1841939 - Rendering artifacts on a Canvas demo with d2d disabled (skia-canvas?)

Status: RESOLVED FIXED

(Core :: Graphics: Canvas2D, defect)

Description

[Mayank Bansal]

Set gfx.direct2d.disabled = true
Go to https://www.fxhash.xyz/generative/9461 and click run (or just click on https://gateway.fxhash2.xyz/ipfs/Qmca8YHxWKddYK9UFBVQnpRVCEjasnqrnKV8EkAzTNJi11/?fxhash=oo9i1giApkzUJwi19wVBxT7MSCpLXKYDqCGXCrXXbdS2jR6kVxa
)

AR: Vertical rendering artifacts in the demo
ER: Not so

This is not a new regression.
With gfx.direct2d.disabled = true,

• Can repro on a Nightly from Jan2020
• Can repro on Nightly with remote canvas disabled
• Can repro on Nighty with gpu-canvas enabled
• Can repro on a new profile
• Can repro with disabling all hardware acceleration (about:preference - > uncheck "use hardware acceleration when available"

Comment 1

[Mayank Bansal]

Attachment: about:support

Comment 2

[Mayank Bansal]

Attachment: Bug_Firefox_Vs_Chrome.png

Comment 3

[Mayank Bansal]

Fixed.
Bisection:
Bug 1931242 - Update fuzz for Skia m132. r=aosmond

Differential Revision: https://phabricator.services.mozilla.com/D229031