Commit Graph

7 Commits

Author SHA1 Message Date
Mathias Agopian
0a8cd0689a fix a race condition in undoDequeue(), where 'tail' could be computed incorrectly.
in the undoDequeue() case, 'tail' was recalculated from 'available' and 'head'
however there was a race between this and retireAndLock(), which could cause
'tail' to be recalculated wrongly.

the interesting thing though is that retireAndLock() shouldn't have any impact
on the value of 'tail', which is client-side only attribute.
we fix the race by saving the value of 'tail' before dequeue() and restore it
in the case of undoDequeue(), since we know it doesn't depend on retireAndLock().

Change-Id: I4bcc4d16b6bc4dd93717ee739c603040b18295a0
2010-04-28 16:12:54 -07:00
Mathias Agopian
245e4d78c5 better fix for [2420565] Surface.lockCanvas() updates the dirty region too often
Change-Id: I83438b40effd21538f1c74396dc665254b9d5ab6
2010-04-21 22:25:35 -07:00
Mathias Agopian
cc08e688f5 added setCrop() to android_native_window_t
hooked up the new method up to Surface.cpp
the actual crop is not implemented in SF yet

Change-Id: Ic6e313c98fd880f127a051a0ccc71808bd689751
2010-04-20 13:36:29 -07:00
Mathias Agopian
1100c8b901 add support for up to 16 buffers per surface
also increase the dirtyregion size from 1 to 6 rectangles.
Overall we now need 27KiB process instead of 4KiB

Change-Id: Iebda5565015158f49d9ca8dbcf55e6ad04855be3
2010-04-20 13:36:29 -07:00
Mathias Agopian
26d244281a libutils Condition are now PRIVATE by default
Condition must be initialized with SHARED for the old behavior, where
they can be used accross processes.

Updated the two places android that require SHARED conditions.

PRIVATE conditions (and mutexes) use more efficient syscalls.

Change-Id: I9a281a4b88206e92ac559c66554e886b9c62db3a
2010-03-19 16:16:43 -07:00
Mathias Agopian
c2e30de00c Fix a small bug where we could compute SharedBufferStack's tail incorrectly.
Also add "tail" to the debug dump().

Change-Id: I04b1ea375dfc9ddcc22f0c6b6cd01300e507572e
2010-03-08 19:23:26 -08:00
Mathias Agopian
9cce325fae split libsurfaceflinger_client and libcamera_client out of libui 2010-02-11 13:16:22 -08:00