From 530ffd0b7d3c39757b20f00716e486b5caf89aff Mon Sep 17 00:00:00 2001 From: sanine Date: Wed, 12 Oct 2022 12:03:23 -0500 Subject: add cairo --- libs/cairo-1.16.0/test/clip-contexts.c | 75 ++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 libs/cairo-1.16.0/test/clip-contexts.c (limited to 'libs/cairo-1.16.0/test/clip-contexts.c') diff --git a/libs/cairo-1.16.0/test/clip-contexts.c b/libs/cairo-1.16.0/test/clip-contexts.c new file mode 100644 index 0000000..39d2004 --- /dev/null +++ b/libs/cairo-1.16.0/test/clip-contexts.c @@ -0,0 +1,75 @@ +/* + * Copyright © 2010 Intel Corporation + * + * 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 + * Intel Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION 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 + */ + +#include "cairo-test.h" + +/* + * Jeff Muizelaar found a bug on Quartz with cairo-surface-clipper, which was + * the topmost clip path from two different contexts and finding them equally + * incorrectly concluding that the operation was a no-op. + */ + +#define SIZE 10 +#define CLIP_SIZE 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_t *cr2; + + /* opaque background */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* first create an empty, non-overlappiny clip */ + cr2 = cairo_create (cairo_get_target (cr)); + cairo_rectangle (cr2, 0, 0, SIZE/2-2, SIZE/2-2); + cairo_clip (cr2); + + cairo_rectangle (cr2, SIZE/2+2, SIZE/2+2, SIZE/2-2, SIZE/2-2); + cairo_clip (cr2); + + /* and apply the clip onto the surface, empty nothing should be painted */ + cairo_set_source_rgba (cr2, 1, 0, 0, .5); + cairo_paint (cr2); + + /* switch back to the original, and set only the last clip */ + cairo_rectangle (cr, SIZE/2+2, SIZE/2+2, SIZE/2-2, SIZE/2-2); + cairo_clip (cr); + + cairo_set_source_rgba (cr, 0, 0, 1, .5); + cairo_paint (cr); + + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_contexts, + "Test clipping with 2 separate contexts", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) -- cgit v1.2.1