From 80f77282264afb1356351024b1f062b2824bba3b Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Thu, 25 Sep 2014 17:59:46 +0300
Subject: [PATCH] [util] Fix ansi output when surface is empty

---
 util/helper-cairo-ansi.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util/helper-cairo-ansi.cc b/util/helper-cairo-ansi.cc
index 376bf2b83..50f9eb446 100644
--- a/util/helper-cairo-ansi.cc
+++ b/util/helper-cairo-ansi.cc
@@ -63,10 +63,10 @@ helper_cairo_surface_write_to_ansi_stream (cairo_surface_t	*surface,
    * Find the tight image top/bottom and only print in between. */
 
   /* Use corner color as background color. */
-  uint32_t bg_color = * (uint32_t *) data;
+  uint32_t bg_color = data ? * (uint32_t *) data : 0;
 
   /* Drop first row while empty */
-  while (height) 
+  while (height)
   {
     unsigned int i;
     for (i = 0; i < width; i++)