we can now queue/dequeue a buffer in asynchrnous mode by using the
async parameter to these calls. async mode is only specified
with those calls (it is not modal anymore).
as a consequence it can only be specified when the buffer count
is not overidden, as error is returned otherwise.
Change-Id: Ic63f4f96f671cb9d65c4cecbcc192615e09a8b6b
we tag queued buffers with the "bufferqueue cannot block" flag
and use that bit to discard a buffer in the queue by new ones
comming in. this allows us to remove the buffer queue drain in
disconnect while maintaining the right behaviour if it gets
connected again (since each buffer remembers how it was enqueued).
Change-Id: I1e703d363a687b70b19ba49cef32213116e8bd3f
this is the first step of a series of improvements to
BufferQueue. A few things happen in this change:
- setSynchronousMode() goes away as well as the SynchronousModeAllowed flag
- BufferQueue now defaults to (what used to be) synchronous mode
- a new "controlled by app" flag is passed when creating consumers and producers
those flags are used to put the BufferQueue in a mode where it
will never block if both flags are set. This is achieved by:
- returning an error from dequeueBuffer() if it would block
- making sure a buffer is always available by replacing
the previous buffer with the new one in queueBuffer()
(note: this is similar to what asynchrnous mode used to be)
Note: in this change EGL's swap-interval 0 is broken; this will be
fixed in another change.
Change-Id: I691f9507d6e2e158287e3039f2a79a4d4434211d
When acquiring a buffer, SurfaceFlinger now computes the expected
presentation time and passes it to the BufferQueue acquireBuffer()
method. If it's not yet time to display the buffer, acquireBuffer()
returns PRESENT_LATER instead of a buffer.
The current implementation of the expected-present-time computation
uses approximations and guesswork.
Bug 7900302
Change-Id: If9345611c5983a11a811935aaf27d6388a5036f1
Now that we are having separate buffer-instances for the buffer-
queue, we can free all buffers; we don't have to keep the head
alive.
Change-Id: I023e9161a2501d99333f8868ce438afa914ec50f
Signed-off-by: Lajos Molnar <lajos@google.com>
Related-to-bug: 7093648
Instead of representing the buffer-queue as a vector of buffer
indices, represent them as a vector of BufferItems (copies).
This allows modifying the buffer slots independent of the queued
buffers.
As part of this change, BufferSlot properties that are only
been relevant in the buffer-queue have been removed.
Also, invalid scalingMode in queueBuffer now returns an error.
ConsumerBase has also changed to allow reuse of the same
buffer slots by different buffers.
Change-Id: If2a698fa142b67c69ad41b8eaca6e127eb3ef75b
Signed-off-by: Lajos Molnar <lajos@google.com>
Related-to-bug: 7093648
- Add fields to CpuConsumer::LockedBuffer for new information
- New lock methods for GraphicBuffer and GraphicBufferMapper for
the format
Bug: 8734880
Change-Id: If31f82c62d64b6942cf4cc6e5715585c03273f12
mDefaultWidth, mDefaultHeight and mCurrentScallingMode are now
initialized to the same default value that BufferQueue uses.
Change-Id: I0d4da2022b06419d12745716d8ddbd48c8869953
This moves the call to ConsumerBase::abandon from the ConsumerBase dtor to
ConsumerBase::onLastStrongRef. The abandon call relies on virtual methods to
perform the clean-up, so calling it from the ConsumerBase dtor after the
derived classes dtors ran was skipping some of the clean-up. The
onLastStrongRef method should get called just before the most derived class's
dtor gets called.
Bug: 8349135
Change-Id: I836946826927cc1ed69c049049f525f92b17a269
We now detect at runtime which sync features to use, which
allows us to remove a lot of the compile-time configuration
options. There is still one option though, to disable
KHR_fence_sync on some devices (which are more efficient
without it).
