MOLOSS Code

/**************************************************************************
   Copyright (C) 2019 Arnaud Champenois arthelion@free.fr

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
**************************************************************************/

#pragma once
#include "../JuceLibraryCode/JuceHeader.h"

/*!
 * Here are all constants for parameters definition
 * 
 */
 
#define MOLOSS_VERSION "23.08.11"

constexpr float NoiseMaxGain = 3.0f;

constexpr float LFORamp = 0.2f; // In s
constexpr float LFOMaxSpeed = 10.0f; // In Hz
constexpr float LFOMaxDelay = 5.0f; // In s

constexpr float TVFLowestCutoffFrequency = 10.0f; // In Hz
constexpr float TVFHighestCutoffFrequency = 20500.0f; // In Hz
constexpr float TVFMaxCutoffPower = 3.0f; // same in log10(Hz/20)
constexpr float TVFMaxLowCutPower = 2.5f; // in log10(Hz/20)
constexpr float TVFDefaultResonance = (1.0f / MathConstants<float>::sqrt2);
constexpr float TVFKeyFollowMaxDepth = 0.04f; // in log10(Hz/20) per note
constexpr float TVFMaxResonance = 10.0f;
constexpr float TVFKeyFollowMaxResonance = 0.5f;

constexpr float TVAKeyFollowMaxDepth = 0.014f; // In level unity per note
constexpr float ADSRMinAttackRelease = 0.001f; // in s, to avoid plops

constexpr float ADSRAttackKFMaxDepth = 0.05f; // In s per note
constexpr float ADSRMaxVeloDepth = 1.5f; // We allow to saturate
constexpr float ADSRMaxRelease = 10.0f; // in seconds

constexpr float PitchMaxLFODepth = 5.0f; // In semitones
constexpr float PitchMaxADSRDepth = 12.0f; // In semitones

constexpr float ChorusMinDepth = 0.001f;
constexpr float ChorusMaxDepth = 0.075f;

constexpr float ChorusMinFreq = 0.0f; // in Hz
constexpr float ChorusMaxFreq = 10.0f; // in Hz
constexpr float ChorusFreqFactor = 1.001f; // between left & right LFO

constexpr float ChorusDefaultDelay = 0.004f; // in s

constexpr float MaxDelayTime = 1.0f; // s

// Adjust polyhony here
constexpr int POLYPHONY = 16;

// Number of voices.
// Careful : changing this doesn't automatically add tabs to the GUI !
// The automated gui is not coded...
constexpr int VCO_NUMBER = 4;

// Fake midi values to identify those as controllers, in order to simplify code
constexpr int AftrTouchCtrl = 254;
constexpr int PitchWheelCtrl = 255;
constexpr int ModWheelCtrl = 1;

// Random phase instability
// Sine component
constexpr double RndPhaseShiftPeriodMin = 13.0; // s for one sine drift period
constexpr double RndPhaseShiftPeriodMax = 30.0; // s for one sine drift period
constexpr double RndPhaseSinCoef = 0.001; // max modulation coefficient
// White noise component
constexpr double RndPhaseNoiseCoef = 0.005; // max modulation coefficient

constexpr double KFNoteSplit = 56.0;
/*!
 * Appends a counter to a given name
 * 
 * \param name The name
 * \param count The counter
 * \return <name><counter>
 */
inline std::string countedName(std::string name, int count) {
	std::ostringstream sstream;
	sstream << name << count;
	return sstream.str();
}

class MolossLogger {
#ifdef LOG_FILE
public:
	MolossLogger() :
		fl(File("D:/Temp/MOLOSS.log"), "Welcome to MOLOSS", 1000)
	{}

	void log(const String& str) {
		fl.logMessage(str);
	}

private:
	FileLogger fl;
#else
public:
	MolossLogger() {}
	void log(const String&) {
	}
#endif
};

namespace Moloss {

	constexpr std::array<const char*, 15> syncStringValues = { "1/32T", "1/32",  "1/32D",  "1/16T","1/16","1/16D",  "1/8T","1/8","1/8D",  "1/4T",  "1/4","1/4D", "1/2T",   "1/2","1/2D" };
	constexpr std::array<float, 15> conversionFactor =       {  12.0, 8.0, 16.0/3.0, 6.0, 4.0, 8.0/3.0, 3.0, 2.0, 4.0/3.0, 1.5, 1.0, 2.0/3.0, 0.75, 0.5, 1.0/3.0 };

	inline float getSyncFreq(float tempo, float normalizedValue, bool inverted) {
		if (inverted) normalizedValue = 1.0f - normalizedValue;
		int index;
		if (normalizedValue == 1.0f)
			index = 14;
		else
			index = floor(conversionFactor.size()*normalizedValue);

		return inverted? tempo / 60.0f*conversionFactor[index]: 60.0f / (tempo*conversionFactor[index]);
	}
}