MyGUI: MyGUI_Timer.cpp Source File

MyGUI 3.4.3

MyGUI_Timer.cpp
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1/*
2 * This source file is part of MyGUI. For the latest info, see http://mygui.info/
3 * Distributed under the MIT License
4 * (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
5 */
6
7#include "MyGUI_Precompiled.h"
8#include "MyGUI_Timer.h"
9
10#if MYGUI_COMPILER == MYGUI_COMPILER_MSVC
11 #include <windows.h>
12 #pragma comment(lib, "winmm.lib")
13#else
14 #include <sys/time.h>
15#endif
16
17namespace MyGUI
18{
19
20 void Timer::reset()
21 {
22 mTimeStart = getCurrentMilliseconds();
23 }
24
25 unsigned long Timer::getMilliseconds() const
26 {
27 return getCurrentMilliseconds() - mTimeStart;
28 }
29
30 unsigned long Timer::getCurrentMilliseconds() const
31 {
32#if MYGUI_COMPILER == MYGUI_COMPILER_MSVC
33 /*
34 We do this because clock() is not affected by timeBeginPeriod on Win32.
35 QueryPerformanceCounter is a little overkill for the amount of precision that
36 I consider acceptable. If someone submits a patch that replaces this code
37 with QueryPerformanceCounter, I wouldn't complain. Until then, timeGetTime
38 gets the results I'm after. -EMS
39
40 See: http://www.geisswerks.com/ryan/FAQS/timing.html
41 And: http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q274323&
42 */
43 return timeGetTime();
44#else
45 struct timeval now;
46 gettimeofday(&now, nullptr);
47 return (now.tv_sec) * 1000 + (now.tv_usec) / 1000;
48 //return ( unsigned long )(( double )( clock() ) / (( double )CLOCKS_PER_SEC / 1000.0 ) );
49#endif
50 }
51
52} // namespace MyGUI
MyGUI_Precompiled.h
MyGUI_Timer.h
MyGUI::Timer::reset
void reset()
Definition MyGUI_Timer.cpp:20
MyGUI::Timer::getMilliseconds
unsigned long getMilliseconds() const
Definition MyGUI_Timer.cpp:25
MyGUI
Definition MyGUI_ActionController.h:15