Closed Bug 1255641 Opened 8 years ago Closed 8 years ago

Specific styling makes images pixelated on mouseover/mouseout for ~0.5s (https://www.pinterest.com)

Categories

(Core :: Graphics: Layers, defect)

45 Branch
defect
Not set
normal

Tracking

()

RESOLVED DUPLICATE of bug 1183378
Tracking Status
platform-rel --- ?
firefox45 --- wontfix
firefox46 + wontfix
firefox47 + wontfix
firefox48 + wontfix
firefox49 --- wontfix
firefox-esr38 --- unaffected
firefox-esr45 --- wontfix
firefox50 --- wontfix
firefox51 --- wontfix
firefox52 --- wontfix
firefox53 --- fix-optional

People

(Reporter: arni2033, Unassigned)

References

Details

(Keywords: regression, Whiteboard: gfx-noted [platform-rel-Pinterest])

Attachments

(1 file)

>>>   My Info:   Win7_64, Nightly 48, 32bit, ID 20160310030242
STR:
1. Open https://www.pinterest.com/pin/26458716535727317/
2. Hover mouse over image "Sleep" at the top
3. Move mouse away from that image
4. Hover mouse over image "Illustrations" at the top
5. Move mouse away from that image

AR:  Images become pixelated at Steps 2-5.
ER:  Images shouldn't become pixelated.

This was regresseion between 2015-12-03 and 2015-12-04. Yep. ESR 45 is affected
Regression range (NI: I have no idea which bug broke this):
> https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=a8b4b4cdab7b9080bee35793078110ae7abfc3d2&tochange=0495c1a481af957371269cb73cd335ba6b08cf66
Flags: needinfo?(mstange)
Attached file index.html (reduced testcase) (deleted) —
The culprit is clearly bug 927228. If you comment "background-size: cover", it works fine.
No longer blocks: 1200611
Status: UNCONFIRMED → NEW
Ever confirmed: true
Version: Trunk → 45 Branch
I'm almost certain this would be fixed by bug 1183378. The problem is that we can't display the high-quality downscaled version of an image if it's layerized right now.
Depends on: 1183378
Flags: needinfo?(mstange)
Regression in 45, tracking. But wontfix for 46. 
Seth, would you agree it is too late in beta (coming into beta 6, now) to fix this in 46?
Assignee: nobody → seth
Arni, can you please confirm this also affects Firefox Nightly 49?
>>>   My Info:   Win7_64, Nightly 49, 32bit, ID 20160429030215
Yes.
Flags: needinfo?(arni2033)
Hi Milan, what about this one? I don't think this should block the release. Any chance of this getting fixed in Fx47?
Flags: needinfo?(milan)
(In reply to Ritu Kothari (:ritu) from comment #6)
> Hi Milan, what about this one? I don't think this should block the release.
> Any chance of this getting fixed in Fx47?

I'll find out about the chance for 47, but this is transient enough that I wouldn't block the release for it (sadly :)
Flags: needinfo?(milan)
Thanks Milan. This is now a wontfix for Fx47, if a patch is ready next week and deemed low risk, I would be willing to reconsider for Fx47.
We already shipped several releases with this regression, let's remove it from our radar.
Switching need-info to Milan since I don't believe Seth is working on this anymore.
Assignee: seth.bugzilla → nobody
Flags: needinfo?(seth.bugzilla) → needinfo?(milan)
I'll track this with bug 1183378.
Flags: needinfo?(milan)
platform-rel: --- → ?
Whiteboard: gfx-noted → gfx-noted [platform-rel-Pinterest]
(In reply to Milan Sreckovic [:milan] from comment #11)
> I'll track this with bug 1183378.

Should this just be duped to that?
Flags: needinfo?(milan)
Good idea.
Status: NEW → RESOLVED
Closed: 8 years ago
Flags: needinfo?(milan)
Resolution: --- → DUPLICATE
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