Date: Wed, 19 Nov 1997 10:25:14 -0800 (PST) From: Doug White <dwhite@gdi.uoregon.edu> To: Charles Henrich <henrich@crh.cl.msu.edu> Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: Faster X Updates Message-ID: <Pine.BSF.3.96.971119102326.3360K-100000@gdi.uoregon.edu> In-Reply-To: <19971119101919.49668@crh.cl.msu.edu>
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On Wed, 19 Nov 1997, Charles Henrich wrote: > I wrote a little test program that doesnt do anything but printf()'s to > the X screen. At best it appears to run at 1/50th a second. So my > question is, for the BrookTree drivers, are you eeking out a better > frame rate, and if so, how? The Brooktree video capture board writes data directly to the video card's framebuffer through a PCI-PCI transfer. It runs independently of XFree updates. the frame rate is somewhat dependent on how fast your machine can truck PCI data around and how long it takes the video card to redraw the display. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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