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[perf] Add a box mode to spiral

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Add a very similar 'spiral' path (really just concentric boxes) that hit
the rectangular optimisations so that we can compare how effective they
are.
This commit is contained in:
Chris Wilson 2009-08-15 10:16:41 +01:00
parent e79a9a87c3
commit 6f8fae21e6
1 changed files with 73 additions and 0 deletions
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73
perf/spiral.c
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@ -106,6 +106,42 @@ draw_spiral (cairo_t *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,
@ -241,6 +277,39 @@ draw_spiral_nz_na_di (cairo_t *cr, int width, int height, int loops)
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)
{
@ -263,6 +332,10 @@ spiral (cairo_perf_t *perf, cairo_t *cr, int width, int height)
if (! cairo_perf_can_run (perf, "spiral"))
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);