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sprite.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2006 The ScummVM project
 *
 * Copyright (C) 1999-2001 Sarien Team
 *
 * 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/agi/sprite.h $
 * $Id: sprite.h 22783 2006-05-30 19:48:47Z wjpalenstijn $
 *
 */

#ifndef AGI_SPRITE_H
#define AGI_SPRITE_H

#include "common/list.h"

namespace Agi {


struct sprite;
typedef Common::List<sprite*> SpriteList;

class SpritesMan {
private:
      uint8 *sprite_pool;
      uint8 *pool_top;

      /*
       * Sprite management functions
       */

      SpriteList spr_upd;
      SpriteList spr_nonupd;

      void *pool_alloc(int size);
      void pool_release(void *s);
      void blit_pixel(uint8 *p, uint8 *end, uint8 col, int spr, int width, int *hidden);
      int blit_hires_cel(int x, int y, int spr, view_cel *c);
      int blit_cel(int x, int y, int spr, view_cel *c);
      void objs_savearea(sprite *s);
      void objs_restorearea(sprite *s);
      
      FORCEINLINE int prio_to_y(int p);
      sprite *new_sprite(vt_entry *v);
      void spr_addlist(SpriteList& l, vt_entry *v);
      void build_list(SpriteList& l, bool (*test) (vt_entry *));
      void build_upd_blitlist();
      void build_nonupd_blitlist();
      void free_list(SpriteList& l);
      void commit_sprites(SpriteList& l);
      void erase_sprites(SpriteList& l);
      void blit_sprites(SpriteList& l);   
      
public:
      SpritesMan();
      ~SpritesMan();

      int init_sprites(void);
      void deinit_sprites(void);
      void erase_upd_sprites(void);
      void erase_nonupd_sprites(void);
      void erase_both(void);
      void blit_upd_sprites(void);
      void blit_nonupd_sprites(void);
      void blit_both(void);
      void commit_upd_sprites(void);
      void commit_nonupd_sprites(void);
      void commit_both(void);
      void add_to_pic(int, int, int, int, int, int, int);
      void show_obj(int);
      void commit_block(int, int, int, int);
};

extern SpritesMan *_sprites;

}                             // End of namespace Agi

#endif                        /* AGI_SPRITE_H */

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