Hi, I have a Radeon and xvinfo gives me and Ximage size of 2048x2048. Is this the largest size image I can scale? This post puts the fugure around 1000 so I was confused. Further I have successfully tried 1920x1080 images but when I try to scale a 2048x1556 image I get a pink band on the right of the image. What the the true max image size?
Pranay >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] >On Behalf Of [EMAIL PROTECTED] >Sent: Friday, November 02, 2001 2:28 PM >To: Mark Vojkovich >Cc: [EMAIL PROTECTED]; Paul Robertson >Subject: Re: [Xpert]XvShmCreateImage > > > > >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 > >> > >> >> And programatically, from xc/docs/hardcopy/Xv/video >> >> There will be a port encoding with the name "XV_IMAGE". The >> width and height of that encoding will indicate the maximum >> source image size. >> >> Which is what xvinfo will check for. >> >> Mark. >> >> _______________________________________________ >> Xpert mailing list >> [EMAIL PROTECTED] >> http://XFree86.Org/mailman/listinfo/xpert >> > >_______________________________________________ >Xpert mailing list >[EMAIL PROTECTED] >http://XFree86.Org/mailman/listinfo/xpert > _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
