tree 42299de67a0088fb4416dba825e40f5b6a22312a
parent 06b6aed2f158d48ae04c4854d2a8832777ac942e
author Andy McFadden <fadden@android.com> 1372452760 -0700
committer Andy McFadden <fadden@android.com> 1373495920 -0700

Pay attention to buffer timestamps

When acquiring a buffer, SurfaceFlinger now computes the expected
presentation time and passes it to the BufferQueue acquireBuffer()
method.  If it's not yet time to display the buffer, acquireBuffer()
returns PRESENT_LATER instead of a buffer.

The current implementation of the expected-present-time computation
uses approximations and guesswork.

Bug 7900302

Change-Id: If9345611c5983a11a811935aaf27d6388a5036f1