perf/text.c

   1 /*
   2  * Copyright © 2006 Red Hat, Inc.
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software
   5  * and its documentation for any purpose is hereby granted without
   6  * fee, provided that the above copyright notice appear in all copies
   7  * and that both that copyright notice and this permission notice
   8  * appear in supporting documentation, and that the name of
   9  * Red Hat, Inc. not be used in advertising or publicity pertaining to
  10  * distribution of the software without specific, written prior
  11  * permission. Red Hat, Inc. makes no representations about the
  12  * suitability of this software for any purpose.  It is provided "as
  13  * is" without express or implied warranty.
  14  *
  15  * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17  * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
  18  * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  19  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  20  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
  21  * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22  *
  23  * Author: Carl D. Worth <cworth@cworth.org>
  24  */
  25
  26 #include "cairo-perf.h"
  27
  28 static cairo_perf_ticks_t
  29 do_text (cairo_t *cr, int width, int height)
  30 {
  31     const char text[] = "the jay, pig, fox, zebra and my wolves quack";
  32     int len = strlen (text);
  33     double x, y;
  34     int i = 0, j = 0;
  35
  36     cairo_perf_timer_start ();
  37
  38     cairo_set_font_size (cr, 9);
  39     do {
  40         cairo_move_to (cr, 0, j++ * 10);
  41         cairo_show_text (cr, text + i);
  42         cairo_get_current_point (cr, &x, &y);
  43         while (x < width && cairo_status (cr) == CAIRO_STATUS_SUCCESS) {
  44             cairo_show_text (cr, text);
  45             cairo_get_current_point (cr, &x, &y);
  46         }
  47         if (++i >= len)
  48             i = 0;
  49     } while (y < height && cairo_status (cr) == CAIRO_STATUS_SUCCESS);
  50
  51     cairo_perf_timer_stop ();
  52
  53     return cairo_perf_timer_elapsed ();
  54 }
  55
  56 void
  57 text (cairo_perf_t *perf, cairo_t *cr, int width, int height)
  58 {
  59     if (! cairo_perf_can_run (perf, "text"))
  60         return;
  61
  62     cairo_perf_cover_sources_and_operators (perf, "text", do_text);
  63 }