perf/unaligned-clip.c

   1 /*
   2  * Copyright © 2006 Jeff Muizelaar <jeff@infidigm.net>
   3  * Copyright © 2006 Red Hat, Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person
   6  * obtaining a copy of this software and associated documentation
   7  * files (the "Software"), to deal in the Software without
   8  * restriction, including without limitation the rights to use, copy,
   9  * modify, merge, publish, distribute, sublicense, and/or sell copies
  10  * of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be
  14  * included in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  20  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  21  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors: Jeff Muizelaar <jeff@infidigm.net>
  26  *          Carl Worth <cworth@cworth.org>
  27  */
  28
  29 #include "cairo-perf.h"
  30
  31 static cairo_perf_ticks_t
  32 do_unaligned_clip (cairo_t *cr, int width, int height)
  33 {
  34     cairo_save (cr);
  35
  36     cairo_perf_timer_start ();
  37
  38     /* First a triangular clip that obviously isn't along device-pixel
  39      * boundaries. */
  40     cairo_move_to (cr, 50, 50);
  41     cairo_line_to (cr, 50, 90);
  42     cairo_line_to (cr, 90, 90);
  43     cairo_close_path (cr);
  44     cairo_clip (cr);
  45
  46     /* Then a rectangular clip that would be but for the non-integer
  47      * scaling. */
  48     cairo_scale (cr, 1.1, 1.1);
  49     cairo_rectangle (cr, 55, 55, 35, 35);
  50     cairo_clip (cr);
  51
  52     cairo_perf_timer_stop ();
  53
  54     cairo_restore (cr);
  55
  56     return cairo_perf_timer_elapsed ();
  57 }
  58
  59 void
  60 unaligned_clip (cairo_perf_t *perf, cairo_t *cr, int width, int height)
  61 {
  62     if (! cairo_perf_can_run (perf, "unaligned-clip"))
  63         return;
  64
  65     cairo_perf_run (perf, "unaligned-clip", do_unaligned_clip);
  66 }