106041 2013-01-03 14:23:57 -0800 Some SVG filters don't work with tiled drawing 2013-03-12 05:14:20 -0700 1 1 1 Unclassified WebKit SVG 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 106221 InRadar P2 Normal --- 1 thorton webkit-unassigned andersca bdakin krit simon.fraser webkit-bug-importer zimmermann oldest_to_newest 799679 0 thorton 2013-01-03 14:23:57 -0800 I don't know why, but the following examples: http://srufaculty.sru.edu/david.dailey/svg/Turbulence1.svg http://srufaculty.sru.edu/david.dailey/svg/later/displace4.svg http://srufaculty.sru.edu/david.dailey/svg/later/displace7.svg fail when opened in Safari 6 with tiled drawing on (Mountain Lion, etc.) <rdar://problem/12951224> 800468 1 krit 2013-01-04 11:55:11 -0800 I am unsure how WebKit handles tiled drawings if I recover it correctly. But we limit the filter size (the area that get filtered) to WebCore's viewport IIRC. That might or might not be a problem for tiled drawing. 800621 2 181375 simon.fraser 2013-01-04 14:39:56 -0800 Created attachment 181375 Testcase 800629 3 simon.fraser 2013-01-04 14:46:03 -0800 If you resize the window down so that only 1 tile shows, it starts to work. I think some caching is happening when we attempt to draw the filtered element into other tiles where it's clipped out, and that empty version is getting cached. 800637 4 simon.fraser 2013-01-04 14:54:01 -0800 Turning off the caching in RenderSVGResourceFilter fixes this. So this is about the filtered content being rendered into each tile, but clipped out in some, and a bad version getting cached. 800659 5 simon.fraser 2013-01-04 15:07:24 -0800 Of course RenderSVGShape::paint() bails at: if (!SVGRenderSupport::paintInfoIntersectsRepaintRect(boundingBox, m_localTransform, paintInfo)) return; when painting tiles that don't contain the filtered shape. SVGRenderingContext needs to educated about multiple paint passes of the same rendered into different contexts with different clips. 853354 6 thorton 2013-03-12 05:05:45 -0700 Confusingly, this seems to have progressed. Will bisect the progression. 853360 7 thorton 2013-03-12 05:14:20 -0700 Oh, Florin actually explicitly fixed this. Duping. *** This bug has been marked as a duplicate of bug 106221 *** 181375 2013-01-04 14:39:56 -0800 2013-01-04 14:39:56 -0800 Testcase blur-filter.svg image/svg+xml 601 simon.fraser PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcv MjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIj4KCjxk ZWZzPgogICAgPGZpbHRlciBpZD0iYmx1ciIgPgogICAgICA8ZmVHYXVzc2lhbkJsdXIgc3RkRGV2 aWF0aW9uPSIwIiAvPgogICAgPC9maWx0ZXI+CjwvZGVmcz4KCjwhLS0gPGcgZmlsdGVyPSJ1cmwo I2JsdXIpIj4KICAgIDxyZWN0IHg9IjAiIHk9IjAiIGhlaWdodD0iNjAwIiB3aWR0aD0iMTAwIiBm aWxsPSJyZWQiIC8+CjwvZz4gLS0+CjxnIGZpbHRlcj0idXJsKCNibHVyKSI+CiAgICA8cmVjdCB4 PSIxNTAiIHk9IjAiIGhlaWdodD0iNTAwIiB3aWR0aD0iMTAwIiBmaWxsPSJyZWQiIC8+CjwvZz4K PCEtLSA8ZyBmaWx0ZXI9InVybCgjYmx1cikiPgogICAgPHJlY3QgeD0iMzAwIiB5PSIwIiBoZWln aHQ9IjQwMCIgd2lkdGg9IjEwMCIgZmlsbD0icmVkIiAvPgo8L2c+CjxnIGZpbHRlcj0idXJsKCNi bHVyKSI+CiAgICA8cmVjdCB4PSI0NTAiIHk9IjAiIGhlaWdodD0iMzAwIiB3aWR0aD0iMTAwIiBm aWxsPSJyZWQiIC8+CjwvZz4gLS0+Cgo8L3N2Zz4KCg==