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/***************************************************************************
enginefilterblock.cpp - description
-------------------
begin : Thu Apr 4 2002
copyright : (C) 2002 by Tue and Ken Haste Andersen
email :
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include <QtDebug>
#include "controlpushbutton.h"
#include "controllogpotmeter.h"
#include "engine/enginefilterblock.h"
#include "engine/enginefilteriir.h"
#include "engine/enginefilter.h"
#include "engine/enginefilterbutterworth8.h"
#include "sampleutil.h"
ControlPotmeter* EngineFilterBlock::s_loEqFreq = NULL;
ControlPotmeter* EngineFilterBlock::s_hiEqFreq = NULL;
ControlPushButton* EngineFilterBlock::s_lofiEq = NULL;
EngineFilterBlock::EngineFilterBlock(const char * group)
{
ilowFreq = 0;
ihighFreq = 0;
blofi = false;
#ifdef __LOFI__
low = new EngineFilterIIR(bessel_lowpass4_DJM800,4);
band = new EngineFilterIIR(bessel_bandpass8_DJM800,8);
high = new EngineFilterIIR(bessel_highpass4_DJM800,4);
qDebug() << "Using LoFi EQs";
#else
//Setup Filter Controls
if (s_loEqFreq == NULL) {
s_loEqFreq = new ControlPotmeter(ConfigKey("[Mixer Profile]", "LoEQFrequency"), 0., 22040);
s_hiEqFreq = new ControlPotmeter(ConfigKey("[Mixer Profile]", "HiEQFrequency"), 0., 22040);
s_lofiEq = new ControlPushButton(ConfigKey("[Mixer Profile]", "LoFiEQs"));
}
high = band = low = NULL;
//Load Defaults
setFilters(true);
#endif
/*
lowrbj = new EngineFilterRBJ();
lowrbj->calc_filter_coeffs(6, 100., 44100., 0.3, 0., true);
midrbj = new EngineFilterRBJ();
midrbj->calc_filter_coeffs(6, 1000., 44100., 0.3, 0., true);
highrbj = new EngineFilterRBJ();
highrbj->calc_filter_coeffs(8, 10000., 48000., 0.3, 0., true);
lowrbj = new EngineFilterRBJ();
lowrbj->calc_filter_coeffs(0, 100., 48000., 0.3., 0., false);
highrbj = new EngineFilterRBJ();
highrbj->calc_filter_coeffs(1, 10000., 48000., 0.3., 0., false);
*/
filterpotLow = new ControlLogpotmeter(ConfigKey(group, "filterLow"), 4.);
filterKillLow = new ControlPushButton(ConfigKey(group, "filterLowKill"));
filterKillLow->setToggleButton(true);
filterpotMid = new ControlLogpotmeter(ConfigKey(group, "filterMid"), 4.);
filterKillMid = new ControlPushButton(ConfigKey(group, "filterMidKill"));
filterKillMid->setToggleButton(true);
filterpotHigh = new ControlLogpotmeter(ConfigKey(group, "filterHigh"), 4.);
filterKillHigh = new ControlPushButton(ConfigKey(group, "filterHighKill"));
filterKillHigh->setToggleButton(true);
m_pTemp1 = new CSAMPLE[MAX_BUFFER_LEN];
m_pTemp2 = new CSAMPLE[MAX_BUFFER_LEN];
m_pTemp3 = new CSAMPLE[MAX_BUFFER_LEN];
memset(m_pTemp1, 0, sizeof(CSAMPLE) * MAX_BUFFER_LEN);
memset(m_pTemp2, 0, sizeof(CSAMPLE) * MAX_BUFFER_LEN);
memset(m_pTemp3, 0, sizeof(CSAMPLE) * MAX_BUFFER_LEN);
}
EngineFilterBlock::~EngineFilterBlock()
{
delete high;
delete band;
delete low;
delete [] m_pTemp3;
delete [] m_pTemp2;
delete [] m_pTemp1;
delete filterpotLow;
delete filterKillLow;
delete filterpotMid;
delete filterKillMid;
delete filterpotHigh;
delete filterKillHigh;
// Delete and clear these static controls. We need to clear them so that
// other instances of EngineFilterBlock won't delete them as well.
delete s_loEqFreq;
s_loEqFreq = NULL;
delete s_hiEqFreq;
s_hiEqFreq = NULL;
delete s_lofiEq;
s_lofiEq = NULL;
}
void EngineFilterBlock::setFilters(bool forceSetting)
{
if((ilowFreq != s_loEqFreq->get()) ||
(ihighFreq != s_hiEqFreq->get()) ||
(blofi != s_lofiEq->get()) || forceSetting)
{
delete low;
delete band;
delete high;
ilowFreq = s_loEqFreq->get();
ihighFreq = s_hiEqFreq->get();
blofi = s_lofiEq->get();
if(blofi)
{
// why is this DJM800 at line ~34 (LOFI ifdef) and just
// bessel_lowpass# here? bkgood
low = new EngineFilterIIR(bessel_lowpass4,4);
band = new EngineFilterIIR(bessel_bandpass,8);
high = new EngineFilterIIR(bessel_highpass4,4);
}
else
{
low = new EngineFilterButterworth8(FILTER_LOWPASS, 44100, s_loEqFreq->get());
band = new EngineFilterButterworth8(FILTER_BANDPASS, 44100, s_loEqFreq->get(), s_hiEqFreq->get());
high = new EngineFilterButterworth8(FILTER_HIGHPASS, 44100, s_hiEqFreq->get());
}
}
}
void EngineFilterBlock::process(const CSAMPLE * pIn, const CSAMPLE * pOut, const int iBufferSize)
{
CSAMPLE * pOutput = (CSAMPLE *)pOut;
float fLow=0.f, fMid=0.f, fHigh=0.f;
if (filterKillLow->get()==0.)
fLow = filterpotLow->get(); //*0.7;
if (filterKillMid->get()==0.)
fMid = filterpotMid->get(); //*1.1;
if (filterKillHigh->get()==0.)
fHigh = filterpotHigh->get(); //*1.2;
#ifndef __LOFI__
setFilters();
#endif
low->process(pIn, m_pTemp1, iBufferSize);
band->process(pIn, m_pTemp2, iBufferSize);
high->process(pIn, m_pTemp3, iBufferSize);
SampleUtil::copy3WithGain(pOutput,
m_pTemp1, fLow,
m_pTemp2, fMid,
m_pTemp3, fHigh, iBufferSize);
}
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