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[directfb-dev] Re: Seeing "tearing" using mplayer dfbmga
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[directfb-dev] Re: Seeing "tearing" using mplayer dfbmga



On Sun, 2002-12-08 at 07:08, Ville Syrjälä wrote:
> > In some hardware, flips are
> > automatically done during vblank, thus you can actually program the
> > registers then wait for vsync (or not wait at all).  This one is perfect
> > for mplayer since it already regulates the frame rate via time stamps,
> > and flips are automatically done during vblanks without additional CPU
> > penalty. 
> > 
> > In others, flips are independent of vblank/vsync (async flips).  In this
> > case you have to wait for vsync, then touch the registers to avoid
> > tearing effects. Yours is most probably this case.
> 
> ??
> 
> > This is precisely the reason I asked for further differentiation of the
> > wait_for_vsync flags in a message I sent some time ago.
> 
> I don't think I've seen that message. And didn't find anything in the
> archives either.
> 

http://www.directfb.org/mailinglists/directfb-dev/2002/09-2002/msg00007.html





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