int clock_gettime(struct timespec *tp)
{
u32 gctime;
#if defined(HW_RVL)
u32 wii_bias = 0;
#endif
if(!tp) return -1;
if(!__SYS_GetRTC(&gctime)) return -1;
#if defined(HW_DOL)
syssram* sram = __SYS_LockSram();
gctime += sram->counter_bias;
__SYS_UnlockSram(0);
#else
if(CONF_GetCounterBias(&wii_bias)>=0) gctime += wii_bias;
#endif
gctime += 946684800;
tp->tv_sec = gctime;
tp->tv_nsec = ticks_to_nanosecs(gettick());
return 0;
}
u32 diff_nsec(long long start,long long end)
{
u64 diff;
diff = diff_ticks(start,end);
return ticks_to_nanosecs(diff);
}
// high-resolution timers for profiling
uint64_t getu64ticks(void)
{
# if defined _WIN32
return win_getu64ticks();
# elif defined __APPLE__
return mach_absolute_time();
# elif _POSIX_TIMERS>0 && defined _POSIX_MONOTONIC_CLOCK
// This is SDL HG's SDL_GetPerformanceCounter() when clock_gettime() is
// available.
uint64_t ticks;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
ticks = now.tv_sec;
ticks *= 1000000000;
ticks += now.tv_nsec;
return ticks;
# elif defined GEKKO
return ticks_to_nanosecs(gettime());
# else
// Blar. This pragma is unsupported on earlier GCC versions.
// At least we'll get a warning and a reference to this line...
# pragma message "Using low-resolution (1ms) timer for getu64ticks. Profiling will work badly."
return SDL_GetTicks();
# endif
}
