cairo/test/stroke-image.c

   1 /*
   2  * Copyright © 2006 Mozilla Corporation
   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  * Mozilla Corporation not be used in advertising or publicity pertaining to
  10  * distribution of the software without specific, written prior
  11  * permission. Mozilla Corporation 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  * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17  * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION 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: Vladimir Vukicevic <vladimir@pobox.com>
  24  */
  25
  26 #include "cairo-test.h"
  27
  28 static cairo_test_draw_function_t draw;
  29
  30 #define PAD 10
  31 #define SIZE 100
  32 #define IMAGE_SIZE (SIZE-PAD*2)
  33 #define LINE_WIDTH 10
  34
  35 static const cairo_test_t test = {
  36     "stroke-image",
  37     "Test stroking with an image source, with a non-identity CTM",
  38     SIZE, SIZE,
  39     draw
  40 };
  41
  42 static cairo_test_status_t
  43 draw (cairo_t *cr, int width, int height)
  44 {
  45     cairo_surface_t *image;
  46     cairo_t *cr_image;
  47
  48     cairo_set_source_rgb (cr, 0, 0, 0);
  49     cairo_paint (cr);
  50
  51     image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, IMAGE_SIZE, IMAGE_SIZE);
  52     cr_image = cairo_create (image);
  53     cairo_surface_destroy (image);
  54
  55     /* Create the image */
  56     cairo_set_source_rgb (cr_image, 0, 0, 0);
  57     cairo_paint (cr_image);
  58     cairo_set_source_rgb (cr_image, 0, 1, 0);
  59     cairo_set_line_width (cr_image, LINE_WIDTH);
  60     cairo_arc (cr_image, IMAGE_SIZE/2, IMAGE_SIZE/2, IMAGE_SIZE/2 - LINE_WIDTH/2, 0, M_PI * 2.0);
  61     cairo_stroke (cr_image);
  62
  63     /* Now stroke with it */
  64     cairo_translate (cr, PAD, PAD);
  65
  66     cairo_set_source_surface (cr, cairo_get_target (cr_image), 0, 0);
  67     cairo_destroy (cr_image);
  68
  69     cairo_new_path (cr);
  70     cairo_set_line_width (cr, LINE_WIDTH);
  71     cairo_arc (cr, IMAGE_SIZE/2, IMAGE_SIZE/2, IMAGE_SIZE/2 - LINE_WIDTH/2, 0, M_PI * 2.0);
  72     cairo_stroke (cr);
  73
  74     return CAIRO_TEST_SUCCESS;
  75 }
  76
  77 int
  78 main (void)
  79 {
  80     return cairo_test (&test);
  81 }