Re: [Xen-devel][RFC] Dynamic modes support for PV xenfb (included)

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>]

Samuel Thibault, le Mon 10 Mar 2008 16:16:57 +0000, a écrit :
> Pat Campbell, le Sun 09 Mar 2008 15:19:59 -0600, a écrit :
> > diff -r 854b0704962b tools/ioemu/hw/xenfb.c
> > --- a/tools/ioemu/hw/xenfb.c        Wed Mar 05 09:43:03 2008 +0000
> > +++ b/tools/ioemu/hw/xenfb.c        Fri Mar 07 13:44:09 2008 -0600
> > @@ -516,6 +516,15 @@ static void xenfb_on_fb_event(struct xen
> >                     }
> >                     xenfb_guest_copy(xenfb, x, y, w, h);
> >                     break;
> > +           case XENFB_TYPE_RESIZE:
> > +                   xenfb->width  = event->resize.width;
> > +                   xenfb->height = event->resize.height;
> > +                   xenfb->row_stride = event->resize.stride;
> > +                   /* Disable video buf sharing, not compatable with 
> > resizing */
> > +                   dpy_colourdepth(xenfb->ds, 0);
> > +                   dpy_resize(xenfb->ds, xenfb->width, xenfb->height);
> 
> Insert if (xenfb->ds->shared_buf) dpy_setdata(xenfb->ds, xenfb->pixels);
> just after dpy_colourdepth() and dpy_resize(), and the video buf sharing
> will work (so you can replace 0 with xenfb->depth in the colourdepth
> call).

That actually leads me to the the question of an "offset" support in the
resize event; it would actually be very easy: just add xenfb->offset to
xenfb->pixels in the dpy_setdata call, as well as in the BLT macro and
memcpy call in xenfb_guest_copy.

Samuel

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