From: Matthieu Darbois <mayeut@users.noreply.github.com>
Date: Sat, 13 Dec 2014 10:27:21 +0000 (+0000)
Subject: [trunk] Speed-up opj_int_fix_mul by removing unneeded operation
X-Git-Tag: v2.1.1~22^2~166
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d0ce2ced53285dae4a1f3835f97ecead480ebdde;p=openjpeg

[trunk] Speed-up opj_int_fix_mul by removing unneeded operation

Update  issue 220
---

diff --git a/src/lib/openjp2/opj_intmath.h b/src/lib/openjp2/opj_intmath.h
index dc898953..f35e40ab 100644
--- 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) ;
 }