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-perf.h"
29 static uint32_t state;
32 uniform_random (double minval, double maxval)
34 static uint32_t const poly = 0x9a795537U;
37 state = 2*state < state ? (2*state ^ poly) : 2*state;
38 return minval + state * (maxval - minval) / 4294967296.0;
42 do_curve_stroke (cairo_t *cr, int width, int height, int loops)
45 cairo_set_line_width (cr, 2.);
46 cairo_perf_timer_start ();
47 cairo_perf_set_thread_aware (cr, FALSE);
51 cairo_perf_set_thread_aware (cr, TRUE);
52 double x1 = uniform_random (0, width);
53 double x2 = uniform_random (0, width);
54 double x3 = uniform_random (0, width);
55 double y1 = uniform_random (0, height);
56 double y2 = uniform_random (0, height);
57 double y3 = uniform_random (0, height);
58 cairo_move_to (cr, uniform_random (0, width), uniform_random (0, height));
59 cairo_curve_to (cr, x1, y1, x2, y2, x3, y3);
63 cairo_perf_timer_stop ();
65 return cairo_perf_timer_elapsed ();
69 do_curve_fill (cairo_t *cr, int width, int height, int loops)
72 cairo_perf_timer_start ();
73 cairo_perf_set_thread_aware (cr, FALSE);
77 cairo_perf_set_thread_aware (cr, TRUE);
78 double x0 = uniform_random (0, width);
79 double x1 = uniform_random (0, width);
80 double x2 = uniform_random (0, width);
81 double x3 = uniform_random (0, width);
82 double xm = uniform_random (0, width);
83 double xn = uniform_random (0, width);
84 double y0 = uniform_random (0, height);
85 double y1 = uniform_random (0, height);
86 double y2 = uniform_random (0, height);
87 double y3 = uniform_random (0, height);
88 double ym = uniform_random (0, height);
89 double yn = uniform_random (0, height);
91 cairo_move_to (cr, xm, ym);
92 cairo_curve_to (cr, x1, y1, x2, y2, xn, yn);
93 cairo_curve_to (cr, x3, y3, x0, y0, xm, ym);
94 cairo_close_path (cr);
99 cairo_perf_timer_stop ();
101 return cairo_perf_timer_elapsed ();
105 curve_enabled (cairo_perf_t *perf)
107 return cairo_perf_can_run (perf, "curve", NULL);
111 curve (cairo_perf_t *perf, cairo_t *cr, int width, int height)
113 cairo_set_source_rgb (cr, 1., 1., 1.);
115 cairo_perf_run (perf, "curve-stroked", do_curve_stroke, NULL);
116 cairo_perf_run (perf, "curve-filled", do_curve_fill, NULL);