Looking for ways to squeese every drop of performance out of an x86 with limit CPU power / Memory, and no 3D Hardware Acceleration, i came across the mesa command glFBDev();

A Driver Allowing Mesa to Render Directly to the Frame Buffer ( /dev/fb0 )
Avoiding X11 Overhead / Bulk / Bloat..

The Machine in Question will only ever run in fullscreen, no need for windows / desktop / anything.

HOWEVER....

I Can Find no documentation.

The prototype for the function does exist in masa, in the headerfile glfbdev.h.
But any attempt to compile an application with a referance to it causes Linker errors.
i cannot find any trace of the library that needs to be linked in.

and no documentation.

Google only finds one or two referances to the keyword in some old mailing lists.

Are there any software developers here from the days of Mesa 5.x and earlyer ?

Why has Rendering Directly to frame buffer been long forgotten ??

Currently, i am toying with DirectFB... An Excellent API, but i would Rather work with OpenGL if possable.