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https://github.com/libretro/scummvm.git
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127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "backends/platform/ps2/systemps2.h"
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#include "backends/platform/ps2/ps2debug.h"
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#include "eecodyvdfs.h"
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#include <osd_config.h>
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#include <time.h>
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#define FROM_BCD(a) ((a >> 4) * 10 + (a & 0xF))
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static int g_timeSecs;
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static int g_day, g_month, g_year;
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static int g_lastTimeCheck;
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extern volatile uint32 msecCount;
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void buildNewDate(int dayDiff) {
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static int daysPerMonth[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
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if (((g_year % 4) == 0) && (((g_year % 100) != 0) || ((g_year % 1000) == 0)))
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daysPerMonth[1] = 29;
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else
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daysPerMonth[1] = 28;
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if (dayDiff == -1) {
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g_day--;
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if (g_day == 0) {
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g_month--;
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if (g_month == 0) {
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g_year--;
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g_month = 12;
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}
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g_day = daysPerMonth[g_month - 1];
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}
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} else if (dayDiff == 1) {
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g_day++;
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if (g_day > daysPerMonth[g_month - 1]) {
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g_day = 1;
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g_month++;
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if (g_month > 12) {
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g_month = 1;
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g_year++;
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}
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}
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}
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}
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#define SECONDS_PER_DAY (24 * 60 * 60)
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void OSystem_PS2::readRtcTime(void) {
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struct CdClock cdClock;
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readRTC(&cdClock);
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g_lastTimeCheck = getMillis();
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if (cdClock.stat) {
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msgPrintf(5000, "Unable to read RTC time, EC: %d\n", cdClock.stat);
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g_day = g_month = 1;
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g_year = 0;
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g_timeSecs = 0;
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} else {
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int gmtOfs = configGetTimezone();
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if (configIsDaylightSavingEnabled())
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gmtOfs += 60;
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int timeSecs = (FROM_BCD(cdClock.hour) * 60 + FROM_BCD(cdClock.minute)) * 60 + FROM_BCD(cdClock.second);
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timeSecs -= 9 * 60 * 60; // minus 9 hours, JST -> GMT conversion
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timeSecs += gmtOfs * 60; // GMT -> timezone the user selected
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g_day = FROM_BCD(cdClock.day);
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g_month = FROM_BCD(cdClock.month);
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g_year = FROM_BCD(cdClock.year);
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if (timeSecs < 0) {
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buildNewDate(-1);
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timeSecs += SECONDS_PER_DAY;
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} else if (timeSecs >= SECONDS_PER_DAY) {
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buildNewDate(+1);
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timeSecs -= SECONDS_PER_DAY;
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}
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g_timeSecs = (uint32)timeSecs;
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}
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sioprintf("Time: %d:%02d:%02d - %d.%d.%4d\n", g_timeSecs / (60 * 60), (g_timeSecs / 60) % 60, g_timeSecs % 60,
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g_day, g_month, g_year + 2000);
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}
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void OSystem_PS2::getTimeAndDate(struct tm &t) const {
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uint32 currentSecs = g_timeSecs + (msecCount - g_lastTimeCheck) / 1000;
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if (currentSecs >= SECONDS_PER_DAY) {
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buildNewDate(+1);
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g_lastTimeCheck += SECONDS_PER_DAY * 1000;
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currentSecs = g_timeSecs + (msecCount - g_lastTimeCheck) / 1000;
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}
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t.tm_hour = currentSecs / (60 * 60);
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t.tm_min = (currentSecs / 60) % 60;
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t.tm_sec = currentSecs % 60;
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t.tm_year = g_year + 100;
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t.tm_mday = g_day;
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t.tm_mon = g_month - 1;
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// tm_wday, tm_yday and tm_isdst are zero for now
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t.tm_wday = t.tm_yday = t.tm_isdst = 0;
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}
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