| 1 | //======================================================================== |
| 2 | // GLFW 3.3 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 | // It is fine to use C99 in this file because it will not be built with VS |
| 27 | //======================================================================== |
| 28 | |
| 29 | #include "internal.h" |
| 30 | |
| 31 | #include <mach/mach_time.h> |
| 32 | |
| 33 | |
| 34 | ////////////////////////////////////////////////////////////////////////// |
| 35 | ////// GLFW internal API ////// |
| 36 | ////////////////////////////////////////////////////////////////////////// |
| 37 | |
| 38 | // Initialise timer |
| 39 | // |
| 40 | void _glfwInitTimerNS(void) |
| 41 | { |
| 42 | mach_timebase_info_data_t info; |
| 43 | mach_timebase_info(&info); |
| 44 | |
| 45 | _glfw.timer.ns.frequency = (info.denom * 1e9) / info.numer; |
| 46 | } |
| 47 | |
| 48 | |
| 49 | ////////////////////////////////////////////////////////////////////////// |
| 50 | ////// GLFW platform API ////// |
| 51 | ////////////////////////////////////////////////////////////////////////// |
| 52 | |
| 53 | uint64_t _glfwPlatformGetTimerValue(void) |
| 54 | { |
| 55 | return mach_absolute_time(); |
| 56 | } |
| 57 | |
| 58 | uint64_t _glfwPlatformGetTimerFrequency(void) |
| 59 | { |
| 60 | return _glfw.timer.ns.frequency; |
| 61 | } |
| 62 |