diff options
Diffstat (limited to 'perf/micro/intersections.c')
| -rw-r--r-- | perf/micro/intersections.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/perf/micro/intersections.c b/perf/micro/intersections.c deleted file mode 100644 index 57931faf8..000000000 --- a/perf/micro/intersections.c +++ /dev/null @@ -1,160 +0,0 @@ -/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ -/* cairo - a vector graphics library with display and print output - * - * Copyright (c) 2008 M Joonas Pihlaja - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following - * conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ -#include "cairo-perf.h" - -#define NUM_SEGMENTS 256 - -static unsigned state; -static double -uniform_random (double minval, double maxval) -{ - static unsigned const poly = 0x9a795537U; - unsigned n = 32; - while (n-->0) - state = 2*state < state ? (2*state ^ poly) : 2*state; - return minval + state * (maxval - minval) / 4294967296.0; -} - -static cairo_time_t -draw_random (cairo_t *cr, cairo_fill_rule_t fill_rule, - int width, int height, int loops) -{ - double x[NUM_SEGMENTS]; - double y[NUM_SEGMENTS]; - int i; - - cairo_save (cr); - cairo_set_source_rgb (cr, 0, 0, 0); - cairo_paint (cr); - - for (i = 0; i < NUM_SEGMENTS; i++) { - x[i] = uniform_random (0, width); - y[i] = uniform_random (0, height); - } - - state = 0x12345678; - cairo_translate (cr, 1, 1); - cairo_set_fill_rule (cr, fill_rule); - cairo_set_source_rgb (cr, 1, 0, 0); - - cairo_new_path (cr); - cairo_move_to (cr, 0, 0); - for (i = 0; i < NUM_SEGMENTS; i++) - cairo_line_to (cr, x[i], y[i]); - cairo_close_path (cr); - - cairo_perf_timer_start (); - while (loops--) - cairo_fill_preserve (cr); - cairo_perf_timer_stop (); - - cairo_restore (cr); - - return cairo_perf_timer_elapsed (); -} - -static cairo_time_t -draw_random_curve (cairo_t *cr, cairo_fill_rule_t fill_rule, - int width, int height, int loops) -{ - double x[3*NUM_SEGMENTS]; - double y[3*NUM_SEGMENTS]; - int i; - - cairo_save (cr); - cairo_set_source_rgb (cr, 0, 0, 0); - cairo_paint (cr); - - for (i = 0; i < 3*NUM_SEGMENTS; i++) { - x[i] = uniform_random (0, width); - y[i] = uniform_random (0, height); - } - - state = 0x12345678; - cairo_translate (cr, 1, 1); - cairo_set_fill_rule (cr, fill_rule); - cairo_set_source_rgb (cr, 1, 0, 0); - - cairo_new_path (cr); - cairo_move_to (cr, 0, 0); - for (i = 0; i < NUM_SEGMENTS; i++) { - cairo_curve_to (cr, - x[3*i+0], y[3*i+0], - x[3*i+1], y[3*i+1], - x[3*i+2], y[3*i+2]); - } - cairo_close_path (cr); - - cairo_perf_timer_start (); - while (loops--) - cairo_fill_preserve (cr); - cairo_perf_timer_stop (); - - cairo_restore (cr); - - return cairo_perf_timer_elapsed (); -} - -static cairo_time_t -random_eo (cairo_t *cr, int width, int height, int loops) -{ - return draw_random (cr, CAIRO_FILL_RULE_EVEN_ODD, width, height, loops); -} - -static cairo_time_t -random_nz (cairo_t *cr, int width, int height, int loops) -{ - return draw_random (cr, CAIRO_FILL_RULE_WINDING, width, height, loops); -} - -static cairo_time_t -random_curve_eo (cairo_t *cr, int width, int height, int loops) -{ - return draw_random_curve (cr, CAIRO_FILL_RULE_EVEN_ODD, width, height, loops); -} - -static cairo_time_t -random_curve_nz (cairo_t *cr, int width, int height, int loops) -{ - return draw_random_curve (cr, CAIRO_FILL_RULE_WINDING, width, height, loops); -} - -cairo_bool_t -intersections_enabled (cairo_perf_t *perf) -{ - return cairo_perf_can_run (perf, "intersections", NULL); -} - -void -intersections (cairo_perf_t *perf, cairo_t *cr, int width, int height) -{ - cairo_perf_run (perf, "intersections-nz-fill", random_nz, NULL); - cairo_perf_run (perf, "intersections-eo-fill", random_eo, NULL); - - cairo_perf_run (perf, "intersections-nz-curve-fill", random_curve_nz, NULL); - cairo_perf_run (perf, "intersections-eo-curve-fill", random_curve_eo, NULL); -} |