138 lines
5.1 KiB
C
138 lines
5.1 KiB
C
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/*
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** Command & Conquer Renegade(tm)
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** Copyright 2025 Electronic Arts Inc.
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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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*** Confidential - Westwood Studios ***
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***********************************************************************************************
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* *
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* Project Name : Commando *
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* *
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* $Archive:: /Commando/Code/wwlib/systimer.h $*
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* *
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* $Author:: Steve_t $*
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* *
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* $Modtime:: 12/09/01 6:41p $*
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* *
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* $Revision:: 2 $*
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#pragma once
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#ifndef _SYSTIMER_H
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#include "always.h"
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#include <windows.h>
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#include "mmsys.h"
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#define TIMEGETTIME SystemTime.Get
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/*
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** Class that just wraps around timeGetTime()
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**
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**
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*/
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class SysTimeClass
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{
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public:
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/*
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** Get. Use everywhere you would use timeGetTime
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*/
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__forceinline unsigned long Get(void);
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__forceinline unsigned long operator () (void) {return(Get());}
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__forceinline operator unsigned long(void) {return(Get());}
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/*
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** Use periodically (like every few days!) to make sure the timer doesn't wrap.
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*/
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void Reset(void);
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/*
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** See if the timer is about to wrap.
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*/
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bool Is_Getting_Late(void);
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private:
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/*
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** Time we were first called.
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*/
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unsigned long StartTime;
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/*
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** Time to add after timer wraps.
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*/
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unsigned long WrapAdd;
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};
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extern SysTimeClass SystemTime;
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/***********************************************************************************************
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* SysTimeClass::Get -- Wrapper around system timeGetTime() api call *
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* *
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* *
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* *
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* INPUT: Nothing *
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* *
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* OUTPUT: Current system time in ms *
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* *
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* WARNINGS: None *
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* *
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* HISTORY: *
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* 10/25/2001 1:38PM ST : Created *
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*=============================================================================================*/
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__forceinline unsigned long SysTimeClass::Get(void)
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{
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/*
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** This has to be static here since we don't know if we will get called in a global constructor of another object before our
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** constructor gets called. In fact, we don't even have a constructor because it's pointless.
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*/
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static bool is_init = false;
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if (!is_init) {
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Reset();
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is_init = true;
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}
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unsigned long time = timeGetTime();
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if (time > StartTime) {
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return(time - StartTime);
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}
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/*
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** Timer wrapped around. Eeek.
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*/
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return(time + WrapAdd);
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}
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#ifdef timeGetTime
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#undef timeGetTime
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#define timeGetTime SystemTime.Get
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#endif //timeGetTime
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#endif //_SYSTIMER_H
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