[MPlayer-dev-eng] [PATCH] Improved DGA vertical retrace sync
arpi at thot.banki.hu
Tue Sep 24 15:02:52 CEST 2002
> > yes, as mga cards don't need it at all, they can do buffer switching by
> > hardware, without any help by driver or sw. just program the chip to switch
> > to buffer N. at next vsync, and it will do that.
> Does the tdfxfb driver handle VSYNC? I don't think so from looking at the
> kernel tdfxfb.c and at vo_tdfxfb.c. Or, have I missed something?
i don't think so, as the tdfxfb isn't really an overlay, but a bitmap scaler
which support yuv format textures too.
so, in case of tdfxfb, the scaled image is in the framebuffer, unlike mga
where it's a ghost over the buffer not really rendered but scaled onthefly
A'rpi / Astral & ESP-team
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu
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