[Mesa-dev] [PATCH 4/4] i965/es3.1: Implement glMemoryBarrierByRegion

[Lofstedt, Marta]

> -----Original Message-----
> From: Matt Turner [mailto:mattst88 at gmail.com]
> Sent: Monday, August 3, 2015 5:20 PM
> To: Lofstedt, Marta
> Cc: Ilia Mirkin; mesa-dev at lists.freedesktop.org
> Subject: Re: [Mesa-dev] [PATCH 4/4] i965/es3.1: Implement
> glMemoryBarrierByRegion
> 
> On Mon, Aug 3, 2015 at 1:04 AM, Lofstedt, Marta
> <marta.lofstedt at intel.com> wrote:
> > However, I don't agree that the driver interface should be removed.
> > In my opinion, it is a driver specific decision if
> > glMemoryBarrierByRegion should be implemented directly on top of
> > glMemoryBarrier or if you want to do some optimizations.
> 
> It's as simple as "don't add it if you don't need it".
> 
> If another driver needs the driver interface to implement
> glMemoryBarrierByRegion, then it should be added. As it stands now, I don't
> see that i965 needs it.
> 
> > Why else would there be a specific glMemoryBarrierByRegion function
> > added to the standard?
> 
> Non-sequitur. There are plenty of functions in the GL API that don't have
> entries in the dd function table.

OK, I will comply.

Thanks for clarification.
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