Justin Marshall
18 lines
579 B
C++
18 lines
579 B
C++
#include "timer.h"
|
|
|
|
#include <limits>
|
|
|
|
std::int64_t idTimer::baseClockTicks = -1;
|
|
|
|
void idTimer::InitBaseClockTicks() const {
|
|
std::int64_t best = (std::numeric_limits<std::int64_t>::max)();
|
|
// The recovered function calibrates the minimum empty Start/Stop cost.
|
|
for (int iteration = 0; iteration < 1000; ++iteration) {
|
|
const std::int64_t begin = ClockNow();
|
|
const std::int64_t elapsed = ClockNow() - begin;
|
|
if (elapsed < best) best = elapsed;
|
|
}
|
|
baseClockTicks = best == (std::numeric_limits<std::int64_t>::max)()
|
|
? 0 : best;
|
|
}
|