[Mesa-dev] [RFC PATCH V2] i965: add ARB_vertex_type_2_10_10_10_rev support

[Chris Forbes]

This series adds support for ARB_vertex_type_2_10_10_10_rev on i965.
Notable changes from V1:

* Extra SURFACEFORMAT flags are no longer needed, so the first patch
	was dropped.
* Spurious extra debug patches removed.
* All 2_10_10_10 attributes are uploaded as UINT, and the vertex
	shader does the rest.

Remaining things to do:

* Port 5/6 to the new VS backend so it works with GLSL too.
* Tidy up the normalization.

In its current state, this series passes piglit draw-vertices-2101010
on at least gen6.

-- Chris