96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*
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* Brickworks
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*
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* Copyright (C) 2023, 2024 Orastron Srl unipersonale
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*
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* Brickworks is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* Brickworks is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Brickworks. If not, see <http://www.gnu.org/licenses/>.
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*
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* File author: Stefano D'Angelo
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*/
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#include "common.h"
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#include <bw_fuzz.h>
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#include <bw_src_int.h>
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#define BUF_SIZE 32
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typedef struct plugin {
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bw_fuzz_coeffs fuzz_coeffs;
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bw_fuzz_state fuzz_state;
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bw_src_int_coeffs src_up_coeffs;
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bw_src_int_state src_up_state;
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bw_src_int_coeffs src_down_coeffs;
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bw_src_int_state src_down_state;
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float buf[BUF_SIZE];
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} plugin;
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static void plugin_init(plugin *instance) {
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bw_fuzz_init(&instance->fuzz_coeffs);
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bw_src_int_init(&instance->src_up_coeffs, 2);
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bw_src_int_init(&instance->src_down_coeffs, -2);
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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_fuzz_set_sample_rate(&instance->fuzz_coeffs, 2.f * sample_rate);
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}
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static size_t plugin_mem_req(plugin *instance) {
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(void)instance;
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return 0;
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}
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static void plugin_mem_set(plugin *instance, void *mem) {
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(void)instance;
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(void)mem;
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}
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static void plugin_reset(plugin *instance) {
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bw_fuzz_reset_coeffs(&instance->fuzz_coeffs);
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bw_fuzz_reset_state(&instance->fuzz_coeffs, &instance->fuzz_state, 0.f);
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bw_src_int_reset_state(&instance->src_up_coeffs, &instance->src_up_state, 0.f);
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bw_src_int_reset_state(&instance->src_down_coeffs, &instance->src_down_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_fuzz_set_fuzz(&instance->fuzz_coeffs, 0.01f * value);
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break;
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case 1:
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bw_fuzz_set_volume(&instance->fuzz_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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size_t i = 0;
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while (i < n_samples) {
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int n = bw_mini32(n_samples - i, BUF_SIZE >> 1);
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bw_src_int_process(&instance->src_up_coeffs, &instance->src_up_state, inputs[0] + i, instance->buf, n);
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bw_fuzz_process(&instance->fuzz_coeffs, &instance->fuzz_state, instance->buf, instance->buf, n << 1);
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bw_src_int_process(&instance->src_down_coeffs, &instance->src_down_state, instance->buf, outputs[0] + i, n << 1);
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i += n;
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}
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}
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