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Issue 916202 link

Starred by 2 users
Status: Assigned
Owner:
xidac...@chromium.org
Cc:
phanindra.mandapaka@chromium.org
vmp...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 2
Type: Bug



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paintWorklet glitch on high dpi

Reported by ncode....@gmail.com, Dec 18 
UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36

Steps to reproduce the problem:
With Windows at 175% scaling, see:
https://codepen.io/ncodefun/pen/GPqWjp 

1. use a paintWorklet that draws a superellipse (squircle) with a border to amplify the glitch
2. animate a change of size
3. see it on a 4K monitor (Windows 175% scaling)

What is the expected behavior?
smooth contour

What went wrong?
contour is disrupted

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 71.0.3578.98  Channel: stable
OS Version: 10.0
Flash Version:

Comment 1 by gov...@chromium.org, Dec 19

Labels: Needs-Triage-M71

Comment 2 by phanindra.mandapaka@chromium.org, Dec 19

Cc: phanindra.mandapaka@chromium.org
Labels: Triaged-ET Target-73 M-73 FoundIn-72 FoundIn-73 FoundIn-70 OS-Linux OS-Mac
Status: Untriaged (was: Unconfirmed)
Thanks for filing the issue...

Able to reproduce the issue on reported chrome version 71.0.3578.98 also on latest chrome 73.0.3644.0 using Mac 10.14.0, Ubuntu 17.10 and Windows 10.  
 
Same behavior is seen on M65(65.0.3325.181) hence considering it as non-regression and marking it as Untriaged.

Note: Observed blank screen from M-60 to M-64.

Comment 3 by schenney@chromium.org, Dec 19

Labels: -Target-73 -Needs-Triage-M71
Owner: xidac...@chromium.org
Status: Assigned (was: Untriaged)
Broken on anything other than 100% zoom on Linux with a 4k monitor.

Over to paint worklet folks, if I'm not mistaken on who that is.

Removing Target labels.
►

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