mirror of
https://github.com/gwm17/glfw.git
synced 2024-11-23 10:48:51 -05:00
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
//========================================================================
|
|
// GLFW 3.3 Win32 - www.glfw.org
|
|
//------------------------------------------------------------------------
|
|
// Copyright (c) 2002-2006 Marcus Geelnard
|
|
// Copyright (c) 2006-2016 Camilla Löwy <elmindreda@glfw.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"
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW internal API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
// Initialise timer
|
|
//
|
|
void _glfwInitTimerWin32(void)
|
|
{
|
|
uint64_t frequency;
|
|
|
|
if (QueryPerformanceFrequency((LARGE_INTEGER*) &frequency))
|
|
{
|
|
_glfw.timer.win32.hasPC = GLFW_TRUE;
|
|
_glfw.timer.win32.frequency = frequency;
|
|
}
|
|
else
|
|
{
|
|
_glfw.timer.win32.hasPC = GLFW_FALSE;
|
|
_glfw.timer.win32.frequency = 1000;
|
|
}
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW platform API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
uint64_t _glfwPlatformGetTimerValue(void)
|
|
{
|
|
if (_glfw.timer.win32.hasPC)
|
|
{
|
|
uint64_t value;
|
|
QueryPerformanceCounter((LARGE_INTEGER*) &value);
|
|
return value;
|
|
}
|
|
else
|
|
return (uint64_t) timeGetTime();
|
|
}
|
|
|
|
uint64_t _glfwPlatformGetTimerFrequency(void)
|
|
{
|
|
return _glfw.timer.win32.frequency;
|
|
}
|
|
|