#include "device.h"

#include <math.h>

//Class Timer member function implementation

int Timer::createTimer()

{

_start = 0;

_clocks = 0;

#ifdef _WIN32

QueryPerformanceFrequency((LARGE_INTEGER* )&_freq);

#else

_freq = (long long)1.0E3;

#endif

return SDK_SUCCESS;

}

//Start the Timer

int Timer::startTimer()

{

#ifdef _WIN32

QueryPerformanceCounter((LARGE_INTEGER*)&_start);

#else

struct timeval s;

gettimeofday(&s,0);

_start = (long long)s.tv_sec * (long long)1.0E3 + (long long)s.tv_usec / (long long)1.0E3;

#endif

return SDK_SUCCESS;

}

//Reset the Timer

int Timer::resetTimer()

{

_start = 0;

_clocks = 0;

return SDK_SUCCESS;

}

//Stop the Timer

int Timer::stopTimer()

{

long long n = 0;

#ifdef _WIN32

QueryPerformanceCounter((LARGE_INTEGER*)&n);

#else

struct timeval s;

gettimeofday(&s,0);

n = (long long)s.tv_sec * (long long)1.0E3 + (long long)s.tv_usec / (long long)1.0E3;

#endif

n -= _start;

_start = 0;

_clocks += n;

return SDK_SUCCESS;

}

//Get the elapsed time between the Timer start and end

double Timer::readTimer()

{

totaltime = double(_clocks);

totaltime = double(totaltime / _freq);

return totaltime;

}

//class Device member function implement

//Construction

Device::Device()

{

globalThreads[0] = WIDTH / 4/GROUP;

globalThreads[1] = HEIGHT;

localThreads[0] = 64;

localThreads[1] = 4;

}

//Deconstruction

Device::~Device()

{

//deconstuctor

}