From 935d3bb4254365e557642b2713eca8b31ab3eb86 Mon Sep 17 00:00:00 2001
From: Torbjörn Andersson
Date: Wed, 24 May 2006 21:04:44 +0000
Subject: The AGI engine's save/load dialog dirties the entire screen thirteen
 times each iteration of the loop, causing a serious slowdown on my computer.
 It empathically should not be doing that, of course, but to safe-guard
 against such patological cases, if the entire screen is dirtied even once we
 can set _forceFull to true.

svn-id: r22616
---
 backends/sdl/graphics.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'backends')

diff --git a/backends/sdl/graphics.cpp b/backends/sdl/graphics.cpp
index b733921b65..8baeb94ab8 100644
--- a/backends/sdl/graphics.cpp
+++ b/backends/sdl/graphics.cpp
@@ -907,6 +907,11 @@ void OSystem_SDL::addDirtyRect(int x, int y, int w, int h) {
 	}
 #endif
 
+	if (w == width && h == height) {
+		_forceFull = true;
+		return;
+	}
+
 	if (w > 0 && h > 0) {
 		SDL_Rect *r = &_dirtyRectList[_numDirtyRects++];
 
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