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draw.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2004 Ivan Dubrov
 * Copyright (C) 2004-2006 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.
 *
 * $URL: https://svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-0-9-1/engines/gob/draw.h $
 * $Id: draw.h 23012 2006-06-10 14:37:48Z drmccoy $
 *
 */
#ifndef GOB_DRAW_H
#define GOB_DRAW_H

#include "gob/video.h"

namespace Gob {

#define RENDERFLAG_NOINVALIDATE     1
#define RENDERFLAG_CAPTUREPUSH      2
#define RENDERFLAG_CAPTUREPOP 8
#define RENDERFLAG_USEDELTAS  0x10

class Draw {
public:
      struct FontToSprite {
            int8 sprite;
            int8 base;
            int8 width;
            int8 height;
            FontToSprite() : sprite(0), base(0), width(0), height() {}
      };

      int16 _fontIndex;
      int16 _spriteLeft;
      int16 _spriteTop;
      int16 _spriteRight;
      int16 _spriteBottom;
      int16 _destSpriteX;
      int16 _destSpriteY;
      int16 _backColor;
      int16 _frontColor;
      char _letterToPrint;
      FontToSprite _fontToSprite[4];
      int16 _destSurface;
      int16 _sourceSurface;
      int16 _renderFlags;
      int16 _backDeltaX;
      int16 _backDeltaY;
      Video::FontDesc *_fonts[8];
      char *_textToPrint;
      int16 _transparency;
      Video::SurfaceDesc *_spritesArray[50];
      Video::SurfaceDesc *_bigSpritesParts[50][3];
      uint16 _spritesHeights[50];

      int16 _invalidatedCount;
      int16 _invalidatedTops[30];
      int16 _invalidatedLefts[30];
      int16 _invalidatedRights[30];
      int16 _invalidatedBottoms[30];

      int8 _noInvalidated;
//    int8 doFullFlip; // Never used?!?
      int8 _paletteCleared;

      int16 _cursorIndex;
      int16 _transparentCursor;
      uint32 _cursorTimeKey;

      Video::SurfaceDesc *_backSurface;
      Video::SurfaceDesc *_frontSurface;

      int16 _unusedPalette1[18];
      int16 _unusedPalette2[16];
      Video::Color _vgaPalette[256];
      Video::Color _vgaSmallPalette[16];

      int16 _cursorX;
      int16 _cursorY;
      int16 _cursorWidth;
      int16 _cursorHeight;

      int16 _cursorXDeltaVar;
      int16 _cursorYDeltaVar;

      Video::SurfaceDesc *_cursorSprites;
      Video::SurfaceDesc *_cursorSpritesBack;
      Video::SurfaceDesc *_cursorBack;
      int16 _cursorAnim;
      int8 _cursorAnimLow[40];
      int8 _cursorAnimHigh[40];
      int8 _cursorAnimDelays[40];
      int8 _applyPal;

      int16 _palLoadData1[4];
      int16 _palLoadData2[4];
            
      int16 _word_2E8E2;

      void invalidateRect(int16 left, int16 top, int16 right, int16 bottom);
      void blitInvalidated(void);
      void setPalette(void);
      void clearPalette(void);
      void blitCursor(void);

      void animateCursor(int16 cursor);

      void freeSprite(int16 index);
      void adjustCoords(char adjust, int16 *coord1, int16 *coord2);
      void fillRect(int16 index, int16 left, int16 top, int16 right,
            int16 bottom, int16 color);
      void drawSprite(int16 source, int16 dest, int16 left,
                  int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp);
      void drawSprite(Video::SurfaceDesc * source, int16 dest, int16 left,
                  int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp);
      void drawSprite(int16 source, Video::SurfaceDesc * dest, int16 left,
                  int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp);
      void drawString(char *str, int16 x, int16 y, int16 color1, int16 color2,
            int16 transp, Video::SurfaceDesc *dest, Video::FontDesc *font);
      void printTextCentered(int16 arg_0, int16 left, int16 top, int16 right,
                  int16 bottom, char *str, int16 fontIndex, int16 color);

      virtual void initBigSprite(int16 index, int16 width, int16 height, int16 flags) = 0;
      virtual void printText(void) = 0;
      virtual void spriteOperation(int16 operation) = 0;

      Draw(GobEngine *vm);
      virtual ~Draw() {};

protected:
      GobEngine *_vm;
};

class Draw_v1 : public Draw {
public:
      virtual void initBigSprite(int16 index, int16 width, int16 height, int16 flags);
      virtual void printText(void);
      virtual void spriteOperation(int16 operation);

      Draw_v1(GobEngine *vm);
      virtual ~Draw_v1() {};
};

class Draw_v2 : public Draw_v1 {
public:
      virtual void initBigSprite(int16 index, int16 width, int16 height, int16 flags);
      virtual void printText(void);
      virtual void spriteOperation(int16 operation);

      Draw_v2(GobEngine *vm);
      virtual ~Draw_v2() {};
};

// Draw operations

#define DRAW_BLITSURF   0
#define DRAW_PUTPIXEL   1
#define DRAW_FILLRECT   2
#define DRAW_DRAWLINE   3
#define DRAW_INVALIDATE 4
#define DRAW_LOADSPRITE 5
#define DRAW_PRINTTEXT  6
#define DRAW_DRAWBAR 7
#define DRAW_CLEARRECT  8
#define DRAW_FILLRECTABS 9
#define DRAW_DRAWLETTER 10

}                       // End of namespace Gob

#endif      /* __DRAW_H */

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