kc3-lang/angle

2022-04-18T18:36:03

Metal:Clear Backbuffer when Robust Resource Init enabled In trying to optimize readPixels (see: https://chromium-review.googlesource.com/c/angle/angle/+/3584423) the test RobustResourceInitTest.SurfaceInitialized was failing. Digging into it it turns out that backbuffer surfaces were not being cleared. WindowSurfaceMtl was losing initialization requests due to back-to-back calls to ensureCurrentDrawableObtained. Refactor surface preparation and track initialized state separately. Bug: angleproject:7117 Change-Id: Ic7eac9e77c4412c55340039a21be63e39b2abc0c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3590971 Reviewed-by: Kenneth Russell <kbr@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Gregg Tavares <gman@chromium.org>