SCI: Add a check for invalid clip rectangles

Happens in QFG4, when starting a battle
scummvm · Jul 3, 2012 · 243ea1f · 243ea1f
1 parent 5d3e22a
commit 243ea1f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git 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);