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use ArchHooks::GetMicrosecondsSinceStart

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This commit is contained in:
Glenn Maynard
2004-06-11 01:14:42 +00:00
parent c3c3eea688
commit 0ebe5985b9
1 changed files with 8 additions and 22 deletions
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stepmania/src/RageTimer.cpp
+8 -22
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@@ -3,35 +3,21 @@
#include "RageTimer.h"
#include "RageLog.h"
#include "SDL.h"
#include "SDL_timer.h"
#include "arch/ArchHooks/ArchHooks.h"
/* We only actually get 1000 using SDL. */
#define TIMESTAMP_RESOLUTION 1000000
const RageTimer RageZeroTimer(0,0);
void mySDL_GetTicks( unsigned &secs, unsigned &us )
static void GetTime( unsigned &secs, unsigned &us )
{
static bool bInitialized = false;
if( !bInitialized )
{
bInitialized = true;
/* We don't want the timer system; it starts a thread, and we never use it. */
// if( !SDL_WasInit(SDL_INIT_TIMER) )
// SDL_InitSubSystem( SDL_INIT_TIMER );
/* Calling this will still initialize the hidden "ticks" system, so we can
* use SDL_GetTicks. */
SDL_InitSubSystem( 0 );
}
/* Ticks may be less than last for at least two reasons: the time may have wrapped (after
/*
* Ticks may be less than last for at least two reasons: the time may have wrapped (after
* about 49 days), or the system clock may have moved backwards. If the system clock moves
* backwards, we can't just clamp the time; if it moved back an hour, we'll sit around for
* an hour until it catches up.
*
* Keep track of an offset: the amount of time to add to the result of SDL_GetTicks.
* Keep track of an offset: the amount of time to add to the result of GetMicrosecondsSinceStart.
* If we move back by 100ms, the offset will be increased by 100ms. If we loop, the
* offset will be increased by the duration 2^32 ticks. This is stored in the same
* notation as RageTimer: one 32-bit int for seconds and another for microseconds, so
@@ -41,7 +27,7 @@ void mySDL_GetTicks( unsigned &secs, unsigned &us )
static uint32_t last = 0;
static uint32_t offset_secs = 0, offset_us = 0;
const uint32_t millisecs = SDL_GetTicks();
const uint32_t millisecs = (uint32_t) (ArchHooks::GetMicrosecondsSinceStart(true)/1000);
/* The time has wrapped if the last time was very high and the current time is very low. */
const uint32_t one_day = 24*60*60*1000;
@@ -84,13 +70,13 @@ void mySDL_GetTicks( unsigned &secs, unsigned &us )
float RageTimer::GetTimeSinceStart()
{
unsigned secs, us;
mySDL_GetTicks( secs, us );
GetTime( secs, us );
return secs + us / 1000000.0f;
}
void RageTimer::Touch()
{
mySDL_GetTicks( this->m_secs, this->m_us );
GetTime( this->m_secs, this->m_us );
}
float RageTimer::Ago() const