Can 3D acceleration work in [1]ModeX? 2D?

1.  Every n+1 pixel is for the next screen(FB).  This format makes SW
bliting of a pix to more than one screen faster, as you only have to
iritate the source(and destination) once.

--- Ville Syrjälä <[EMAIL PROTECTED]> wrote:
> On Sun, May 16, 2004 at 03:49:49AM -0700, Mike Mestnik wrote:
> > 
> > A fue other questions, directed at the memory mngmt ppl.  What about
> 2d
> > only page fliping, ModeX and the like?  Where these ever supported
> outside
> > of libsvga?  Are thay rellecs from the past that can die?
> 
> Page flipping is important. DirectFB uses it a lot. fbdev is almost
> enough 
> to implement proper page flipping. The only thing missing is getting the
> 
> current vblank counter from the pan ioctl(). Without that good triple 
> buffering is impossible. And then there is the problem that fbdev
> doesn't 
> handle overlays so good triple buffering for overlays is impossible
> right 
> now. That is why I'm quite fond of the "feed the kernel complete
> register 
> values"-interface. It would work for CRTCs and overlays.
> 
> Oh and there is no 2D vs. 3D page flipping.
> 
> -- 
> Ville Syrjälä
> [EMAIL PROTECTED]
> http://www.sci.fi/~syrjala/
> 
> 
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