Don't ignore trailing empty line

Trailing \N is effectively ignored, but
\N\N should still yield an empty line.

diff --git a/libass/ass_render.c b/libass/ass_render.c
index 1edb9aef70ce41250199b868df3c8b74db275f56..ca89e764060eba39ad1829cd54cc7e9a71bf0747 100644 (file)
--- a/libass/ass_render.c
+++ b/libass/ass_render.c
@@ -1361,7 +1361,7 @@ static void measure_text(ASS_Renderer *render_priv)
     text_info->height = 0.;
     for (i = 0; i < text_info->length + 1; ++i) {
         if ((i == text_info->length) || text_info->glyphs[i].linebreak) {
-            if (empty_line && cur_line > 0 && last && i < text_info->length) {
+            if (empty_line && cur_line > 0 && last) {
                 max_asc = d6_to_double(last->asc) / 2.0;
                 max_desc = d6_to_double(last->desc) / 2.0;
             }
@@ -1371,16 +1371,17 @@ static void measure_text(ASS_Renderer *render_priv)
             cur_line++;
             max_asc = max_desc = 0.;
             empty_line = 1;
-        } else
-            empty_line = 0;
+        }
         if (i < text_info->length) {
             GlyphInfo *cur = text_info->glyphs + i;
             if (d6_to_double(cur->asc) > max_asc)
                 max_asc = d6_to_double(cur->asc);
             if (d6_to_double(cur->desc) > max_desc)
                 max_desc = d6_to_double(cur->desc);
-            if (cur->symbol != '\n' && cur->symbol != 0)
+            if (cur->symbol != '\n' && cur->symbol != 0) {
+                empty_line = 0;
                 last = cur;
+            }
         }
     }
     text_info->height +=