From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 14 Dec 2015 01:14:57 +0000 (+0200)
Subject: Monitor changes to the root window pixmap
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=74572308adfaf62f0669df4e2369e1b31203042d;p=geometrycompositor.git

Monitor changes to the root window pixmap
---

diff --git a/source/main.c b/source/main.c
index 36e8d28..a1d0f1c 100644
--- a/source/main.c
+++ b/source/main.c
@@ -816,16 +816,19 @@ void update_root_pixmap(Compositor *compositor, CompositedScreen *screen)
 	unsigned long length;
 	long *pixmap;
 
+	use_gl(compositor, screen);
+
+	if(screen->root_glx_pixmap)
+	{
+		glXDestroyPixmap(compositor->display, screen->root_glx_pixmap);
+		screen->root_glx_pixmap = 0;
+	}
+
 	XGetWindowProperty(compositor->display, screen->root, compositor->root_pmap_atom, 0, 1, False, XA_PIXMAP,
 		&prop_type, &prop_format, &length, &overflow, (unsigned char **)&pixmap);
 	if(prop_type!=XA_PIXMAP || prop_format!=32)
 	{
 		screen->root_pixmap = 0;
-		if(screen->root_glx_pixmap)
-		{
-			glXDestroyPixmap(compositor->display, screen->root_glx_pixmap);
-			screen->root_glx_pixmap = 0;
-		}
 		return;
 	}
 
@@ -1149,14 +1152,14 @@ void process_property_event(Compositor *compositor, XPropertyEvent *event)
 {
 	CompositedScreen *screen;
 
-	if(event->atom!=compositor->correction_atom)
-		return;
-
 	screen = find_screen_by_root(compositor, event->window);
 	if(!screen)
 		return;
 
-	update_geometry_correction(compositor, screen);
+	if(event->atom==compositor->correction_atom)
+		update_geometry_correction(compositor, screen);
+	else if(event->atom==compositor->root_pmap_atom)
+		update_root_pixmap(compositor, screen);
 }
 
 void process_damage_event(Compositor *compositor, XDamageNotifyEvent *event)