From 243ea1fa290a919d5f0a07094782465f0ba08d7e Mon Sep 17 00:00:00 2001
From: Filippos Karapetis
Date: Wed, 4 Jul 2012 02:20:39 +0300
Subject: SCI: Add a check for invalid clip rectangles

Happens in QFG4, when starting a battle
---
 engines/sci/graphics/frameout.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/engines/sci/graphics/frameout.cpp b/engines/sci/graphics/frameout.cpp
index 450460023c..5b857fe3d8 100644
--- a/engines/sci/graphics/frameout.cpp
+++ b/engines/sci/graphics/frameout.cpp
@@ -722,6 +722,9 @@ void GfxFrameout::kernelFrameout() {
 					translatedClipRect = clipRect;
 					translatedClipRect.translate(it->upscaledPlaneRect.left, it->upscaledPlaneRect.top);
 				} else {
+					// QFG4 passes invalid rectangles when a battle is starting
+					if (!clipRect.isValidRect())
+						continue;
 					clipRect.clip(it->planeClipRect);
 					translatedClipRect = clipRect;
 					translatedClipRect.translate(it->planeRect.left, it->planeRect.top);
-- 
cgit v1.2.3