kc3-lang/angle

2022-09-23T13:17:34

Metal: Avoid locking IOSurfaces in glReadPixels on AMD. The AMD driver tends to crash when locking IOSurfaces. Avoid this by using the copyIOSurfaceToNonIOSurfaceForReadOptimization feature to do a texture-texture copy before reading back data to the CPU. This is a *speculative* fix due to seeing crashes in the ClientLockIOSurface function in the AMD driver. Bug: angleproject:7573 Change-Id: Ia120f2a96eed65431b5f8a99cf1da7d7e85da639 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3915181 Reviewed-by: Kenneth Russell <kbr@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Gregg Tavares <gman@chromium.org>