Filter8580.h

/*
 * This file is part of libsidplayfp, a SID player engine.
 *
 * Copyright 2011-2026 Leandro Nini <drfiemost@users.sourceforge.net>
 * Copyright 2007-2010 Antti Lankila
 * Copyright 2004,2010 Dag Lem <resid@nimrod.no>
 *
 * This program 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
 
#ifndef FILTER8580_H
#define FILTER8580_H
 
#include "Filter.h"
#include "FilterModelConfig8580.h"
#include "Integrator8580.h"
 
#include "siddefs-fp.h"
 
namespace reSIDfp
{
 
class Integrator8580;
 
class Filter8580 final : public Filter
{
    friend class State;
 
private:
    Integrator8580 hpIntegrator;
 
    Integrator8580 bpIntegrator;
 
    double cp;
 
protected:
    void updateCenterFrequency() override;
 
    void restartIntegrators() override { hpIntegrator.restart(); bpIntegrator.restart(); }
 
    int32_t getNormalizedMixerVoice(float v, uint8_t env) const override
    {
        return getNormalizedVoice(v, env);
    }
 
public:
    Filter8580() :
        Filter(*FilterModelConfig8580::getInstance(), hpIntegrator, bpIntegrator),
        hpIntegrator(*FilterModelConfig8580::getInstance()),
        bpIntegrator(*FilterModelConfig8580::getInstance())
    {
        setFilterCurve(0.5);
    }
 
    ~Filter8580() override;
 
    void setFilterCurve(double curvePosition);
};
 
} // namespace reSIDfp
 
#endif