This commit exposes a method on DrawTargetCapture to see if it has
captured any drawing commands. This allows us to not dispatch
paint tasks if they will do nothing.
Ideally these tasks would execute instantly on the PaintThread, and
we would never delay sending the layer transaction or block on the
next paint, but with thread starvation and context switches it's
best to just not send them.
MozReview-Commit-ID: 7ywkEDBw6EX
--HG--
extra : rebase_source : c8f628180a3d908c8851e5c576296f903b9b255d
This commit adds the ability to create a different kind of DrawTargetCapture which
has a limit on the size of which its CaptureCommandList can grow before it is
synchronously flushed to its destination DrawTarget.
Special care is taken to not do a sync flush until we would need to resize
the backing store of the CaptureCommandList. This allows us to not waste
memory we've already allocated.
The async painting content clients are updated to use it, and get a default
value from a new preference.
MozReview-Commit-ID: CJL7ffvaRzR
--HG--
extra : rebase_source : 546d9838808320c51d9ceef0ed0ffcbb88a16269
This commit moves ContentClient from creating a CapturedBufferState for
buffer operations, to performing all of those operations on the
DrawTarget(Capture). Creating a DrawTargetCapture is now performed
by the RotatedBuffer when we BeginPaint, all operations are performed
on this capture, and then it's returned to the ClientPaintedLayer
as a PaintTask.
This commit is an involved refactoring of ContentClient and RotatedBuffer
to get this all to work. Here are the major parts:
1. RotatedBuffer is refactored to always perform operations on a single
DrawTarget, which may be a single DT, dual DT, or capture.
2. RotatedBuffer adds BeginCapture and EndCapture methods to switch
which DT is used in operations
3. ContentClient uses the RB capture methods when we are async painting
4. CC::BeginPaint is refactored to only perform capturing on a single
RotatedBuffer. This is because we can't have the output of one
PaintTask be the input of a different PaintTask due to the design
of the Snapshot API.
a. This can occur, today, by doing a FinalizeFrame only to later
fail to Unrotate the buffer, causing a new RB to be created
and painted into
b. The previous PaintThread code worked because it used the
buffer operations which didn't use Snapshot's
c. This is fixed by not doing FinalizeFrame on a buffer if we
realize we cannot unrotate it, and switching to initializing
a buffer using the front buffer which should be up to date.
d. I don't like touching this code, but it passes reftests,
might be a performance improvement, and I've tested it on
known regressions from the last time I messed up this code.
5. CC::PrepareForPaint is inlined into BeginPaint because dual draw
targets can be cleared correctly from a previous commit
6. The code paths in ClientPaintedLayer are unified because we no
longer need to special case this beyond setting the correct
ContentClient flag.
7. CapturedPaintState and CapturedBufferState are removed in favor
of PaintTask. Additionally EndLayer is no longer needed as all
quadrants of a rotated buffer are in the same capture, so we
don't need special case flushing code.
MozReview-Commit-ID: 9UI40dwran
--HG--
extra : rebase_source : 2f63464c1f8ca03992700b33838c4aa56608f872
This commit adds a buffer unrotate operation to DrawTarget. It's
initially implemented with LockBits in DrawTarget. DrawTargetDual
overrides the implementation to pass on the operation to it's
DrawTargets.
No override is given for DrawTargetCapture as we intentionally
avoid this code path when async painting as it can fail.
This is needed so that RotatedBuffer can expose a single DrawTarget,
which can be a DrawTarget (for normal alpha), DrawTargetDual (for
component alpha), or DrawTargetCapture (when async painting).
MozReview-Commit-ID: csjjZ733hl
--HG--
rename : gfx/layers/BufferUnrotate.cpp => gfx/2d/BufferUnrotate.cpp
rename : gfx/layers/BufferUnrotate.h => gfx/2d/BufferUnrotate.h
extra : rebase_source : efc838a3a4b196f78eda79ff3304c15d386bdc63
This commit adds the ability to create a SourceSurfaceDual directly,
instead of only from a DrawTargetDual. This allows SourceRotatedBuffer
to expose itself as a single SourceSurface for a later commit.
