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/* -*- linux-c -*-
Copyright (C) 2004 Tom Szilagyi
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include <ladspa.h>
#include "tap_utils.h"
/* The Unique ID of the plugin: */
#define ID_STEREO 2156
/* The port numbers for the plugin: */
#define TIME 0
#define PITCH 1
#define DRYLEVEL 2
#define DRYPOSL 3
#define DRYPOSR 4
#define WETLEVEL 5
#define WETPOSL 6
#define WETPOSR 7
#define INPUT_L 8
#define INPUT_R 9
#define OUTPUT_L 10
#define OUTPUT_R 11
/* Total number of ports */
#define PORTCOUNT_STEREO 12
/* Number of pink noise samples to be generated at once */
#define NOISE_LEN 1024
/*
* Largest buffer length needed (at 192 kHz).
*/
#define BUFLEN 11520
/* The structure used to hold port connection information and state */
typedef struct {
LADSPA_Data * time;
LADSPA_Data * pitch;
LADSPA_Data * drylevel;
LADSPA_Data * dryposl;
LADSPA_Data * dryposr;
LADSPA_Data * wetlevel;
LADSPA_Data * wetposl;
LADSPA_Data * wetposr;
LADSPA_Data * input_L;
LADSPA_Data * input_R;
LADSPA_Data * output_L;
LADSPA_Data * output_R;
LADSPA_Data old_time;
LADSPA_Data old_pitch;
LADSPA_Data * ring_L;
unsigned long buflen_L;
unsigned long pos_L;
LADSPA_Data * ring_R;
unsigned long buflen_R;
unsigned long pos_R;
LADSPA_Data * ring_pnoise;
unsigned long buflen_pnoise;
unsigned long pos_pnoise;
LADSPA_Data * ring_dnoise;
unsigned long buflen_dnoise;
unsigned long pos_dnoise;
float delay;
float d_delay;
float p_delay;
unsigned long n_delay;
float pitchmod;
float d_pitch;
float p_pitch;
unsigned long n_pitch;
unsigned long p_stretch;
unsigned long d_stretch;
unsigned long sample_rate;
LADSPA_Data run_adding_gain;
} Doubler;
/* generate fractal pattern using Midpoint Displacement Method
* v: buffer of floats to output fractal pattern to
* N: length of v, MUST be integer power of 2 (ie 128, 256, ...)
* H: Hurst constant, between 0 and 0.9999 (fractal dimension)
*/
void
fractal(LADSPA_Data * v, int N, float H) {
int l = N;
int k;
float r = 1.0f;
int c;
v[0] = 0;
while (l > 1) {
k = N / l;
for (c = 0; c < k; c++) {
v[c*l + l/2] = (v[c*l] + v[((c+1) * l) % N]) / 2.0f +
2.0f * r * (rand() - (float)RAND_MAX/2.0f) / (float)RAND_MAX;
v[c*l + l/2] = LIMIT(v[c*l + l/2], -1.0f, 1.0f);
}
l /= 2;
r /= powf(2, H);
}
}
/* Construct a new plugin instance. */
LADSPA_Handle
instantiate_Doubler(const LADSPA_Descriptor * Descriptor,
unsigned long sample_rate) {
LADSPA_Handle * ptr;
if ((ptr = malloc(sizeof(Doubler))) != NULL) {
((Doubler *)ptr)->sample_rate = sample_rate;
((Doubler *)ptr)->run_adding_gain = 1.0f;
if ((((Doubler *)ptr)->ring_L =
calloc(BUFLEN * sample_rate / 192000, sizeof(LADSPA_Data))) == NULL)
return NULL;
((Doubler *)ptr)->buflen_L = BUFLEN * sample_rate / 192000;
((Doubler *)ptr)->pos_L = 0;
