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lmms/plugins/Eq/EqEffect.cpp
Levin Oehlmann f742710758 Macro cleanup (#6095) 
Summary:

* `NULL` -> `nullptr`
* `gui` -> Function `getGUI()`
* `pluginFactory` -> Function `getPluginFactory()`
* `assert` (redefinition) -> using `NDEBUG` instead, which standard `assert` respects.
* `powf` (C stdlib symbol clash) -> removed and all expansions replaced with calls to `std::pow`.
* `exp10` (nonstandard function symbol clash) -> removed and all expansions replaced with calls to `std::pow`.
* `PATH_DEV_DSP` -> File-scope QString of identical name and value.
* `VST_SNC_SHM_KEY_FILE` -> constexpr char* with identical name and value.
* `MM_ALLOC` and `MM_FREE` -> Functions with identical name and implementation.
* `INVAL`, `OUTVAL`, etc. for automation nodes -> Functions with identical names and implementations.
* BandLimitedWave.h: All integer constant macros replaced with constexpr ints of same name and value.
* `FAST_RAND_MAX` -> constexpr int of same name and value.
* `QSTR_TO_STDSTR` -> Function with identical name and equivalent implementation.
* `CCONST` -> constexpr function template with identical name and implementation.
* `F_OPEN_UTF8` -> Function with identical name and equivalent implementation.
* `LADSPA_PATH_SEPARATOR` -> constexpr char with identical name and value.
* `UI_CTRL_KEY` -> constexpr char* with identical name and value.
* `ALIGN_SIZE` -> Renamed to `LMMS_ALIGN_SIZE` and converted from a macro to a constexpr size_t.
* `JACK_MIDI_BUFFER_MAX` -> constexpr size_t with identical name and value.
* versioninfo.h: `PLATFORM`, `MACHINE` and `COMPILER_VERSION` -> prefixed with `LMMS_BUILDCONF_` and converted from macros to constexpr char* literals.
* Header guard _OSCILLOSCOPE -> renamed to OSCILLOSCOPE_H
* Header guard _TIME_DISPLAY_WIDGET -> renamed to TIME_DISPLAY_WIDGET_H
* C-style typecasts in DrumSynth.cpp have been replaced with `static_cast`.
* constexpr numerical constants are initialized with assignment notation instead of curly brace intializers.
* In portsmf, `Alg_seq::operator[]` will throw an exception instead of returning null if the operator index is out of range.

Additionally, in many places, global constants that were declared as `const T foo = bar;` were changed from const to constexpr, leaving them const and making them potentially evaluable at compile time.

Some macros that only appeared in single source files and were unused in those files have been removed entirely.
2021-09-30 18:01:27 +02:00

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/*
* eqeffect.cpp - defination of EqEffect class.
