From c7a043cbf47dbafc4b75ff2dbb1cf304d41ac77d Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Mon, 23 Mar 2009 05:37:45 +0000
Subject: [PATCH] Date: Thu, 05 Feb 2009 17:27:54 +0100 From: Stefan Klug
 Subject: [SDL] SDL_SetVideoMode compatibility fix

SDL_SetVideoMode(0,0,0,flags) used to be valid in SDL 1.2
Attached is a patch to replicate this behaviour in SDL 1.3

Cheers Stefan
---
 src/SDL_compat.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/SDL_compat.c b/src/SDL_compat.c
index 88a16c5f1..a776b0cb1 100644
--- a/src/SDL_compat.c
+++ b/src/SDL_compat.c
@@ -494,6 +494,15 @@ SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags)
             return NULL;
         }
     }
+    
+    SDL_GetDesktopDisplayMode(&desktop_mode);
+
+    if (width == 0) {
+        width = desktop_mode.w;
+    }
+    if (height == 0) {
+        height = desktop_mode.h;
+    }
 
     /* See if we can simply resize the existing window and surface */
     if (SDL_ResizeVideoMode(width, height, bpp, flags) == 0) {
@@ -567,7 +576,6 @@ SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags)
     }
 
     /* Set up the desired display mode */
-    SDL_GetDesktopDisplayMode(&desktop_mode);
     desktop_format = desktop_mode.format;
     if (desktop_format && ((flags & SDL_ANYFORMAT)
                            || (bpp == SDL_BITSPERPIXEL(desktop_format)))) {