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79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/*
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* Dispersion.h
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*
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* Copyright (c) 2023 Lost Robot <r94231/at/gmail/dot/com>
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*
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* This file is part of LMMS - https://lmms.io
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program 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 GNU
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* 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
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef LMMS_DISPERSION_H
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#define LMMS_DISPERSION_H
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#include "DispersionControls.h"
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#include "Effect.h"
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#include "lmms_math.h"
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namespace lmms
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{
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constexpr inline int MAX_DISPERSION_FILTERS = 999;
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class DispersionEffect : public Effect
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{
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public:
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DispersionEffect(Model* parent, const Descriptor::SubPluginFeatures::Key* key);
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~DispersionEffect() override = default;
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bool processAudioBuffer(sampleFrame* buf, const fpp_t frames) override;
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EffectControls* controls() override
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{
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return &m_dispersionControls;
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}
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void runDispersionAP(const int filtNum, const float apCoeff1, const float apCoeff2, std::array<sample_t, 2> &put);
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private:
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DispersionControls m_dispersionControls;
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float m_sampleRate;
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int m_amountVal;
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using Filter = std::array<sample_t, MAX_DISPERSION_FILTERS * 2>;
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struct FilterState {
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Filter x0{};
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Filter x1{};
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Filter y0{};
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Filter y1{};
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};
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FilterState m_state = {};
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std::array<float, 2> m_feedbackVal{};
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std::array<float, 2> m_integrator{};
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friend class DispersionControls;
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};
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} // namespace lmms
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#endif // LMMS_DISPERSION_H
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