if ((((Doubler *)ptr)->ring_R =
calloc(BUFLEN * sample_rate / 192000, sizeof(LADSPA_Data))) == NULL)
return NULL;
((Doubler *)ptr)->buflen_R = BUFLEN * sample_rate / 192000;
((Doubler *)ptr)->pos_R = 0;
if ((((Doubler *)ptr)->ring_pnoise =
calloc(NOISE_LEN, sizeof(LADSPA_Data))) == NULL)
return NULL;
((Doubler *)ptr)->buflen_pnoise = NOISE_LEN;
((Doubler *)ptr)->pos_pnoise = 0;
if ((((Doubler *)ptr)->ring_dnoise =
calloc(NOISE_LEN, sizeof(LADSPA_Data))) == NULL)
return NULL;
((Doubler *)ptr)->buflen_dnoise = NOISE_LEN;
((Doubler *)ptr)->pos_dnoise = 0;
((Doubler *)ptr)->d_stretch = sample_rate / 10;
((Doubler *)ptr)->p_stretch = sample_rate / 1000;
((Doubler *)ptr)->delay = 0.0f;
((Doubler *)ptr)->d_delay = 0.0f;
((Doubler *)ptr)->p_delay = 0.0f;
((Doubler *)ptr)->n_delay = ((Doubler *)ptr)->d_stretch;
((Doubler *)ptr)->pitchmod = 0.0f;
((Doubler *)ptr)->d_pitch = 0.0f;
((Doubler *)ptr)->p_pitch = 0.0f;
((Doubler *)ptr)->n_pitch = ((Doubler *)ptr)->p_stretch;
return ptr;
}
return NULL;
}
void
activate_Doubler(LADSPA_Handle Instance) {
Doubler * ptr = (Doubler *)Instance;
unsigned long i;
for (i = 0; i < BUFLEN * ptr->sample_rate / 192000; i++) {
ptr->ring_L[i] = 0.0f;
ptr->ring_R[i] = 0.0f;
}
ptr->old_time = -1.0f;
ptr->old_pitch = -1.0f;
}
/* Connect a port to a data location. */
void
connect_port_Doubler(LADSPA_Handle Instance,
unsigned long Port,
LADSPA_Data * data) {
Doubler * ptr = (Doubler *)Instance;
switch (Port) {
case TIME:
ptr->time = data;
break;
case PITCH:
ptr->pitch = data;
break;
case DRYLEVEL:
ptr->drylevel = data;
break;
case DRYPOSL:
ptr->dryposl = data;
break;
case DRYPOSR:
ptr->dryposr = data;
break;
case WETLEVEL:
ptr->wetlevel = data;
break;
case WETPOSL:
ptr->wetposl = data;
break;
case WETPOSR:
ptr->wetposr = data;
break;
case INPUT_L:
ptr->input_L = data;
break;
case INPUT_R:
ptr->input_R = data;
break;
case OUTPUT_L:
ptr->output_L = data;
break;
case OUTPUT_R:
ptr->output_R = data;
break;
}
}
void
run_Doubler(LADSPA_Handle Instance,
unsigned long SampleCount) {
Doubler * ptr = (Doubler *)Instance;
LADSPA_Data pitch = LIMIT(*(ptr->pitch),0.0f,1.0f) + 0.75f;
LADSPA_Data depth = LIMIT(((1.0f - LIMIT(*(ptr->pitch),0.0f,1.0f)) * 1.75f + 0.25f) *
ptr->sample_rate / 6000.0f / M_PI,
0, ptr->buflen_L / 2);
LADSPA_Data time = LIMIT(*(ptr->time), 0.0f, 1.0f) + 0.5f;
LADSPA_Data drylevel = db2lin(LIMIT(*(ptr->drylevel),-90.0f,20.0f));
LADSPA_Data wetlevel = db2lin(LIMIT(*(ptr->wetlevel),-90.0f,20.0f));
LADSPA_Data dryposl = 1.0f - LIMIT(*(ptr->dryposl), 0.0f, 1.0f);
LADSPA_Data dryposr = LIMIT(*(ptr->dryposr), 0.0f, 1.0f);
LADSPA_Data wetposl = 1.0f - LIMIT(*(ptr->wetposl), 0.0f, 1.0f);
LADSPA_Data wetposr = LIMIT(*(ptr->wetposr), 0.0f, 1.0f);
LADSPA_Data * input_L = ptr->input_L;
