Added NULL pointer check to avoid crashes when initializing zapper with no ROM loaded.

src/drivers/Qt/input.cpp

@@ -1171,7 +1171,7 @@ void GetMouseData (uint32 (&d)[3])
 			b |= 0x02;
 		}
 	}
-	else
+	else if ( consoleWindow->viewport_GL )
 	{
 		consoleWindow->viewport_GL->getNormalizedCursorPos(nx,ny);
 

src/input/zapper.cpp

@@ -215,7 +215,7 @@ static INPUTC ZAPVSC={ReadZapperVS,0,StrobeZapperVS,UpdateZapper,ZapperFrapper,D
 INPUTC *FCEU_InitZapper(int w)
 {
 	memset(&ZD[w],0,sizeof(ZAPPER));
-	if(GameInfo->type == GIT_VSUNI)
+	if ( (GameInfo != NULL) && (GameInfo->type == GIT_VSUNI) )
 		return(&ZAPVSC);
 	else
 		return(&ZAPC);