public void DrawFilterCurve(
Rect r,
float[] coeffs,
bool lowGain, bool midGain, bool highGain,
Color color,
bool useLogScale,
bool filled,
double masterGain,
double samplerate,
double magScale)
{
double wm = -2.0f * 3.1415926 / samplerate;
ComplexD one = new ComplexD(1.0f, 0.0f);
AudioCurveRendering.AudioCurveEvaluator d = delegate(float x)
{
ComplexD w = ComplexD.Exp(wm * GUIHelpers.MapNormalizedFrequency((double)x, samplerate, useLogScale, true));
ComplexD hl = (!lowGain) ? one : (w * (w * coeffs[0] + coeffs[1]) + coeffs[2]) / (w * (w * coeffs[3] + coeffs[4]) + 1.0f);
ComplexD hp = (!midGain) ? one : (w * (w * coeffs[5] + coeffs[6]) + coeffs[7]) / (w * (w * coeffs[8] + coeffs[9]) + 1.0f);
ComplexD hh = (!highGain) ? one : (w * (w * coeffs[10] + coeffs[11]) + coeffs[12]) / (w * (w * coeffs[13] + coeffs[14]) + 1.0f);
ComplexD h = hh * hp * hl;
double mag = masterGain + 10.0 * Math.Log10(h.Mag2());
return((float)(mag * magScale));
};
if (filled)
{
AudioCurveRendering.DrawFilledCurve(r, d, color);
}
else
{
AudioCurveRendering.DrawCurve(r, d, color);
}
}
public void DrawFilterCurve(
Rect r,
float[] coeffs,
Color color,
int numModes,
bool useLogScale,
bool filled,
double samplerate,
double magScale)
{
double wm = -2.0f * 3.1415926 / samplerate;
ComplexD zero = new ComplexD(0.0f, 0.0f);
ComplexD one = new ComplexD(1.0f, 0.0f);
AudioCurveRendering.AudioCurveEvaluator d = delegate(float x)
{
ComplexD w = ComplexD.Exp(wm * GUIHelpers.MapNormalizedFrequency((double)x, samplerate, useLogScale, true));
ComplexD h = zero;
int num = numModes * 3;
for (int n = 0; n < num; n += 3)
{
h += coeffs[n] * (one - w * w) / (w * (w * coeffs[n + 2] + coeffs[n + 1]) + 1.0);
}
double mag = 10.0 * Math.Log10(h.Mag2());
return((float)(mag * magScale));
};
if (filled)
{
AudioCurveRendering.DrawFilledCurve(r, d, color);
}
else
{
AudioCurveRendering.DrawCurve(r, d, color);
}
}
