test/paint-repeat.c

   1 /*
   2  * Copyright © 2005 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-test.h"
  27
  28 static cairo_test_draw_function_t draw;
  29
  30 cairo_test_t test = {
  31     "paint-repeat",
  32     "Test calls to cairo_paint with a repeating source surface pattern",
  33     8, 8,
  34     draw
  35 };
  36
  37 static cairo_test_status_t
  38 draw (cairo_t *cr, int width, int height)
  39 {
  40     cairo_surface_t *surface;
  41     static uint32_t data[16] = {
  42         0xffffffff, 0xffffffff,         0xffff0000, 0xffff0000,
  43         0xffffffff, 0xffffffff,         0xffff0000, 0xffff0000,
  44
  45         0xff00ff00, 0xff00ff00,         0xff0000ff, 0xff0000ff,
  46         0xff00ff00, 0xff00ff00,         0xff0000ff, 0xff0000ff
  47     };
  48
  49     surface = cairo_image_surface_create_for_data ((unsigned char *) data,
  50                                                    CAIRO_FORMAT_RGB24, 4, 4, 16);
  51
  52     /* We use a non-zero offset larger than the source surface size to
  53      * stress cairo out a bit more. */
  54     cairo_set_source_surface (cr, surface, 10, 10);
  55     cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
  56     cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT);
  57     cairo_paint (cr);
  58
  59     cairo_surface_destroy (surface);
  60
  61     return CAIRO_TEST_SUCCESS;
  62 }
  63
  64 int
  65 main (void)
  66 {
  67     return cairo_test (&test);
  68 }