Fix Savannah bug #44412 (part 1).

* src/base/ftstroke.c (ft_stroker_inside): Handle near U-turns.
10 years ago · 6b832c872d
parent eee7d8baa1
commit 6b832c872d
2 changed files with 9 additions and 1 deletions
--- a/6
+++ b/6
@ -1,3 +1,9 @@
+2015-03-10  Alexei Podtelezhnikov <apodtele@gmail.com>
+
+	Fix Savannah bug #44412 (part 1).
+
+	* src/base/ftstroke.c (ft_stroker_inside): Handle near U-turns.
+
 2015-03-10  Werner Lemberg  <wl@gnu.org>

 	[base] Rename `FT_Bitmap_New' to `FT_Bitmap_Init'.
--- a/src/base/ftstroke.c
+++ b/src/base/ftstroke.c
@ -999,7 +999,9 @@

    /* Only intersect borders if between two lineto's and both */
    /* lines are long enough (line_length is zero for curves). */
-    if ( !border->movable || line_length == 0 )
+    /* Also avoid U-turns of nearly 180 degree.                */
+    if ( !border->movable || line_length == 0  ||
+         theta > 0x59C000 || theta < -0x59C000 )
      intersect = FALSE;
    else
    {