diff options
Diffstat (limited to 'src/libjin/3rdparty/Box2D/Common/b2Timer.cpp')
-rw-r--r-- | src/libjin/3rdparty/Box2D/Common/b2Timer.cpp | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/src/libjin/3rdparty/Box2D/Common/b2Timer.cpp b/src/libjin/3rdparty/Box2D/Common/b2Timer.cpp deleted file mode 100644 index 38f3dea..0000000 --- a/src/libjin/3rdparty/Box2D/Common/b2Timer.cpp +++ /dev/null @@ -1,121 +0,0 @@ -/* -* Copyright (c) 2011 Erin Catto http://box2d.org -* -* This software is provided 'as-is', without any express or implied -* warranty. In no event will the authors be held liable for any damages -* arising from the use of this software. -* Permission is granted to anyone to use this software for any purpose, -* including commercial applications, and to alter it and redistribute it -* freely, subject to the following restrictions: -* 1. The origin of this software must not be misrepresented; you must not -* claim that you wrote the original software. If you use this software -* in a product, an acknowledgment in the product documentation would be -* appreciated but is not required. -* 2. Altered source versions must be plainly marked as such, and must not be -* misrepresented as being the original software. -* 3. This notice may not be removed or altered from any source distribution. -*/ - -#include "Box2D/Common/b2Timer.h" - -#if defined(_WIN32) - -float64 b2Timer::s_invFrequency = 0.0f; - -#ifndef WIN32_LEAN_AND_MEAN -#define WIN32_LEAN_AND_MEAN -#endif - -#include <windows.h> - -b2Timer::b2Timer() -{ - LARGE_INTEGER largeInteger; - - if (s_invFrequency == 0.0f) - { - QueryPerformanceFrequency(&largeInteger); - s_invFrequency = float64(largeInteger.QuadPart); - if (s_invFrequency > 0.0f) - { - s_invFrequency = 1000.0f / s_invFrequency; - } - } - - QueryPerformanceCounter(&largeInteger); - m_start = float64(largeInteger.QuadPart); -} - -void b2Timer::Reset() -{ - LARGE_INTEGER largeInteger; - QueryPerformanceCounter(&largeInteger); - m_start = float64(largeInteger.QuadPart); -} - -float32 b2Timer::GetMilliseconds() const -{ - LARGE_INTEGER largeInteger; - QueryPerformanceCounter(&largeInteger); - float64 count = float64(largeInteger.QuadPart); - float32 ms = float32(s_invFrequency * (count - m_start)); - return ms; -} - -#elif defined(__linux__) || defined (__APPLE__) - -#include <sys/time.h> - -b2Timer::b2Timer() -{ - Reset(); -} - -void b2Timer::Reset() -{ - timeval t; - gettimeofday(&t, 0); - m_start_sec = t.tv_sec; - m_start_usec = t.tv_usec; -} - -float32 b2Timer::GetMilliseconds() const -{ - timeval t; - gettimeofday(&t, 0); - time_t start_sec = m_start_sec; - suseconds_t start_usec = m_start_usec; - - // http://www.gnu.org/software/libc/manual/html_node/Elapsed-Time.html - if (t.tv_usec < start_usec) - { - int nsec = (start_usec - t.tv_usec) / 1000000 + 1; - start_usec -= 1000000 * nsec; - start_sec += nsec; - } - - if (t.tv_usec - start_usec > 1000000) - { - int nsec = (t.tv_usec - start_usec) / 1000000; - start_usec += 1000000 * nsec; - start_sec -= nsec; - } - return 1000.0f * (t.tv_sec - start_sec) + 0.001f * (t.tv_usec - start_usec); -} - -#else - -b2Timer::b2Timer() -{ -} - -void b2Timer::Reset() -{ -} - -float32 b2Timer::GetMilliseconds() const -{ - return 0.0f; -} - -#endif |