/*
 * 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: Kristian Høgsberg <krh@redhat.com>
 */

#include <math.h>
#include "cairo-test.h"
#include <stdio.h>

#define WIDTH 256
#define HEIGHT 256
#define PAD 0

const char	png_filename[]	= "alpha-green.png";

#define N_OPERATORS (1 + CAIRO_OPERATOR_SATURATE - CAIRO_OPERATOR_CLEAR)

#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
#define IMAGE_WIDTH (N_OPERATORS * (WIDTH + PAD) + PAD)
#define IMAGE_HEIGHT ((HEIGHT + PAD) + PAD)

static cairo_test_t test = {
    "precision-check",
    "Compositing with different operators",
    IMAGE_WIDTH, IMAGE_HEIGHT
};

static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
    int x, y;
    cairo_operator_t op;
    cairo_pattern_t *pattern;
    cairo_surface_t *image = cairo_image_surface_create_from_png (png_filename);

    for (op = CAIRO_OPERATOR_CLEAR; op <= CAIRO_OPERATOR_SATURATE; op++) {
        cairo_t *cr2;
	x = op * (WIDTH + PAD) + PAD;
	y = PAD;

	cairo_save (cr);

        cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
	cairo_rectangle (cr, x, y, WIDTH, HEIGHT);
	cairo_fill (cr);

	pattern = cairo_pattern_create_for_surface (image);
        cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
	cairo_set_source (cr, pattern);

	cairo_set_operator (cr, op);
	cairo_rectangle (cr, x, y, WIDTH, HEIGHT);
	cairo_fill (cr);

	cairo_pattern_destroy (pattern);

	if (cairo_status (cr))
	    cairo_test_log ("%d HERE!\n", op);
	    
	cairo_restore (cr);
    }

    if (cairo_status (cr) != CAIRO_STATUS_SUCCESS)
	cairo_test_log ("%d .HERE!\n", op);

    return CAIRO_TEST_SUCCESS;
}

int
main (void)
{
    return cairo_test (&test, draw);
}