2 * Copyright © 2006 Red Hat, Inc.
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 * Red Hat, Inc. not be used in advertising or publicity pertaining to
10 * distribution of the software without specific, written prior
11 * permission. Red Hat, Inc. 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 * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org>
26 #include "cairo-perf.h"
28 /* This case exposes a performance bug found by Christopher "Monty"
29 * Montgomery in that copying a tiny portion of an image surface to an
30 * X surface causes the entire image surface to be copied to an
31 * intermediate surface.
33 * If the performance bug is fixed, then the time this test takes
34 * should be independent of the source and destination surface sizes.
38 do_subimage_copy (cairo_t *cr, int width, int height, int loops)
40 cairo_rectangle (cr, 2, 2, 4, 4);
41 cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
43 cairo_perf_timer_start ();
44 cairo_perf_set_thread_aware (cr, FALSE);
48 cairo_perf_set_thread_aware (cr, TRUE);
49 cairo_fill_preserve (cr);
52 cairo_perf_timer_stop ();
56 return cairo_perf_timer_elapsed ();
60 subimage_copy_enabled (cairo_perf_t *perf)
62 return cairo_perf_can_run (perf, "subimage-copy", NULL);
66 subimage_copy (cairo_perf_t *perf, cairo_t *cr, int width, int height)
68 cairo_surface_t *image;
71 cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
74 image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
75 cr2 = cairo_create (image);
76 cairo_set_source_rgb (cr2, 1, 0, 0); /* red */
80 cairo_set_source_surface (cr, image, 0, 0);
81 cairo_surface_destroy (image);
83 cairo_perf_run (perf, "subimage-copy", do_subimage_copy, NULL);