* src/base/ftcalc.c (FT_MulAddFix): Simplify 32-bit rounding.

2023-08-25 17:57:47 +00:00 · 2023-08-25 17:57:47 +00:00 · 0c817334b7
parent d42679b93d
commit 0c817334b7
1 changed files with 3 additions and 9 deletions
--- a/src/base/ftcalc.c
+++ b/src/base/ftcalc.c
@ -1070,9 +1070,6 @@
  {
    FT_UInt   i;
    FT_Int64  temp;
-#ifndef FT_INT64
-    FT_Int64  halfUnit;
-#endif


 #ifdef FT_INT64
@ -1117,13 +1114,10 @@
      FT_Add64( &temp, &multResult, &temp );
    }

-    /* Round value. */
-    halfUnit.hi = 0;
-    halfUnit.lo = 0x8000;
-    FT_Add64( &temp, &halfUnit, &temp );
+    /* Shift and round value. */
+    return (FT_Int32)( ( ( temp.hi << 16 ) | ( temp.lo >> 16 ) )
+                                     + ( 1 & ( temp.lo >> 15 ) ) );

-    return (FT_Int32)( ( (FT_Int32)( temp.hi & 0xFFFF ) << 16 ) |
-                                   ( temp.lo >> 16 )            );

 #endif /* !FT_INT64 */