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wsamovie.h

/* ScummVM - Kyrandia Interpreter
 * Copyright (C) 2003-2004 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: /cvsroot/scummvm/scummvm/kyra/wsamovie.h,v 1.3 2004/11/14 20:11:22 sev Exp $
 *
 */

#ifndef MOVIES_H
#define MOVIES_H

#include "resource.h"

namespace Kyra {

// a generic movie
class Movie {
      
public:
      
      virtual ~Movie() { _transparency = -1; _ownPalette = 0; _frameCount = 0; }
            
      virtual void renderFrame(uint8* plane, uint16 planepitch, uint16 planeheight, uint16 frame) = 0;
      virtual const uint8* loadFrame(uint16 frame, uint16* width = 0, uint16* height = 0) = 0;
      virtual uint16 countFrames(void) { return _frameCount; }
            
      // could be deleted(not imdiantly maybe it's needed sometime)
      virtual void transparency(int16 color) { _transparency = color; }
      virtual void position(uint16 x, uint16 y) = 0;
            
      virtual bool hasPalette(void) { return (_ownPalette != 0); }
      virtual Palette* palette(void) { return _ownPalette; }
      
      virtual bool looping(void) { return false; }
      virtual uint32 frameChange(void) { return 100; }            
      virtual void setImageBackground(uint8* plane, uint16 planepitch, uint16 height) {};
      
protected:
      int16 _transparency;
      uint16 _frameCount;
      Palette* _ownPalette;
};

// movie format for Kyrandia 1
class WSAMovieV1 : public Movie {
      
public:
      
      WSAMovieV1(uint8* data, uint32 size, uint8 gameid);
      ~WSAMovieV1();
            
      void renderFrame(uint8* plane, uint16 planepitch, uint16 planeheight, uint16 frame);
      const uint8* loadFrame(uint16 frame, uint16* width, uint16* height);
      void setImageBackground(uint8* plane, uint16 planepitch, uint16 height);
      
      void position(uint16 x, uint16 y) { _wsaHeader._xPos = x; _wsaHeader._yPos = y; }
protected:
      
      uint8* _buffer;
      
#pragma START_PACK_STRUCTS    
      struct WSAHeader {
            uint16 _numFrames; // All right
            uint16 _width; // All right
            uint16 _height; // All right
            uint8 _xPos; // is wrong
            uint8 _yPos; // is wrong
            uint16 _delta; // is wrong
            uint16 _type; // is wrong
      } GCC_PACK _wsaHeader;
#pragma END_PACK_STRUCTS

      uint32* _offsetTable;
      
      uint8* _currentFrame;
      uint16 _prefetchedFrame;
      
      uint8* _background; // only a pointer to the screen
      uint16 _backWidth, _backHeight;
};
      
// movie format for Kyrandia 2+
class WSAMovieV2 : public Movie {
      
public:
      WSAMovieV2(uint8* data, uint32 size);
      ~WSAMovieV2();
      
      void renderFrame(uint8* plane, uint16 planepitch, uint16 planeheight, uint16 frame);
      const uint8* loadFrame(uint16 frame, uint16* width, uint16* height);
      void setImageBackground(uint8* plane, uint16 planepitch, uint16 height);
      
      void position(uint16 x, uint16 y) { _wsaHeader._xPos = x; _wsaHeader._yPos = y; }
      bool looping(void) { return _looping; }
protected:
      
      uint8* _buffer;
            
      struct WSAHeader {
            uint16 _numFrames; // All right
            uint16 _width; // should be right
            uint16 _height; // should be right
            uint16 _xPos; // could be wrong
            uint16 _yPos; // could be wrong
            uint16 _delta; // could be wrong
            uint16 _type; // should be right
      } GCC_PACK _wsaHeader;
      
      uint32* _offsetTable;
      
      uint8* _currentFrame;
      uint16 _prefetchedFrame;
      
      uint8* _background; // only a pointer to the screen
      uint16 _backWidth, _backHeight;
      
      bool _looping;
};
} // end of namespace Kyra

#endif


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