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_surface_t *create_source_surface (int size);
30 /* We use a relatively large source to exercise bug:
31 * Bug 7360 painting huge surfaces fails
32 * [https://bugs.freedesktop.org/show_bug.cgi?id=7360]
33 * but still keep the resultant image small for reasonably quick checking.
35 #define SOURCE_SIZE 2000
36 #define INTER_SIZE 512
40 draw_pattern (cairo_surface_t **surface_inout, int surface_size)
43 int mid = surface_size/2;
45 cr = cairo_create (*surface_inout);
46 cairo_surface_destroy (*surface_inout);
48 cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
49 cairo_set_source_rgba (cr, 0, 0, 0, 0);
52 cairo_rectangle (cr, 0, 0, surface_size, surface_size);
53 cairo_rectangle (cr, mid - SIZE/4, mid + SIZE/4, SIZE/2, -SIZE/2);
56 /* outside squares -> opaque */
57 cairo_set_source_rgb (cr, 1, 1, 1);
60 surface_size / 2, surface_size / 2);
62 cairo_set_source_rgb (cr, 1, 0, 0);
65 surface_size / 2, surface_size / 2);
67 cairo_set_source_rgb (cr, 0, 1, 0);
70 surface_size / 2, surface_size / 2);
72 cairo_set_source_rgb (cr, 0, 0, 1);
74 surface_size / 2, surface_size / 2,
75 surface_size / 2, surface_size / 2);
78 cairo_reset_clip (cr);
79 cairo_rectangle (cr, mid - SIZE/4, mid - SIZE/4, SIZE/2, SIZE/2);
82 /* inside squares -> translucent */
83 cairo_set_source_rgba (cr, 0, 0, 1, .5);
86 surface_size / 2, surface_size / 2);
88 cairo_set_source_rgba (cr, 0, 1, 0, .5);
91 surface_size / 2, surface_size / 2);
93 cairo_set_source_rgba (cr, 1, 0, 0, .5);
96 surface_size / 2, surface_size / 2);
98 cairo_set_source_rgba (cr, 1, 1, 1, .5);
100 surface_size / 2, surface_size / 2,
101 surface_size / 2, surface_size / 2);
105 *surface_inout = cairo_surface_reference (cairo_get_target (cr));
109 static cairo_test_status_t
110 draw (cairo_t *cr, int width, int height)
112 cairo_surface_t *surface;
113 cairo_surface_t *similar;
114 cairo_status_t status;
117 cairo_set_source_rgb (cr, 0, 0, 0);
120 surface = create_source_surface (SOURCE_SIZE);
121 if (surface == NULL) /* can't create the source so skip the test */
122 return CAIRO_TEST_UNTESTED;
124 draw_pattern (&surface, SOURCE_SIZE);
126 /* copy a subregion to a smaller intermediate surface */
127 similar = cairo_surface_create_similar (surface,
128 CAIRO_CONTENT_COLOR_ALPHA,
129 INTER_SIZE, INTER_SIZE);
130 cr2 = cairo_create (similar);
131 cairo_surface_destroy (similar);
132 cairo_set_source_surface (cr2, surface,
133 (INTER_SIZE - SOURCE_SIZE)/2,
134 (INTER_SIZE - SOURCE_SIZE)/2);
137 /* and then paint onto a small surface for checking */
138 cairo_set_source_surface (cr, cairo_get_target (cr2),
139 (width - INTER_SIZE)/2,
140 (height - INTER_SIZE)/2);
142 cairo_rectangle (cr, 16, 16, 64, 64);
143 cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
146 /* destroy the surface last, as this triggers XCloseDisplay */
147 cairo_surface_finish (surface);
148 status = cairo_surface_status (surface);
149 cairo_surface_destroy (surface);
151 return cairo_test_status_from_status (cairo_test_get_context (cr),
155 static cairo_test_status_t
156 preamble (cairo_test_context_t *ctx)
158 cairo_surface_t *surface;
159 cairo_status_t status;
161 surface = create_source_surface (SOURCE_SIZE);
162 if (surface == NULL) /* can't create the source so skip the test */
163 return CAIRO_TEST_UNTESTED;
165 cairo_surface_finish (surface);
166 status = cairo_surface_status (surface);
167 cairo_surface_destroy (surface);
169 return cairo_test_status_from_status (ctx, status);