From a3ad8bb5412f47776285bfc954d2275f075c8796 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@gnome.org>
Date: Mon, 20 Jul 2009 23:38:36 +0200
Subject: [PATCH] Handle degenerate case in pixman_init_extents()

Create an empty region instead
---
 pixman/pixman-region.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pixman/pixman-region.c b/pixman/pixman-region.c
index a37d381..cb8f1aa 100644
--- a/pixman/pixman-region.c
+++ b/pixman/pixman-region.c
@@ -356,6 +356,11 @@ PREFIX (_init_rect) (region_type_t *	region,
 PIXMAN_EXPORT void
 PREFIX (_init_with_extents) (region_type_t *region, box_type_t *extents)
 {
+    if (extents->x1 >= extents->x2 || extents->y1 > extents->y2)
+    {
+        PREFIX (_init) (region);
+        return;
+    }
     region->extents = *extents;
 
     region->data = NULL;
-- 
2.7.4