Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: fc7afbc7e662cf0318706a9e66b2d684360b5cb6
https://github.com/WebKit/WebKit/commit/fc7afbc7e662cf0318706a9e66b2d684360b5cb6
Author: Vitor Roriz <[email protected]>
Date: 2026-06-09 (Tue, 09 Jun 2026)
Changed paths:
A
LayoutTests/imported/w3c/web-platform-tests/css/css-fonts/variations/font-weight-3-expected.html
A
LayoutTests/imported/w3c/web-platform-tests/css/css-fonts/variations/font-weight-3-ref.html
A
LayoutTests/imported/w3c/web-platform-tests/css/css-fonts/variations/font-weight-3.html
M Source/WebCore/platform/graphics/FontCustomPlatformData.h
Log Message:
-----------
font-synthesis: Synthetic bold not applied for variable font with
font-weight: normal
https://bugs.webkit.org/show_bug.cgi?id=316532
rdar://179001275
Reviewed by Alan Baradlay.
After https://commits.webkit.org/314537@main, synthetic bold was suppressed for
any variable font with a wght axis. This regressed faces that explicitly declare
a non-bold font-weight, notably font-weight: normal: the descriptor pins the
face
to a weight the clamped axis cannot make bold, so synthesis is still needed.
Faces that declare a bold-capable weight (for example font-weight: 700) were
unaffected, since the axis already provides bold. Therefore only suppress
synthesis when the font-weight descriptor is auto, letting the variable axis own
the weight in that case.
Spec: https://drafts.csswg.org/css-fonts-4/#font-prop-desc
Resolution: https://github.com/w3c/csswg-drafts/issues/7999
*
LayoutTests/imported/w3c/web-platform-tests/css/css-fonts/variations/font-weight-3-expected.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-fonts/variations/font-weight-3-ref.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-fonts/variations/font-weight-3.html:
Added.
* Source/WebCore/platform/graphics/FontCustomPlatformData.h:
(WebCore::computeSyntheticBold):
Canonical link: https://commits.webkit.org/314814@main
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