[cff] Optimize by using `FT_MulDiv'.

Suggested by Alexei. * src/cff/cf2font.c (cf2_computeDarkening): Do it.
11 years ago · 89a94d4212
parent 85ee27ae93
commit 89a94d4212
2 changed files with 10 additions and 3 deletions
--- a/7
+++ b/7
@ -1,3 +1,10 @@
+2014-02-12  Dave Arnold  <darnold@adobe.com>
+
+	[cff] Optimize by using `FT_MulDiv'.
+	Suggested by Alexei.
+
+	* src/cff/cf2font.c (cf2_computeDarkening): Do it.
+
 2014-02-12  Werner Lemberg  <wl@gnu.org>

 	Fix Savannah bug #41465.
--- a/src/cff/cf2font.c
+++ b/src/cff/cf2font.c
@ -167,7 +167,7 @@
        if ( !xdelta )
          goto Try_x3;

-        *darkenAmount = FT_MulFix( x, FT_DivFix( ydelta, xdelta ) ) +
+        *darkenAmount = FT_MulDiv( x, ydelta, xdelta ) +
                          FT_DivFix( cf2_intToFixed( y1 ), ppem );
      }

@ -184,7 +184,7 @@
          if ( !xdelta )
            goto Try_x4;

-          *darkenAmount = FT_MulFix( x, FT_DivFix( ydelta, xdelta ) ) +
+          *darkenAmount = FT_MulDiv( x, ydelta, xdelta ) +
                            FT_DivFix( cf2_intToFixed( y2 ), ppem );
        }
      }
@ -202,7 +202,7 @@
          if ( !xdelta )
            goto Use_y4;

-          *darkenAmount = FT_MulFix( x, FT_DivFix( ydelta, xdelta ) ) +
+          *darkenAmount = FT_MulDiv( x, ydelta, xdelta ) +
                            FT_DivFix( cf2_intToFixed( y3 ), ppem );
        }
      }