81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
// Copyright 2015 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <chrono>
|
|
#include <cstring>
|
|
#include <ctime>
|
|
|
|
#include "core/core_timing.h"
|
|
#include "core/hle/shared_page.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
namespace SharedPage {
|
|
|
|
SharedPageDef shared_page;
|
|
|
|
static int update_time_event;
|
|
|
|
/// Gets system time in 3DS format. The epoch is Jan 1900, and the unit is millisecond.
|
|
static u64 GetSystemTime() {
|
|
auto now = std::chrono::system_clock::now();
|
|
|
|
// 3DS system does't allow user to set a time before Jan 1 2000,
|
|
// so we use it as an auxiliary epoch to calculate the console time.
|
|
std::tm epoch_tm;
|
|
epoch_tm.tm_sec = 0;
|
|
epoch_tm.tm_min = 0;
|
|
epoch_tm.tm_hour = 0;
|
|
epoch_tm.tm_mday = 1;
|
|
epoch_tm.tm_mon = 0;
|
|
epoch_tm.tm_year = 100;
|
|
epoch_tm.tm_isdst = 0;
|
|
auto epoch = std::chrono::system_clock::from_time_t(std::mktime(&epoch_tm));
|
|
|
|
// 3DS console time uses Jan 1 1900 as internal epoch,
|
|
// so we use the milliseconds between 1900 and 2000 as base console time
|
|
u64 console_time = 3155673600000ULL;
|
|
|
|
// Only when system time is after 2000, we set it as 3DS system time
|
|
if (now > epoch) {
|
|
console_time += std::chrono::duration_cast<std::chrono::milliseconds>(now - epoch).count();
|
|
}
|
|
|
|
// If the system time is in daylight saving, we give an additional hour to console time
|
|
std::time_t now_time_t = std::chrono::system_clock::to_time_t(now);
|
|
std::tm* now_tm = std::localtime(&now_time_t);
|
|
if (now_tm && now_tm->tm_isdst > 0)
|
|
console_time += 60 * 60 * 1000;
|
|
|
|
return console_time;
|
|
}
|
|
|
|
static void UpdateTimeCallback(u64 userdata, int cycles_late) {
|
|
DateTime& date_time = shared_page.date_time_counter % 2 ?
|
|
shared_page.date_time_0 : shared_page.date_time_1;
|
|
|
|
date_time.date_time = GetSystemTime();
|
|
date_time.update_tick = CoreTiming::GetTicks();
|
|
date_time.tick_to_second_coefficient = g_clock_rate_arm11;
|
|
date_time.tick_offset = 0;
|
|
|
|
++shared_page.date_time_counter;
|
|
|
|
// system time is updated hourly
|
|
CoreTiming::ScheduleEvent(msToCycles(60 * 60 * 1000) - cycles_late, update_time_event);
|
|
}
|
|
|
|
void Init() {
|
|
std::memset(&shared_page, 0, sizeof(shared_page));
|
|
|
|
shared_page.running_hw = 0x1; // product
|
|
|
|
// Some games wait until this value becomes 0x1, before asking running_hw
|
|
shared_page.unknown_value = 0x1;
|
|
|
|
update_time_event = CoreTiming::RegisterEvent("SharedPage::UpdateTimeCallback", UpdateTimeCallback);
|
|
CoreTiming::ScheduleEvent(0, update_time_event);
|
|
}
|
|
|
|
} // namespace
|