015 04:47:49 PM Keith Packard wrote:
> Eric Anholt <eric at anholt.net> writes:
> 
> > I think this will break glamor_xv.c and Xephyr, but I'm definitely in
> > favor of just making those explicitly bind their VBO state instead (or
> > maybe just use the same VBO if we can).
> 
> I think we're going to rework a bunch of this code when we switch to
> vertex arrays anyways? In any case, it sounds like we need to cache
> which VBO is bound and avoid calling into GL when we don't need to.

That's true.  I should probably just resurrect your Xephyr VAO patch, and
extend it for the rest of Glamor as well.

Can we require VAO support?  The GL_ARB_vertex_array_object extension has
been supported everywhere for years.  It looks like there's an ES2 extension
extension as well: GL_OES_vertex_array_object.  Both Mesa and PVR appear to
support it; I wasn't able to find information about other drivers.
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