Direct3D video output. Fixed redraw when DirectDraw/Direct3D device is lost.

src/vid_et4000w32.c

@@ -965,11 +965,19 @@ void et4000w32p_speed_changed(void *p)
         svga_recalctimings(&et4000->svga);
 }
 
+void et4000w32p_force_redraw(void *p)
+{
+        et4000w32p_t *et4000w32p = (et4000w32p_t *)p;
+
+        et4000w32p->svga.fullchange = changeframecount;
+}
+
 device_t et4000w32p_device =
 {
         "Tseng Labs ET4000/w32p",
         et4000w32p_init,
         et4000w32p_close,
         et4000w32p_speed_changed,
+        et4000w32p_force_redraw,
         svga_add_status_info
 };