Bug 225047

Summary: REGRESSION(r272379) [Win] Some emojis are painted with a blank square on the right side of it
Product: WebKit Reporter: Fujii Hironori <Hironori.Fujii>
Component: TextAssignee: Fujii Hironori <Hironori.Fujii>
Status: RESOLVED FIXED    
Severity: Normal CC: don.olmstead, mmaxfield, pvollan, ross.kirsling, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
WIP patch
none
Patch none

Description Fujii Hironori 2021-04-25 23:34:29 PDT 
[Win] Some emojis are painted with a blank square on the right side of it

For example, 🍞 shows a bread emoji and a blank square.
Both AppleWin an WinCairo

r272293 Good
r273306 Bad
Comment 1 Fujii Hironori 2021-04-25 23:47:03 PDT 
Reverting r272379 (233707@main, Bug 221356) fixes the issue.

Bug 221356 – Supplementary code points (U+10000 - U+10FFFF) are not shaped correctly in the fast text codepath
Bug 221523 – REGRESSION(r272379) [WPE] imported/w3c/web-platform-tests/mathml/relations/css-styling/mathvariant tests are Image Failing
Comment 2 Fujii Hironori 2021-04-25 23:48:59 PDT 
Created attachment 427027 [details]
WIP patch
Comment 3 Fujii Hironori 2021-04-26 00:42:42 PDT 
Created attachment 427028 [details]
Patch
Comment 4 Fujii Hironori 2021-04-26 12:46:56 PDT 
Comment on attachment 427028 [details]
Patch

Clearing flags on attachment: 427028

Committed r276607 (237037@main): <https://commits.webkit.org/237037@main>
Comment 5 Fujii Hironori 2021-04-26 12:46:59 PDT 
All reviewed patches have been landed.  Closing bug.
Comment 6 Radar WebKit Bug Importer 2021-04-26 12:47:35 PDT 
<rdar://problem/77171123>