Mercurial > hg > svcore
view plugin/RealTimePluginFactory.h @ 15:47500c27ac26
* Add getXForFrame / getFrameForX in preference to using the zoom level everywhere
author | Chris Cannam |
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date | Mon, 30 Jan 2006 13:19:42 +0000 |
parents | d86891498eef |
children | 2fb933f88604 |
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/* -*- c-basic-offset: 4 -*- vi:set ts=8 sts=4 sw=4: */ /* A waveform viewer and audio annotation editor. Chris Cannam, Queen Mary University of London, 2005-2006 This is experimental software. Not for distribution. */ /* This is a modified version of a source file from the Rosegarden MIDI and audio sequencer and notation editor. This file copyright 2000-2005 Chris Cannam. */ #ifndef _REALTIME_PLUGIN_FACTORY_H_ #define _REALTIME_PLUGIN_FACTORY_H_ #include <QString> #include <vector> class RealTimePluginInstance; class RealTimePluginFactory { public: static RealTimePluginFactory *instance(QString pluginType); static RealTimePluginFactory *instanceFor(QString identifier); static std::vector<QString> getAllPluginIdentifiers(); static void enumerateAllPlugins(std::vector<QString> &); static void setSampleRate(int sampleRate) { m_sampleRate = sampleRate; } /** * Look up the plugin path and find the plugins in it. Called * automatically after construction of a factory. */ virtual void discoverPlugins() = 0; /** * Return a reference to a list of all plugin identifiers that can * be created by this factory. */ virtual const std::vector<QString> &getPluginIdentifiers() const = 0; /** * Append to the given list descriptions of all the available * plugins and their ports. This is in a standard format, see * the LADSPA implementation for details. */ virtual void enumeratePlugins(std::vector<QString> &list) = 0; /** * Instantiate a plugin. */ virtual RealTimePluginInstance *instantiatePlugin(QString identifier, int clientId, int position, unsigned int sampleRate, unsigned int blockSize, unsigned int channels) = 0; protected: RealTimePluginFactory() { } // for call by RealTimePluginInstance dtor virtual void releasePlugin(RealTimePluginInstance *, QString identifier) = 0; friend class RealTimePluginInstance; static int m_sampleRate; }; #endif