[OpenJDK 2D-Dev] Questions about the X11 backend

Phil Race Phil.Race at Sun.COM
Sun May 4 01:25:47 UTC 2008

Jim Graham wrote:
> Hi Clemens,
>> 4.) Is DGA still used? I see quite a lot #ifdef's for missing MITSHM
>> and DGA, but I wonder wether there are still systems without MITSHM,
>> and the other way round for DGA.
> I believe it may no longer be in use, but Dmitri would have to answer 
> to be sure.  It was a Sun-specific API for coordinating talking 
> directly to the framebuffer with the X11 server.  Since then more work 
> on the X11 and OpenGL pipelines and the use of MITSHM and the fact 
> that Sun stopped shipping framebuffers with DGA drivers at some point 
> made the importance of that pipeline wane...

Well, still its in daily use on my Solaris 10 SPARC SB2000 with FFB2+.
So I'm not sure I'd want to ditch DGA quite yet. I think it should stay 
at least for JDK7.


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