diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/lpfilter.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Alc/lpfilter.c b/Alc/lpfilter.c index 2496f007..9f65cf3b 100644 --- a/Alc/lpfilter.c +++ b/Alc/lpfilter.c @@ -212,10 +212,9 @@ static void prewarp( double *a0, double *a1, double *a2, double fc, double fs) { - double wp, pi; + static const double pi = 3.141592653589793238; - pi = 4.0 * atan(1.0); - wp = 2.0 * fs * tan(pi * fc / fs); + double wp = 2.0 * fs * tan(pi * fc / fs); *a2 = (*a2) / (wp * wp); *a1 = (*a1) / wp; |