tree 3d7ad6c8dcedbce1de93e0c17f44e7f2648d6d2f
parent 0f5658c72b495abc614f34f99067d7c662670ac3
author Kalle Raita <kraita@google.com> 1500414735 -0700
committer Kalle Raita <kraita@google.com> 1500414735 -0700

Add triangle edge guardband for Tex2D lookup diff

Previously 3D and cube textures allowed pixels along the seam of
triangles to use data from either triangle. This change copies that
allowance to the 2D texture computeTextureLookupDiff. The projection
values chosen for the mipmap.2d.projected group make the data
discontinous over the edge, making it sensitive to tie-breaker
resolution. This change resolves the issue.

Affects: framework

Test: Executed mipmap.2d.projected group with failing result images
Bug: 63335787
Change-Id: Ibaed590fb5e1bc9eb837c9027ddadcea2081f629