72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
//========================================================================
|
|
// GLFW 3.1 OS X - www.glfw.org
|
|
//------------------------------------------------------------------------
|
|
// Copyright (c) 2009-2010 Camilla Berglund <elmindreda@elmindreda.org>
|
|
//
|
|
// This software is provided 'as-is', without any express or implied
|
|
// warranty. In no event will the authors be held liable for any damages
|
|
// arising from the use of this software.
|
|
//
|
|
// Permission is granted to anyone to use this software for any purpose,
|
|
// including commercial applications, and to alter it and redistribute it
|
|
// freely, subject to the following restrictions:
|
|
//
|
|
// 1. The origin of this software must not be misrepresented; you must not
|
|
// claim that you wrote the original software. If you use this software
|
|
// in a product, an acknowledgment in the product documentation would
|
|
// be appreciated but is not required.
|
|
//
|
|
// 2. Altered source versions must be plainly marked as such, and must not
|
|
// be misrepresented as being the original software.
|
|
//
|
|
// 3. This notice may not be removed or altered from any source
|
|
// distribution.
|
|
//
|
|
//========================================================================
|
|
|
|
#include "internal.h"
|
|
|
|
#include <mach/mach_time.h>
|
|
|
|
|
|
// Return raw time
|
|
//
|
|
static uint64_t getRawTime(void)
|
|
{
|
|
return mach_absolute_time();
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW internal API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
// Initialise timer
|
|
//
|
|
void _glfwInitTimer(void)
|
|
{
|
|
mach_timebase_info_data_t info;
|
|
mach_timebase_info(&info);
|
|
|
|
_glfw.ns_time.resolution = (double) info.numer / (info.denom * 1.0e9);
|
|
_glfw.ns_time.base = getRawTime();
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW platform API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
double _glfwPlatformGetTime(void)
|
|
{
|
|
return (double) (getRawTime() - _glfw.ns_time.base) *
|
|
_glfw.ns_time.resolution;
|
|
}
|
|
|
|
void _glfwPlatformSetTime(double time)
|
|
{
|
|
_glfw.ns_time.base = getRawTime() -
|
|
(uint64_t) (time / _glfw.ns_time.resolution);
|
|
}
|
|
|