Uint32
SDL_GetTicks(void)
{
DWORD now;
#ifndef USE_GETTICKCOUNT
LARGE_INTEGER hires_now;
#endif
if (!ticks_started) {
SDL_TicksInit();
}
#ifdef USE_GETTICKCOUNT
now = GetTickCount();
#else
if (hires_timer_available) {
QueryPerformanceCounter(&hires_now);
hires_now.QuadPart -= hires_start_ticks.QuadPart;
hires_now.QuadPart *= 1000;
hires_now.QuadPart /= hires_ticks_per_second.QuadPart;
return (DWORD) hires_now.QuadPart;
} else {
#ifdef __WINRT__
now = 0;
#else
now = timeGetTime();
#endif /* __WINRT__ */
}
#endif
return (now - start);
}
Uint32
SDL_GetTicks(void)
{
Uint32 ticks;
if (!ticks_started) {
SDL_TicksInit();
}
if (has_monotonic_time) {
#if HAVE_CLOCK_GETTIME
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
ticks = (now.tv_sec - start_ts.tv_sec) * 1000 + (now.tv_nsec -
start_ts.tv_nsec) / 1000000;
#elif defined(__APPLE__)
uint64_t now = mach_absolute_time();
ticks = (((now - start_mach) * mach_base_info.numer) / mach_base_info.denom) / 1000000;
#endif
} else {
struct timeval now;
gettimeofday(&now, NULL);
ticks =
(now.tv_sec - start_tv.tv_sec) * 1000 + (now.tv_usec -
start_tv.tv_usec) / 1000;
}
return (ticks);
}
Uint64
SDL_GetPerformanceCounter(void)
{
Uint64 ticks;
if (!ticks_started) {
SDL_TicksInit();
}
if (has_monotonic_time) {
#if HAVE_CLOCK_GETTIME
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
ticks = now.tv_sec;
ticks *= 1000000000;
ticks += now.tv_nsec;
#elif defined(__APPLE__)
ticks = mach_absolute_time();
#endif
} else {
struct timeval now;
gettimeofday(&now, NULL);
ticks = now.tv_sec;
ticks *= 1000000;
ticks += now.tv_usec;
}
return (ticks);
}
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.
*/
#if defined(__WINRT__) && defined(_MSC_FULL_VER) && (_MSC_FULL_VER <= 180030723)
static HANDLE mutex = 0;
if (!mutex) {
mutex = CreateEventEx(0, 0, 0, EVENT_ALL_ACCESS);
}
WaitForSingleObjectEx(mutex, ms, FALSE);
#else
if (!ticks_started) {
SDL_TicksInit();
}
Sleep(ms);
#endif
}
Uint32
SDL_GetTicks(void)
{
if (!ticks_started) {
SDL_TicksInit();
}
SDL_Unsupported();
return 0;
}
Uint32 SDL_GetTicks(void)
{
if (!ticks_started) {
SDL_TicksInit();
}
struct timeval now;
Uint32 ticks;
gettimeofday(&now, NULL);
ticks=(now.tv_sec-start.tv_sec)*1000+(now.tv_usec-start.tv_usec)/1000;
return(ticks);
}
Uint64
SDL_GetPerformanceFrequency(void)
{
if (!ticks_started) {
SDL_TicksInit();
}
if (has_monotonic_time) {
#if HAVE_CLOCK_GETTIME
return 1000000000;
#elif defined(__APPLE__)
Uint64 freq = mach_base_info.denom;
freq *= 1000000000;
freq /= mach_base_info.numer;
return freq;
#endif
}
return 1000000;
}
int
SDL_InitSubSystem(Uint32 flags)
{
if (!SDL_MainIsReady) {
SDL_SetError("Application didn't initialize properly, did you include SDL_main.h in the file containing your main() function?");
return -1;
