[01HNNWZ0MV43FF]

That's some of the same stuff that SDL is meant to abstract over, right? Although I guess SDL was more targeting Windows / Linux differences than Windows / Windows differences.

[Sharlin]

Also Linux/Linux differences – Xlib, SVGAlib, DirectFB, DRI, GGI, DGA and who knows how many other ways to draw stuff on the screen existed for Linux back then.

[anthk]

SDL1 used to render anything.

[jon-wood]

Yeah, also SDL didn't exist until a year after WinQuake's release.