[Mesa-dev] Conditional rendering on i965

[Kenneth Graunke]

On Tuesday, November 04, 2014 05:31:55 PM Neil Roberts wrote:
> Hi,
> 
> I was thinking of taking a look at implementing proper conditional
> rendering for i965. Currently it looks like we cheat to implement this
> and just stall the GPU to wait for the result before deciding whether to
> issue the 3DPRIMITIVE command. I think Gen7+ can support it in hardware
> with the MI_PREDICATE command and the predicate enable bit in the
> 3DPRIMITIVE command.
> 
> Would this be a good thing to work on or has someone already done it? If
> no-one objects I'll just get cracking on that.
> 
> - Neil

That would be fantastic - thanks Neil!  I don't think it should be terribly 
hard; it just hasn't gotten done.

--Ken
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