tree c3a5b0fc5c6ebe9f1fbe9472f6e608a8fb58274f
parent b85356b1fb76e2b60213bf29982a3f5f164d6dfc
author Kai Ninomiya <kainino@chromium.org> 1519325078 +0000
committer Kai Ninomiya <kainino@chromium.org> 1519325078 +0000

Use 4x MSAA on Mac/Intel to avoid perf regression

On Mac/Intel, the default 8x MSAA causes huge performance regressions
specifically in WebGL contexts with {alpha:false,antialias:true}.

Add a workaround to fall back to 4x MSAA on Mac/Intel devices.

Adds pixel test suppressions that will be removed, after rebaseline,
in https://crrev.com/c/924310

TBR=kainino@chromium.org

Bug: 812071
Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: Ifd2283f6b232371cb63d67a8641236073cb0b4da
Reviewed-on: https://chromium-review.googlesource.com/923103
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#537993}(cherry picked from commit 28cc4cd37aa9c4e27d882c249092098197920133)
Reviewed-on: https://chromium-review.googlesource.com/932007
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Cr-Commit-Position: refs/branch-heads/3325@{#552}
Cr-Branched-From: bc084a8b5afa3744a74927344e304c02ae54189f-refs/heads/master@{#530369}