On Mon, 19 Jan 2009, morimoto.kunin...@renesas.com wrote:

> > > @@ -768,8 +844,17 @@ static int ov772x_set_fmt(struct soc_camera_device 
> > > *icd,
> > >    * set COM3
> > >    */
> > >   val = priv->fmt->com3;
> > > + if (priv->info->flags & OV772X_FLAG_VFLIP)
> > > +         val |= VFLIP_IMG;
> > > + if (priv->info->flags & OV772X_FLAG_HFLIP)
> > > +         val |= HFLIP_IMG;
> > > +
> > > + mask = SWAP_MASK;
> > > + if (IMG_MASK & val)
> > > +         mask |= IMG_MASK;
> > > +
> > >   ret = ov772x_mask_set(priv->client,
> > > -                       COM3, SWAP_MASK, val);
> > > +                       COM3, mask, val);
> > 
> > Do I understand it right, that this throws away any flip control settings 
> > performed before S_FMT? You probably want to set priv->fmt->com3 in your 
> > set_control and XOR instead of an OR here as well. Or was this 
> > intentional?
> 
> Sorry, I can not understand what you want to say.
> I think set_fmt function set default flip control.
> And set_control function change flip on/off.
> Therefore OR operation on set_fmt is correct I think.
> And set_control use only XOR. priv->fmt->com3 is not needed here.
> Do you say should I remember flip value ?

I think, yes. If someone sets vertical or horizontal flip using the 
respective control, and then calls S_FMT, I think, flip should be 
preserved. S_FMT is in no way a reset, it only sets fields that are 
explicitly passed with it - pixel format, image size, etc.

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to