public void DrawSpectrum(
Rect r,
bool useLogScale,
float[] data,
float dBRange,
float samplerate,
float colR,
float colG,
float colB,
float colA,
float gainOffsetDB)
{
var xscale = ((data.Length - 2) * 2.0f) / samplerate;
var yscale = 1.0f / dBRange;
AudioCurveRendering.DrawCurve(
r,
delegate(float x)
{
var f = GUIHelpers.MapNormalizedFrequency(x, samplerate, useLogScale, true) * xscale;
var i = (int)Math.Floor(f);
var h = data[i] + ((data[i + 1] - data[i]) * (f - i));
var mag = h > 0.0 ? (20.0f * Math.Log10(h)) + gainOffsetDB : -120.0;
return((float)(yscale * mag));
},
new Color(colR, colG, colB, colA)
);
}
private void DrawFilterCurve(
Rect r,
float[] coeffs,
float lowGain,
float midGain,
float highGain,
Color color,
bool filled,
double samplerate,
double magScale)
{
var wm = (-2.0 * 3.1415926) / samplerate;
AudioCurveRendering.AudioCurveEvaluator d = delegate(float x)
{
var w = ComplexD.Exp(wm * GUIHelpers.MapNormalizedFrequency(x, samplerate, useLogScale, true));
var lpf = ComplexD.Pow(
((w * ((w * coeffs[0]) + coeffs[1])) + coeffs[2]) / ((w * ((w * coeffs[3]) + coeffs[4])) + 1.0f),
filterOrder
);
var bpf1 = ComplexD.Pow(
((w * ((w * coeffs[5]) + coeffs[6])) + coeffs[7]) / ((w * ((w * coeffs[8]) + coeffs[9])) + 1.0f),
filterOrder
);
var bpf2 = ComplexD.Pow(
((w * ((w * coeffs[10]) + coeffs[11])) + coeffs[12]) / ((w * ((w * coeffs[13]) + coeffs[14])) + 1.0f),
filterOrder
);
var hpf = ComplexD.Pow(
((w * ((w * coeffs[15]) + coeffs[16])) + coeffs[17]) / ((w * ((w * coeffs[18]) + coeffs[19])) + 1.0f),
filterOrder
);
var h = (lpf * lowGain).Mag2() + (bpf1 * bpf2 * midGain).Mag2() + (hpf * highGain).Mag2();
var 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 DrawFilterCurve(
Rect r,
float[] coeffs,
bool lowGain,
bool midGain,
bool highGain,
Color color,
bool useLogScale,
bool filled,
double masterGain,
double samplerate,
double magScale)
{
var wm = (-2.0f * 3.1415926) / samplerate;
var one = new ComplexD(1.0f, 0.0f);
AudioCurveRendering.AudioCurveEvaluator d = delegate(float x)
{
var w = ComplexD.Exp(wm * GUIHelpers.MapNormalizedFrequency(x, samplerate, useLogScale, true));
var hl = !lowGain
? one
: ((w * ((w * coeffs[0]) + coeffs[1])) + coeffs[2]) / ((w * ((w * coeffs[3]) + coeffs[4])) + 1.0f);
var hp = !midGain
? one
: ((w * ((w * coeffs[5]) + coeffs[6])) + coeffs[7]) / ((w * ((w * coeffs[8]) + coeffs[9])) + 1.0f);
var hh = !highGain
? one
: ((w * ((w * coeffs[10]) + coeffs[11])) + coeffs[12]) / ((w * ((w * coeffs[13]) + coeffs[14])) + 1.0f);
var h = hh * hp * hl;
var 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)
{
var wm = (-2.0f * 3.1415926) / samplerate;
var zero = new ComplexD(0.0f, 0.0f);
var one = new ComplexD(1.0f, 0.0f);
AudioCurveRendering.AudioCurveEvaluator d = delegate(float x)
{
var w = ComplexD.Exp(wm * GUIHelpers.MapNormalizedFrequency(x, samplerate, useLogScale, true));
var h = zero;
var num = numModes * 3;
for (var n = 0; n < num; n += 3)
{
h += (coeffs[n] * (one - (w * w))) / ((w * ((w * coeffs[n + 2]) + coeffs[n + 1])) + 1.0);
}
var 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)
{
var evt = Event.current;
var controlID = GUIUtility.GetControlID(FocusType.Passive);
var evtType = evt.GetTypeForControl(controlID);
r = AudioCurveRendering.BeginCurveFrame(r);
var thr = 4.0f;
var changed = false;
var x = evt.mousePosition.x - r.x;
if ((evtType == EventType.MouseDown) && r.Contains(evt.mousePosition) && (evt.button == 0))
{
var lf = (float)GUIHelpers.MapNormalizedFrequency(_lowFreq, samplerate, _useLogScale, false) * r.width;
var mf = (float)GUIHelpers.MapNormalizedFrequency(_midFreq, samplerate, _useLogScale, false) * r.width;
var hf = (float)GUIHelpers.MapNormalizedFrequency(_highFreq, samplerate, _useLogScale, false) * r.width;
var ld = Mathf.Abs(x - lf);
var md = Mathf.Abs(x - mf);
var hd = Mathf.Abs(x - hf);
var 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)
{
var 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)
{
var 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)
{
var evt = Event.current;
var controlID = GUIUtility.GetControlID(FocusType.Passive);
var evtType = evt.GetTypeForControl(controlID);
r = AudioCurveRendering.BeginCurveFrame(r);
var thr = 4.0f;
var changed = false;
var x = evt.mousePosition.x - r.x;
if ((evtType == EventType.MouseDown) && r.Contains(evt.mousePosition) && (evt.button == 0))
{
var lf = (float)GUIHelpers.MapNormalizedFrequency(lowFreq, samplerate, useLogScale, false) * r.width;
var 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)
{
var blend = plugin.IsPluginEditableAndEnabled() ? 1.0f : 0.5f;
// Mark bands (low, medium and high bands)
var lowColor = new Color(0.0f, 0.0f, 0.0f, blend);
var midColor = new Color(0.5f, 0.5f, 0.5f, blend);
var 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)
{
var 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);
}
