// Win32 multimedia timing entry points.

#include <stdint.h>
#include <ntlite/syscall.h>

typedef unsigned int MMRESULT;

#define MMSYSERR_NOERROR 0u

// Returns monotonic milliseconds since boot.
__declspec(dllexport) unsigned long timeGetTime(void) {
    uint64_t frequency = 0;
    if (SysGetTickFrequency(&frequency) != NTLSTATUS_SUCCESS || !frequency)
        return 0;
    return (unsigned long)SysTicksToMilliseconds(SysGetTick(), frequency);
}

// Accepts timer-resolution requests without reprogramming the native timer.
__declspec(dllexport) MMRESULT timeBeginPeriod(unsigned int periodMilliseconds) {
    (void)periodMilliseconds;
    return MMSYSERR_NOERROR;
}

// Releases one timer-resolution request without changing native timer policy.
__declspec(dllexport) MMRESULT timeEndPeriod(unsigned int periodMilliseconds) {
    (void)periodMilliseconds;
    return MMSYSERR_NOERROR;
}