revert RageSounds::TakeOverSound stuff; ended up not using it

and it broke changing BPM during gameplay
SDL_Delay -> usleep

stepmania/src/RageSounds.cpp

@@ -263,7 +263,7 @@ int MusicThread_start( void *p )
 {
 	while( !g_Shutdown )
 	{
-		SDL_Delay( 10 );
+		usleep( 10000 );
 
 		StartQueuedSounds();
 	}
@@ -325,7 +325,7 @@ RageSounds::~RageSounds()
 		delete pMusic;
 }
 
-static float GetFrameTimingAdjustment( float fDeltaTime )
+float RageSounds::GetFrameTimingAdjustment( float fDeltaTime )
 {
 	/*
 	 * We get one update per frame, and we're updated early, almost immediately after vsync,
@@ -501,28 +501,6 @@ float RageSounds::GetPlayLatency() const
 	return SOUNDMAN->GetPlayLatency();
 }
 
-void RageSounds::TakeOverSound( RageSound *snd, const TimingData *Timing )
-{
-	MusicPlaying *NewMusic = new MusicPlaying( snd );
-
-	NewMusic->m_TimingDelayed = false;
-	NewMusic->m_HasTiming = false;
-	if( Timing )
-	{
-		NewMusic->m_HasTiming = true;
-		NewMusic->m_Timing = *Timing;
-	}
-
-	LockMut( *g_Mutex );
-	delete g_Playing;
-	g_Playing = NewMusic;
-
-	Update( 0 );
-
-	const float fSeconds = g_Playing->m_Music->GetPositionSeconds();
-	LOG->Trace("Updated: %f sec, %f beat", fSeconds, GAMESTATE->m_fSongBeat );
-}
-
 /*
  * Copyright (c) 2003-2004 Glenn Maynard
  * All rights reserved.

stepmania/src/RageSounds.h

@@ -19,15 +19,13 @@ public:
 	void StopMusic() { PlayMusic(""); }
 	CString GetMusicPath() const;
 
-	/* Take ownership of snd; handle timing, free it, etc. */
-	void TakeOverSound( RageSound *snd, const TimingData *Timing );
-
 	void PlayOnce( CString sPath );
 	void PlayOnceFromDir( CString sDir );
 	void PlayOnceFromAnnouncer( CString sFolderName );
 
 	float GetPlayLatency() const;
 	void HandleSongTimer( bool on=true );
+	float GetFrameTimingAdjustment( float fDeltaTime );
 };
 
 extern RageSounds *SOUND;

stepmania/src/ScreenDemonstration.cpp

@@ -99,7 +99,7 @@ void ScreenDemonstration::HandleScreenMessage( const ScreenMessage SM )
 		break;
 
 	case SM_GoToNextScreen:
-		SOUND->StopMusic();
+		m_soundMusic.Stop();
 		GAMESTATE->Reset();
 		SOUNDMAN->SetPrefs( PREFSMAN->m_fSoundVolume );	// turn volume back on
 		SCREENMAN->SetNewScreen( NEXT_SCREEN );

stepmania/src/ScreenGameplay.cpp

@@ -103,7 +103,8 @@ void ScreenGameplay::Init()
 	else
 		LIGHTSMAN->SetLightsMode( LIGHTSMODE_GAMEPLAY );
 
-	m_soundMusic = NULL;
+	/* We do this ourself. */
+	SOUND->HandleSongTimer( false );
 
 	SECONDS_BETWEEN_COMMENTS.Refresh();
 	TICK_EARLY_SECONDS.Refresh();
@@ -768,6 +769,7 @@ ScreenGameplay::~ScreenGameplay()
 		SAFE_DELETE( m_pInventory[p] );
 	}
 	SAFE_DELETE( m_pCombinedLifeMeter );
+	m_soundMusic.StopPlaying();
 
 	m_soundAssistTick.StopPlaying(); /* Stop any queued assist ticks. */
 
@@ -985,8 +987,7 @@ void ScreenGameplay::LoadNextSong()
 		LL.LoadFromLRCFile(GAMESTATE->m_pCurSong->GetLyricsPath(), *GAMESTATE->m_pCurSong);
 
 	
-	m_soundMusic = new RageSound;
-	m_soundMusic->Load( GAMESTATE->m_pCurSong->GetMusicPath() );
+	m_soundMusic.Load( GAMESTATE->m_pCurSong->GetMusicPath() );
 	
 	/* Set up song-specific graphics. */
 	
@@ -1065,8 +1066,6 @@ float ScreenGameplay::StartPlayingSong(float MinTimeToNotes, float MinTimeToMusi
 
 	fStartSecond = min(fStartSecond, -MinTimeToMusic);
 	
