[MPlayer-users] Bicubic scaling in vo_gl - does it ever work?

Vladimir Mosgalin mosgalin at VM10124.spb.edu
Mon Jun 12 20:13:10 CEST 2006

Hi To MPlayer-users mailing list!

 On 2006.06.12 at 21:51:20 +0400, Vladimir Mosgalin wrote next:

> I tried running mplayer under gdb, but the results are no good.
> 0x00582bc0 in s1557 () from /usr/X11R6/lib/modules/dri/fglrx_dri.so
> (gdb) where
> #0  0x00582bc0 in s1557 () from /usr/X11R6/lib/modules/dri/fglrx_dri.so
> #1  0x0057dab8 in s1533 () from /usr/X11R6/lib/modules/dri/fglrx_dri.so
> #2  0x005770c0 in s1531 () from /usr/X11R6/lib/modules/dri/fglrx_dri.so
> #3  0x00580028 in s1545 () from /usr/X11R6/lib/modules/dri/fglrx_dri.so

OK, more interesting info. I recompiled mplayer in debug mode and found
two things:
1) It doesn't hang. It just becomes really slowwwww.. Like 30 seconds
   per frame or so.
2) It spends all of that time switching between functions with
   meaningless names in fgrx_dri

How come? My system can do over 10k glxgears! Is that scaling shader
THAT slow?
OK, joking. Can something be done to find out what exactly is causing a
problem? Even software-emulated -vo gl is MUCH faster than that.



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