[Mesa-dev] [PATCH V4 00/19] ARB_texture_multisample support

[Chris Forbes]

This series adds the core mesa bits for ARB_texture_multisample, and support
in the i965 driver for Gen6 and Gen7.

I've addressed the issues that were raised for V3, and also fixed some other
bugs which I found while beefing up the piglit coverage for this.

- Proxy texture targets were denied in glTexImage*Multisample.
- I was lying to the i965 fs regalloc about how many regs were written by
   the sampler message, so it was clobbering the results in nontrivial shaders.

Things for another day:
- CMS layout support on Gen7.
- Verify multisample depth arrays. Until this is done, we only advertise
   MAX_DEPTH_TEXTURE_SAMPLES=1.

A follow-up series addresses the interactions between this extension, classic
multisample renderbuffer creation, and internalformat_query, which resolves the
remaining TODO in 12/19.

-- Chris