Fix for bathroom door opening crash in Operation Stealth's start.

svn-id: r32951

1 files changed, 11 insertions, 0 deletions

diff --git a/engines/cine/gfx.cpp b/engines/cine/gfx.cpp
index 47446f2410..2b7f3b8890 100644
--- a/engines/cine/gfx.cpp
+++ b/engines/cine/gfx.cpp
@@ -969,6 +969,7 @@ void OSRenderer::drawBackground() {
 
 /*! \brief Draw one overlay
  * \param it Overlay info
+ * \todo Add handling of type 22 overlays
  */
 void OSRenderer::renderOverlay(const Common::List<overlay>::iterator &it) {
 	int len;
@@ -979,6 +980,9 @@ void OSRenderer::renderOverlay(const Common::List<overlay>::iterator &it) {
 	switch (it->type) {
 	// color sprite
 	case 0:
+		if (objectTable[it->objIdx].frame < 0) {
+			break;
+		}
 		sprite = animDataTable + objectTable[it->objIdx].frame;
 		len = sprite->_realWidth * sprite->_height;
 		mask = new byte[len];
@@ -988,6 +992,13 @@ void OSRenderer::renderOverlay(const Common::List<overlay>::iterator &it) {
 		delete[] mask;
 		break;
 
+	// bitmap
+	case 4:
+		if (objectTable[it->objIdx].frame >= 0) {
+			FWRenderer::renderOverlay(it);
+		}
+		break;
+
 	// masked background
 	case 20:
 		assert(it->objIdx < NUM_MAX_OBJECT);