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);
}
}
private void DrawFilterCurve(
Rect r,
float[] coeffs,
float lowGain, float midGain, float highGain,
Color color,
bool filled,
double samplerate,
double magScale)
{
double wm = -2.0 * 3.1415926 / samplerate;
AudioCurveRendering.AudioCurveEvaluator d = delegate(float x) {
MathHelpers.ComplexD w = MathHelpers.ComplexD.Exp(wm * GUIHelpers.MapNormalizedFrequency((double)x, samplerate, useLogScale, true));
MathHelpers.ComplexD lpf = MathHelpers.ComplexD.Pow((w * (w * coeffs[0] + coeffs[1]) + coeffs[2]) / (w * (w * coeffs[3] + coeffs[4]) + 1.0f), filterOrder);
MathHelpers.ComplexD bpf1 = MathHelpers.ComplexD.Pow((w * (w * coeffs[5] + coeffs[6]) + coeffs[7]) / (w * (w * coeffs[8] + coeffs[9]) + 1.0f), filterOrder);
MathHelpers.ComplexD bpf2 = MathHelpers.ComplexD.Pow((w * (w * coeffs[10] + coeffs[11]) + coeffs[12]) / (w * (w * coeffs[13] + coeffs[14]) + 1.0f), filterOrder);
MathHelpers.ComplexD hpf = MathHelpers.ComplexD.Pow((w * (w * coeffs[15] + coeffs[16]) + coeffs[17]) / (w * (w * coeffs[18] + coeffs[19]) + 1.0f), filterOrder);
double h = (lpf * lowGain).Mag2() + (bpf1 * bpf2 * midGain).Mag2() + (hpf * highGain).Mag2();
double mag = masterGain + 10.0 * Math.Log10(h);
return((float)(mag * magScale));
};
if (filled)
{
AudioCurveRendering.DrawFilledCurve(r, d, color);
}
else
{
AudioCurveRendering.DrawCurve(r, d, color);
}
}
public void DrawSpectrum(Rect r, bool useLogScale, float[] data, float dB_range, float samplerate, float col_r, float col_g, float col_b, float col_a, float gainOffset_dB)
{
float xscale = (float)(data.Length - 2) * 2.0f / samplerate;
float yscale = 1.0f / dB_range;
AudioCurveRendering.DrawCurve(
r,
delegate(float x)
{
double f = GUIHelpers.MapNormalizedFrequency((double)x, samplerate, useLogScale, true) * xscale;
int i = (int)Math.Floor(f);
double h = data[i] + (data[i + 1] - data[i]) * (f - i);
double mag = (h > 0.0) ? (20.0f * Math.Log10(h) + gainOffset_dB) : -120.0;
return((float)(yscale * mag));
},
new Color(col_r, col_g, col_b, col_a));
}
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);
}
}
public bool DrawControl(IAudioEffectPlugin plugin, Rect r, float samplerate)
{
Event evt = Event.current;
int controlID = GUIUtility.GetControlID(FocusType.Passive);
EventType evtType = evt.GetTypeForControl(controlID);
r = AudioCurveRendering.BeginCurveFrame(r);
float thr = 4.0f;
bool changed = false;
float x = evt.mousePosition.x - r.x;
if (evtType == EventType.MouseDown && r.Contains(evt.mousePosition) && evt.button == 0)
{
float lf = (float)GUIHelpers.MapNormalizedFrequency(lowFreq, samplerate, useLogScale, false) * r.width;
float mf = (float)GUIHelpers.MapNormalizedFrequency(midFreq, samplerate, useLogScale, false) * r.width;
float hf = (float)GUIHelpers.MapNormalizedFrequency(highFreq, samplerate, useLogScale, false) * r.width;
float ld = Mathf.Abs(x - lf);
float md = Mathf.Abs(x - mf);
