Layer::lockPageFlip() and layer::onRemove() could be called on
different threads and race such that lockPageFlip() successfully
called mSurfaceTexture->updateTexImage() but then gets NULL back from
mSurfaceTexture->getCurrentBuffer(), leading to a crash.
This change moves Layer::onRemove() calls to
SurfaceFlinger::commitTransaction() so they happen after the Layer is
done being drawn from and only happen on the main surfaceflinger
thread.
Change-Id: I4b550caadff4cc1878d7c3bca6129193fb0c713e
The ScreenShot layer is now created hidden. The screenshot itself
is aquired during the transaction when the layer is made visible.
This guarantees the screenshot and the layer happen atomically
with respect to screen updates.
Bug: 5534521
Change-Id: Ida23e1f13d5716ec83b78a15712e0646d6cf8729
We now have mInvalidateRegion which holds the region to invalidate, it
can be set from any thread as long as mInvalidateLock is held. We use
fine-grained locking here because mInvalidateRegion can be set from anywhere,
in particular frmo HWC callbacks.
Bug: 5466774
Change-Id: Iafca20aa3f5b25a87755e65bde7b769aa8f997bc
A LayerScreenshot is a special type of layer that contains a screenshot of
the screen acquired when its created. It works just like LayerDim.
Make sure to call compositionComplete() after rendering into a FBO.
Bug: 5446982, 5467587, 5466259
Change-Id: I5d8a1b4c327f9973d950cd4f4c0bca7f62825cd4
This change removes the dead code from SurfaceFlinger that resulted from
disabling support for freezing the display.
Change-Id: I4e5ff00c94b4c7a79af2f65c9850c135210068ed
This change enables a layer or orientation update transaction sent to
SurfaceFlinger to explicitly request a synchronous transaction.
Change-Id: I97cbba610c13679849f66114b216fa6dbf12f2a9
A LayerScreenshot is a special type of layer that contains a screenshot of
the screen acquired when its created. It works just like LayerDim.
Bug: 5446982
Change-Id: I7814aff2380e7e146937f2b641907be2a30c76cc
This change merges the ISurfaceComposer::setOrientation functionality
into ISurfaceComposer::setTransactionState. It enables the window
manager to atomically update both the display orientation and the
position and size of the windows in a single transaction with
SurfaceFlinger.
Bug: 5439574
Change-Id: I18a8ccc564d7d760ef8afb2d015ccdb7a7963900
this would happen when toggling on/off/on very fast, the screen
could stay black (while the panel is on).
Bug: 5429724
Change-Id: Ic8aa6aff066e6267923c0d47ef65e314e7bb6d41
This change modifies SurfaceFlinger's screenshot behavior when a layer
with a protected buffer is visible. The previous behavior was to simply
fail the screenshot. The new behavior is to render the screenshot using
a placeholder texture where the protected buffer would have been.
Change-Id: I5e50cb2f3b31b2ea81cfe291c9b4a42e9ee71874
Bug: 4981385
Simplify the orientation changing code path in the
WindowManager. Instead of the policy calling setRotation()
when the sensor determined orientation changes, it calls
updateRotation(), which figures everything out. For the most
part, the rotation actually passed to setRotation() was
more or less ignored and just added confusion, particularly
when handling deferred orientation changes.
Ensure that 180 degree rotations are disallowed even when
the application specifies SCREEN_ORIENTATION_SENSOR_*.
These rotations are only enabled when docked upside-down for
some reason or when the application specifies
SCREEN_ORIENTATION_FULL_SENSOR.
Ensure that special modes like HDMI connected, lid switch,
dock and rotation lock all cause the sensor to be ignored
even when the application asks for sensor-based orientation
changes. The sensor is not relevant in these modes because
some external factor (or the user) is determining the
preferred rotation.
Currently, applications can still override the preferred
rotation even when there are special modes in play that
might say otherwise. We could tweak this so that some
special modes trump application choices completely
(resulting in a letter-boxed application, perhaps).
I tested this sort of tweak (not included in the patch)
and it seems to work fine, including transitions between
applications with varying orientation.
Delete dead code related to animFlags.
Handle pausing/resuming orientation changes more precisely.
Ensure that a deferred orientation change is performed when
a drag completes, even if endDragLw() is not called because the
drag was aborted before the drop happened. We pause
the orientation change in register() and resume in unregister()
because those methods appear to always be called as needed.
Change-Id: If0a31de3d057251e581fdee64819f2b19e676e9a
we need to clear the whole framebuffer in that situation because
we can't trust the content of the FB when partial (fb preserving)
updates are used.
Bug: 5318492
Change-Id: I3f0e01b0fb665a34e44d88ad9f0f54a5d990060b
we were not redrawing and/or clearing the FB properly when
hwc moved a layer from/to FB to/from OVERLAY.
In these cases we needed to expand the dirty region to include
the layer that changed mode.
Also split composeSurfaces() which was becoming quite large.
Change-Id: Id6fa1acfc4ff694037fddf7efd037a4405732073
This change fixes the NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER query of
Surface and SurfaceTextureClient. Surface now uses the inherited
SurfaceTextureClient implementation of this query. SurfaceTextureClient
now queries SurfaceFlinger to determine whether buffers that are queued
to its ISurfaceTexture will be sent to SurfaceFlinger (as opposed to
some other process).
