new bw_pan and bw_balance + using BW_RESTRICT in process1 in bw_phase_gen and bw_svf
This commit is contained in:
Stefano D'Angelo
parent
a5cb9b9c06
commit
46383fde17
2
TODO
2
TODO
@ -22,6 +22,8 @@ code:
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* Q to slope and viceversa functions in 2nd order shelf filters? keep updated values (seamless switch, syncrhonicity)?
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* treat unused variable/function warnings
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* csch for bw_peak bandwidth -> Q
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* sample rate-constant coeffs? (pan case)
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* pan process with no out: should just reset coeffs?
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build system:
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* make makefiles handle paths with spaces etc
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211
include/bw_balance.h
Normal file
211
include/bw_balance.h
Normal file
@ -0,0 +1,211 @@
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/*
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* Brickworks
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*
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* Copyright (C) 2023 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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/*!
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* module_type {{{ dsp }}}
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* version {{{ 0.3.0 }}}
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* requires {{{ bw_config bw_common bw_gain bw_math bw_one_pole }}}
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* description {{{
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* Stereo balance.
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* }}}
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* changelog {{{
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* <ul>
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* <li>Version <strong>0.3.0</strong>:
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* <ul>
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* <li>First release.</li>
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* </ul>
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* </li>
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* </ul>
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* }}}
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*/
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#ifndef _BW_BALANCE_H
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#define _BW_BALANCE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <bw_common.h>
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/*! api {{{
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* #### bw_balance_coeffs
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* ```>>> */
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typedef struct _bw_balance_coeffs bw_balance_coeffs;
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/*! <<<```
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* Coefficients and related.
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*
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* #### bw_balance_init()
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* ```>>> */
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static inline void bw_balance_init(bw_balance_coeffs *BW_RESTRICT coeffs);
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/*! <<<```
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* Initializes input parameter values in `coeffs`.
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*
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* #### bw_balance_set_sample_rate()
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* ```>>> */
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static inline void bw_balance_set_sample_rate(bw_balance_coeffs *BW_RESTRICT coeffs, float sample_rate);
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/*! <<<```
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* Sets the `sample_rate` (Hz) value in `coeffs`.
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*
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* #### bw_balance_reset_coeffs()
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* ```>>> */
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static inline void bw_balance_reset_coeffs(bw_balance_coeffs *BW_RESTRICT coeffs);
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/*! <<<```
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* Resets coefficients in `coeffs` to assume their target values.
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*
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* #### bw_balance_update_coeffs_ctrl()
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* ```>>> */
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static inline void bw_balance_update_coeffs_ctrl(bw_balance_coeffs *BW_RESTRICT coeffs);
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/*! <<<```
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* Triggers control-rate update of coefficients in `coeffs`.
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*
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* #### bw_balance_update_coeffs_audio()
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* ```>>> */
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static inline void bw_balance_update_coeffs_audio(bw_balance_coeffs *BW_RESTRICT coeffs);
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/*! <<<```
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* Triggers audio-rate update of coefficients in `coeffs`.
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*
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* #### bw_balance_process1()
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* ```>>> */
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static inline float bw_balance_process1(const bw_balance_coeffs *BW_RESTRICT coeffs, float x_l, float x_r, float *BW_RESTRICT y_l, float *BW_RESTRICT y_r);
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/*! <<<```
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* Processes one set of input samples `x_l` (left) and `x_r` (right) using
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* `coeffs`, while using and updating `state`. The left and right output
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* samples are put into `y_l` (left) and `y_r` (right) respectively.
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*
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* #### bw_balance_process()
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* ```>>> */
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static inline void bw_balance_process(bw_balance_coeffs *BW_RESTRICT coeffs, const float *x_l, const float *x_r, float *y_l, float *y_r, int n_samples);
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/*! <<<```
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* Processes the first `n_samples` of the input buffers `x_l` (left) and
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* `x_r` (right) and fills the first `n_samples` of the output buffers `y_l`
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* (left) and `y_r` (right), if they are not `NULL`, while using and updating
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* `coeffs` (control and audio rate).
