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Re: Java Faster on Linux Than on Windows

In article <3357667.43WuSxtlum@xxxxxxxxxxxxxxx>, Roy Schestowitz wrote:
> What about /this/, Nessuno?
> 
> ,----[ Quote ]
>|     In the current implementation (as of 2005-09-22) of the OpenGL
>| graphics library in Windows Vista - a soon to be released new version of
>| the Microsoft Windows operating system, OpenGL is not a stand alonelibrary. 
>| Instead it functions as a wrapper around DirectX, and is frozen to the
>| vanilla version of OpenGL 1.4.

That's just the default implementation, and that's how it has worked from
Windows 95 onward.  But who uses the default implementation?  The video card
vendor will provide an ICD that provides later versions of OpenGL, and
provides vendor-specific acceleration:

    Also, according to a Microsoft Blog, there are two OpenGL paths
    under Vista. An application can use the default implementation, frozen
    at OpenGL version 1.4. An application can use an ICD as well, which
    comes in two flavors: legacy and Vista-compatible. A legacy ICD
    functions as specified above: the activation of one will turn off the
    desktop compositor. A Vista-compatible ICD, made by IHVs using a new
    internal API path provided by Microsoft, will be completely compatible
    with the desktop compositor. Given the statements made by the two
    primary OpenGL ICD vendors (ATi and nVidia), it would be reasonable to
    expect both to provide full Vista-compatible ICDs for Windows Vista.

-- 
--Tim Smith

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