引用:
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作者盜鐵人
官網看來的
Firefox 4 的硬體加速技術 Direct2D 及 DirectWrite 只支援 Windows 7, Windows Vista 及 Windows 2008 R2
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因為Direct2D及DirectWrite是屬於Win7、Vista的架構，
所以只有Win7、Vista版的Firefox 4才能調用，不過Mozilla也很貼心，
在XP下也有用到DirectX 9底層的一些加速。
Hardware Acceleration
Firefox 4 supports full hardware acceleration on Windows 7 and Windows Vista via a combination of D2D, DX9 and DX10. This allows us to accelerate everything from Canvas drawing to video rendering. Windows XP users will also enjoy hardware acceleration for many operations because we’re using our new Layers infrastructure along with DX9. And, of course, OSX users have excellent OpenGL support, so we’ve got that covered as well.
https://hacks.mozilla.org/2011/01/f...ile-of-awesome/