OpenGL hardware Acceleration

OpenGL hardware Acceleration

[J. Burke Murray]

I have looked through the documentation and mailing list archives but I am
still a little confused about opengl hardware acceleration using cygwin/X.
I recently compiled the application that I am working on (Omni3d), and it
works but is slow (compared to the Linux version on the same hardware).  The
code uses X windows.  I am assuming that it is slow because the opengl
rendering is not using hardware acceleration, but I am not sure that that is
the case.

Am I correct in assuming that I cannot get hardware acceleration without a
substantial rewrite of the code?

Thanks in advance.

Burke Murray

Re: OpenGL hardware Acceleration

[Alexander Gottwald]

On Mon, 15 Dec 2003, J. Burke Murray wrote:

> I have looked through the documentation and mailing list archives but I am
> still a little confused about opengl hardware acceleration using cygwin/X.
> I recently compiled the application that I am working on (Omni3d), and it
> works but is slow (compared to the Linux version on the same hardware).  The
> code uses X windows.  I am assuming that it is slow because the opengl
> rendering is not using hardware acceleration, but I am not sure that that is
> the case.
> 
> Am I correct in assuming that I cannot get hardware acceleration without a
> substantial rewrite of the code?

Currently all OpenGL operations are rendered in software. I doubt it is very 
hard to replace the GLX->Mesa interface with a GLX->OpenGL wrapper but I'm
not familar with this interface. 

I've already took a look at the Aqua OpenGL wrapper but there is to much OS X 
specific code to have it quickly ported.

If someone can supply me some pointers on documentation I'd be very happy.

bye
	ago
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