/* * 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 <chris@chris-wilson.co.uk> */ #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)