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REVIEWED: WaitTime() #1841

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Avoid global variables dependency, now the function is self-contained.
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Ray 2021-06-24 11:01:44 +02:00
parent 2cce5a24c9
commit 4e9afac2a5
1 changed files with 15 additions and 17 deletions
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32
src/core.c
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@ -4716,29 +4716,23 @@ static void InitTimer(void)
// Ref: http://www.geisswerks.com/ryan/FAQS/timing.html --> All about timming on Win32! // Ref: http://www.geisswerks.com/ryan/FAQS/timing.html --> All about timming on Win32!
void WaitTime(float ms) void WaitTime(float ms)
{ {
#if defined(PLATFORM_UWP)
UWPGetSleepFunc()(ms/1000);
return;
#endif
#if defined(SUPPORT_BUSY_WAIT_LOOP) #if defined(SUPPORT_BUSY_WAIT_LOOP)
double prevTime = GetTime(); double previousTime = GetTime();
double nextTime = 0.0; double currentTime = 0.0;
// Busy wait loop // Busy wait loop
while ((nextTime - prevTime) < ms/1000.0f) nextTime = GetTime(); while ((currentTime - previousTime) < ms/1000.0f) currentTime = GetTime();
#else #else
#if defined(SUPPORT_PARTIALBUSY_WAIT_LOOP) #if defined(SUPPORT_PARTIALBUSY_WAIT_LOOP)
#define DEFAULT_PARTIALBUSY_WAIT_TIME 4 double busyWait = ms*0.05; // NOTE: We are using a busy wait of 5% of the time
#define PARTIALBUSY_WAIT_FACTOR 0.95 ms -= (float)busyWait;
double halfWait = DEFAULT_PARTIALBUSY_WAIT_TIME;
if (CORE.Time.target > 0) halfWait = CORE.Time.target*PARTIALBUSY_WAIT_FACTOR;
double destTime = GetTime() + ms/1000;
if (ms > halfWait) ms -= (float)halfWait;
#endif #endif
// System halt functions
#if defined(PLATFORM_UWP)
UWPGetSleepFunc()(ms/1000);
return;
#endif
#if defined(_WIN32) #if defined(_WIN32)
Sleep((unsigned int)ms); Sleep((unsigned int)ms);
#endif #endif
@ -4757,7 +4751,11 @@ void WaitTime(float ms)
#endif #endif
#if defined(SUPPORT_PARTIALBUSY_WAIT_LOOP) #if defined(SUPPORT_PARTIALBUSY_WAIT_LOOP)
while (GetTime() < destTime) { } double previousTime = GetTime();
double currentTime = 0.0;
// Partial busy wait loop (only a fraction of the total wait time)
while ((currentTime - previousTime) < busyWait/1000.0f) currentTime = GetTime();
#endif #endif
#endif #endif
} }