0,0 → 1,141 |
/* cairo - a vector graphics library with display and print output |
* |
* Copyright © 2002 University of Southern California |
* Copyright © 2005 Red Hat, Inc. |
* |
* 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 University of Southern |
* California. |
* |
* Contributor(s): |
* Carl D. Worth <cworth@cworth.org> |
*/ |
|
#ifndef CAIRO_TRAPS_PRIVATE_H |
#define CAIRO_TRAPS_PRIVATE_H |
|
#include "cairo-compiler-private.h" |
#include "cairo-error-private.h" |
#include "cairo-types-private.h" |
|
CAIRO_BEGIN_DECLS |
|
struct _cairo_traps { |
cairo_status_t status; |
|
cairo_box_t bounds; |
const cairo_box_t *limits; |
int num_limits; |
|
unsigned int maybe_region : 1; /* hint: 0 implies that it cannot be */ |
unsigned int has_intersections : 1; |
unsigned int is_rectilinear : 1; |
unsigned int is_rectangular : 1; |
|
int num_traps; |
int traps_size; |
cairo_trapezoid_t *traps; |
cairo_trapezoid_t traps_embedded[16]; |
}; |
|
/* cairo-traps.c */ |
cairo_private void |
_cairo_traps_init (cairo_traps_t *traps); |
|
cairo_private void |
_cairo_traps_init_with_clip (cairo_traps_t *traps, |
const cairo_clip_t *clip); |
|
cairo_private void |
_cairo_traps_limit (cairo_traps_t *traps, |
const cairo_box_t *boxes, |
int num_boxes); |
|
cairo_private cairo_status_t |
_cairo_traps_init_boxes (cairo_traps_t *traps, |
const cairo_boxes_t *boxes); |
|
cairo_private void |
_cairo_traps_clear (cairo_traps_t *traps); |
|
cairo_private void |
_cairo_traps_fini (cairo_traps_t *traps); |
|
#define _cairo_traps_status(T) (T)->status |
|
cairo_private void |
_cairo_traps_translate (cairo_traps_t *traps, int x, int y); |
|
cairo_private void |
_cairo_traps_tessellate_triangle (cairo_traps_t *traps, |
const cairo_point_t t[3]); |
|
cairo_private void |
_cairo_traps_tessellate_convex_quad (cairo_traps_t *traps, |
const cairo_point_t q[4]); |
|
cairo_private cairo_status_t |
_cairo_traps_tessellate_rectangle (cairo_traps_t *traps, |
const cairo_point_t *top_left, |
const cairo_point_t *bottom_right); |
|
cairo_private void |
_cairo_traps_add_trap (cairo_traps_t *traps, |
cairo_fixed_t top, cairo_fixed_t bottom, |
cairo_line_t *left, cairo_line_t *right); |
|
cairo_private int |
_cairo_traps_contain (const cairo_traps_t *traps, |
double x, double y); |
|
cairo_private void |
_cairo_traps_extents (const cairo_traps_t *traps, |
cairo_box_t *extents); |
|
cairo_private cairo_int_status_t |
_cairo_traps_extract_region (cairo_traps_t *traps, |
cairo_antialias_t antialias, |
cairo_region_t **region); |
|
cairo_private cairo_bool_t |
_cairo_traps_to_boxes (cairo_traps_t *traps, |
cairo_antialias_t antialias, |
cairo_boxes_t *boxes); |
|
cairo_private cairo_status_t |
_cairo_traps_path (const cairo_traps_t *traps, |
cairo_path_fixed_t *path); |
|
cairo_private cairo_int_status_t |
_cairo_rasterise_polygon_to_traps (cairo_polygon_t *polygon, |
cairo_fill_rule_t fill_rule, |
cairo_antialias_t antialias, |
cairo_traps_t *traps); |
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CAIRO_END_DECLS |
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#endif /* CAIRO_TRAPS_PRIVATE_H */ |