[PATCH] radeon: avoid rounding errors in texture coords for textured xv
michel at daenzer.net
Mon Feb 20 01:59:21 PST 2012
On Sam, 2012-02-18 at 21:21 +0100, Roland Scheidegger wrote:
> make sure the division is done with floats, otherwise the coordinate
> can be wrong up to 1 texel.
> Particularly visible with clipping and small source scaled up (since one
> texel can be a shift of several pixels) but could be seen even unscaled.
> Should provide more accurate coords without clipping too depending on the
> scale factor probably.
> Changed for r100-r600, though only tested on r300.
Reviewed-by: Michel Dänzer <michel at daenzer.net>
Can you push yourself?
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Debian, X and DRI developer
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