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/*
* ZamDynamicEQ
* Copyright (C) 2016 Damien Zammit <damien@zamaudio.com>
*
* 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 2 of
* the License, or 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.
*/
#ifndef ZAMDYNAMICEQPLUGIN_HPP_INCLUDED
#define ZAMDYNAMICEQPLUGIN_HPP_INCLUDED
#include "DistrhoPlugin.hpp"
#include <algorithm>
START_NAMESPACE_DISTRHO
#define MAX_SAMPLES 12
// -----------------------------------------------------------------------
class ZamDynamicEQPlugin : public Plugin
{
public:
enum Parameters
{
paramAttack = 0,
paramRelease,
paramKnee,
paramRatio,
paramThresh,
paramMaxBoostCut,
paramSlew,
paramSidechain,
paramToggleLow,
paramTogglePeak,
paramToggleHigh,
paramDetectFreq,
paramTargetFreq,
paramTargetWidth,
paramBoostCut,
paramControlGain,
paramCount
};
ZamDynamicEQPlugin();
protected:
// -------------------------------------------------------------------
// Information
const char* getLabel() const noexcept override
{
return "ZamDynamicEQ";
}
const char* getDescription() const noexcept override
{
return "Mono dynamic EQ";
}
const char* getMaker() const noexcept override
{
return "Damien Zammit";
}
const char* getHomePage() const noexcept override
{
return "http://www.zamaudio.com";
}
const char* getLicense() const noexcept override
{
return "GPL v2+";
}
uint32_t getVersion() const noexcept override
{
return d_version(3, 8, 0);
}
int64_t getUniqueId() const noexcept override
{
return d_cconst('Z', 'M', 'D', 'Q');
}
// -------------------------------------------------------------------
// Init
void initParameter(uint32_t index, Parameter& parameter) ;
void initProgramName(uint32_t index, String& programName) ;
// -------------------------------------------------------------------
// Internal data
float getParameterValue(uint32_t index) const override;
void setParameterValue(uint32_t index, float value) override;
void loadProgram(uint32_t index) override;
// -------------------------------------------------------------------
// Process
static inline float
sanitize_denormal(float v) {
if(!std::isnormal(v))
return 0.f;
return v;
}
static inline float
from_dB(float gdb) {
return (exp(gdb/20.f*log(10.f)));
}
static inline float
to_dB(float g) {
return (20.f*log10(g));
}
void peq(double G0, double G, double GB, double w0, double Dw,
double *a0, double *a1, double *a2, double *b0, double *b1, double *b2, double *gn);
void highshelfeq(double, double G, double, double w0, double, double q, double B[], double A[]);
void lowshelfeq(double, double G, double, double w0, double, double q, double B[], double A[]);
void run_comp(double input, double* output);
// -------------------------------------------------------------------
void activate() override;
void run(const float** inputs, float** outputs, uint32_t frames) override;
void initAudioPort(bool input, uint32_t index, AudioPort& port) override;
void run_highshelf(double input, double* output);
void run_lowshelf(double input, double* output);
void run_peq1(double input, double* output);
void run_peq2(double input, double* output);
// -------------------------------------------------------------------
private:
void reset_low(void);
void reset_high(void);
void reset_peak(void);
struct linear_svf {
float g, k;
float a[3];
float m[3];
float s[2][2];
};
struct linear_svf bandpass;
void linear_svf_set_params(struct linear_svf *self,
float sample_rate, float cutoff, float resonance);
void linear_svf_reset(struct linear_svf *self);
float run_linear_svf(struct linear_svf *self, int c, float in);
float attack,release,knee,ratio,thresdb,max,slewfactor,sidechain, toglow, togpeak, toghigh, detectfreq, targetfreq, targetwidth, boostcut, controlgain; //parameters
float oldL_yl, oldL_y1, oldL_yg;
double x1,x2,y1,y2;
double x1a,x2a,y1a,y2a;
double zln1,zln2,zld1,zld2;
double zhn1,zhn2,zhd1,zhd2;
double a0x,a1x,a2x,b0x,b1x,b2x,gainx;
double a0y,a1y,a2y,b0y,b1y,b2y,gainy;
double Bl[3];
double Al[3];
double Bh[3];
double Ah[3];
};
// -----------------------------------------------------------------------
END_NAMESPACE_DISTRHO
#endif
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