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Issue 591393 link

Starred by 2 users
Status: WontFix
Owner:
schenney@chromium.org
Closed: Sep 20
Cc:
█ kavvaru@chromium.org
vmp...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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css sprite too fuzzy and laggy when animated when scaled with background-size

Reported by marovito...@gmail.com, Mar 2 2016 
UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36

Example URL:
https://jsfiddle.net/yv6dkjy6/

Steps to reproduce the problem:
1. open fiddle https://jsfiddle.net/yv6dkjy6/
2. check on firefox too for comparison
3. 

What is the expected behavior?
All the 6 samples should look like they do in Firefox throughout the entire animation, without stuttering nor excessive blur.

What went wrong?
Possibly something that has to do with image scaling at particular background-position/size combinations. Attached an image of what i see, also see it here https://i.imgur.com/KCZfq0Z.png just in case.

Does it occur on multiple sites: N/A

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? Yes 

Chrome version: 48.0.2564.116  Channel: n/a
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 20.0 r0
Untitled.png
20.3 KB View Download

Comment 1 by kavvaru@chromium.org, Mar 3 2016

Cc: kavvaru@chromium.org
Components: Blink
Labels: -OS-Windows -Type-Compat M-51 hasbisect Type-Bug-Regression OS-All
Status: Untriaged (was: Unconfirmed)
Able to reproduce the issue on windows 7, Linux Ubuntu 14.04 and Mac 10.11 using chrome version 49.0.2623.75 and canary 51.0.2665.0.
This is regression  issue broken in M40. Please find the bisect information as below

Narrow Bisect::
Good:: 40.0.2204.0  --  (official build 301809)
Bad:: 40.0.2205.0   ---  (official build 302055)

CHANGELOG URL:
  https://chromium.googlesource.com/chromium/src/+log/4b3b42c51c58224b363ffedc412ab5f239a6ec76..6615c1cc5a503300512accc00c28e4cb5989829e

Blink CL :
https://chromium.googlesource.com/chromium/blink/+log/99becd076e8418299b74a9c92ec5bdbdeb6222c..b63742524fec578a8a211a4c55eafcf33e1b7786

Unable to access Blink URL getting 404 Error.
Unable to find the suspect from Change Log.
Could any one from dev team please look into this issue.

Thanks,

Comment 2 by rtoy@chromium.org, Mar 4 2016

Components: -Blink Blink>CSS

Comment 3 by alancutter@chromium.org, Mar 7 2016

Components: -Blink>CSS Blink>Animation Blink>Paint
Status: Available (was: Untriaged)
Confirmed on Linux.

Comment 4 by alancutter@chromium.org, Mar 30 2016

Labels: -M-51 M-40

Comment 5 by suzyh@chromium.org, May 13 2016

Labels: -Pri-2 Pri-1

Comment 6 by bugsnash@chromium.org, May 18 2016

Owner: alancutter@chromium.org
Status: Assigned (was: Available)

Comment 7 by schenney@chromium.org, May 19 2016

Owner: schenney@chromium.org
This is potentially yet another case of our new compositor based image caching code causing problems with background images animating. I'll look into it to verify that it's the same cause, rather than stuttering animation.

Comment 8 by loyso@chromium.org, May 26 2016

Components: -Blink>Animation
Removing Blink>Animation as per #7.

Comment 9 by chrishtr@chromium.org, Jun 3 2016

Labels: -Pri-1 Pri-2

Comment 10 by schenney@chromium.org, Sep 20

Labels: -OS-All
Status: WontFix (was: Assigned)
We look just like Firefox on Mac. Closing.
►

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