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author Alec Mouri <alecmouri@google.com> 2019-07-25 15:22:29 -0700
committer Jorim Jaggi <jjaggi@google.com> 2019-07-28 22:10:58 +0000
commitf941c1ea7e58e5bbe050e871165050f86b79f107 (patch)
tree3acf4f324407858d1e3fc6ef1960b52a8fd7f929 /services/surfaceflinger/ClientCache.cpp
parenta604f0a824862dca82715e6183497752d57c4442 (diff)
[RenderEngine] Allow rounded corners shader to use lower precision.
Big corner radii would cause problems at lower precision because computing a vector norm would overflow. But since highp tanks performance, instead scale down and back up by a power of 2 during the normalization operation, so that a higher precision is not required. Bug: 137191934 Test: eyeballing systrace when opening Photos, GPU seems to take shorter time and no jank is observed Test: Stepping through frames from a Pixel 3 XL screenrecording shows that the beginning of the app opening animation is rounded instead of square Change-Id: Ie7a39bd0f992f7f42414ef49de9873775cc34409 Exempt-From-Owner-Approval: Approved in qt-r1-dev
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