Added linear interpolation option for envelope random transform, fixes etc

Source/PS_Source/globals.h

@@ -302,3 +302,5 @@ inline void sanitizeTimeRange(double& t0, double& t1)
 	if (t1 - t0 < 0.001)
 		t1 = t0 + 0.001;
 }
+
+inline double fractpart(double x) { return x - (int)x; };

Source/PluginEditor.cpp

@@ -89,7 +89,8 @@ PaulstretchpluginAudioProcessorEditor::PaulstretchpluginAudioProcessorEditor(Pau
 		if (i == cpi_pitchshift)
 			group_id = 3;
 		if (i == cpi_freefilter_scaley || i == cpi_freefilter_shiftx || i == cpi_freefilter_shifty ||
-			i == cpi_freefilter_tilty)
+			i == cpi_freefilter_tilty || i == cpi_freefilter_randomy_amount || i == cpi_freefilter_randomy_numbands
+			|| i == cpi_freefilter_randomy_rate)
 			group_id = 8;
 		m_parcomps.back()->m_group_id = group_id;
 		addAndMakeVisible(m_parcomps.back().get());

Source/PluginProcessor.cpp

@@ -220,6 +220,8 @@ ValueTree PaulstretchpluginAudioProcessor::getStateTree(bool ignoreoptions, bool
 	storeToTreeProperties(paramtree, nullptr, getIntParameter(cpi_numharmonics));
 	storeToTreeProperties(paramtree, nullptr, m_outchansparam);
     storeToTreeProperties(paramtree, nullptr, m_inchansparam);
+	storeToTreeProperties(paramtree, nullptr, getIntParameter(cpi_freefilter_randomy_numbands));
+	storeToTreeProperties(paramtree, nullptr, getIntParameter(cpi_freefilter_randomy_rate));
     storeToTreeProperties(paramtree, nullptr, getBoolParameter(cpi_bypass_stretch));
     if (m_current_file != File() && ignorefile == false)
 	{
@@ -277,6 +279,8 @@ void PaulstretchpluginAudioProcessor::setStateFromTree(ValueTree tree)
 			getFromTreeProperties(tree, m_outchansparam);
             getFromTreeProperties(tree, m_inchansparam);
             getFromTreeProperties(tree, getBoolParameter(cpi_bypass_stretch));
+			getFromTreeProperties(tree, getIntParameter(cpi_freefilter_randomy_numbands));
+			getFromTreeProperties(tree, getIntParameter(cpi_freefilter_randomy_rate));
         }
 		int prebufamt = tree.getProperty("prebufamount", 2);
 		if (prebufamt == -1)

Source/envelope_component.cpp

@@ -231,6 +231,7 @@ void EnvelopeComponent::mouseDown(const MouseEvent & ev)
 		menu.addItem(1, "Reset");
 		menu.addItem(2, "Invert");
 		menu.addItem(3, "Wrap envelope X transform", true, m_envelope->m_transform_wrap_x);
+		menu.addItem(4, "Envelope Y random linear interpolation", true, m_envelope->m_transform_y_random_linear_interpolation);
 		int r = menu.show();
 		if (r == 1)
 		{
@@ -250,6 +251,10 @@ void EnvelopeComponent::mouseDown(const MouseEvent & ev)
 		{
 			toggleBool(m_envelope->m_transform_wrap_x);
 		}
+		if (r == 4)
+		{
+			toggleBool(m_envelope->m_transform_y_random_linear_interpolation);
+		}
 		repaint();
 		return;
 	}

Source/jcdp_envelope.h

@@ -226,6 +226,7 @@ public:
 			result.addChild(pt_tree, -1, nullptr);
 		}
 		result.setProperty("wrapxtransform", m_transform_wrap_x, nullptr);
+		result.setProperty("yrandlerp", m_transform_y_random_linear_interpolation, nullptr);
 		return result;
 	}
 	void restoreState(ValueTree state)
@@ -233,6 +234,7 @@ public:
 		if (state.isValid()==false)
             return;
 		m_transform_wrap_x = state.getProperty("wrapxtransform", false);
+		m_transform_y_random_linear_interpolation = state.getProperty("yrandlerp", false);
 		int numnodes = state.getNumChildren();
 		if (numnodes > 0)
 		{
@@ -574,6 +576,7 @@ public:
     double m_transform_y_tilt = 0.0;
 	double m_transform_y_random_amount = 0.2;
 	double m_transform_y_random_rate = 2.0;
+	bool m_transform_y_random_linear_interpolation = false;
 	int m_transform_y_random_bands = 32;
 	bool m_transform_wrap_x = false;
 	double m_min_pt_value = 0.0;
@@ -599,17 +602,31 @@ public:
         double tilted = shifted+tiltline;
 		if (m_transform_y_random_amount > 0.0)
 		{
-			
-			int tableindex = jlimit<int>(0,m_randbuf.size()-1, floor(x * (m_transform_y_random_bands)));
-			double randamt = jmap(m_randbuf[tableindex], 0.0, 1.0, -m_transform_y_random_amount, m_transform_y_random_amount);
-			tilted += randamt;
+			if (m_transform_y_random_linear_interpolation == false)
+			{
+				int tableindex = jlimit<int>(0, m_randbuf.size() - 1, floor(x * (m_transform_y_random_bands)));
+				double randamt = jmap(m_randbuf[tableindex], 0.0, 1.0, -m_transform_y_random_amount, m_transform_y_random_amount);
+				tilted += randamt;
+			}
+			else
+			{
+				double fracindex = x * m_transform_y_random_bands;
+				int tableindex0 = jlimit<int>(0, m_randbuf.size() - 1, floor(fracindex));
+				int tableindex1 = tableindex0 + 1;
+				double y0 = m_randbuf[tableindex0];
+				double y1 = m_randbuf[tableindex1];
+				double interpolated = y0 + (y1 - y0)*fractpart(fracindex);
+				double randamt = jmap(interpolated, 0.0, 1.0, -m_transform_y_random_amount, m_transform_y_random_amount);
+				tilted += randamt;
+			}
 		}
 		return jlimit(0.0,1.0,tilted);
 	}
 	bool isTransformed() const
 	{
 		return m_transform_x_shift != 0.0 || m_transform_y_shift != 0.0
-        || m_transform_y_scale!=1.0 || m_transform_y_sinus!=0.0 || m_transform_y_tilt!=0.0 || m_transform_y_random_amount!=0.0;
+        || m_transform_y_scale!=1.0 || m_transform_y_sinus!=0.0 || m_transform_y_tilt!=0.0 
+		|| m_transform_y_random_amount>0.0;
 	}
 	void updateMinMaxValues()
 	{