Closed Bug 1395982 Opened 4 years ago Closed 4 years ago

All kinds of flickering on Mac

Categories

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

defect

Tracking

()

RESOLVED FIXED
mozilla57
Tracking Status
firefox56 --- unaffected
firefox57 --- unaffected

People

(Reporter: jrmuizel, Assigned: gw)

References

Details

(Whiteboard: [wr-mvp])

This is with todays nightly and layers-free. It seems to be a recent regression.
I'll try to narrow down what broke it.
I can confirm I was seeing this in my local build; I just assumed I had broken something.
I can confirm that this worked before the update to webrender 81cba6b139c4c1061cab6a1c38acf2ae7f50445d
And can confirm that it was that update that caused the flickering.
It seems like https://github.com/servo/webrender/pull/1635 may have just changed the symptoms. https://github.com/servo/webrender/pull/1625 broke shadow rendering for me on Mac.
i.e. this renders without a shadow. (After the a8 change it renders with a solid black shadow)
---
root:
  items:
        - type: stacking-context
          bounds: [0, 0, 600, 600]
          items:
            - type: box-shadow
              bounds: [ 40, 40, 400, 400 ]
              blur-radius: 12
              color: black
Priority: P3 → P2
Whiteboard: [wr-mvp]
Very recent, just re-enabled webrender to check https://bugzilla.mozilla.org/show_bug.cgi?id=1391689 is fixed and noticed this issue. Was not present earlier.
We fixed this in https://github.com/servo/webrender/pull/1666, which has landed on central. 

I don't see it in the very latest nightly.
Status: NEW → RESOLVED
Closed: 4 years ago
Resolution: --- → FIXED
Priority: P2 → P1
Target Milestone: --- → mozilla57
Still happening for me on 57.0a1 (2017-09-09) (64-bit), though not quite as much, but basically whenever the screen updates, such as when scrolling or typing.
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