KeyframeEffectReadOnly uses IsFinishedTransition to exclude finished transitions
from certain tests. This check, however, is redundant in each case.
This is because any effect marked as IsFinishedTransition will have the
following properties:
- owning animation's PlayState() == Finished or Idle
- animation phase = after or null
- progress = null (this is because transitions don't fill forwards)
Animation::ComposeStyle uses IsFinishedTransition to skip doing work for
transitions that have run their course. We can, however, generalize this to
cover all animations that are not currently contributing to the animated
style--that is animations that are not "in effect".
We need to add this check *after* we update aNeedsRefreshes since an animation
that is not "in effect" because it has a delay and no backwards fill (in this
case it will have a play state of "running") still needs refreshes.
Previously we used IsFinishedTransition so that if the only animations present
are finished transitions we could throttle the tick. In fact, this probably
shouldn't even be necessary since we shouldn't be calling CanThrottle if
AnimationCollection::mNeedsRefreshes is false. However, so long as we're
performing this test it turns out we can generalize this further and throttle
ticks for all finished animations that are not newly finished, regardless of
whether they are running on the compositor or not (although this method won't
be called unless the animation property could be run on the compositor anyway).
This method is somewhat confusing. For one, it is not strictly limited to
animations that are running on the compositor. It appears to only return true
when the animation is running on the compositor but the mIsRunningOnCompositor
flag doesn't get cleared when the animation finishes (bug 1151694). As a result
this method also deals with animations that are now running on the main thread.
This patch makes us deal with such animations more consistently.
This patch also reworks this method so that it's hopefully a little easier to
follow and a little more consistent since I spent several hours trying to
understand the different combinations of inputs this method could take and what
question it was trying to answer.
This bug happens becuase when toggleMuteAudio() is called from the click
handler for the tab, we remove the muted attribute during unmuting,
which makes the element display:none. Therefore, when the mouse pointer
leaves that region, there is no element to receive the mouseout event
and as a result, the _overPlayingIcon variable stays true, which means
we stop tab switching in the mousedown handler.
This information is often wrong and non-existent with MSE. Let the PDM decides later based on the metadata.
This prevent hardware acceleration to be turned on leading to extremely high CPU usage on high definition videos.
qcms and libav use __attribute__((force_align_arg_pointer))
unconditionally; the libav use case suggests that the attribute has been
around since GCC 4.2. We're well past that point with GCC, and clang
supports it also. So we can simply assume the compiler has it in the
appropriate places.
It is, however, x86 only (x86-64 appropriately aligns the stack at all
times), so we need to adjust the libpixman build code appropriately.
Brian Birtles
Nicholas Nethercote
Ehsan Akhgari
JW Wang
Jean-Yves Avenard
Wes Kocher
Ben Kelly
Nathan Froyd
David Anderson
Nick Thomas
Brian Grinstead
B2G Bumper Bot
Ryan VanderMeulen
Kit Cambridge
Jonathan Kew
Kyle Machulis
Fabrice Desré
Sotaro Ikeda
Tim Taubert