Timer.cpp

/*
 * This file is part of Bubba-3D.
 *
 * Bubba-3D is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Bubba-3D is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Bubba-3D. If not, see http://www.gnu.org/licenses/.
 */

#include "timer.h"

namespace utils {

void Timer::start() {
#ifdef __linux__
      gettimeofday(&tStart, nullptr);
#endif
#ifdef _WIN32
    tStart = high_resolution_clock::now();
#endif
}

void Timer::stop() {
#ifdef __linux__
    gettimeofday(&tEnd, nullptr);
#endif

#ifdef _WIN32
    tEnd = high_resolution_clock::now();
#endif
}

double Timer::getElapsedTime() {
    double elapsedTime;

#ifdef __linux__
      elapsedTime  = (tEnd.tv_sec  - tStart.tv_sec)  * 1000.0;
      elapsedTime += (tEnd.tv_usec - tStart.tv_usec) / 1000.0;
#endif

#ifdef _WIN32
    duration<double> time_span = duration_cast<duration<double>>(tEnd - tStart);
    elapsedTime = time_span.count() * 1000;
#endif

    return elapsedTime;
}
   
}