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From cf12dd3eb8a9c18fbccbe01cfcf8290d483becee Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Thu, 8 Feb 2018 17:50:25 +0100
Subject: [PATCH 11/27] vnc: factor out vnc_update_server_surface

RH-Author: Daniel P. Berrange <berrange@redhat.com>
Message-id: <20180208175041.5634-12-berrange@redhat.com>
Patchwork-id: 78952
O-Subject: [RHEL-7.5 qemu-kvm PATCH v1 11/27] vnc: factor out vnc_update_server_surface
Bugzilla: 1527405
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Gerd Hoffmann <kraxel@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>

From: Gerd Hoffmann <kraxel@redhat.com>

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-13-git-send-email-kraxel@redhat.com
(cherry picked from commit 453f842bc4cab49f10c267cff9ad3cf657265d49)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 ui/vnc.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/ui/vnc.c b/ui/vnc.c
index c3f29df..38e0f1a 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -613,6 +613,17 @@ void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y)
     return ptr;
 }
 
+static void vnc_update_server_surface(VncDisplay *vd)
+{
+    qemu_pixman_image_unref(vd->server);
+    vd->server = NULL;
+
+    vd->server = pixman_image_create_bits(VNC_SERVER_FB_FORMAT,
+                                          vnc_width(vd),
+                                          vnc_height(vd),
+                                          NULL, 0);
+}
+
 static void vnc_dpy_switch(DisplayChangeListener *dcl,
                            DisplaySurface *surface)
 {
@@ -621,19 +632,17 @@ static void vnc_dpy_switch(DisplayChangeListener *dcl,
     int width, height;
 
     vnc_abort_display_jobs(vd);
+    vd->ds = surface;
 
     /* server surface */
-    qemu_pixman_image_unref(vd->server);
-    vd->ds = surface;
-    width = vnc_width(vd);
-    height = vnc_height(vd);
-    vd->server = pixman_image_create_bits(VNC_SERVER_FB_FORMAT,
-                                          width, height, NULL, 0);
+    vnc_update_server_surface(vd);
 
     /* guest surface */
     qemu_pixman_image_unref(vd->guest.fb);
     vd->guest.fb = pixman_image_ref(surface->image);
     vd->guest.format = surface->format;
+    width = vnc_width(vd);
+    height = vnc_height(vd);
     memset(vd->guest.dirty, 0x00, sizeof(vd->guest.dirty));
     vnc_set_area_dirty(vd->guest.dirty, width, height, 0, 0,
                        width, height);
-- 
1.8.3.1