private void DrawCurve(Rect r, float[] curve, float yoffset, float yscale, Color col, float labeloffset)
{
int numsamples = curve.Length - 1; // the last sample in buffer is counter for how much we could read
float transitionPixels = 30.0f;
float x0 = 1.0f - ((float)curve[numsamples] / (float)curve.Length);
float xr = transitionPixels / r.width;
float xscale = numsamples - 2;
float thr_dB = -120.0f;
float thr_lin = 20.0f * Mathf.Pow(10.0f, thr_dB * 0.05f);
col.a /= xr;
float peakVal = -100000.0f, peakPos = -1000000.0f;
AudioCurveRendering.DrawFilledCurve(
r,
delegate(float x, out Color color)
{
float f = Mathf.Clamp(x * xscale, 0.0f, xscale);
color = col;
color.a = col.a * Mathf.Clamp(x - x0, 0, xr);
int i = (int)Mathf.Floor(f);
float mag = curve[i] + (curve[i + 1] - curve[i]) * (f - i);
float mag_dB = (mag < thr_lin) ? thr_dB : (20.0f * Mathf.Log10(mag));
float pos = (mag_dB - yoffset) * yscale;
peakVal = Mathf.Max(peakVal, mag_dB);
peakPos = Mathf.Max(peakPos, pos);
return(pos);
}
);
peakPos = r.y + r.height * (0.5f - 0.5f * peakPos);
if (peakPos >= r.y && peakPos <= r.y + r.height)
{
var col2 = new Color(col.r, col.g, col.b, 0.7f);
GUIHelpers.DrawLine(r.x, peakPos, r.x + r.width, peakPos, col2);
GUIHelpers.DrawText(r.x + labeloffset - 30, peakPos + 6, 60, string.Format("{0:F1} dB", peakVal), col2);
}
}
public void 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);
if (evtType == EventType.MouseDown && r.Contains(evt.mousePosition) && evt.button == 0)
{
float ofs, rofs;
plugin.GetFloatParameter(DragParams[(int)DragOperation.Offset], out ofs);
plugin.GetFloatParameter(DragParams[(int)DragOperation.RandomOffset], out rofs);
float x = r.x + r.width * (ofs - rofs);
float mindist = Mathf.Abs(x - evt.mousePosition.x);
dragOperation = DragOperation.RandomOffset;
x = r.x;
for (DragOperation i = DragOperation.Offset; i <= DragOperation.RandomWindowLen; i++)
{
float value;
plugin.GetFloatParameter(DragParams[(int)i], out value);
x += r.width * value;
float dx = Mathf.Abs(x - evt.mousePosition.x);
if (dx < mindist)
{
mindist = dx;
dragOperation = i;
}
}
GUIUtility.hotControl = controlID;
EditorGUIUtility.SetWantsMouseJumping(1);
evt.Use();
}
if (evtType == EventType.MouseDrag && GUIUtility.hotControl == controlID)
{
if (dragOperation != DragOperation.None)
{
float value;
plugin.GetFloatParameter(DragParams[(int)dragOperation], out value);
value = Mathf.Clamp(value + ((dragOperation == DragOperation.RandomOffset) ? -evt.delta.x : evt.delta.x) * 0.001f, 0.0f, 1.0f);
plugin.SetFloatParameter(DragParams[(int)dragOperation], value);
evt.Use();
}
}
else if (evtType == EventType.MouseUp && GUIUtility.hotControl == controlID)
{
dragOperation = DragOperation.None;
GUIUtility.hotControl = 0;
EditorGUIUtility.SetWantsMouseJumping(0);
evt.Use();
}
else if (Event.current.type == EventType.Repaint)
{
float blend = plugin.IsPluginEditableAndEnabled() ? 1.0f : 0.5f;
int numsamples = (int)r.width;
float[] wave1; plugin.GetFloatBuffer("Waveform0", out wave1, numsamples);
float[] wave2; plugin.GetFloatBuffer("Waveform1", out wave2, numsamples);
float ofs; plugin.GetFloatParameter(DragParams[(int)DragOperation.Offset], out ofs);
float rofs; plugin.GetFloatParameter(DragParams[(int)DragOperation.RandomOffset], out rofs);
float wlen; plugin.GetFloatParameter(DragParams[(int)DragOperation.WindowLen], out wlen);
float rwlen; plugin.GetFloatParameter(DragParams[(int)DragOperation.RandomWindowLen], out rwlen);
float shape; plugin.GetFloatParameter("Shape", out shape);
float useSample; plugin.GetFloatParameter("Use Sample", out useSample);
m_Wave1Color.a = blend;
m_Wave2Color.a = blend;
m_Wave3Color.a = blend;
m_Wave4Color.a = blend;
var r2 = new Rect(r.x, r.y, r.width, r.height * 0.5f);
DrawCurve(r2, wave1, 1.0f, m_Wave1Color, m_Wave2Color, m_Wave3Color, m_Wave4Color, 90, rofs, ofs, wlen, rwlen, shape);
r2.y += r2.height;
DrawCurve(r2, wave2, 1.0f, m_Wave1Color, m_Wave2Color, m_Wave3Color, m_Wave4Color, 150, rofs, ofs, wlen, rwlen, shape);
float x1 = r.x + r.width * (ofs - rofs);
float x2 = r.x + r.width * ofs;
float x3 = x2 + r.width * wlen;
float x4 = x3 + r.width * rwlen;
GUIHelpers.DrawLine(x1, r.y, x1, r.y + r.height, m_Wave1Color);
GUIHelpers.DrawLine(x2, r.y, x2, r.y + r.height, m_Wave2Color);
GUIHelpers.DrawLine(x3, r.y, x3, r.y + r.height, m_Wave3Color);
GUIHelpers.DrawLine(x4, r.y, x4, r.y + r.height, m_Wave4Color);
string name = "Sample: " + Marshal.PtrToStringAnsi(Granulator_GetSampleName((int)useSample));
GUIHelpers.DrawText(r2.x + 5, r2.y - 5, r2.width, name, Color.white);
}
AudioCurveRendering.EndCurveFrame();
}
