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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7
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8 This program is free software; you can redistribute it and/or
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9 modify it under the terms of the GNU General Public License as
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10 published by the Free Software Foundation; either version 2 of the
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11 License, or (at your option) any later version. See the file
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12 COPYING included with this distribution for more information.
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13 */
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14
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15 /*
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16 This is a modified version of a source file from the
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17 Rosegarden MIDI and audio sequencer and notation editor.
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18 This file copyright 2000-2006 Chris Cannam and Richard Bown.
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19 */
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20
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21 #ifndef _LADSPA_PLUGIN_FACTORY_H_
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22 #define _LADSPA_PLUGIN_FACTORY_H_
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23
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24 #include "RealTimePluginFactory.h"
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25 #include "api/ladspa.h"
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26
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27 #include <vector>
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28 #include <map>
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29 #include <set>
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30 #include <QString>
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31
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32 class LADSPAPluginInstance;
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33
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34 class LADSPAPluginFactory : public RealTimePluginFactory
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35 {
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36 public:
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37 virtual ~LADSPAPluginFactory();
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38
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39 virtual void discoverPlugins();
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40
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41 virtual const std::vector<QString> &getPluginIdentifiers() const;
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42
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43 virtual void enumeratePlugins(std::vector<QString> &list);
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44
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45 virtual const RealTimePluginDescriptor *getPluginDescriptor(QString identifier) const;
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46
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47 virtual RealTimePluginInstance *instantiatePlugin(QString identifier,
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48 int clientId,
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49 int position,
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50 unsigned int sampleRate,
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51 unsigned int blockSize,
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52 unsigned int channels);
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53
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54 virtual QString getPluginCategory(QString identifier);
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55
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56 float getPortMinimum(const LADSPA_Descriptor *, int port);
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57 float getPortMaximum(const LADSPA_Descriptor *, int port);
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58 float getPortDefault(const LADSPA_Descriptor *, int port);
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59 float getPortQuantization(const LADSPA_Descriptor *, int port);
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60 int getPortDisplayHint(const LADSPA_Descriptor *, int port);
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61
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62 protected:
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63 LADSPAPluginFactory();
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64 friend class RealTimePluginFactory;
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65
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66 virtual std::vector<QString> getPluginPath();
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67
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68 virtual std::vector<QString> getLRDFPath(QString &baseUri);
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69
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70 virtual void discoverPlugins(QString soName);
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71 virtual void generateTaxonomy(QString uri, QString base);
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72 virtual void generateFallbackCategories();
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73
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74 virtual void releasePlugin(RealTimePluginInstance *, QString);
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75
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76 virtual const LADSPA_Descriptor *getLADSPADescriptor(QString identifier);
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77
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78 void loadLibrary(QString soName);
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79 void unloadLibrary(QString soName);
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80 void unloadUnusedLibraries();
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81
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82 std::vector<QString> m_identifiers;
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83 std::map<QString, RealTimePluginDescriptor *> m_rtDescriptors;
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84
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85 std::map<QString, QString> m_taxonomy;
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86 std::map<unsigned long, QString> m_lrdfTaxonomy;
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87 std::map<unsigned long, std::map<int, float> > m_portDefaults;
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88
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89 std::set<RealTimePluginInstance *> m_instances;
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90
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91 typedef std::map<QString, void *> LibraryHandleMap;
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92 LibraryHandleMap m_libraryHandles;
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93 };
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94
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95 #endif
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96
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