//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================

#ifndef ISCENEFILECACHE_H
#define ISCENEFILECACHE_H
#ifdef _WIN32
#pragma once
#endif

#include "appframework/IAppSystem.h"
#include "interface.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