1682398 - Bloomberg vaccine tracker runs very poorly on mac

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect, P1)

Description

[Jeff Muizelaar [:jrmuizel]]

https://www.bloomberg.com/graphics/covid-vaccine-tracker-global-distribution/ in the "Shots Across the Globe" graphic

https://share.firefox.dev/37k4Ku4

Comment 1

[Jeff Muizelaar [:jrmuizel]]

It looks like this is caused by us aggressively splitting the svg (perhaps because of mixed-blend-mode or some other reason)

Comment 2

[Jamie Nicol [:jnicol]]

FWIW it's a bit laggy but not horrendous on my Linux/nVidia desktop. Because of lower res screen (2560x1440) perhaps, if it's due to large SVGs.

Comment 3

[Jeff Muizelaar [:jrmuizel]]

Attachment: Standalone test case

Comment 4

[Jeff Muizelaar [:jrmuizel]]

Attachment: Bug 1682398. Be more conservative about promoting mixed-blend-mode to active.

Previously, if a mixed-blend-mode item was the child of the root svg
element it would always end up active. Instead of using parent
activeness as a proxy, track previous sibling activeness. This
doesn't make things too much more complicated and is more accurate.

Unfortunately, if a previous silbing is actually active we can get
still get into a bad situation.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/f88facb3f690
Be more conservative about promoting mixed-blend-mode to active. r=mstange

Comment 6

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/mozilla-central/rev/f88facb3f690