243816 2022-08-11 01:23:23 -0700 [Filters] Support CoreGraphics filter 2025-09-19 10:11:11 -0700 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 248175 248180 248181 248193 248197 248318 248354 248375 248483 248587 249753 261925 267354 267566 290845 293212 298425 298453 298501 298544 298845 299063 299189 1 sabouhallawa sabouhallawa bfulgham heycam simon.fraser webkit-bug-importer zalan oldest_to_newest 1890515 0 sabouhallawa 2022-08-11 01:23:23 -0700 Software filters use ImageBuffers to generate the result of their applying to the target element. These buffers can take significant amount of memory if the target element is large or the number of effects are big. CoreGraphics provides a better way to apply FilterEffects. A CGStyle can be used to apply the a FilterEffect to the current drawing. Also beginTransparencyLayer()/endTransparencyLayer() can be used to force applying the FilterEffect only when composting the layer to the destination GraphicsContext. This will treat the drawing commands between beginning and ending the transparency layer as a unit of drawing. 1890516 1 sabouhallawa 2022-08-11 01:30:16 -0700 Pull request: https://github.com/WebKit/WebKit/pull/3216 1892164 2 webkit-bug-importer 2022-08-18 01:24:16 -0700 <rdar://problem/98820279> 1979223 3 heycam 2023-09-21 18:05:39 -0700 rdar://115870393 2119433 4 simon.fraser 2025-05-23 16:30:57 -0700 Blur is the only one left unsupported after fixing bug 290845. 2144162 5 sabouhallawa 2025-09-18 15:47:37 -0700 The CGStyle-based blur filter was enabled by bug 267566.