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author | Carl Worth <cworth@cworth.org> | 2005-05-12 11:02:35 +0000 |
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committer | Carl Worth <cworth@cworth.org> | 2005-05-12 11:02:35 +0000 |
commit | 27d9c575a77e0b6dc995e348c4877bc0092a4571 (patch) | |
tree | 1deb8a85368151e5a96206b23d8f16ddd5c4f7c3 /test/paint-with-alpha.c | |
parent | 52f41b7bf08a5e3a599ef6ebc7273f057ada4fa6 (diff) | |
download | cairo-27d9c575a77e0b6dc995e348c4877bc0092a4571.tar.gz |
Add new test for bug in cairo_paint_with_alpha not transforming the source.
Use a transformed copy of the source just like we do in all the other calls to cairo_surface_composite. Fixes the bug tested by test/paint-with-alpha.
Diffstat (limited to 'test/paint-with-alpha.c')
-rw-r--r-- | test/paint-with-alpha.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/test/paint-with-alpha.c b/test/paint-with-alpha.c new file mode 100644 index 000000000..f4734afdb --- /dev/null +++ b/test/paint-with-alpha.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * 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 + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org> + */ + +#include "cairo-test.h" + +cairo_test_t test = { + "paint-with-alpha", + "Simple test of cairo_paint_with_alpha", + 12, 12 +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + unsigned long data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff + }; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_ARGB32, 4, 4, 16); + + cairo_scale (cr, 2, 2); + + cairo_set_source_surface (cr, surface, 1 , 1); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + return cairo_test (&test, draw); +} |