Change-Id: Iff187e72f30d454229f07f896b438198978270a8
this is disabled by default. To enable:
setprop debug.sf.ddms 1
this debug option requires to restart SurfaceFlinger
Change-Id: Ic2f8050b29911b55bcd21721648b6978700c277d
This is intended to absorb the cost of the IPC
to the permission controller.
Cached permission checks cost about 3us, while
full blown ones are two orders of magnitude slower.
CAVEAT: PermissionCache can only handle system
permissions safely for now, because the cache is
not purged upon global permission changes.
Change-Id: I8b8a5e71e191e3c01e8f792f253c379190eee62e
Add the concept of synchronous dequeueBuffer in SurfaceTexture
Implement {Surface|SurfaceTextureClient}::setSwapInterval()
Add SurfaceTexture logging
fix onFrameAvailable
The transaction flags were atomically read-and-cleared to determine if
a transaction was needed, in the later case, mStateLock was taken to
keep the current state still during the transaction. This left a small
window open, where a layer could be removed after the transaction flags
were checked but before the transaction was started holding the lock.
In that situation eTraversalNeeded would be set but only seen during the
next transaction cycle; however, because we're handling this transaction
(because of another flag) it will be commited, "loosing" the information
about the layer being removed -- so when the next transaction cycle due
to eTraversalNeeded starts, it won't notice that layers have been removed
and won't populated the ditchedLayers array.
Change-Id: Iedea9e25fee8dd98a0c5bd5ad41a20fcadf75b47
Client::mLayers could be accessed from different threads.
On one side from Client::attachLayer() which is currently
called from a binder thread; on the other side from
Client::detachLayer() which is always called from the main
thread.
This could lead to a corruption of Client::mLayers.
We fix this issue by adding an internal lock to Client.
Change-Id: Ib1317d7750ed5030e6f577efe34b69fc10198bd3
This leak was intentional, it was there to deal with the fact that
some gralloc implementations don't track buffer handles with
file-descriptors so buffers needed to stay alive until there were
registered, which is not guaranteed by binder transactions.
In this new implementation, we use a small BBinder holding a
reference to the buffer, which with tuck into the parcel. This forces
the reference to stay alive until the parcel is destroyed, which
is guaranteed (by construction) to happen after the buffer is
registered.
this allows the public facing API to not expose the previous hack.
Change-Id: I1dd6cd83679a2b7457ad628169e2851acc027143
mDrawingState doesn't need to be accessed by the
mStateLock, because by definition it's only accessed
from the main thread.
Similarily, the list of layers in the drawing state
cannot change (ie: is const).
Change-Id: I2e5da7f4d8caee7af7802b432cd45cc81c7c08b0
This change adds a new 'method' to the ANativeWindow interface to check
whether buffers queued to the window will be sent directly to the system
window compositor.
Change-Id: I4d4b199e328c110b68b250029aea650f03c8724d
Bug: 3495535
now that we removed the notion of a "inUse" buffer in surfaceflinger
a lot of code can be simplified / removed.
noteworthy, the whole concept of "unlockClient" wrt. "compositionComplete"
is also gone.
Change-Id: I210413d4c8c0998dae05c8620ebfc895d3e6233d
We used to guarantee that a layer in SurfaceFlinger would never be
destroyed before all references (to its ISurface) on the client
side would be released. At some point, this guarantee got
relaxed to allow to free gralloc resources sooner. This last
change was incorrect, because:
- in implementations with reference-counting the gralloc resources
wouldn't be released anyways, until all the mapping were gone
- in implementations without ref counting, the client side
would most likely crash or do something bad
- it also caused the SharedBufferStack slot to be reallocated
to another surface, which could be problematic if the client
continued to use the surface after the window manager destroyed it.
So, we essentially reinstate the guarantee that layers won't be
destroyed until after all references to their ISurface are
released.
NOTE: This doesn't entirely fix 3306150 because there is another
problem there where the Browser continues to use a surface after it
has been destroyed.
Change-Id: I305c830dd722b30a6d53cbf3a9c714fd3cf7eb06
the crop as well as buffer orientation can change at every frame, when that happens
we need to reset the hwc HAL (ie: set the GEOMETRY_CHANGED flag).
currently we achieve this by taking the same code path than an actual geometry change
which is a bit more heavy than necessary.
Change-Id: I751f9ed1eeec0c27db7df2e77d5d17c6bcc17a24
This change fixes a horrible hack that I did to allow application
processes to create GraphicBuffer objects by making a binder call to
SurfaceFlinger. This change introduces a new binder interface
specifically for doing this, and does it in such a way that
SurfaceFlinger will maintain a reference to the buffers until the app is
done with them.
Change-Id: Icb240397c6c206d7f69124c1497a829f051cb49b
This change adds a new binder method to the ISurfaceComposer interface.
This IPC is intended to allow SurfaceFlinger clients to allocate gralloc
buffers using SurfaceFlinger as a proxy to gralloc.
Change-Id: Ide9fc283aec5da6268ba62cfed0c3319a50b640d
For multiple reason, this effect is not maintainable and was never
used due to its abysmal performance. it'll be resurected when it can be
implemented efficiently.
Change-Id: Id4222c9b86c629275cdec18873ef07be8723b6d2
