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/*
* ZamTube triode WDF distortion model
* 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 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 ZAMTUBEPLUGIN_HPP_INCLUDED
#define ZAMTUBEPLUGIN_HPP_INCLUDED
#include "DistrhoPlugin.hpp"
#include "triode.h"
#include "wdfcircuits.h"
START_NAMESPACE_DISTRHO
// -----------------------------------------------------------------------
template <int N> inline float faustpower(float x) { return powf(x,N); }
template <int N> inline double faustpower(double x) { return pow(x,N); }
template <int N> inline int faustpower(int x) { return faustpower<N/2>(x) * faustpower<N-N/2>(x); }
template <> inline int faustpower<0>(int) { return 1; }
template <> inline int faustpower<1>(int x) { return x; }
#define FAUSTFLOAT float
typedef long double quad;
#define TOLERANCE 1e-6
#define DANGER 1000.f
class ZamTubePlugin : public Plugin
{
public:
Triode v;
TubeStageCircuit ckt;
T e;
T ci;
T ck;
T co;
T ro;
T rp;
T rg;
T ri;
T rk;
float fConst0;
float fConst1;
float fConst2;
float fConst3;
float fRec0[4];
float fRec1[4];
float fRec2[4];
float fRec3[4];
float fRec4[4];
float fRec5[4];
float fRec6[4];
float fRec7[4];
float fRec8[4];
float fRec9[4];
float fRec10[4];
float fRec11[4];
float fRec12[4];
float fRec13[4];
float fConst4;
float fConst5;
float fRec14[4];
float fConst6;
float fRec15[4];
float fRec16[4];
float fRec17[4];
float fRec18[4];
float fRec19[4];
float fRec20[4];
float fRec21[4];
float fRec22[4];
float fRec23[4];
float fRec24[4];
float fSamplingFreq;
enum Parameters
{
paramTubedrive = 0,
paramBass,
paramMiddle,
paramTreble,
paramToneStack,
paramGain,
paramInsane,
paramCount
};
ZamTubePlugin();
protected:
// -------------------------------------------------------------------
// Information
const char* getLabel() const noexcept override
{
return "ZamTube";
}
const char* getDescription() const noexcept override
{
return "Wicked distortion effect.\n\
Wave digital filter physical model of a triode tube amplifier stage, with modelled tone stacks from real guitar amplifiers (thanks D. Yeh et al).";
}
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, 7, 0);
}
int64_t getUniqueId() const noexcept override
{
return d_cconst('Z', 'T', 'U', 'B');
}
// -------------------------------------------------------------------
// 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) || !std::isfinite(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 activate() override;
void run(const float** inputs, float** outputs, uint32_t frames) override;
// -------------------------------------------------------------------
private:
float tubedrive,bass,middle,treble,tonestack,mastergain,insane; //parameters
};
// -----------------------------------------------------------------------
END_NAMESPACE_DISTRHO
#endif // ZAMTUBE_HPP_INCLUDED
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