From a38f7d9e689f0e12cb8eed6b96a140805b452ba1 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keithw@vmware.com>
Date: Mon, 20 Apr 2009 17:32:15 +0100
Subject: trivial/tri_viewport: add space==reset key

---
 progs/trivial/tri-viewport.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/progs/trivial/tri-viewport.c b/progs/trivial/tri-viewport.c
index c08089b9dd..37e424467b 100644
--- a/progs/trivial/tri-viewport.c
+++ b/progs/trivial/tri-viewport.c
@@ -72,7 +72,9 @@ static void Key(unsigned char key, int x, int y)
    case 'H':
       th -= 1.0;
       break;
-
+   case ' ':
+      tw = th = tx = ty = 0;
+      break;
    default:
       break;
    }
-- 
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