/*

 * Copyright (c) 2012, 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     7124347

 * @summary Verifies that rendering with XOR composite, and arbitraty

 *          custom composite doesn not cause internal errors.

 *

 * @run     main/othervm -Dsun.java2d.opengl=True CustomCompositeTest

 */

import java.awt.AWTException;

import java.awt.Color;

import java.awt.Composite;

import java.awt.CompositeContext;

import java.awt.Dimension;

import java.awt.GradientPaint;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.GraphicsConfiguration;

import java.awt.GraphicsEnvironment;

import java.awt.ImageCapabilities;

import java.awt.RenderingHints;

import java.awt.image.BufferedImage;

import java.awt.image.ColorModel;

import java.awt.image.DataBufferInt;

import java.awt.image.Raster;

import java.awt.image.SinglePixelPackedSampleModel;

import java.awt.image.VolatileImage;

import java.awt.image.WritableRaster;

import java.util.concurrent.CountDownLatch;

import javax.swing.JComponent;

import javax.swing.JFrame;

import javax.swing.SwingUtilities;

public class CustomCompositeTest {

    private static JFrame frame;

    private static CountDownLatch paintLatch;

    private static Throwable paintError;

    public static void main(String[] args) {

        paintLatch = new CountDownLatch(1);

        paintError = null;

        SwingUtilities.invokeLater(new Runnable() {

            public void run() {

                initGUI();

            }

        });

        try {

            paintLatch.await();

        } catch (InterruptedException e) {

        };

        System.out.println("Paint is done!");

        if (paintError != null) {

            frame.dispose();

            throw new RuntimeException("Test FAILED.", paintError);

        }

        System.out.println("Phase 1: PASSED.");

        // now resise the frame in order to cause re-paint with accelerated

        // source images.

        paintError = null;

        paintLatch = new CountDownLatch(1);

        SwingUtilities.invokeLater(new Runnable() {

            @Override

            public void run() {

                Dimension size = frame.getSize();

                size.width += 50;

                size.height += 50;

                frame.setSize(size);

            }

        });

        try {

            paintLatch.await();

        } catch (InterruptedException e) {

        };

        if (paintError != null) {

            frame.dispose();

            throw new RuntimeException("Resize test FAILED.", paintError);

        }

        frame.dispose();

        System.out.println("Phase 2: PASSED.");

        GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();

        GraphicsConfiguration cfg = env.getDefaultScreenDevice().getDefaultConfiguration();

        // test rendering to accelerated volatile image

        testVolatileImage(cfg, true);

        System.out.println("Phase 3: PASSED.");

        // test rendering to unaccelerated volatile image

        testVolatileImage(cfg, false);

        System.out.println("Phase 4: PASSED.");

    }

    private static void testVolatileImage(GraphicsConfiguration cfg,

            boolean accelerated)

    {

        VolatileImage dst = null;

        try {

            dst = cfg.createCompatibleVolatileImage(640, 480,

                new ImageCapabilities(accelerated));

        } catch (AWTException e) {

            System.out.println("Unable to create volatile image, skip the test.");

            return;

        }

        renderToVolatileImage(dst);

    }

    private static void renderToVolatileImage(VolatileImage dst) {

        Graphics2D g = dst.createGraphics();

        do {

            System.out.println("Render to volatile image..");

            try {

                MyComp.renderTest(g, dst.getHeight(), dst.getHeight());

            } catch (Throwable e) {

                throw new RuntimeException("Test FAILED.", e);

            }

        } while (dst.contentsLost());

        System.out.println("Done.");

    }

    private static void initGUI() {

        frame = new JFrame("Silly composite");

        frame.getContentPane().add(new MyComp());

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.pack();

        frame.setVisible(true);

    }

    private static class MyComp extends JComponent {

        private static BufferedImage theImage;

        public MyComp() {

        }

        private static BufferedImage getTestImage() {

            if (theImage == null) {

                theImage = new BufferedImage(256, 256, BufferedImage.TYPE_INT_ARGB);

                Graphics2D g2d = theImage.createGraphics();

                g2d.setColor(Color.red);

                g2d.fillRect(0, 0, 256, 256);

                g2d.setPaint(new GradientPaint(0, 0, Color.red, 256, 256, Color.blue));

                g2d.fillRect(0, 100, 256, 256);

                g2d.dispose();

            }

            return theImage;

        }

        public Dimension getPreferredSize() {

            return new Dimension(640, 375);

        }

        public void paintComponent(Graphics g) {

            Graphics2D g2d = (Graphics2D) g;

            try {

                renderTest(g2d, getWidth(), getHeight());

            } catch (Throwable e) {

                paintError = e;

            }

            if (paintLatch != null) {

                paintLatch.countDown();

            }

        }

        public static void renderTest(Graphics2D g2d, int w, int h) {

            g2d.setColor(Color.yellow);

            g2d.fillRect(0, 0, w, h);

            BufferedImage image = getTestImage();

            // draw original image

            g2d.drawRenderedImage(image, null);

            // draw image with custom composite

            g2d.translate(175, 25);

            Composite currentComposite = g2d.getComposite();

            g2d.setComposite(new TestComposite());

            g2d.drawRenderedImage(image, null);

            g2d.setComposite(currentComposite);

            // draw image with XOR

            g2d.translate(175, 25);

            g2d.setXORMode(Color.red);

            g2d.drawRenderedImage(image, null);

            System.out.println("Painting is done...");

        }

    }

    // A silly custom Composite to demonstrate the problem - just inverts the RGB

    private static class TestComposite implements Composite {

        public CompositeContext createContext(ColorModel srcColorModel, ColorModel dstColorModel, RenderingHints hints) {

            return new TestCompositeContext();

        }

    }

    private static class TestCompositeContext implements CompositeContext {

        public void dispose() {

        }

        public void compose(Raster src, Raster dstIn, WritableRaster dstOut) {

            int w = src.getWidth();

            int h = src.getHeight();

            DataBufferInt srcDB = (DataBufferInt) src.getDataBuffer();

            DataBufferInt dstOutDB = (DataBufferInt) dstOut.getDataBuffer();

            int srcRGB[] = srcDB.getBankData()[0];

            int dstOutRGB[] = dstOutDB.getBankData()[0];

            int srcOffset = srcDB.getOffset();

            int dstOutOffset = dstOutDB.getOffset();

            int srcScanStride = ((SinglePixelPackedSampleModel) src.getSampleModel()).getScanlineStride();

            int dstOutScanStride = ((SinglePixelPackedSampleModel) dstOut.getSampleModel()).getScanlineStride();

            int srcAdjust = srcScanStride - w;

            int dstOutAdjust = dstOutScanStride - w;

            int si = srcOffset;

            int doi = dstOutOffset;

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

                for (int j = 0; j < w; j++) {

                    dstOutRGB[doi] = srcRGB[si] ^ 0x00ffffff;

                    si++;

                    doi++;

                }

                si += srcAdjust;

                doi += dstOutAdjust;

            }

        }

    }

}