# HG changeset patch
# User Sam Lantinga <slouken@libsdl.org>
# Date 1141920754 0
# Node ID cf23b92602aad84d71da04610c9506faec91650e
# Parent  8f3e602904d1c3a17be54224a64bee3b294366cc
Don't crash if SDL_Flip() is called with an OpenGL mode set

diff -r 8f3e602904d1 -r cf23b92602aa src/video/SDL_video.c
--- a/src/video/SDL_video.c	Thu Mar 09 15:11:15 2006 +0000
+++ b/src/video/SDL_video.c	Thu Mar 09 16:12:34 2006 +0000
@@ -1008,6 +1008,10 @@
 	SDL_VideoDevice *video = current_video;
 	SDL_VideoDevice *this = current_video;
 
+	if ( (screen->flags & (SDL_OPENGL | SDL_OPENGLBLIT)) == SDL_OPENGL ) {
+		SDL_SetError("OpenGL active, use SDL_GL_SwapBuffers()");
+		return;
+	}
 	if ( screen == SDL_ShadowSurface ) {
 		/* Blit the shadow surface using saved mapping */
 		SDL_Palette *pal = screen->format->palette;