investigate using new DirectWrite API's for system font fallback

NEW
Assigned to

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()

3 years ago
2 years ago

People

(Reporter: jtd, Assigned: jtd)

Tracking

({feature})

Trunk
Unspecified
Windows
feature
Points:
---

Firefox Tracking Flags

(firefox46 affected)

Details

(Assignee)

Description

3 years ago
Recent versions of DirectWrite appear to support system font fallback than past versions. We should investigate whether it makes sense to switch to using IDWriteFactory2::GetSystemFontFallback and IDWriteFontFallback::MapCharacters.

http://stackoverflow.com/questions/25693651/how-does-directwrite-createtextformat-pick-the-fallback-fonts

Not sure whether this will improve perf or fix problems with font matching for scripts not supported via system fonts.
Keywords: feature
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