view plugin/LADSPAPluginFactory.h @ 1247:8f076d02569a piper

Make SVDEBUG always write to a log file -- formerly this was disabled in NDEBUG builds. I think there's little use to that, it just means that we keep adding more cerr debug output because we aren't getting the log we need. And SVDEBUG logging is not usually used in tight loops, I don't think the performance overhead is too serious.

Also update the About box.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

/*
   This is a modified version of a source file from the 
   Rosegarden MIDI and audio sequencer and notation editor.
   This file copyright 2000-2006 Chris Cannam and Richard Bown.
*/

#ifndef _LADSPA_PLUGIN_FACTORY_H_
#define _LADSPA_PLUGIN_FACTORY_H_

#include "RealTimePluginFactory.h"
#include "api/ladspa.h"

#include "PluginScan.h"

#include <vector>
#include <map>
#include <set>
#include <QString>

class LADSPAPluginInstance;

class LADSPAPluginFactory : public RealTimePluginFactory
{
public:
    virtual ~LADSPAPluginFactory();

    virtual void discoverPlugins();

    virtual const std::vector<QString> &getPluginIdentifiers() const;

    virtual void enumeratePlugins(std::vector<QString> &list);

    virtual const RealTimePluginDescriptor *getPluginDescriptor(QString identifier) const;

    virtual RealTimePluginInstance *instantiatePlugin(QString identifier,
						      int clientId,
						      int position,
						      sv_samplerate_t sampleRate,
						      int blockSize,
						      int channels);

    virtual QString getPluginCategory(QString identifier);

    float getPortMinimum(const LADSPA_Descriptor *, int port);
    float getPortMaximum(const LADSPA_Descriptor *, int port);
    float getPortDefault(const LADSPA_Descriptor *, int port);
    float getPortQuantization(const LADSPA_Descriptor *, int port);
    int getPortDisplayHint(const LADSPA_Descriptor *, int port);

protected:
    LADSPAPluginFactory();
    friend class RealTimePluginFactory;

    virtual PluginScan::PluginType getPluginType() const {
        return PluginScan::LADSPAPlugin;
    }

    virtual std::vector<QString> getPluginPath();

    virtual std::vector<QString> getLRDFPath(QString &baseUri);

    virtual void discoverPluginsFrom(QString soName);
    virtual void generateTaxonomy(QString uri, QString base);
    virtual void generateFallbackCategories();

    virtual void releasePlugin(RealTimePluginInstance *, QString);

    virtual const LADSPA_Descriptor *getLADSPADescriptor(QString identifier);

    void loadLibrary(QString soName);
    void unloadLibrary(QString soName);
    void unloadUnusedLibraries();

    std::vector<QString> m_identifiers;
    std::map<QString, RealTimePluginDescriptor *> m_rtDescriptors;

    std::map<QString, QString> m_taxonomy;
    std::map<unsigned long, QString> m_lrdfTaxonomy;
    std::map<unsigned long, std::map<int, float> > m_portDefaults;

    std::set<RealTimePluginInstance *> m_instances;

    typedef std::map<QString, void *> LibraryHandleMap;
    LibraryHandleMap m_libraryHandles;
};

#endif