312898 2026-04-21 08:22:45 -0700 [GTK][WPE] SkiaCompositingLayer doesn't take account drop-shadow transform 2026-04-21 09:03:51 -0700 1 1 1 Unclassified WebKit WPE WebKit WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=218734 P2 Normal --- 1 jani jani bugs-noreply oldest_to_newest 2202750 0 479233 jani 2026-04-21 08:22:45 -0700 Created attachment 479233 test case SkiaCompositingLayer fails to apply drop-shadow filter correctly to layers which have axis-aligned transformations 2202752 1 479234 jani 2026-04-21 08:23:31 -0700 Created attachment 479234 correct reference rendering 2202764 2 jani 2026-04-21 09:03:51 -0700 Pull request: https://github.com/WebKit/WebKit/pull/63233 479233 2026-04-21 08:22:45 -0700 2026-04-21 08:22:45 -0700 test case drop-shadow-transform.html text/html 836 jani PCFET0NUWVBFIGh0bWw+CjxodG1sPgogIDxoZWFkPgogICAgPG1ldGEgbmFtZT0iZnV6enkiIGNv bnRlbnQ9Im1heERpZmZlcmVuY2U9MC0xNjsgdG90YWxQaXhlbHM9MC0zMDAiIC8+CiAgICA8c3R5 bGU+CiAgICAgIC54IGRpdiB7CgkgICAgICB3aWxsLWNoYW5nZTogdHJhbnNmb3JtOwogICAgICB9 CiAgICAgIGRpdiBkaXYgewogICAgICAgIGJhY2tncm91bmQ6IGdyZWVuOwogICAgICAgIHBvc2l0 aW9uOiBhYnNvbHV0ZTsKICAgICAgICB3aWR0aDogMTAwcHg7CiAgICAgICAgaGVpZ2h0OiAxMDBw eDsKICAgICAgICB0b3A6IDEwMHB4OwogICAgICAgIGZpbHRlcjogZHJvcC1zaGFkb3coMjBweCAy MHB4IGJsYWNrKTsKICAgICAgfQogICAgICAuYSB7CiAgICAgICAgdHJhbnNmb3JtOiB0cmFuc2xh dGUoMTUwcHgsMCkgcm90YXRlKDkwZGVnKTsKICAgICAgfQogICAgICAuYiB7CiAgICAgICAgdHJh bnNmb3JtOiB0cmFuc2xhdGUoMzAwcHgsMCkgcm90YXRlKDE4MGRlZyk7CiAgICAgIH0KICAgICAg LmMgewogICAgICAgIHRyYW5zZm9ybTogdHJhbnNsYXRlKDQ1MHB4LDApIHJvdGF0ZSgyNzBkZWcp OwogICAgICB9CiAgICAgIC5kIHsKICAgICAgICB0cmFuc2Zvcm06IHRyYW5zbGF0ZSg2MDBweCww KSByb3RhdGUoMzYwZGVnKTsKICAgICAgfQogICAgPC9zdHlsZT4KICA8L2hlYWQ+CiAgPGJvZHk+ CiAgICA8ZGl2IGNsYXNzPXg+CiAgICAgIDxkaXYgY2xhc3M9YT48L2Rpdj4KICAgICAgPGRpdiBj bGFzcz1iPjwvZGl2PgogICAgICA8ZGl2IGNsYXNzPWM+PC9kaXY+CiAgICAgIDxkaXYgY2xhc3M9 ZD48L2Rpdj4KICAgIDwvZGl2PgogIDwvYm9keT4KPC9odG1sPgo= 479234 2026-04-21 08:23:31 -0700 2026-04-21 08:23:31 -0700 correct reference rendering drop-shadow-expected.html text/html 1083 jani PCFET0NUWVBFIGh0bWw+CjxodG1sPgogICAgPGhlYWQ+CiAgICAgICAgPHN0eWxlPgogICAgICAg ICAgICAjeCB7CiAgICAgICAgICAgICAgICB0cmFuc2Zvcm06IHRyYW5zbGF0ZSgxMDBweCwgMTAw cHgpOwogICAgICAgICAgICB9CiAgICAgICAgICAgIGRpdiBkaXYgewogICAgICAgICAgICAgICAg cG9zaXRpb246IGFic29sdXRlOwogICAgICAgICAgICAgICAgd2lkdGg6IDEwMHB4OwogICAgICAg ICAgICAgICAgaGVpZ2h0OiAxMDBweDsKICAgICAgICAgICAgICAgIGJhY2tncm91bmQ6IGdyZWVu OwogICAgICAgICAgICB9CiAgICAgICAgICAgIC5hIHsKICAgICAgICAgICAgICAgIHRyYW5zZm9y bTogdHJhbnNsYXRlKC02MHB4LCAtNjBweCk7CiAgICAgICAgICAgICAgICBmaWx0ZXI6IGRyb3At c2hhZG93KC0yMHB4IC0yMHB4IDBweCBibHVlKTsKICAgICAgICAgICAgfQogICAgICAgICAgICAu YiB7CiAgICAgICAgICAgICAgICB0cmFuc2Zvcm06IHRyYW5zbGF0ZSgtNjBweCwgNjBweCk7CiAg ICAgICAgICAgICAgICBmaWx0ZXI6IGRyb3Atc2hhZG93KC0yMHB4IDIwcHggMHB4IGJsdWUpOwog ICAgICAgICAgICB9CiAgICAgICAgICAgIC5jIHsKICAgICAgICAgICAgICAgIHRyYW5zZm9ybTog dHJhbnNsYXRlKDYwcHgsIC02MHB4KTsKICAgICAgICAgICAgICAgIGZpbHRlcjogZHJvcC1zaGFk b3coMjBweCAtMjBweCAwcHggYmx1ZSk7CiAgICAgICAgICAgIH0KICAgICAgICAgICAgLmQgewog ICAgICAgICAgICAgICAgdHJhbnNmb3JtOiB0cmFuc2xhdGUoNjBweCwgNjBweCk7CiAgICAgICAg ICAgICAgICBmaWx0ZXI6IGRyb3Atc2hhZG93KDIwcHggMjBweCAwcHggYmx1ZSk7CiAgICAgICAg ICAgIH0KICAgICAgICA8L3N0eWxlPgogICAgPC9oZWFkPgogICAgPGJvZHk+CiAgICAgICAgPGRp diBpZD14PgogICAgICAgICAgICA8ZGl2IGNsYXNzPWE+PC9kaXY+CiAgICAgICAgICAgIDxkaXYg Y2xhc3M9Yj48L2Rpdj4KICAgICAgICAgICAgPGRpdiBjbGFzcz1jPjwvZGl2PgogICAgICAgICAg ICA8ZGl2IGNsYXNzPWQ+PC9kaXY+CiAgICAgICAgPC9kaXY+CiAgICA8L2JvZHk+CjwvaHRtbD4K