Re: [Qemu-devel] [PATCH] implement vnc_dpy_setdata

[Anthony Liguori]

On 03/08/2012 04:19 AM, Gerd Hoffmann wrote:
> The comment is wrong, we have to do something in the setdata callback.
> Changing the framebuffer backing storage (happens when the guest pans
> the display) renders the whole screen content invalid.
>
> Trigger #1: cirrus vga + 32bit linux guest + vesafb with ypan enabled.
> Trigger #2: std vga + http://patchwork.ozlabs.org/patch/145479/
>
> Signed-off-by: Gerd Hoffmann<address@hidden>

Applied.  Thanks.

Regards,

Anthony Liguori

> ---
>   ui/vnc.c |    5 ++++-
>   1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/ui/vnc.c b/ui/vnc.c
> index 8ee39bc..bdec33a 100644
> --- a/ui/vnc.c
> +++ b/ui/vnc.c
> @@ -1936,7 +1936,10 @@ static void pixel_format_message (VncState *vs) {
>
>   static void vnc_dpy_setdata(DisplayState *ds)
>   {
> -    /* We don't have to do anything */
> +    VncDisplay *vd = ds->opaque;
> +
> +    *(vd->guest.ds) = *(ds->surface);
> +    vnc_dpy_update(ds, 0, 0, ds_get_width(ds), ds_get_height(ds));
>   }
>
>   static void vnc_colordepth(VncState *vs)