1 //========================================================================
2 // GLFW 3.2 OS X - www.glfw.org
3 //------------------------------------------------------------------------
4 // Copyright (c) 2009-2016 Camilla Berglund <elmindreda@glfw.org>
5 //
6 // This software is provided 'as-is', without any express or implied
7 // warranty. In no event will the authors be held liable for any damages
8 // arising from the use of this software.
9 //
10 // Permission is granted to anyone to use this software for any purpose,
11 // including commercial applications, and to alter it and redistribute it
12 // freely, subject to the following restrictions:
13 //
14 // 1. The origin of this software must not be misrepresented; you must not
15 // claim that you wrote the original software. If you use this software
16 // in a product, an acknowledgment in the product documentation would
17 // be appreciated but is not required.
18 //
19 // 2. Altered source versions must be plainly marked as such, and must not
20 // be misrepresented as being the original software.
21 //
22 // 3. This notice may not be removed or altered from any source
23 // distribution.
24 //
25 //========================================================================
26
27 #include "internal.h"
28
29 #include <mach/mach_time.h>
30
31
32 //////////////////////////////////////////////////////////////////////////
33 ////// GLFW internal API //////
34 //////////////////////////////////////////////////////////////////////////
35
36 // Initialise timer
37 //
_glfwInitTimerNS(void)38 void _glfwInitTimerNS(void)
39 {
40 mach_timebase_info_data_t info;
41 mach_timebase_info(&info);
42
43 _glfw.ns_time.frequency = (info.denom * 1e9) / info.numer;
44 }
45
46
47 //////////////////////////////////////////////////////////////////////////
48 ////// GLFW platform API //////
49 //////////////////////////////////////////////////////////////////////////
50
_glfwPlatformGetTimerValue(void)51 uint64_t _glfwPlatformGetTimerValue(void)
52 {
53 return mach_absolute_time();
54 }
55
_glfwPlatformGetTimerFrequency(void)56 uint64_t _glfwPlatformGetTimerFrequency(void)
57 {
58 return _glfw.ns_time.frequency;
59 }
60
61