Since the display list is already sorted before it is passed to
WebRender, we don't need to pass the stacking level information any
longer. Update webrender, webrender_traits, and gleam.
Source-Repo: https://github.com/servo/servo
Source-Revision: 062d933e4fb4a58d9dc319ec2b462f3c1d504d8a
Improves YouTube.
Improves the Washington Post.
Closes#10526.
r? @glennw
Source-Repo: https://github.com/servo/servo
Source-Revision: 150338503dce8f2ba7f2a6850dca253733a636a1
Now that WebRender uses an Iframe display item, we do not need the Noop
item for the non-WebRender path. We can simply reuse the Iframe display
item. Also remove the layer_id member from the LayeredItem struct, as
it is unused.
Source-Repo: https://github.com/servo/servo
Source-Revision: 40083a7aa84c2459f2f1de7dd826d39f80e2195f
Instead of producing a tree of stacking contexts, display list
generation now produces a flat list of display items and a tree of
stacking contexts. This will eventually allow display list construction
to produce and modify WebRender vertex buffers directly, removing the
overhead of display list conversion. This change also moves
layerization of the display list to the paint thread, since it isn't
currently useful for WebRender.
To accomplish this, display list generation now takes three passes of
the flow tree:
1. Calculation of absolute positions.
2. Collection of a tree of stacking contexts.
3. Creation of a list of display items.
After collection of display items, they are sorted based upon the index
of their parent stacking contexts and their position in CSS 2.1
Appendeix E stacking order.
This is a big change, but it actually simplifies display list generation.
Source-Repo: https://github.com/servo/servo
Source-Revision: 62814f7cb486bc267a796b7ce58c51d59240fad0
WebRender is an experimental GPU accelerated rendering backend for Servo.
The WebRender backend can be specified by running Servo with the -w option (otherwise the default rendering backend will be used).
WebRender has many bugs, and missing features - but it is usable to browse most websites - please report any WebRender specific rendering bugs you encounter!
Source-Repo: https://github.com/servo/servo
Source-Revision: ab07b06823ea9748a6091aee2281495f86f00bce
