1436772 - Contents of transformed element are mispositioned during transform transition

Status: RESOLVED DUPLICATE of bug 1435143

(Core :: Graphics: WebRender, defect)

Description

[Kartikaya Gupta (email:[e-mail])]

Attachment: Reduced test case

This is occuring on the Hamilton Public Library's website but to get to the page you have to be logged in. I've made a reduced (but maybe not minimal) version of the page, it is attached.

STR:
- Load attached test case, click on the button

Actual:
- As the "modal dialog" animates in, the body area (inside the red border) is mispositioned off to the left

Expected:
- The body area remains between the header and the footer and animates in sync with everything else

I think this might be a regression, I don't remember seeing it a while ago when I was using the same website.

Comment 1

[Kartikaya Gupta (email:[e-mail])]

Attachment: Reduced test case

Slight update to the test case to make sure it still reproduces on really tall screens

Comment 2

[Darkspirit]

Debian Testing (KDE, Radeon RX480, Dell UltraSharp U2515H)

mozregression --good 2018-01-12 --bad 2018-02-07 --pref gfx.webrender.all:true startup.homepage_welcome_url:"https://bugzilla.mozilla.org/attachment.cgi?id=8949437"
> 8:01.90 INFO: Last good revision: c9c4506e63009d9a5f4da3ef6d5e88fa529b4f75
> 8:01.90 INFO: First bad revision: 3940b5d8f13529b17acfba25fa8e1d1d179628d0
> 8:01.90 INFO: Pushlog:
> https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=c9c4506e63009d9a5f4da3ef6d5e88fa529b4f75&tochange=3940b5d8f13529b17acfba25fa8e1d1d179628d0

> 3940b5d8f135	Martin Roinson — Bug 1434288 - Update gecko for API changes in WR PR 2315. r=kats
> e99f6587c86e	Kartikaya Gupta — Bug 1434288 - Update webrender to commit e772c3cb8ea0a35e6477e9dc8dd2144e2de87b56. r=jrmuizel

-----

> WR @ 87c6a6ba7e75d8ed0b2ddeeb5fa4e363482f7f86
> https://treeherder.mozilla.org/#/jobs?repo=try&revision=7801945b00e7eac75e8bdf9d64869a9c284599de
mozregression --repo try --launch 7801945b00e7eac75e8bdf9d64869a9c284599de --pref gfx.webrender.all:true startup.homepage_welcome_url:"https://bugzilla.mozilla.org/attachment.cgi?id=8949437|https://bugzilla.mozilla.org/attachment.cgi?id=8949434"
-> both good

> WR @ e772c3cb8ea0a35e6477e9dc8dd2144e2de87b56, with the fixes
> https://treeherder.mozilla.org/#/jobs?repo=try&revision=62ab4844535a8ae2194ee6b7e43c1f9f05bb1511
mozregression --repo try --launch 62ab4844535a8ae2194ee6b7e43c1f9f05bb1511 --pref gfx.webrender.all:true startup.homepage_welcome_url:"https://bugzilla.mozilla.org/attachment.cgi?id=8949437|https://bugzilla.mozilla.org/attachment.cgi?id=8949434"
-> both bad

-----

try build from bug 1435143 comment 7:

mozregression --repo try --launch b7745f7eb6cfa1dbdca73b77e96625e0e1d013e3 --pref gfx.webrender.all:true startup.homepage_welcome_url:"https://bugzilla.mozilla.org/attachment.cgi?id=8949437|https://bugzilla.mozilla.org/attachment.cgi?id=8949434"
-> both good

mozregression --launch 2018-02-07 --pref gfx.webrender.all:true startup.homepage_welcome_url:"https://bugzilla.mozilla.org/attachment.cgi?id=8949437|https://bugzilla.mozilla.org/attachment.cgi?id=8949434"
-> both bad

Comment 3

[Kartikaya Gupta (email:[e-mail])]

Thanks! I totally didn't realize the latest nightly doesn't have that fix...

Comment 4

[Darkspirit]

I didn't get fresh Nightlies tonight and at noon today. I am still waiting and am on 20180207100355.
https://hg.mozilla.org/mozilla-central/rev/d3dbee5cf682
> first release with: nightly win32/64