1569933 - [Photo Wrapping] Parts of the border disappear while the image is twisted

Status: NEW

(Core :: Graphics: CanvasWebGL, defect, P3)

Description

[Oana Botisan, Desktop QA]

Attachment: Peek 2019-07-30 13-44.gif

Affected versions

• Firefox 68.0.1
• Firefox 69.0b9
• Latest Nightly 70.0a1

Affected platforms

• Ubuntu 18.04 x64
• Windows 10 x64

Steps to reproduce

1. Go to https://testdrive-archive.azurewebsites.net/Graphics/Warp/Default.html
2. Use the mouse to twist the image

Expected result

• The border remains intact.

Actual result

• The border disappears in some places.

Regression range

• If this is a regression, it's an old one. I can reproduce the issue on Nightly from 2017-01-02. I will try to find a regression range if there is one.

Additional notes

• [Ubuntu] On Chrome the border is not present. So I am not sure that there should be any border all together.
• [ Windows] The border appears on Chrome, too.
• Please look at the attached gif.

Comment 1

[Bogdan Maris, Desktop QA]

After using mozregression, this is the range I came up with, not sure which bug could have caused this though:

Last good revision: c750a7de1194d71f2d2ef73f6a919d26b9640cae (2016-12-15)
First bad revision: 63b447888a6469b9f6ae8f76ac5f0d7c6ea239da (2016-12-16)
Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=c750a7de1194d71f2d2ef73f6a919d26b9640cae&tochange=63b447888a6469b9f6ae8f76ac5f0d7c6ea239da

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The priority flag is not set for this bug.
:jgilbert, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 3

[Kelsey Gilbert [:jgilbert]]

I don't see any border on my Win10 (Intel GPU) machine.

Can you attach a copy of your about:support? (or at least the Graphics section?)

Comment 4

[Liz Henry (:lizzard) (relman/hg->git project)]

Happy to take a patch for 70 or beyond.
Since we are getting close to the end of the 69 beta cycle and this is set to P3, I'm marking it fix-optional for 69 and 70 to remove it from weekly triage.

Comment 5

[Oana Botisan, Desktop QA]

Attachment: about:support

Sorry, I responded so late, but I was on PTO.
Attached you can find everything from about:support. I hope this information will help.