/*

 * Copyright (c) 2013, 2016, 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

 * @key headful

 * @bug     8024343 8042098

 * @summary Test verifies that accelerated pipelines

 *          correctly draws primitives in XOR mode.

 * @run main/othervm -Dsun.java2d.xrender=True AcceleratedXORModeTest

 */

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.GraphicsConfiguration;

import java.awt.GraphicsEnvironment;

import java.awt.image.BufferedImage;

import java.awt.image.VolatileImage;

import java.io.File;

import java.io.IOException;

import javax.imageio.ImageIO;

public class AcceleratedXORModeTest {

    public static void main(String argv[]) {

        String fileName = argv.length > 0 ? argv[0] : null;

        new AcceleratedXORModeTest(fileName).test();

    }

    static final Color backColor = Color.red;

    static final Color color1 = Color.green;

    static final Color color2 = Color.yellow;

    static final Color xorColor1 = Color.blue;

    static final Color xorColor2 = Color.white;

    static final int width = 700, height = 300;

    VolatileImage vImg = null;

    String fileName;

    public AcceleratedXORModeTest(String fileName) {

        this.fileName = fileName;

    }

    void draw(Graphics2D g) {

        g.setColor(backColor);

        g.fillRect(0, 0, width, height);

        g.setXORMode(xorColor1);

        drawPattern(g, 100);

        g.setXORMode(xorColor2);

        drawPattern(g, 400);

        g.dispose();

    }

    void test(BufferedImage bi) {

        comparePattern(bi, 150, xorColor1.getRGB());

        comparePattern(bi, 450, xorColor2.getRGB());

    }

    void comparePattern(BufferedImage bi, int startX, int xorColor) {

        int[] expectedColors = {

            backColor.getRGB() ^ color1.getRGB() ^ xorColor,

            backColor.getRGB() ^ color1.getRGB() ^ xorColor ^

                color2.getRGB() ^ xorColor,

            backColor.getRGB() ^ color2.getRGB() ^ xorColor

        };

        for (int i = 0; i < 3; i++) {

            int x = startX + 100 * i;

            int rgb = bi.getRGB(x, 150);

            if (rgb != expectedColors[i]) {

                String msg = "Colors mismatch: x = " + x +

                        ", got " + new Color(rgb) + ", expected " +

                        new Color(expectedColors[i]);

                System.err.println(msg);

                write(bi);

                throw new RuntimeException("FAILED: " + msg);

            }

        }

    }

    void drawPattern(Graphics2D g, int x) {

        g.setColor(color1);

        g.fillRect(x, 0, 200, 300);

        g.setColor(color2);

        g.fillRect(x+100, 0, 200, 300);

    }

    GraphicsConfiguration getDefaultGC() {

        return GraphicsEnvironment.getLocalGraphicsEnvironment().

                getDefaultScreenDevice().getDefaultConfiguration();

    }

    void createVImg() {

        if (vImg != null) {

            vImg.flush();

            vImg = null;

        }

        vImg = getDefaultGC().createCompatibleVolatileImage(width, height);

    }

    void write(BufferedImage bi) {

        if (fileName != null) {

            try {

                ImageIO.write(bi, "png", new File(fileName));

            } catch (IOException e) {

                System.err.println("Can't write image file " + fileName);

            }

        }

    }

    void test() {

        createVImg();

        BufferedImage bi = null;

        do {

            int valCode = vImg.validate(getDefaultGC());

            if (valCode == VolatileImage.IMAGE_INCOMPATIBLE) {

                createVImg();

            }

            Graphics2D g = vImg.createGraphics();

            draw(g);

            bi = vImg.getSnapshot();

        } while (vImg.contentsLost());

        if (bi != null) {

            test(bi);

            write(bi);

        }

    }

}