/* 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 GEGL; if not, see <http://www.gnu.org/licenses/>.

 *

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

 */

#ifndef __GEGL_TILE_STORAGE_H__

#define __GEGL_TILE_STORAGE_H__

#include "gegl-tile-handler-chain.h"

#include "gegl-tile-handler-cache.h"

/***

 * GeglTileStorage provide the command API to GeglBuffer, and setup a chain of GeglTileHandler to

 * treat and store tiles.

 */

#define GEGL_TYPE_TILE_STORAGE            (gegl_tile_storage_get_type ())

#define GEGL_TILE_STORAGE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEGL_TYPE_TILE_STORAGE, GeglTileStorage))

#define GEGL_TILE_STORAGE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  GEGL_TYPE_TILE_STORAGE, GeglTileStorageClass))

#define GEGL_IS_TILE_STORAGE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEGL_TYPE_TILE_STORAGE))

#define GEGL_IS_TILE_STORAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  GEGL_TYPE_TILE_STORAGE))

#define GEGL_TILE_STORAGE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  GEGL_TYPE_TILE_STORAGE, GeglTileStorageClass))

struct _GeglTileStorage

{

  GeglTileHandlerChain parent_instance;

  GeglTileHandlerCache *cache;

  GMutex        *mutex;

  const Babl    *format;

  gint           tile_width;

  gint           tile_height;

  gint           tile_size;

  gint           px_size;

  gint           width;

  gint           height;

  gchar         *path;

  gint           seen_zoom; /* the maximum zoom level we've seen tiles for */

  guint          idle_swapper;

  GeglTile      *hot_tile; /* cached tile for speeding up gegl_buffer_get_pixel

                              and gegl_buffer_set_pixel (1x1 sized gets/sets)*/

};

struct _GeglTileStorageClass

{

  GeglTileHandlerChainClass parent_class;

};

GType gegl_tile_storage_get_type (void) G_GNUC_CONST;

GeglTileStorage *

gegl_tile_storage_new (GeglTileBackend *backend);

#endif