116 lines
2.7 KiB
C++
116 lines
2.7 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common/system.h"
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#include "tetraedge/te/te_real_timer.h"
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namespace Tetraedge {
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TeRealTimer::TeRealTimer() : _startTime(0), _paused(false), _maxTimeSeen(0), _startTime2(0) {
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pause();
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_pausedTime = 0;
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}
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static uint64 getUsecs() {
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return (uint64)g_system->getMillis() * 1000;
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}
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uint64 TeRealTimer::getTimeFromStart() {
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uint64 timeNow;
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if (_paused) {
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timeNow = _pausedTime;
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} else {
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timeNow = getUsecs();
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if (timeNow < _maxTimeSeen)
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timeNow = _maxTimeSeen;
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_maxTimeSeen = timeNow;
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}
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return timeNow - _startTime;
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}
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void TeRealTimer::pause() {
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if (!_paused) {
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uint64 timeNow = getUsecs();
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if (timeNow < _maxTimeSeen)
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timeNow = _maxTimeSeen;
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_maxTimeSeen = timeNow;
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_pausedTime = timeNow;
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_paused = true;
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}
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}
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void TeRealTimer::start() {
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if (_paused) {
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uint64 timeNow = getUsecs();
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if (timeNow < _maxTimeSeen)
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timeNow = _maxTimeSeen;
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timeNow += (_startTime - _pausedTime);
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_startTime = timeNow;
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_startTime2 = timeNow;
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_maxTimeSeen = timeNow;
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_paused = false;
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}
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}
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void TeRealTimer::stop() {
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pause();
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_startTime = 0;
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_startTime2 = 0;
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_pausedTime = 0;
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}
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uint64 TeRealTimer::systemTime() {
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return getUsecs();
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}
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uint64 TeRealTimer::monotonicSystemTime() {
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uint64 timeNow = getUsecs();
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if (_maxTimeSeen < timeNow)
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_maxTimeSeen = timeNow;
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return _maxTimeSeen;
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}
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uint64 TeRealTimer::time_() {
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return systemTime();
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}
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/* Time elapsed from the start */
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uint64 TeRealTimer::timeElapsed() {
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uint64 timeNow = getUsecs();
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if (_maxTimeSeen < timeNow)
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_maxTimeSeen = timeNow;
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_startTime2 = _maxTimeSeen;
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uint64 elapsed = _maxTimeSeen - _startTime;
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return elapsed;
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}
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uint64 TeRealTimer::timeFromLastTimeElapsed() {
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uint64 timeNow = getUsecs();
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if (_maxTimeSeen < timeNow)
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_maxTimeSeen = timeNow;
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uint64 elapsed = _maxTimeSeen - _startTime2;
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return elapsed;
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}
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} // end namespace Tetraedge
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