[gtk+] rendernode: Use ceilf() on the size of the cairo surface

[Benjamin Otte <otte src gnome org>]

commit f4c4ab6ab152ebf4b963c7dc4be6af5718d3961b
Author: Benjamin Otte <otte redhat com>
Date:   Tue Nov 1 03:40:01 2016 +0100

    rendernode: Use ceilf() on the size of the cairo surface
    
    Bounds sizes are floats, so round up to the next integer so we end up
    with enough space to draw.

 gsk/gskrendernode.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gsk/gskrendernode.c b/gsk/gskrendernode.c
index 6d2cf87..85cf246 100644
--- a/gsk/gskrendernode.c
+++ b/gsk/gskrendernode.c
@@ -49,6 +49,8 @@
 
 #include <graphene-gobject.h>
 
+#include <math.h>
+
 #include <gobject/gvaluecollector.h>
 
 /**
@@ -1416,8 +1418,8 @@ gsk_render_node_get_draw_context (GskRenderNode *node)
       node->surface = gsk_renderer_create_cairo_surface (node->renderer,
                                                          node->opaque ? CAIRO_FORMAT_RGB24
                                                                       : CAIRO_FORMAT_ARGB32,
-                                                         node->bounds.size.width,
-                                                         node->bounds.size.height);
+                                                         ceilf (node->bounds.size.width),
+                                                         ceilf (node->bounds.size.height));
     }
 
   res = cairo_create (node->surface);