Q) What is NUL driver good for, if I don't get any output at all?
A) For debugging. The NUL driver is very much like OSMesa. Everything is
- done just the same as VESA/VGA drivers, only it doesn't touches your
- video hardware. You can query the actual buffer by issuing:
+ done just the same as VESA/VGA drivers, only it doesn't touch your video
+ hardware. You can query the actual buffer by issuing:
DMesaGetIntegerv(DMESA_GET_BUFFER_ADDR, &buffer);
and dump it to a file.