Timed.cpp

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/* ============================================================
 *
 * This file is a part of CCA project
 *
 * Copyright (C) 2011 by Arne Nordmann <anordman at cor-lab dot uni-bielefeld dot de>
 *
 * This file may be licensed under the terms of the
 * GNU Lesser General Public License Version 3 (the ``LGPL''),
 * or (at your option) any later version.
 *
 * Software distributed under the License is distributed
 * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
 * express or implied. See the LGPL for the specific language
 * governing rights and limitations.
 *
 * You should have received a copy of the LGPL along with this
 * program. If not, go to http://www.gnu.org/licenses/lgpl.html
 * or write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The development of this software was supported by:
 *   CoR-Lab, Research Institute for Cognition and Robotics
 *     Bielefeld University
 *
 * ============================================================ */

#include "Timed.h"

#include <vector>
#include <numeric>
#include <sstream>
#include <iostream>

#include <boost/format.hpp>

using namespace std;
using namespace boost;

namespace cca {

StrategyPtr Timed::samplerate(unsigned int rate) {
    return StrategyPtr(new Timed(rate));
}

Timed::Timed(unsigned int rate) :
        ProcessingStrategy("Timed", true, false), srate(rate), ticks(0),
                logger(rsc::logging::Logger::getLogger("cca.processing.timed")) {
}

bool Timed::processOnTick() const {
    RSCTRACE(logger, "Timed::processOnTick()");
    ++ticks;
    RSCTRACE(logger,
            str( format( "Timed::processOnTick() Ticks: %d, Samplerate: %d") % ticks % srate));

    if (srate == 1) {
        RSCDEBUG(logger, "Timed::processOnTick() processing on every tick => process");
        return true;
    }
    if (ticks >= srate) {
        RSCDEBUG(logger, "Timed::processOnTick() => process");
        ticks = 0;
        return true;
    }

    return false;
}

bool Timed::processOnInputs(ProcessingStrategy::NamedInputPorts inputs) const {
    RSCTRACE(logger, "Timed::processOnInputs()");
    RSCWARN(logger,
            str( format( "Timed::processOnInputs() Ignoring input vector"
            " of size %d") % inputs.size()));
    return false;
}

unsigned int Timed::getSampleRate() const {
    return this->srate;
}

string Timed::print() const {
    ostringstream outstream(ostringstream::out);
    outstream.precision(3); // Precision when printing double values
    outstream << "<" << this->name;
    if (this->srate == 1) {
        outstream << ", on every beat";
    } else if (this->srate == 2) {
        outstream << ", every 2nd beat";
    } else if (this->srate == 3) {
        outstream << ", every 3rd beat";
    } else {
        outstream << ", every " << this->srate << "th beat";
    }
    outstream << ">";
    return outstream.str();
}

}