Mercurial > hg > svcore
view plugin/RealTimePluginFactory.h @ 6:44bbf5793d84
* Rework handling of layer properties in file I/O -- we now get the individual
layers to load and save them rather than doing it via generic property lists
in the base class, so as to ensure we read and write meaningful values rather
than generic int values requiring conversion.
author | Chris Cannam |
---|---|
date | Thu, 19 Jan 2006 12:54:38 +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