[trunk] Speed-up opj_int_fix_mul by removing unneeded operation

Update issue 220
2014-12-13 10:27:21 +00:00 · 2014-12-13 10:27:21 +00:00 · d0ce2ced53
parent e05d2901ec
commit d0ce2ced53
1 changed files with 1 additions and 1 deletions
--- a/src/lib/openjp2/opj_intmath.h
+++ b/src/lib/openjp2/opj_intmath.h
@ -166,7 +166,7 @@ Multiply two fixed-precision rational numbers.
 */
 static INLINE OPJ_INT32 opj_int_fix_mul(OPJ_INT32 a, OPJ_INT32 b) {
    OPJ_INT64 temp = (OPJ_INT64) a * (OPJ_INT64) b ;
-    temp += temp & 4096;
+    temp += 4096;
    return (OPJ_INT32) (temp >> 13) ;
 }