brickworks/examples/fx_reverb/src/plugin.h

85 lines
2.6 KiB
C

/*
* Brickworks
*
* Copyright (C) 2023, 2024 Orastron Srl unipersonale
*
* Brickworks 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, version 3 of the License.
*
* Brickworks 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 Brickworks. If not, see <http://www.gnu.org/licenses/>.
*
* File author: Stefano D'Angelo
*/
#include "common.h"
#include <bw_reverb.h>
typedef struct plugin {
bw_reverb_coeffs reverb_coeffs;
bw_reverb_state reverb_state;
} plugin;
static void plugin_init(plugin *instance, plugin_callbacks *cbs) {
(void)cbs;
bw_reverb_init(&instance->reverb_coeffs);
}
static void plugin_fini(plugin *instance) {
(void)instance;
}
static void plugin_set_sample_rate(plugin *instance, float sample_rate) {
bw_reverb_set_sample_rate(&instance->reverb_coeffs, sample_rate);
}
static size_t plugin_mem_req(plugin *instance) {
return bw_reverb_mem_req(&instance->reverb_coeffs);
}
static void plugin_mem_set(plugin *instance, void *mem) {
bw_reverb_mem_set(&instance->reverb_coeffs, &instance->reverb_state, mem);
}
static void plugin_reset(plugin *instance) {
bw_reverb_reset_coeffs(&instance->reverb_coeffs);
float yl, yr;
bw_reverb_reset_state(&instance->reverb_coeffs, &instance->reverb_state, 0.f, 0.f, &yl, &yr);
}
static void plugin_set_parameter(plugin *instance, size_t index, float value) {
switch (index) {
case plugin_parameter_predelay:
bw_reverb_set_predelay(&instance->reverb_coeffs, 0.001f * value);
break;
case plugin_parameter_bandwidth:
bw_reverb_set_bandwidth(&instance->reverb_coeffs, value);
break;
case plugin_parameter_damping:
bw_reverb_set_damping(&instance->reverb_coeffs, value);
break;
case plugin_parameter_decay:
bw_reverb_set_decay(&instance->reverb_coeffs, 0.01f * bw_minf(value, 99.9f));
break;
case plugin_parameter_wet:
bw_reverb_set_wet(&instance->reverb_coeffs, 0.01f * value);
break;
}
}
static float plugin_get_parameter(plugin *instance, size_t index) {
(void)instance;
(void)index;
return 0.f;
}
static void plugin_process(plugin *instance, const float **inputs, float **outputs, size_t n_samples) {
bw_reverb_process(&instance->reverb_coeffs, &instance->reverb_state, inputs[0], inputs[1], outputs[0], outputs[1], n_samples);
}