/* * 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 */ #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; uint32_t 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); }