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/* -*- 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 _REALTIME_PLUGIN_FACTORY_H_
#define _REALTIME_PLUGIN_FACTORY_H_
#include <QString>
#include <vector>
#include "base/Debug.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(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;
/**
* Get some basic information about a plugin (rapidly).
*/
virtual const RealTimePluginDescriptor *getPluginDescriptor(QString identifier) const = 0;
/**
* Instantiate a plugin.
*/
virtual RealTimePluginInstance *instantiatePlugin(QString identifier,
int clientId,
int position,
unsigned int sampleRate,
unsigned int blockSize,
unsigned int channels) = 0;
/**
* Get category metadata about a plugin (without instantiating it).
*/
virtual QString getPluginCategory(QString identifier) = 0;
protected:
RealTimePluginFactory() { }
// for call by RealTimePluginInstance dtor
virtual void releasePlugin(RealTimePluginInstance *, QString identifier) = 0;
friend class RealTimePluginInstance;
static int m_sampleRate;
};
#endif
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