/*

 * 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.

 *

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 */

/*

 * @test

 * @bug     8040617

 * @summary Test verifies that an attempt to get an accelerated copy of

 *          a huge buffered image does not result in an OOME.

 *

 * @run     main DrawHugeImageTest

 */

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;

public class DrawHugeImageTest {

    // we have to render the BI source several times in order

    // to get an accelerated copy to be used.

    static {

        System.setProperty("sun.java2d.accthreshold", "1");

    }

    private static final int max_rendering_count = 5;

    private static final Color srcColor = Color.red;

    private static final Color dstColor = Color.blue;

    public static void main(String[] args) {

        BufferedImage src = createSrc();

        VolatileImage dst = createDst();

        System.out.println("Dst: " + dst);

        boolean status;

        int count = max_rendering_count;

        do {

            System.out.println("render image: " + (max_rendering_count - count));

            status = render(src, dst);

        } while (status && count-- > 0);

        if (!status || count > 0) {

            throw new RuntimeException("Test failed: " + count);

        }

    }

    private static boolean render(BufferedImage src, VolatileImage dst) {

        int cnt = 5;

        do {

            Graphics2D g = dst.createGraphics();

            g.setColor(dstColor);

            g.fillRect(0, 0, dst.getWidth(), dst.getHeight());

            g.drawImage(src, 0, 0, null);

            g.dispose();

        } while (dst.contentsLost() && (--cnt > 0));

        if (cnt == 0) {

            System.err.println("Test failed: unable to render to volatile destination");

            return false;

        }

        BufferedImage s = dst.getSnapshot();

        return s.getRGB(1,1) == srcColor.getRGB();

    }

    private static BufferedImage createSrc() {

        final int w = 20000;

        final int h = 5;

        BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);

        Graphics2D g = img.createGraphics();

        g.setColor(srcColor);

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

        g.dispose();

        return img;

    }

    private static VolatileImage createDst() {

        GraphicsConfiguration gc =

                GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();

        return gc.createCompatibleVolatileImage(200, 200);

    }

}