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-rw-r--r--libs/cairo-1.16.0/perf/micro/spiral.c352
1 files changed, 352 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/perf/micro/spiral.c b/libs/cairo-1.16.0/perf/micro/spiral.c
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+++ b/libs/cairo-1.16.0/perf/micro/spiral.c
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+/* -*- 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"
+#include <assert.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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_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_time_t
+draw_spiral_stroke_na (cairo_t *cr, int width, int height, int loops)
+{
+ return draw_spiral_stroke (cr,
+ NONALIGN,
+ width, height, loops);
+}
+
+cairo_bool_t
+spiral_enabled (cairo_perf_t *perf)
+{
+ return cairo_perf_can_run (perf, "spiral", NULL);
+}
+
+void
+spiral (cairo_perf_t *perf, cairo_t *cr, int width, int height)
+{
+ cairo_perf_run (perf, "spiral-box-nonalign-evenodd-fill", draw_spiral_eo_na_box, NULL);
+ cairo_perf_run (perf, "spiral-box-nonalign-nonzero-fill", draw_spiral_nz_na_box, NULL);
+ cairo_perf_run (perf, "spiral-box-pixalign-evenodd-fill", draw_spiral_eo_pa_box, NULL);
+ cairo_perf_run (perf, "spiral-box-pixalign-nonzero-fill", draw_spiral_nz_pa_box, NULL);
+ cairo_perf_run (perf, "spiral-diag-nonalign-evenodd-fill", draw_spiral_eo_na_di, NULL);
+ cairo_perf_run (perf, "spiral-diag-nonalign-nonzero-fill", draw_spiral_nz_na_di, NULL);
+ cairo_perf_run (perf, "spiral-diag-pixalign-evenodd-fill", draw_spiral_eo_pa_di, NULL);
+ cairo_perf_run (perf, "spiral-diag-pixalign-nonzero-fill", draw_spiral_nz_pa_di, NULL);
+ cairo_perf_run (perf, "spiral-rect-nonalign-evenodd-fill", draw_spiral_eo_na_re, NULL);
+ cairo_perf_run (perf, "spiral-rect-nonalign-nonzero-fill", draw_spiral_nz_na_re, NULL);
+ cairo_perf_run (perf, "spiral-rect-pixalign-evenodd-fill", draw_spiral_eo_pa_re, NULL);
+ cairo_perf_run (perf, "spiral-rect-pixalign-nonzero-fill", draw_spiral_nz_pa_re, NULL);
+ cairo_perf_run (perf, "spiral-nonalign-stroke", draw_spiral_stroke_na, NULL);
+ cairo_perf_run (perf, "spiral-pixalign-stroke", draw_spiral_stroke_pa, NULL);
+}
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