NEW 84610
SVG feConvolveMatrix does not implement kernelUnitLength 
https://bugs.webkit.org/show_bug.cgi?id=84610
Summary SVG feConvolveMatrix does not implement kernelUnitLength
Stephen Chenney
Reported 2012-04-23 10:28:00 PDT
The code in FEConvolveMatrix::platformApply does not make any use of the kernelUnitLength property on the filter. Code search did turn up any usage anywhere. I conclude that we have not implemented it.
Attachments
smiley.jpeg (6.25 KB, image/jpeg)
2022-07-14 12:46 PDT, Said Abou-Hallawa 		no flags
Details
test case (5.47 KB, text/html)
2022-07-14 12:48 PDT, Said Abou-Hallawa 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Dirk Schulze
Comment 1 2012-04-23 10:30:20 PDT
(In reply to comment #0) > The code in FEConvolveMatrix::platformApply does not make any use of the kernelUnitLength property on the filter. Code search did turn up any usage anywhere. I conclude that we have not implemented it. That is correct. I think the current spec is a bit vague on how it should work. At least it was not clear to me how we could implement at the time I worked on SVG filters.
Ryosuke Niwa
Comment 3 2022-07-14 11:57:36 PDT
Said? Is this now implemented?
Said Abou-Hallawa
Comment 4 2022-07-14 12:45:13 PDT
No it is not implemented. See FEConvolveMatrixSoftwareApplier::apply() and notice that m_effect.kernelUnitLength() is not used.
Said Abou-Hallawa
Comment 5 2022-07-14 12:46:19 PDT
Created attachment 460900 [details] smiley.jpeg
Said Abou-Hallawa
Comment 6 2022-07-14 12:48:21 PDT
Created attachment 460901 [details] test case Two different filters are applied to the two images. FireFox is the only browser that renders the second image correctly.
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