[base] Handle collapsed outlines to avoid undefined FT_MSB.

* src/base/ftoutln.c (FT_Outline_Get_Orientation): Update.
11 years ago · 28018d42a8
parent 4728993fa8
commit 28018d42a8
2 changed files with 10 additions and 0 deletions
--- a/6
+++ b/6
@ -1,3 +1,9 @@
+2014-08-11  Alexei Podtelezhnikov  <apodtele@gmail.com>
+
+	[base] Handle collapsed outlines to avoid undefined FT_MSB.
+
+	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Update.
+
 2014-08-11  Alexei Podtelezhnikov  <apodtele@gmail.com>

 	[base] Restore FT_MulFix inlining.
--- a/src/base/ftoutln.c
+++ b/src/base/ftoutln.c
@ -1045,6 +1045,10 @@

    FT_Outline_Get_CBox( outline, &cbox );

+    /* Handle collapsed outlines to avoid undefined FT_MSB. */
+    if ( cbox.xMin == cbox.xMax || cbox.yMin == cbox.yMax )
+      return FT_ORIENTATION_NONE;
+
    xshift = FT_MSB( FT_ABS( cbox.xMax ) | FT_ABS( cbox.xMin ) ) - 14;
    xshift = FT_MAX( xshift, 0 );