gimp/app/tile_manager.h

121 lines
3.8 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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.
*/
#ifndef __TILE_MANAGER_H__
#define __TILE_MANAGER_H__
#include "tile.h"
typedef struct _TileManager TileManager;
typedef void (*TileValidateProc) (TileManager *tm,
Tile *tile);
/* Creates a new tile manager with the specified
* width for the toplevel. The toplevel sizes is
* used to compute the number of levels and there
* size. Each level is 1/2 the width and height of
* the level above it.
* The toplevel is level 0. The smallest level in the
* hierarchy is "nlevels - 1". That level will be smaller
* than TILE_WIDTH x TILE_HEIGHT
*/
TileManager* tile_manager_new (int toplevel_width,
int toplevel_height,
int bpp);
/* Destroy a tile manager and all the tiles it contains.
*/
void tile_manager_destroy (TileManager *tm);
/* Set the validate procedure for the tile manager.
* The validate procedure is called when an invalid tile
* is referenced. If the procedure is NULL, then the tile
* is set to valid and its memory is allocated, but
* not initialized.
*/
void tile_manager_set_validate_proc (TileManager *tm,
TileValidateProc proc);
/* Get a specified tile from a tile manager.
*/
Tile* tile_manager_get_tile (TileManager *tm,
int xpixel,
int ypixel,
int wantread,
int wantwrite);
/* Get a specified tile from a tile manager.
*/
Tile* tile_manager_get (TileManager *tm,
int tile_num,
int wantread,
int wantwrite);
/* Request that (if possible) the tile at x,y be swapped
* in. This is only a hint to improve performance; no guarantees.
* The tile may be swapped in or otherwise made more accessible
* if it is convenient...
*/
void tile_manager_get_async (TileManager *tm,
int xpixel,
int ypixel);
void tile_manager_map_tile (TileManager *tm,
int xpixel,
int ypixel,
Tile *srctile);
void tile_manager_map (TileManager *tm,
int time_num,
Tile *srctile);
/* Validate a tiles memory.
*/
void tile_manager_validate (TileManager *tm,
Tile *tile);
void tile_invalidate (Tile **tile_ptr, TileManager *tm, int tile_num);
void tile_invalidate_tile (Tile **tile_ptr, TileManager *tm,
int xpixel, int ypixel);
/* Given a toplevel tile, this procedure will invalidate
* (set the dirty bit) for this toplevel tile.
*/
void tile_manager_invalidate_tiles (TileManager *tm,
Tile *toplevel_tile);
void tile_manager_set_user_data (TileManager *tm,
void *user_data);
void *tile_manager_get_user_data (TileManager *tm);
int tile_manager_level_width (TileManager *tm);
int tile_manager_level_height (TileManager *tm);
int tile_manager_level_bpp (TileManager *tm);
void tile_manager_get_tile_coordinates (TileManager *tm, Tile *tile,
int *x, int *y);
void tile_manager_map_over_tile (TileManager *tm, Tile *tile, Tile *srctile);
#endif /* __TILE_MANAGER_H__ */