-- numHwLayers==1 means that there is only the FB_TARGET which HWC shouldn't
draw. Also check for blank in set. Checking for this in prepare prevents us
from acquiring pipes.
-- add null check for private handle
-- print out vsync timestamp data on error
bug: 7274417
related-to-bug: 7288769
Change-Id: I8dae0d0748c5226fdc33ed8f5cc5259835dec2de
Signed-off-by: Iliyan Malchev <malchev@google.com>
Fix some race conditions between hwc_eventControl and the hwcVsyncThread.
Bug: 7274951
Change-Id: Ic71d65918303b4cef6a379ff5397702b2b578373
Signed-off-by: Iliyan Malchev <malchev@google.com>
* Read sysfs entries to get vsync timestamp from kernel.
* External display continues to use uevents for hotplug events
* A new thread, vsyncThread is created to read and send vsync
timestamps to HAL.
* Disable H/W VSYNC for MDP 5.x targets until kernel changes are
complete.
* Synchronization is needed to make sure read() is not called
by hwcVsyncThread when VSYNC is disabled.
Change-Id: Iab0a94a3cfce9142b8867859f2a7d9bcaecb0996
Acked-by: Neti Ravi Kumar <ravineti@codeaurora.org>
