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/* cairo - a vector graphics library with display and print output
*
* Copyright © 2014 Samsung Research America, Silicon Valley
*
* 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.
*
* The Initial Developer of the Original Code is Red Hat, Inc.
*
* Contributor(s):
* Srikanth Chevalam<chevalam.s@samsung.com>
* Suyambulingam Rathinasamy<suyambu.rm@samsung.com>
* Henry Song <henry.song@samsung.com>
*/
#ifndef __CAIRO_CONVEX_FILL_H_
#define __CAIRO_CONVEX_FILL_H_
#include "cairo-box-inline.h"
#include "cairo-list-inline.h"
#include "cairo-stroke-dash-private.h"
#include "cairo-slope-private.h"
#define NUM_SPLINE_CALLS 64
typedef struct cairo_convex_fill_closure {
cairo_status_t (*add_triangle_fan) (void *closure,
const cairo_point_t *points,
int npoints);
double tolerance;
cairo_point_t current_point;
cairo_point_t start_point;
void *closure;
unsigned int pcount;
unsigned int capacity;
cairo_bool_t midp_added;
cairo_point_t embedded_points[NUM_SPLINE_CALLS];
cairo_point_t *convex_points;
} cairo_convex_fill_closure_t;
typedef cairo_warn cairo_status_t
(*cairo_convex_fill_closure_add_triangle_fan) (void *closure,
const cairo_point_t *points,
int npoints);
cairo_status_t
_cairo_convex_fill_spline_to (void *closure,
const cairo_point_t *point,
const cairo_slope_t *tangent);
cairo_status_t
_cairo_convex_fill_curve_to (void *closure,
const cairo_point_t *b,
const cairo_point_t *c,
const cairo_point_t *d);
cairo_status_t
_cairo_convex_fill_move_to (void *closure,
const cairo_point_t *point);
cairo_status_t
_cairo_path_fixed_fill_to_convex (cairo_convex_fill_closure_add_triangle_fan add_triangle_fan,
const cairo_path_fixed_t *path,
cairo_path_fixed_move_to_func_t *move_to,
cairo_path_fixed_line_to_func_t *line_to,
cairo_path_fixed_curve_to_func_t *curve_to,
cairo_path_fixed_close_path_func_t *close_path,
void *closure);
cairo_status_t
_cairo_path_fixed_convex_fill_interpret (const cairo_path_fixed_t *path,
cairo_path_fixed_move_to_func_t *move_to,
cairo_path_fixed_line_to_func_t *line_to,
cairo_path_fixed_curve_to_func_t *curve_to,
cairo_path_fixed_close_path_func_t *close_path,
void *closure);
cairo_status_t
_cairo_convex_fill_line_to (void *closure,
const cairo_point_t *point);
cairo_status_t
_cairo_convex_fill_close_path (void *closure);
cairo_status_t
_add_triangle (void *closure,
const cairo_point_t triangle[3]);
#endif
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