LADSPA_Data * input_R = ptr->input_R;
LADSPA_Data * output_L = ptr->output_L;
LADSPA_Data * output_R = ptr->output_R;
unsigned long sample_index;
unsigned long sample_count = SampleCount;
LADSPA_Data in_L = 0.0f;
LADSPA_Data in_R = 0.0f;
LADSPA_Data out_L = 0.0f;
LADSPA_Data out_R = 0.0f;
LADSPA_Data fpos = 0.0f;
LADSPA_Data n = 0.0f;
LADSPA_Data rem = 0.0f;
LADSPA_Data s_a_L, s_a_R, s_b_L, s_b_R;
LADSPA_Data prev_p_pitch = 0.0f;
LADSPA_Data prev_p_delay = 0.0f;
LADSPA_Data delay;
LADSPA_Data drystream_L = 0.0f;
LADSPA_Data drystream_R = 0.0f;
LADSPA_Data wetstream_L = 0.0f;
LADSPA_Data wetstream_R = 0.0f;
if (ptr->old_pitch != pitch) {
ptr->pitchmod = ptr->p_pitch;
prev_p_pitch = ptr->p_pitch;
fractal(ptr->ring_pnoise, NOISE_LEN, pitch);
ptr->pos_pnoise = 0;
ptr->p_pitch = push_buffer(0.0f, ptr->ring_pnoise,
ptr->buflen_pnoise, &(ptr->pos_pnoise));
ptr->d_pitch = (ptr->p_pitch - prev_p_pitch) / (float)(ptr->p_stretch);
ptr->n_pitch = 0;
ptr->old_pitch = pitch;
}
if (ptr->old_time != time) {
ptr->delay = ptr->p_delay;
prev_p_delay = ptr->p_delay;
fractal(ptr->ring_dnoise, NOISE_LEN, time);
ptr->pos_dnoise = 0;
ptr->p_delay = push_buffer(0.0f, ptr->ring_dnoise,
ptr->buflen_dnoise, &(ptr->pos_dnoise));
ptr->d_delay = (ptr->p_delay - prev_p_delay) / (float)(ptr->d_stretch);
ptr->n_delay = 0;
ptr->old_time = time;
}
for (sample_index = 0; sample_index < sample_count; sample_index++) {
in_L = *(input_L++);
in_R = *(input_R++);
push_buffer(in_L, ptr->ring_L, ptr->buflen_L, &(ptr->pos_L));
push_buffer(in_R, ptr->ring_R, ptr->buflen_R, &(ptr->pos_R));
if (ptr->n_pitch < ptr->p_stretch) {
ptr->pitchmod += ptr->d_pitch;
ptr->n_pitch++;
} else {
ptr->pitchmod = ptr->p_pitch;
prev_p_pitch = ptr->p_pitch;
if (!ptr->pos_pnoise) {
fractal(ptr->ring_pnoise, NOISE_LEN, pitch);
}
ptr->p_pitch = push_buffer(0.0f, ptr->ring_pnoise,
ptr->buflen_pnoise, &(ptr->pos_pnoise));
ptr->d_pitch = (ptr->p_pitch - prev_p_pitch) / (float)(ptr->p_stretch);
ptr->n_pitch = 0;
}
if (ptr->n_delay < ptr->d_stretch) {
ptr->delay += ptr->d_delay;
ptr->n_delay++;
} else {
ptr->delay = ptr->p_delay;
prev_p_delay = ptr->p_delay;
if (!ptr->pos_dnoise) {
fractal(ptr->ring_dnoise, NOISE_LEN, time);
}
ptr->p_delay = push_buffer(0.0f, ptr->ring_dnoise,
ptr->buflen_dnoise, &(ptr->pos_dnoise));
ptr->d_delay = (ptr->p_delay - prev_p_delay) / (float)(ptr->d_stretch);
ptr->n_delay = 0;
}
delay = (12.5f * ptr->delay + 37.5f) * ptr->sample_rate / 1000.0f;
fpos = ptr->buflen_L - depth * (1.0f - ptr->pitchmod) - delay - 1.0f;
n = floorf(fpos);
rem = fpos - n;
s_a_L = read_buffer(ptr->ring_L, ptr->buflen_L,
ptr->pos_L, (unsigned long) n);
s_b_L = read_buffer(ptr->ring_L, ptr->buflen_L,
ptr->pos_L, (unsigned long) n + 1);
s_a_R = read_buffer(ptr->ring_R, ptr->buflen_R,