-	ASSERT( m_soundMusic );
-
 	RageSoundParams p;
 	p.AccurateSync = true;
 	p.SetPlaybackRate( GAMESTATE->m_SongOptions.m_fMusicRate );
@@ -1077,14 +1076,12 @@ float ScreenGameplay::StartPlayingSong(float MinTimeToNotes, float MinTimeToMusi
 	//used for syncing up songs.
 	NSMAN->StartRequest(); 
 
-	m_soundMusic->Play( &p );
-
-	SOUND->TakeOverSound( m_soundMusic, &GAMESTATE->m_pCurSong->m_Timing );
-	m_soundMusic = NULL; // SOUND owns it now
+	m_soundMusic.Play( &p );
 
 	/* Make sure GAMESTATE->m_fMusicSeconds is set up. */
 	GAMESTATE->m_fMusicSeconds = -5000;
-	SOUND->Update(0);
+	UpdateSongPosition(0);
+
 	ASSERT( GAMESTATE->m_fMusicSeconds > -4000 ); /* make sure the "fake timer" code doesn't trigger */
 
 	/* Return the amount of time until the first beat. */
@@ -1158,6 +1155,17 @@ void ScreenGameplay::PlayAnnouncer( CString type, float fSeconds )
 		m_pCombinedLifeMeter->OnTaunt();
 }
 
+void ScreenGameplay::UpdateSongPosition( float fDeltaTime )
+{
+	if( !m_soundMusic.IsPlaying() )
+		return;
+
+	RageTimer tm;
+	const float fSeconds = m_soundMusic.GetPositionSeconds( NULL, &tm );
+	const float fAdjust = SOUND->GetFrameTimingAdjustment( fDeltaTime );
+	GAMESTATE->UpdateSongPosition( fSeconds+fAdjust, GAMESTATE->m_pCurSong->m_Timing, tm+fAdjust );
+}
+
 void ScreenGameplay::Update( float fDeltaTime )
 {
 	if( GAMESTATE->m_pCurSong == NULL  )
@@ -1202,6 +1210,8 @@ void ScreenGameplay::Update( float fDeltaTime )
 	}
 
 
+	UpdateSongPosition( fDeltaTime );
+
 	if( m_bZeroDeltaOnNextUpdate )
 	{
 		Screen::Update( 0 );
@@ -1607,8 +1617,8 @@ void ScreenGameplay::Input( const DeviceInput& DeviceI, const InputEventType typ
 			 *
 			 * We're doing #3.  I'm not sure which is best.
 			 */
-			SOUND->StopMusic();
-			SOUND->HandleSongTimer( false );
+			
+			m_soundMusic.StopPlaying();
 			m_soundAssistTick.StopPlaying(); /* Stop any queued assist ticks. */
 
 			this->ClearMessageQueue();
@@ -2196,8 +2206,7 @@ void ScreenGameplay::HandleScreenMessage( const ScreenMessage SM )
 
 	case SM_BeginFailed:
 		m_DancingState = STATE_OUTRO;
-		SOUND->StopMusic();
-		SOUND->HandleSongTimer( false );
+		m_soundMusic.StopPlaying();
 		m_soundAssistTick.StopPlaying(); /* Stop any queued assist ticks. */
 		TweenOffScreen();
 		m_Failed.StartTransitioning( SM_GoToScreenAfterFail );

stepmania/src/ScreenGameplay.h

@@ -83,6 +83,7 @@ protected:
 	void PlayAnnouncer( CString type, float fSeconds );
 
 	void PlayTicks();
+	void UpdateSongPosition( float fDeltaTime );
 	void UpdateLyrics( float fDeltaTime );
 	void UpdateCheckFail();
 	void SongFinished();
@@ -176,7 +177,7 @@ protected:
 	bool			m_bDemonstration;
 
 	RageSound		m_soundAssistTick;
-	RageSound		*m_soundMusic;
+	RageSound		m_soundMusic;
 
 	BeginnerHelper	m_BeginnerHelper;
 

stepmania/src/ScreenJukebox.cpp

@@ -216,7 +216,7 @@ void ScreenJukebox::HandleScreenMessage( const ScreenMessage SM )
 		m_Out.StartTransitioning( SM_GoToNextScreen );
 		return;
 	case SM_GoToNextScreen:
-		SOUND->StopMusic();
+		m_soundMusic.Stop();
 		SCREENMAN->SetNewScreen( "ScreenJukebox" );
 		return;
 	}