From 530ffd0b7d3c39757b20f00716e486b5caf89aff Mon Sep 17 00:00:00 2001 From: sanine Date: Wed, 12 Oct 2022 12:03:23 -0500 Subject: add cairo --- libs/cairo-1.16.0/perf/micro/intersections.c | 160 +++++++++++++++++++++++++++ 1 file changed, 160 insertions(+) create mode 100644 libs/cairo-1.16.0/perf/micro/intersections.c (limited to 'libs/cairo-1.16.0/perf/micro/intersections.c') diff --git a/libs/cairo-1.16.0/perf/micro/intersections.c b/libs/cairo-1.16.0/perf/micro/intersections.c new file mode 100644 index 0000000..57931fa --- /dev/null +++ b/libs/cairo-1.16.0/perf/micro/intersections.c @@ -0,0 +1,160 @@ +/* -*- 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); +} -- cgit v1.2.1