ptr->pos_R, (unsigned long) n);
s_b_R = read_buffer(ptr->ring_R, ptr->buflen_R,
ptr->pos_R, (unsigned long) n + 1);
drystream_L = drylevel * in_L;
drystream_R = drylevel * in_R;
wetstream_L = wetlevel * ((1 - rem) * s_a_L + rem * s_b_L);
wetstream_R = wetlevel * ((1 - rem) * s_a_R + rem * s_b_R);
out_L = dryposl * drystream_L + (1.0f - dryposr) * drystream_R +
wetposl * wetstream_L + (1.0f - wetposr) * wetstream_R;
out_R = (1.0f - dryposl) * drystream_L + dryposr * drystream_R +
(1.0f - wetposl) * wetstream_L + wetposr * wetstream_R;
*(output_L++) = out_L;
*(output_R++) = out_R;
}
}
void
set_run_adding_gain_Doubler(LADSPA_Handle Instance, LADSPA_Data gain) {
Doubler * ptr = (Doubler *)Instance;
ptr->run_adding_gain = gain;
}
void
run_adding_Doubler(LADSPA_Handle Instance,
unsigned long SampleCount) {
Doubler * ptr = (Doubler *)Instance;
LADSPA_Data pitch = LIMIT(*(ptr->pitch),0.0f,1.0f) + 0.75f;
LADSPA_Data depth = LIMIT(((1.0f - LIMIT(*(ptr->pitch),0.0f,1.0f)) * 1.75f + 0.25f) *
ptr->sample_rate / 6000.0f / M_PI,
0, ptr->buflen_L / 2);
LADSPA_Data time = LIMIT(*(ptr->time), 0.0f, 1.0f) + 0.5f;
LADSPA_Data drylevel = db2lin(LIMIT(*(ptr->drylevel),-90.0f,20.0f));
LADSPA_Data wetlevel = db2lin(LIMIT(*(ptr->wetlevel),-90.0f,20.0f));
LADSPA_Data dryposl = 1.0f - LIMIT(*(ptr->dryposl), 0.0f, 1.0f);
LADSPA_Data dryposr = LIMIT(*(ptr->dryposr), 0.0f, 1.0f);
LADSPA_Data wetposl = 1.0f - LIMIT(*(ptr->wetposl), 0.0f, 1.0f);
LADSPA_Data wetposr = LIMIT(*(ptr->wetposr), 0.0f, 1.0f);
LADSPA_Data * input_L = ptr->input_L;
LADSPA_Data * input_R = ptr->input_R;
LADSPA_Data * output_L = ptr->output_L;
LADSPA_Data * output_R = ptr->output_R;
unsigned long sample_index;
unsigned long sample_count = SampleCount;
LADSPA_Data in_L = 0.0f;
LADSPA_Data in_R = 0.0f;
LADSPA_Data out_L = 0.0f;
LADSPA_Data out_R = 0.0f;
LADSPA_Data fpos = 0.0f;
LADSPA_Data n = 0.0f;
LADSPA_Data rem = 0.0f;
LADSPA_Data s_a_L, s_a_R, s_b_L, s_b_R;
LADSPA_Data prev_p_pitch = 0.0f;
LADSPA_Data prev_p_delay = 0.0f;
LADSPA_Data delay;
LADSPA_Data drystream_L = 0.0f;
LADSPA_Data drystream_R = 0.0f;
LADSPA_Data wetstream_L = 0.0f;
LADSPA_Data wetstream_R = 0.0f;
if (ptr->old_pitch != pitch) {
ptr->pitchmod = ptr->p_pitch;
prev_p_pitch = ptr->p_pitch;
fractal(ptr->ring_pnoise, NOISE_LEN, pitch);
ptr->pos_pnoise = 0;
ptr->p_pitch = push_buffer(0.0f, ptr->ring_pnoise,
ptr->buflen_pnoise, &(ptr->pos_pnoise));
ptr->d_pitch = (ptr->p_pitch - prev_p_pitch) / (float)(ptr->p_stretch);
ptr->n_pitch = 0;
ptr->old_pitch = pitch;
}
if (ptr->old_time != time) {
ptr->delay = ptr->p_delay;
prev_p_delay = ptr->p_delay;
fractal(ptr->ring_dnoise, NOISE_LEN, time);
ptr->pos_dnoise = 0;
ptr->p_delay = push_buffer(0.0f, ptr->ring_dnoise,
ptr->buflen_dnoise, &(ptr->pos_dnoise));
