[MPlayer-dev-eng] ATI + vidix scaler quality

[Alex Beregszaszi]

<20020707162649.A21307 at localhost.localdomain.hu>; from alex at naxine.org on Sun, Jul 07, 2002 at 04:26:49PM +0200
> Hi,
> 
> > Alex mentioned some time ago that vidix scaling on radeon looks ugly.
> > Now i'v tested vidix on notebook with mach64, and the vidix scaling is
> > simple nearest-neighbour type (YUY2) :(
> > GATOS drivers (Xv) has nice scaling on the same machine, looks like
> > bicubic or so.
> hmm, i will look at the gatos source (as soon as i put my radeon back ;)
gatos xv's default values are:
OVERLAY_SCALE_CNTL	0x80000000
OVERLAY_EXCLUSIVE_HORZ	0
OVERLAY_EXCLUSIVE_VERT	0
SCALER_H_COEFF0		0x00002000
SCALER_H_COEFF1		0x0D06200D
SCALER_H_COEFF2		0x0D0A1C0D
SCALER_H_COEFF3		0x0C0E1A0C
SCALER_H_COEFF4		0x0C14140C

and for scaling:
OVERLAY_SCALE_CNTL	0x4000001 | (3 << 30)

hm, i will immediately swap my cards, the gatos driver seems to be very perfect
-
alex