From 79a4466479fe050c2cee19179d85fd051f5011f5 Mon Sep 17 00:00:00 2001
From: Chris Young <chris@unsatisfactorysoftware.co.uk>
Date: Thu, 5 Feb 2015 18:51:41 +0000
Subject: Attempt to fix graphical corruption on OS3

---
 amiga/gui.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/amiga/gui.c b/amiga/gui.c
index 134d8a114..fe4d3c578 100644
--- a/amiga/gui.c
+++ b/amiga/gui.c
@@ -4660,6 +4660,10 @@ static void ami_do_redraw(struct gui_window_2 *gwin)
 
 		if(nsoption_bool(direct_render) == false)
 		{
+#ifndef __amigaos4__
+			/* Try to avoid some overprinting - might need glob->rp clearing instead */
+			ami_plot_clear_box(gwin->win->RPort, bbox);
+#endif
 			ami_do_redraw_tiled(gwin, true, hcurrent, vcurrent, width, height, hcurrent, vcurrent, bbox, &ctx);
 		}
 		else
-- 
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