2 * Copyright © 2008 Chris Wilson
4 * Permission to use, copy, modify, distribute, and sell this software
5 * and its documentation for any purpose is hereby granted without
6 * fee, provided that the above copyright notice appear in all copies
7 * and that both that copyright notice and this permission notice
8 * appear in supporting documentation, and that the name of
9 * Chris Wilson not be used in advertising or publicity pertaining to
10 * distribution of the software without specific, written prior
11 * permission. Chris Wilson makes no representations about the
12 * suitability of this software for any purpose. It is provided "as
13 * is" without express or implied warranty.
15 * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
18 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
19 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
20 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
21 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 * Author: Chris Wilson <chris@chris-wilson.co.uk>
26 #include "cairo-test.h"
28 static cairo_test_status_t
29 draw (cairo_t *cr, int width, int height)
32 0x80000000, 0x80000000,
33 0x80000000, 0x80000000,
36 cairo_surface_t *mask, *mask2;
37 cairo_pattern_t *pattern;
39 cairo_text_extents_t extents;
41 mask = cairo_surface_create_similar (cairo_get_group_target (cr),
44 cr2 = cairo_create (mask);
45 cairo_surface_destroy (mask);
48 cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR);
50 } cairo_restore (cr2);
52 pattern = cairo_pattern_create_linear (0, 0, 0, height);
53 cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.0);
54 cairo_pattern_add_color_stop_rgba (pattern, 0.80, 0., 0., 0., 0.0);
55 cairo_pattern_add_color_stop_rgba (pattern, 0.90, 1., 1., 1., 0.25);
56 cairo_pattern_add_color_stop_rgba (pattern, 1.00, 1., 1., 1., 1.0);
57 cairo_set_source (cr2, pattern);
58 cairo_pattern_destroy (pattern);
62 pattern = cairo_pattern_create_linear (0, 0, width, height);
63 cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.);
64 cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.);
65 cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5);
66 cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.);
67 cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.);
68 cairo_set_source (cr2, pattern);
69 cairo_pattern_destroy (pattern);
71 mask2 = cairo_image_surface_create_for_data ((unsigned char *) data,
72 CAIRO_FORMAT_ARGB32, 2, 2, 8);
73 pattern = cairo_pattern_create_for_surface (mask2);
74 cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
75 cairo_mask (cr2, pattern);
76 cairo_pattern_destroy (pattern);
78 cairo_arc (cr2, 0.5 * width, 0.5 * height - 10, 0.2 * height, 0, 2 * M_PI);
81 cairo_arc (cr2, 0.5 * width, 0.5 * height - 10, 0.25 * height, 0, 2 * M_PI);
84 cairo_select_font_face (cr2,
85 CAIRO_TEST_FONT_FAMILY " Sans",
86 CAIRO_FONT_SLANT_NORMAL,
87 CAIRO_FONT_WEIGHT_NORMAL);
88 cairo_set_font_size (cr2, 0.3 * height);
90 cairo_text_extents (cr2, "FG", &extents);
92 floor ((width - extents.width) / 2 + 0.5) - extents.x_bearing,
93 floor (height - extents.height - 0.5) - extents.y_bearing - 5);
94 cairo_show_text (cr2, "FG");
96 cairo_set_source_rgb (cr, 0, 0, 1.0);
99 pattern = cairo_pattern_create_radial (
100 0.5 * width, 0.5 * height, 0,
101 0.5 * width, 0.5 * height, 0.5 *height);
102 cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.);
103 cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 0., 0., 1.);
104 cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 0., 0., .5);
105 cairo_pattern_add_color_stop_rgba (pattern, 1.00, 1., 0., 0., 1.);
106 cairo_set_source (cr, pattern);
107 cairo_pattern_destroy (pattern);
109 cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0);
112 cairo_surface_finish (mask2); /* data will go out of scope */
113 cairo_surface_destroy (mask2);
115 return CAIRO_TEST_SUCCESS;
119 "Test the support of \"soft\" masks",
120 "smask", /* keywords */
121 NULL, /* requirements */