diff options
Diffstat (limited to 'WebCore/platform/audio/Biquad.cpp')
| -rw-r--r-- | WebCore/platform/audio/Biquad.cpp | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/WebCore/platform/audio/Biquad.cpp b/WebCore/platform/audio/Biquad.cpp index 49f010b..20143e3 100644 --- a/WebCore/platform/audio/Biquad.cpp +++ b/WebCore/platform/audio/Biquad.cpp @@ -33,9 +33,8 @@ #include "Biquad.h" #include <algorithm> -#include <float.h> -#include <math.h> #include <stdio.h> +#include <wtf/MathExtras.h> #if OS(DARWIN) #include <Accelerate/Accelerate.h> @@ -197,7 +196,7 @@ void Biquad::setLowpassParams(double cutoff, double resonance) double d = sqrt((4.0 - sqrt(16.0 - 16.0 / (g * g))) / 2.0); // Compute biquad coefficients for lopass filter - double theta = M_PI * cutoff; + double theta = piDouble * cutoff; double sn = 0.5 * d * sin(theta); double beta = 0.5 * (1.0 - sn) / (1.0 + sn); double gamma = (0.5 + beta) * cos(theta); @@ -218,7 +217,7 @@ void Biquad::setHighpassParams(double cutoff, double resonance) double d = sqrt((4.0 - sqrt(16.0 - 16.0 / (g * g))) / 2.0); // Compute biquad coefficients for highpass filter - double theta = M_PI * cutoff; + double theta = piDouble * cutoff; double sn = 0.5 * d * sin(theta); double beta = 0.5 * (1.0 - sn) / (1.0 + sn); double gamma = (0.5 + beta) * cos(theta); @@ -233,7 +232,7 @@ void Biquad::setHighpassParams(double cutoff, double resonance) void Biquad::setLowShelfParams(double cutoff, double dbGain) { - double theta = M_PI * cutoff; + double theta = piDouble * cutoff; double A = pow(10.0, dbGain / 40.0); double S = 1.0; // filter slope (1.0 is max value) |