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/* Copyright (C) 1995, 1996 Aladdin Enterprises. All rights reserved.
This file is part of GNU Ghostscript.
GNU Ghostscript is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY. No author or distributor accepts responsibility to
anyone for the consequences of using it or for whether it serves any
particular purpose or works at all, unless he says so in writing. Refer to
the GNU General Public License for full details.
Everyone is granted permission to copy, modify and redistribute GNU
Ghostscript, but only under the conditions described in the GNU General
Public License. A copy of this license is supposed to have been given to
you along with GNU Ghostscript so you can know your rights and
responsibilities. It should be in a file named COPYING. Among other
things, the copyright notice and this notice must be preserved on all
copies.
Aladdin Enterprises is not affiliated with the Free Software Foundation or
the GNU Project. GNU Ghostscript, as distributed by Aladdin Enterprises,
does not depend on any other GNU software.
*/
/* gxhttile.h */
/* Halftone tile definition */
/* Requires gxbitmap.h */
#ifndef gxhttile_INCLUDED
# define gxhttile_INCLUDED
/*
* A halftone tile is just an ordinary bitmap tile, plus a couple of other
* items associated with managing its existence in a tile cache.
* (See gzht.h for details.) We define this in its own file so that
* clients of gx_device_color can access it.
*/
#ifndef gx_ht_tile_DEFINED
# define gx_ht_tile_DEFINED
typedef struct gx_ht_tile_s gx_ht_tile;
#endif
struct gx_ht_tile_s {
gx_strip_bitmap tiles; /* the currently rendered tile */
int level; /* the cached gray level, i.e. */
/* the number of spots whitened, */
/* or -1 if the cache is empty */
uint index; /* the index of the tile within */
/* the cache (for GC) */
};
#endif /* gxhttile_INCLUDED */
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