> > Very few machines that the OGC would go into have PCI-X. 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, ... > > > > But many (most?) users are going to want to be able to watch video. > > OGC is supposed to support 2 dual-link displays. Last I read, > > OGC is not going to have an mpeg decoder, and even the hw scaler has > > been dropped. Even if the CPU is fast enough (most will not be), and > > even if you give 100% of the PCI bus to the OGC (not realistic), and > > only driving 1 display, the bits just don't fit. > > We can use the drawing engine to do hardware scaling, and there will be=20 > colourspace conversion. That is, we'll have hardware support for=20 > XVideo. Most of the consumer cards in use today don't offer more than=20 > that, and it works just fine here watching DVDs (Athlon XP 1700+,=20 > Radeon VE QY 32MB AGP).
Is the ATI RAGE XL old enough to be a counterexample? No heat sink, much less a fan, dispite using 0.25um process (so it can't have all that many transistors :-) ). And only supports 8 MB. The pdf below says copyright 2001. Not exactly their latest greatest. ATI RAGE XL claims "on chip DVD decoding". http://www.ati.com/products/brochures/RAGEXL_a2001.pdf I assume, perhaps incorrectly, that most or all of their newer chips have this as well. DVD is just SD. Try 1920x1080. Can the 1700+ and Radeon do that? What is the CPU percent idle? _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
