This function doesn't use any StackingContextHelper state anymore.
We should make what it does clearer and move it to a better place.
--HG--
extra : rebase_source : 1727be9657169547d842ec9b6887837abedbefdf
In SourceSurfaceImage::GetTextureClient, we use LookupForAdd. This is
because we typically will create a new TextureClient if there isn't
already one created. This creation can fail because the size is too big,
or we don't have the memory available for it. Unfortunately LookupForAdd
is an infallible operation; it is expected we will always add something
to the hashtable if we don't find an entry. This patch adds an OrRemove
method to cover the corner case where we are unable to complete the
insertion.
The APZUpdater class holds the methods that are to be run on the updater
thread. Note that there are a few differences between the APZSampler and
APZUpdater classes - most notably, APZSampler no longer has a
"RunOnSamplerThread" function because there should never be any need to
dispatch runnables to the sampler thread. There is still a
RunOnUpdaterThread in APZUpdater, as well as a mechanism for dispatching
runnables to the controller thread via the updater thread.
MozReview-Commit-ID: LLVWzRyhYWl
--HG--
extra : rebase_source : d3d2ae18b40f24473cab5567a48b67b8f478a733
Functions in APZSampler that are only invoked without WR (e.g. from
AsyncCompositionManager only) can be asserted as running on the sampler
thread. Functions that are invoked with WR need to be bounced onto the
sampler thread. In all cases the functions are called from the
compositor thread, and so we assert that as well.
MozReview-Commit-ID: JPgGlgUUsgg
--HG--
extra : rebase_source : 8b950d3386e1e64e766b76edaa7894b251fb8664
The methods on PAPZCTreeManagerParent are always invoked on the
compositor thread, which currently is always the same as the sampler
thread. When it does RunOnControllerThread calls, there is an implicit
ordering with respect to the sampler thread, because the controller
thread messages are always dispatched *from* the sampler thread.
When we move the sampler thread to be the render backend thread, we have
to preseve this implicit ordering, but we have to make it more explicit.
For example, if a content process sends a layers update followed by
a SetTargetAPZC message, it expects that the APZ will process them in
that order, as the SetTargetAPZC might refer to a scrollframe that was
just layerized. Currently, both these messages arrive on the compositor
thread; the layers update is processed directly as the compositor thread
is the sampler thread, and then the SetTargetAPZC message is bounced to
the controller thread. However, if the compositor thread is not the
sampler thread, then we would bounce the layers update to the sampler
thread, and bounce the SetTargetAPZC to the controller thread,
introducing a race. If SetTargetAPZC runs first bad things happen. The
solution in this patch is to bounce the SetTargetAPZC to the sampler
thread as well, so that it gets bounced to the controller thread only
after we have processed the layers update.
This patch accomplishes that by introducing a method on APZSampler that
does this "double bounce".
MozReview-Commit-ID: KI9wQQ9PZT4
--HG--
extra : rebase_source : 79d0d36a649f11cc795148cc86539a526c8beeae
This is functionally a no-op (it just moves the thread-bouncing code
from inside APZCTreeManager::SetLongTapEnabled to the call site in
APZCTreeManagerParent. The other call site, in
widget/android/nsWindow.cpp, is already known to be running on the
controller thread (which would be the Java UI thread in that case).
This makes the code in APZCTreeManagerParent more consistent and
simplifies the next changes.
MozReview-Commit-ID: 8VfEDVVFNl8
--HG--
extra : rebase_source : 02225ed5b80129a1d18b429eff93866a33d4ea86
Note that this also makes the utility functions instance methods,
because each APZSampler might have a different sampler thread instance.
MozReview-Commit-ID: 9dY8ZzVX6lR
--HG--
extra : rebase_source : 4dd58400aee5d9f2063abe0a912488b28ff74f9f
NullPrincipal::Create() (will null OA) may cause an OriginAttributes bypass.
We change Create() so OriginAttributes is no longer optional, and rename
Create() with no arguments to make it more explicit about what the caller is doing.
MozReview-Commit-ID: 7DQGlgh1tgJ
Due to an oversight in bug 1423370, the code I added was setting the
transform on a WebRenderLayerScrollData after initializing it, but the
initialization might have populated the transform. Thus the
transform-set that I added would have clobbered the transform. This
updates the code to combine the two transforms instead which avoids
the clobber.
MozReview-Commit-ID: 4mKJTLSMD9J
--HG--
extra : rebase_source : c486c5866739ab040d81f9f9a43b2b8a04c2d383
Instead of creating a new layer scroll data for every single
nsDisplayTransform item, we only create a new layer scroll data for
nsDisplayTransform items with perspective. In addition, we save the
transform from the non-perspective nsDisplayTransform items on the
StackingContextHelper, and then apply it to layer scroll data items that
are created by display items nested inside those nsDisplayTransforms.
This effectively makes two changes to the structure of the layer scroll
data sent to APZ:
(1) we will drop layer scroll data items for transforms that APZ doesn't
care about (i.e. the non-perspective ones that don't wrap APZ-relevant
display items).
(2) we will collapse layer scroll data items that only had a transform
into its descendant layer scroll data items. This should be functionally
equivalent, since the transform is still in the right place relative to
everything else.
The net result is fewer layer scroll data items.
MozReview-Commit-ID: HV6QPfuUrje
--HG--
extra : rebase_source : ecfe1810f9889e7ce5096e1bc42cc30a92b43b4a
Apparently applying it on an individual function inside the extern "C"
block doesn't work so we have to apply it to the whole block. But that's
better than applying it to the whole crate.
MozReview-Commit-ID: GUMliaZragl
--HG--
extra : rebase_source : d12ac26aea76bc7c4487e80e6066a016871d1d20
Instead of hard-cording the root scroll frame id, get the value from
WebRender. This was previously hard-coded to 0, so when WebRender
switched to using 1 for the root scroll frame id, the positioning of
sticky frames were broken in subtle ways. This happened because they
were being parented to a root reference frame (which now uses the 0 id)
instead of the root scroll frame.
MozReview-Commit-ID: 66ArgKHGpWE
--HG--
extra : rebase_source : ff6937bf7fc8d4472eb074d0466c8dcd6fba54a8
Botond Ballo
Jeff Muizelaar
shindli
Ciure Andrei
Jonathan Kew
Dorel Luca
Gurzau Raul
Andrew Osmond
Ryan Hunt
David Major
Nicolas Silva
Kartikaya Gupta
Andi-Bogdan Postelnicu
sotaro
Tom Ritter
Markus Stange
Xidorn Quan
Lee Salzman
Margareta Eliza Balazs
Jeff Gilbert
Nathan Froyd
Martin Robinson