Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 785dda5a7b969116787e33654a459c03ece58021
https://github.com/WebKit/WebKit/commit/785dda5a7b969116787e33654a459c03ece58021
Author: Ahmad Saleem <[email protected]>
Date: 2026-04-06 (Mon, 06 Apr 2026)
Changed paths:
A
LayoutTests/imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-inset-round-rendering-expected.html
A
LayoutTests/imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-inset-round-rendering-ref.html
A
LayoutTests/imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-inset-round-rendering.html
M Source/WebCore/platform/graphics/Path.cpp
Log Message:
-----------
clip-path: inset() border-radius dropped at specific sizes due to float
precision
https://bugs.webkit.org/show_bug.cgi?id=258125
rdar://110847266
Reviewed by Simon Fraser.
Path::addRoundedRect() falls back to a plain rectangle when
FloatRoundedRect::isRenderable() returns false. After
calcBorderRadiiConstraintScaleFor() scales radii to fit the inset rect,
floating-point imprecision can cause the sum of adjacent scaled radii to
exceed the rect dimension by an epsilon, making isRenderable() fail.
Instead of dropping radii entirely, call adjustRadii() to re-constrain
them, matching the approach already used in
BackgroundPainter::clipRoundedInnerRect(). Only fall back to a plain
rect if adjustRadii() yields zero radii.
Tests:
imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-inset-round-rendering-ref.html
imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-inset-round-rendering.html
*
LayoutTests/imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-inset-round-rendering-expected.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-inset-round-rendering-ref.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-inset-round-rendering.html:
Added.
* Source/WebCore/platform/graphics/Path.cpp:
(WebCore::Path::addRoundedRect):
Canonical link: https://commits.webkit.org/310643@main
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