[GraphicsLayerTextureMapper] Support rounded rect clipping for backdrop-filter r269772 (215445) added rounded rect clipping for backdrop-filter for TextureMapper and CoordinatedGraphics. Let's add the feature to GraphicsLayerTextureMapper. There are tests: css3/filters/backdrop/backdrop-filter-uneven-corner-radii.html css3/filters/backdrop/backdrop-filter-with-border-radius-value-change.html css3/filters/backdrop/backdrop-filter-with-border-radius
Created attachment 414177 [details] Patch
(In reply to Fujii Hironori from comment #0) > r269772 (215445) added rounded rect clipping for backdrop-filter for Oops. It's not linked. Bug 215445 – [GTK][WPE] CSS backdrop overlay corners are not rounded on results.webkit.org This change also fixed the following bug for WinCairo port. Bug 218785 – [TextureMapper] blur backdrop-filter makes its box-shadow blurry
Committed r269838: <https://trac.webkit.org/changeset/269838> All reviewed patches have been landed. Closing bug and clearing flags on attachment 414177 [details].
<rdar://problem/71430152>