[Mesa-dev] [RFC 01/27] i965: Remove unused sampler key fields

[Chris Forbes]

Ken,

Just noticed -- all those fields that we're keeping need to be widened
to uint32_t for 32 samplers. None of our sampler quirks get flagged
correctly for `high` samplers on Haswell at present. I'll send some
patches for that this evening if no one beats me to it.

-- Chris

On Tue, Feb 25, 2014 at 8:00 AM, Kenneth Graunke <kenneth at whitecape.org> wrote:
> On 02/24/2014 10:48 AM, Ian Romanick wrote:
>> It seems very weird that these are unused.  Are GL_YCBCR_MESA just
>> completely broken on our driver?  If so, we should probably disable that
>> extension...
>
> Yeah.  The old fragment shader backend had code for this, which used
> these fields, but the new backend never had any.  So, I'm pretty sure
> GL_YCBCR_MESA has just been broken since Mesa 7.10.
>
> I'm in favor of dropping it.  I think mplayer had code to use it, and
> they've just moved on to other paths at this point.
>
>
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