Preset preview WIP

Source/Common/AudioHelpers.cpp

@@ -1,191 +1,191 @@
-/*
-  ==============================================================================
-
-	AudioHelpers.cpp
-	Created: 16 Apr 2021 2:55:07pm
-	Author:  bkupe
-
-  ==============================================================================
-*/
-
-#include "Common/CommonIncludes.h"
-
-Point<float> DecibelsHelpers::start = Point<float>(-100, 0);
-Point<float> DecibelsHelpers::mid1 = Point<float>(-42, .14f);
-Point<float> DecibelsHelpers::mid2 = Point<float>(-18, .4f);
-Point<float> DecibelsHelpers::end = Point<float>(6, 1);
-
-
-DecibelFloatParameter::DecibelFloatParameter(const String& niceName, const String& description, float initValue) :
-	FloatParameter(niceName, description, initValue, 0, 1)
-{
-	decibels = DecibelsHelpers::valueToDecibels(value);
-	gain = DecibelsHelpers::valueToGain(value);
-}
-
-DecibelFloatParameter::~DecibelFloatParameter()
-{
-}
-
-void DecibelFloatParameter::setGain(float newGain)
-{
-	setValue(DecibelsHelpers::gainToValue(newGain));
-}
-
-void DecibelFloatParameter::setValueInternal(var& val)
-{
-	FloatParameter::setValueInternal(val);
-	decibels = DecibelsHelpers::valueToDecibels(value);
-	gain = DecibelsHelpers::valueToGain(value);
-}
-
-
-ControllableUI* DecibelFloatParameter::createDefaultUI(Array<Controllable*> controllables)
-{
-	return new DecibelSliderUI(this);
-}
-
-
-
-void DecibelsHelpers::init()
-{
-
-}
-
-float DecibelsHelpers::valueToDecibels(float val)
-{
-	//y is val and x is decibel
-	if (val <= mid1.y) return jmap<float>(val, start.y, mid1.y, start.x, mid1.x);
-	else if (val >= mid2.y) return jmap<float>(val, mid2.y, end.y, mid2.x, end.x);
-
-	return jmap<float>(val, mid1.y, mid2.y, mid1.x, mid2.x);
-}
-
-float DecibelsHelpers::decibelsToValue(float decibels)
-{
-	//y is val and x is decibel
-	float lowCurve = jmap<float>(decibels, start.x, mid1.x, start.y, mid1.y);
-	float highCurve = jmap<float>(decibels, mid2.x, end.x, mid2.y, end.y);
-
-	if (decibels <= mid1.x) return lowCurve;// jmap<float>(decibels, start.x, mid1.x, start.y, mid1.y);
-	else if (decibels >= mid2.x) return highCurve;// jmap<float>(decibels, mid2.x, end.x, mid2.y, end.y);
-
-	return jmap<float>(decibels, mid1.x, mid2.x, mid1.y, mid2.y);
-
-	//float w = jmap(decibels, mid1.x, mid2.x, 0.0f, 1.0f);
-	//float smoothness = 1;
-	//float sw = 1 / exp(-smoothness * (w - .5f));
-	//return lowCurve * (1 - sw) + highCurve * sw;
-
-	//float valAtDecLow0 = jmap<float>(0, start.x, mid1.x, start.y, mid1.y);
-	//float valAtDecHigh0 = jmap<float>(0, mid2.x, end.x, mid2.y, end.y);
-
-
-	//float p1 = (mid1.y - start.y) / (mid1.x - start.x);
-	//float p2 = (end.y - mid2.y) / (end.x - mid2.x);
-	//float a = (p2 - p1) / (mid2.x - mid1.x);
-	//float b = p1 - a * mid1.x;
-
-	//float c = mid1.y - a * mid1.x * mid1.x / 2 - b * mid1.x;
-	//float diffMid2 = mid2.y - (a * mid2.x * mid2.x / 2 + b * mid2.x + c);
-	//
-	//float rawResult = a * decibels * decibels / 2 + b * decibels + c;
-	//float result = (a * decibels + b) * decibels + 0;//jmap(rawResult, mid1.x, mid2.x, 0.f, 1.f);
-	//return result;
-}
-
-float DecibelsHelpers::valueToGain(float value)
-{
-	return Decibels::decibelsToGain(valueToDecibels(value), start.x);
-}
-
-float DecibelsHelpers::gainToValue(float gain)
-{
-	return decibelsToValue(Decibels::gainToDecibels(gain, start.x));
-}
-
-
-
-VolumeControl::VolumeControl(const String& name, bool hasRMS) :
-	ControllableContainer(name),
-	prevGain(1),
-	rms(nullptr),
-	computeRMS(nullptr),
-	rmsSampleCount(0),
-	rmsMax(0)
-{
-	editorIsCollapsed = true;
-
-	gain = new DecibelFloatParameter("Gain", "Gain for this");
-	addParameter(gain);
