From nobody Mon Sep 17 00:00:00 2001 From: Dan Amelang Date: Tue Oct 31 23:47:35 2006 -0800 Subject: [PATCH] Add new perf test "pattern_create_radial" This test is really just for hammering the double to fixed-point conversion (in _cairo_fixed_from_double) that happens as doubles from API calls gets translated into internal cairo fixed-point numbers. Because it's not generally useful, I don't recommend that it become part of the main cairo performance test. But hey, it might come in handy for someone else. --- perf/Makefile.am | 1 perf/cairo-perf.c | 1 perf/cairo-perf.h | 1 perf/pattern_create_radial.c | 98 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 101 insertions(+), 0 deletions(-) create mode 100644 perf/pattern_create_radial.c 977383b86c68d0523c899efcba3cf8d36e94d2a7 diff --git a/perf/Makefile.am b/perf/Makefile.am index 419a998..e1cfdc7 100644 --- a/perf/Makefile.am +++ b/perf/Makefile.am @@ -21,6 +21,7 @@ cairo_perf_SOURCES = \ stroke.c \ subimage_copy.c \ tessellate.c \ + pattern_create_radial.c \ text.c if CAIRO_HAS_WIN32_SURFACE diff --git a/perf/cairo-perf.c b/perf/cairo-perf.c index d9734c4..0707433 100644 --- a/perf/cairo-perf.c +++ b/perf/cairo-perf.c @@ -256,5 +256,6 @@ cairo_perf_case_t perf_cases[] = { { text, 64, 256}, { tessellate, 100, 100}, { subimage_copy, 16, 512}, + { pattern_create_radial, 16, 16}, { NULL } }; diff --git a/perf/cairo-perf.h b/perf/cairo-perf.h index 560ba64..faacff9 100644 --- a/perf/cairo-perf.h +++ b/perf/cairo-perf.h @@ -88,5 +88,6 @@ CAIRO_PERF_DECL (stroke); CAIRO_PERF_DECL (subimage_copy); CAIRO_PERF_DECL (tessellate); CAIRO_PERF_DECL (text); +CAIRO_PERF_DECL (pattern_create_radial); #endif diff --git a/perf/pattern_create_radial.c b/perf/pattern_create_radial.c new file mode 100644 index 0000000..d793b7d --- /dev/null +++ b/perf/pattern_create_radial.c @@ -0,0 +1,98 @@ +/* + * Copyright © 2006 Dan Amelang + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Dan Amelang + * + * This test was originally created to test _cairo_fixed_from_double. + * cairo_pattern_create_radial was selected as the entry point into + * cairo as it makes several calls to _cairo_fixed_from_double and + * presents a somewhat realistic use-case (although the RADIALS_COUNT + * isn't very realistic). + */ +#include +#include "cairo-perf.h" + +#define RADIALS_COUNT (100000) + +static struct +{ + double cx0; + double cy0; + double radius0; + double cx1; + double cy1; + double radius1; +} radials[RADIALS_COUNT]; + +static double +generate_double_in_range (double min, double max) +{ + double d; + + d = rand () / (double) RAND_MAX; + d *= max - min; + d += min; + + return d; +} + +static cairo_perf_ticks_t +do_pattern_create_radial (cairo_t *cr, int width, int height) +{ + int i; + cairo_pattern_t *pattern; + + cairo_perf_timer_start (); + + for (i = 0; i < RADIALS_COUNT; i++) + { + pattern = cairo_pattern_create_radial (radials[i].cx0, radials[i].cy0, + radials[i].radius0, + radials[i].cx1, radials[i].cy1, + radials[i].radius1); + cairo_pattern_destroy (pattern); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +void +pattern_create_radial (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + int i; + + srand (time (0)); + for (i = 0; i < RADIALS_COUNT; i++) + { + radials[i].cx0 = generate_double_in_range (-50000.0, 50000.0); + radials[i].cy0 = generate_double_in_range (-50000.0, 50000.0); + radials[i].radius0 = generate_double_in_range (0.0, 1000.0); + radials[i].cx1 = generate_double_in_range (-50000.0, 50000.0); + radials[i].cy1 = generate_double_in_range (-50000.0, 50000.0); + radials[i].radius1 = generate_double_in_range (0.0, 1000.0); + } + + cairo_perf_run (perf, "pattern_create_radial", + do_pattern_create_radial); +} -- 1.2.6