bilinear interp. of video source

I want to display some 8 bit live video which I scanconvert in memory using bilinear interpolation. Can I do the interpolation in hardware instead of in the CPU? (Windows) I’ve seen demo’s like the “skier on a cube” which comes close to what I want to do. Is this done by texture mapping, mip mapping, videotex, multitexture extension or some other magic video extension?
If someone could point me in the right direction I’ll be grateful.
Richard I.