[gtk+] wayland: Fully initialize the visual

[Matthias Clasen <matthiasc src gnome org>]

commit e48e29db3b26cd702812d8e105be597e242ec81f
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Mar 26 10:10:16 2016 -0400

    wayland: Fully initialize the visual
    
    The pixel details (mask, shift and precision) are supposed to
    be filled in for TrueColor visuals.

 gdk/wayland/gdkscreen-wayland.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/gdk/wayland/gdkscreen-wayland.c b/gdk/wayland/gdkscreen-wayland.c
index c146cd3..3620295 100644
--- a/gdk/wayland/gdkscreen-wayland.c
+++ b/gdk/wayland/gdkscreen-wayland.c
@@ -921,6 +921,8 @@ gdk_wayland_screen_list_visuals (GdkScreen *screen)
 #define GDK_TYPE_WAYLAND_VISUAL              (_gdk_wayland_visual_get_type ())
 #define GDK_WAYLAND_VISUAL(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WAYLAND_VISUAL, 
GdkWaylandVisual))
 
+/* Currently, the Wayland backend only ever uses ARGB8888.
+ */
 static GdkVisual *
 gdk_wayland_visual_new (GdkScreen *screen)
 {
@@ -930,6 +932,9 @@ gdk_wayland_visual_new (GdkScreen *screen)
   visual->screen = GDK_SCREEN (screen);
   visual->type = GDK_VISUAL_TRUE_COLOR;
   visual->depth = 32;
+  visual->red_mask = 0xff0000;
+  visual->green_mask = 0x00ff00;
+  visual->blue_mask = 0x0000ff;
   visual->bits_per_rgb = 8;
 
   return visual;