136 lines
3.3 KiB
C++
136 lines
3.3 KiB
C++
/*
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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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#ifndef BWPP_COMB_H
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#define BWPP_COMB_H
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#include <bw_comb.h>
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#include <array>
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namespace Brickworks {
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/*! api {{{
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* ##### Brickworks::Comb
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* ```>>> */
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template<size_t N_CHANNELS>
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class Comb {
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public:
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Comb(float maxDelay = 1.f);
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~Comb();
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void setSampleRate(float sampleRate);
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void reset();
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void process(
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std::array<const float *, N_CHANNELS> x,
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std::array<float *, N_CHANNELS> y,
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int nSamples);
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void setDelayFF(float value);
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void setDelayFB(float value);
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void setCoeffBlend(float value);
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void setCoeffFF(float value);
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void setCoeffFB(float value);
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/*! <<<...
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* }
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* ```
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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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private:
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bw_comb_coeffs coeffs;
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bw_comb_state states[N_CHANNELS];
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bw_comb_state *statesP[N_CHANNELS];
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void *mem;
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};
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template<size_t N_CHANNELS>
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inline Comb<N_CHANNELS>::Comb(float maxDelay) {
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bw_comb_init(&coeffs, maxDelay);
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for (size_t i = 0; i < N_CHANNELS; i++)
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statesP[i] = states + i;
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mem = nullptr;
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}
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template<size_t N_CHANNELS>
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inline Comb<N_CHANNELS>::~Comb() {
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if (mem != nullptr)
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operator delete(mem);
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}
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template<size_t N_CHANNELS>
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inline void Comb<N_CHANNELS>::setSampleRate(float sampleRate) {
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bw_comb_set_sample_rate(&coeffs, sampleRate);
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size_t req = bw_comb_mem_req(&coeffs);
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if (mem != nullptr)
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operator delete(mem);
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mem = operator new(req * N_CHANNELS);
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void *m = mem;
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for (size_t i = 0; i < N_CHANNELS; i++, m = static_cast<char *>(m) + req)
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bw_comb_mem_set(&coeffs, states + i, m);
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}
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template<size_t N_CHANNELS>
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inline void Comb<N_CHANNELS>::reset() {
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bw_comb_reset_coeffs(&coeffs);
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for (size_t i = 0; i < N_CHANNELS; i++)
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bw_comb_reset_state(&coeffs, states + i);
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}
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template<size_t N_CHANNELS>
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inline void Comb<N_CHANNELS>::process(
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std::array<const float *, N_CHANNELS> x,
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std::array<float *, N_CHANNELS> y,
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int nSamples) {
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bw_comb_process_multi(&coeffs, statesP, x.data(), y.data(), N_CHANNELS, nSamples);
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}
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template<size_t N_CHANNELS>
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inline void Comb<N_CHANNELS>::setDelayFF(float value) {
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bw_comb_set_delay_ff(&coeffs, value);
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}
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template<size_t N_CHANNELS>
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inline void Comb<N_CHANNELS>::setDelayFB(float value) {
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bw_comb_set_delay_fb(&coeffs, value);
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}
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template<size_t N_CHANNELS>
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inline void Comb<N_CHANNELS>::setCoeffBlend(float value) {
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bw_comb_set_coeff_blend(&coeffs, value);
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}
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template<size_t N_CHANNELS>
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inline void Comb<N_CHANNELS>::setCoeffFF(float value) {
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bw_comb_set_coeff_ff(&coeffs, value);
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}
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template<size_t N_CHANNELS>
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inline void Comb<N_CHANNELS>::setCoeffFB(float value) {
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bw_comb_set_coeff_fb(&coeffs, value);
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}
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}
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#endif
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