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Diffstat (limited to 'engines/lab/timing.cpp')
| -rw-r--r-- | engines/lab/timing.cpp | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/engines/lab/timing.cpp b/engines/lab/timing.cpp deleted file mode 100644 index 1cbe6d328a..0000000000 --- a/engines/lab/timing.cpp +++ /dev/null @@ -1,127 +0,0 @@ -/* ScummVM - Graphic Adventure Engine - * - * ScummVM is the legal property of its developers, whose names - * are too numerous to list here. Please refer to the COPYRIGHT - * file distributed with this source distribution. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - */ - -/* - * This code is based on Labyrinth of Time code with assistance of - * - * Copyright (c) 1993 Terra Nova Development - * Copyright (c) 2004 The Wyrmkeep Entertainment Co. - * - */ - -#include "lab/lab.h" - -namespace Lab { - -/** - * Waits for for Secs seconds and Micros microseconds to pass. - */ -void LabEngine::microDelay(uint32 secs, uint32 micros) { - uint32 waitSecs, waitMicros; - addCurTime(secs, micros, &waitSecs, &waitMicros); - - while (1) { - getTime(&secs, µs); - - if ((secs > waitSecs) || ((secs == waitSecs) && (micros >= waitMicros))) - return; - - g_system->delayMillis(10); - } -} - -/** - * Gets the current system time. - */ -void LabEngine::getTime(uint32 *secs, uint32 *micros) { - uint32 t = g_system->getMillis(); - - *secs = t / 1000; - *micros = t % 1000; -} - -/** - * Adds seconds and microseconds to current time to get a new time. - */ -void LabEngine::addCurTime(uint32 sec, uint32 micros, uint32 *timeSec, uint32 *timeMicros) { - getTime(timeSec, timeMicros); - - (*timeSec) += sec; - (*timeMicros) += micros; - - if (*timeMicros >= ONESECOND) { - (*timeSec)++; - (*timeMicros) -= ONESECOND; - } -} - -/** - * Finds the difference between time1 and time2. If time1 is later than - * time2, returns 0. - */ -void LabEngine::anyTimeDiff(uint32 sec1, uint32 micros1, uint32 sec2, uint32 micros2, uint32 *diffSecs, uint32 *diffMicros) { - *diffSecs = 0; - *diffMicros = 0; - - if (sec1 > sec2) - return; - else if ((sec1 == sec2) && (micros1 >= micros2)) - return; - - if (micros1 > micros2) { - *diffSecs = sec2 - sec1 - 1; - *diffMicros = (ONESECOND - micros1) + micros2; - } else { - *diffSecs = sec2 - sec1; - *diffMicros = micros2 - micros1; - } -} - -/** - * Finds the difference between the current time, and a future time. Returns - * 0 if the future time is actually before the current time. - */ -void LabEngine::timeDiff(uint32 sec, uint32 micros, uint32 *diffSec, uint32 *diffMicros) { - uint32 curSec, curMicros; - getTime(&curSec, &curMicros); - anyTimeDiff(curSec, curMicros, sec, micros, diffSec, diffMicros); -} - -/** - * Waits for a specified time to occur. - */ -void LabEngine::waitForTime(uint32 sec, uint32 micros) { - uint32 curSec, curMicros; - getTime(&curSec, &curMicros); - - if (curSec > sec) - return; - else if ((curSec == sec) && (curMicros >= micros)) - return; - - if (curMicros > micros) - microDelay(sec - curSec - 1, (ONESECOND - curMicros) + micros - 1); - else - microDelay(sec - curSec, micros - curMicros - 1); -} - -} // End of namespace Lab |