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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 10 "valve_1209.xml"
#include "ladspa-util.h"
#define VALVE_Q_P 0
#define VALVE_DIST_P 1
#define VALVE_INPUT 2
#define VALVE_OUTPUT 3
static LADSPA_Descriptor *valveDescriptor = NULL;
typedef struct {
LADSPA_Data *q_p;
LADSPA_Data *dist_p;
LADSPA_Data *input;
LADSPA_Data *output;
LADSPA_Data itm1;
LADSPA_Data otm1;
LADSPA_Data run_adding_gain;
} Valve;
_WINDOWS_DLL_EXPORT_
const LADSPA_Descriptor *ladspa_descriptor(unsigned long index) {
#ifdef WIN32
if (bIsFirstTime) {
_init();
bIsFirstTime = 0;
}
#endif
switch (index) {
case 0:
return valveDescriptor;
default:
return NULL;
}
}
static void activateValve(LADSPA_Handle instance) {
Valve *plugin_data = (Valve *)instance;
LADSPA_Data itm1 = plugin_data->itm1;
LADSPA_Data otm1 = plugin_data->otm1;
#line 21 "valve_1209.xml"
itm1 = 0.0f;
otm1 = 0.0f;
plugin_data->itm1 = itm1;
plugin_data->otm1 = otm1;
}
static void cleanupValve(LADSPA_Handle instance) {
free(instance);
}
static void connectPortValve(
LADSPA_Handle instance,
unsigned long port,
LADSPA_Data *data) {
Valve *plugin;
plugin = (Valve *)instance;
switch (port) {
case VALVE_Q_P:
plugin->q_p = data;
break;
case VALVE_DIST_P:
plugin->dist_p = data;
break;
case VALVE_INPUT:
plugin->input = data;
break;
case VALVE_OUTPUT:
plugin->output = data;
break;
}
}
static LADSPA_Handle instantiateValve(
const LADSPA_Descriptor *descriptor,
unsigned long s_rate) {
Valve *plugin_data = (Valve *)malloc(sizeof(Valve));
plugin_data->run_adding_gain = 1.0f;
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 runValve(LADSPA_Handle instance, unsigned long sample_count) {
Valve *plugin_data = (Valve *)instance;
/* Distortion level (float value) */
const LADSPA_Data q_p = *(plugin_data->q_p);
/* Distortion character (float value) */
const LADSPA_Data dist_p = *(plugin_data->dist_p);
/* 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;
LADSPA_Data itm1 = plugin_data->itm1;
LADSPA_Data otm1 = plugin_data->otm1;
#line 26 "valve_1209.xml"
unsigned long pos;
LADSPA_Data fx;
const float q = q_p - 0.999f;
const float dist = dist_p * 40.0f + 0.1f;
if (q == 0.0f) {
for (pos = 0; pos < sample_count; pos++) {
if (input[pos] == q) {
fx = 1.0f / dist;
} else {
fx = input[pos] / (1.0f - f_exp(-dist * input[pos]));
}
otm1 = 0.999f * otm1 + fx - itm1;
round_to_zero(&otm1);
itm1 = fx;
buffer_write(output[pos], otm1);
}
} else {
for (pos = 0; pos < sample_count; pos++) {
if (input[pos] == q) {
fx = 1.0f / dist + q / (1.0f - f_exp(dist * q));
} else {
fx = (input[pos] - q) /
(1.0f - f_exp(-dist * (input[pos] - q))) +
q / (1.0f - f_exp(dist * q));
}
otm1 = 0.999f * otm1 + fx - itm1;
round_to_zero(&otm1);
itm1 = fx;
buffer_write(output[pos], otm1);
}
}
plugin_data->itm1 = itm1;
plugin_data->otm1 = otm1;
}
#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 setRunAddingGainValve(LADSPA_Handle instance, LADSPA_Data gain) {
((Valve *)instance)->run_adding_gain = gain;
}
static void runAddingValve(LADSPA_Handle instance, unsigned long sample_count) {
Valve *plugin_data = (Valve *)instance;
LADSPA_Data run_adding_gain = plugin_data->run_adding_gain;
/* Distortion level (float value) */
const LADSPA_Data q_p = *(plugin_data->q_p);
/* Distortion character (float value) */
const LADSPA_Data dist_p = *(plugin_data->dist_p);
/* 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;
LADSPA_Data itm1 = plugin_data->itm1;
LADSPA_Data otm1 = plugin_data->otm1;
#line 26 "valve_1209.xml"
