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/*
Copyright (C) 2010-2012 Florian Jung
This file is part of flo's FM synth.
flo's FM synth 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.
flo's FM synth 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 flo's FM synth. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string>
#include <cstring>
#include <dlfcn.h>
#include <cmath>
#include "programs.h"
#include "globals.h"
#include "shared_object_manager.h"
using namespace std;
oscillator_t::oscillator_t()
{
phase=0;
fm_strength=NULL;
ksl=0;
ksr=0;
sync=false;
custom_wave=NULL;
}
oscillator_t& oscillator_t::operator=(const oscillator_t &that)
{
if (this!=&that)
{
this->output=that.output;
this->waveform=that.waveform;
this->factor=that.factor;
this->freq_env_amount=that.freq_env_amount;
this->freq_env=that.freq_env;
this->phase=that.phase;
this->tremolo_depth=that.tremolo_depth;
this->tremolo_lfo=that.tremolo_lfo;
this->vibrato_depth=that.vibrato_depth;
this->vibrato_lfo=that.vibrato_lfo;
this->custom_wave=that.custom_wave;
this->n_osc=that.n_osc;
this->ksl=that.ksl;
this->ksr=that.ksr;
this->sync=that.sync;
if (this->fm_strength)
delete [] this->fm_strength;
this->fm_strength=new fixed_t[n_osc];
memcpy(this->fm_strength, that.fm_strength, sizeof(*that.fm_strength)*n_osc);
return *this;
}
else
return *this;
}
program_t::program_t()
{
osc_settings=NULL;
env_settings=NULL;
filter_settings.enabled=false;
sync_factor=0;
n_osc=0;
pfactor.fm=NULL;
pfactor.out=NULL;
pfactor.freq_env_amount=NULL;
create_func=NULL;
dl_handle=NULL;
}
program_t::~program_t()
{
cleanup();
}
void program_t::cleanup()
{
if (osc_settings)
{
for (unsigned int i=0;i<n_osc;++i)
delete [] osc_settings[i].fm_strength;
delete [] osc_settings;
}
if (env_settings)
delete [] env_settings;
if (pfactor.out)
delete [] pfactor.out;
if (pfactor.freq_env_amount)
delete [] pfactor.freq_env_amount;
if (pfactor.fm)
{
for (unsigned int i=0;i<n_osc;++i)
delete [] pfactor.fm[i];
delete [] pfactor.fm;
}
if (dl_handle)
dlref_dec(dl_handle);
dl_handle=NULL;
create_func=NULL;
}
program_t& program_t::operator=(const program_t &that)
{
if (this!=&that)
{
unsigned int i;
this->cleanup();
for (i=0;i<(sizeof(controller_affects)/sizeof(*controller_affects));++i)
this->controller_affects[i]=that.controller_affects[i];
this->formula=that.formula;
this->n_osc=that.n_osc;
this->osc_settings=new oscillator_t[n_osc];
this->env_settings=new env_settings_t[n_osc];
memcpy(this->controller, that.controller, sizeof(that.controller));
copy(&that.osc_settings[0], &that.osc_settings[n_osc], this->osc_settings);
copy(&that.env_settings[0], &that.env_settings[n_osc], this->env_settings);
this->filter_settings=that.filter_settings;
this->sync_factor=that.sync_factor;
this->pfactor=that.pfactor;
this->pfactor.out=new param_factor_t [n_osc];
memcpy(this->pfactor.out, that.pfactor.out, sizeof(param_factor_t)*n_osc);
this->pfactor.freq_env_amount=new param_factor_t [n_osc];
memcpy(this->pfactor.freq_env_amount, that.pfactor.freq_env_amount, sizeof(param_factor_t)*n_osc);
this->pfactor.fm=new param_factor_t* [n_osc];
for (i=0;i<n_osc;++i)
{
this->pfactor.fm[i]=new param_factor_t [n_osc];
memcpy(this->pfactor.fm[i], that.pfactor.fm[i], sizeof(param_factor_t)*n_osc);
}
this->create_func=that.create_func;
this->dl_handle=that.dl_handle;
if (dl_handle)
dlref_inc(dl_handle);
return *this;
}
else
return *this;
}
void program_t::set_param(const parameter_t &p, fixed_t v) //ACHTUNG:
{ //wenn das verändert wird, muss auch Note::set_param verändert werden!