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*
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* #### bw_balance_set_balance()
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* ```>>> */
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static inline void bw_balance_set_balance(bw_balance_coeffs *BW_RESTRICT coeffs, float value);
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/*! <<<```
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* Sets the balance `value`, where `-1.f` corresponds to hard left balance,
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* `0.f` to center balance, and `1.f` to hard right balance.
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*
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* Default value: `0.f`.
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* }}} */
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/*** Implementation ***/
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/* WARNING: This part of the file is not part of the public API. Its content may
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* change at any time in future versions. Please, do not use it directly. */
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#include <bw_math.h>
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#include <bw_gain.h>
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struct _bw_balance_coeffs {
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// Sub-components
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bw_gain_coeffs l_coeffs;
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bw_gain_coeffs r_coeffs;
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// Parameters
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float balance;
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float balance_prev;
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};
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static inline void bw_balance_init(bw_balance_coeffs *BW_RESTRICT coeffs) {
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bw_gain_init(&coeffs->l_coeffs);
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bw_gain_init(&coeffs->r_coeffs);
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coeffs->balance = 0.f;
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}
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static inline void bw_balance_set_sample_rate(bw_balance_coeffs *BW_RESTRICT coeffs, float sample_rate) {
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bw_gain_set_sample_rate(&coeffs->l_coeffs, sample_rate);
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bw_gain_set_sample_rate(&coeffs->r_coeffs, sample_rate);
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}
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static inline void _bw_balance_do_update_coeffs(bw_gain_coeffs *BW_RESTRICT coeffs, char force) {
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if (force || coeffs->balance != coeffs->balance_prev) {
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bw_gain_set_gain_lin(&coeffs->l_coeffs, bw_minf(1.f - coeffs->balance, 1.f));
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bw_gain_set_gain_lin(&coeffs->r_coeffs, bw_minf(1.f + coeffs->balance, 1.f));
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coeffs->balance_prev = coeffs->balance;
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}
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}
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static inline void bw_balance_reset_coeffs(bw_balance_coeffs *BW_RESTRICT coeffs) {
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_bw_balance_do_update_coeffs(coeffs, 1);
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bw_gain_reset_coeffs(&coeffs->l_coeffs);
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bw_gain_reset_coeffs(&coeffs->r_coeffs);
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}
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static inline void bw_balance_update_coeffs_ctrl(bw_balance_coeffs *BW_RESTRICT coeffs) {
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_bw_balance_do_update_coeffs(coeffs, 0);
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bw_gain_update_coeffs_ctrl(&coeffs->l_coeffs);
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bw_gain_update_coeffs_ctrl(&coeffs->r_coeffs);
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}
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static inline void bw_balance_update_coeffs_audio(bw_balance_coeffs *BW_RESTRICT coeffs) {
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bw_gain_update_coeffs_audio(&coeffs->l_coeffs);
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bw_gain_update_coeffs_audio(&coeffs->r_coeffs);
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}
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static inline float bw_balance_process1(const bw_balance_coeffs *BW_RESTRICT coeffs, float x_l, float x_r, float *BW_RESTRICT y_l, float *BW_RESTRICT y_r) {
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*y_l = bw_gain_process1(&coeffs->l_coeffs, x_l);
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*y_r = bw_gain_process1(&coeffs->r_coeffs, x_r);
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}
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static inline void bw_balance_process(bw_balance_coeffs *BW_RESTRICT coeffs, const float *x_l, const float *x_r, float *y_l, float *y_r, int n_samples){
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bw_balance_update_coeffs_ctrl(coeffs);
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if (y_l != NULL) {
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if (y_r != NULL) {
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for (int i = 0; i < n_samples; i++) {
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bw_balance_update_coeffs_audio(coeffs);
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bw_balance_process1(coeffs, state, x_l[i], x_r[i], y_l + i, y_r + i);
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}
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} else {
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for (int i = 0; i < n_samples; i++) {
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bw_balance_update_coeffs_audio(coeffs);
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float r;
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bw_balance_process1(coeffs, state, x_l[i], x_r[i], y_l + i, &r);
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}
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}
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} else {
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if (y_r != NULL) {
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for (int i = 0; i < n_samples; i++) {
