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bankman.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2003-2005 The ScummVM project
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.      See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/queen/bankman.h,v 1.8.2.1 2005/10/18 02:11:19 sev Exp $
 *
 */

#ifndef QUEENBANKMAN_H
#define QUEENBANKMAN_H

#include "common/util.h"
#include "queen/structs.h"

namespace Queen {

class Resource;

class BankManager {
public:

      BankManager(Resource *res);
      ~BankManager();

      //! load a bank into the specified slot
      void load(const char *bankname, uint32 bankslot);

      //! unpack a frame from a loaded bank
      void unpack(uint32 srcframe, uint32 dstframe, uint32 bankslot);

      //! unpack a frame over an existing one from a loaded bank
      void overpack(uint32 srcframe, uint32 dstframe, uint32 bankslot);

      //! close a bank
      void close(uint32 bankslot);

      //! get a reference to unpacked frame
      BobFrame *fetchFrame(uint32 index);

      //! erase a frame
      void eraseFrame(uint32 index);

      //! erase all unpacked frames
      void eraseFrames(bool joe);

      enum {
            MAX_BANK_SIZE     = 110,
            MAX_FRAMES_NUMBER = 256,
            MAX_BANKS_NUMBER  =  18
      };

private:

      struct PackedBank {
            uint32 indexes[MAX_BANK_SIZE];
            uint8 *data;
      };

      //! unpacked bob frames
      BobFrame _frames[MAX_FRAMES_NUMBER];

       //! banked bob frames
      PackedBank _banks[MAX_BANKS_NUMBER];

      //! loaded banks names
      char _loadedBanks[MAX_BANKS_NUMBER][20];

      Resource *_res;
};

} // End of namespace Queen

#endif

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