scrap running gain, numbered names, refactor
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parent
c46936ce48
commit
8661e90a91
85
crap_eq.c
85
crap_eq.c
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@ -1,6 +1,8 @@
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#include <stdlib.h>
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#include <math.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include "ladspa.h"
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#include "crap_util.h"
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@ -27,10 +29,11 @@ typedef unsigned long ulong;
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#define BW_MAX 8
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void __attribute__ ((constructor)) eq_init();
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void __attribute__ ((destructor)) eq_fini();
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LADSPA_PortDescriptor p_discs[PCOUNT];
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LADSPA_PortRangeHint p_hints[PCOUNT];
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const char *p_names[PCOUNT];
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char *p_names[PCOUNT];
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static LADSPA_Descriptor eqDescriptor = {
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.UniqueID = 0xCAFED,
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@ -57,8 +60,6 @@ typedef struct {
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biquad filters[BANDS];
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LADSPA_Data fs;
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LADSPA_Data run_adding_gain;
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} eq_t;
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const LADSPA_Descriptor *
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@ -104,7 +105,6 @@ instantiate_eq(const LADSPA_Descriptor *descriptor, ulong s_rate) {
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LADSPA_Data fs = s_rate;
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eq->fs = fs;
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eq->run_adding_gain = 1;
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const LADSPA_Data g = 0;
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const LADSPA_Data f = 440;
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@ -120,29 +120,31 @@ instantiate_eq(const LADSPA_Descriptor *descriptor, ulong s_rate) {
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}
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static void
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run_eq_for_real(LADSPA_Handle instance, ulong sample_count, int running) {
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eq_t *eq = (eq_t *) instance;
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const LADSPA_Data fs = eq->fs;
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watch_parameters(eq_t *eq) {
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biquad *filters = eq->filters;
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/* TODO: I don't think this should be here at all */
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const LADSPA_Data fs = eq->fs;
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for (int i = 0; i < BANDS; i++) {
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const LADSPA_Data rg = *(eq->chg[i]);
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const LADSPA_Data rf = *(eq->chf[i]);
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const LADSPA_Data rb = *(eq->chb[i]);
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const LADSPA_Data g = LIMIT(rg, GAIN_MIN, GAIN_MAX);
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const LADSPA_Data f = LIMIT(rf, FREQ_MIN, FREQ_MAX);
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const LADSPA_Data b = LIMIT(rb, BW_MIN, BW_MAX);
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if ((g != eq->old_chg[i])
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|| (f != eq->old_chf[i])
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|| (b != eq->old_chb[i])) {
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if ((rg != eq->old_chg[i])
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|| (rf != eq->old_chf[i])
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|| (rb != eq->old_chb[i])) {
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const LADSPA_Data g = LIMIT(rg, GAIN_MIN, GAIN_MAX);
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const LADSPA_Data f = LIMIT(rf, FREQ_MIN, FREQ_MAX);
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const LADSPA_Data b = LIMIT(rb, BW_MIN, BW_MAX);
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eq->old_chg[i] = g;
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eq->old_chf[i] = f;
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eq->old_chb[i] = b;
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filters[i] = biquad_gen(1, f, g, b, fs);
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}
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}
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}
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static void
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run_eq(LADSPA_Handle instance, ulong sample_count) {
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eq_t *eq = (eq_t *) instance;
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biquad *filters = eq->filters;
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const LADSPA_Data *input = eq->input;
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LADSPA_Data *output = eq->output;
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@ -150,31 +152,15 @@ run_eq_for_real(LADSPA_Handle instance, ulong sample_count, int running) {
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for (ulong pos = 0; pos < sample_count; pos++) {
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LADSPA_Data samp = input[pos];
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for (int i = 0; i < BANDS; i++) {
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/* TODO: skip over 0 gains? */
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samp = biquad_run(&filters[i], samp);
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}
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if (running)
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output[pos] += eq->run_adding_gain * samp;
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else
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output[pos] = samp;
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output[pos] = samp;
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}
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}
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static void
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run_eq(LADSPA_Handle instance, ulong sample_count) {
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run_eq_for_real(instance, sample_count, 0);
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}
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static void
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run_adding_eq(LADSPA_Handle instance, ulong sample_count) {
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run_eq_for_real(instance, sample_count, 1);
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}
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void
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set_run_adding_gain(LADSPA_Handle instance, LADSPA_Data gain) {
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eq_t *eq = (eq_t *) instance;
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eq->run_adding_gain = gain;
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}
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static const char *gain_desc = "Band %i Gain [dB]";
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static const char *freq_desc = "Band %i Freq [Hz]";
