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72481acf0d
Provide a hook for the test to be able to compute the number of ops per second. For instance, the glyphs test uses it to report the number of kiloglyph per second Cairo is able to render.
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/*
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* Copyright © 2006 Red Hat, Inc.
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*
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Author: Carl D. Worth <cworth@cworth.org>
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*/
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#include "cairo-perf.h"
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/* This test case is designed to illustrate a performance bug that
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* exists in cairo in which using cairo_stroke is much slower than
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* cairo_fill to draw an identical figure, (and in particular a figure
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* that is much more natural to draw with cairo_stroke). The figure is
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* a 100x100 square outline 1-pixel wide, nicely pixel aligned.
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*
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* The performance bug should affect any path whose resulting contour
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* consists only of pixel-aligned horizontal and vertical elements.
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*
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* Initial testing on on machine shows stroke as 5x slower than fill
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* for the xlib backend and 16x slower for the image backend.
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*/
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static cairo_perf_ticks_t
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box_outline_stroke (cairo_t *cr, int width, int height, int loops)
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{
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cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
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cairo_paint (cr);
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cairo_rectangle (cr,
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1.5, 1.5,
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width - 3, height - 3);
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cairo_set_line_width (cr, 1.0);
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cairo_set_source_rgb (cr, 1, 0, 0); /* red */
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cairo_perf_timer_start ();
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while (loops--)
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cairo_stroke_preserve (cr);
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cairo_perf_timer_stop ();
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cairo_new_path (cr);
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return cairo_perf_timer_elapsed ();
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}
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static cairo_perf_ticks_t
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box_outline_fill (cairo_t *cr, int width, int height, int loops)
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{
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cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
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cairo_paint (cr);
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cairo_rectangle (cr,
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1.0, 1.0,
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width - 2, height - 2);
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cairo_rectangle (cr,
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2.0, 2.0,
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width - 4, height - 4);
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cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
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cairo_set_source_rgb (cr, 0, 1, 0); /* green */
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cairo_perf_timer_start ();
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while (loops--)
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cairo_fill_preserve (cr);
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cairo_perf_timer_stop ();
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cairo_new_path (cr);
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return cairo_perf_timer_elapsed ();
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}
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void
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box_outline (cairo_perf_t *perf, cairo_t *cr, int width, int height)
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{
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if (! cairo_perf_can_run (perf, "box-outline", NULL))
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return;
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cairo_perf_run (perf, "box-outline-stroke", box_outline_stroke, NULL);
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cairo_perf_run (perf, "box-outline-fill", box_outline_fill, NULL);
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}
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