Java Code Examples for java.awt.GraphicsConfiguration#createCompatibleVolatileImage()

public static void main(String[] args) {

        boolean iaeThrown = false;
        GraphicsEnvironment ge = GraphicsEnvironment.
                                      getLocalGraphicsEnvironment();
        GraphicsConfiguration gc = ge.getDefaultScreenDevice().
                                           getDefaultConfiguration();
        try {
            VolatileImage volatileImage = gc.createCompatibleVolatileImage(0, 0);
        } catch (IllegalArgumentException iae) {
            iaeThrown = true;
        }
        if (!iaeThrown) {
            throw new RuntimeException ("IllegalArgumentException not thrown " +
                                        "for createCompatibleVolatileImage(0,0)");
        }
    }
 

public static void main(final String[] args) {
    final GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    final GraphicsConfiguration gc =
            ge.getDefaultScreenDevice().getDefaultConfiguration();
    final VolatileImage vi = gc.createCompatibleVolatileImage(200, 200);
    final SunGraphics2D sg2d = (SunGraphics2D) vi.createGraphics();

    sg2d.constrain(0, 61, 100, 100);
    final AffineTransform expected = sg2d.cloneTransform();
    sg2d.setTransform(sg2d.getTransform());
    final AffineTransform actual = sg2d.cloneTransform();
    sg2d.dispose();
    vi.flush();
    if (!expected.equals(actual)) {
        System.out.println("Expected = " + expected);
        System.out.println("Actual = " + actual);
        throw new RuntimeException("Wrong transform");
    }
}
 

private static void initVI(GraphicsConfiguration gc) {
    int res;
    if (destVI == null) {
        res = VolatileImage.IMAGE_INCOMPATIBLE;
    } else {
        res = destVI.validate(gc);
    }
    if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
        if (destVI != null) destVI.flush();
        destVI = gc.createCompatibleVolatileImage(IMAGE_SIZE, IMAGE_SIZE);
        destVI.validate(gc);
        res = VolatileImage.IMAGE_RESTORED;
    }
    if (res == VolatileImage.IMAGE_RESTORED) {
        Graphics vig = destVI.getGraphics();
        vig.setColor(Color.red);
        vig.fillRect(0, 0, destVI.getWidth(), destVI.getHeight());
        vig.dispose();
    }
}
 

private void initImages(int w, int h) {
    if (images == null) {
        images = new Image[6];
        GraphicsConfiguration gc = getGraphicsConfiguration();
        for (int i = OPAQUE; i <= TRANSLUCENT; i++) {
            VolatileImage vi =
                gc.createCompatibleVolatileImage(w,h/images.length,i);
            images[i-1] = vi;
            vi.validate(gc);
            String s = "LCD AA Text rendered to " + tr[i - 1] + " HW destination";
            render(vi, i, s);

            s = "LCD AA Text rendered to " + tr[i - 1] + " SW destination";
            images[i-1+3] = gc.createCompatibleImage(w, h/images.length, i);
            render(images[i-1+3], i, s);
        }
    }
}
 

@Override
protected Image getBackBuffer(boolean clear) {
    int w = window.getWidth();
    int h = window.getHeight();
    GraphicsConfiguration gc = peer.getGraphicsConfiguration();

    if (viBB == null || viBB.getWidth() != w || viBB.getHeight() != h ||
        viBB.validate(gc) == IMAGE_INCOMPATIBLE)
    {
        flush();

        if (gc instanceof AccelGraphicsConfig) {
            AccelGraphicsConfig agc = ((AccelGraphicsConfig)gc);
            viBB = agc.createCompatibleVolatileImage(w, h,
                                                     TRANSLUCENT,
                                                     RT_PLAIN);
        }
        if (viBB == null) {
            viBB = gc.createCompatibleVolatileImage(w, h, TRANSLUCENT);
        }
        viBB.validate(gc);
    }

    return clear ? clearImage(viBB) : viBB;
}
 

private static VolatileImage getVolatileImage(GraphicsConfiguration gc,
                                              int size) {
    VolatileImage vi = gc.createCompatibleVolatileImage(size, size);
    Graphics2D g2d = vi.createGraphics();
    g2d.setColor(Color.GREEN);
    g2d.fillRect(0, 0, size, size);
    return vi;
}
 

