Commit Graph

9 Commits

Author SHA1 Message Date
Mathias Agopian
3cf199aef6 fix an issue with vsync event delivery
vsync events were sometimes delivered to connected
client who didn't request them. this happened if
another client requested the delivery and that client
was first in the client list.

also fix the vsync test which didn't request any events as
well as DisplayEventReveiver documentation which was misleading
about the necessity to request vsync events.

Change-Id: Ie990fda3f337f8f0042745c4b2cde67936c45686
2012-01-31 16:42:54 -08:00
Mathias Agopian
8aedd4737d SF now synchronizes to VSYNC
Change-Id: Ic5e4f2ea9927ce133eef9499c03161325e9d02c5
2012-01-30 15:21:23 -08:00
Mathias Agopian
82d7ab6c7e improve SurfaceFlinger dumpsys
It is now possible to say:

dumpsys SurfaceFlinger --latency

to print latency information about all windows

dumpsys SurfaceFlinger --latency window-name

to print the latency stats of the specified window

for instance: dumpsys SurfaceFlinger --latency SurfaceView

The data consists of one line containing global stats, followed by
128 lines of tab separated timestamps in nanosecond.

The first line currently contains the refresh period in nanosecond.
Each 128 following line contains 3 timestamps, of respectively
the app draw time, the vsync timestamp just prior the call to set and
the timestamp of the call to set.

Change-Id: Ib6b6da1d7e2e6ba49c282bdbc0b56a7dc203343a
2012-01-24 18:22:56 -08:00
Mathias Agopian
616c0cdf2c fix a bug with vsync management
this bug was introduced recently. we were signaling *all* clients
regardless of the vsync rate.

Change-Id: I2ae8a6c820a390f602382596ba75e8ed737fb2ef
2012-01-12 16:13:54 -08:00
Mathias Agopian
a72d0db292 Fix an issue with VSYNC
one-shot VSYNC listeners could miss a VSYNC event if
scheduled while in waitForVsync().

Change-Id: I720485784aecfea6cc7a23c77081d7af3c9c71db
2012-01-11 22:03:40 -08:00
Steve Block
a19954ab37 Rename (IF_)LOGI(_IF) to (IF_)ALOGI(_IF) DO NOT MERGE
See https://android-git.corp.google.com/g/156801

Bug: 5449033
Change-Id: Ib08fe86d23db91ee153e9f91a99a35c42b9208ea
2012-01-04 20:05:49 +00:00
Mathias Agopian
478ae5eb5a Improve the VSYNC api a bit.
- add the ability to set the vsync delivery rate, when the rate is
set to N>1 (ie: receive every N vsync), SF process' is woken up for
all of vsync, but clients only see the every N events.

- add the concept of one-shot vsync events, with a call-back
to request the next one. currently the call-back is a binder IPC.

Change-Id: I09f71df0b0ba0d88ed997645e2e2497d553c9a1b
2011-12-06 22:43:10 -08:00
Mathias Agopian
23748668d3 fix a deadlock when removing a DisplayEventConnection
the deadlock would happen when the pipe became invalid and SF
trying to remove the connection from its list.

we know make sure to process events without holding a lock.

Change-Id: I39927ed8824fc7811e16db3c7608a2ebc72d9642
2011-12-05 19:58:47 -08:00
Mathias Agopian
d0566bc26f Add support for sending VSYNC events to the framework
use gui/DisplayEvent to receive the events. Events are
dispatched through a unix pipe, so the API is compatible
with utils/Looper. see gui/DisplayEvent.h for more info.

Bug: 1475048
Change-Id: Ia720f64d1b950328b47b22c6a86042e481d35f09
2011-11-29 13:10:25 -08:00