/*
 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */


/**
 * @test
 * @bug 8146042
 * @run main RenderRectTest
 */

import java.awt.*;

import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.awt.image.VolatileImage;


public class RenderRectTest {

    public static void main(String[] args) throws Exception {
        GraphicsConfiguration gc =
                GraphicsEnvironment.getLocalGraphicsEnvironment().
                        getDefaultScreenDevice().getDefaultConfiguration();

        AffineTransform transform = gc.getDefaultTransform();
        if(transform.getScaleX() == 1 && transform.getScaleY() == 1) {
            VolatileImage vi = gc.createCompatibleVolatileImage(12, 12);
            Graphics2D g = vi.createGraphics();
            g.setColor(Color.black);
            g.drawRect(1, 1, 9, 9);
            g.dispose();
            BufferedImage capture = vi.getSnapshot();

            int w = capture.getWidth();
            int h = capture.getHeight();
            for (int y = 0; y < h >> 1; y++) {
                for (int x = 0; x < w >> 1; x++) {
                    if (x > 0 && y > 0 && (x == 1 || y == 1)) {
                        if ((capture.getRGB(x, y)
                                | capture.getRGB(x, h - 1 - y)
                                | capture.getRGB(w - 1 - x, y)
                                | capture.getRGB(w - 1 - x, h - 1 - y)) !=
                                Color.black.getRGB()) {
                            throw new RuntimeException("Wrong rectangle");
                        }
                    } else {
                        if ((capture.getRGB(x, y)
                                & capture.getRGB(x, h - 1 - y)
                                & capture.getRGB(w - 1 - x, y)
                                & capture.getRGB(w - 1 - x, h - 1 - y)) !=
                                Color.white.getRGB()) {
                            throw new RuntimeException("Wrong rectangle");
                        }
                    }
                }
            }
        } else {
            VolatileImage vi = gc.createCompatibleVolatileImage(12, 12);
            Graphics2D g = vi.createGraphics();
            g.setColor(Color.black);
            g.drawRect(1, 1, 9, 9);
            g.dispose();

            BufferedImage i1 = new BufferedImage((int)(12 * transform.getScaleX()),
                    (int)(12 * transform.getScaleY()), BufferedImage.TYPE_4BYTE_ABGR_PRE);
            g = i1.createGraphics();
            g.drawImage(vi, 0, 0, i1.getWidth(), i1.getHeight(), null);
            g.dispose();


            BufferedImage i2 = gc.createCompatibleImage(i1.getWidth(), i1.getHeight());
            g = i2.createGraphics();
            g.setBackground(Color.white);
            g.clearRect(0, 0, i2.getWidth(), i2.getHeight());
            g.setTransform(transform);
            g.setColor(Color.black);
            g.drawRect(1, 1, 9, 9);
            g.dispose();

            int w = i1.getWidth();
            int h = i1.getHeight();
            for (int y = 0; y < h; y++) {
                for (int x = 0; x < w ; x++) {
                    if (i1.getRGB(x, y) != i2.getRGB(x, y)) {
                        throw new RuntimeException("Rectangles are different");
                    }
                }
            }
        }
    }
}