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 void runTest(Graphics g) {
    int status = IMAGE_OK;
    int count1 = 0;
    do {
        GraphicsConfiguration gc = getGraphicsConfiguration();
        int count2 = 0;
        while (vi == null || (status = vi.validate(gc)) != IMAGE_OK) {
            if (++count2 > LOOP_THRESHOLD) {
                System.err.println("Infinite loop detected: count2="+count2);
                failed = true;
                return;
            }
            if (vi == null || status == IMAGE_INCOMPATIBLE) {
                if (vi != null) { vi.flush(); vi = null; }
                vi = gc.createCompatibleVolatileImage(100, 100);
                continue;
            }
            if (status == IMAGE_RESTORED) {
                Graphics gg = vi.getGraphics();
                gg.setColor(Color.green);
                gg.fillRect(0, 0, vi.getWidth(), vi.getHeight());
                break;
            }
        }
        g.drawImage(vi, getInsets().left, getInsets().top, null);
        if (++count1 > LOOP_THRESHOLD) {
            System.err.println("Infinite loop detected: count1="+count1);
            failed = true;
            return;
        }
    } while (vi.contentsLost());
}
 

public static void main(final String[] args) {
    BufferedImage img = new BufferedImage(200, 40, TYPE_INT_ARGB);
    draw(img);
    validate(img);

    if (GraphicsEnvironment.isHeadless()) {
        return;
    }

    GraphicsConfiguration gc =
            GraphicsEnvironment.getLocalGraphicsEnvironment()
                    .getDefaultScreenDevice().getDefaultConfiguration();

    VolatileImage vi = gc.createCompatibleVolatileImage(200, 40);
    BufferedImage snapshot;
    int attempt = 0;
    while (true) {
        if (++attempt > 10) {
            throw new RuntimeException("Too many attempts: " + attempt);
        }
        vi.validate(gc);
        draw(vi);
        snapshot = vi.getSnapshot();
        if (!vi.contentsLost()) {
            break;
        }
    }
    validate(snapshot);
}
 

public static void main(String[] args) {
    GraphicsEnvironment ge = GraphicsEnvironment
            .getLocalGraphicsEnvironment();
    GraphicsConfiguration gc = ge.getDefaultScreenDevice()
                                 .getDefaultConfiguration();
    VolatileImage vi = gc.createCompatibleVolatileImage(100, 100);

    Graphics2D g2d = vi.createGraphics();
    g2d.scale(2, 2);
    BufferedImage img = new BufferedImage(50, 50,
                                          BufferedImage.TYPE_INT_ARGB);

    g2d.drawImage(img, 10, 25, Color.blue, null);
    g2d.dispose();
}
 

private static VolatileImage createVolatileImage(int width, int height,
                                                 int transparency) {
    GraphicsEnvironment ge = GraphicsEnvironment.
                             getLocalGraphicsEnvironment();
    GraphicsConfiguration gc = ge.getDefaultScreenDevice().
                               getDefaultConfiguration();

    VolatileImage image = gc.createCompatibleVolatileImage(width, height,
                                                           transparency);
    return image;
}
 

private void test() {
    GraphicsConfiguration gc =
        GraphicsEnvironment.getLocalGraphicsEnvironment().
            getDefaultScreenDevice().getDefaultConfiguration();
    if (gc.getColorModel().getPixelSize() < 16) {
        System.out.println("<16 bit depth detected, test passed");
        return;
    }

    VolatileImage vi =
        gc.createCompatibleVolatileImage(250, 4*120, Transparency.OPAQUE);
    BufferedImage res;
    do {
        vi.validate(gc);
        Graphics2D g2d = vi.createGraphics();
        g2d.setColor(Color.white);
        g2d.fillRect(0, 0, vi.getWidth(), vi.getHeight());

        render(g2d);

        res = vi.getSnapshot();
    } while (vi.contentsLost());

    for (int y = 0; y < bi.getHeight(); y++) {
        for (int x = 0; x < bi.getWidth(); x++) {
            if (res.getRGB(x, y) == Color.black.getRGB()) {
                System.err.printf("Test FAILED: found black at %d,%d\n",
                                  x, y);
                try {
                    String fileName = "AccelPaintsTest.png";
                    ImageIO.write(res, "png", new File(fileName));
                    System.err.println("Dumped rendering to " + fileName);
                } catch (IOException e) {}
                throw new RuntimeException("Test FAILED: found black");
            }
        }
    }
}
 

private static VolatileImage getVolatileImage(GraphicsConfiguration gc,
                                              int size) {
    VolatileImage vi = gc.createCompatibleVolatileImage(size, size);
    Graphics2D g2d = vi.createGraphics();
    g2d.setColor(Color.GREEN);
    g2d.fillRect(0, 0, size, size);
    return vi;
}
 

public static void main(final String[] args) {
    BufferedImage img = new BufferedImage(200, 40, TYPE_INT_ARGB);
    draw(img);
    validate(img);

    if (GraphicsEnvironment.isHeadless()) {
        return;
    }

    GraphicsConfiguration gc =
            GraphicsEnvironment.getLocalGraphicsEnvironment()
                    .getDefaultScreenDevice().getDefaultConfiguration();