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bw_balance_update_coeffs_audio(coeffs);
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float l;
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bw_balance_process1(coeffs, state, x_l[i], x_r[i], &l, y_r + i);
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}
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} else {
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for (int i = 0; i < n_samples; i++) {
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bw_balance_update_coeffs_audio(coeffs);
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float l, r;
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bw_balance_process1(coeffs, state, x_l[i], x_r[i], &l, &r);
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}
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}
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}
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}
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static inline void bw_balance_set_balance(bw_balance_coeffs *BW_RESTRICT coeffs, float value) {
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coeffs->balance = value;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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212
include/bw_pan.h
Normal file
212
include/bw_pan.h
Normal file
@ -0,0 +1,212 @@
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/*
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* Brickworks
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*
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* Copyright (C) 2023 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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/*!
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* module_type {{{ dsp }}}
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* version {{{ 0.3.0 }}}
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* requires {{{ bw_config bw_common bw_gain bw_math bw_one_pole }}}
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* description {{{
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* Stereo panner.
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* }}}
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* changelog {{{
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* <ul>
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* <li>Version <strong>0.3.0</strong>:
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* <ul>
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* <li>First release.</li>
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* </ul>
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* </li>
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* </ul>
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* }}}
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*/
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#ifndef _BW_PAN_H
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#define _BW_PAN_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <bw_common.h>
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/*! api {{{
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* #### bw_pan_coeffs
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* ```>>> */
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typedef struct _bw_pan_coeffs bw_pan_coeffs;
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/*! <<<```
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* Coefficients and related.
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*
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* #### bw_pan_init()
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* ```>>> */
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static inline void bw_pan_init(bw_pan_coeffs *BW_RESTRICT coeffs);
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/*! <<<```
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* Initializes input parameter values in `coeffs`.
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*
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* #### bw_pan_set_sample_rate()
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* ```>>> */
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static inline void bw_pan_set_sample_rate(bw_pan_coeffs *BW_RESTRICT coeffs, float sample_rate);
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/*! <<<```
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* Sets the `sample_rate` (Hz) value in `coeffs`.
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*
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* #### bw_pan_reset_coeffs()
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* ```>>> */
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static inline void bw_pan_reset_coeffs(bw_pan_coeffs *BW_RESTRICT coeffs);
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/*! <<<```
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* Resets coefficients in `coeffs` to assume their target values.
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*
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* #### bw_pan_update_coeffs_ctrl()
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* ```>>> */
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static inline void bw_pan_update_coeffs_ctrl(bw_pan_coeffs *BW_RESTRICT coeffs);
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/*! <<<```
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* Triggers control-rate update of coefficients in `coeffs`.
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*
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* #### bw_pan_update_coeffs_audio()
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* ```>>> */
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static inline void bw_pan_update_coeffs_audio(bw_pan_coeffs *BW_RESTRICT coeffs);
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/*! <<<```
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* Triggers audio-rate update of coefficients in `coeffs`.
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*
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* #### bw_pan_process1()
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* ```>>> */
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static inline float bw_pan_process1(const bw_pan_coeffs *BW_RESTRICT coeffs, float x, float *BW_RESTRICT y_l, float *BW_RESTRICT y_r);
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/*! <<<```
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* Processes one input sample `x` using `coeffs`, while using and updating
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* `state`. The left and right output samples are put into `y_l` (left) and
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* `y_r` (right) respectively.
