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793c5ab7ff
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@482 0778d3d1-df1d-0410-868b-ea421aaaa00d
174 lines
3.1 KiB
C++
174 lines
3.1 KiB
C++
#ifndef SINGLE_SOURCE_COMPILE
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/*
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* effect_chain.cpp - class for processing and effects chain
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*
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* Copyright (c) 2006-2007 Danny McRae <khjklujn/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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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 "effect_chain.h"
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#include "engine.h"
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effectChain::effectChain( void ) :
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m_bypassed( TRUE )
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{
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}
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effectChain::~effectChain()
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{
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for( effect_list_t::size_type eff = 0; eff < m_effects.count(); eff++ )
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{
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delete m_effects[eff];
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}
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m_effects.clear();
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}
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void FASTCALL effectChain::appendEffect( effect * _effect )
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{
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engine::getMixer()->lock();
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m_effects.append( _effect );
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engine::getMixer()->unlock();
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}
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void FASTCALL effectChain::removeEffect( effect * _effect )
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{
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engine::getMixer()->lock();
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m_effects.erase( qFind( m_effects.begin(), m_effects.end(), _effect ) );
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engine::getMixer()->unlock();
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}
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void FASTCALL effectChain::moveDown( effect * _effect )
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{
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if( _effect != m_effects.last() )
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{
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int i = 0;
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for( effect_list_t::iterator it = m_effects.begin();
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it != m_effects.end(); it++, i++ )
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{
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if( (*it) == _effect )
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{
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break;
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}
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}
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effect * temp = m_effects[i + 1];
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m_effects[i + 1] = _effect;
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m_effects[i] = temp;
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}
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}
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void FASTCALL effectChain::moveUp( effect * _effect )
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{
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if( _effect != m_effects.first() )
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{
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int i = 0;
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for( effect_list_t::iterator it = m_effects.begin();
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it != m_effects.end(); it++, i++ )
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{
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if( (*it) == _effect )
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{
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break;
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}
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}
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effect * temp = m_effects[i - 1];
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m_effects[i - 1] = _effect;
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m_effects[i] = temp;
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}
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}
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bool FASTCALL effectChain::processAudioBuffer( surroundSampleFrame * _buf,
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const fpab_t _frames )
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{
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if( m_bypassed )
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{
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return( FALSE );
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}
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bool more_effects = FALSE;
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for( effect_list_t::iterator it = m_effects.begin();
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it != m_effects.end(); it++ )
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{
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more_effects |= (*it)->processAudioBuffer( _buf, _frames );
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}
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return( more_effects );
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}
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void effectChain::startRunning( void )
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{
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if( m_bypassed )
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{
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return;
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}
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for( effect_list_t::iterator it = m_effects.begin();
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it != m_effects.end(); it++ )
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{
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(*it)->startRunning();
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}
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}
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bool effectChain::isRunning( void )
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{
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if( m_bypassed )
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{
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return( FALSE );
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}
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bool running = FALSE;
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for( effect_list_t::iterator it = m_effects.begin();
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it != m_effects.end() || !running; it++ )
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{
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running = (*it)->isRunning() && running;
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}
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return( running );
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}
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#endif
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