815462 - Regression: mis-rendering of SVG path having both blur filter and non-full opacity

Status: RESOLVED FIXED

(Core :: SVG, defect)

Description

[Rémi E.]

Attachment: simplified test illustrating the problem with different combinations of blur, opacity, shape

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:17.0) Gecko/17.0 Firefox/17.0
Build ID: 20121120062532

Steps to reproduce:

I have some SVG files including path that both have a blur filter and are not fully opaque. Since I updated, this combination is not rendering properly anymore.

I could easily find an old browser to check it worked (FF14).  Both my FF17 and a nightly build of FF20a I just tested are failing.


Actual results:

Paths with blur and opacity are not displayed at all. With only blur or opacity or even rectangles, the problem is not present.


Expected results:

The combination blur/translucency/path should work as well.

Comment 1

[Rémi E.]

Attachment: expected "reference" rendering from inkview/inkscape/emacs/...

Attaching expected rendering as produced by other renderers.

Comment 2

[Alice0775 White]

svg.display-lists.painting.enabled = false helps.

Regression window(m-c)
Good:
http://hg.mozilla.org/mozilla-central/rev/688734575830
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120802041638
Bad:
http://hg.mozilla.org/mozilla-central/rev/074fb996dfd7
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120802062038
Pushlog
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=688734575830&tochange=074fb996dfd7


Regression window(m-c)
Good:
http://hg.mozilla.org/integration/mozilla-inbound/rev/a799b5bff84c
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120801155239
Bad:
http://hg.mozilla.org/integration/mozilla-inbound/rev/b077c43a4306
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120801163038
Pushlog
http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=a799b5bff84c&tochange=b077c43a4306

Suspected: Bug 776054

Comment 3

[Alex Keybl [:akeybl]]

Not severe enough to track, but would accept a low risk uplift.

Comment 4

[Jonathan Watt [:jwatt]]

Fixed by bug 806432.