1805231 - Codepen demo (https://codepen.io/MittenedWatchmaker/pen/NLgxvz) doesnt render anything with gpu-canvas

Status: VERIFIED FIXED

(Core :: Graphics: Canvas2D, defect)

Description

[Mayank Bansal]

Enable gpu-canvas
Go to https://codepen.io/MittenedWatchmaker/pen/NLgxvz

ER: animation
AR: Nothing.

2022-12-12T22:45:10.398000: DEBUG : Found commit message:
Bug 1801548 - Ignore round cap-style for sufficiently thin lines. r=jrmuizel

Differential Revision: https://phabricator.services.mozilla.com/D162498

2022-12-12T22:45:10.398000: DEBUG : Did not find a branch, checking all integration branches
2022-12-12T22:45:10.398000: INFO : The bisection is done.
2022-12-12T22:45:10.430000: INFO : Stopped

Comment 1

[Mayank Bansal]

Attachment: about:support

Comment 2

[Mayank Bansal]

Attachment: Standalone_Testcase.html

Comment 3

[Mayank Bansal]

Apparently, even though nothing is drawn on the screen, the page continues to use cpu/gpu : https://share.firefox.dev/3HpErW1

Comment 4

[Lee Salzman [:lsalzman]]

Attachment: Bug 1805231 - Handle zero-length capped lines. r?aosmond

Avoid causing a divide-by-zero when a stroked line is zero-length and only the cap is rendered.

Comment 5

[BugBot [:suhaib / :marco]]

Set release status flags based on info from the regressing bug 1801548

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/3646f851193f
Handle zero-length capped lines. r=aosmond

Comment 7

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/3646f851193f

Comment 8

[BugBot [:suhaib / :marco]]

The patch landed in nightly and beta is affected.
:lsalzman, is this bug important enough to require an uplift?

• If yes, please nominate the patch for beta approval.
• If no, please set status-firefox109 to wontfix.

For more information, please visit auto_nag documentation.

Comment 9

[Ardelean Oana, Desktop Test Engineering [:oardelean]]

Managed to reproduce on a 2022-12-12 Nightly build on macOS 12.
Verified as fixed on Firefox 110.0b5(build ID: 20230124185837) and Nightly 111.0a1(build ID: 20230126094703) on macOS 12, Windows 10, Ubuntu 22.