I'm seeing another issue with the bsd-2-0-0 branch. Various xscreensaver
hacks like gears and sproingies run with an inconsistent stuttering effect
when run at full speed ("-delay 0"), and very slowly with the fps display
turned on ("-delay 0 -fps"). While reporting direct rendering, bzflag is
very much like a slide show...
I've tracked it down to something in r128_do_pixcache_flush. If I stick a
debugging printf in between the R128_WRITE and the start of the for loop
everything runs much more smoothly, and the fps goes up to around 70-80
fps for gears and bzflag is playable.
the R128_WRITE and R128_READ macros are inlined assembly, which is a bit
beyond my depth...
I'm running this on a k6/2 500 running FreeBSD 4.4...
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