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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001/2002 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef DECODER_H
#define DECODER_H
#include "config.h"
#include "rect.h"
class Blitter;
class Chunk;
/*! @brief base class for codec decompression.
This class provides an interface for codec decompression.
*/
class Decoder {
private:
Rect _r; //!< current size of the frame object to decode
Point _p; //!< position of the frame object to decode
protected:
const Rect & getRect() const{ return _r; }
const Point & getSize() const { return _p; }
public:
Decoder() {};
virtual ~Decoder() {};
virtual bool initSize(const Point & p, const Rect & r) { _p = p; _r = r; return true; };
virtual bool decode(Blitter &, Chunk &) = 0;
};
#endif
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