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annotate plugin/LADSPAPluginInstance.h @ 52:d397ea0a79f5

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* Update licensing rubric for GPL
author Chris Cannam
date Mon, 20 Mar 2006 15:10:07 +0000
parents c2913298cf94
children 7439f1696314
rev   line source
Chris@49 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@52 4 Sonic Visualiser
Chris@52 5 An audio file viewer and annotation editor.
Chris@52 6 Centre for Digital Music, Queen Mary, University of London.
Chris@0 7
Chris@52 8 This program is free software; you can redistribute it and/or
Chris@52 9 modify it under the terms of the GNU General Public License as
Chris@52 10 published by the Free Software Foundation; either version 2 of the
Chris@52 11 License, or (at your option) any later version. See the file
Chris@52 12 COPYING included with this distribution for more information.
Chris@0 13 */
Chris@0 14
Chris@0 15 /*
Chris@0 16 This is a modified version of a source file from the
Chris@0 17 Rosegarden MIDI and audio sequencer and notation editor.
Chris@17 18 This file copyright 2000-2006 Chris Cannam and Richard Bown.
Chris@0 19 */
Chris@0 20
Chris@0 21 #ifndef _LADSPAPLUGININSTANCE_H_
Chris@0 22 #define _LADSPAPLUGININSTANCE_H_
Chris@0 23
Chris@0 24 #include <vector>
Chris@0 25 #include <set>
Chris@0 26 #include <QString>
Chris@0 27
Chris@0 28 #include "api/ladspa.h"
Chris@0 29 #include "RealTimePluginInstance.h"
Chris@0 30
Chris@0 31 // LADSPA plugin instance. LADSPA is a variable block size API, but
Chris@0 32 // for one reason and another it's more convenient to use a fixed
Chris@0 33 // block size in this wrapper.
Chris@0 34 //
Chris@0 35 class LADSPAPluginInstance : public RealTimePluginInstance
Chris@0 36 {
Chris@0 37 public:
Chris@0 38 virtual ~LADSPAPluginInstance();
Chris@0 39
Chris@0 40 virtual bool isOK() const { return m_instanceHandles.size() != 0; }
Chris@0 41
Chris@0 42 int getClientId() const { return m_client; }
Chris@0 43 virtual QString getIdentifier() const { return m_identifier; }
Chris@0 44 int getPosition() const { return m_position; }
Chris@0 45
Chris@51 46 virtual std::string getName() const;
Chris@51 47 virtual std::string getDescription() const;
Chris@51 48 virtual std::string getMaker() const;
Chris@51 49 virtual int getPluginVersion() const;
Chris@51 50 virtual std::string getCopyright() const;
Chris@51 51
Chris@0 52 virtual void run(const RealTime &rt);
Chris@0 53
Chris@0 54 virtual unsigned int getParameterCount() const;
Chris@0 55 virtual void setParameterValue(unsigned int parameter, float value);
Chris@0 56 virtual float getParameterValue(unsigned int parameter) const;
Chris@0 57 virtual float getParameterDefault(unsigned int parameter) const;
Chris@51 58
Chris@51 59 virtual ParameterList getParameterDescriptors() const;
Chris@51 60 virtual float getParameter(std::string) const;
Chris@51 61 virtual void setParameter(std::string, float);
Chris@0 62
Chris@0 63 virtual size_t getBufferSize() const { return m_blockSize; }
Chris@0 64 virtual size_t getAudioInputCount() const { return m_instanceCount * m_audioPortsIn.size(); }
Chris@0 65 virtual size_t getAudioOutputCount() const { return m_instanceCount * m_audioPortsOut.size(); }
Chris@0 66 virtual sample_t **getAudioInputBuffers() { return m_inputBuffers; }
Chris@0 67 virtual sample_t **getAudioOutputBuffers() { return m_outputBuffers; }
Chris@0 68
Chris@0 69 virtual bool isBypassed() const { return m_bypassed; }
Chris@0 70 virtual void setBypassed(bool bypassed) { m_bypassed = bypassed; }
Chris@0 71
Chris@0 72 virtual size_t getLatency();
Chris@0 73
Chris@0 74 virtual void silence();
Chris@0 75 virtual void setIdealChannelCount(size_t channels); // may re-instantiate
Chris@0 76
Chris@0 77 protected:
Chris@0 78 // To be constructed only by LADSPAPluginFactory
Chris@0 79 friend class LADSPAPluginFactory;
Chris@0 80
Chris@0 81 // Constructor that creates the buffers internally
Chris@0 82 //
Chris@0 83 LADSPAPluginInstance(RealTimePluginFactory *factory,
Chris@0 84 int client,
Chris@0 85 QString identifier,
Chris@0 86 int position,
Chris@0 87 unsigned long sampleRate,
Chris@0 88 size_t blockSize,
Chris@0 89 int idealChannelCount,
Chris@0 90 const LADSPA_Descriptor* descriptor);
Chris@0 91
Chris@0 92 void init(int idealChannelCount = 0);
Chris@0 93 void instantiate(unsigned long sampleRate);
Chris@0 94 void cleanup();
Chris@0 95 void activate();
Chris@0 96 void deactivate();
Chris@0 97
Chris@0 98 // Connection of data (and behind the scenes control) ports
Chris@0 99 //
Chris@0 100 void connectPorts();
Chris@0 101
Chris@0 102 int m_client;
Chris@0 103 int m_position;
Chris@0 104 std::vector<LADSPA_Handle> m_instanceHandles;
Chris@0 105 size_t m_instanceCount;
Chris@0 106 const LADSPA_Descriptor *m_descriptor;
Chris@0 107
Chris@0 108 std::vector<std::pair<unsigned long, LADSPA_Data*> > m_controlPortsIn;
Chris@0 109 std::vector<std::pair<unsigned long, LADSPA_Data*> > m_controlPortsOut;
Chris@0 110
Chris@0 111 std::vector<int> m_audioPortsIn;
Chris@0 112 std::vector<int> m_audioPortsOut;
Chris@0 113
Chris@0 114 size_t m_blockSize;
Chris@0 115 sample_t **m_inputBuffers;
Chris@0 116 sample_t **m_outputBuffers;
Chris@0 117 bool m_ownBuffers;
Chris@0 118 size_t m_sampleRate;
Chris@0 119 float *m_latencyPort;
Chris@0 120 bool m_run;
Chris@0 121
Chris@0 122 bool m_bypassed;
Chris@0 123 };
Chris@0 124
Chris@0 125 #endif // _LADSPAPLUGININSTANCE_H_
Chris@0 126