float hd = Mathf.Abs(x - hf);
float d = ld;
dragOperation = DragOperation.Low;
if (md < d)
{
d = md;
dragOperation = DragOperation.Mid;
}
if (hd < d)
{
d = hd;
dragOperation = DragOperation.High;
}
GUIUtility.hotControl = controlID;
EditorGUIUtility.SetWantsMouseJumping(1);
evt.Use();
}
else if (evtType == EventType.MouseDrag && GUIUtility.hotControl == controlID)
{
switch (dragOperation)
{
case DragOperation.Low:
lowFreq = Mathf.Clamp((float)GUIHelpers.MapNormalizedFrequency(GUIHelpers.MapNormalizedFrequency(lowFreq, samplerate, useLogScale, false) + evt.delta.x / r.width, samplerate, useLogScale, true), 10.0f, samplerate * 0.5f);
if (evt.shift)
{
lowQ = Mathf.Clamp(lowQ - evt.delta.y * 0.05f, 0.01f, 10.0f);
}
else
{
lowGain = Mathf.Clamp(lowGain - evt.delta.y * 0.5f, -100.0f, 100.0f);
}
break;
case DragOperation.Mid:
midFreq = Mathf.Clamp((float)GUIHelpers.MapNormalizedFrequency(GUIHelpers.MapNormalizedFrequency(midFreq, samplerate, useLogScale, false) + evt.delta.x / r.width, samplerate, useLogScale, true), 10.0f, samplerate * 0.5f);
if (evt.shift)
{
midQ = Mathf.Clamp(midQ - evt.delta.y * 0.05f, 0.01f, 10.0f);
}
else
{
midGain = Mathf.Clamp(midGain - evt.delta.y * 0.5f, -100.0f, 100.0f);
}
break;
case DragOperation.High:
highFreq = Mathf.Clamp((float)GUIHelpers.MapNormalizedFrequency(GUIHelpers.MapNormalizedFrequency(highFreq, samplerate, useLogScale, false) + evt.delta.x / r.width, samplerate, useLogScale, true), 10.0f, samplerate * 0.5f);
if (evt.shift)
{
highQ = Mathf.Clamp(highQ - evt.delta.y * 0.05f, 0.01f, 10.0f);
}
else
{
highGain = Mathf.Clamp(highGain - evt.delta.y * 0.5f, -100.0f, 100.0f);
}
break;
}
changed = true;
evt.Use();
}
else if (evtType == EventType.MouseUp && evt.button == 0 && GUIUtility.hotControl == controlID)
{
GUIUtility.hotControl = 0;
EditorGUIUtility.SetWantsMouseJumping(0);
evt.Use();
}
if (Event.current.type == EventType.Repaint)
{
float blend = plugin.IsPluginEditableAndEnabled() ? 1.0f : 0.5f;
// Mark bands (low, medium and high bands)
DrawBandSplitMarker(plugin, r, (float)GUIHelpers.MapNormalizedFrequency(lowFreq, samplerate, useLogScale, false) * r.width, thr, GUIUtility.hotControl == controlID && dragOperation == DragOperation.Low, new Color(0, 0, 0, blend));
DrawBandSplitMarker(plugin, r, (float)GUIHelpers.MapNormalizedFrequency(midFreq, samplerate, useLogScale, false) * r.width, thr, GUIUtility.hotControl == controlID && dragOperation == DragOperation.Mid, new Color(0.5f, 0.5f, 0.5f, blend));
DrawBandSplitMarker(plugin, r, (float)GUIHelpers.MapNormalizedFrequency(highFreq, samplerate, useLogScale, false) * r.width, thr, GUIUtility.hotControl == controlID && dragOperation == DragOperation.High, new Color(1.0f, 1.0f, 1.0f, blend));
const float dbRange = 40.0f;
const float magScale = 1.0f / dbRange;
float[] coeffs;
plugin.GetFloatBuffer("Coeffs", out coeffs, 15);
// Draw filled curve
DrawFilterCurve(
r,
coeffs,
true, true, true,
