> > So you only get "plain" PCI. And you have to share that 133 MBps > > with the other PCI devices. > > > > And lots of machines have other important high-bandwidth devices on > > the PCI bus. > > > > That's fine for mostly static things like most desktop apps. Email, > > spreadsheet, image viewer, most web browser use, ... > > Newer machines have more than one PCI bus.
The only reason to use PCI is to be able to plug it into older machines. If you have to buy a new mainboard to use OGP it will have PCIe. I'm told that PCIe is less expensive than PCI (connector uses less gold?). This doesn't mean I am lobbying for OGC to use PCIe. PCI has plenty of bandwidth for HDTV *if* you feed the encoded version (< 20 Mbps) to the card and have the card decode it. The bigger problem is the CPU. Even recent machines cannot display HDTV using open source drivers. Older machines have even less CPU power. > The hardware scaler is only needed for analog TV Why? Most people most of the time will want the picture to be as large as the display allows. If the source is SD and the display is HD they will want it scaled up. If the source is HD and the display is SD they need it scaled down. Even within HD you have 1280x720 and 1920x1080. And in many cases the display will not match any of these. > > d) Include a separate decoder chip. (If there is one that is > > documented, and is usable with the architecture.) > > It could just be a CPU chip doing it in software. Where do you get a CPU that is fast enough? _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
