timer.hpp

shrike is a utility application that acts as a testbed for shaders written in Sh

// Sh: A GPU metaprogramming language.
//
// Copyright 2003-2005 Serious Hack Inc.
// 
// This library 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 2.1 of the License, or (at your option) any later version.
//
// This library 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 this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
// MA  02110-1301, USA
//////////////////////////////////////////////////////////////////////////////
// -*- C++ -*-
#ifndef TIMER_H
#define TIMER_H

#ifdef WIN32
#include <windows.h>
#else
#include <sys/time.h>
#endif /* WIN32 */

class ShTimer{
public:
  ShTimer(void);
  ~ShTimer(void);
  
  float value(void);
  
  static ShTimer now(void);
  static ShTimer zero(void);
  
  friend ShTimer operator-(const ShTimer& a, const ShTimer& b);
  friend ShTimer operator+(const ShTimer& a, const ShTimer& b);
  
private:
#ifdef WIN32
  LARGE_INTEGER t;
#else
  struct timeval t;
#endif /* WIN32 */
};

#endif /* TIMER_H */