61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
#include "common.h"
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#include <bw_chorus.h>
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typedef struct plugin {
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bw_chorus_coeffs chorus_coeffs;
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bw_chorus_state chorus_state;
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} plugin;
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static void plugin_init(plugin*instance) {
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bw_chorus_init(&instance->chorus_coeffs, 0.002f);
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bw_chorus_set_delay(&instance->chorus_coeffs, 0.001f);
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// values taken from Dattorro's paper
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bw_chorus_set_coeff_x(&instance->chorus_coeffs, 0.7071f);
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bw_chorus_set_coeff_mod(&instance->chorus_coeffs, 0.7071f);
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}
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static void plugin_fini(plugin *instance) {
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(void)instance;
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}
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static void plugin_set_sample_rate(plugin *instance, float sample_rate) {
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bw_chorus_set_sample_rate(&instance->chorus_coeffs, sample_rate);
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}
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static size_t plugin_mem_req(plugin *instance) {
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return bw_chorus_mem_req(&instance->chorus_coeffs);
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}
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static void plugin_mem_set(plugin *instance, void *mem) {
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bw_chorus_mem_set(&instance->chorus_coeffs, &instance->chorus_state, mem);
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}
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static void plugin_reset(plugin *instance) {
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bw_chorus_reset_coeffs(&instance->chorus_coeffs);
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bw_chorus_reset_state(&instance->chorus_coeffs, &instance->chorus_state, 0.f);
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}
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static void plugin_set_parameter(plugin *instance, size_t index, float value) {
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switch (index) {
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case 0:
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bw_chorus_set_rate(&instance->chorus_coeffs, value);
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break;
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case 1:
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bw_chorus_set_amount(&instance->chorus_coeffs, (0.01f * 0.001f) * value);
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break;
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case 2:
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bw_chorus_set_coeff_fb(&instance->chorus_coeffs, 0.01f * value);
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break;
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}
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}
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static float plugin_get_parameter(plugin *instance, size_t index) {
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(void)instance;
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(void)index;
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return 0.f;
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}
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static void plugin_process(plugin *instance, const float **inputs, float **outputs, size_t n_samples) {
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bw_chorus_process(&instance->chorus_coeffs, &instance->chorus_state, inputs[0], outputs[0], n_samples);
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}
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