1 /*
2 * Copyright © 2007 Björn Lindqvist
3 *
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:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
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
22 * SOFTWARE.
23 *
24 * Author: Björn Lindqvist <bjourne@gmail.com>
25 */
26
27 #include "cairo-perf.h"
28
29 /* This test case measures how much time cairo takes to render the
30 * equivalent of the following gdk-pixbuf operation:
31 *
32 * gdk_pixbuf_composite_color(dest,
33 * 0, 0, DST_SIZE, DST_SIZE,
34 * 0, 0,
35 * SCALE, SCALE,
36 * gdk.INTERP_NEAREST,
37 * 255,
38 * 0, 0,
39 * 8, 0x33333333, 0x88888888);
40 *
41 * Cairo is (at the time of writing) about 2-3 times as slow as
42 * gdk-pixbuf.
43 */
44 #define PAT_SIZE 16
45 #define SRC_SIZE 64
46
47 static cairo_pattern_t *checkerboard = NULL;
48 static cairo_pattern_t *src_pattern = NULL;
49
50 static cairo_time_t
do_composite_checker(cairo_t * cr,int width,int height,int loops)51 do_composite_checker (cairo_t *cr,
52 int width,
53 int height,
54 int loops)
55 {
56 /* Compute zoom so that the src_pattern covers the whole output image. */
57 double xscale = width / (double) SRC_SIZE;
58 double yscale = height / (double) SRC_SIZE;
59
60 cairo_perf_timer_start ();
61
62 while (loops--) {
63 /* Fill the surface with our background. */
64 cairo_identity_matrix (cr);
65 cairo_set_source (cr, checkerboard);
66 cairo_paint (cr);
67
68 /* Draw the scaled image on top. */
69 cairo_scale (cr, xscale, yscale);
70 cairo_set_source (cr, src_pattern);
71 cairo_paint (cr);
72 }
73
74 cairo_perf_timer_stop ();
75 return cairo_perf_timer_elapsed ();
76 }
77
78 cairo_bool_t
composite_checker_enabled(cairo_perf_t * perf)79 composite_checker_enabled (cairo_perf_t *perf)
80 {
81 return cairo_perf_can_run (perf, "composite-checker", NULL);
82 }
83
84 void
composite_checker(cairo_perf_t * perf,cairo_t * cr,int width,int height)85 composite_checker (cairo_perf_t *perf,
86 cairo_t *cr,
87 int width,
88 int height)
89 {
90 cairo_surface_t *image;
91
92 /* Create the checker pattern. We don't actually need to draw
93 * anything on it since that wouldn't affect performance.
94 */
95 image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
96 PAT_SIZE,
97 PAT_SIZE);
98 checkerboard = cairo_pattern_create_for_surface (image);
99 cairo_pattern_set_filter (checkerboard, CAIRO_FILTER_NEAREST);
100 cairo_pattern_set_extend (checkerboard, CAIRO_EXTEND_REPEAT);
101 cairo_surface_destroy (image);
102
103 /* Create the image source pattern. Again we use the NEAREST
104 * filtering which should be fastest.
105 */
106 image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
107 SRC_SIZE,
108 SRC_SIZE);
109 src_pattern = cairo_pattern_create_for_surface (image);
110 cairo_pattern_set_filter (src_pattern, CAIRO_FILTER_NEAREST);
111 cairo_surface_destroy (image);
112
113 cairo_perf_run (perf, "composite-checker", do_composite_checker, NULL);
114
115 cairo_pattern_destroy (checkerboard);
116 cairo_pattern_destroy (src_pattern);
117 }
118