initial

public/mouthinfo.h

@@ -0,0 +1,201 @@
+//========= Copyright (c) 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+//
+//-----------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+#if !defined( MOUTHINFO_H )
+#define MOUTHINFO_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+class CAudioSource;
+
+#pragma pack(push,4)
+class CVoiceData
+{
+public:
+	CVoiceData( void )
+	{
+		m_flElapsed = 0.0f;
+		m_pAudioSource = NULL;
+		m_bIgnorePhonemes = false;
+	}
+
+	void SetElapsedTime( float t )
+	{
+		m_flElapsed = t;
+	}
+
+	float GetElapsedTime() const
+	{
+		return m_flElapsed;
+	}
+
+	void SetSource( CAudioSource *source, bool bIgnorePhonemes )
+	{
+		m_pAudioSource = source;
+		m_bIgnorePhonemes = bIgnorePhonemes;
+	}
+
+	bool ShouldIgnorePhonemes() const
+	{
+		return m_bIgnorePhonemes;
+	}
+
+	CAudioSource	*GetSource()
+	{
+		return m_pAudioSource;
+	}
+
+private:
+	float					m_flElapsed;
+	CAudioSource 			*m_pAudioSource;
+	bool					m_bIgnorePhonemes;
+};
+
+#define UNKNOWN_VOICE_SOURCE -1
+
+//-----------------------------------------------------------------------------
+// Purpose: Describes position of mouth for lip syncing
+//-----------------------------------------------------------------------------
+class CMouthInfo
+{
+public:
+	// 0 = mouth closed, 255 = mouth agape
+	byte					mouthopen;		
+	// counter for running average
+	byte					sndcount;		
+	// running average
+	int						sndavg;			
+
+public:
+							CMouthInfo( void ) { m_nVoiceSources = 0; m_needsEnvelope = false; }
+							~CMouthInfo( void ) { ClearVoiceSources(); }
+
+	int						GetNumVoiceSources( void );
+	CVoiceData				*GetVoiceSource( int number );
+
+	void					ClearVoiceSources( void );
+	int						GetIndexForSource( CAudioSource *source );
+	bool					IsSourceReferenced( CAudioSource *source );
+
+	CVoiceData				*AddSource( CAudioSource *source, bool bIgnorePhonemes );
+
+	void					RemoveSource( CAudioSource *source );
+	void					RemoveSourceByIndex( int index );
+
+	bool					IsActive( void );
+	bool					NeedsEnvelope() { return m_needsEnvelope != 0; }
+	void					ActivateEnvelope() { m_needsEnvelope = true; }
+
+private:
+	enum
+	{
+		MAX_VOICE_DATA = 4
+	};
+
+	short					m_nVoiceSources;
+	short					m_needsEnvelope; 
+	CVoiceData				m_VoiceSources[ MAX_VOICE_DATA ];
+};
+#pragma pack(pop)
+
+
+inline bool CMouthInfo::IsActive( void )
+{
+	return ( GetNumVoiceSources() > 0 ) ? true : false;
+}
+
+inline int CMouthInfo::GetNumVoiceSources( void )
+{
+	return m_nVoiceSources;
+}
+
+inline CVoiceData *CMouthInfo::GetVoiceSource( int number )
+{
+	if ( number < 0 || number >= m_nVoiceSources )
+		return NULL;
+
+	return &m_VoiceSources[ number ];
+}
+
+inline void CMouthInfo::ClearVoiceSources( void )
+{
+	m_nVoiceSources = 0;
+}
+
+inline int CMouthInfo::GetIndexForSource( CAudioSource *source )
+{
+	for ( int i = 0; i < m_nVoiceSources; i++ )
+	{
+		CVoiceData *v = &m_VoiceSources[ i ];
+		if ( !v )
+			continue;
+
+		if ( v->GetSource() == source )
+			return i;
+	}
+
+	return UNKNOWN_VOICE_SOURCE;
+}
+
+inline bool CMouthInfo::IsSourceReferenced( CAudioSource *source )
+{
+	if ( GetIndexForSource( source ) != UNKNOWN_VOICE_SOURCE )
+		return true;
+
+	return false;
+}
+
+inline void CMouthInfo::RemoveSource( CAudioSource *source )
+{
+	int idx = GetIndexForSource( source );
+	if ( idx == UNKNOWN_VOICE_SOURCE )
+		return;
+
+	RemoveSourceByIndex( idx );
+}
+
+inline void CMouthInfo::RemoveSourceByIndex( int index )
+{
+	if ( index < 0 || index >= m_nVoiceSources )
+		return;
+
+	--m_nVoiceSources;
+	if ( m_nVoiceSources > 0 )
+	{
+		m_VoiceSources[ index ] = m_VoiceSources[ m_nVoiceSources ];
+	}
+}
+
+inline CVoiceData *CMouthInfo::AddSource( CAudioSource *source, bool bIgnorePhonemes )
+{
+	int idx = GetIndexForSource( source );
+	if ( idx == UNKNOWN_VOICE_SOURCE )
+	{
+		if ( m_nVoiceSources < MAX_VOICE_DATA )
+		{
+			idx = m_nVoiceSources++;
+		}
+		else
+		{
+			// No room!
+			return NULL;
+		}
+	}
+
+	CVoiceData *data = &m_VoiceSources[ idx ];
+	data->SetSource( source, bIgnorePhonemes );
+	data->SetElapsedTime( 0.0f );
+	return data;
+}
+
+#endif // MOUTHINFO_H