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split out GameLoop ...

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Glenn Maynard
2005-07-13 00:51:38 +00:00
parent 1f9b40ca23
commit 90e8d8f130
1 changed files with 0 additions and 88 deletions
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stepmania/src/StepMania.cpp
-88
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@@ -1463,94 +1463,6 @@ bool AppHasFocus()
return g_bHasFocus; return g_bHasFocus;
} }
static void CheckSkips( float fDeltaTime )
{
if( !PREFSMAN->m_bLogSkips )
return;
static int iLastFPS = 0;
int iThisFPS = DISPLAY->GetFPS();
/* If vsync is on, and we have a solid framerate (vsync == refresh and we've sustained this
* for at least one frame), we expect the amount of time for the last frame to be 1/FPS. */
if( iThisFPS != DISPLAY->GetVideoModeParams().rate || iThisFPS != iLastFPS )
{
iLastFPS = iThisFPS;
return;
}
const float fExpectedTime = 1.0f / iThisFPS;
const float fDifference = fDeltaTime - fExpectedTime;
if( fabsf(fDifference) > 0.002f && fabsf(fDifference) < 0.100f )
LOG->Trace("GameLoop timer skip: %i FPS, expected %.3f, got %.3f (%.3f difference)",
iThisFPS, fExpectedTime, fDeltaTime, fDifference );
}
static void GameLoop()
{
RageTimer timer;
while(!g_bQuitting)
{
/*
* Update
*/
float fDeltaTime = timer.GetDeltaTime();
if( PREFSMAN->m_fConstantUpdateDeltaSeconds > 0 )
fDeltaTime = PREFSMAN->m_fConstantUpdateDeltaSeconds;
CheckSkips( fDeltaTime );
if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_TAB) ) ) {
if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_ACCENT) ) )
fDeltaTime = 0; /* both; stop time */
else
fDeltaTime *= 4;
}
else if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_ACCENT) ) )
{
fDeltaTime /= 4;
}
/* Update SOUNDMAN early (before any RageSound::GetPosition calls), to flush position data. */
SOUNDMAN->Update( fDeltaTime );
/* Update song beat information -before- calling update on all the classes that
* depend on it. If you don't do this first, the classes are all acting on old
* information and will lag. (but no longer fatally, due to timestamping -glenn) */
SOUND->Update( fDeltaTime );
TEXTUREMAN->Update( fDeltaTime );
GAMESTATE->Update( fDeltaTime );
SCREENMAN->Update( fDeltaTime );
MEMCARDMAN->Update( fDeltaTime );
NSMAN->Update( fDeltaTime );
/* Important: Process input AFTER updating game logic, or input will be acting on song beat from last frame */
HandleInputEvents( fDeltaTime );
LIGHTSMAN->Update( fDeltaTime );
HOOKS->Update( fDeltaTime );
/*
* Render
*/
SCREENMAN->Draw();
/* If we don't have focus, give up lots of CPU. */
if( !g_bHasFocus )
usleep( 10000 );// give some time to other processes and threads
#if defined(_WINDOWS)
/* In Windows, we want to give up some CPU for other threads. Most OS's do
* this more intelligently. */
else
usleep( 1000 ); // give some time to other processes and threads
#endif
}
}
/* /*
* (c) 2001-2004 Chris Danford, Glenn Maynard * (c) 2001-2004 Chris Danford, Glenn Maynard
* All rights reserved. * All rights reserved.