1530518 - Refactor the way stacking context coords are converted to reference frame coords.

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, enhancement)

Comment 1

[Glenn Watson [:gw]]

Attachment: Bug 1530518 - Refactor the way stacking context coords are converted to reference frame coords.

This doesn't introduce any functional changes. However, it refactors
the way that stacking context coords are converted into reference
frame relative coordinates.

Having a single method to retrieve the current offset will make it
easier to take advantage of the newly added API that allows Gecko
to supply initial scroll offsets for scroll nodes. In turn, this
will allow WR to normalize the local coordinates of primitives, which
will allow future improvements and simplifications to the picture
caching implementation.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/eec82a970303
Refactor the way stacking context coords are converted to reference frame coords. r=emilio

Comment 3

[Stefan Hindli [:stefan_hindli]]

https://hg.mozilla.org/mozilla-central/rev/eec82a970303