diff options
Diffstat (limited to 'perf/micro/spiral.c')
-rw-r--r-- | perf/micro/spiral.c | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/perf/micro/spiral.c b/perf/micro/spiral.c new file mode 100644 index 00000000..046351c0 --- /dev/null +++ b/perf/micro/spiral.c @@ -0,0 +1,349 @@ +/* -*- 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 <assert.h> +#include "cairo-perf.h" + +#define MAX_SEGMENTS 2560 + +typedef enum { + PIXALIGN, /* pixel aligned path */ + NONALIGN /* unaligned path. */ +} align_t; + +typedef enum { + RECTCLOSE, /* keeps the path rectilinear */ + DIAGCLOSE /* forces a diagonal */ +} close_t; + +static cairo_perf_ticks_t +draw_spiral (cairo_t *cr, + cairo_fill_rule_t fill_rule, + align_t align, + close_t close, + int width, int height, int loops) +{ + int i; + int n=0; + double x[MAX_SEGMENTS]; + double y[MAX_SEGMENTS]; + int step = 3; + int side = width < height ? width : height; + + assert(5*(side/step/2+1)+2 < MAX_SEGMENTS); + +#define L(x_,y_) (x[n] = (x_), y[n] = (y_), n++) +#define M(x_,y_) L(x_,y_) +#define v(t) L(x[n-1], y[n-1] + (t)) +#define h(t) L(x[n-1] + (t), y[n-1]) + + switch (align) { + case PIXALIGN: M(0,0); break; + case NONALIGN: M(0.1415926, 0.7182818); break; + } + + while (side >= step && side >= 0) { + v(side); + h(side); + v(-side); + h(-side+step); + v(step); + side -= 2*step; + } + + switch (close) { + case RECTCLOSE: L(x[n-1],y[0]); break; + case DIAGCLOSE: L(x[0],y[0]); break; + } + + assert(n < MAX_SEGMENTS); + + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + 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, x[0], y[0]); + for (i = 1; i < n; 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_perf_ticks_t +draw_spiral_box (cairo_t *cr, + cairo_fill_rule_t fill_rule, + align_t align, + int width, int height, int loops) +{ + const int step = 3; + int side = (width < height ? width : height) - 2; + + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_fill_rule (cr, fill_rule); + cairo_translate (cr, 1, 1); + if (align == NONALIGN) + cairo_translate (cr, 0.1415926, 0.7182818); + + cairo_new_path (cr); + while (side >= step) { + cairo_rectangle (cr, 0, 0, side, side); + cairo_translate (cr, step, step); + side -= 2*step; + } + + cairo_perf_timer_start (); + while (loops--) + cairo_fill_preserve (cr); + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_perf_ticks_t +draw_spiral_stroke (cairo_t *cr, + align_t align, + int width, int height, int loops) +{ + const int step = 3; + int side = width < height ? width : height; + + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_translate (cr, 1, 1); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 4.); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + + cairo_new_path (cr); + switch (align) { + case PIXALIGN: cairo_move_to (cr, 0,0); break; + case NONALIGN: cairo_move_to (cr, 0.1415926, 0.7182818); break; + } + while (side >= step) { + cairo_rel_line_to (cr, 0, side); + side -= step; + if (side <= 0) + break; + + cairo_rel_line_to (cr, side, 0); + side -= step; + if (side <= 0) + break; + + cairo_rel_line_to (cr, 0, -side); + side -= step; + if (side <= 0) + break; + + cairo_rel_line_to (cr, -side, 0); + side -= step; + if (side <= 0) + break; + } + + cairo_perf_timer_start (); + while (loops--) + cairo_stroke_preserve (cr); + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_perf_ticks_t +draw_spiral_eo_pa_re (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_EVEN_ODD, + PIXALIGN, + RECTCLOSE, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_nz_pa_re (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_WINDING, + PIXALIGN, + RECTCLOSE, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_eo_na_re (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_EVEN_ODD, + NONALIGN, + RECTCLOSE, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_nz_na_re (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_WINDING, + NONALIGN, + RECTCLOSE, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_eo_pa_di (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_EVEN_ODD, + PIXALIGN, + DIAGCLOSE, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_nz_pa_di (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_WINDING, + PIXALIGN, + DIAGCLOSE, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_eo_na_di (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_EVEN_ODD, + NONALIGN, + DIAGCLOSE, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_nz_na_di (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_WINDING, + NONALIGN, + DIAGCLOSE, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_nz_pa_box (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_box (cr, + CAIRO_FILL_RULE_WINDING, PIXALIGN, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_nz_na_box (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_box (cr, + CAIRO_FILL_RULE_WINDING, NONALIGN, + width, height, loops); +} + + +static cairo_perf_ticks_t +draw_spiral_eo_pa_box (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_box (cr, + CAIRO_FILL_RULE_EVEN_ODD, PIXALIGN, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_eo_na_box (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_box (cr, + CAIRO_FILL_RULE_EVEN_ODD, NONALIGN, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_stroke_pa (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_stroke (cr, + PIXALIGN, + width, height, loops); +} + +static cairo_perf_ticks_t +draw_spiral_stroke_na (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_stroke (cr, + NONALIGN, + width, height, loops); +} + +void +spiral (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + if (! cairo_perf_can_run (perf, "spiral", NULL)) + return; + + cairo_perf_run (perf, "spiral-box-nonalign-evenodd-fill", draw_spiral_eo_na_box); + cairo_perf_run (perf, "spiral-box-nonalign-nonzero-fill", draw_spiral_nz_na_box); + cairo_perf_run (perf, "spiral-box-pixalign-evenodd-fill", draw_spiral_eo_pa_box); + cairo_perf_run (perf, "spiral-box-pixalign-nonzero-fill", draw_spiral_nz_pa_box); + cairo_perf_run (perf, "spiral-diag-nonalign-evenodd-fill", draw_spiral_eo_na_di); + cairo_perf_run (perf, "spiral-diag-nonalign-nonzero-fill", draw_spiral_nz_na_di); + cairo_perf_run (perf, "spiral-diag-pixalign-evenodd-fill", draw_spiral_eo_pa_di); + cairo_perf_run (perf, "spiral-diag-pixalign-nonzero-fill", draw_spiral_nz_pa_di); + cairo_perf_run (perf, "spiral-rect-nonalign-evenodd-fill", draw_spiral_eo_na_re); + cairo_perf_run (perf, "spiral-rect-nonalign-nonzero-fill", draw_spiral_nz_na_re); + cairo_perf_run (perf, "spiral-rect-pixalign-evenodd-fill", draw_spiral_eo_pa_re); + cairo_perf_run (perf, "spiral-rect-pixalign-nonzero-fill", draw_spiral_nz_pa_re); + cairo_perf_run (perf, "spiral-nonalign-stroke", draw_spiral_stroke_na); + cairo_perf_run (perf, "spiral-pixalign-stroke", draw_spiral_stroke_pa); +} |