SFML - Simple and Fast Multimedia Library Main Page Namespaces Classes Files File List Platform.cpp00001 00002 // 00003 // SFML - Simple and Fast Multimedia Library 00004 // Copyright (C) 2007-2009 Laurent Gomila ([e-mail]) 00005 // 00006 // This software is provided 'as-is', without any express or implied warranty. 00007 // In no event will the authors be held liable for any damages arising from the use of this software. 00008 // 00009 // Permission is granted to anyone to use this software for any purpose, 00010 // including commercial applications, and to alter it and redistribute it freely, 00011 // subject to the following restrictions: 00012 // 00013 // 1. The origin of this software must not be misrepresented; 00014 // you must not claim that you wrote the original software. 00015 // If you use this software in a product, an acknowledgment 00016 // in the product documentation would be appreciated but is not required. 00017 // 00018 // 2. Altered source versions must be plainly marked as such, 00019 // and must not be misrepresented as being the original software. 00020 // 00021 // 3. This notice may not be removed or altered from any source distribution. 00022 // 00024 00026 // Headers 00028 #include <SFML/System/Win32/Platform.hpp> 00029 #include <windows.h> 00030 00031 00032 namespace sf 00033 { 00034 namespace priv 00035 { 00039 double Platform::GetSystemTime() 00040 { 00041 static LARGE_INTEGER Frequency; 00042 static BOOL UseHighPerformanceTimer = QueryPerformanceFrequency(&Frequency); 00043 00044 if (UseHighPerformanceTimer) 00045 { 00046 // High performance counter available : use it 00047 LARGE_INTEGER CurrentTime; 00048 QueryPerformanceCounter(&CurrentTime); 00049 00050 return static_cast<double>(CurrentTime.QuadPart) / Frequency.QuadPart; 00051 } 00052 else 00053 { 00054 // High performance counter not available : use GetTickCount (less accurate) 00055 return GetTickCount() * 0.001; 00056 } 00057 } 00058 00059 00063 void Platform::Sleep(float Time) 00064 { 00065 ::Sleep(static_cast<DWORD>(Time * 1000)); 00066 } 00067 00068 } // namespace priv 00069 00070 } // namespace sf  ::  Copyright © 2007-2008 Laurent Gomila, all rights reserved  ::  Documentation generated by doxygen 1.5.2  ::