Bug 215333

Summary: Shaping can be performed on glyphIDs from the wrong font
Product: WebKit Reporter: Myles C. Maxfield <mmaxfield>
Component: New BugsAssignee: Myles C. Maxfield <mmaxfield>
Status: RESOLVED FIXED    
Severity: Normal CC: darin, dino, jonlee, simon.fraser, thorton, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 206208, 215059    
Attachments:
Description Flags
Patch darin: review+

Description Myles C. Maxfield 2020-08-10 13:01:19 PDT
Shaping can be performed on glyphIDs from the wrong font
Comment 1 Myles C. Maxfield 2020-08-10 13:11:21 PDT
Created attachment 406322 [details]
Patch
Comment 2 Darin Adler 2020-08-10 13:18:30 PDT
Comment on attachment 406322 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=406322&action=review

> Source/WebCore/platform/graphics/WidthIterator.cpp:181
> +            const GlyphData& uppercaseGlyphData = m_font.glyphDataForCharacter(u_toupper(character), m_run.rtl());

I suggest we use "auto&" here and/or have the local variable be the font instead of the glyph data:

    auto glyphFont = m_font.glyphDataForCharacter(u_toupper(character), m_run.rtl()).font;
Comment 3 Myles C. Maxfield 2020-08-10 14:52:07 PDT
Committed r265455: <https://trac.webkit.org/changeset/265455>
Comment 4 Radar WebKit Bug Importer 2020-08-10 14:53:37 PDT
<rdar://problem/66801199>