ptr->d_delay = (ptr->p_delay - prev_p_delay) / (float)(ptr->d_stretch);
ptr->n_delay = 0;
ptr->old_time = time;
}
for (sample_index = 0; sample_index < sample_count; sample_index++) {
in_L = *(input_L++);
in_R = *(input_R++);
push_buffer(in_L, ptr->ring_L, ptr->buflen_L, &(ptr->pos_L));
push_buffer(in_R, ptr->ring_R, ptr->buflen_R, &(ptr->pos_R));
if (ptr->n_pitch < ptr->p_stretch) {
ptr->pitchmod += ptr->d_pitch;
ptr->n_pitch++;
} else {
ptr->pitchmod = ptr->p_pitch;
prev_p_pitch = ptr->p_pitch;
if (!ptr->pos_pnoise) {
fractal(ptr->ring_pnoise, NOISE_LEN, pitch);
}
ptr->p_pitch = push_buffer(0.0f, ptr->ring_pnoise,
ptr->buflen_pnoise, &(ptr->pos_pnoise));
ptr->d_pitch = (ptr->p_pitch - prev_p_pitch) / (float)(ptr->p_stretch);
ptr->n_pitch = 0;
}
if (ptr->n_delay < ptr->d_stretch) {
ptr->delay += ptr->d_delay;
ptr->n_delay++;
} else {
ptr->delay = ptr->p_delay;
prev_p_delay = ptr->p_delay;
if (!ptr->pos_dnoise) {
fractal(ptr->ring_dnoise, NOISE_LEN, time);
}
ptr->p_delay = push_buffer(0.0f, ptr->ring_dnoise,
ptr->buflen_dnoise, &(ptr->pos_dnoise));
ptr->d_delay = (ptr->p_delay - prev_p_delay) / (float)(ptr->d_stretch);
ptr->n_delay = 0;
}
delay = (12.5f * ptr->delay + 37.5f) * ptr->sample_rate / 1000.0f;
fpos = ptr->buflen_L - depth * (1.0f - ptr->pitchmod) - delay - 1.0f;
n = floorf(fpos);
rem = fpos - n;
s_a_L = read_buffer(ptr->ring_L, ptr->buflen_L,
ptr->pos_L, (unsigned long) n);
s_b_L = read_buffer(ptr->ring_L, ptr->buflen_L,
ptr->pos_L, (unsigned long) n + 1);
s_a_R = read_buffer(ptr->ring_R, ptr->buflen_R,
ptr->pos_R, (unsigned long) n);
s_b_R = read_buffer(ptr->ring_R, ptr->buflen_R,
ptr->pos_R, (unsigned long) n + 1);
drystream_L = drylevel * in_L;
drystream_R = drylevel * in_R;
wetstream_L = wetlevel * ((1 - rem) * s_a_L + rem * s_b_L);
wetstream_R = wetlevel * ((1 - rem) * s_a_R + rem * s_b_R);
out_L = dryposl * drystream_L + (1.0f - dryposr) * drystream_R +
wetposl * wetstream_L + (1.0f - wetposr) * wetstream_R;
out_R = (1.0f - dryposl) * drystream_L + dryposr * drystream_R +
(1.0f - wetposl) * wetstream_L + wetposr * wetstream_R;
*(output_L++) += ptr->run_adding_gain * out_L;
*(output_R++) += ptr->run_adding_gain * out_R;
}
}
/* Throw away a Doubler effect instance. */
void
cleanup_Doubler(LADSPA_Handle Instance) {
Doubler * ptr = (Doubler *)Instance;
free(ptr->ring_L);
free(ptr->ring_R);
free(ptr->ring_pnoise);
free(ptr->ring_dnoise);
free(Instance);
}
LADSPA_Descriptor * stereo_descriptor = NULL;
/* __attribute__((constructor)) tap_init() is called automatically when the plugin library is first
loaded. */
void
__attribute__((constructor)) tap_init() {
char ** port_names;
LADSPA_PortDescriptor * port_descriptors;
LADSPA_PortRangeHint * port_range_hints;
if ((stereo_descriptor =
