cairo/test/clipped-surface.c

   1 /*
   2  * Copyright 2008 Chris Wilson
   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  * Chris Wilson not be used in advertising or publicity pertaining to
  10  * distribution of the software without specific, written prior
  11  * permission. Chris Wilson 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  * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17  * FITNESS, IN NO EVENT SHALL CHRIS WILSON 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: Chris Wilson <chris@chris-wilson.co.uk>
  24  */
  25
  26 /*
  27  * Michael Natterer (mitch) reported a bad regression with post-1.8 trunk
  28  * with artifacts drawn whilst repainting exposed areas.
  29  */
  30
  31 #include "cairo-test.h"
  32
  33 static const char png_filename[] = "romedalen.png";
  34 static cairo_test_draw_function_t draw;
  35
  36 static const cairo_test_t test = {
  37     "clipped-surface",
  38     "Tests application of a clip to a source surface",
  39     40, 40,
  40     draw
  41 };
  42
  43 static cairo_test_status_t
  44 draw (cairo_t *cr, int width, int height)
  45 {
  46     const cairo_test_context_t *ctx = cairo_test_get_context (cr);
  47     cairo_surface_t *image;
  48
  49     image = cairo_test_create_surface_from_png (ctx, png_filename);
  50
  51     cairo_set_source_rgb (cr, 1, 0, 0);
  52     cairo_paint (cr);
  53
  54     cairo_rectangle (cr, 20, 20, 10, 10);
  55     cairo_clip (cr);
  56
  57     cairo_set_source_surface (cr, image, 10, 10);
  58     cairo_surface_destroy (image);
  59
  60     cairo_rectangle (cr, 10, 10, 20, 20);
  61     cairo_fill (cr);
  62
  63     return CAIRO_TEST_SUCCESS;
  64 }
  65
  66 int
  67 main (void)
  68 {
  69     return cairo_test (&test);
  70 }