-	active = addBoolParameter("Active", "Fast way to mute this", true);
-	if (hasRMS)
-	{
-		computeRMS = addBoolParameter("Compute RMS", "Compute RMS for this", true);
-		rms = new DecibelFloatParameter("RMS", "RMS for this", 0);
-		addParameter(rms);
-		rms->setControllableFeedbackOnly(true);
-		rms->hideInRemoteControl = true; //hide by default
-		rms->defaultHideInRemoteControl = true; //hide by default
-	}
-}
-
-VolumeControl::~VolumeControl()
-{
-}
-
-float VolumeControl::getGain()
-{
-	if (active == nullptr || gain == nullptr) return 0;
-	return active->boolValue() ? gain->gain : 0;
-}
-
-void VolumeControl::resetGainAndActive()
-{
-	gain->resetValue();
-	active->resetValue();
-}
-
-void VolumeControl::applyGain(AudioSampleBuffer& buffer)
-{
-	float g = getGain();
-	buffer.applyGainRamp(0, buffer.getNumSamples(), prevGain, g);
-	prevGain = g;
-
-	updateRMS(buffer);
-}
-
-void VolumeControl::applyGain(int channel, AudioSampleBuffer& buffer)
-{
-	float g = getGain();
-	buffer.applyGainRamp(channel, 0, buffer.getNumSamples(), prevGain, g);
-	prevGain = g;
-
-	updateRMS(buffer, channel);
-}
-
-void VolumeControl::updateRMS(AudioSampleBuffer& buffer, int channel, int startSample, int numSamples)
-{
-	if (computeRMS != nullptr && !computeRMS->boolValue()) return;
-
-	if (numSamples == -1) numSamples = buffer.getNumSamples();
-
-	if (rms != nullptr)
-	{
-		if (channel >= 0) rmsMax = jmax(buffer.getRMSLevel(channel, startSample, numSamples), rmsMax);
-		else
-		{
-			for (int i = 0; i < buffer.getNumChannels(); i++) rmsMax = jmax(buffer.getRMSLevel(i, startSample, numSamples), rmsMax);
-		}
-
-		rmsSampleCount += buffer.getNumSamples();
-		if (rmsSampleCount > 3000) //~10fps @44100Hz
-		{
-			//float rmsGainVal = rms->gain + (rmsMax - rms->gain) * (rmsMax > rms->gain ? 1: .4f);
-			rms->setGain(rmsMax);
-
-			rmsSampleCount = 0;
-			rmsMax = 0;
-		}
-	}
+/*
+  ==============================================================================
+
+	AudioHelpers.cpp
+	Created: 16 Apr 2021 2:55:07pm
+	Author:  bkupe
+
+  ==============================================================================
+*/
+
+#include "Common/CommonIncludes.h"
+#include "AudioHelpers.h"
+
+Point<float> DecibelsHelpers::start = Point<float>(-100, 0);
+Point<float> DecibelsHelpers::mid1 = Point<float>(-42, .14f);
+Point<float> DecibelsHelpers::mid2 = Point<float>(-18, .4f);
+Point<float> DecibelsHelpers::end = Point<float>(6, 1);
+
+
+DecibelFloatParameter::DecibelFloatParameter(const String& niceName, const String& description, float initValue) :
+	FloatParameter(niceName, description, initValue, 0, 1)
+{
+	decibels = DecibelsHelpers::valueToDecibels(value);
+	gain = DecibelsHelpers::valueToGain(value);
+}
+
+DecibelFloatParameter::~DecibelFloatParameter()
+{
+}
+
+void DecibelFloatParameter::setGain(float newGain)
+{
+	setValue(DecibelsHelpers::gainToValue(newGain));
+}
+
+void DecibelFloatParameter::setValueInternal(var& val)
+{
+	FloatParameter::setValueInternal(val);
+	decibels = DecibelsHelpers::valueToDecibels(value);
+	gain = DecibelsHelpers::valueToGain(value);
+}
+
+ControllableUI* DecibelFloatParameter::createDefaultUI(Array<Controllable*> controllables)
+{
+	return new DecibelSliderUI(this);
+}
+
+
+
+void DecibelsHelpers::init()
+{
+
+}
+
+float DecibelsHelpers::valueToDecibels(float val)
+{
+	//y is val and x is decibel
+	if (val <= mid1.y) return jmap<float>(val, start.y, mid1.y, start.x, mid1.x);
+	else if (val >= mid2.y) return jmap<float>(val, mid2.y, end.y, mid2.x, end.x);
+
+	return jmap<float>(val, mid1.y, mid2.y, mid1.x, mid2.x);
+}
+
+float DecibelsHelpers::decibelsToValue(float decibels)
+{
+	//y is val and x is decibel