(LADSPA_Descriptor *)malloc(sizeof(LADSPA_Descriptor))) == NULL)
exit(1);
stereo_descriptor->UniqueID = ID_STEREO;
stereo_descriptor->Label = strdup("tap_doubler");
stereo_descriptor->Properties = 0;
stereo_descriptor->Name = strdup("TAP Fractal Doubler");
stereo_descriptor->Maker = strdup("Tom Szilagyi");
stereo_descriptor->Copyright = strdup("GPL");
stereo_descriptor->PortCount = PORTCOUNT_STEREO;
if ((port_descriptors =
(LADSPA_PortDescriptor *)calloc(PORTCOUNT_STEREO, sizeof(LADSPA_PortDescriptor))) == NULL)
exit(1);
stereo_descriptor->PortDescriptors = (const LADSPA_PortDescriptor *)port_descriptors;
port_descriptors[TIME] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_descriptors[PITCH] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_descriptors[DRYLEVEL] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_descriptors[DRYPOSL] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_descriptors[DRYPOSR] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_descriptors[WETLEVEL] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_descriptors[WETPOSL] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_descriptors[WETPOSR] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_descriptors[INPUT_L] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
port_descriptors[INPUT_R] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
port_descriptors[OUTPUT_L] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
port_descriptors[OUTPUT_R] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
if ((port_names =
(char **)calloc(PORTCOUNT_STEREO, sizeof(char *))) == NULL)
exit(1);
stereo_descriptor->PortNames = (const char **)port_names;
port_names[TIME] = strdup("Time Tracking");
port_names[PITCH] = strdup("Pitch Tracking");
port_names[DRYLEVEL] = strdup("Dry Level [dB]");
port_names[DRYPOSL] = strdup("Dry Left Position");
port_names[DRYPOSR] = strdup("Dry Right Position");
port_names[WETLEVEL] = strdup("Wet Level [dB]");
port_names[WETPOSL] = strdup("Wet Left Position");
port_names[WETPOSR] = strdup("Wet Right Position");
port_names[INPUT_L] = strdup("Input_L");
port_names[INPUT_R] = strdup("Input_R");
port_names[OUTPUT_L] = strdup("Output_L");
port_names[OUTPUT_R] = strdup("Output_R");
if ((port_range_hints =
((LADSPA_PortRangeHint *)calloc(PORTCOUNT_STEREO, sizeof(LADSPA_PortRangeHint)))) == NULL)
exit(1);
stereo_descriptor->PortRangeHints = (const LADSPA_PortRangeHint *)port_range_hints;
port_range_hints[TIME].HintDescriptor =
(LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_MIDDLE);
port_range_hints[PITCH].HintDescriptor =
(LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_MIDDLE);
port_range_hints[DRYLEVEL].HintDescriptor =
(LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_0);
port_range_hints[DRYPOSL].HintDescriptor =
(LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_MINIMUM);
port_range_hints[DRYPOSR].HintDescriptor =
(LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_MAXIMUM);
port_range_hints[WETLEVEL].HintDescriptor =
(LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_0);
port_range_hints[WETPOSL].HintDescriptor =
(LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_MINIMUM);
port_range_hints[WETPOSR].HintDescriptor =
(LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_MAXIMUM);
port_range_hints[TIME].LowerBound = 0.0f;
port_range_hints[TIME].UpperBound = 1.0f;
port_range_hints[PITCH].LowerBound = 0.0f;
port_range_hints[PITCH].UpperBound = 1.0f;
port_range_hints[DRYLEVEL].LowerBound = -90.0f;
port_range_hints[DRYLEVEL].UpperBound = +20.0f;
port_range_hints[DRYPOSL].LowerBound = 0.0f;
port_range_hints[DRYPOSL].UpperBound = 1.0f;
port_range_hints[DRYPOSR].LowerBound = 0.0f;
port_range_hints[DRYPOSR].UpperBound = 1.0f;
port_range_hints[WETLEVEL].LowerBound = -90.0f;
port_range_hints[WETLEVEL].UpperBound = +20.0f;
port_range_hints[WETPOSL].LowerBound = 0.0f;
port_range_hints[WETPOSL].UpperBound = 1.0f;
port_range_hints[WETPOSR].LowerBound = 0.0f;
port_range_hints[WETPOSR].UpperBound = 1.0f;
port_range_hints[INPUT_L].HintDescriptor = 0;
port_range_hints[INPUT_R].HintDescriptor = 0;
port_range_hints[OUTPUT_L].HintDescriptor = 0;
port_range_hints[OUTPUT_R].HintDescriptor = 0;
stereo_descriptor->instantiate = instantiate_Doubler;
stereo_descriptor->connect_port = connect_port_Doubler;
stereo_descriptor->activate = activate_Doubler;
stereo_descriptor->run = run_Doubler;
stereo_descriptor->run_adding = run_adding_Doubler;
stereo_descriptor->set_run_adding_gain = set_run_adding_gain_Doubler;
stereo_descriptor->deactivate = NULL;
stereo_descriptor->cleanup = cleanup_Doubler;
}
void
delete_descriptor(LADSPA_Descriptor * descriptor) {
unsigned long index;
if (descriptor) {
free((char *)descriptor->Label);
free((char *)descriptor->Name);
free((char *)descriptor->Maker);
free((char *)descriptor->Copyright);
free((LADSPA_PortDescriptor *)descriptor->PortDescriptors);
for (index = 0; index < descriptor->PortCount; index++)
free((char *)(descriptor->PortNames[index]));
free((char **)descriptor->PortNames);
free((LADSPA_PortRangeHint *)descriptor->PortRangeHints);
free(descriptor);
}
}
/* __attribute__((destructor)) tap_fini() is called automatically when the library is unloaded. */
void
__attribute__((destructor)) tap_fini() {
delete_descriptor(stereo_descriptor);
}
/* Return a descriptor of the requested plugin type. */
const LADSPA_Descriptor *
ladspa_descriptor(unsigned long Index) {
switch (Index) {
case 0:
return stereo_descriptor;
default:
return NULL;
}
}
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