/*
 * Copyright © 2005 Red Hat, Inc.
 * Copyright © 2006 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"

static uint32_t data[16] = {
    0xffffffff, 0xffffffff,		0xffff0000, 0xffff0000,
    0xffffffff, 0xffffffff,		0xffff0000, 0xffff0000,

    0xff00ff00, 0xff00ff00,		0xff0000ff, 0xff0000ff,
    0xff00ff00, 0xff00ff00,		0xff0000ff, 0xff0000ff
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
    cairo_surface_t *surface;

    surface = cairo_image_surface_create_for_data ((unsigned char *) data,
						   CAIRO_FORMAT_RGB24, 4, 4, 16);

    cairo_test_paint_checkered (cr);

    cairo_scale (cr, 4, 4);

    cairo_set_source_surface (cr, surface, 2 , 2);
    cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
    cairo_paint_with_alpha (cr, 0.5);

    cairo_surface_finish (surface); /* data will go out of scope */
    cairo_surface_destroy (surface);

    return CAIRO_TEST_SUCCESS;
}

static cairo_test_status_t
draw_solid_clip (cairo_t *cr, int width, int height)
{
    cairo_test_paint_checkered (cr);

    cairo_rectangle (cr, 2.5, 2.5, 27, 27);
    cairo_clip (cr);

    cairo_set_source_rgb (cr, 1., 0.,0.);
    cairo_paint_with_alpha (cr, 0.5);

    return CAIRO_TEST_SUCCESS;
}

static cairo_test_status_t
draw_clip (cairo_t *cr, int width, int height)
{
    cairo_surface_t *surface;

    surface = cairo_image_surface_create_for_data ((unsigned char *) data,
						   CAIRO_FORMAT_RGB24, 4, 4, 16);

    cairo_test_paint_checkered (cr);

    cairo_rectangle (cr, 10.5, 10.5, 11, 11);
    cairo_clip (cr);

    cairo_scale (cr, 4, 4);

    cairo_set_source_surface (cr, surface, 2 , 2);
    cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
    cairo_paint_with_alpha (cr, 0.5);

    cairo_surface_finish (surface); /* data will go out of scope */
    cairo_surface_destroy (surface);

    return CAIRO_TEST_SUCCESS;
}

static cairo_test_status_t
draw_clip_mask (cairo_t *cr, int width, int height)
{
    cairo_surface_t *surface;

    surface = cairo_image_surface_create_for_data ((unsigned char *) data,
						   CAIRO_FORMAT_RGB24, 4, 4, 16);

    cairo_test_paint_checkered (cr);

    cairo_move_to (cr, 16, 5);
    cairo_line_to (cr, 5, 16);
    cairo_line_to (cr, 16, 27);
    cairo_line_to (cr, 27, 16);
    cairo_clip (cr);

    cairo_scale (cr, 4, 4);

    cairo_set_source_surface (cr, surface, 2 , 2);
    cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
    cairo_paint_with_alpha (cr, 0.5);

    cairo_surface_finish (surface); /* data will go out of scope */
    cairo_surface_destroy (surface);

    return CAIRO_TEST_SUCCESS;
}

CAIRO_TEST (paint_with_alpha,
	    "Simple test of cairo_paint_with_alpha",
	    "paint, alpha", /* keywords */
	    NULL, /* requirements */
	    32, 32,
	    NULL, draw)
CAIRO_TEST (paint_with_alpha_solid_clip,
	    "Simple test of cairo_paint_with_alpha+unaligned clip",
	    "paint, alpha, clip", /* keywords */
	    NULL, /* requirements */
	    32, 32,
	    NULL, draw_solid_clip)
CAIRO_TEST (paint_with_alpha_clip,
	    "Simple test of cairo_paint_with_alpha+unaligned clip",
	    "paint, alpha, clip", /* keywords */
	    NULL, /* requirements */
	    32, 32,
	    NULL, draw_clip)
CAIRO_TEST (paint_with_alpha_clip_mask,
	    "Simple test of cairo_paint_with_alpha+unaligned clip",
	    "paint, alpha, clip", /* keywords */
	    NULL, /* requirements */
	    32, 32,
	    NULL, draw_clip_mask)