Correctly close last contour in case of overflow

diff --git a/libass/ass_drawing.c b/libass/ass_drawing.c
index fec9de2f671134b72d6d90430f8f06e5a0a418ac..f94d0e494234f5a9fe41db3dcc4e73de938e2aae 100644 (file)
--- a/libass/ass_drawing.c
+++ b/libass/ass_drawing.c
@@ -58,8 +58,11 @@ static inline void drawing_add_point(ASS_Drawing *drawing,
 static inline void drawing_close_shape(ASS_Drawing *drawing)
 {
     FT_Outline *ol = &drawing->outline;
-    if (ol->n_contours == SHRT_MAX)
+    if (ol->n_contours == SHRT_MAX) {
+        if (ol->n_points)
+            ol->contours[ol->n_contours] = ol->n_points - 1;
         return;
+    }
 
     if (ol->n_contours >= drawing->max_contours) {
         drawing->max_contours *= 2;