Chris Wilson 03c3d4b7c1 tor: Fix loss of precision from projection onto sample grid ...

The goal is to preserve the precision in the gradients of the edges and
only apply the projection into the final cell location. We also include
the half-subrow offset as spotted by Massimo.

References: https://bugs.freedesktop.org/show_bug.cgi?id=84396
Testcase: coverage-rhombus
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

2014-09-30 12:01:13 +01:00

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