annotate plugin/RealTimePluginFactory.cpp @ 1008:d9e0e59a1581

When using an aggregate model to pass data to a transform, zero-pad the shorter input to the duration of the longer rather than truncating the longer. (This is better behaviour for e.g. MATCH, and in any case the code was previously truncating incorrectly and ending up with garbage data at the end.)

// -*- c-basic-offset: 4 indent-tabs-mode: nil -*-

/*
    Rosegarden-4
    A sequencer and musical notation editor.

    This program is Copyright 2000-2006
        Guillaume Laurent   <[e-mail]>,
        Chris Cannam        <[e-mail]>,
        Richard Bown        <[e-mail]>

    The moral right of the authors to claim authorship of this work
    has been asserted.

    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.
*/

#include "RealTimePluginFactory.h"
#include "PluginIdentifier.h"

#include "LADSPAPluginFactory.h"
#include "DSSIPluginFactory.h"

#include "system/System.h"
#include "base/Profiler.h"

#include <iostream>

int RealTimePluginFactory::m_sampleRate = 48000;

static LADSPAPluginFactory *_ladspaInstance = 0;
static LADSPAPluginFactory *_dssiInstance = 0;

RealTimePluginFactory::~RealTimePluginFactory()
{
}

RealTimePluginFactory *
RealTimePluginFactory::instance(QString pluginType)
{
    if (pluginType == "ladspa") {
	if (!_ladspaInstance) {
//	    SVDEBUG << "RealTimePluginFactory::instance(" << pluginType//		      << "): creating new LADSPAPluginFactory" << endl;
	    _ladspaInstance = new LADSPAPluginFactory();
	    _ladspaInstance->discoverPlugins();
	}
	return _ladspaInstance;
    } else if (pluginType == "dssi") {
	if (!_dssiInstance) {
//	    SVDEBUG << "RealTimePluginFactory::instance(" << pluginType//		      << "): creating new DSSIPluginFactory" << endl;
	    _dssiInstance = new DSSIPluginFactory();
	    _dssiInstance->discoverPlugins();
	}
	return _dssiInstance;
    }
	
    else return 0;
}

RealTimePluginFactory *
RealTimePluginFactory::instanceFor(QString identifier)
{
    QString type, soName, label;
    PluginIdentifier::parseIdentifier(identifier, type, soName, label);
    return instance(type);
}

std::vector<QString>
RealTimePluginFactory::getAllPluginIdentifiers()
{
    Profiler profiler("RealTimePluginFactory::getAllPluginIdentifiers");

    RealTimePluginFactory *factory;
    std::vector<QString> rv;
    
    // Query DSSI plugins before LADSPA ones.
    // This is to provide for the interesting possibility of plugins
    // providing either DSSI or LADSPA versions of themselves,
    // returning both versions if the LADSPA identifiers are queried
    // first but only the DSSI version if the DSSI identifiers are
    // queried first.

    factory = instance("dssi");
    if (factory) {
	const std::vector<QString> &tmp = factory->getPluginIdentifiers();
	for (size_t i = 0; i < tmp.size(); ++i) {
	    rv.push_back(tmp[i]);
	}
    }

    factory = instance("ladspa");
    if (factory) {
	const std::vector<QString> &tmp = factory->getPluginIdentifiers();
	for (size_t i = 0; i < tmp.size(); ++i) {
	    rv.push_back(tmp[i]);
	}
    }

    // Plugins can change the locale, revert it to default.
    RestoreStartupLocale();

    return rv;
}

void
RealTimePluginFactory::enumerateAllPlugins(std::vector<QString> &list)
{
    Profiler profiler("RealTimePluginFactory::enumerateAllPlugins");

    RealTimePluginFactory *factory;

    // Query DSSI plugins before LADSPA ones.
    // This is to provide for the interesting possibility of plugins
    // providing either DSSI or LADSPA versions of themselves,
    // returning both versions if the LADSPA identifiers are queried
    // first but only the DSSI version if the DSSI identifiers are
    // queried first.

    factory = instance("dssi");
    if (factory) factory->enumeratePlugins(list);

    factory = instance("ladspa");
    if (factory) factory->enumeratePlugins(list);
    
    // Plugins can change the locale, revert it to default.
    RestoreStartupLocale();
}