Mercurial > projects > hoofbaby
diff deps/Platinum/ThirdParty/Neptune/Source/Core/NptTime.cpp @ 0:3425707ddbf6
Initial import (hopefully this mercurial stuff works...)
author | fraserofthenight |
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date | Mon, 06 Jul 2009 08:06:28 -0700 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/deps/Platinum/ThirdParty/Neptune/Source/Core/NptTime.cpp Mon Jul 06 08:06:28 2009 -0700 @@ -0,0 +1,189 @@ +/***************************************************************** +| +| Neptune - Time +| +| Copyright (c) 2002-2008, Axiomatic Systems, LLC. +| All rights reserved. +| +| Redistribution and use in source and binary forms, with or without +| modification, are permitted provided that the following conditions are met: +| * Redistributions of source code must retain the above copyright +| notice, this list of conditions and the following disclaimer. +| * Redistributions in binary form must reproduce the above copyright +| notice, this list of conditions and the following disclaimer in the +| documentation and/or other materials provided with the distribution. +| * Neither the name of Axiomatic Systems nor the +| names of its contributors may be used to endorse or promote products +| derived from this software without specific prior written permission. +| +| THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY +| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +| DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY +| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +| + ****************************************************************/ + +/*---------------------------------------------------------------------- +| includes ++---------------------------------------------------------------------*/ +#include "NptTime.h" + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::NPT_TimeStamp ++---------------------------------------------------------------------*/ +NPT_TimeStamp::NPT_TimeStamp(float seconds) +{ + m_Seconds = (long)seconds; + m_NanoSeconds = (long)(1E9f*(seconds - (float)m_Seconds)); +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator float ++---------------------------------------------------------------------*/ +NPT_TimeStamp::operator float() const +{ + return ((float)m_Seconds) + ((float)m_NanoSeconds)/1E9f; +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator+= ++---------------------------------------------------------------------*/ +NPT_TimeStamp& +NPT_TimeStamp::operator+=(const NPT_TimeStamp& t) +{ + m_Seconds += t.m_Seconds; + m_NanoSeconds += t.m_NanoSeconds; + if (m_NanoSeconds <= -1000000000) { + m_Seconds--; + m_NanoSeconds += 1000000000; + } else if (m_NanoSeconds >= 1000000000) { + m_Seconds++; + m_NanoSeconds -= 1000000000; + } + if (m_NanoSeconds < 0 && m_Seconds > 0) { + m_Seconds--; + m_NanoSeconds += 1000000000; + } + return *this; +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator-= ++---------------------------------------------------------------------*/ +NPT_TimeStamp& +NPT_TimeStamp::operator-=(const NPT_TimeStamp& t) +{ + m_Seconds -= t.m_Seconds; + m_NanoSeconds -= t.m_NanoSeconds; + if (m_NanoSeconds <= -1000000000) { + m_Seconds--; + m_NanoSeconds += 1000000000; + } else if (m_NanoSeconds >= 1000000000) { + m_Seconds++; + m_NanoSeconds -= 1000000000; + } + if (m_NanoSeconds < 0 && m_Seconds > 0) { + m_Seconds--; + m_NanoSeconds += 1000000000; + } + return *this; +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator== ++---------------------------------------------------------------------*/ +bool +NPT_TimeStamp::operator==(const NPT_TimeStamp& t) const +{ + return + m_Seconds == t.m_Seconds && + m_NanoSeconds == t.m_NanoSeconds; +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator!= ++---------------------------------------------------------------------*/ +bool +NPT_TimeStamp::operator!=(const NPT_TimeStamp& t) const +{ + return + m_Seconds != t.m_Seconds || + m_NanoSeconds != t.m_NanoSeconds; +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator> ++---------------------------------------------------------------------*/ +bool +NPT_TimeStamp::operator>(const NPT_TimeStamp& t) const +{ + return + m_Seconds > t.m_Seconds || + (m_Seconds == t.m_Seconds && m_NanoSeconds > t.m_NanoSeconds); +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator< ++---------------------------------------------------------------------*/ +bool +NPT_TimeStamp::operator<(const NPT_TimeStamp& t) const +{ + return + m_Seconds < t.m_Seconds || + (m_Seconds == t.m_Seconds && m_NanoSeconds < t.m_NanoSeconds); +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator>= ++---------------------------------------------------------------------*/ +bool +NPT_TimeStamp::operator>=(const NPT_TimeStamp& t) const +{ + return *this > t || *this == t; +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator<= ++---------------------------------------------------------------------*/ +bool +NPT_TimeStamp::operator<=(const NPT_TimeStamp& t) const +{ + return *this < t || *this == t; +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator+ ++---------------------------------------------------------------------*/ +NPT_TimeStamp +operator+(const NPT_TimeStamp& timestamp, long seconds) +{ + // shortcut + if (seconds == 0) return NPT_TimeStamp(timestamp); + + NPT_TimeStamp result = timestamp; + result.m_Seconds += seconds; + + return result; +} + +/*---------------------------------------------------------------------- +| NPT_TimeStamp::operator- ++---------------------------------------------------------------------*/ +NPT_TimeStamp +operator-(const NPT_TimeStamp& timestamp, long seconds) +{ + // shortcut + if (seconds == 0) return NPT_TimeStamp(timestamp); + + NPT_TimeStamp result = timestamp; + result.m_Seconds -= seconds; + + return result; +} +