/* * 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> */ #include "cairo-test.h" static cairo_surface_t * create_source (cairo_surface_t *target, int width, int height) { cairo_surface_t *similar; cairo_t *cr; similar = cairo_surface_create_similar (target, CAIRO_CONTENT_ALPHA, width, height); cr = cairo_create (similar); cairo_surface_destroy (similar); cairo_set_source_rgba (cr, 1, 0, 0, .5); cairo_paint (cr); similar = cairo_surface_reference (cairo_get_target (cr)); cairo_destroy (cr); return similar; } static cairo_test_status_t draw (cairo_t *cr, int width, int height) { cairo_surface_t *source; source = create_source (cairo_get_target (cr), width, height); cairo_set_source_surface (cr, source, 0, 0); cairo_surface_destroy (source); cairo_paint (cr); return CAIRO_TEST_SUCCESS; } CAIRO_TEST (alpha_similar, "Tests creation of similar alpha surfaces" "\nApplication of a pure-alpha similar source is inconsistent across backends.", "alpha, similar", /* keywords */ NULL, /* requirements */ 10, 10, NULL, draw)