- added a backdoor to get the vendor's EGL strings
the new logic is:
- use always ANDROID_native_fence_sync if available
- fallback to KHR_fence_sync if available and not disabled
by the compile-time option
- use KHR_wait_sync if available and either of the above is
enabled
Change-Id: I9c4b49d9ff1151faf902cc93bd53ea5f205aaabf
We're not using IMemoryHeap as a transport anymore,
instead we're providing a CpuConsumer and use the
IGraphicBufferProducer version of the screenshot API.
However, some GPU drivers don't support properly
a GPU to CPU path, to work around this, we use a
temporary BufferQueue on the server side for the
GL rendering, and we use glReadPixels into the
CpuConsumer (we're now using a CPU to CPU path
which is always supported).
Currently this "wrapping" is always performed,
but it can be bypassed on devices that support
the GPU to CPU path.
This also addresses a DoS attack vector on
SurfaceFlinger, where an application could
consume all of SF's filedescriptors by creating
a lot of screenshots in a row.
Bug: 8390553
Change-Id: I9e81514c2a7711b9bb393f74305be7d2abe08f1c
* changes:
Add BufferQueueInterposer and use it for virtual displays
Add DisplaySurface abstraction
Fix argument types in IGraphicBufferProducer methods
Minor cleanups/fixes before virtual display refactoring
None of these should change behavior, except for removing some
incorrect log messages when using a virtual display.
- HWComposer::getAndResetReleaseFenceFd() checks the HWC version, so
no need to do that in the DisplayDevice::onSwapBuffersCompleted().
However, it should check that mFramebufferSurface is not NULL like
it is for virtual displays.
- Comment that FramebufferSurface::dump() overrides the non-virtual
ConsumerBase::dump(), and fix it so the right thing happens
regardless of the static type of the pointer/reference the callee
has. FramebufferSurface::dump() could be removed right now, but I'd
need to bring it back in a later change.
- Use the right enum for validating display type ids.
- Don't try to send hotplug events for virtual displays.
- Mark virtual displays as connected so HWComposer::prepare() doesn't
think something is wrong when it gets a non-NULL layer list.
- Remove unused FramebufferSurface methods.
Bug: 8384764
Change-Id: Id28a2f9be86b45f4bb7915fdf7752157035f4294
the recent screenshot rework allowed the older screenshot
interface to work without that permission
Change-Id: I6c4743f4591c81106e3b823d55a055f7b4907de1
ISurface was only used to get the IGraphicBufferProducer from
a Layer. It's now replaced by a BBinder subclass / IBinder and
is only used as a handle to the surface, to both refer to it
and manage its life-time.
Also cleaned-up a bit the ISurfaceComposer interface and
"create layer" code path.
Change-Id: I68d0e02d57b862cffb31d5168c3bc10cea0906eb
CpuConsumer cannot simply assume a slot's buffer is the same buffer
between acquire and release, and therefore it could be possible for
the same slot to get used for a second acquired buffer, if there's a
producer disconnect in between. This would cause a problem when the
first buffer is released by the consumer.
Instead, use an independent list of acquired buffers to properly track
their state.
Bug: 8291751
Change-Id: I0241ad8704e53d47318c7179b13daed8181b1fab
- SurfaceFlinger now supports to take a screenshot
directly into an IGraphicBufferProducer
- reimplement the IMemoryHeap screenshot on top
of the above
- reimplement LayerScreenshot such that its
BufferQueue is directly used as the destination
of the screenshot. LayerScreenshot is now a thin
wrapper around Layer
Bug: 6940974
Change-Id: I69a2096b44b91acbb99eba16f83a9c78d94e0d10
Temporary, to fix weekend build, until we get Nvidia code drop.
This reverts commit 9a867a8798
DO NOT MERGE
Change-Id: I7b5dbc4db46ef3d97dc8598057d5487d6971178b
The C++ class names don't match what the classes do, so rename
ISurfaceTexture to IGraphicBufferProducer, and SurfaceTexture to
GLConsumer.
Bug 7736700
Change-Id: Ia03e468888025b5cae3c0ee1995434515dbea387
Added a quick intro section at the top of the class. Also noted
the proposed new name for the class.
Change-Id: I3f79663527544aa4e910db0e5a1374b54d16ba2f
Mathias Agopian