# HG changeset patch
# User Sam Lantinga <slouken@libsdl.org>
# Date 1043555418 0
# Node ID be6495850a626a3d1e29714acefaa320d8a54d3b
# Parent  70fa3e48939975cc45390c48085f5e679b4dd92b
If a double-buffered surface was requested, and a plain hardware surface
was returned, we should create a shadow surface.

diff -r 70fa3e489399 -r be6495850a62 src/video/SDL_video.c
--- a/src/video/SDL_video.c	Tue Jan 21 09:36:41 2003 +0000
+++ b/src/video/SDL_video.c	Sun Jan 26 04:30:18 2003 +0000
@@ -836,7 +836,10 @@
 		   as soon as they are performed, so we need to buffer them
 		 */
 	     (   ((flags&SDL_HWSURFACE) == SDL_SWSURFACE) &&
-				(SDL_VideoSurface->flags&SDL_HWSURFACE))
+				(SDL_VideoSurface->flags&SDL_HWSURFACE)) ||
+	     (   (flags&SDL_DOUBLEBUF) &&
+				(SDL_VideoSurface->flags&SDL_HWSURFACE) &&
+				!(SDL_VideoSurface->flags&SDL_DOUBLEBUF))
 	     ) ) {
 		SDL_CreateShadowSurface(bpp);
 		if ( SDL_ShadowSurface == NULL ) {