1 //========================================================================
2 // GLFW 3.5 Win32 - www.glfw.org
3 //------------------------------------------------------------------------
4 // Copyright (c) 2002-2006 Marcus Geelnard
5 // Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
6 //
7 // This software is provided 'as-is', without any express or implied
8 // warranty. In no event will the authors be held liable for any damages
9 // arising from the use of this software.
10 //
11 // Permission is granted to anyone to use this software for any purpose,
12 // including commercial applications, and to alter it and redistribute it
13 // freely, subject to the following restrictions:
14 //
15 // 1. The origin of this software must not be misrepresented; you must not
16 // claim that you wrote the original software. If you use this software
17 // in a product, an acknowledgment in the product documentation would
18 // be appreciated but is not required.
19 //
20 // 2. Altered source versions must be plainly marked as such, and must not
21 // be misrepresented as being the original software.
22 //
23 // 3. This notice may not be removed or altered from any source
24 // distribution.
25 //
26 //========================================================================
27
28 #include "internal.h"
29
30 #if defined(GLFW_BUILD_WIN32_TIMER)
31
32 //////////////////////////////////////////////////////////////////////////
33 ////// GLFW platform API //////
34 //////////////////////////////////////////////////////////////////////////
35
_glfwPlatformInitTimer(void)36 void _glfwPlatformInitTimer(void)
37 {
38 QueryPerformanceFrequency((LARGE_INTEGER*) &_glfw.timer.win32.frequency);
39 }
40
_glfwPlatformGetTimerValue(void)41 uint64_t _glfwPlatformGetTimerValue(void)
42 {
43 uint64_t value;
44 QueryPerformanceCounter((LARGE_INTEGER*) &value);
45 return value;
46 }
47
_glfwPlatformGetTimerFrequency(void)48 uint64_t _glfwPlatformGetTimerFrequency(void)
49 {
50 return _glfw.timer.win32.frequency;
51 }
52
53 #endif // GLFW_BUILD_WIN32_TIMER
54
55