unsigned long pos;
LADSPA_Data fx;
const float q = q_p - 0.999f;
const float dist = dist_p * 40.0f + 0.1f;
if (q == 0.0f) {
for (pos = 0; pos < sample_count; pos++) {
if (input[pos] == q) {
fx = 1.0f / dist;
} else {
fx = input[pos] / (1.0f - f_exp(-dist * input[pos]));
}
otm1 = 0.999f * otm1 + fx - itm1;
round_to_zero(&otm1);
itm1 = fx;
buffer_write(output[pos], otm1);
}
} else {
for (pos = 0; pos < sample_count; pos++) {
if (input[pos] == q) {
fx = 1.0f / dist + q / (1.0f - f_exp(dist * q));
} else {
fx = (input[pos] - q) /
(1.0f - f_exp(-dist * (input[pos] - q))) +
q / (1.0f - f_exp(dist * q));
}
otm1 = 0.999f * otm1 + fx - itm1;
round_to_zero(&otm1);
itm1 = fx;
buffer_write(output[pos], otm1);
}
}
plugin_data->itm1 = itm1;
plugin_data->otm1 = otm1;
}
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
valveDescriptor =
(LADSPA_Descriptor *)malloc(sizeof(LADSPA_Descriptor));
if (valveDescriptor) {
valveDescriptor->UniqueID = 1209;
valveDescriptor->Label = "valve";
valveDescriptor->Properties =
LADSPA_PROPERTY_HARD_RT_CAPABLE;
valveDescriptor->Name =
D_("Valve saturation");
valveDescriptor->Maker =
"Steve Harris <steve@plugin.org.uk>";
valveDescriptor->Copyright =
"GPL";
valveDescriptor->PortCount = 4;
port_descriptors = (LADSPA_PortDescriptor *)calloc(4,
sizeof(LADSPA_PortDescriptor));
valveDescriptor->PortDescriptors =
(const LADSPA_PortDescriptor *)port_descriptors;
port_range_hints = (LADSPA_PortRangeHint *)calloc(4,
sizeof(LADSPA_PortRangeHint));
valveDescriptor->PortRangeHints =
(const LADSPA_PortRangeHint *)port_range_hints;
port_names = (char **)calloc(4, sizeof(char*));
valveDescriptor->PortNames =
(const char **)port_names;
/* Parameters for Distortion level */
port_descriptors[VALVE_Q_P] =
LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_names[VALVE_Q_P] =
D_("Distortion level");
port_range_hints[VALVE_Q_P].HintDescriptor =
LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE | LADSPA_HINT_DEFAULT_0;
port_range_hints[VALVE_Q_P].LowerBound = 0;
port_range_hints[VALVE_Q_P].UpperBound = 1;
/* Parameters for Distortion character */
port_descriptors[VALVE_DIST_P] =
LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_names[VALVE_DIST_P] =
D_("Distortion character");
port_range_hints[VALVE_DIST_P].HintDescriptor =
LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE | LADSPA_HINT_DEFAULT_0;
port_range_hints[VALVE_DIST_P].LowerBound = 0;
port_range_hints[VALVE_DIST_P].UpperBound = 1;
/* Parameters for Input */
port_descriptors[VALVE_INPUT] =
LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
port_names[VALVE_INPUT] =
D_("Input");
port_range_hints[VALVE_INPUT].HintDescriptor = 0;
/* Parameters for Output */
port_descriptors[VALVE_OUTPUT] =
LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
port_names[VALVE_OUTPUT] =
D_("Output");
port_range_hints[VALVE_OUTPUT].HintDescriptor = 0;
valveDescriptor->activate = activateValve;
valveDescriptor->cleanup = cleanupValve;
valveDescriptor->connect_port = connectPortValve;
valveDescriptor->deactivate = NULL;
valveDescriptor->instantiate = instantiateValve;
valveDescriptor->run = runValve;
valveDescriptor->run_adding = runAddingValve;
valveDescriptor->set_run_adding_gain = setRunAddingGainValve;
}
}
void _fini() {
if (valveDescriptor) {
free((LADSPA_PortDescriptor *)valveDescriptor->PortDescriptors);
free((char **)valveDescriptor->PortNames);
free((LADSPA_PortRangeHint *)valveDescriptor->PortRangeHints);
free(valveDescriptor);
}
}
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