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Diffstat (limited to 'plugins/ZamDynamicEQ/ZamDynamicEQPlugin.hpp')
-rw-r--r-- | plugins/ZamDynamicEQ/ZamDynamicEQPlugin.hpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/plugins/ZamDynamicEQ/ZamDynamicEQPlugin.hpp b/plugins/ZamDynamicEQ/ZamDynamicEQPlugin.hpp new file mode 100644 index 0000000..9187526 --- /dev/null +++ b/plugins/ZamDynamicEQ/ZamDynamicEQPlugin.hpp @@ -0,0 +1,185 @@ +/* + * 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, 7, 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 |