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[base] Speed up emboldening.

* src/base/ftoutln.c (FT_Outline_EmboldenXY): Use `FT_Vector_NormLen'.

git/fs: mount .git/fs: mount/attach disallowed

--- a/ChangeLog

+++ b/ChangeLog

@@ -1,5 +1,11 @@

 2015-06-29  Alexei Podtelezhnikov <[email protected]>

+	[base] Speed up emboldening.

+

+	* src/base/ftoutln.c (FT_Outline_EmboldenXY): Use `FT_Vector_NormLen'.

+

+2015-06-29  Alexei Podtelezhnikov <[email protected]>

+

 	[base] Implement fast vector normalization.

 	The function uses Newton's iterations instead of dividing vector

--- a/src/base/ftoutln.c

+++ b/src/base/ftoutln.c

@@ -946,12 +946,7 @@

       /* compute incoming normalized vector */

       in.x = v_cur.x - v_prev.x;

       in.y = v_cur.y - v_prev.y;

-      l_in = FT_Vector_Length( &in );

-      if ( l_in )

-      {

-        in.x = FT_DivFix( in.x, l_in );

-        in.y = FT_DivFix( in.y, l_in );

-      }

+      l_in = FT_Vector_NormLen( &in );

       for ( n = first; n <= last; n++ )

       {

@@ -963,12 +958,7 @@

         /* compute outgoing normalized vector */

         out.x = v_next.x - v_cur.x;

         out.y = v_next.y - v_cur.y;

-        l_out = FT_Vector_Length( &out );

-        if ( l_out )

-        {

-          out.x = FT_DivFix( out.x, l_out );

-          out.y = FT_DivFix( out.y, l_out );

-        }

+        l_out = FT_Vector_NormLen( &out );

         d = FT_MulFix( in.x, out.x ) + FT_MulFix( in.y, out.y );