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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.
145 lines
4.4 KiB
C
145 lines
4.4 KiB
C
/*
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* Copyright © 2006 Red Hat, Inc.
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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 in
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* drawing very long lines, where most of the line is out of bounds of
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* the destination surface, (but some portion of the line is
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* visibile). These results are in the "long-lines-uncropped" report.
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*
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* For comparison, this test also renders the visible portions of the
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* same lines, (this is the "long-lines-cropped" report).
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*/
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typedef enum {
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LONG_LINES_CROPPED = 0x1,
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LONG_LINES_ONCE = 0x2,
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} long_lines_crop_t;
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#define NUM_LINES 20
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#define LONG_FACTOR 50.0
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static cairo_perf_ticks_t
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do_long_lines (cairo_t *cr, int width, int height, int loops, long_lines_crop_t crop)
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{
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int i;
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double x, y, dx, dy, min_x, min_y, max_x, max_y;
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double outer_width, outer_height;
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cairo_save (cr);
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cairo_translate (cr, width / 2, height / 2);
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if (crop & LONG_LINES_CROPPED) {
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outer_width = width;
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outer_height = height;
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cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); /* green */
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} else {
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outer_width = LONG_FACTOR * width;
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outer_height = LONG_FACTOR * height;
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cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */
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}
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min_x = x = - outer_width / 2.0;
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min_y = y = - outer_height / 2.0;
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max_x = outer_width / 2.0;
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max_y = outer_height / 2.0;
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dx = outer_width / NUM_LINES;
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dy = outer_height / NUM_LINES;
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cairo_perf_timer_start ();
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while (loops--) {
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for (i = 0; i <= NUM_LINES; i++) {
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, x, min_y);
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if ((crop & LONG_LINES_ONCE) == 0)
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cairo_stroke (cr);
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, x, max_y);
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if ((crop & LONG_LINES_ONCE) == 0)
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cairo_stroke (cr);
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, min_x, y);
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if ((crop & LONG_LINES_ONCE) == 0)
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cairo_stroke (cr);
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, max_x, y);
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if ((crop & LONG_LINES_ONCE) == 0)
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cairo_stroke (cr);
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x += dx;
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y += dy;
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}
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if (crop & LONG_LINES_ONCE)
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cairo_stroke (cr);
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}
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cairo_perf_timer_stop ();
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cairo_restore (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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long_lines_uncropped (cairo_t *cr, int width, int height, int loops)
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{
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return do_long_lines (cr, width, height, loops, 0);
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}
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static cairo_perf_ticks_t
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long_lines_uncropped_once (cairo_t *cr, int width, int height, int loops)
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{
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return do_long_lines (cr, width, height, loops, LONG_LINES_ONCE);
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}
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static cairo_perf_ticks_t
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long_lines_cropped (cairo_t *cr, int width, int height, int loops)
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{
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return do_long_lines (cr, width, height, loops, LONG_LINES_CROPPED);
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}
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static cairo_perf_ticks_t
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long_lines_cropped_once (cairo_t *cr, int width, int height, int loops)
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{
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return do_long_lines (cr, width, height, loops, LONG_LINES_CROPPED | LONG_LINES_ONCE);
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}
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void
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long_lines (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, "long-lines", NULL))
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return;
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cairo_perf_run (perf, "long-lines-uncropped", long_lines_uncropped, NULL);
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cairo_perf_run (perf, "long-lines-uncropped-once", long_lines_uncropped_once, NULL);
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cairo_perf_run (perf, "long-lines-cropped", long_lines_cropped, NULL);
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cairo_perf_run (perf, "long-lines-cropped-once", long_lines_cropped_once, NULL);
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}
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