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820a06eeff
* Redesign Stereophonic Matrix * Redesign take 2 * Design update * center middle lines to knobs * Make the knob arc start from the center
124 lines
2.7 KiB
C++
124 lines
2.7 KiB
C++
/*
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* stereo_matrix.cpp - stereo-matrix-effect-plugin
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*
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* Copyright (c) 2008 Paul Giblock <drfaygo/at/gmail/dot/com>
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*
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* This file is part of LMMS - http://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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#include "stereo_matrix.h"
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#include "embed.cpp"
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extern "C"
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{
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Plugin::Descriptor PLUGIN_EXPORT stereomatrix_plugin_descriptor =
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{
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STRINGIFY( PLUGIN_NAME ),
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"Stereo Matrix",
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QT_TRANSLATE_NOOP( "pluginBrowser",
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"Plugin for freely manipulating stereo output" ),
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"Paul Giblock <drfaygo/at/gmail.com>",
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0x0100,
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Plugin::Effect,
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new PluginPixmapLoader( "logo" ),
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NULL,
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NULL
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} ;
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}
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stereoMatrixEffect::stereoMatrixEffect(
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Model * _parent,
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const Descriptor::SubPluginFeatures::Key * _key ) :
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Effect( &stereomatrix_plugin_descriptor, _parent, _key ),
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m_smControls( this )
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{
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}
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stereoMatrixEffect::~stereoMatrixEffect()
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{
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}
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bool stereoMatrixEffect::processAudioBuffer( sampleFrame * _buf,
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const fpp_t _frames )
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{
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// This appears to be used for determining whether or not to continue processing
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// audio with this effect
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if( !isEnabled() || !isRunning() )
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{
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return( false );
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}
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double out_sum = 0.0;
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for( fpp_t f = 0; f < _frames; ++f )
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{
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const float d = dryLevel();
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const float w = wetLevel();
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sample_t l = _buf[f][0];
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sample_t r = _buf[f][1];
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// Init with dry-mix
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_buf[f][0] = l * d;
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_buf[f][1] = r * d;
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// Add it wet
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_buf[f][0] += ( m_smControls.m_llModel.value( f ) * l +
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m_smControls.m_rlModel.value( f ) * r ) * w;
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_buf[f][1] += ( m_smControls.m_lrModel.value( f ) * l +
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m_smControls.m_rrModel.value( f ) * r ) * w;
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out_sum += _buf[f][0]*_buf[f][0] + _buf[f][1]*_buf[f][1];
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}
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checkGate( out_sum / _frames );
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return( isRunning() );
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}
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extern "C"
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{
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// necessary for getting instance out of shared lib
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Plugin * PLUGIN_EXPORT lmms_plugin_main( Model * _parent, void * _data )
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{
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return( new stereoMatrixEffect( _parent,
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static_cast<const Plugin::Descriptor::SubPluginFeatures::Key *>(
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_data ) ) );
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}
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}
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