cairo/perf/rounded-rectangles.c

   1 /*
   2  * Copyright © 2005 Owen Taylor
   3  * Copyright © 2007 Dan Amelang
   4  * Copyright © 2007 Chris Wilson
   5  *
   6  * Permission to use, copy, modify, distribute, and sell this software
   7  * and its documentation for any purpose is hereby granted without
   8  * fee, provided that the above copyright notice appear in all copies
   9  * and that both that copyright notice and this permission notice
  10  * appear in supporting documentation, and that the name of
  11  * the authors not be used in advertising or publicity pertaining to
  12  * distribution of the software without specific, written prior
  13  * permission. The authors make no representations about the
  14  * suitability of this software for any purpose.  It is provided "as
  15  * is" without express or implied warranty.
  16  *
  17  * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
  18  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  19  * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL,
  20  * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  21  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  22  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
  23  * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  24  *
  25  * Authors: Chris Wilson <chris@chris-wilson.co.uk>
  26  */
  27
  28 /* This perf case is derived from the bug report
  29  *   Gradient on 'rounded rectangle' MUCH slower than normal rectangle
  30  *   https://bugs.freedesktop.org/show_bug.cgi?id=4263.
  31  */
  32
  33 #include "cairo-perf.h"
  34
  35 #define RECTANGLE_COUNT (1000)
  36
  37 #if 0
  38 #define MODE cairo_perf_run
  39 #else
  40 #define MODE cairo_perf_cover_sources_and_operators
  41 #endif
  42
  43 static struct
  44 {
  45     double x;
  46     double y;
  47     double width;
  48     double height;
  49 } rects[RECTANGLE_COUNT];
  50
  51 static void
  52 rounded_rectangle (cairo_t *cr,
  53                    double x, double y, double w, double h,
  54                    double radius)
  55 {
  56     cairo_move_to (cr, x+radius, y);
  57     cairo_arc (cr, x+w-radius, y+radius,   radius, M_PI + M_PI / 2, M_PI * 2        );
  58     cairo_arc (cr, x+w-radius, y+h-radius, radius, 0,               M_PI / 2        );
  59     cairo_arc (cr, x+radius,   y+h-radius, radius, M_PI/2,          M_PI            );
  60     cairo_arc (cr, x+radius,   y+radius,   radius, M_PI,            270 * M_PI / 180);
  61 }
  62
  63 static cairo_perf_ticks_t
  64 do_rectangle (cairo_t *cr, int width, int height)
  65 {
  66     cairo_perf_timer_start ();
  67
  68     rounded_rectangle (cr, 0, 0, width, height, 3.0);
  69     cairo_fill (cr);
  70
  71     cairo_perf_timer_stop ();
  72
  73     return cairo_perf_timer_elapsed ();
  74 }
  75
  76 static cairo_perf_ticks_t
  77 do_rectangles (cairo_t *cr, int width, int height)
  78 {
  79     int i;
  80
  81     cairo_perf_timer_start ();
  82
  83     for (i = 0; i < RECTANGLE_COUNT; i++) {
  84         rounded_rectangle (cr,
  85                            rects[i].x, rects[i].y,
  86                            rects[i].width, rects[i].height,
  87                            3.0);
  88         cairo_fill (cr);
  89     }
  90
  91     cairo_perf_timer_stop ();
  92
  93     return cairo_perf_timer_elapsed ();
  94 }
  95
  96 void
  97 rounded_rectangles (cairo_perf_t *perf, cairo_t *cr, int width, int height)
  98 {
  99     int i;
 100
 101     srand (8478232);
 102     for (i = 0; i < RECTANGLE_COUNT; i++) {
 103         rects[i].x = rand () % width;
 104         rects[i].y = rand () % height;
 105         rects[i].width  = (rand () % (width / 10)) + 1;
 106         rects[i].height = (rand () % (height / 10)) + 1;
 107     }
 108
 109     MODE (perf, "one-rounded-rectangle", do_rectangle);
 110     MODE (perf, "rounded-rectangles", do_rectangles);
 111 }