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#include <stdlib.h>
#include <string.h>
#ifndef WIN32
#include "config.h"
#endif
#ifdef ENABLE_NLS
#include <libintl.h>
#endif
#define _ISOC9X_SOURCE 1
#define _ISOC99_SOURCE 1
#define __USE_ISOC99 1
#define __USE_ISOC9X 1
#include <math.h>
#include "ladspa.h"
#ifdef WIN32
#define _WINDOWS_DLL_EXPORT_ __declspec(dllexport)
int bIsFirstTime = 1;
void _init(); // forward declaration
#else
#define _WINDOWS_DLL_EXPORT_
#endif
#line 9 "highpass_iir_1890.xml"
#include "config.h"
#include "util/iir.h"
#define HIGHPASS_IIR_CUTOFF 0
#define HIGHPASS_IIR_STAGES 1
#define HIGHPASS_IIR_INPUT 2
#define HIGHPASS_IIR_OUTPUT 3
static LADSPA_Descriptor *highpass_iirDescriptor = NULL;
typedef struct {
LADSPA_Data *cutoff;
LADSPA_Data *stages;
LADSPA_Data *input;
LADSPA_Data *output;
iir_stage_t* gt;
iirf_t* iirf;
long sample_rate;
LADSPA_Data run_adding_gain;
} Highpass_iir;
_WINDOWS_DLL_EXPORT_
const LADSPA_Descriptor *ladspa_descriptor(unsigned long index) {
#ifdef WIN32
if (bIsFirstTime) {
_init();
bIsFirstTime = 0;
}
#endif
switch (index) {
case 0:
return highpass_iirDescriptor;
default:
return NULL;
}
}
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;
#line 32 "highpass_iir_1890.xml"
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 cleanupHighpass_iir(LADSPA_Handle instance) {
#line 38 "highpass_iir_1890.xml"
Highpass_iir *plugin_data = (Highpass_iir *)instance;
free_iirf_t(plugin_data->iirf, plugin_data->gt);
free_iir_stage(plugin_data->gt);
free(instance);
}
static void connectPortHighpass_iir(
LADSPA_Handle instance,
unsigned long port,
LADSPA_Data *data) {
Highpass_iir *plugin;
plugin = (Highpass_iir *)instance;
switch (port) {
case HIGHPASS_IIR_CUTOFF:
plugin->cutoff = data;
break;
case HIGHPASS_IIR_STAGES:
plugin->stages = data;
break;
case HIGHPASS_IIR_INPUT:
plugin->input = data;
break;
case HIGHPASS_IIR_OUTPUT:
plugin->output = data;
break;
}
}
static LADSPA_Handle instantiateHighpass_iir(
const LADSPA_Descriptor *descriptor,
unsigned long s_rate) {
Highpass_iir *plugin_data = (Highpass_iir *)malloc(sizeof(Highpass_iir));
iir_stage_t*gt = NULL;
iirf_t*iirf = NULL;
long sample_rate;
#line 24 "highpass_iir_1890.xml"
sample_rate = s_rate;
plugin_data->gt = gt;
plugin_data->iirf = iirf;
plugin_data->sample_rate = sample_rate;
return (LADSPA_Handle)plugin_data;
}
#undef buffer_write
#undef RUN_ADDING
#undef RUN_REPLACING
#define buffer_write(b, v) (b = v)
#define RUN_ADDING 0
#define RUN_REPLACING 1
static void runHighpass_iir(LADSPA_Handle instance, unsigned long sample_count) {
Highpass_iir *plugin_data = (Highpass_iir *)instance;
/* Cutoff Frequency (float value) */
const LADSPA_Data cutoff = *(plugin_data->cutoff);
/* 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* gt = plugin_data->gt;
iirf_t* iirf = plugin_data->iirf;
long sample_rate = plugin_data->sample_rate;
#line 27 "highpass_iir_1890.xml"
chebyshev(iirf, gt, 2*CLAMP((int)stages,1,10), IIR_STAGE_HIGHPASS, cutoff/(float)sample_rate, 0.5f);
iir_process_buffer_ns_5(iirf, gt, input, output, sample_count,RUN_ADDING);
}
#undef buffer_write
#undef RUN_ADDING
#undef RUN_REPLACING
#define buffer_write(b, v) (b += (v) * run_adding_gain)
#define RUN_ADDING 1
#define RUN_REPLACING 0
static void setRunAddingGainHighpass_iir(LADSPA_Handle instance, LADSPA_Data gain) {
((Highpass_iir *)instance)->run_adding_gain = gain;
}
static void runAddingHighpass_iir(LADSPA_Handle instance, unsigned long sample_count) {
Highpass_iir *plugin_data = (Highpass_iir *)instance;
LADSPA_Data run_adding_gain = plugin_data->run_adding_gain;
/* Cutoff Frequency (float value) */
const LADSPA_Data cutoff = *(plugin_data->cutoff);
/* 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* gt = plugin_data->gt;
