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Use CREATE_WAITABLE_TIMER_HIGH_RESOLUTION flag in SDL_Delay on Windows 10 version 1803 and later

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Rémy Tassoux 2022-09-15 16:17:03 +02:00 committed by Sam Lantinga
parent 6d5526f3a5
commit 7d5ffbdab7
1 changed files with 26 additions and 12 deletions
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38
src/timer/windows/SDL_systimer.c
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@ -146,18 +146,32 @@ SDL_GetPerformanceFrequency(void)
void
SDL_Delay(Uint32 ms)
{
/* Sleep() is not publicly available to apps in early versions of WinRT.
*
* Visual C++ 2013 Update 4 re-introduced Sleep() for Windows 8.1 and
* Windows Phone 8.1.
*
* Use the compiler version to determine availability.
*
* NOTE #1: _MSC_FULL_VER == 180030723 for Visual C++ 2013 Update 3.
* NOTE #2: Visual C++ 2013, when compiling for Windows 8.0 and
* Windows Phone 8.0, uses the Visual C++ 2012 compiler to build
* apps and libraries.
*/
/* CREATE_WAITABLE_TIMER_HIGH_RESOLUTION flag was added in Windows 10 version 1803.
*
* Sleep() is not publicly available to apps in early versions of WinRT.
*
* Visual C++ 2013 Update 4 re-introduced Sleep() for Windows 8.1 and
* Windows Phone 8.1.
*
* Use the compiler version to determine availability.
*
* NOTE #1: _MSC_FULL_VER == 180030723 for Visual C++ 2013 Update 3.
* NOTE #2: Visual C++ 2013, when compiling for Windows 8.0 and
* Windows Phone 8.0, uses the Visual C++ 2012 compiler to build
* apps and libraries.
*/
#ifdef CREATE_WAITABLE_TIMER_HIGH_RESOLUTION
HANDLE timer = CreateWaitableTimerExW(NULL, NULL, CREATE_WAITABLE_TIMER_HIGH_RESOLUTION, TIMER_ALL_ACCESS);
if (timer) {
LARGE_INTEGER due_time;
due_time.QuadPart = -(LONGLONG)(ms * 10000);
if (SetWaitableTimerEx(timer, &due_time, 0, NULL, NULL, NULL, 0)) {
WaitForSingleObject(timer, INFINITE);
}
CloseHandle(timer);
return;
}
#endif
#if defined(__WINRT__) && defined(_MSC_FULL_VER) && (_MSC_FULL_VER <= 180030723)
static HANDLE mutex = 0;
if (!mutex) {