tree 756ed49e76eb52abc3b1e8ec7cb962b9a627fcc6
parent 2a7dde58036e02b2417e49c8965d4a518d981b0b
author Dan Stoza <stoza@google.com> 1431460576 -0700
committer Dan Stoza <stoza@google.com> 1431461417 -0700

Fix PTS handling for buffer replacement

This changes the way that SurfaceFlinger's shadow buffer management
works such that instead of tracking the size of the shadow queue in the
BufferQueue, SF tracks the last frame number it has seen, and passes
that into the acquireBuffer call. BufferQueueConsumer then ensures that
it never returns a buffer newer than that frame number, even if that
means that it must return PRESENT_LATER for an otherwise valid buffer.

Change-Id: I3fcb45f683ed660c3f18a8b85ae1f8a962ba6f0e