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#ifndef SCOPEDTIMER_HDR
#define SCOPEDTIMER_HDR
#include <string>
#include <sstream>
#include <iomanip>
#include <map>
#include <limits>
#define USE_SDL_TIMER
#ifdef USE_SDL_TIMER
#include <SDL_timer.h>
#else
#include <time.h>
#endif
#define MAX_STR_LENGTH 30
#ifdef DEBUG
#define PROFILE(x) CScopedTimer t(std::string((#x)));
#else
#define PROFILE(x)
#endif
class CScopedTimer {
public:
CScopedTimer(const std::string& s): task(s) {
if (times.find(task) == times.end()) {
times[task] = 0;
counters[task] = 0;
maxtimes[task] = 0;
mintimes[task] = std::numeric_limits<unsigned>::max();
}
#ifdef USE_SDL_TIMER
t1 = SDL_GetTicks();
#else
t1 = clock();
#endif
}
~CScopedTimer() {
#ifdef USE_SDL_TIMER
t2 = SDL_GetTicks();
#else
t2 = clock();
#endif
t3 = t2 - t1;
times[task] += t3;
if (t3 > 0) // we are not interested in 0 timings
mintimes[task] = std::min<unsigned>(mintimes[task], t3);
maxtimes[task] = std::max<unsigned>(maxtimes[task], t3);
sum += t3;
counters[task]++;
}
static std::string profile() {
std::stringstream ss;
ss << "[CScopedTimer] milliseconds\n";
for (int i = 0; i < MAX_STR_LENGTH; i++)
ss << " ";
ss << "PCT\tAVG\tMIN\tMAX\tTOT\n";
std::map<std::string, unsigned>::iterator i;
for (i = times.begin(); i != times.end(); i++) {
int x = i->second / float(sum) * 10000;
float pct = x / 100.0f;
x = i->second / float(counters[i->first]) * 100;
float avg = x / 100.0f;
ss << " " << i->first;
for (unsigned j = i->first.size()+2; j < MAX_STR_LENGTH; j++)
ss << " ";
#ifndef USE_SDL_TIMER
if(mintimes[i->first] == std::numeric_limits<unsigned>::max())
mintimes[i->first] = 0;
mintimes[i->first] = unsigned(((float)mintimes[i->first] / CLOCKS_PER_SEC) * 1000.0f);
maxtimes[i->first] = unsigned(((float)maxtimes[i->first] / CLOCKS_PER_SEC) * 1000.0f);
i->second = unsigned(((float)i->second / CLOCKS_PER_SEC) * 1000.0f);
#endif
ss << pct << "%\t" << avg << "\t" << mintimes[i->first] << "\t" << maxtimes[i->first] << "\t" << i->second << "\t" << "\n";
}
ss << "\n";
return ss.str();
}
private:
const std::string task;
unsigned t1;
unsigned t2;
unsigned t3;
static unsigned sum; // total time for all timers
static std::map<std::string, unsigned> times;
static std::map<std::string, unsigned> counters;
static std::map<std::string, unsigned> mintimes,maxtimes;
};
#endif
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