Re: OpenGL program under Cygiwn/XFree86

[Raul Dias <chaos at swi dot com dot br>]

Hi,


Harold L Hunt <huntharo@msu.edu> wrote:
>> 
>> 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.

I am glad to know that this is Mesa.

I read some time ago that someone was writting a direct3d driver for mesa, 
so that it would work with almost all boards in windows.
Maybe this could be usefull for cygwin.

-Raul Dias


>
>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
>