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Re: OpenGL program under Cygiwn/XFree86
- From: Harold L Hunt <huntharo at msu dot edu>
- To: cygwin-xfree at cygwin dot com
- Date: Tue, 09 Jul 2002 15:52:01 EDT
- Subject: Re: OpenGL program under Cygiwn/XFree86
Raul,
> >OpenGL is supported under Cygwin, mplayer detects it,
> >compiles and runs it (http://www.mplayerhq.hu)
>
> I am curious.
>
> Is it accelerated?
>
> Suposing that there is an accelerated opengl dll natively in
> windows.
No, OpenGL is not accelerated in Cygwin/XFree86. We use Mesa for OpenGL
support in Cygwin/XFree86, and Mesa uses FB to draw to an offscreen
framebuffer that is occasionally transferred to the screen.
It sounds plausible that one could tie the Cygwin/XFree86 OpenGL layer into
the Windows OpenGL API, but no one has volunteered to look into the difficulty
of doing so. I would very much appreciate someone putting a little bit of
time into simply telling us how much time and difficulty would potentially be
involved in this task.
Harold