[Mesa-dev] Private window system depth/stencil buffers

[Chad Versace]

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On 07/04/2012 10:52 AM, Eric Anholt wrote:
> We've been talking about doing this for a long time -- ignore the piece of
> the GLX spec about clients sharing auxiliary buffers across address spaces,
> and just allocate our own buffers.  Ever since HiZ we think it's probably
> been broken, and it was probably just going to get worse with window system
> MSAA buffers without reams of code for communicating the state between
> processes.
> 
> This doesn't convert back buffers (we would need a swapbuffers and 
> copyregion interface that took a BO instead of an attachment point) or the
> fake front buffer (I'd really like to bring that into the client, but that
> requires new interfaces between the loader and driver so the driver can
> implement glXWaitGL/X).
> 
> Passed piglit, and I resized a glxgears a bunch, but we know we're weak on
> glx testing in piglit.

I've wanted to do this for a long time, but never had the guts to do it :)

All but patch 2 have my review. I think that patch actually needs to kill more
code. And I think it breaks things on pre-gen6. See my reply there.

- ----
Chad Versace
chad.versace at linux.intel.com


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