[SDL] BUG?: RGBA->screen blit has 1-off error with opaque colors

[Torsten Giebl]

Hello !


> I've come across something similar which causes problems when trying to
> implement a cursor using xor. It's more than just annoying in that case.


For me the first thing is that the blitting
of SDL should be exact. Speed comes after that.
If someone needs fast Alpha Bleding and if SDL
is not fast enough, he might use OpenGL.


CU