switch(p.par)
{
case ATTACK: env_settings[p.osc].attack=v*samp_rate >>SCALE; break;
case DECAY: env_settings[p.osc].decay=v*samp_rate >>SCALE; break;
case SUSTAIN: env_settings[p.osc].sustain=v; break;
case RELEASE: env_settings[p.osc].release=v*samp_rate >>SCALE; break;
case HOLD: env_settings[p.osc].hold=(v!=0); break;
case KSR: osc_settings[p.osc].ksr=float(v)/ONE; break;
case KSL: osc_settings[p.osc].ksl=float(v)/ONE; break;
case FACTOR: osc_settings[p.osc].factor=pow(2.0, (double)v/12.0/ONE)*ONE; break;
case MODULATION: osc_settings[p.osc].fm_strength[p.index]=v; break;
case OUTPUT: osc_settings[p.osc].output=v; break;
case TREMOLO: osc_settings[p.osc].tremolo_depth=v; break;
case TREM_LFO: osc_settings[p.osc].tremolo_lfo=v; break;
case VIBRATO: osc_settings[p.osc].vibrato_depth=v; break;
case VIB_LFO: osc_settings[p.osc].vibrato_lfo=v; break;
case WAVEFORM: osc_settings[p.osc].waveform=v; break;
case SYNC: osc_settings[p.osc].sync=(v!=0); break;
case FILTER_ENABLED: filter_settings.enabled=(v!=0); break;
case FILTER_ENV_AMOUNT: filter_settings.env_amount=float(v)/ONE; break;
case FILTER_ATTACK: filter_settings.env_settings.attack=v*samp_rate/filter_update_frames >>SCALE; break;
case FILTER_DECAY: filter_settings.env_settings.decay=v*samp_rate/filter_update_frames >>SCALE; break;
case FILTER_SUSTAIN: filter_settings.env_settings.sustain=v; break;
case FILTER_RELEASE: filter_settings.env_settings.release=v*samp_rate/filter_update_frames >>SCALE; break;
case FILTER_HOLD: filter_settings.env_settings.hold=(v!=0); break;
case FILTER_OFFSET: filter_settings.freqfactor_offset=float(v)/ONE; break;
case FILTER_RESONANCE: filter_settings.resonance=float(v)/ONE; break;
case FILTER_TREMOLO: filter_settings.trem_strength=v; break;
case FILTER_TREM_LFO: filter_settings.trem_lfo=v; break;
case SYNC_FACTOR: sync_factor=v; break;
case FREQ_ATTACK: osc_settings[p.osc].freq_env.attack=v*samp_rate >>SCALE; break;
case FREQ_DECAY: osc_settings[p.osc].freq_env.decay=v*samp_rate >>SCALE; break;
case FREQ_SUSTAIN: osc_settings[p.osc].freq_env.sustain=v; break;
case FREQ_RELEASE: osc_settings[p.osc].freq_env.release=v*samp_rate >>SCALE; break;
case FREQ_HOLD: osc_settings[p.osc].freq_env.hold=(v!=0); break;
case FREQ_ENV_AMOUNT: osc_settings[p.osc].freq_env_amount=double(v)/ONE; break;
default: throw string("trying to set an unknown parameter");
}
}
bool parameter_t::operator< (const struct parameter_t &b) const
{
if (par!=b.par) return (par < b.par);
else if (osc!=b.osc) return (osc < b.osc);
else if (index!=b.index) return (index < b.index);
else return false; //they're equal
}
fixed_t calc_pfactor(param_factor_t &formula, fixed_t vel)
{
return formula.offset + (formula.vel_amount * vel >>SCALE);
}
void init_default_program(program_t &p)
{
p.n_osc=1;
p.osc_settings=new oscillator_t[1];
p.env_settings=new env_settings_t[1];
p.osc_settings[0].n_osc=1;
p.osc_settings[0].fm_strength=new fixed_t[1];
p.osc_settings[0].factor=ONE;
p.osc_settings[0].fm_strength[0]=0;
p.osc_settings[0].ksl=0;
p.osc_settings[0].ksr=0;
p.osc_settings[0].output=ONE;
p.osc_settings[0].tremolo_depth=0;
p.osc_settings[0].vibrato_depth=0;
p.osc_settings[0].waveform=0;
p.env_settings[0].attack=0;
p.env_settings[0].decay=0;
p.env_settings[0].sustain=ONE;
p.env_settings[0].release=3*samp_rate;
p.env_settings[0].hold=true;
p.filter_settings.enabled=false;
p.pfactor.out=new param_factor_t [1];
p.pfactor.freq_env_amount=new param_factor_t [1];
p.pfactor.fm=new param_factor_t* [1];
p.pfactor.filter_env.offset=ONE;
p.pfactor.filter_env.vel_amount=0;
p.pfactor.filter_res.offset=ONE;
p.pfactor.filter_res.vel_amount=0;
p.pfactor.filter_offset.offset=ONE;
p.pfactor.filter_offset.vel_amount=0;
p.pfactor.out[0].offset=0;
p.pfactor.out[0].vel_amount=ONE;
p.pfactor.freq_env_amount[0].offset=ONE;
p.pfactor.freq_env_amount[0].vel_amount=0;
p.pfactor.fm[0]=new param_factor_t [1];
p.pfactor.fm[0][0].offset=ONE;
p.pfactor.fm[0][0].vel_amount=0;
}
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