From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: "Jan Alexander Steffens (heftig)" <jan.steffens@gmail.com>
Date: Tue, 31 Aug 2021 22:40:44 +0000
Subject: [PATCH] SDL-1.2.15-no-default-backing-store

Do not harness backing store by default

xorg-server 1.15 enables backing store if composite extension is enabled
(default settings). Harnessing backing store through compositor leads to
tearing effect.

This patch reverts default harnessing backing store to conditional use if
SDL_VIDEO_X11_BACKINGSTORE environment variable exists.

<https://bugzilla.libsdl.org/show_bug.cgi?id=2383>
<https://bugzilla.redhat.com/show_bug.cgi?id=1073057>
---
 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 bbf0d5d0ffc9..c365e7a2ab72 100644
--- a/src/video/x11/SDL_x11video.c
+++ b/src/video/x11/SDL_x11video.c
@@ -1093,7 +1093,7 @@ static int X11_CreateWindow(_THIS, SDL_Surface *screen,
 		}
 	}
 
-#if 0 /* This is an experiment - are the graphics faster now? - nope. */
+#if 1 /* This is an experiment - are the graphics faster now? - nope. */
 	if ( SDL_getenv("SDL_VIDEO_X11_BACKINGSTORE") )
 #endif
 	/* Cache the window in the server, when possible */
