static void activateNotch_iir(LADSPA_Handle instance) {
Notch_iir *plugin_data = (Notch_iir *)instance;
iir_stage_t*first = plugin_data->first;
iirf_t*iirf1 = plugin_data->iirf1;
iirf_t*iirf2 = plugin_data->iirf2;
float lfc = plugin_data->lfc;
long sample_rate = plugin_data->sample_rate;
iir_stage_t*second = plugin_data->second;
float ufc = plugin_data->ufc;
ufc = (*(plugin_data->center) - *(plugin_data->width)*0.5f)/(float)sample_rate;
lfc = (*(plugin_data->center) + *(plugin_data->width)*0.5f)/(float)sample_rate;
first = init_iir_stage(IIR_STAGE_LOWPASS,10,3,2);
second = init_iir_stage(IIR_STAGE_HIGHPASS,10,3,2);
iirf1 = init_iirf_t(first);
iirf2 = init_iirf_t(second);
chebyshev(iirf1, first, 2*CLAMP((int)(*(plugin_data->stages)),1,10), IIR_STAGE_LOWPASS, ufc, 0.5f);
chebyshev(iirf2, second, 2*CLAMP((int)(*(plugin_data->stages)),1,10), IIR_STAGE_HIGHPASS, lfc, 0.5f);
plugin_data->first = first;
plugin_data->iirf1 = iirf1;
plugin_data->iirf2 = iirf2;
plugin_data->lfc = lfc;
plugin_data->sample_rate = sample_rate;
plugin_data->second = second;
plugin_data->ufc = ufc;
}
static void activateBandpass_iir(LADSPA_Handle instance) {
Bandpass_iir *plugin_data = (Bandpass_iir *)instance;
iir_stage_t*first = plugin_data->first;
iir_stage_t*gt = plugin_data->gt;
iirf_t*iirf = plugin_data->iirf;
float lfc = plugin_data->lfc;
long sample_rate = plugin_data->sample_rate;
iir_stage_t*second = plugin_data->second;
float ufc = plugin_data->ufc;
ufc = (*(plugin_data->center) + *(plugin_data->width)*0.5f)/(float)sample_rate;
lfc = (*(plugin_data->center) - *(plugin_data->width)*0.5f)/(float)sample_rate;
first = init_iir_stage(IIR_STAGE_LOWPASS,10,3,2);
second = init_iir_stage(IIR_STAGE_HIGHPASS,10,3,2);
gt = init_iir_stage(IIR_STAGE_BANDPASS,20,3,2);
iirf = init_iirf_t(gt);
chebyshev(iirf, first, 2*CLAMP((int)(*(plugin_data->stages)),1,10), IIR_STAGE_LOWPASS, ufc, 0.5f);
chebyshev(iirf, second, 2*CLAMP((int)(*(plugin_data->stages)),1,10), IIR_STAGE_HIGHPASS, lfc, 0.5f);
combine_iir_stages(IIR_STAGE_BANDPASS, gt, first, second,0,0);
plugin_data->first = first;
plugin_data->gt = gt;
plugin_data->iirf = iirf;
plugin_data->lfc = lfc;
plugin_data->sample_rate = sample_rate;
plugin_data->second = second;
plugin_data->ufc = ufc;
}
static void activateHighpass_iir(LADSPA_Handle instance) {
Highpass_iir *plugin_data = (Highpass_iir *)instance;
iir_stage_t*gt = plugin_data->gt;
iirf_t*iirf = plugin_data->iirf;
long sample_rate = plugin_data->sample_rate;
gt = init_iir_stage(IIR_STAGE_HIGHPASS,10,3,2);
iirf = init_iirf_t(gt);
chebyshev(iirf, gt, 2*CLAMP((int)(*(plugin_data->stages)),1,10), IIR_STAGE_HIGHPASS, *(plugin_data->cutoff)/(float)sample_rate, 0.5f);
plugin_data->gt = gt;
plugin_data->iirf = iirf;
plugin_data->sample_rate = sample_rate;
}
static void activateBwxover_iir(LV2_Handle instance)
{
Bwxover_iir *plugin_data = (Bwxover_iir *)instance;
iirf_t* iirf __attribute__ ((unused)) = plugin_data->iirf;
iir_stage_t* gt __attribute__ ((unused)) = plugin_data->gt;
long sample_rate __attribute__ ((unused)) = plugin_data->sample_rate;
plugin_data->gt = init_iir_stage(IIR_STAGE_LOWPASS,1,3,2);
plugin_data->iirf = init_iirf_t(plugin_data->gt);
butterworth_stage(plugin_data->gt, 0, *(plugin_data->cutoff),
*(plugin_data->resonance),
sample_rate);
}
static void activateButthigh_iir(LADSPA_Handle instance) {
Butthigh_iir *plugin_data = (Butthigh_iir *)instance;
iir_stage_t*gt = plugin_data->gt;
iirf_t*iirf = plugin_data->iirf;
long sample_rate = plugin_data->sample_rate;
gt = init_iir_stage(IIR_STAGE_LOWPASS,1,3,2);
iirf = init_iirf_t(gt);
butterworth_stage(gt, 1, *(plugin_data->cutoff),
*(plugin_data->resonance),
sample_rate);
plugin_data->gt = gt;
plugin_data->iirf = iirf;
plugin_data->sample_rate = sample_rate;
}
static void activateBandpass_iir(LV2_Handle instance)
{
Bandpass_iir *plugin_data = (Bandpass_iir *)instance;
iirf_t* iirf __attribute__ ((unused)) = plugin_data->iirf;
iir_stage_t* gt __attribute__ ((unused)) = plugin_data->gt;
iir_stage_t* first __attribute__ ((unused)) = plugin_data->first;
iir_stage_t* second __attribute__ ((unused)) = plugin_data->second;
long sample_rate __attribute__ ((unused)) = plugin_data->sample_rate;
float ufc __attribute__ ((unused)) = plugin_data->ufc;
float lfc __attribute__ ((unused)) = plugin_data->lfc;
plugin_data->ufc = (*(plugin_data->center) + *(plugin_data->width)*0.5f)/(float)sample_rate;
plugin_data->lfc = (*(plugin_data->center) - *(plugin_data->width)*0.5f)/(float)sample_rate;
plugin_data->first = init_iir_stage(IIR_STAGE_LOWPASS,10,3,2);
plugin_data->second = init_iir_stage(IIR_STAGE_HIGHPASS,10,3,2);
plugin_data->gt = init_iir_stage(IIR_STAGE_BANDPASS,20,3,2);
plugin_data->iirf = init_iirf_t(plugin_data->gt);
chebyshev(plugin_data->iirf, plugin_data->first, 2*CLAMP((int)(*(plugin_data->stages)),1,10), IIR_STAGE_LOWPASS, plugin_data->ufc, 0.5f);
chebyshev(plugin_data->iirf, plugin_data->second, 2*CLAMP((int)(*(plugin_data->stages)),1,10), IIR_STAGE_HIGHPASS, plugin_data->lfc, 0.5f);
combine_iir_stages(IIR_STAGE_BANDPASS, plugin_data->gt, plugin_data->first, plugin_data->second,0,0);
}
