15 Sep
2011
15 Sep
'11
9:31 p.m.
Okay, I see your problem. It's a bit strange you don't have acceleration. I
The hardware has 3D acceleration but not open so we can't support it. There is no 2D acceleration - which seems to be increasingly common.
At some point I'll add hardware scrolling however by using the GTT to implemnent scroll wrapping.
sound like a big problem to me, but pretty inefficient, so probably copying the existing ones and adjusting it to your needs would be preferred (just like the sys* implementations exist).
I did have a look at the current ones but fixing them up given scan lines can span page boundaries looked pretty horrible so I deferred it until I feel inspired.
Alan