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76 lines
2.5 KiB
76 lines
2.5 KiB
//======================================================================== |
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// GLFW 3.4 Win32 - www.glfw.org |
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//------------------------------------------------------------------------ |
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// Copyright (c) 2002-2006 Marcus Geelnard |
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// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org> |
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// |
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// This software is provided 'as-is', without any express or implied |
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// warranty. In no event will the authors be held liable for any damages |
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// arising from the use of this software. |
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// |
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// Permission is granted to anyone to use this software for any purpose, |
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// including commercial applications, and to alter it and redistribute it |
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// freely, subject to the following restrictions: |
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// |
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// 1. The origin of this software must not be misrepresented; you must not |
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// claim that you wrote the original software. If you use this software |
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// in a product, an acknowledgment in the product documentation would |
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// be appreciated but is not required. |
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// |
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// 2. Altered source versions must be plainly marked as such, and must not |
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// be misrepresented as being the original software. |
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// |
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// 3. This notice may not be removed or altered from any source |
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// distribution. |
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// |
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//======================================================================== |
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// Please use C89 style variable declarations in this file because VS 2010 |
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//======================================================================== |
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#include "internal.h" |
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////////////////////////////////////////////////////////////////////////// |
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////// GLFW internal API ////// |
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////////////////////////////////////////////////////////////////////////// |
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// Initialise timer |
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// |
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void _glfwInitTimerWin32(void) |
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{ |
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uint64_t frequency; |
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if (QueryPerformanceFrequency((LARGE_INTEGER*) &frequency)) |
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{ |
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_glfw.timer.win32.hasPC = GLFW_TRUE; |
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_glfw.timer.win32.frequency = frequency; |
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} |
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else |
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{ |
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_glfw.timer.win32.hasPC = GLFW_FALSE; |
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_glfw.timer.win32.frequency = 1000; |
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} |
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} |
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////////////////////////////////////////////////////////////////////////// |
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////// GLFW platform API ////// |
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////////////////////////////////////////////////////////////////////////// |
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uint64_t _glfwPlatformGetTimerValue(void) |
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{ |
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if (_glfw.timer.win32.hasPC) |
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{ |
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uint64_t value; |
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QueryPerformanceCounter((LARGE_INTEGER*) &value); |
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return value; |
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} |
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else |
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return (uint64_t) timeGetTime(); |
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} |
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uint64_t _glfwPlatformGetTimerFrequency(void) |
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{ |
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return _glfw.timer.win32.frequency; |
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} |
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