comparison plugin/LADSPAPluginFactory.h @ 0:fc9323a41f5a

start base : Sonic Visualiser sv1-1.0rc1

+/* -*- 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 <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,
+						      unsigned int sampleRate,
+						      unsigned int blockSize,
+						      unsigned 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 std::vector<QString> getPluginPath();
+
+    virtual std::vector<QString> getLRDFPath(QString &baseUri);
+
+    virtual void discoverPlugins(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
+