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*
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* #### bw_pan_process()
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* ```>>> */
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static inline void bw_pan_process(bw_pan_coeffs *BW_RESTRICT coeffs, const float *x, float *y_l, float *y_r, int n_samples);
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/*! <<<```
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* Processes the first `n_samples` of the input buffer `x` and fills the
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* first `n_samples` of the output buffers `y_l` (left) and `y_r` (right), if
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* they are not `NULL`, while using and updating `coeffs` (control and audio
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* rate).
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*
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* #### bw_pan_set_pan()
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* ```>>> */
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static inline void bw_pan_set_pan(bw_pan_coeffs *BW_RESTRICT coeffs, float value);
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/*! <<<```
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* Sets the panning `value`, where `-1.f` corresponds to hard left pan, `0.f`
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* to center pan, and `1.f` to hard right pan.
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*
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* Default value: `0.f`.
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* }}} */
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/*** Implementation ***/
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/* WARNING: This part of the file is not part of the public API. Its content may
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* change at any time in future versions. Please, do not use it directly. */
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#include <bw_math.h>
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#include <bw_gain.h>
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struct _bw_pan_coeffs {
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// Sub-components
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bw_gain_coeffs l_coeffs;
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bw_gain_coeffs r_coeffs;
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// Parameters
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float pan;
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float pan_prev;
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};
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static inline void bw_pan_init(bw_pan_coeffs *BW_RESTRICT coeffs) {
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bw_gain_init(&coeffs->l_coeffs);
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bw_gain_init(&coeffs->r_coeffs);
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coeffs->pan = 0.f;
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}
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static inline void bw_pan_set_sample_rate(bw_pan_coeffs *BW_RESTRICT coeffs, float sample_rate) {
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bw_gain_set_sample_rate(&coeffs->l_coeffs, sample_rate);
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bw_gain_set_sample_rate(&coeffs->r_coeffs, sample_rate);
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}
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static inline void _bw_pan_do_update_coeffs(bw_gain_coeffs *BW_RESTRICT coeffs, char force) {
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if (force || coeffs->pan != coeffs->pan_prev) {
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const float k = 0.125f * coeffs->pan + 0.125f;
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bw_gain_set_gain_lin(&coeffs->l_coeffs, bw_cos2pif_3(k));
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bw_gain_set_gain_lin(&coeffs->r_coeffs, bw_sin2pif_3(k));