*
* Copyright (c) 2014 David French <dave/dot/french3/at/googlemail/dot/com>
*
* This file is part of LMMS - https://lmms.io
*
* 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 (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#include "EqEffect.h"
#include "Engine.h"
#include "EqFader.h"
#include "interpolation.h"
#include "lmms_math.h"
#include "embed.h"
#include "plugin_export.h"
extern "C"
{
Plugin::Descriptor PLUGIN_EXPORT eq_plugin_descriptor =
{
STRINGIFY( PLUGIN_NAME ),
"Equalizer",
QT_TRANSLATE_NOOP( "PluginBrowser", "A native eq plugin" ),
"Dave French <contact/dot/dave/dot/french3/at/googlemail/dot/com>",
0x0100,
Plugin::Effect,
new PluginPixmapLoader("logo"),
nullptr,
nullptr,
} ;
}
EqEffect::EqEffect( Model *parent, const Plugin::Descriptor::SubPluginFeatures::Key *key) :
Effect( &eq_plugin_descriptor, parent, key ),
m_eqControls( this ),
m_inGain( 1.0 ),
m_outGain( 1.0 )
{
}
EqEffect::~EqEffect()
{
}
bool EqEffect::processAudioBuffer( sampleFrame *buf, const fpp_t frames )
{
const int sampleRate = Engine::audioEngine()->processingSampleRate();
//wet/dry controls
const float dry = dryLevel();
const float wet = wetLevel();
sample_t dryS[2];
// setup sample exact controls
float hpRes = m_eqControls.m_hpResModel.value();
float lowShelfRes = m_eqControls.m_lowShelfResModel.value();
float para1Bw = m_eqControls.m_para1BwModel.value();
float para2Bw = m_eqControls.m_para2BwModel.value();
float para3Bw = m_eqControls.m_para3BwModel.value();
float para4Bw = m_eqControls.m_para4BwModel.value();
float highShelfRes = m_eqControls.m_highShelfResModel.value();
float lpRes = m_eqControls.m_lpResModel.value();
float hpFreq = m_eqControls.m_hpFeqModel.value();
float lowShelfFreq = m_eqControls.m_lowShelfFreqModel.value();
float para1Freq = m_eqControls.m_para1FreqModel.value();
float para2Freq = m_eqControls.m_para2FreqModel.value();
float para3Freq = m_eqControls.m_para3FreqModel.value();
float para4Freq = m_eqControls.m_para4FreqModel.value();
float highShelfFreq = m_eqControls.m_highShelfFreqModel.value();
float lpFreq = m_eqControls.m_lpFreqModel.value();
bool hpActive = m_eqControls.m_hpActiveModel.value();
bool hp24Active = m_eqControls.m_hp24Model.value();
bool hp48Active = m_eqControls.m_hp48Model.value();
bool lowShelfActive = m_eqControls.m_lowShelfActiveModel.value();
bool para1Active = m_eqControls.m_para1ActiveModel.value();
bool para2Active = m_eqControls.m_para2ActiveModel.value();
bool para3Active = m_eqControls.m_para3ActiveModel.value();
bool para4Active = m_eqControls.m_para4ActiveModel.value();
bool highShelfActive = m_eqControls.m_highShelfActiveModel.value();
bool lpActive = m_eqControls.m_lpActiveModel.value();
bool lp24Active = m_eqControls.m_lp24Model.value();
bool lp48Active = m_eqControls.m_lp48Model.value();
float lowShelfGain = m_eqControls.m_lowShelfGainModel.value();
float para1Gain = m_eqControls.m_para1GainModel.value();
float para2Gain = m_eqControls.m_para2GainModel.value();
float para3Gain = m_eqControls.m_para3GainModel.value();
float para4Gain = m_eqControls.m_para4GainModel.value();
float highShelfGain = m_eqControls.m_highShelfGainModel.value();
//set all filter parameters once per frame, EqFilter handles
//smooth xfading, reducing pops clicks and dc bias offsets
m_hp12.setParameters( sampleRate, hpFreq, hpRes, 1 );
m_hp24.setParameters( sampleRate, hpFreq, hpRes, 1 );
m_hp480.setParameters( sampleRate, hpFreq, hpRes, 1 );
