cairo-boxes-private.h

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/* cairo - a vector graphics library with display and print output

 * Copyright © 2009 Intel Corporation

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

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

 * License version 2.1 as published by the Free Software Foundation

 * (the "LGPL") or, at your option, under the terms of the Mozilla

 * Public License Version 1.1 (the "MPL"). If you do not alter this

 * notice, a recipient may use your version of this file under either

 * the MPL or the LGPL.

 * You should have received a copy of the LGPL along with this library

 * in the file COPYING-LGPL-2.1; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA

 * You should have received a copy of the MPL along with this library

 * in the file COPYING-MPL-1.1

 * The contents of this file are subject to the Mozilla Public License

 * Version 1.1 (the "License"); you may not use this file except in

 * compliance with the License. You may obtain a copy of the License at

 * http://www.mozilla.org/MPL/

 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY

 * OF ANY KIND, either express or implied. See the LGPL or the MPL for

 * the specific language governing rights and limitations.

 * The Original Code is the cairo graphics library.

 * Contributor(s):

 *	Chris Wilson <chris@chris-wilson.co.uk>

*/

#ifndef CAIRO_BOXES_H

#define CAIRO_BOXES_H

#include "cairo-types-private.h"

#include "cairo-compiler-private.h"

#include <stdio.h>

#include <stdlib.h>

struct _cairo_boxes_t {

    cairo_status_t status;

    cairo_box_t limit;

    const cairo_box_t *limits;

    int num_limits;

    int num_boxes;

    unsigned int is_pixel_aligned;

    struct _cairo_boxes_chunk {

	struct _cairo_boxes_chunk *next;

	cairo_box_t *base;

	int count;

	int size;

    } chunks, *tail;

    cairo_box_t boxes_embedded[32];

};

cairo_private void

_cairo_boxes_init (cairo_boxes_t *boxes);

cairo_private void

_cairo_boxes_init_with_clip (cairo_boxes_t *boxes,

			     cairo_clip_t *clip);

cairo_private void

_cairo_boxes_init_for_array (cairo_boxes_t *boxes,

			     cairo_box_t *array,

			     int num_boxes);

cairo_private void

_cairo_boxes_init_from_rectangle (cairo_boxes_t *boxes,

				  int x, int y, int w, int h);

cairo_private void

_cairo_boxes_limit (cairo_boxes_t	*boxes,

		    const cairo_box_t	*limits,

		    int			 num_limits);

cairo_private cairo_status_t

_cairo_boxes_add (cairo_boxes_t *boxes,

		  cairo_antialias_t antialias,

		  const cairo_box_t *box);

cairo_private void

_cairo_boxes_extents (const cairo_boxes_t *boxes,

		      cairo_box_t *box);

cairo_private cairo_box_t *

_cairo_boxes_to_array (const cairo_boxes_t *boxes,

		       int *num_boxes);

cairo_private cairo_status_t

_cairo_boxes_intersect (const cairo_boxes_t *a,

			const cairo_boxes_t *b,

			cairo_boxes_t *out);

cairo_private void

_cairo_boxes_clear (cairo_boxes_t *boxes);

cairo_private_no_warn cairo_bool_t

_cairo_boxes_for_each_box (cairo_boxes_t *boxes,

			   cairo_bool_t (*func) (cairo_box_t *box, void *data),

			   void *data);

cairo_private cairo_status_t

_cairo_rasterise_polygon_to_boxes (cairo_polygon_t			*polygon,

				   cairo_fill_rule_t			 fill_rule,

				   cairo_boxes_t *boxes);

cairo_private void

_cairo_boxes_fini (cairo_boxes_t *boxes);

cairo_private void

_cairo_debug_print_boxes (FILE *stream,

			  const cairo_boxes_t *boxes);

#endif /* CAIRO_BOXES_H */