Chris@49: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@52:     Sonic Visualiser
Chris@52:     An audio file viewer and annotation editor.
Chris@52:     Centre for Digital Music, Queen Mary, University of London.
Chris@52:     This file copyright 2006 Chris Cannam.
Chris@0:     
Chris@52:     This program is free software; you can redistribute it and/or
Chris@52:     modify it under the terms of the GNU General Public License as
Chris@52:     published by the Free Software Foundation; either version 2 of the
Chris@52:     License, or (at your option) any later version.  See the file
Chris@52:     COPYING included with this distribution for more information.
Chris@0: */
Chris@0: 
Chris@0: /*
Chris@0:    This is a modified version of a source file from the 
Chris@0:    Rosegarden MIDI and audio sequencer and notation editor.
Chris@17:    This file copyright 2000-2006 Chris Cannam.
Chris@0: */
Chris@0: 
Chris@0: #ifndef _REALTIME_PLUGIN_FACTORY_H_
Chris@0: #define _REALTIME_PLUGIN_FACTORY_H_
Chris@0: 
Chris@0: #include <QString>
Chris@0: #include <vector>
Chris@0: 
Chris@0: class RealTimePluginInstance;
Chris@0: 
Chris@0: class RealTimePluginFactory
Chris@0: {
Chris@0: public:
Chris@0:     static RealTimePluginFactory *instance(QString pluginType);
Chris@0:     static RealTimePluginFactory *instanceFor(QString identifier);
Chris@0:     static std::vector<QString> getAllPluginIdentifiers();
Chris@0:     static void enumerateAllPlugins(std::vector<QString> &);
Chris@0: 
Chris@0:     static void setSampleRate(int sampleRate) { m_sampleRate = sampleRate; }
Chris@0: 
Chris@0:     /**
Chris@0:      * Look up the plugin path and find the plugins in it.  Called 
Chris@0:      * automatically after construction of a factory.
Chris@0:      */
Chris@0:     virtual void discoverPlugins() = 0;
Chris@0: 
Chris@0:     /**
Chris@0:      * Return a reference to a list of all plugin identifiers that can
Chris@0:      * be created by this factory.
Chris@0:      */
Chris@0:     virtual const std::vector<QString> &getPluginIdentifiers() const = 0;
Chris@0: 
Chris@0:     /**
Chris@0:      * Append to the given list descriptions of all the available
Chris@0:      * plugins and their ports.  This is in a standard format, see
Chris@0:      * the LADSPA implementation for details.
Chris@0:      */
Chris@0:     virtual void enumeratePlugins(std::vector<QString> &list) = 0;
Chris@0: 
Chris@0:     /**
Chris@0:      * Instantiate a plugin.
Chris@0:      */
Chris@0:     virtual RealTimePluginInstance *instantiatePlugin(QString identifier,
Chris@0: 						      int clientId,
Chris@0: 						      int position,
Chris@0: 						      unsigned int sampleRate,
Chris@0: 						      unsigned int blockSize,
Chris@0: 						      unsigned int channels) = 0;
Chris@0: 
Chris@0: protected:
Chris@0:     RealTimePluginFactory() { }
Chris@0: 
Chris@0:     // for call by RealTimePluginInstance dtor
Chris@0:     virtual void releasePlugin(RealTimePluginInstance *, QString identifier) = 0;
Chris@0:     friend class RealTimePluginInstance;
Chris@0: 
Chris@0:     static int m_sampleRate;
Chris@0: };
Chris@0: 
Chris@0: #endif