Commit Graph

21 Commits

Author SHA1 Message Date
Jamie Gennis
54cc83e8a4 Implement reducing the buffer count of a Surface.
Change-Id: I7f979c60c06d654aa8265002836277434bc1a64f
Bug: 3095167
2010-11-11 14:06:38 -08:00
Mathias Agopian
19957553cb fix [2835280] Add support for cancelling buffers to ANativeWindow
There is a new ANativeWindow::cancelBuffer() API that can be used to
cancel any dequeued buffer, BEFORE it's been enqueued. The buffer is
returned to the list of availlable buffers. dequeue and cancel are not
mutually thread safe, they must be called from the same thread or
external synchronization must be used.

Change-Id: I86cc7985bace8b6a93ad2c75d2bef5c3c2cb4d61
2010-10-04 20:10:11 -07:00
Mathias Agopian
0e7f4292c7 fix a race in SF buffer management
also remove some unused code.

Change-Id: Iae2c3309b7a08055f3e13a5b866c5c084993e352
2010-08-26 17:42:27 -07:00
Mathias Agopian
b661d66013 fix [2931513] Add support for setting the orientation of an ANativeWindow
Also implement support for cropping.

Change-Id: Iba5888dd242bf2feaac9e9ce26e404c1f404c280
2010-08-24 15:40:50 -07:00
Mathias Agopian
208cb07724 fix [2873058] Surface::dequeueBuffer blocks on last buffer, i.e. cannot dequeue all allocated buffers at once.
this situation happened when the last buffer needed to be resized
(or allocated, the first time). the assumption was that the buffer
was in use by SF itself as the current buffer (obviously, this
assumption made no sense when the buffer had never been allocated, btw).

the system would wait until some other buffer became the "front" buffer.

we fix this problem by entirely removing the requirement that the
buffer being resized cannot be the front buffer. instead, we just
allocate a new buffer and replace the front buffer by the new one.

the downside is that this uses more memory (an extra buffer) for a
brief amount of time while the old buffer is being reallocated and
before it has actually been replaced.

Change-Id: I022e4621209474ceb1c671b23deb4188eaaa7285
2010-07-27 20:11:35 -07:00
Mathias Agopian
579b3f88d0 allow re-targetting of surfaces
Surfaces can now be parcelized and sent to remote
processes. When a surface crosses a process
boundary, it looses its connection with the
current process and gets attached to the new one.

Change-Id: I39c7b055bcd3ea1162ef2718d3d4b866bf7c81c0
2010-06-08 20:10:02 -07:00
Mathias Agopian
b7e930db17 split surface management from surface's buffers management
Change-Id: If3c5655d1231f8f0c49ba68f972b1b20c93b3f87
2010-06-04 18:57:41 -07:00
Mathias Agopian
7e27f05739 more clean-up in preparation of bigger changes
the most important change here is the renaming of
ISurfaceFlingerClient to ISurfaceComposerClient

Change-Id: I94e18b0417f50e06f21377446639c61f65f959b3
2010-05-28 17:19:16 -07:00
Mathias Agopian
631f358d34 fix [2712278] The preview buffer left some black borders in left and bottom edges
we were incorrectly flagging push_buffer surfaces as invalid

Change-Id: I4dfd4ffbbe8a71f7e23e835db8d71966416c29bb
2010-05-25 17:51:34 -07:00
Mathias Agopian
a138f89c5e added the notion of fixed-size buffers
the new native_window_set_buffers_geometry allows
to specify a size and format for all buffers to be
dequeued. the buffer will be scalled to the window's
size.

Change-Id: I2c378b85c88d29cdd827a5f319d5c704d79ba381
2010-05-24 18:26:01 -07:00
Mathias Agopian
a0b3f1d2eb fix a bug when reallocating a window's buffers is needed
we need to mark the buffers that need to be reallocated,
NOT the buffer's indices.

Change-Id: I809e2e1b03b56c4d2ab983c25523dae99aa1da74
2010-05-24 13:47:24 -07:00
Mathias Agopian
f10d7fde03 added native_window_set_buffer_count()
this method can be used to change the number of buffers
associated to a native window. the default is two.

Change-Id: I608b959e6b29d77f95edb23c31dc9b099a758f2f
2010-05-21 14:34:32 -07:00
Mathias Agopian
bb641244d7 fix the threading issue for setBuffercount()
this change introduces R/W locks in the right places.
on the server-side, it guarantees that setBufferCount()
is synchronized with "retire" and "resize".
on the client-side, it guarantees that setBufferCount()
is synchronized with "dequeue", "lockbuffer" and "queue"
2010-05-20 18:00:42 -07:00
Mathias Agopian
d6297f7d09 fix some bugs in SharedBufferStack::resize
added buffers should now be labeled properly.

Change-Id: I28aa753fbe89ab89134e7753575319478934c7fa
2010-05-17 17:27:26 -07:00
Mathias Agopian
b5b7f260da SharedBufferStack now can grow up to 16 buffers.
there is a new resize() api, which currently only allows growing.

Change-Id: Ia37b81b73be466d2491ffed7f3a23cd8e113c6fe
2010-05-12 17:28:20 -07:00
Mathias Agopian
c0a9164e9e Add support for enqueuing buffers in arbitrary order
Also added a very simple SharedBufferStack unit test.

Change-Id: I253dbbe98a53c966b78d22d4d6dd59f8aefc8c40
2010-04-28 16:12:54 -07:00
Mathias Agopian
b296533607 cleanup. waitForCondition() now uses polymorphsim instead of templtes
the reason for the above change is that waitForCondition() had become
large over time, mainly to handle error cases, using inlines to
evaluate the condition doesn't buys us much anymore while it increases
code size.

Change-Id: I2595d850832628954b900ab8bb1796c863447bc7
2010-04-28 16:12:54 -07:00
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
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
9cce325fae split libsurfaceflinger_client and libcamera_client out of libui 2010-02-11 13:16:22 -08:00