mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-16 06:39:17 +00:00
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
// Residual - Virtual machine to run LucasArts' 3D adventure games
|
|
// Copyright (C) 2003 The ScummVM-Residual Team (www.scummvm.org)
|
|
//
|
|
// This library is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Lesser General Public
|
|
// License as published by the Free Software Foundation; either
|
|
// version 2.1 of the License, or (at your option) any later version.
|
|
//
|
|
// This library 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
|
|
// Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public
|
|
// License along with this library; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
#ifndef COMMON_TIMER_H
|
|
#define COMMON_TIMER_H
|
|
|
|
#include "stdafx.h"
|
|
#include "bits.h"
|
|
|
|
#define MAX_TIMERS 3
|
|
|
|
typedef void (*TimerProc)(void *refCon);
|
|
|
|
class Timer {
|
|
|
|
private:
|
|
MutexRef _mutex;
|
|
void *_timerHandler;
|
|
int32 _thisTime;
|
|
int32 _lastTime;
|
|
|
|
struct TimerSlots {
|
|
TimerProc procedure;
|
|
int32 interval;
|
|
int32 counter;
|
|
void *refCon;
|
|
} _timerSlots[MAX_TIMERS];
|
|
|
|
public:
|
|
Timer();
|
|
~Timer();
|
|
|
|
/**
|
|
* Install a new timer callback. It will from now be called every interval microseconds.
|
|
* The timer may be invoked from a separate thread. Hence any timer code should be
|
|
* written following the same safety guidelines as any other threaded code.
|
|
*
|
|
* @note Although the interval is specified in microseconds, the actual timer resolution
|
|
* may be lower. In particular, with the SDL backend the timer resolution is 10ms.
|
|
* @param proc the callback
|
|
* @param interval the interval in which the timer shall be invoked (in microseconds)
|
|
* @param refCon an arbitrary void pointer; will be passed to the timer callback
|
|
* @return true if the timer was installed successfully, false otherwise
|
|
*/
|
|
bool installTimerProc(TimerProc proc, int32 interval, void *refCon);
|
|
|
|
/**
|
|
* Remove the given timer callback. It will not be invoked anymore.
|
|
*/
|
|
void removeTimerProc(TimerProc proc);
|
|
|
|
protected:
|
|
static int timer_handler(int t);
|
|
int handler(int t);
|
|
};
|
|
|
|
extern Timer *g_timer;
|
|
|
|
#endif
|
|
|