MozReview-Commit-ID: K21K42cGDy1
--HG--
extra : rebase_source : 33a523e45f7102343ebd5b3aa1faf2ff1f3d6f87
This commit renames CapturedTiledPaintState to PaintTask as in a future
commit I will fold CapturedPaintState into it.
MozReview-Commit-ID: 8py7SrK4s29
--HG--
extra : rebase_source : 1b5259cca6520761ae99e64157d047441b90b563
This commit refactors TiledContentClient to not create PaintThread
buffer operations, but to instead perform all of these operations
on the DrawTarget(Capture). This simplifies the code dramatically
and allows us to add flushing behavior to DrawTargetCapture in a
future commit.
With this change, CapturedTiledPaintState is simply a container
for a DrawTarget, DrawTargetCapture, and keep-alive TextureClients.
Part of this commit is moving the logic of locking the texture
clients, constructing a dual draw target, and constructing a capture
into TiledContentClient so it can be shared.
MozReview-Commit-ID: 2rwz9aDI737
--HG--
extra : rebase_source : 16a4b87263f28b32f5bcb5fd6d9756548f137e11
This commit adds a RAII class for the common operation of attempting
to lock one or two TextureClients and then maybe constructing a
DrawTargetDual from them.
MozReview-Commit-ID: ECQkDSgpyuL
--HG--
extra : rebase_source : abad14bfee32ea2fd1626069f8229487d1f05015
This commit changes the behavior of DrawTargetDual::Clear to be aware that
it has on-white and on-black buffers, and perform clearing appropriately.
This is slightly against what the DrawTarget documentation says the method
should do, but it allows us to move another paint thread operation into
DrawTargetCapture and simplify our ContentClient implementations.
I haven't seen any obvious breakage with this, and reftests are green.
An alternative would be to add a separate Clear method with documented
difference here.
MozReview-Commit-ID: 65CzcxlRqv7
--HG--
extra : rebase_source : 47403847e56521be90190eb6b70ec333f6daf5c0
This commit adds an operation to perform 'edge padding' on a draw
target. By default this is performed using LockBits, but it's
overriden in DrawTargetTiled and DrawTargetCapture to propagate
the call so it functions correctly.
This helps TiledContentClient move from applying this operation
on a per texture client basis, to being able to do it on the
DrawTargetTiled after painting. This in turn helps move all
paint thread operations into DrawTargetCapture.
MozReview-Commit-ID: 2ncOTxGXQfk
--HG--
rename : gfx/layers/BufferEdgePad.cpp => gfx/2d/BufferEdgePad.cpp
rename : gfx/layers/BufferEdgePad.h => gfx/2d/BufferEdgePad.h
extra : rebase_source : ab850358a763853d50d1f374f28e67a197740443
The WebVR api was returning a headset pose predicted one additional frame in the
future, but the SteamVR async reprojection was reprojecting it using the
prior (correct) frame's pose.
This resulted in a sickness inducing swimming effect as well as deregistration
from the Vive chaperone bounds.
Differential Revision: https://phabricator.services.mozilla.com/D2693
--HG--
extra : moz-landing-system : lando
On Linux, when synthesizing mousemove events interleaved with button
press/release events, the caller is responsible for waiting for the
mousemove events be dispatched before attempting to synthesize the
press/release buttons, otherwise the events can be delivered by the OS
out of order. This updates a few tests to ensure this is done correctly.
MozReview-Commit-ID: 42HkqTCWToP
--HG--
extra : rebase_source : 57fbc84bcfbed345d8f6d90aaadb3399e691894e
This change also renames several related functions, as well as fields,
and the header is moved into EXPORTS.mozilla given it is defined under
mozilla namespace.
MozReview-Commit-ID: LqCdcW8fmUN
--HG--
rename : layout/base/ScrollbarStyles.cpp => layout/base/ScrollStyles.cpp
rename : layout/base/ScrollbarStyles.h => layout/base/ScrollStyles.h
extra : rebase_source : 8933f3bca88d5db4b9508e3947f695ecf7511b3e
