/*
 * This file is part of libsidplayfp, a SID player engine.
 *
 * Copyright 2011-2015 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.
 */

#define FILTER6581_CPP

#include "Filter6581.h"

#include "Integrator.h"

namespace reSIDfp
{

Filter6581::~Filter6581()
{
    delete [] f0_dac;
}

void Filter6581::updatedCenterFrequency()
{
    const unsigned short Vw = f0_dac[fc];
    hpIntegrator->setVw(Vw);
    bpIntegrator->setVw(Vw);
}

void Filter6581::updatedMixing()
{
    currentGain = gain[vol];

    unsigned int ni = 0;
    unsigned int no = 0;

    (filt1 ? ni : no)++;
    (filt2 ? ni : no)++;

    if (filt3) ni++;
    else if (!voice3off) no++;

    (filtE ? ni : no)++;

    currentSummer = summer[ni];

    if (lp) no++;
    if (bp) no++;
    if (hp) no++;

    currentMixer = mixer[no];
}

void Filter6581::setFilterCurve(double curvePosition)
{
    delete [] f0_dac;
    f0_dac = FilterModelConfig::getInstance()->getDAC(curvePosition);
    updatedCenterFrequency();
}

} // namespace reSIDfp