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public/scenefilecache/ISceneFileCache.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================
+
+#ifndef ISCENEFILECACHE_H
+#define ISCENEFILECACHE_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "interface.h"
+#include "appframework/IAppSystem.h"
+
+// the file cache can support persisting some calcs
+struct SceneCachedData_t
+{
+	unsigned int	msecs;
+	int				numSounds;
+	int				sceneId;
+};
+
+class ISceneFileCache : public IAppSystem
+{
+public:
+
+	// async implemenation
+	virtual size_t		GetSceneBufferSize( char const *filename ) = 0;
+	virtual bool		GetSceneData( char const *filename, byte *buf, size_t bufsize ) = 0;
+
+	// persisted scene data, returns true if valid, false otherwise
+	virtual bool		GetSceneCachedData( char const *pFilename, SceneCachedData_t *pData ) = 0;
+	virtual short		GetSceneCachedSound( int iScene, int iSound ) = 0;
+	virtual const char	*GetSceneString( short stringId ) = 0;
+
+	// Physically reloads image from disk
+	virtual void		Reload() = 0;
+};
+
+#define SCENE_FILE_CACHE_INTERFACE_VERSION "SceneFileCache002"
+
+#endif // ISCENEFILECACHE_H