+	float lowCurve = jmap<float>(decibels, start.x, mid1.x, start.y, mid1.y);
+	float highCurve = jmap<float>(decibels, mid2.x, end.x, mid2.y, end.y);
+
+	if (decibels <= mid1.x) return lowCurve;// jmap<float>(decibels, start.x, mid1.x, start.y, mid1.y);
+	else if (decibels >= mid2.x) return highCurve;// jmap<float>(decibels, mid2.x, end.x, mid2.y, end.y);
+
+	return jmap<float>(decibels, mid1.x, mid2.x, mid1.y, mid2.y);
+
+	//float w = jmap(decibels, mid1.x, mid2.x, 0.0f, 1.0f);
+	//float smoothness = 1;
+	//float sw = 1 / exp(-smoothness * (w - .5f));
+	//return lowCurve * (1 - sw) + highCurve * sw;
+
+	//float valAtDecLow0 = jmap<float>(0, start.x, mid1.x, start.y, mid1.y);
+	//float valAtDecHigh0 = jmap<float>(0, mid2.x, end.x, mid2.y, end.y);
+
+
+	//float p1 = (mid1.y - start.y) / (mid1.x - start.x);
+	//float p2 = (end.y - mid2.y) / (end.x - mid2.x);
+	//float a = (p2 - p1) / (mid2.x - mid1.x);
+	//float b = p1 - a * mid1.x;
+
+	//float c = mid1.y - a * mid1.x * mid1.x / 2 - b * mid1.x;
+	//float diffMid2 = mid2.y - (a * mid2.x * mid2.x / 2 + b * mid2.x + c);
+	//
+	//float rawResult = a * decibels * decibels / 2 + b * decibels + c;
+	//float result = (a * decibels + b) * decibels + 0;//jmap(rawResult, mid1.x, mid2.x, 0.f, 1.f);
+	//return result;
+}
+
+float DecibelsHelpers::valueToGain(float value)
+{
+	return Decibels::decibelsToGain(valueToDecibels(value), start.x);
+}
+
+float DecibelsHelpers::gainToValue(float gain)
+{
+	return decibelsToValue(Decibels::gainToDecibels(gain, start.x));
+}
+
+
+
+VolumeControl::VolumeControl(const String& name, bool hasRMS) :
+	ControllableContainer(name),
+	prevGain(1),
+	rms(nullptr),
+	computeRMS(nullptr),
+	rmsSampleCount(0),
+	rmsMax(0)
+{
+	editorIsCollapsed = true;
+
+	gain = new DecibelFloatParameter("Gain", "Gain for this");
+	addParameter(gain);
+	active = addBoolParameter("Active", "Fast way to mute this", true);
+	if (hasRMS)
+	{
+		computeRMS = addBoolParameter("Compute RMS", "Compute RMS for this", true);
+		rms = new DecibelFloatParameter("RMS", "RMS for this", 0);
+		addParameter(rms);
+		rms->setControllableFeedbackOnly(true);
+		rms->hideInRemoteControl = true; //hide by default
+		rms->defaultHideInRemoteControl = true; //hide by default
+	}
+}
+
+VolumeControl::~VolumeControl()
+{
+}
+
+float VolumeControl::getGain()
+{
+	if (active == nullptr || gain == nullptr) return 0;
+	return active->boolValue() ? gain->gain : 0;
+}
+
+void VolumeControl::resetGainAndActive()
+{
+	gain->resetValue();
+	active->resetValue();
+}
+
+void VolumeControl::applyGain(AudioSampleBuffer& buffer)
+{
+	float g = getGain();
+	buffer.applyGainRamp(0, buffer.getNumSamples(), prevGain, g);
+	prevGain = g;
+
+	updateRMS(buffer);
+}
+
+void VolumeControl::applyGain(int channel, AudioSampleBuffer& buffer)
+{
+	float g = getGain();
+	buffer.applyGainRamp(channel, 0, buffer.getNumSamples(), prevGain, g);
+	prevGain = g;
+
+	updateRMS(buffer, channel);
+}
+
+void VolumeControl::updateRMS(AudioSampleBuffer& buffer, int channel, int startSample, int numSamples)
+{
+	if (computeRMS != nullptr && !computeRMS->boolValue()) return;
+
+	if (numSamples == -1) numSamples = buffer.getNumSamples();
+
+	if (rms != nullptr)
+	{
+		if (channel >= 0) rmsMax = jmax(buffer.getRMSLevel(channel, startSample, numSamples), rmsMax);
+		else
+		{
+			for (int i = 0; i < buffer.getNumChannels(); i++) rmsMax = jmax(buffer.getRMSLevel(i, startSample, numSamples), rmsMax);
+		}
+
+		rmsSampleCount += buffer.getNumSamples();
+		if (rmsSampleCount > 3000) //~10fps @44100Hz
+		{
+			//float rmsGainVal = rms->gain + (rmsMax - rms->gain) * (rmsMax > rms->gain ? 1: .4f);
+			rms->setGain(rmsMax);
+
+			rmsSampleCount = 0;
+			rmsMax = 0;
+		}
+	}
 }