kc3-lang/angle

2021-03-31T12:52:00

Reland "Fix multithreaded crash on draw commands on D3D11 backend." This is a reland of 8b9889bf62272fea2495331b622bde1f7c781bd0 The previous CL relied on a define which now only exists in a specific gn configuration. This reland removes D3D11 as a multithread-supported platform in the test configuration. Original change's description: > Fix multithreaded crash on draw commands on D3D11 backend. > > A crash can occur if thread A is executing eglDestroyContext while > thread B issues a draw call, if the threads are interleaved in such a > manner that a makeCurrent occurs without triggering a change to the > global context and a dirtyAllState call. We handle that case by > explicitly making current the proper contexts in the eglDestroyContext > call. > > A test has been added that triggers a crash without this fix when > running on the D3D11 backend. In addition, all of MultithreadingTest > is enabled for the D3D11 backend. > > Test: Ran MultithreadingTest. Test exhibits a crash before this > change, and does not after this change. Also ran: > dEQP-EGL.functional.sharing.gles2.multithread.* > dEQP-EGL.functional.multithread.* > > Bug: b/183756357 > Change-Id: Ic6f76a062868b2f3b4e60d29dc087ec180bfb7cd > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2798591 > Reviewed-by: Geoff Lang <geofflang@chromium.org> > Reviewed-by: Jamie Madill <jmadill@chromium.org> > Commit-Queue: Doug Horn <doughorn@google.com> Bug: b/183756357 Change-Id: I5be9a011ea99a69730eddc9e4da23bcf92ed3bf2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2815243 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Doug Horn <doughorn@google.com>