文字渲染

文字渲染（text rendering）相關的瀏覽器代碼路徑與資料連結，有請專業人士補充。

代碼路徑

WebKit

Gecko

Windows

• DirectWrite rendering, harfbuzz shaping, Cleartype (default)
• DirectWrite rendering, DirectWrite shaping, Cleartype
• DirectWrite rendering, harfbuzz shaping, Cleartype off (*)
• DirectWrite rendering, DirectWrite shaping, Cleartype off
• GDI rendering, harfbuzz shaping, Cleartype
• GDI rendering, Uniscribe shaping, Cleartype
• GDI rendering, GDI shaping, Cleartype
• GDI rendering, harfbuzz shaping, no Cleartype
• GDI rendering, Uniscribe shaping, no Cleartype
• GDI rendering, GDI shaping, no Cleartype

資料來源

其他

依附關係

• FF4、Chromium → Harfbuzz
• Chromium → Skia → FreeType
• FontConfig → FreeType
• GTK+ → Pango（當下）、Cairo（但是 Chromium 用 Skia）

未來趨勢

Pango 應該會被 Harfbuzz 漸漸取代

外部連結

• （英文）State of Text Rendering（非讀不可、非翻不可）
• （繁體中文）WebKit 直書(w/ CSS Writing Mode)目前的情況
• （英文）Pango, an open-source Unicode text layout engine. by Owen Taylor in Twenty fifth Internationalization and unicode conference, April 2004
• （繁體中文）淺談 Google Skia 圖形處理引擎