[Mesa-dev] st/mesa depth mode + sampler

[Dave Airlie]

Hi guys,

on softpipe, the 2D sampler tests which use an ALPHA depthmode are
failing, now the reason seems to be that the texture sampling puts the
compare value into A and 0 into RGB, but the writemask only stores the
X component from R and doesn't take the fact that it should be using
A.

I'm not 100% sure where this should be fixed, so maybe someone who
knows how it was meant to work can enlighten me.

Dave.