static void runAddingBandpass_iir(LADSPA_Handle instance, unsigned long sample_count) {
Bandpass_iir *plugin_data = (Bandpass_iir *)instance;
/* Center Frequency (Hz) (float value) */
const LADSPA_Data center = *(plugin_data->center);
/* Bandwidth (Hz) (float value) */
const LADSPA_Data width = *(plugin_data->width);
/* Stages(2 poles per stage) (float value) */
const LADSPA_Data stages = *(plugin_data->stages);
/* Input (array of floats of length sample_count) */
const LADSPA_Data * const input = plugin_data->input;
/* Output (array of floats of length sample_count) */
LADSPA_Data * const output = plugin_data->output;
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 = (center + width*0.5f)/(float)sample_rate;
lfc = (center - width*0.5f)/(float)sample_rate;
combine_iir_stages(IIR_STAGE_BANDPASS, gt, first, second,
chebyshev(iirf, first, 2*CLAMP((int)stages,1,10), IIR_STAGE_LOWPASS, ufc, 0.5f),
chebyshev(iirf, second, 2*CLAMP((int)stages,1,10), IIR_STAGE_HIGHPASS, lfc, 0.5f));
iir_process_buffer_ns_5(iirf, gt, input, output, sample_count,RUN_ADDING);
}
static void runBandpass_iir(LV2_Handle instance, uint32_t sample_count)
{
Bandpass_iir *plugin_data = (Bandpass_iir *)instance;
const float center = *(plugin_data->center);
const float width = *(plugin_data->width);
const float stages = *(plugin_data->stages);
const float * const input = plugin_data->input;
float * const output = plugin_data->output;
iirf_t* iirf = plugin_data->iirf;
iir_stage_t* gt = plugin_data->gt;
iir_stage_t* first = plugin_data->first;
iir_stage_t* second = plugin_data->second;
long sample_rate = plugin_data->sample_rate;
float ufc = plugin_data->ufc;
float lfc = plugin_data->lfc;
ufc = (center + width*0.5f)/(float)sample_rate;
lfc = (center - width*0.5f)/(float)sample_rate;
combine_iir_stages(IIR_STAGE_BANDPASS, gt, first, second,
chebyshev(iirf, first, 2*CLAMP((int)stages,1,10), IIR_STAGE_LOWPASS, ufc, 0.5f),
chebyshev(iirf, second, 2*CLAMP((int)stages,1,10), IIR_STAGE_HIGHPASS, lfc, 0.5f));
iir_process_buffer_ns_5(iirf, gt, input, output, sample_count);
}
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);
}
