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1 /* -*- c-basic-offset: 4 -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 A waveform viewer and audio annotation editor.
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5 Chris Cannam, Queen Mary University of London, 2005
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6
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7 This is experimental software. Not for distribution.
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8 */
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9
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10 /*
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11 This is a modified version of a source file from the
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12 Rosegarden MIDI and audio sequencer and notation editor.
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13 This file copyright 2000-2005 Chris Cannam and Richard Bown.
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14 */
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15
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16 #ifndef _LADSPA_PLUGIN_FACTORY_H_
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17 #define _LADSPA_PLUGIN_FACTORY_H_
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18
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19 #include "RealTimePluginFactory.h"
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20 #include "api/ladspa.h"
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21
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22 #include <vector>
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23 #include <map>
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24 #include <set>
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25 #include <QString>
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26
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27 class LADSPAPluginInstance;
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28
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29 class LADSPAPluginFactory : public RealTimePluginFactory
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30 {
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31 public:
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32 virtual ~LADSPAPluginFactory();
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33
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34 virtual void discoverPlugins();
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35
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36 virtual const std::vector<QString> &getPluginIdentifiers() const;
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37
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38 virtual void enumeratePlugins(std::vector<QString> &list);
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39
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40 virtual RealTimePluginInstance *instantiatePlugin(QString identifier,
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41 int clientId,
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42 int position,
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43 unsigned int sampleRate,
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44 unsigned int blockSize,
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45 unsigned int channels);
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46
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47 float getPortMinimum(const LADSPA_Descriptor *, int port);
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48 float getPortMaximum(const LADSPA_Descriptor *, int port);
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49 float getPortDefault(const LADSPA_Descriptor *, int port);
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50 int getPortDisplayHint(const LADSPA_Descriptor *, int port);
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51
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52 protected:
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53 LADSPAPluginFactory();
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54 friend class RealTimePluginFactory;
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55
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56 virtual std::vector<QString> getPluginPath();
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57
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58 #ifdef HAVE_LIBLRDF
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59 virtual std::vector<QString> getLRDFPath(QString &baseUri);
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60 #endif
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61
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62 virtual void discoverPlugins(QString soName);
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63 virtual void generateTaxonomy(QString uri, QString base);
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64 virtual void generateFallbackCategories();
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65
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66 virtual void releasePlugin(RealTimePluginInstance *, QString);
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67
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68 virtual const LADSPA_Descriptor *getLADSPADescriptor(QString identifier);
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69
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70 void loadLibrary(QString soName);
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71 void unloadLibrary(QString soName);
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72 void unloadUnusedLibraries();
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73
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74 std::vector<QString> m_identifiers;
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75
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76 std::map<unsigned long, QString> m_taxonomy;
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77 std::map<QString, QString> m_fallbackCategories;
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78 std::map<unsigned long, std::map<int, float> > m_portDefaults;
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79
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80 std::set<RealTimePluginInstance *> m_instances;
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81
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82 typedef std::map<QString, void *> LibraryHandleMap;
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83 LibraryHandleMap m_libraryHandles;
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84 };
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85
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86 #endif
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87
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