diff options
Diffstat (limited to 'libs/cairo-1.16.0/perf/micro/many-fills.c')
| -rw-r--r-- | libs/cairo-1.16.0/perf/micro/many-fills.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/libs/cairo-1.16.0/perf/micro/many-fills.c b/libs/cairo-1.16.0/perf/micro/many-fills.c deleted file mode 100644 index 9d3fd64..0000000 --- a/libs/cairo-1.16.0/perf/micro/many-fills.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * Copyright © 2011 Intel Corporation - * - * 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. - * - * Author: Chris Wilson <chris@chris-wilson.co.uk> - */ - - -/* This is a variant on many strokes where we precompute - * a simplified stroke-to-path. - * When we have a real stroke-to-path, it would useful to compare the cost - * of stroking vs filling the "identical" paths. - */ - -#include "cairo-perf.h" - -static uint32_t state; - -static double -uniform_random (double minval, double maxval) -{ - static uint32_t const poly = 0x9a795537U; - uint32_t 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 -do_many_fills_ha (cairo_t *cr, int width, int height, int loops) -{ - int count; - - state = 0xc0ffee; - for (count = 0; count < 1000; count++) { - double y = floor (uniform_random (0, height)); - double x = floor (uniform_random (0, width)); - cairo_rectangle (cr, x, y, ceil (uniform_random (0, width)) - x, 1); - } - - cairo_perf_timer_start (); - - while (loops--) - cairo_fill_preserve (cr); - - cairo_perf_timer_stop (); - - cairo_new_path (cr); - - return cairo_perf_timer_elapsed (); -} - -static cairo_time_t -do_many_fills_h (cairo_t *cr, int width, int height, int loops) -{ - int count; - - state = 0xc0ffee; - for (count = 0; count < 1000; count++) { - double y = uniform_random (0, height); - double x = uniform_random (0, width); - cairo_rectangle (cr, x, y, uniform_random (0, width) - x, 1); - } - - cairo_perf_timer_start (); - - while (loops--) - cairo_fill_preserve (cr); - - cairo_perf_timer_stop (); - - cairo_new_path (cr); - - return cairo_perf_timer_elapsed (); -} - -static cairo_time_t -do_many_fills_va (cairo_t *cr, int width, int height, int loops) -{ - int count; - - state = 0xc0ffee; - for (count = 0; count < 1000; count++) { - double x = floor (uniform_random (0, width)); - double y = floor (uniform_random (0, height)); - cairo_rectangle (cr, x, y, 1, ceil (uniform_random (0, height) - y)); - } - - cairo_perf_timer_start (); - - while (loops--) - cairo_fill_preserve (cr); - - cairo_perf_timer_stop (); - - cairo_new_path (cr); - - return cairo_perf_timer_elapsed (); -} - -static cairo_time_t -do_many_fills_v (cairo_t *cr, int width, int height, int loops) -{ - int count; - - state = 0xc0ffee; - for (count = 0; count < 1000; count++) { - double x = uniform_random (0, width); - double y = uniform_random (0, height); - cairo_rectangle (cr, x, y, 1, uniform_random (0, height) - y); - } - - cairo_perf_timer_start (); - - while (loops--) - cairo_fill_preserve (cr); - - cairo_perf_timer_stop (); - - cairo_new_path (cr); - - return cairo_perf_timer_elapsed (); -} - -static cairo_time_t -do_many_fills (cairo_t *cr, int width, int height, int loops) -{ - int count; - - /* lots and lots of overlapping stroke-like fills */ - state = 0xc0ffee; - for (count = 0; count < 1000; count++) { - cairo_save (cr); - cairo_translate (cr, - uniform_random (0, width), - uniform_random (0, height)); - cairo_rotate (cr, uniform_random (-M_PI,M_PI)); - cairo_rectangle (cr, 0, 0, uniform_random (0, width), 1); - cairo_restore (cr); - } - - cairo_perf_timer_start (); - - while (loops--) - cairo_fill_preserve (cr); - - cairo_perf_timer_stop (); - - cairo_new_path (cr); - - return cairo_perf_timer_elapsed (); -} - -cairo_bool_t -many_fills_enabled (cairo_perf_t *perf) -{ - return cairo_perf_can_run (perf, "many-fills", NULL); -} - -void -many_fills (cairo_perf_t *perf, cairo_t *cr, int width, int height) -{ - cairo_perf_run (perf, "many-fills-halign", do_many_fills_ha, NULL); - cairo_perf_run (perf, "many-fills-valign", do_many_fills_va, NULL); - cairo_perf_run (perf, "many-fills-horizontal", do_many_fills_h, NULL); - cairo_perf_run (perf, "many-fills-vertical", do_many_fills_v, NULL); - cairo_perf_run (perf, "many-fills-random", do_many_fills, NULL); -} |