From 418bc1014706f2f1997d1b91251f96da0fa4a3a5 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Sat, 10 Oct 2009 05:17:47 +0000
Subject: [PATCH] Default value for SGI swap control GL attribute should be -1.

Explicitly try to set it if you want a different value. Different glX
 implementations appear to have different defaults for this, and you can't
 query them for the current value.

--HG--
branch : SDL-1.2
---
 src/video/x11/SDL_x11video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/x11/SDL_x11video.c b/src/video/x11/SDL_x11video.c
index cbdf10dfa..e22839280 100644
--- a/src/video/x11/SDL_x11video.c
+++ b/src/video/x11/SDL_x11video.c
@@ -122,7 +122,7 @@ static SDL_VideoDevice *X11_CreateDevice(int devindex)
 		SDL_memset(device->gl_data, 0, (sizeof *device->gl_data));
 
 #if SDL_VIDEO_OPENGL_GLX
-		device->gl_data->sgi_swap_interval = 1;
+		device->gl_data->sgi_swap_interval = -1;
 #endif
 
 		/* Set the driver flags */