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static const char *band_desc = "Band %i Bandwidth [octaves]";
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void
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eq_init() {
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@ -189,10 +175,12 @@ eq_init() {
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p_discs[fi] = INCTRL;
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p_discs[bi] = INCTRL;
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/* TODO: generate strings per band */
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p_names[gi] = "Band x Gain [dB]";
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p_names[fi] = "Band x Freq [Hz]";
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p_names[bi] = "Band x Bandwidth [octaves]";
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p_names[gi] = calloc(strlen(gain_desc), sizeof(char));
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p_names[fi] = calloc(strlen(freq_desc), sizeof(char));
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p_names[bi] = calloc(strlen(band_desc), sizeof(char));
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sprintf(p_names[gi], gain_desc, i);
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sprintf(p_names[fi], freq_desc, i);
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sprintf(p_names[bi], band_desc, i);
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p_hints[gi].HintDescriptor = BOUNDED
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| LADSPA_HINT_DEFAULT_0;
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@ -224,6 +212,19 @@ eq_init() {
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eqDescriptor.deactivate = NULL;
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eqDescriptor.instantiate = instantiate_eq;
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eqDescriptor.run = run_eq;
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eqDescriptor.run_adding = run_adding_eq;
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eqDescriptor.set_run_adding_gain = set_run_adding_gain;
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eqDescriptor.run_adding = NULL;
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eqDescriptor.set_run_adding_gain = NULL;
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}
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void
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eq_fini() {
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for (int i = 0; i < BANDS; i++) {
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const int gi = i;
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const int fi = i + BANDS;
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const int bi = i + BANDS*2;
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free(p_names[gi]);
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free(p_names[fi]);
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free(p_names[bi]);
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}
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}
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@ -27,8 +27,6 @@ typedef struct {
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biquad filters[REALBANDS];
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LADSPA_Data fs;
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LADSPA_Data run_adding_gain;
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} eq_t;
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static void
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@ -61,7 +59,6 @@ instantiate_eq(const LADSPA_Descriptor *descriptor, ulong s_rate) {
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LADSPA_Data fs = s_rate;
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eq->fs = fs;
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eq->run_adding_gain = 1;
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filters[0] = biquad_gen(4, 10, 0.0, 1.00, fs);
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filters[1] = biquad_gen(0, 36, 4.3, 1.25, fs);
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@ -72,9 +69,8 @@ instantiate_eq(const LADSPA_Descriptor *descriptor, ulong s_rate) {
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}
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static void
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run_eq_for_real(LADSPA_Handle instance, ulong sample_count, const int running) {
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run_eq(LADSPA_Handle instance, ulong sample_count) {
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eq_t *eq = (eq_t *) instance;
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biquad *filters = eq->filters;
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const LADSPA_Data *input = eq->input;
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@ -82,31 +78,13 @@ run_eq_for_real(LADSPA_Handle instance, ulong sample_count, const int running) {
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for (ulong pos = 0; pos < sample_count; pos++) {
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LADSPA_Data samp = input[pos];
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for (int i = 0; i < REALBANDS; i++)
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for (int i = 0; i < REALBANDS; i++) {
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samp = biquad_run(&filters[i], samp);
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if (running)
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output[pos] += eq->run_adding_gain * samp;
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else
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output[pos] = samp;
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}
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output[pos] = samp;
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}
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}
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static void
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run_eq(LADSPA_Handle instance, ulong sample_count) {
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run_eq_for_real(instance, sample_count, 0);
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}
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static void
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run_adding_eq(LADSPA_Handle instance, ulong sample_count) {
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run_eq_for_real(instance, sample_count, 1);
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}
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void
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set_run_adding_gain(LADSPA_Handle instance, LADSPA_Data gain) {
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eq_t *eq = (eq_t *) instance;
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eq->run_adding_gain = gain;
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}
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static const LADSPA_Descriptor eqDescriptor = {
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.UniqueID = 0xDEFACED,
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.Label = "crap_eq_const",
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@ -125,8 +103,8 @@ static const LADSPA_Descriptor eqDescriptor = {
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.deactivate = NULL,
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.instantiate = instantiate_eq,
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.run = run_eq,
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.run_adding = run_adding_eq,
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.set_run_adding_gain = set_run_adding_gain
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.run_adding = NULL,
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.set_run_adding_gain = NULL
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};
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const LADSPA_Descriptor *
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