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Issue 595324 link

Starred by 2 users

Issue metadata

Status: Fixed
Owner:
Closed: Mar 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: All
Pri: 2
Type: Bug-Regression



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SVG filter display error

Reported by vstel...@gmail.com, Mar 16 2016

Issue description

UserAgent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36

Example URL:
https://jsfiddle.net/aea48ohn/

Steps to reproduce the problem:
1. 
2. 
3. 

What is the expected behavior?
svg does a blur effect

What went wrong?
blur effect produces another layer of itselft since 15.03.2016

Does it occur on multiple sites: N/A

Is it a problem with a plugin? N/A 

Did this work before? Yes 14.03.2016

Does this work in other browsers? Yes 

Chrome version: 49.0.2623.87  Channel: stable
OS Version: 6.2 (Windows 8)
Flash Version: Shockwave Flash 21.0 r0

see example on jfiddle:
https://jsfiddle.net/aea48ohn/
 

Comment 1 by f...@opera.com, Mar 16 2016

Components: Blink>SVG

Comment 2 by f...@opera.com, Mar 16 2016

Cc: senorblanco@chromium.org
Labels: -OS-Windows -Type-Compat OS-All Type-Bug-Regression
Status: Available (was: Unconfirmed)
Looks like tiling artifacts. Reduction: https://jsfiddle.net/c7r4x0v4/

Comment 3 by f...@opera.com, Mar 16 2016

Labels: Needs-Bisect
Cc: -senorblanco@chromium.org
Components: Internals>Skia Blink>CSS>Filters
Labels: -Needs-Bisect
Owner: senorblanco@chromium.org
Status: Assigned (was: Available)
You are probably looking for a change made after 365067 (known good), but no later than 365075 (first known bad).
CHANGELOG URL:
  https://chromium.googlesource.com/chromium/src/+log/e2ca0c18f40c746cafc2bb594bd5d8b06341cb1b..7f87dbd5a96f0e29039285544428b5298cb22aa2

Looks like fallout from d9ceaad90369f2840adfb88515298c816afb5c72

Does not repro with GPU rasterization.
Note: doesn't seem to occur when the stdDevation of the second feGaussianBlur is >= 0.53192309. (I'm sure this will seem significant in retrospect.)
Fix up for review in Skia: https://codereview.chromium.org/1807673005/
Project Member

Comment 7 by bugdroid1@chromium.org, Mar 16 2016

The following revision refers to this bug:
  https://skia.googlesource.com/skia.git/+/bf680c30a280d4d7b3b8d5fedf23defff348cb50

commit bf680c30a280d4d7b3b8d5fedf23defff348cb50
Author: senorblanco <senorblanco@chromium.org>
Date: Wed Mar 16 23:15:53 2016

Image filters: fix the zero-sigma fast path in SkBlurImageFilter.

The fast path was not correctly taking the input srcOffset into account.

BUG= 595324 
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1807673005

Review URL: https://codereview.chromium.org/1807673005

[modify] https://crrev.com/bf680c30a280d4d7b3b8d5fedf23defff348cb50/src/effects/SkBlurImageFilter.cpp
[modify] https://crrev.com/bf680c30a280d4d7b3b8d5fedf23defff348cb50/tests/ImageFilterTest.cpp

Status: Fixed (was: Assigned)

Comment 9 by suzyh@chromium.org, Apr 5 2017

Components: -Blink>CSS>Filters Blink>Compositing>Filters

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