Bug 6022

Summary:

SVG Filters do not support source images besides "sourceGraphic" and "sourceAlpha"

Product:

WebKit

Reporter:

Eric Seidel (no email) <eric>

Component:

SVG

Assignee:

Nobody <webkit-unassigned>

Status:

NEW

Severity:

Normal

CC:

agomez, emacemac7, grebenshikov.n, ian, jeffschiller, jonlee, krit, webkit-bug-importer

Priority:

Keywords:

InRadar, NeedsReduction, SVGHitList

Version:

420+

Hardware:

Mac

OS:

OS X 10.4

URL:

http://www.w3.org/TR/SVG/filters.html#CommonAttributes

See Also:

https://bugs.webkit.org/show_bug.cgi?id=150257
https://bugs.webkit.org/show_bug.cgi?id=150258

Bug Depends on:

19835, 19991, 33320

Bug Blocks:

68469, 26389

Attachments:

Description	Flags
testcase showing a related bug	none
Support for FilterEffect SourceAlpha	none

Eric Seidel (no email)

Reported 2005-12-09 00:19:57 PST

Attachments
testcase showing a related bug (575 bytes, image/svg+xml) 2006-01-28 01:33 PST, Alexander Kellett	no flags	Details
Support for FilterEffect SourceAlpha (24.92 KB, patch) 2009-10-03 14:24 PDT, Dirk Schulze	no flags	Details Formatted Diff Diff
View All Add attachment proposed patch, testcase, etc.

Eric Seidel (no email)

Comment 1 2005-12-09 00:23:53 PST

Sorry, we already (clearly!) support <filter-primitive-reference>, just not the rest. None of these should be hard to do (with the possible exception of BackgroundImage/BackgroundAlpha. FillPaint and StrokePaint should probably be implemented as CIImages with ImageProviders, so they can lazily create the bits as needed. SourceAlpha is just SourceGraphic w/ an alpha-only filter applied. All of these should be lazily generated on demand.

Eric Seidel (no email)

Comment 2 2006-01-26 15:45:44 PST

This is one of our two most basic SVG filter support bugs. Shipping SVG with filter support would require solving this bug. Adding SVGHitList keyword and bumping to p2. I've included instructions above on how we might implement these.

Alexander Kellett

Comment 3 2006-01-28 01:33:38 PST

Created attachment 6036 [details] testcase showing a related bug i've attached a reduced testcase showing a bug in the current sourcealpha support

Eric Seidel (no email)

Comment 4 2006-08-11 23:30:24 PDT

Oh, those above numbers were using 5 runs each, cached content.

Eric Seidel (no email)

Comment 5 2007-10-28 04:01:10 PDT

We really need some test cases for these various modes.

Dirk Schulze

Comment 6 2009-10-03 14:24:40 PDT

Created attachment 40584 [details] Support for FilterEffect SourceAlpha Support for FilterEffect SourceAlpha.

Nikolas Zimmermann

Comment 7 2009-10-05 08:02:38 PDT

Comment on attachment 40584 [details] Support for FilterEffect SourceAlpha Looks great, r=me.

Dirk Schulze

Comment 8 2009-10-05 23:02:04 PDT

Comment on attachment 40584 [details] Support for FilterEffect SourceAlpha Clering review flag. Landed in r49153.

Andres Gomez Garcia

Comment 9 2015-10-16 08:44:02 PDT

Just adding a reference test, in case it is useful: https://rawgit.com/tanty/design-hodgepodge/master/svg/filter/feBlend-backgroundimage-tests.html Notice that for SVG 2 the "enable-background" is deprecated and the blending is governed by the isolation property: http://dev.w3.org/fxtf/compositing-1/#isolation Also, notice that, if I'm understanding correctly how the isolation property works, when using a SVG filter we shouldn't worry about what it is behind the SVG document since the filter makes a mandatory isolated group: https://drafts.fxtf.org/compositing-1/#csscompositingrules_SVG Similar issues from other web engines: https://bugzilla.mozilla.org/show_bug.cgi?id=437554 https://code.google.com/p/chromium/issues/detail?id=137230 https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/10238658-implement-backgroundimage-backgroundalpha-input-so

Radar WebKit Bug Importer

Comment 10 2016-04-13 20:05:39 PDT

<rdar://problem/25719215>

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