ScaleAlpha(AudioCurveRendering.kAudioOrange, blend),
useLogScale,
false,
masterGain,
samplerate,
magScale);
if (GUIUtility.hotControl == controlID)
{
DrawFilterCurve(
r,
coeffs,
dragOperation == DragOperation.Low,
dragOperation == DragOperation.Mid,
dragOperation == DragOperation.High,
new Color(1.0f, 1.0f, 1.0f, 0.2f * blend),
useLogScale,
true,
masterGain,
samplerate,
magScale);
}
if (showSpectrum)
{
int specLen = (int)r.width;
float[] spec;
plugin.GetFloatBuffer("InputSpec", out spec, specLen);
DrawSpectrum(r, useLogScale, spec, dbRange, samplerate, 0.3f, 1.0f, 0.3f, 0.5f * blend, 0.0f);
plugin.GetFloatBuffer("OutputSpec", out spec, specLen);
DrawSpectrum(r, useLogScale, spec, dbRange, samplerate, 1.0f, 0.3f, 0.3f, 0.5f * blend, 0.0f);
}
GUIHelpers.DrawFrequencyTickMarks(r, samplerate, useLogScale, new Color(1.0f, 1.0f, 1.0f, 0.3f * blend));
}
AudioCurveRendering.EndCurveFrame();
return(changed);
}
public bool DrawControl(IAudioEffectPlugin plugin, Rect r, float samplerate)
{
Event evt = Event.current;
int controlID = GUIUtility.GetControlID(FocusType.Passive);
EventType evtType = evt.GetTypeForControl(controlID);
r = AudioCurveRendering.BeginCurveFrame(r);
float thr = 4.0f;
bool changed = false;
float x = evt.mousePosition.x - r.x;
if (evtType == EventType.MouseDown && r.Contains(evt.mousePosition) && evt.button == 0)
{
float lf = (float)GUIHelpers.MapNormalizedFrequency(lowFreq, samplerate, useLogScale, false) * r.width;
float hf = (float)GUIHelpers.MapNormalizedFrequency(highFreq, samplerate, useLogScale, false) * r.width;
dragOperation = DragOperation.Mid;
if (x < lf + thr)
{
dragOperation = DragOperation.Low;
}
else if (x > hf - thr)
{
dragOperation = DragOperation.High;
}
GUIUtility.hotControl = controlID;
EditorGUIUtility.SetWantsMouseJumping(1);
evt.Use();
}
else if (evtType == EventType.MouseDrag && GUIUtility.hotControl == controlID)
{
if (dragOperation == DragOperation.Low || dragOperation == DragOperation.Mid)
{
lowFreq = Mathf.Clamp((float)GUIHelpers.MapNormalizedFrequency(GUIHelpers.MapNormalizedFrequency(lowFreq, samplerate, useLogScale, false) + evt.delta.x / r.width, samplerate, useLogScale, true), 10.0f, highFreq);
}
if (dragOperation == DragOperation.Low)
{
lowGain = Mathf.Clamp(lowGain - evt.delta.y * 0.5f, -100.0f, 100.0f);
}
if (dragOperation == DragOperation.Mid)
{
midGain = Mathf.Clamp(midGain - evt.delta.y * 0.5f, -100.0f, 100.0f);
}
if (dragOperation == DragOperation.Mid || dragOperation == DragOperation.High)
{
highFreq = Mathf.Clamp((float)GUIHelpers.MapNormalizedFrequency(GUIHelpers.MapNormalizedFrequency(highFreq, samplerate, useLogScale, false) + evt.delta.x / r.width, samplerate, useLogScale, true), lowFreq, samplerate * 0.5f);
}
if (dragOperation == DragOperation.High)
{
highGain = Mathf.Clamp(highGain - evt.delta.y * 0.5f, -100.0f, 100.0f);
}
changed = true;
evt.Use();
}
else if (evtType == EventType.MouseUp && evt.button == 0 && GUIUtility.hotControl == controlID)
