> DGA was used in the days before Xvideo to have a fast path > to the graphics card. It was done by giving the X client > a portion of the graphics card memory as dumb framebuffer. > AFAIK the only use was for software renderer and vido players. > It's main disadvantage was that it could not operate in a > window and thus had to switch into fullscreen. After the release > of XF86 4.0 its already little usage was reduced to zero. > > IIRC only MPlayer and VLC still support DGA output.
Sounds like this DGA thingy breaks the X11 model and would only work if the client and server are on the same host? Speaking of video decoding, that's the one thing ATI hasn't documented, and might not ever document due to fear of flying chairs. Which leaves a market opportunity for OGP. Given the existance of low wattage video decoding chips I assume that video decoding doesn't need nearly as many gates as 3D graphics, which seems to need a direct feed from your local hydroelectric plant. Fewer gates implies lower fab costs and perhaps faster design time. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
