lbajardsilogic@79: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@79: 
lbajardsilogic@79: /*	Sound Access	
lbajardsilogic@79: 		EASAIER client application.	
lbajardsilogic@79: 		Silogic 2007. Laure Bajard. 
lbajardsilogic@79: 	
lbajardsilogic@79: 	This program is free software; you can redistribute it and/or    
lbajardsilogic@79: 	modify it under the terms of the GNU General Public License as    
lbajardsilogic@79: 	published by the Free Software Foundation; either version 2 of the    
lbajardsilogic@79: 	License, or (at your option) any later version.  See the file    
lbajardsilogic@79: 	COPYING included with this distribution for more information.
lbajardsilogic@79: */
lbajardsilogic@79:  
lbajardsilogic@79: #include "FilterStack.h"
lbajardsilogic@79: 
lbajardsilogic@223: #include "MultiRealTimeFilter.h"
lbajardsilogic@106: 
lbajardsilogic@179: FilterStack::FilterStack() : QObject(),
lbajardsilogic@179: 	m_count(0),
lbajardsilogic@179: 	m_sourceChannelCount(0)
lbajardsilogic@79: {}
lbajardsilogic@79: 
lbajardsilogic@79: FilterStack::~FilterStack()
lbajardsilogic@79: {
lbajardsilogic@174: 	removeAllFilters();
lbajardsilogic@79: }
lbajardsilogic@79: 
lbajardsilogic@181: Filter* FilterStack::findFilter(QString &name)
lbajardsilogic@181: {
lbajardsilogic@181: 	std::map<int, Filter *>::iterator iter;
lbajardsilogic@181: 
lbajardsilogic@191: 	for ( iter = m_filters.begin(); iter != m_filters.end(); iter++) 
lbajardsilogic@191: 	{
lbajardsilogic@191: 		Filter * filter = iter->second;
lbajardsilogic@191: 		if (name.contains(filter->objectName())) 
lbajardsilogic@191: 		{
lbajardsilogic@191: 			return filter;
lbajardsilogic@191: 		}
lbajardsilogic@181:     }
lbajardsilogic@181: 	return 0;
lbajardsilogic@181: }
lbajardsilogic@181: 
lbajardsilogic@79: void FilterStack::addFilter(Filter * filter)
lbajardsilogic@79: {
lbajardsilogic@79: 	m_filters[m_count] = filter;
lbajardsilogic@84: 	filter->setSourceChannelCount(m_sourceChannelCount);
lbajardsilogic@79: 	m_count++;	
lbajardsilogic@223: 
lbajardsilogic@223: 	std::vector<PropertyContainer*> filterCollection = filter->getFilterCollection();
lbajardsilogic@223: 	std::vector<PropertyContainer*>::iterator iter;
lbajardsilogic@223: 	for (iter = filterCollection.begin(); iter != filterCollection.end(); iter++)
lbajardsilogic@223: 	{
lbajardsilogic@223: 		PropertyContainer* filterElt = *iter;
lbajardsilogic@223: 		emit newFilterAdded(filterElt);
lbajardsilogic@223: 	}
lbajardsilogic@224: 
lbajardsilogic@224: 	connect(filter, SIGNAL(propertyContainerRemoved(QString)),
lbajardsilogic@224:             this, SIGNAL(filterRemoved(QString)));
lbajardsilogic@79: }
lbajardsilogic@79: 
lbajardsilogic@191: void FilterStack::putInput(float **input, size_t samples)
lbajardsilogic@191: {
lbajardsilogic@191: 	//only process the first filter, should pass in all filters !!!
lbajardsilogic@191: 	std::map<int, Filter *>::iterator iter = m_filters.begin();
lbajardsilogic@191: 
lbajardsilogic@191: 	if (iter != m_filters.end())
lbajardsilogic@191: 	{
lbajardsilogic@191: 		Filter * filter = iter->second;
lbajardsilogic@191: 		if(filter->isFilterEnabled()){
lbajardsilogic@191: 			filter->putInput(input, samples);
lbajardsilogic@191: 		}
lbajardsilogic@191: 	}
lbajardsilogic@191: }
lbajardsilogic@191: 
lbajardsilogic@191: void FilterStack::getOutput(float **output, size_t samples)
lbajardsilogic@191: {
lbajardsilogic@191: 	//only process the first filter, should pass in all filters !!!
