LadspaEffect.h

Go to the documentation of this file.

/*
 * LadspaEffect.h - class for handling LADSPA effect plugins
 *
 * Copyright (c) 2006-2008 Danny McRae <khjklujn/at/users.sourceforge.net>
 * Copyright (c) 2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
 *
 * 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.
 *
 */
 
#ifndef _LADSPA_EFFECT_H
#define _LADSPA_EFFECT_H
 
#include <QMutex>
 
#include "Effect.h"
#include "ladspa.h"
#include "LadspaControls.h"
#include "LadspaManager.h"
 
namespace lmms
{
 
struct port_desc_t;
using multi_proc_t = QVector<port_desc_t*>;
 
class LadspaEffect : public Effect
{
        Q_OBJECT
public:
        LadspaEffect( Model * _parent,
                        const Descriptor::SubPluginFeatures::Key * _key );
        ~LadspaEffect() override;
 
        ProcessStatus processImpl(SampleFrame* buf, const f_cnt_t frames) override;
 
        void setControl( int _control, LADSPA_Data _data );
 
        EffectControls * controls() override
        {
                return m_controls;
        }
 
        inline const multi_proc_t & getPortControls()
        {
                return m_portControls;
        }
 
        ch_cnt_t processorCount() const
        {
                return m_processors;
        }
 
private slots:
        void changeSampleRate();
 
 
private:
        void pluginInstantiation();
        void pluginDestruction();
 
        static sample_rate_t maxSamplerate( const QString & _name );
 
        QMutex m_pluginMutex;
        LadspaControls * m_controls;
 
        ladspa_key_t m_key;
        int m_portCount;
        bool m_inPlaceBroken;
 
        const LADSPA_Descriptor * m_descriptor;
        QVector<LADSPA_Handle> m_handles;
 
        QVector<multi_proc_t> m_ports;
        multi_proc_t m_portControls;
 
        ch_cnt_t m_processors = 1;
};
 
 
} // namespace lmms
 
#endif