/* 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 .
*
* Copyright 2006 Øyvind Kolås
*/
#ifndef __GEGL_TILE_HANDLER_EMPTY_H__
#define __GEGL_TILE_HANDLER_EMPTY_H__
#include "gegl-tile-handler.h"
#include "gegl-tile-handler-cache.h"
/***
* GeglTileHandlerEmpty is a GeglTileHandler that create COW tiles sharing data
* with a single empty tile if the tile is not provided by the handlers/sources
* lower down.
*/
G_BEGIN_DECLS
#define GEGL_TYPE_TILE_HANDLER_EMPTY (gegl_tile_handler_empty_get_type ())
#define GEGL_TILE_HANDLER_EMPTY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEGL_TYPE_TILE_HANDLER_EMPTY, GeglTileHandlerEmpty))
#define GEGL_TILE_HANDLER_EMPTY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GEGL_TYPE_TILE_HANDLER_EMPTY, GeglTileHandlerEmptyClass))
#define GEGL_IS_TILE_HANDLER_EMPTY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEGL_TYPE_TILE_HANDLER_EMPTY))
#define GEGL_IS_TILE_HANDLER_EMPTY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GEGL_TYPE_TILE_HANDLER_EMPTY))
#define GEGL_TILE_HANDLER_EMPTY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GEGL_TYPE_TILE_HANDLER_EMPTY, GeglTileHandlerEmptyClass))
typedef struct _GeglTileHandlerEmpty GeglTileHandlerEmpty;
typedef struct _GeglTileHandlerEmptyClass GeglTileHandlerEmptyClass;
struct _GeglTileHandlerEmpty
{
GeglTileHandler parent_instance;
GeglTile *tile;
GeglTileBackend *backend;
GeglTileHandlerCache *cache;
};
struct _GeglTileHandlerEmptyClass
{
GeglTileHandlerClass parent_class;
};
GType gegl_tile_handler_empty_get_type (void) G_GNUC_CONST;
GeglTileHandler *gegl_tile_handler_empty_new (GeglTileBackend *backend,
GeglTileHandlerCache *cache);
G_END_DECLS
#endif