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28-Oct-2015 |
John Reck <jreck@google.com> |
Tune scheduling a bit, avoid a binder ipc
Don't query running behind if it's not possible to be behind such
as having received a vsync since the last call to swap buffers.
This also avoids an accidental-starvation issue where if surface
flinger was a bit sluggish to dequeue then renderthread would drop
thinking the queue was full.
Also be a bit smarter about tracking if we've already drawn for this
vsync target to avoid producing two frames for the same vsync
Change-Id: Ib266500a693c27000b2e8ea578f111229d75147a
/frameworks/base/libs/hwui/utils/TimeUtils.h
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