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coeffs->pan_prev = coeffs->pan;
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}
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}
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static inline void bw_pan_reset_coeffs(bw_pan_coeffs *BW_RESTRICT coeffs) {
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_bw_pan_do_update_coeffs(coeffs, 1);
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bw_gain_reset_coeffs(&coeffs->l_coeffs);
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bw_gain_reset_coeffs(&coeffs->r_coeffs);
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}
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static inline void bw_pan_update_coeffs_ctrl(bw_pan_coeffs *BW_RESTRICT coeffs) {
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_bw_pan_do_update_coeffs(coeffs, 0);
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bw_gain_update_coeffs_ctrl(&coeffs->l_coeffs);
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bw_gain_update_coeffs_ctrl(&coeffs->r_coeffs);
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}
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static inline void bw_pan_update_coeffs_audio(bw_pan_coeffs *BW_RESTRICT coeffs) {
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bw_gain_update_coeffs_audio(&coeffs->l_coeffs);
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bw_gain_update_coeffs_audio(&coeffs->r_coeffs);
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}
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static inline float bw_pan_process1(const bw_pan_coeffs *BW_RESTRICT coeffs, float x, float *BW_RESTRICT y_l, float *BW_RESTRICT y_r) {
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*y_l = bw_gain_process1(&coeffs->l_coeffs, x);
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*y_r = bw_gain_process1(&coeffs->r_coeffs, x);
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}
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static inline void bw_pan_process(bw_pan_coeffs *BW_RESTRICT coeffs, const float *x, float *y_l, float *y_r, int n_samples) {
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bw_pan_update_coeffs_ctrl(coeffs);
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if (y_l != NULL) {
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if (y_r != NULL) {
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for (int i = 0; i < n_samples; i++) {
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bw_pan_update_coeffs_audio(coeffs);
|
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bw_pan_process1(coeffs, state, x[i], y_l + i, y_r + i);
|
||||
}
|
||||
} else {
|
||||
for (int i = 0; i < n_samples; i++) {
|
||||
bw_pan_update_coeffs_audio(coeffs);
|
||||
float r;
|
||||
bw_pan_process1(coeffs, state, x[i], y_l + i, &r);
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if (y_r != NULL) {
|
||||
for (int i = 0; i < n_samples; i++) {
|
||||
bw_pan_update_coeffs_audio(coeffs);
|
||||
float l;
|
||||
bw_pan_process1(coeffs, state, x[i], &l, y_r + i);
|
||||
}
|
||||
} else {
|
||||
for (int i = 0; i < n_samples; i++) {
|
||||
bw_pan_update_coeffs_audio(coeffs);
|
||||
float l, r;
|
||||
bw_pan_process1(coeffs, state, x[i], &l, &r);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static inline void bw_pan_set_pan(bw_pan_coeffs *BW_RESTRICT coeffs, float value) {
|
||||
coeffs->pan = value;
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
@ -1,7 +1,7 @@
|
||||
/*
|
||||
* Brickworks
|
||||
*
|
||||
* Copyright (C) 2022 Orastron Srl unipersonale
|
||||
* Copyright (C) 2022, 2023 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
|
||||
@ -20,7 +20,7 @@
|
||||
|
||||
/*!
|
||||
* module_type {{{ dsp }}}
|
||||
* version {{{ 0.2.0 }}}
|
||||
* version {{{ 0.3.0 }}}
|
||||
* requires {{{ bw_config bw_common bw_math bw_one_pole }}}
|
||||
* description {{{
|
||||
* Phase generator with portamento and exponential frequency modulation.
|
||||
@ -29,6 +29,11 @@
|
||||
* }}}
|
||||
* changelog {{{
|
||||
* <ul>
|
||||
* <li>Version <strong>0.3.0</strong>:
|
||||
* <ul>
|
||||
