From da72b8b5c732457ae115fa00a02569ddb42eff9c Mon Sep 17 00:00:00 2001
Message-Id: <da72b8b5c732457ae115fa00a02569ddb42eff9c.1425415444.git.jen@redhat.com>
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 19 Nov 2014 09:24:41 -0500
Subject: [CHANGE 1/8] implement vnc_dpy_setdata
To: rhvirt-patches@redhat.com,
jen@redhat.com
RH-Author: Gerd Hoffmann <kraxel@redhat.com>
Message-id: <1416389081-13656-2-git-send-email-kraxel@redhat.com>
Patchwork-id: 62464
O-Subject: [RHEL-6.7 qemu-kvm PATCH 1/1] implement vnc_dpy_setdata
Bugzilla: 1161084
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Markus Armbruster <armbru@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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 <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(cherry picked from commit 1d3323de5fe5656844ea57a16eb432f09a366140)
Signed-off-by: Jeff E. Nelson <jen@redhat.com>
---
vnc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/vnc.c b/vnc.c
index 4f685ac..fe03f55 100644
--- a/vnc.c
+++ b/vnc.c
@@ -2012,7 +2012,10 @@ 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)
--
2.1.0