diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2008-10-07 20:19:10 +0100 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2008-10-07 20:23:12 +0100 |
commit | 308485a3fc70bc4455a01990443c1f954b8a66f8 (patch) | |
tree | e204c2583a09f1d0a36605603255743582f5ebc8 /test/clipped-surface.c | |
parent | 28a3b546b91290f3377777adedcf7ab71e599188 (diff) | |
download | cairo-308485a3fc70bc4455a01990443c1f954b8a66f8.tar.gz |
[test] Add a test for a reported regression by Michael Natterer.
mitch reported on irc that expose events in the gimp were suffering from
artifacts which he tracked down to a bug with clipping and source
surfaces. This is the cairo test case for that regression.
Diffstat (limited to 'test/clipped-surface.c')
-rw-r--r-- | test/clipped-surface.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/test/clipped-surface.c b/test/clipped-surface.c new file mode 100644 index 000000000..0fa69a132 --- /dev/null +++ b/test/clipped-surface.c @@ -0,0 +1,70 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson <chris@chris-wilson.co.uk> + */ + +/* + * Michael Natterer (mitch) reported a bad regression with post-1.8 trunk + * with artifacts drawn whilst repainting exposed areas. + */ + +#include "cairo-test.h" + +static const char png_filename[] = "romedalen.png"; +static cairo_test_draw_function_t draw; + +static const cairo_test_t test = { + "clipped-surface", + "Tests application of a clip to a source surface", + 40, 40, + draw +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + + image = cairo_test_create_surface_from_png (ctx, png_filename); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_rectangle (cr, 20, 20, 10, 10); + cairo_clip (cr); + + cairo_set_source_surface (cr, image, 10, 10); + cairo_surface_destroy (image); + + cairo_rectangle (cr, 10, 10, 20, 20); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + return cairo_test (&test); +} |