2 * Copyright © 2011 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Author: Chris Wilson <chris@chris-wilson.co.uk>
27 #include "cairo-test.h"
33 static void hatching (cairo_t *cr)
37 cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
40 for (i = 0; i < WIDTH; i += STEP) {
41 cairo_rectangle (cr, i-1, -2, 2, HEIGHT+4);
42 cairo_rectangle (cr, -2, i-1, WIDTH+4, 2);
46 static void background (cairo_t *cr)
48 cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
49 cairo_set_source_rgb (cr, 1,1,1);
53 static void clip_to_quadrant (cairo_t *cr)
55 cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
59 static void draw_hatching (cairo_t *cr, void (*func) (cairo_t *))
62 clip_to_quadrant (cr);
67 cairo_translate (cr, WIDTH, 0);
70 clip_to_quadrant (cr);
71 cairo_translate (cr, 0.25, 0.25);
76 cairo_translate (cr, WIDTH, 0);
79 clip_to_quadrant (cr);
80 cairo_translate (cr, WIDTH/2, HEIGHT/2);
81 cairo_rotate (cr, M_PI/4);
82 cairo_translate (cr, -WIDTH/2, -HEIGHT/2);
87 cairo_translate (cr, WIDTH, 0);
90 static void do_clip (cairo_t *cr)
96 static void do_clip_alpha (cairo_t *cr)
99 cairo_paint_with_alpha (cr, .5);
102 static void hatchings (cairo_t *cr, void (*func) (cairo_t *))
105 cairo_set_source_rgb(cr, 1, 0, 0);
106 cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT);
107 draw_hatching (cr, func);
108 cairo_set_source_rgb(cr, 0, 0, 1);
109 cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
110 draw_hatching (cr, func);
111 } cairo_restore (cr);
114 static cairo_test_status_t
115 draw (cairo_t *cr, int width, int height)
120 /* aligned, misaligned, diagonal; mono repeat
123 * x clip; paint-alpha
124 * repeated, for over/source
127 cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
129 hatchings (cr, cairo_fill);
130 cairo_translate (cr, 0, HEIGHT);
131 hatchings (cr, do_clip);
132 cairo_translate (cr, 0, HEIGHT);
133 hatchings (cr, do_clip_alpha);
134 cairo_translate (cr, 0, HEIGHT);
136 cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
138 hatchings (cr, cairo_fill);
139 cairo_translate (cr, 0, HEIGHT);
140 hatchings (cr, do_clip);
141 cairo_translate (cr, 0, HEIGHT);
142 hatchings (cr, do_clip_alpha);
143 cairo_translate (cr, 0, HEIGHT);
145 return CAIRO_TEST_SUCCESS;
148 CAIRO_TEST (hatchings,
149 "Test drawing through various aligned/unaliged clips",
150 "clip, alpha", /* keywords */
151 "target=raster", /* requirements */