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engine/audio/private/vox_private.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+//
+//-----------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef VOX_PRIVATE_H
+#define VOX_PRIVATE_H
+#pragma once
+
+#ifndef VOX_H
+#include "vox.h"
+#endif
+
+#ifndef UTLVECTOR_H
+#include "utlvector.h"
+#endif
+
+#include "utlsymbol.h"
+
+struct channel_t;
+class CSfxTable;
+class CAudioMixer;
+
+struct voxword_t
+{
+	int		volume;						// increase percent, ie: 125 = 125% increase
+	int		pitch;						// pitch shift up percent
+	int		start;						// offset start of wave percent
+	int		end;						// offset end of wave percent
+	int		cbtrim;						// end of wave after being trimmed to 'end'
+	int		fKeepCached;				// 1 if this word was already in cache before sentence referenced it
+	int		samplefrac;					// if pitch shifting, this is position into wav * 256
+	int		timecompress;				// % of wave to skip during playback (causes no pitch shift)
+	CSfxTable *sfx;					// name and cache pointer
+};
+
+#define CVOXWORDMAX		32
+#define CVOXZEROSCANMAX	255			// scan up to this many samples for next zero crossing
+
+struct sentence_t
+{
+	sentence_t() :
+		pName( 0 ),
+		length( 0.0f ),
+		closecaption( false )
+	{
+	}
+
+	char		*pName;
+	float		length;
+	bool		closecaption : 7;
+	bool		isPrecached : 1;
+	CUtlSymbol	caption;
+};
+
+extern CUtlVector<sentence_t>	g_Sentences;
+
+
+extern int				VOX_FPaintPitchChannelFrom8( channel_t *ch, sfxcache_t *sc, int count, int pitch, int timecompress );
+extern void				VOX_TrimStartEndTimes( channel_t *ch, sfxcache_t *sc );
+extern int				VOX_ParseWordParams( char *psz, voxword_t *pvoxword, int fFirst );
+extern void				VOX_SetChanVol( channel_t *ch );
+extern char				**VOX_ParseString( char *psz );
+extern CAudioMixer		*CreateSentenceMixer( voxword_t *pwords );
+
+#endif // VOX_PRIVATE_H