iirf_t* iirf = plugin_data->iirf;
long sample_rate = plugin_data->sample_rate;
#line 27 "highpass_iir_1890.xml"
chebyshev(iirf, gt, 2*CLAMP((int)stages,1,10), IIR_STAGE_HIGHPASS, cutoff/(float)sample_rate, 0.5f);
iir_process_buffer_ns_5(iirf, gt, input, output, sample_count,RUN_ADDING);
}
void _init() {
char **port_names;
LADSPA_PortDescriptor *port_descriptors;
LADSPA_PortRangeHint *port_range_hints;
#ifdef ENABLE_NLS
#define D_(s) dgettext(PACKAGE, s)
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, PACKAGE_LOCALE_DIR);
#else
#define D_(s) (s)
#endif
highpass_iirDescriptor =
(LADSPA_Descriptor *)malloc(sizeof(LADSPA_Descriptor));
if (highpass_iirDescriptor) {
highpass_iirDescriptor->UniqueID = 1890;
highpass_iirDescriptor->Label = "highpass_iir";
highpass_iirDescriptor->Properties =
LADSPA_PROPERTY_HARD_RT_CAPABLE;
highpass_iirDescriptor->Name =
D_("Glame Highpass Filter");
highpass_iirDescriptor->Maker =
"Alexander Ehlert <mag@glame.de>";
highpass_iirDescriptor->Copyright =
"GPL";
highpass_iirDescriptor->PortCount = 4;
port_descriptors = (LADSPA_PortDescriptor *)calloc(4,
sizeof(LADSPA_PortDescriptor));
highpass_iirDescriptor->PortDescriptors =
(const LADSPA_PortDescriptor *)port_descriptors;
port_range_hints = (LADSPA_PortRangeHint *)calloc(4,
sizeof(LADSPA_PortRangeHint));
highpass_iirDescriptor->PortRangeHints =
(const LADSPA_PortRangeHint *)port_range_hints;
port_names = (char **)calloc(4, sizeof(char*));
highpass_iirDescriptor->PortNames =
(const char **)port_names;
/* Parameters for Cutoff Frequency */
port_descriptors[HIGHPASS_IIR_CUTOFF] =
LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_names[HIGHPASS_IIR_CUTOFF] =
D_("Cutoff Frequency");
port_range_hints[HIGHPASS_IIR_CUTOFF].HintDescriptor =
LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE | LADSPA_HINT_DEFAULT_LOW | LADSPA_HINT_SAMPLE_RATE | LADSPA_HINT_LOGARITHMIC;
port_range_hints[HIGHPASS_IIR_CUTOFF].LowerBound = 0.0001;
port_range_hints[HIGHPASS_IIR_CUTOFF].UpperBound = 0.45;
/* Parameters for Stages(2 poles per stage) */
port_descriptors[HIGHPASS_IIR_STAGES] =
LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_names[HIGHPASS_IIR_STAGES] =
D_("Stages(2 poles per stage)");
port_range_hints[HIGHPASS_IIR_STAGES].HintDescriptor =
LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE | LADSPA_HINT_DEFAULT_1 | LADSPA_HINT_INTEGER;
port_range_hints[HIGHPASS_IIR_STAGES].LowerBound = 1.0;
port_range_hints[HIGHPASS_IIR_STAGES].UpperBound = 10.0;
/* Parameters for Input */
port_descriptors[HIGHPASS_IIR_INPUT] =
LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
port_names[HIGHPASS_IIR_INPUT] =
D_("Input");
port_range_hints[HIGHPASS_IIR_INPUT].HintDescriptor = 0;
/* Parameters for Output */
port_descriptors[HIGHPASS_IIR_OUTPUT] =
LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
port_names[HIGHPASS_IIR_OUTPUT] =
D_("Output");
port_range_hints[HIGHPASS_IIR_OUTPUT].HintDescriptor = 0;
highpass_iirDescriptor->activate = activateHighpass_iir;
highpass_iirDescriptor->cleanup = cleanupHighpass_iir;
highpass_iirDescriptor->connect_port = connectPortHighpass_iir;
highpass_iirDescriptor->deactivate = NULL;
highpass_iirDescriptor->instantiate = instantiateHighpass_iir;
highpass_iirDescriptor->run = runHighpass_iir;
highpass_iirDescriptor->run_adding = runAddingHighpass_iir;
highpass_iirDescriptor->set_run_adding_gain = setRunAddingGainHighpass_iir;
}
}
void _fini() {
if (highpass_iirDescriptor) {
free((LADSPA_PortDescriptor *)highpass_iirDescriptor->PortDescriptors);
free((char **)highpass_iirDescriptor->PortNames);
free((LADSPA_PortRangeHint *)highpass_iirDescriptor->PortRangeHints);
free(highpass_iirDescriptor);
}
}
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