[Mesa-dev] [RFC PATCH] Add support for ARB_vertex_type_2_10_10_10_rev on i965

[Chris Forbes]

This series almost adds support for ARB_vertex_type_2_10_10_10_rev on i965.
Working from the Sandybridge and Ivybridge PRMs, this ought to work (what look
like the correct dwords end up in the batch, etc).

Details pieced together from both PRMs, since the Sandybridge PRM references
surface format encodings which aren't in its master table, and the Ivybridge
PRM is missing the data on which formats are usable in vertex buffers.

Any hints on what I'm missing -- and trying it on an Ivybridge machine, where
the formats *definitely* ought to all exist -- would be appreciated.