Commit Graph

8 Commits

Author SHA1 Message Date
Andy McFadden
41d67d7ab4 Improve SurfaceFlinger PTS estimation
Get the next refresh time from DispSync instead of guessing based
on the current time.

Change-Id: I8dc72a3217bfd4e9b4c905034194d1a298cad69a
2014-05-02 10:56:54 -07:00
Ruchi Kandoi
f52b3c88f1 SurfaceFlinger: Adds the functionality to reduce refresh rate to half of
the default.

Feature added for the low power mode.

Change-Id: I2849e5ea335c0d2509fea1c315392bce7f20451d
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
2014-05-01 18:29:33 +00:00
Mark Salyzyn
92dc3fc52c native frameworks: 64-bit compile issues
- Fix format (print/scanf)
- Suppress unused argument warning messages (bonus)

Change-Id: I05c7724d2aba6da1e82a86000e11f3a8fef4e728
2014-03-12 13:12:44 -07:00
Jamie Gennis
629b987818 DispSync: remove delay when enabling vsync events
This change fixes a bug that caused an extra frame of latency when enabling
vsync event callbacks in DispSync.  The bug was related to the logic that
prevents the two events from firing with very little time between them due to
updates to the vsync model.

Bug: 11479720
Change-Id: Ie7eaff9e92ffb7b7b6cb4d3d4402c96cbd29af7e
2013-12-02 21:06:09 -08:00
Jesse Hall
44e45cfeb3 Merge "DispSync: don't compensate for wakeup latency" into klp-dev 2013-10-13 20:13:59 +00:00
Jesse Hall
72f69d9f23 Wake up disp sync thread when setting display period
Bug: 10624956
Change-Id: I272c15f319521bfbd1bb70451366c7dd84d60bf9
2013-10-10 14:48:22 -07:00
Jamie Gennis
0d5c60edf1 DispSync: don't compensate for wakeup latency
This change removes the wakeup latency compensation from the software-generated
vsync events.  Choreographer can't handle timestamps in the future, so don't
aim for early wake-ups with the expectation that the actual wake-up will be
late.

Bug: 11153576
2013-10-09 17:56:42 -07:00
Jamie Gennis
faf77cce9d SurfaceFlinger: SW-based vsync events
This change adds the DispSync class, which models the hardware vsync event
times to allow vsync event callbacks to be done at an arbitrary phase offset
from the hardware vsync.  This can be used to reduce the minimum latency from
Choreographer wake-up to on-screen image presentation.

Bug: 10624956
Change-Id: I8c7a54ceacaa4d709726ed97b0dcae4093a7bdcf
2013-10-07 17:59:53 -07:00