* <li>Added `BW_RESTRICT` to `bw_phase_gen_process1\*()`.</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Version <strong>0.2.0</strong>:
|
||||
* <ul>
|
||||
* <li>Refactored API.</li>
|
||||
@ -103,8 +108,8 @@ static inline void bw_phase_gen_update_coeffs_audio(bw_phase_gen_coeffs *BW_REST
|
||||
*
|
||||
* #### bw_phase_gen_process1\*()
|
||||
* ```>>> */
|
||||
static inline void bw_phase_gen_process1(const bw_phase_gen_coeffs *BW_RESTRICT coeffs, bw_phase_gen_state *BW_RESTRICT state, float *y, float *y_phase_inc);
|
||||
static inline void bw_phase_gen_process1_mod(const bw_phase_gen_coeffs *BW_RESTRICT coeffs, bw_phase_gen_state *BW_RESTRICT state, float x_mod, float *y, float *y_phase_inc);
|
||||
static inline void bw_phase_gen_process1(const bw_phase_gen_coeffs *BW_RESTRICT coeffs, bw_phase_gen_state *BW_RESTRICT state, float *BW_RESTRICT y, float *BW_RESTRICT y_phase_inc);
|
||||
static inline void bw_phase_gen_process1_mod(const bw_phase_gen_coeffs *BW_RESTRICT coeffs, bw_phase_gen_state *BW_RESTRICT state, float x_mod, float *BW_RESTRICT y, float *BW_RESTRICT y_phase_inc);
|
||||
/*! <<<```
|
||||
* These functions generate and return one sample using `coeffs`, while using
|
||||
* and updating `state`, and put the corresponding phase increment value in
|
||||
@ -214,12 +219,12 @@ static inline float _bw_phase_gen_update_phase(bw_phase_gen_state *BW_RESTRICT s
|
||||
return state->phase;
|
||||
}
|
||||
|
||||
static inline void bw_phase_gen_process1(const bw_phase_gen_coeffs *BW_RESTRICT coeffs, bw_phase_gen_state *BW_RESTRICT state, float *y, float *y_phase_inc) {
|
||||
static inline void bw_phase_gen_process1(const bw_phase_gen_coeffs *BW_RESTRICT coeffs, bw_phase_gen_state *BW_RESTRICT state, float *BW_RESTRICT y, float *BW_RESTRICT y_phase_inc) {
|
||||
*y_phase_inc = bw_one_pole_get_y_z1(&coeffs->portamento_state);
|
||||
*y = _bw_phase_gen_update_phase(state, *y_phase_inc);
|
||||
}
|
||||
|
||||
static inline void bw_phase_gen_process1_mod(const bw_phase_gen_coeffs *BW_RESTRICT coeffs, bw_phase_gen_state *BW_RESTRICT state, float x_mod, float *y, float *y_phase_inc) {
|
||||
static inline void bw_phase_gen_process1_mod(const bw_phase_gen_coeffs *BW_RESTRICT coeffs, bw_phase_gen_state *BW_RESTRICT state, float x_mod, float *BW_RESTRICT y, float *BW_RESTRICT y_phase_inc) {
|
||||
*y_phase_inc = bw_one_pole_get_y_z1(&coeffs->portamento_state) * bw_pow2f_3(x_mod);
|
||||
*y = _bw_phase_gen_update_phase(state, *y_phase_inc);
|
||||
}
|
||||
|
||||
@ -31,6 +31,7 @@
|
||||
* <li>Version <strong>0.3.0</strong>:
|
||||
* <ul>
|
||||
* <li>Added prewarping control.</li>
|
||||
* <li>Added `BW_RESTRICT` to `bw_svf_process1()`.</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Version <strong>0.2.0</strong>:
|
||||
@ -107,7 +108,7 @@ static inline void bw_svf_update_coeffs_audio(bw_svf_coeffs *BW_RESTRICT coeffs)
|
||||
*
|
||||
* #### bw_svf_process1()
|
||||
* ```>>> */
|
||||
static inline void bw_svf_process1(const bw_svf_coeffs *BW_RESTRICT coeffs, bw_svf_state *BW_RESTRICT state, float x, float *y_lp, float *y_bp, float *y_hp);
|
||||
static inline void bw_svf_process1(const bw_svf_coeffs *BW_RESTRICT coeffs, bw_svf_state *BW_RESTRICT state, float x, float *BW_RESTRICT y_lp, float *BW_RESTRICT y_bp, float *BW_RESTRICT y_hp);
|
||||
/*! <<<```
|
||||
* Processes one input sample `x` using `coeffs`, while using and updating
|
||||
* `state`. The lowpass, bandpass, and highpass output samples are put into
|
||||
@ -260,7 +261,7 @@ static inline void bw_svf_update_coeffs_audio(bw_svf_coeffs *BW_RESTRICT coeffs)
|
||||
_bw_svf_do_update_coeffs(coeffs, 0);
|
||||
}
|
||||
|
||||
static inline void bw_svf_process1(const bw_svf_coeffs *BW_RESTRICT coeffs, bw_svf_state *BW_RESTRICT state, float x, float *y_lp, float *y_bp, float *y_hp) {
|
||||
static inline void bw_svf_process1(const bw_svf_coeffs *BW_RESTRICT coeffs, bw_svf_state *BW_RESTRICT state, float x, float *BW_RESTRICT y_lp, float *BW_RESTRICT y_bp, float *BW_RESTRICT y_hp) {
|
||||
const float kk = coeffs->kf * state->cutoff_z1;
|
||||
const float lp_xz1 = state->lp_z1 - kk * state->bp_z1;
|
||||
const float bp_xz1 = state->bp_z1 - kk * state->hp_z1;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user