}
/* Clear the error message */
SDL_ClearError();
if ((flags & SDL_INIT_GAMECONTROLLER)) {
/* game controller implies joystick */
flags |= SDL_INIT_JOYSTICK;
}
if ((flags & (SDL_INIT_VIDEO|SDL_INIT_JOYSTICK))) {
/* video or joystick implies events */
flags |= SDL_INIT_EVENTS;
}
#if SDL_VIDEO_DRIVER_WINDOWS
if ((flags & (SDL_INIT_HAPTIC|SDL_INIT_JOYSTICK))) {
if (SDL_HelperWindowCreate() < 0) {
return -1;
}
}
#endif
#if !SDL_TIMERS_DISABLED
SDL_TicksInit();
#endif
/* Initialize the event subsystem */
if ((flags & SDL_INIT_EVENTS)) {
#if !SDL_EVENTS_DISABLED
if (SDL_PrivateShouldInitSubsystem(SDL_INIT_EVENTS)) {
if (SDL_StartEventLoop() < 0) {
return (-1);
}
SDL_QuitInit();
}
SDL_PrivateSubsystemRefCountIncr(SDL_INIT_EVENTS);
#else
return SDL_SetError("SDL not built with events support");
#endif
}
/* Initialize the timer subsystem */
if ((flags & SDL_INIT_TIMER)){
#if !SDL_TIMERS_DISABLED
if (SDL_PrivateShouldInitSubsystem(SDL_INIT_TIMER)) {
if (SDL_TimerInit() < 0) {
return (-1);
}
}
SDL_PrivateSubsystemRefCountIncr(SDL_INIT_TIMER);
#else
return SDL_SetError("SDL not built with timer support");
#endif
}
/* Initialize the video subsystem */
if ((flags & SDL_INIT_VIDEO)){
#if !SDL_VIDEO_DISABLED
if (SDL_PrivateShouldInitSubsystem(SDL_INIT_VIDEO)) {
if (SDL_VideoInit(NULL) < 0) {
return (-1);
}
}
SDL_PrivateSubsystemRefCountIncr(SDL_INIT_VIDEO);
#else
return SDL_SetError("SDL not built with video support");
#endif
}
/* Initialize the audio subsystem */
if ((flags & SDL_INIT_AUDIO)){
#if !SDL_AUDIO_DISABLED
if (SDL_PrivateShouldInitSubsystem(SDL_INIT_AUDIO)) {
if (SDL_AudioInit(NULL) < 0) {
return (-1);
}
}
SDL_PrivateSubsystemRefCountIncr(SDL_INIT_AUDIO);
#else
return SDL_SetError("SDL not built with audio support");
#endif
}
/* Initialize the joystick subsystem */
if ((flags & SDL_INIT_JOYSTICK)){
#if !SDL_JOYSTICK_DISABLED
if (SDL_PrivateShouldInitSubsystem(SDL_INIT_JOYSTICK)) {
if (SDL_JoystickInit() < 0) {
return (-1);
}
}
SDL_PrivateSubsystemRefCountIncr(SDL_INIT_JOYSTICK);
#else
return SDL_SetError("SDL not built with joystick support");
#endif
}
if ((flags & SDL_INIT_GAMECONTROLLER)){
#if !SDL_JOYSTICK_DISABLED
if (SDL_PrivateShouldInitSubsystem(SDL_INIT_GAMECONTROLLER)) {
if (SDL_GameControllerInit() < 0) {
return (-1);
}
}
SDL_PrivateSubsystemRefCountIncr(SDL_INIT_GAMECONTROLLER);
#else
return SDL_SetError("SDL not built with joystick support");
#endif
}
/* Initialize the haptic subsystem */
if ((flags & SDL_INIT_HAPTIC)){
#if !SDL_HAPTIC_DISABLED
if (SDL_PrivateShouldInitSubsystem(SDL_INIT_HAPTIC)) {
if (SDL_HapticInit() < 0) {
return (-1);
}
}
SDL_PrivateSubsystemRefCountIncr(SDL_INIT_HAPTIC);
#else
return SDL_SetError("SDL not built with haptic (force feedback) support");
#endif
}
return (0);
}
