/* This file is part of GEGL.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 3 of the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, see <http://www.gnu.org/licenses/>.

 *

 * Copyright 2006 Øyvind Kolås <pippin@gimp.org>

 */

#ifndef __GEGL_TILE_HANDLER_CACHE_H__

#define __GEGL_TILE_HANDLER_CACHE_H__

#include "gegl-tile-handler.h"

/***

 * GeglTileHandlerCache is a GeglTileHandler that cache recently used tiles in memory.

 */

#define GEGL_TYPE_TILE_HANDLER_CACHE            (gegl_tile_handler_cache_get_type ())

#define GEGL_TILE_HANDLER_CACHE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEGL_TYPE_TILE_HANDLER_CACHE, GeglTileHandlerCache))

#define GEGL_TILE_HANDLER_CACHE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  GEGL_TYPE_TILE_HANDLER_CACHE, GeglTileHandlerCacheClass))

#define GEGL_IS_TILE_HANDLER_CACHE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEGL_TYPE_TILE_HANDLER_CACHE))

#define GEGL_IS_TILE_HANDLER_CACHE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  GEGL_TYPE_TILE_HANDLER_CACHE))

#define GEGL_TILE_HANDLER_CACHE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  GEGL_TYPE_TILE_HANDLER_CACHE, GeglTileHandlerCacheClass))

typedef struct _GeglTileHandlerCache      GeglTileHandlerCache;

typedef struct _GeglTileHandlerCacheClass GeglTileHandlerCacheClass;

struct _GeglTileHandlerCache

{

  GeglTileHandler  parent_instance;

  GeglTileStorage *tile_storage;

  GSList          *free_list;

  int              count; /* number of items held by cache */

};

struct _GeglTileHandlerCacheClass

{

  GeglTileHandlerClass parent_class;

};

GType                  gegl_tile_handler_cache_get_type (void) G_GNUC_CONST;

GeglTileHandlerCache * gegl_tile_handler_cache_new      (void);

void                   gegl_tile_handler_cache_insert   (GeglTileHandlerCache *cache,

                                                         GeglTile             *tile,

                                                         gint                  x,

                                                         gint                  y,

                                                         gint                  z);

#endif