lbajardsilogic@191: 	std::map<int, Filter *>::iterator iter = m_filters.begin();
lbajardsilogic@191: 
lbajardsilogic@191: 	if (iter != m_filters.end())
lbajardsilogic@191: 	{
lbajardsilogic@191: 		Filter * filter = iter->second;
lbajardsilogic@191: 		if(filter->isFilterEnabled()){
lbajardsilogic@191: 			filter->getOutput(output, samples);
lbajardsilogic@191: 		}
lbajardsilogic@191: 	}
lbajardsilogic@191: }
lbajardsilogic@191: 
lbajardsilogic@191: QString FilterStack::getUniqueFilterName(QString candidate)
lbajardsilogic@191: {
lbajardsilogic@191:     for (int count = 1; ; ++count) {
lbajardsilogic@191: 
lbajardsilogic@191:         QString adjusted =
lbajardsilogic@191:             (count > 1 ? QString("%1 <%2>").arg(candidate).arg(count) :
lbajardsilogic@191:              candidate);
lbajardsilogic@191:         
lbajardsilogic@191:         bool duplicate = false;
lbajardsilogic@191: 
lbajardsilogic@191:         for (std::map<int, Filter *>::iterator i = m_filters.begin(); i != m_filters.end(); ++i) {
lbajardsilogic@191: 			Filter * filter = i->second;
lbajardsilogic@191: 			if (filter->objectName() == adjusted) {
lbajardsilogic@191:                 duplicate = true;
lbajardsilogic@191:                 break;
lbajardsilogic@191:             }
lbajardsilogic@191:         }
lbajardsilogic@191: 
lbajardsilogic@191:         if (!duplicate) return adjusted;
lbajardsilogic@191:     }
lbajardsilogic@191: }
lbajardsilogic@191: 
lbajardsilogic@191: void FilterStack::removeFilter(QString &name)
lbajardsilogic@191: {
lbajardsilogic@191: 	std::map<int, Filter *>::iterator iter;
lbajardsilogic@191: 
lbajardsilogic@191: 	for (iter = m_filters.begin(); iter != m_filters.end(); iter++)
lbajardsilogic@191: 	{
lbajardsilogic@191: 		Filter * filter = iter->second;
lbajardsilogic@191: 		if (filter->objectName() == name)
lbajardsilogic@191: 		{
lbajardsilogic@191: 			delete filter;
lbajardsilogic@191: 			m_filters.erase(iter);
lbajardsilogic@191: 			emit filterRemoved(name);
lbajardsilogic@191: 			filter = 0;
lbajardsilogic@191: 			return;
lbajardsilogic@191: 		}
lbajardsilogic@191: 	}
lbajardsilogic@191: }
lbajardsilogic@191: 
lbajardsilogic@191: void FilterStack::removeAllFilters()
lbajardsilogic@191: {
lbajardsilogic@191: 	while (!m_filters.empty())
lbajardsilogic@191: 	{
lbajardsilogic@191: 		Filter * filter = m_filters.begin()->second;
lbajardsilogic@191: 		QString filterName(filter->objectName());
lbajardsilogic@191: 		removeFilter(filterName);
lbajardsilogic@191: 	}
lbajardsilogic@191: 	m_filters.clear();
lbajardsilogic@191: 	m_count = 0;
lbajardsilogic@191: }
lbajardsilogic@191: 
lbajardsilogic@191: size_t FilterStack::getRequiredInputSamples(size_t outputSamplesNeeded)
lbajardsilogic@191: {
lbajardsilogic@191: 	size_t max = 0;
lbajardsilogic@191: 
lbajardsilogic@191: 	std::map<int, Filter *>::iterator iter;
lbajardsilogic@191: 
lbajardsilogic@191: 	for (iter = m_filters.begin(); iter != m_filters.end(); iter++)
lbajardsilogic@191: 	{
lbajardsilogic@191: 		Filter * filter = iter->second;
