view plugin/RealTimePluginFactory.h @ 1833:21c792334c2e sensible-delimited-data-strings

Rewrite all the DelimitedDataString stuff so as to return vectors of individual cell strings rather than having the classes add the delimiters themselves. Rename accordingly to names based on StringExport. Take advantage of this in the CSV writer code so as to properly quote cells that contain delimiter characters.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

/*
   This is a modified version of a source file from the 
   Rosegarden MIDI and audio sequencer and notation editor.
   This file copyright 2000-2006 Chris Cannam.
*/

#ifndef SV_REALTIME_PLUGIN_FACTORY_H
#define SV_REALTIME_PLUGIN_FACTORY_H

#include <QString>
#include <vector>
#include <memory>

#include "base/Debug.h"
#include "base/BaseTypes.h"

class RealTimePluginInstance;

class RealTimePluginDescriptor
{
public:
    std::string name;
    std::string label;
    std::string maker;
    std::string copyright;
    std::string category;
    bool isSynth;
    unsigned int parameterCount;
    unsigned int audioInputPortCount;
    unsigned int audioOutputPortCount;
    unsigned int controlOutputPortCount;
    std::vector<std::string> controlOutputPortNames;
};

class RealTimePluginFactory
{
public:
    virtual ~RealTimePluginFactory();

    static RealTimePluginFactory *instance(QString pluginType);
    static RealTimePluginFactory *instanceFor(QString identifier);
    static std::vector<QString> getAllPluginIdentifiers();
    static void enumerateAllPlugins(std::vector<QString> &);

    static void setSampleRate(sv_samplerate_t 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;

    /**
     * Get some basic information about a plugin (rapidly).
     */
    virtual RealTimePluginDescriptor getPluginDescriptor(QString identifier) const = 0;

    /**
     * Instantiate a plugin.
     */
    virtual std::shared_ptr<RealTimePluginInstance> instantiatePlugin(QString identifier,
                                                      int clientId,
                                                      int position,
                                                      sv_samplerate_t sampleRate,
                                                      int blockSize,
                                                      int channels) = 0;

    /**
     * Get category metadata about a plugin (without instantiating it).
     */
    virtual QString getPluginCategory(QString identifier) = 0;

    /**
     * Get the full file path (including both directory and filename)
     * of the library file that provides a given plugin
     * identifier. Note getPluginIdentifiers() must have been called
     * before this has access to the necessary information.
     */
    virtual QString getPluginLibraryPath(QString identifier) = 0;
    
protected:
    RealTimePluginFactory() { }

    static sv_samplerate_t m_sampleRate;
};

#endif