m_hp481.setParameters( sampleRate, hpFreq, hpRes, 1 );
m_lowShelf.setParameters( sampleRate, lowShelfFreq, lowShelfRes, lowShelfGain );
m_para1.setParameters( sampleRate, para1Freq, para1Bw, para1Gain );
m_para2.setParameters( sampleRate, para2Freq, para2Bw, para2Gain );
m_para3.setParameters( sampleRate, para3Freq, para3Bw, para3Gain );
m_para4.setParameters( sampleRate, para4Freq, para4Bw, para4Gain );
m_highShelf.setParameters( sampleRate, highShelfFreq, highShelfRes, highShelfGain );
m_lp12.setParameters( sampleRate, lpFreq, lpRes, 1 );
m_lp24.setParameters( sampleRate, lpFreq, lpRes, 1 );
m_lp480.setParameters( sampleRate, lpFreq, lpRes, 1 );
m_lp481.setParameters( sampleRate, lpFreq, lpRes, 1 );
if( !isEnabled() || !isRunning () )
{
return( false );
}
if( m_eqControls.m_outGainModel.isValueChanged() )
{
m_outGain = dbfsToAmp(m_eqControls.m_outGainModel.value());
}
if( m_eqControls.m_inGainModel.isValueChanged() )
{
m_inGain = dbfsToAmp(m_eqControls.m_inGainModel.value());
}
m_eqControls.m_inProgress = true;
double outSum = 0.0;
for( fpp_t f = 0; f < frames; ++f )
{
outSum += buf[f][0]*buf[f][0] + buf[f][1]*buf[f][1];
}
const float outGain = m_outGain;
sampleFrame m_inPeak = { 0, 0 };
if(m_eqControls.m_analyseInModel.value( true ) && outSum > 0 && m_eqControls.isViewVisible() )
{
m_eqControls.m_inFftBands.analyze( buf, frames );
}
else
{
m_eqControls.m_inFftBands.clear();
}
gain( buf, frames, m_inGain, &m_inPeak );
m_eqControls.m_inPeakL = m_eqControls.m_inPeakL < m_inPeak[0] ? m_inPeak[0] : m_eqControls.m_inPeakL;
m_eqControls.m_inPeakR = m_eqControls.m_inPeakR < m_inPeak[1] ? m_inPeak[1] : m_eqControls.m_inPeakR;
float periodProgress = 0.0f; // percentage of period processed
for( fpp_t f = 0; f < frames; ++f)
{
periodProgress = (float)f / (float)(frames-1);
//wet dry buffer
dryS[0] = buf[f][0];
dryS[1] = buf[f][1];
if( hpActive )
{
buf[f][0] = m_hp12.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_hp12.update( buf[f][1], 1, periodProgress );
if( hp24Active || hp48Active )
{
buf[f][0] = m_hp24.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_hp24.update( buf[f][1], 1, periodProgress );
}
if( hp48Active )
{
buf[f][0] = m_hp480.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_hp480.update( buf[f][1], 1, periodProgress );
buf[f][0] = m_hp481.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_hp481.update( buf[f][1], 1, periodProgress );
}
}
if( lowShelfActive )
{
buf[f][0] = m_lowShelf.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_lowShelf.update( buf[f][1], 1, periodProgress );
}
if( para1Active )
{
buf[f][0] = m_para1.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_para1.update( buf[f][1], 1, periodProgress );
}
if( para2Active )
{
buf[f][0] = m_para2.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_para2.update( buf[f][1], 1, periodProgress );
}
if( para3Active )
{
buf[f][0] = m_para3.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_para3.update( buf[f][1], 1, periodProgress );
}
if( para4Active )
{
buf[f][0] = m_para4.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_para4.update( buf[f][1], 1, periodProgress );
}
if( highShelfActive )
{
buf[f][0] = m_highShelf.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_highShelf.update( buf[f][1], 1, periodProgress );
}
if( lpActive ){
buf[f][0] = m_lp12.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_lp12.update( buf[f][1], 1, periodProgress );
