1 //========================================================================
2 // GLFW 3.5 macOS - www.glfw.org
3 //------------------------------------------------------------------------
4 // Copyright (c) 2009-2016 Camilla Löwy <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 #if defined(GLFW_BUILD_COCOA_TIMER)
30
31 #include <mach/mach_time.h>
32
33
34 //////////////////////////////////////////////////////////////////////////
35 ////// GLFW platform API //////
36 //////////////////////////////////////////////////////////////////////////
37
_glfwPlatformInitTimer(void)38 void _glfwPlatformInitTimer(void)
39 {
40 mach_timebase_info_data_t info;
41 mach_timebase_info(&info);
42
43 _glfw.timer.ns.frequency = (info.denom * 1e9) / info.numer;
44 }
45
_glfwPlatformGetTimerValue(void)46 uint64_t _glfwPlatformGetTimerValue(void)
47 {
48 return mach_absolute_time();
49 }
50
_glfwPlatformGetTimerFrequency(void)51 uint64_t _glfwPlatformGetTimerFrequency(void)
52 {
53 return _glfw.timer.ns.frequency;
54 }
55
56 #endif // GLFW_BUILD_COCOA_TIMER
57
58