On Die, 2003-01-21 at 23:19, Hans Korneder wrote: > > > An xvideo picture (actually an video stream) of the size 1920x1080 > > > should be shown in a window of the size 1024x576 (the monitor size is > > > 1280x1024). What actually being displayed is the right hand side of the > > > image, about 80% of the picture, and on the left hand side of the window > > > a pink bar is being displayed. > > > > IIRC, the radeon driver advertises a larger maximum Xv image size than > > the hardware can actually handle. Vladimir? > > Any way to find out the actual image size the hardware can handle? > Is there something like a table of proven capabilities of the cards?
Here's an excerpt from an old post I have on this topic. I don't think the radeon driver has code to skip pixels, and its offscreen images code sets the limit at 1024x1024. > On Wed, 31 Oct 2001, Mark Vojkovich wrote: > > > On Wed, 31 Oct 2001, Dr Andrew C Aitchison wrote: > > > > > On Wed, 31 Oct 2001, Paul Robertson wrote: > > > > > > > Thanks Mark, > > > > > > > > OK, I'll have to live with that limit and undersample my YUV > data as > > > > I copy it into the XvImage. > > > > > > > > If you are right about i810 then that could be a problem for me. > We were > > > > hoping to use that GC in our system. > > > > > > > > Do you know if there is a way to determine what the XvImage > limits are? > > > > My apologies if this is documented somewhere, I couldn't see it. > > > > > > xvinfo|grep "maximum XvImage size" > > > > > > My r128 2048 x 2048 and my i815 reports 720 x 576. > > These are bogus values (for Rage128). In reality it should be > something > like 720xXXXX. Mach64, Rage and Radeon all have limits on the image > size > they can scale. Mach64 - less (even rather small with veryearly > models), > Rage128 - bigger (DVD size) and Radeon - even bigger (HDTV like > greather > than a 1000, don't remember exactly..). Now the trick is that all of > these > can "cheat" in hardware skipping pixels. > > So, we do not have any limits on height (except for video ram size) > and > though there are limits on width the driver might choose not to show > them. > (though the current rage128 driver does not have code to skip pixels). > > Vladimir Dergachev -- Earthling Michel D�nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast _______________________________________________ XFree86 mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xfree86
