Re: buffer age & slices: nasty problems

On Thu, 15 Jan 2004 12:00:55 -0500
D Richard Felker III <[email protected]> wrote:

> > Do they give so much speed that it's worth this mess ?
> > For me it looks like that there is a lot of overhead that
> > is needed for proper slice handling that it eats a lot
> > of the cpu time we got out of slices.
> 
> For just plain drawing, yes, it's huge. Having either slices or DR2
> (or both) is absolutely required for a player that doesn't suck. On
> the other hand, I have no idea if slices significantly improve
> performance when real filtering is involved, since the extra code
> coming into the cache to do the image processing might slow us down as
> much as having the pixels in the cache speeds us up. I wish we had a
> good way of knowing without spending tons of effort writing this ugly
> mess...


In any case of doubt, go allways for the simplest aproach :)


			Attila Kinali

-- 
egp ist vergleichbar mit einem ikea bausatz fuer flugzeugtraeger
			-- reeler in +kaosu