if( lp24Active || lp48Active )
{
buf[f][0] = m_lp24.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_lp24.update( buf[f][1], 1, periodProgress );
}
if( lp48Active )
{
buf[f][0] = m_lp480.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_lp480.update( buf[f][1], 1, periodProgress );
buf[f][0] = m_lp481.update( buf[f][0], 0, periodProgress );
buf[f][1] = m_lp481.update( buf[f][1], 1, periodProgress );
}
}
//apply wet / dry levels
buf[f][1] = ( dry * dryS[1] ) + ( wet * buf[f][1] );
buf[f][0] = ( dry * dryS[0] ) + ( wet * buf[f][0] );
}
sampleFrame outPeak = { 0, 0 };
gain( buf, frames, outGain, &outPeak );
m_eqControls.m_outPeakL = m_eqControls.m_outPeakL < outPeak[0] ? outPeak[0] : m_eqControls.m_outPeakL;
m_eqControls.m_outPeakR = m_eqControls.m_outPeakR < outPeak[1] ? outPeak[1] : m_eqControls.m_outPeakR;
checkGate( outSum / frames );
if(m_eqControls.m_analyseOutModel.value( true ) && outSum > 0 && m_eqControls.isViewVisible() )
{
m_eqControls.m_outFftBands.analyze( buf, frames );
setBandPeaks( &m_eqControls.m_outFftBands , ( int )( sampleRate ) );
}
else
{
m_eqControls.m_outFftBands.clear();
}
m_eqControls.m_inProgress = false;
return isRunning();
}
float EqEffect::peakBand( float minF, float maxF, EqAnalyser *fft, int sr )
{
float peak = -60;
float *b = fft->m_bands;
float h = 0;
for( int x = 0; x < MAX_BANDS; x++, b++ )
{
if( bandToFreq( x ,sr) >= minF && bandToFreq( x,sr ) <= maxF )
{
h = 20 * ( log10( *b / fft->getEnergy() ) );
peak = h > peak ? h : peak;
}
}
return ( peak + 60 ) / 100;
}
void EqEffect::setBandPeaks( EqAnalyser *fft, int samplerate )
{
m_eqControls.m_lowShelfPeakR = m_eqControls.m_lowShelfPeakL =
peakBand( m_eqControls.m_lowShelfFreqModel.value()
* ( 1 - m_eqControls.m_lowShelfResModel.value() * 0.5 ),
m_eqControls.m_lowShelfFreqModel.value(),
fft , samplerate );
m_eqControls.m_para1PeakL = m_eqControls.m_para1PeakR =
peakBand( m_eqControls.m_para1FreqModel.value()
* ( 1 - m_eqControls.m_para1BwModel.value() * 0.5 ),
m_eqControls.m_para1FreqModel.value()
* ( 1 + m_eqControls.m_para1BwModel.value() * 0.5 ),
fft , samplerate );
m_eqControls.m_para2PeakL = m_eqControls.m_para2PeakR =
peakBand( m_eqControls.m_para2FreqModel.value()
* ( 1 - m_eqControls.m_para2BwModel.value() * 0.5 ),
m_eqControls.m_para2FreqModel.value()
* ( 1 + m_eqControls.m_para2BwModel.value() * 0.5 ),
fft , samplerate );
m_eqControls.m_para3PeakL = m_eqControls.m_para3PeakR =
peakBand( m_eqControls.m_para3FreqModel.value()
* ( 1 - m_eqControls.m_para3BwModel.value() * 0.5 ),
m_eqControls.m_para3FreqModel.value()
* ( 1 + m_eqControls.m_para3BwModel.value() * 0.5 ),
fft , samplerate );
m_eqControls.m_para4PeakL = m_eqControls.m_para4PeakR =
peakBand( m_eqControls.m_para4FreqModel.value()
* ( 1 - m_eqControls.m_para4BwModel.value() * 0.5 ),
m_eqControls.m_para4FreqModel.value()
* ( 1 + m_eqControls.m_para4BwModel.value() * 0.5 ),
fft , samplerate );
m_eqControls.m_highShelfPeakL = m_eqControls.m_highShelfPeakR =
peakBand( m_eqControls.m_highShelfFreqModel.value(),
m_eqControls.m_highShelfFreqModel.value()
* ( 1 + m_eqControls.m_highShelfResModel.value() * 0.5 ),
fft, samplerate );
}
extern "C"
{
//needed for getting plugin out of shared lib
PLUGIN_EXPORT Plugin * lmms_plugin_main( Model* parent, void* data )
{
return new EqEffect( parent , static_cast<const Plugin::Descriptor::SubPluginFeatures::Key *>( data ) );
}
}
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