lbajardsilogic@191: 		size_t required = filter->getRequiredInputSamples(outputSamplesNeeded);
lbajardsilogic@191: 		if ( (required > max) && (filter->isFilterEnabled()) )
lbajardsilogic@191: 		{
lbajardsilogic@191: 			max = required;
lbajardsilogic@191: 		}
lbajardsilogic@191: 	}
lbajardsilogic@191: 	return max;
lbajardsilogic@191: }
lbajardsilogic@191: 
lbajardsilogic@191: size_t FilterStack::getRequiredSkipSamples()
lbajardsilogic@191: {
lbajardsilogic@191: 	size_t skip = 1024;
lbajardsilogic@191: 
lbajardsilogic@191: 	std::map<int, Filter *>::iterator iter;
lbajardsilogic@191: 
lbajardsilogic@191: 	for (iter = m_filters.begin(); iter != m_filters.end(); iter++)
lbajardsilogic@191: 	{
lbajardsilogic@191: 		// find the time filter
lbajardsilogic@191: 		Filter * filter = iter->second;
lbajardsilogic@223: 		if (filter->objectName() == "DIT Filters")
lbajardsilogic@191: 		{
lbajardsilogic@223: 			MultiRealTimeFilter * timefilter = (MultiRealTimeFilter *) filter;
lbajardsilogic@191: 			if (filter->isFilterEnabled()) {
lbajardsilogic@191: 				skip = timefilter->getRequiredSkipSamples();
lbajardsilogic@191: 			}
lbajardsilogic@191: 		}
lbajardsilogic@191: 	}
lbajardsilogic@191: 	return skip;
lbajardsilogic@191: }
lbajardsilogic@191: 
lbajardsilogic@191: void FilterStack::setSourceChannelCount(size_t channel)
lbajardsilogic@191: {
lbajardsilogic@191: 	m_sourceChannelCount = channel;
lbajardsilogic@191: 
lbajardsilogic@191: 	std::map<int, Filter *>::iterator iter;
lbajardsilogic@191: 
lbajardsilogic@191: 	for (iter = m_filters.begin(); iter != m_filters.end(); iter++)
lbajardsilogic@191: 	{
lbajardsilogic@191: 		Filter * filter = iter->second;
lbajardsilogic@191: 		filter->setSourceChannelCount(m_sourceChannelCount);
lbajardsilogic@191: 	}
lbajardsilogic@191: 
lbajardsilogic@191: }
lbajardsilogic@191: 
lbajardsilogic@191: bool FilterStack::allowOtherFilter(QString &labelType)
lbajardsilogic@191: {
lbajardsilogic@191: 	Filter* filter = findFilter(labelType);
lbajardsilogic@191: 	if ( (filter) && (!filter->allowMultiple()) )
lbajardsilogic@191: 	{
lbajardsilogic@191: 		return false;
lbajardsilogic@191: 	}
lbajardsilogic@191: 
lbajardsilogic@191: 	return true;
lbajardsilogic@203: }
lbajardsilogic@203: 
lbajardsilogic@203: QString FilterStack::toEasaierXmlString(QString indent, QString extraAttributes) const
lbajardsilogic@203: {
lbajardsilogic@203:     QString s;
lbajardsilogic@203: 
lbajardsilogic@203:     s += indent + QString("<filters>\n");
lbajardsilogic@203: 
lbajardsilogic@203: 	std::map<int, Filter *>::const_iterator iter;
lbajardsilogic@203: 	for (iter = m_filters.begin(); iter != m_filters.end(); iter++)
lbajardsilogic@203: 	{
lbajardsilogic@203: 		Filter * filter = iter->second;
lbajardsilogic@203: 		s += filter->toEasaierXmlString(indent + indent, extraAttributes);
lbajardsilogic@203: 	}
lbajardsilogic@203: 
lbajardsilogic@203:     s += indent + "</filters>\n";
lbajardsilogic@203: 
lbajardsilogic@203:     return s;
lbajardsilogic@79: }