In order to make test behavior better match real-world sampling behavior, this
patch updates the test code in CompositorParent so that it only updates the
layer when a composite is scheduled. This enables creating mochitests that
reproduce bugs observed in regular usage.
PLayerTransaction.GetTransform doesn't actually return the same kind of value
when the transform on the layer is not set by animation. This is because it uses
information stored with the animation to undo various transforms. We shouldn't
pretend to return something useful/similar when we don't have that information
available.
This patch renames GetTransform to GetAnimationTransform and makes it return
a union that has type void_t if the layer is not transformed by animation.
LayerTransactionParent::RecvGetTransform takes care to reverse all the
transformations applied by AsyncCompositionManager::SampleValue to the CSS
values calculated so that it can return CSS values for testing. However, it
fails to revert the conversion from CSS pixels to device pixels applied to the
translation components of the transform by
nsStyleTransformMatrix::ProcessTranslatePart as called by
nsDisplayTransform::GetResultingTransformMatrix.
This patch converts the resulting transform's translation components from device
pixels back to CSS pixels. It also adds documentation for the other operations
in LayerTransactionParent::RecvGetTransform.
http://hg.mozilla.org/users/bschouten_mozilla.com/tiling/summary
This work is mainly porting tiled layers to new textures, implementing
double-buffered tiles and implementing a texture client pool, to be used by
tiled content clients.
Any questions regarding this patch should go to:
Bas Schouten <bschouten@mozilla.com>
Chris Lord <clord@mozilla.com>
Nicolas Silva <nsilva@mozilla.com>
In their absence questions can be directed to:
Jeff Muizelaar <jmuizelaar@mozilla.com>
Benoit Girard <bgirard@mozilla.com>
If a generated displayport expands beyond the scrollable rect on one axis,
redistribute that extra area to the other axis. Enabled by pref
apz.enlarge_displayport_when_clipped.
When restoring the refresh driver after testing we can arrive at a situation
where a layer has an animation that has yet to start. However, calling
ElementAnimations::GetPositionInIteration with a negative value from the
compositor thread is an error.
This patch detects animations on the compositor thread that are yet-to-start and
skips them when sampling. It also moves the activeAnimations = true line up as
otherwise we would need special logic to wake up the compositor after the delay
has finished.
Create a new GetEffectiveOperator function that also takes into acount the mix-blend-mode operator for basic layers. Replace logic that chooses between the effective mix blend mode and the operator returned by GetOperator, with calls to this function.
