From 8c2b816fc5bf9d30138ac068d1665e473c7cb4bf Mon Sep 17 00:00:00 2001
From: Sebastian Krzyszkowiak <dos@dosowisko.net>
Date: Wed, 24 Oct 2018 16:37:48 +0200
Subject: [PATCH] SDL: set a hint to not bypass the window compositor
Without that, window effects in KWin get suspended as soon as any
qemu-sdl window becomes visible. While the SDL default makes sense
for games, it's not really suitable for QEMU.
Signed-off-by: Sebastian Krzyszkowiak <dos@dosowisko.net>
Message-id: 20181024143748.4425-1-dos@dosowisko.net
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
ui/sdl2.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/ui/sdl2.c b/ui/sdl2.c
index 2696b95c79..a10b6e3a08 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -786,6 +786,9 @@ static void sdl2_display_init(DisplayState *ds, DisplayOptions *o)
SDL_GetError());
exit(1);
}
+#ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */
+ SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0");
+#endif
SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1");
memset(&info, 0, sizeof(info));
SDL_VERSION(&info.version);