From 39ed87570bdb2f86969d4be821c94b722dc71179 Mon Sep 17 00:00:00 2001
From: Joe Ludwig <joe@valvesoftware.com>
Date: Wed, 26 Jun 2013 15:22:04 -0700
Subject: First version of the SOurce SDK 2013

---
 sp/src/game/shared/SceneCache.cpp | 132 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 sp/src/game/shared/SceneCache.cpp

(limited to 'sp/src/game/shared/SceneCache.cpp')

diff --git a/sp/src/game/shared/SceneCache.cpp b/sp/src/game/shared/SceneCache.cpp
new file mode 100644
index 00000000..1baea839
--- /dev/null
+++ b/sp/src/game/shared/SceneCache.cpp
@@ -0,0 +1,132 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================
+
+#include "cbase.h"
+#include "SceneCache.h"
+#include "choreoscene.h"
+#include "choreoevent.h"
+
+extern ISoundEmitterSystemBase *soundemitterbase;
+CChoreoScene *BlockingLoadScene( const char *filename );
+
+CSceneCache::CSceneCache()
+{
+	msecs = 0;
+}
+
+CSceneCache::CSceneCache( const CSceneCache& src )
+{
+	msecs  = src.msecs;
+	sounds = src.sounds;
+}
+
+int	CSceneCache::GetSoundCount() const
+{
+	return sounds.Count();
+}
+
+char const *CSceneCache::GetSoundName( int index )
+{
+	return soundemitterbase->GetSoundName( sounds[ index ] );
+}
+
+void CSceneCache::Save( CUtlBuffer& buf  )
+{
+	buf.PutUnsignedInt( msecs );
+
+	unsigned short c = GetSoundCount();
+	buf.PutShort( c );
+	
+	Assert( sounds.Count() <= 65536 );
+
+	for ( int i = 0; i < c; ++i )
+	{
+		buf.PutString( GetSoundName( i ) );
+	}
+}
+
+void CSceneCache::Restore( CUtlBuffer& buf  )
+{
+	MEM_ALLOC_CREDIT();
+
+	msecs = buf.GetUnsignedInt();
+
+	unsigned short c = (unsigned short)buf.GetShort();
+
+	for ( int i = 0; i < c; ++i )
+	{
+		char soundname[ 512 ];
+		buf.GetString( soundname, sizeof( soundname ) );
+
+		int idx = soundemitterbase->GetSoundIndex( soundname );
+		if ( idx != -1 )
+		{
+			Assert( idx <= 65535 );
+			if ( sounds.Find( idx ) == sounds.InvalidIndex() )
+			{
+				sounds.AddToTail( (unsigned short)idx );
+			}
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Static method
+// Input  : *event - 
+//			soundlist - 
+//-----------------------------------------------------------------------------
+void CSceneCache::PrecacheSceneEvent( CChoreoEvent *event, CUtlVector< unsigned short >& soundlist )
+{
+	if ( !event || event->GetType() != CChoreoEvent::SPEAK )
+		return;
+
+	int idx = soundemitterbase->GetSoundIndex( event->GetParameters() );
+	if ( idx != -1 )
+	{
+		MEM_ALLOC_CREDIT();
+		Assert( idx <= 65535 );
+		soundlist.AddToTail( (unsigned short)idx );
+	}
+
+	if ( event->GetCloseCaptionType() == CChoreoEvent::CC_MASTER )
+	{
+		char tok[ CChoreoEvent::MAX_CCTOKEN_STRING ];
+		if ( event->GetPlaybackCloseCaptionToken( tok, sizeof( tok ) ) )
+		{
+			int idx = soundemitterbase->GetSoundIndex( tok );
+			if ( idx != -1 && soundlist.Find( idx ) == soundlist.InvalidIndex() )
+			{
+				MEM_ALLOC_CREDIT();
+				Assert( idx <= 65535 );
+				soundlist.AddToTail( (unsigned short)idx );
+			}
+		}
+	}
+}
+
+void CSceneCache::Rebuild( char const *filename )
+{
+	msecs = 0;
+	sounds.RemoveAll();
+
+	CChoreoScene *scene = BlockingLoadScene( filename );
+	if ( scene )
+	{
+		// Walk all events looking for SPEAK events
+		CChoreoEvent *event;
+		int c = scene->GetNumEvents();
+		for ( int i = 0; i < c; ++i )
+		{
+			event = scene->GetEvent( i );
+			PrecacheSceneEvent( event, sounds );
+		}
+
+		// Update scene duration, too
+		msecs = (int)( scene->FindStopTime() * 1000.0f + 0.5f );
+
+		delete scene;
+	}
+}
-- 
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