xf86-video-intel: unexpected phenomenon on XV texture adapter with no scaling

Jacques, Hugo Hugo.Jacques at verint.com
Tue Jun 23 08:27:03 PDT 2009


This works just fine on my system. 
I added the info on the xorg bugzilla so that Intel folks can put it into the driver.

Many thanks !

Hugo Jacques

> -----Original Message-----
> From: Krzysztof Halasa [mailto:khc at pm.waw.pl]
> Sent: Monday, June 22, 2009 15:59
> To: Roland Scheidegger
> Cc: Jacques, Hugo; xorg at lists.freedesktop.org
> Subject: Re: xf86-video-intel: unexpected phenomenon on XV texture adapter
> with no scaling
> 
> Krzysztof Halasa <khc at pm.waw.pl> writes:
> 
> > It seems that the fix to i915 is:
> >
> > diff --git a/src/i915_video.c b/src/i915_video.c
> > index 1ef58ac..3b4247c 100644
> > --- a/src/i915_video.c
> > +++ b/src/i915_video.c
> > @@ -136,8 +136,8 @@ I915DisplayVideoTextured(ScrnInfoPtr pScrn,
> I830PortPrivPtr pPriv, int id,
> >        format = COLR_BUF_ARGB8888 | DEPTH_FRMT_24_FIXED_8_OTHER;
> >
> >     OUT_BATCH(LOD_PRECLAMP_OGL |
> > -	     DSTORG_HORT_BIAS(0x80) |
> > -	     DSTORG_VERT_BIAS(0x80) |
> > +	     DSTORG_HORT_BIAS(0x8) |
> > +	     DSTORG_VERT_BIAS(0x8) |
> >  	     format);
> >
> >     /* front buffer, pitch, offset */
> >
> 
> I think it's safe to commit. Seems like a simple mistake, those fields
> in that variable seem to be 4-bits wide. Fixes the problem.
> --
> Krzysztof Halasa
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