Commit aa6dd50de0c5253d56caf37b9691dd61a5f670fd
2020-02-03T17:10:58
Share scratch buffers between contexts. The Display now owns scratch buffers and loans them out to contexts while they are current. This allows us to to only allocate one scratch buffer in a single-threaded use case. Tick the scratch buffers every time a new context is made current. Lower the lifetime from 1000 to 64 to ensure that in the worst case, the buffers are cleared after not being used for ~1 second. BUG=chromium:1030835 BUG=angleproject:4363 Change-Id: I83552424e2beac62b9e41152876b04fc84f53692 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2031698 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org>