From 00dae1dc99bd0d2eee2c6be250f29fc416498fad Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Tue, 30 Nov 2010 18:08:01 -0800
Subject: [PATCH] Fixed crash if the gesture coordinates go negative - FIXME:
 Should this protection be at a lower level?

---
 test/testgesture.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/testgesture.c b/test/testgesture.c
index 69ef17b33..0667c539e 100644
--- a/test/testgesture.c
+++ b/test/testgesture.c
@@ -81,8 +81,8 @@ void setpix(SDL_Surface *screen, float _x, float _y, unsigned int col)
   int y = (int)_y;
   float a;
   
-  if(x > screen->w) return;
-  if(y > screen->h) return;
+  if(x < 0 || x > screen->w) return;
+  if(y < 0 || y > screen->h) return;
 
   pixmem32 = (Uint32*) screen->pixels  + y*screen->pitch/BPP + x;