mirror of https://github.com/AxioDL/metaforce.git
140 lines
3.7 KiB
C++
140 lines
3.7 KiB
C++
#ifndef _WIN32
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#include <unistd.h>
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#include <sys/time.h>
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#if __APPLE__
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#include <mach/mach_time.h>
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#endif
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#else
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#endif
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#include <cstdio>
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#include <cstdarg>
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#include <ctime>
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#include "Runtime/CBasics.hpp"
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#if __APPLE__
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static u64 MachToDolphinNum;
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static u64 MachToDolphinDenom;
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#elif _WIN32
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static LARGE_INTEGER PerfFrequency;
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#endif
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namespace metaforce {
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void CBasics::Initialize() {
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#if __APPLE__
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mach_timebase_info_data_t timebase;
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mach_timebase_info(&timebase);
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MachToDolphinNum = GetGCTicksPerSec() * timebase.numer;
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MachToDolphinDenom = 1000000000ull * timebase.denom;
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#elif _WIN32
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QueryPerformanceFrequency(&PerfFrequency);
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#endif
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}
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u64 CBasics::GetGCTicks() {
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#if __APPLE__
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return mach_absolute_time() * MachToDolphinNum / MachToDolphinDenom;
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#elif __linux__ || __FreeBSD__
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struct timespec tp;
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clock_gettime(CLOCK_MONOTONIC, &tp);
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return u64((tp.tv_sec * 1000000000ull) + tp.tv_nsec) * GetGCTicksPerSec() / 1000000000ull;
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#elif _WIN32
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LARGE_INTEGER perf;
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QueryPerformanceCounter(&perf);
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perf.QuadPart *= GetGCTicksPerSec();
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perf.QuadPart /= PerfFrequency.QuadPart;
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return perf.QuadPart;
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#else
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return 0;
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#endif
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}
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const u64 CBasics::SECONDS_TO_2000 = 946684800LL;
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const u64 CBasics::TICKS_PER_SECOND = 60750000LL;
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static struct tm* localtime_r(const time_t& time, struct tm& timeSt, long& gmtOff) {
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#ifndef _WIN32
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auto ret = ::localtime_r(&time, &timeSt);
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if (!ret)
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return nullptr;
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gmtOff = ret->tm_gmtoff;
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return ret;
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#else
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struct tm _gmSt;
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auto reta = localtime_s(&timeSt, &time);
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auto retb = gmtime_s(&_gmSt, &time);
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if (reta || retb)
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return nullptr;
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gmtOff = mktime(&timeSt) - mktime(&_gmSt);
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return &timeSt;
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#endif
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}
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OSTime CBasics::ToWiiTime(std::chrono::system_clock::time_point time) {
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auto sec = std::chrono::time_point_cast<std::chrono::seconds>(time);
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auto us = std::chrono::duration_cast<std::chrono::microseconds>((time - sec)).count();
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time_t sysTime = std::chrono::system_clock::to_time_t(sec);
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struct tm _timeSt;
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long gmtOff;
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struct tm* timeSt = localtime_r(sysTime, _timeSt, gmtOff);
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if (!timeSt)
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return 0;
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/* Returning local */
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return OSTime(TICKS_PER_SECOND * ((sysTime + gmtOff) - SECONDS_TO_2000) + us * TICKS_PER_SECOND / 1000000);
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}
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std::chrono::system_clock::time_point CBasics::FromWiiTime(OSTime wiiTime) {
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auto div = std::lldiv(SECONDS_TO_2000 + wiiTime, TICKS_PER_SECOND);
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time_t time = time_t(div.quot);
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time_t sysTime = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
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struct tm _timeSt;
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long gmtOff;
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struct tm* timeSt = localtime_r(sysTime, _timeSt, gmtOff);
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if (!timeSt)
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return std::chrono::system_clock::from_time_t(0);
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/* Returning GMT */
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return std::chrono::system_clock::from_time_t(time - gmtOff) +
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std::chrono::microseconds(div.rem * 1000000 / TICKS_PER_SECOND);
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}
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OSCalendarTime CBasics::ToCalendarTime(std::chrono::system_clock::time_point time) {
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OSCalendarTime ret;
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auto sec = std::chrono::time_point_cast<std::chrono::seconds>(time);
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auto us = std::chrono::duration_cast<std::chrono::microseconds>((time - sec)).count();
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time_t sysTime = std::chrono::system_clock::to_time_t(sec);
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struct tm _timeSt;
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long gmtOff;
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struct tm* timeSt = localtime_r(sysTime, _timeSt, gmtOff);
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if (!timeSt)
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return {};
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ret.x0_sec = timeSt->tm_sec;
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ret.x4_min = timeSt->tm_min;
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ret.x8_hour = timeSt->tm_hour;
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ret.xc_mday = timeSt->tm_mday;
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ret.x10_mon = timeSt->tm_mon;
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ret.x14_year = timeSt->tm_year + 1900;
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ret.x18_wday = timeSt->tm_wday;
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ret.x1c_yday = timeSt->tm_yday;
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auto div = std::ldiv(us, 1000);
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ret.x20_msec = div.quot;
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ret.x24_usec = div.rem;
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return ret;
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}
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} // namespace metaforce
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