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/*
* ZamGEQ31 31 band graphic equaliser
* Copyright (C) 2014 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 (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.
*/
#ifndef ZAMGEQ31PLUGIN_HPP_INCLUDED
#define ZAMGEQ31PLUGIN_HPP_INCLUDED
#include "DistrhoPlugin.hpp"
#define MAX_FILT 31
START_NAMESPACE_DISTRHO
// -----------------------------------------------------------------------
class ZamGEQ31Plugin : public Plugin
{
public:
enum Parameters
{
paramMaster = 0,
paramGain1,
paramGain2,
paramGain3,
paramGain4,
paramGain5,
paramGain6,
paramGain7,
paramGain8,
paramGain9,
paramGain10,
paramGain11,
paramGain12,
paramGain13,
paramGain14,
paramGain15,
paramGain16,
paramGain17,
paramGain18,
paramGain19,
paramGain20,
paramGain21,
paramGain22,
paramGain23,
paramGain24,
paramGain25,
paramGain26,
paramGain27,
paramGain28,
paramGain29,
paramCount
};
ZamGEQ31Plugin();
protected:
// -------------------------------------------------------------------
// Information
const char* getLabel() const noexcept override
{
return "ZamGEQ31";
}
const char* getDescription() const noexcept override
{
return "31 band graphic equaliser, good for eq of live spaces, removing unwanted noise from a track etc.";
}
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, 11, 0);
}
int64_t getUniqueId() const noexcept override
{
return d_cconst('Z', 'G', '3', '1');
}
// -------------------------------------------------------------------
// 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 double
sanitize_denormal(double v) {
if(!std::isnormal(v))
return 0.f;
return v;
}
static inline double
from_dB(double gdb) {
return (exp(gdb/20.f*log(10.f)));
}
static inline double
to_dB(double g) {
return (20.f*log10(g));
}
static inline int
sign(double x) {
return (x >= 0.f ? 1 : -1);
}
void activate() override;
void run(const float** inputs, float** outputs, uint32_t frames) override;
void geq(int i, float srate, float g);
double run_filter(int i, double in);
double omegaL[29], omegaU[29], k[29], v[29], a[29], cm[29][21], a0m[29][21];
int m[29];
double w11[29][21], w12[29][21], w21[29][21], w22[29][21];
// -------------------------------------------------------------------
private:
float gain[29], gainold[29], master; //parameters
};
// -----------------------------------------------------------------------
END_NAMESPACE_DISTRHO
#endif // ZAMGEQ31_HPP_INCLUDED
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