[gtk/egl-config-8888] wayland: Explicitly require RGBA8888

[Matthias Clasen <matthiasc src gnome org>]

commit bbea1cc841344c75ce8378537834a51d0baf5fc1
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 17 12:41:01 2019 -0400

    wayland: Explicitly require RGBA8888
    
    Its the format we expect to have. If we want to
    support 10-bit visuals at some point, that should
    be an explicit decision.

 gdk/wayland/gdkglcontext-wayland.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gdk/wayland/gdkglcontext-wayland.c b/gdk/wayland/gdkglcontext-wayland.c
index edeca4916c..40df428a38 100644
--- a/gdk/wayland/gdkglcontext-wayland.c
+++ b/gdk/wayland/gdkglcontext-wayland.c
@@ -391,13 +391,13 @@ find_eglconfig_for_surface (GdkSurface  *surface,
   attrs[i++] = EGL_RGB_BUFFER;
 
   attrs[i++] = EGL_RED_SIZE;
-  attrs[i++] = 1;
+  attrs[i++] = 8;
   attrs[i++] = EGL_GREEN_SIZE;
-  attrs[i++] = 1;
+  attrs[i++] = 8;
   attrs[i++] = EGL_BLUE_SIZE;
-  attrs[i++] = 1;
+  attrs[i++] = 8;
   attrs[i++] = EGL_ALPHA_SIZE;
-  attrs[i++] = 1;
+  attrs[i++] = 8;
 
   attrs[i++] = EGL_NONE;
   g_assert (i < MAX_EGL_ATTRS);