{
GUIUtility.hotControl = 0;
EditorGUIUtility.SetWantsMouseJumping(0);
evt.Use();
}
if (Event.current.type == EventType.Repaint)
{
float blend = plugin.IsPluginEditableAndEnabled() ? 1.0f : 0.5f;
// Mark bands (low, medium and high bands)
Color lowColor = new Color(0.0f, 0.0f, 0.0f, blend);
Color midColor = new Color(0.5f, 0.5f, 0.5f, blend);
Color highColor = new Color(1.0f, 1.0f, 1.0f, blend);
DrawBandSplitMarker(plugin, r, (float)GUIHelpers.MapNormalizedFrequency(lowFreq, samplerate, useLogScale, false) * r.width, thr, GUIUtility.hotControl == controlID && (dragOperation == DragOperation.Low || dragOperation == DragOperation.Mid), lowColor);
DrawBandSplitMarker(plugin, r, (float)GUIHelpers.MapNormalizedFrequency(highFreq, samplerate, useLogScale, false) * r.width, thr, GUIUtility.hotControl == controlID && (dragOperation == DragOperation.High || dragOperation == DragOperation.Mid), highColor);
const float dbRange = 40.0f;
const float magScale = 1.0f / dbRange;
float[] liveData;
plugin.GetFloatBuffer("LiveData", out liveData, 6);
float[] coeffs;
plugin.GetFloatBuffer("Coeffs", out coeffs, 20);
if (GUIUtility.hotControl == controlID)
{
DrawFilterCurve(
r,
coeffs,
(dragOperation == DragOperation.Low) ? Mathf.Pow(10.0f, 0.05f * lowGain) : 0.0f,
(dragOperation == DragOperation.Mid) ? Mathf.Pow(10.0f, 0.05f * midGain) : 0.0f,
(dragOperation == DragOperation.High) ? Mathf.Pow(10.0f, 0.05f * highGain) : 0.0f,
new Color(1.0f, 1.0f, 1.0f, 0.2f * blend),
true,
samplerate,
magScale);
}
DrawFilterCurve(r, coeffs, Mathf.Pow(10.0f, 0.05f * lowGain) * liveData[0], 0.0f, 0.0f, lowColor, false, samplerate, magScale);
DrawFilterCurve(r, coeffs, 0.0f, Mathf.Pow(10.0f, 0.05f * midGain) * liveData[1], 0.0f, midColor, false, samplerate, magScale);
DrawFilterCurve(r, coeffs, 0.0f, 0.0f, Mathf.Pow(10.0f, 0.05f * highGain) * liveData[2], highColor, false, samplerate, magScale);
DrawFilterCurve(
r,
coeffs,
Mathf.Pow(10.0f, 0.05f * lowGain) * liveData[0],
Mathf.Pow(10.0f, 0.05f * midGain) * liveData[1],
Mathf.Pow(10.0f, 0.05f * highGain) * liveData[2],
ScaleAlpha(AudioCurveRendering.kAudioOrange, 0.5f),
false,
samplerate,
magScale);
DrawFilterCurve(
r,
coeffs,
Mathf.Pow(10.0f, 0.05f * lowGain),
Mathf.Pow(10.0f, 0.05f * midGain),
Mathf.Pow(10.0f, 0.05f * highGain),
AudioCurveRendering.kAudioOrange,
false,
samplerate,
magScale);
if (showSpectrum)
{
int specLen = (int)r.width;
float[] spec;
plugin.GetFloatBuffer("InputSpec", out spec, specLen);
DrawSpectrum(r, useLogScale, spec, dbRange, samplerate, 0.3f, 1.0f, 0.3f, 0.5f * blend, 0.0f);
plugin.GetFloatBuffer("OutputSpec", out spec, specLen);
DrawSpectrum(r, useLogScale, spec, dbRange, samplerate, 1.0f, 0.3f, 0.3f, 0.5f * blend, 0.0f);
}
GUIHelpers.DrawFrequencyTickMarks(r, samplerate, useLogScale, new Color(1.0f, 1.0f, 1.0f, 0.3f * blend));
}
AudioCurveRendering.EndCurveFrame();
return(changed);
}