CSS "repeating-linear-gradient" unstable/imprecise during resizing

UNCONFIRMED
Unassigned
(NeedInfo from)

Status

()

Core
Graphics
P3
normal
UNCONFIRMED
2 years ago
9 months ago

People

(Reporter: Tobi Reif, Unassigned, NeedInfo)

Tracking

(Blocks: 1 bug, {regression})

29 Branch
regression
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [gfx-noted])

Attachments

(2 attachments)

(Reporter)

Description

2 years ago
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Firefox/45.0
Build ID: 20160407164938

Steps to reproduce:

Load
http://codepen.io/TobiReif/pen/PNRNYy





Actual results:

The pattern generated using CSS's "repeating-linear-gradient" is unstable/imprecise during resizing (when I move e.g. the right edge of the browser window).

(Probably best to try to reproduce it on a non-high-res screen.)

Related info:
In Chrome, the pattern is completely stable during resize.



Expected results:

The pattern should remain stable/unchanged during resizing.

Comment 1

2 years ago
I don't see the unstable/imprecise during resizing in Fx46b10 & 48.0a1 (2016-04-12) on Win10, instead it has an adjustment lag in Chrome.

Updated

2 years ago
Component: Untriaged → Graphics
Product: Firefox → Core

Comment 2

2 years ago
Created attachment 8741763 [details]
1264597.html

Comment 3

2 years ago
Could you attach a screencast of the issue? I can't reproduce it.
(Reporter)

Comment 4

2 years ago
Created attachment 8742283 [details]
screen_video_firefox_mac_os_x.mov
(Reporter)

Comment 5

2 years ago
I hope that you can see the issue in the screen video "screen_video_firefox_mac_os_x.mov", and that you can reproduce it (on eg the latest Mac OS X).

Comment 6

2 years ago
I'm able to reproduce the issue with HWA disabled on Win 7. With HWA enabled, it's fine.

Regression range:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=73eefb421e2a&tochange=735a648bca0d

It's probably due to bug 700926.
Blocks: 700926
Flags: needinfo?(ncameron)
Keywords: regression
Version: 45 Branch → 29 Branch
(Reporter)

Comment 7

2 years ago
Thanks Loic!
(Reporter)

Comment 8

2 years ago
I hope this can be fixed.
Priority: -- → P3
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