Microoptimization in ResampleEffect.

diff --git a/resample_effect.cpp b/resample_effect.cpp
index 1b74a965c6f60654967f5960fe3e69384256a78f..156098e993dbac47c2132c46dc7d1ed9348bb9c9 100644 (file)
--- a/resample_effect.cpp
+++ b/resample_effect.cpp
@@ -142,8 +142,9 @@ void normalize_sum(Tap<T>* vals, unsigned num)
                for (unsigned i = 0; i < num; ++i) {
                        sum += to_fp64(vals[i].weight);
                }
                for (unsigned i = 0; i < num; ++i) {
                        sum += to_fp64(vals[i].weight);
                }

+               double inv_sum = 1.0 / sum;

                for (unsigned i = 0; i < num; ++i) {
                for (unsigned i = 0; i < num; ++i) {

-                       vals[i].weight = from_fp64<T>(to_fp64(vals[i].weight) / sum);
+                       vals[i].weight = from_fp64<T>(to_fp64(vals[i].weight) * inv_sum);

                }
        }
 }
                }
        }
 }