[SDL] Fast Scrolling

Prasanth Kumar kumar1 at home.com
Sun Aug 15 14:30:27 PDT 1999

> The real way to implement a scroller is to adjust the display aperture
> (portion of video memory which is being displayed) dynamically.  It's
> a more fine-grained application of the process which allows double
> buffering.
> Unfortunately, with modern video cards, the only API that I know of
> that supports this is X11 DGA.  When in a window, you have to implement
> scrolling with a full-window copy.  DirectX only supports page flipping.
> If someone knows better, please let me know!
But this wont work with a parallax scroller would it?

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