freetype字体
支持的字体格式
- TrueType fonts (TTF) and TrueType collections (TTC)
- CFF fonts
- WOFF fonts
- OpenType fonts (OTF, both TrueType and CFF variants) and OpenType collections (OTC)
- Type 1 fonts (PFA and PFB)
- CID-keyed Type 1 fonts
- SFNT-based bitmap fonts, including color Emoji
- X11 PCF fonts
- Windows FNT fonts
- BDF fonts (including anti-aliased ones)
- PFR fonts
- Type 42 fonts (limited support)