tree f3c277b1daa514610cb98333ff2de68408caa945
parent be7c55a2a8cebd46ba6912e6b7d4dae8353d154c
author Nicolas Capens <capn@google.com> 1596045582 -0400
committer Nicolas Capens <nicolascapens@google.com> 1596722991 +0000

Zero out texel index after sample and layer offset

This ensures that if the sample or layer coordinate were not forced to
be in range but the 'valid' mask indicates whether they're in range,
we sample texel 0 instead of potentially outside the image memory.

Note this does not yet validate the sample coordinate.

Bug: b/162419571
Change-Id: I08561862cbf371c1109c8949cd90557110d4ee24
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/47228
Presubmit-Ready: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>