    VolatileImage vi = gc.createCompatibleVolatileImage(200, 40);
    BufferedImage snapshot;
    int attempt = 0;
    while (true) {
        if (++attempt > 10) {
            throw new RuntimeException("Too many attempts: " + attempt);
        }
        vi.validate(gc);
        draw(vi);
        snapshot = vi.getSnapshot();
        if (!vi.contentsLost()) {
            break;
        }
    }
    validate(snapshot);
}
 

public static void main(String[] args) {

        GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice gd = ge.getDefaultScreenDevice();
        GraphicsConfiguration gc = gd.getDefaultConfiguration();
        VolatileImage vi = gc.createCompatibleVolatileImage(16, 16);
        vi.validate(gc);

        BufferedImage bi =
            new BufferedImage(2, 2, BufferedImage.TYPE_INT_RGB);
        int data[] = ((DataBufferInt)bi.getRaster().getDataBuffer()).getData();
        data[0] = 0x0000007f;
        data[1] = 0x0000007f;
        data[2] = 0xff00007f;
        data[3] = 0xff00007f;
        Graphics2D g = vi.createGraphics();
        g.setComposite(AlphaComposite.SrcOver.derive(0.999f));
        g.drawImage(bi, 0, 0, null);

        bi = vi.getSnapshot();
        if (bi.getRGB(0, 0) != bi.getRGB(1, 1)) {
            throw new RuntimeException("Test FAILED: color at 0x0 ="+
                Integer.toHexString(bi.getRGB(0, 0))+" differs from 1x1 ="+
                Integer.toHexString(bi.getRGB(1,1)));
        }

        System.out.println("Test PASSED.");
    }
 

private static VolatileImage createDst() {
    GraphicsConfiguration gc =
            GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();

    return gc.createCompatibleVolatileImage(200, 200);
}
 

private static VolatileImage createVolatileImage() {
    final GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    final GraphicsConfiguration gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
    return gc.createCompatibleVolatileImage(SIZE, SIZE,
                                            Transparency.TRANSLUCENT);
}
 

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

    if (gc.getColorModel().getPixelSize() <= 8) {
        System.out.println("8-bit color model, test considered passed");
        return;
    }

    /*
     * Set up images:
     * 1.) VolatileImge for rendering to,
     * 2.) BufferedImage for reading back the contents of the VI
     * 3.) The image triggering the problem
     */
    VolatileImage vImg = null;
    BufferedImage readBackBImg;

    // create a BITMASK ICM such that the transparent color is
    // tr. black (and it's the first in the color map so a buffered image
    // created with this ICM is transparent
    byte r[] = { 0x00, (byte)0xff};
    byte g[] = { 0x00, (byte)0xff};
    byte b[] = { 0x00, (byte)0xff};
    IndexColorModel icm = new IndexColorModel(8, 2, r, g, b, 0);
    WritableRaster wr = icm.createCompatibleWritableRaster(25, 25);
    BufferedImage tImg = new BufferedImage(icm, wr, false, null);

    do {
        if (vImg == null ||
            vImg.validate(gc) == VolatileImage.IMAGE_INCOMPATIBLE)
        {
            vImg = gc.createCompatibleVolatileImage(tImg.getWidth(),
                                                    tImg.getHeight());
        }

        Graphics viG = vImg.getGraphics();
        viG.setColor(Color.red);
        viG.fillRect(0, 0, vImg.getWidth(), vImg.getHeight());

        viG.drawImage(tImg, 0, 0, Color.green, null);
        viG.fillRect(0, 0, vImg.getWidth(), vImg.getHeight());
        viG.drawImage(tImg, 0, 0, Color.white, null);

        readBackBImg = vImg.getSnapshot();
    } while (vImg.contentsLost());

    for (int x = 0; x < readBackBImg.getWidth(); x++) {
        for (int y = 0; y < readBackBImg.getHeight(); y++) {
            int currPixel = readBackBImg.getRGB(x, y);
            if (currPixel != Color.white.getRGB()) {
                String fileName = "DrawImageBgTest.png";
                try {
                    ImageIO.write(readBackBImg, "png", new File(fileName));
                    System.err.println("Dumped image to " + fileName);
                } catch (IOException ex) {}
                throw new
                    RuntimeException("Test Failed: found wrong color: 0x"+
                                     Integer.toHexString(currPixel));
            }
        }
    }
    System.out.println("Test Passed.");
}
 

private static VolatileImage getVolatileImage(GraphicsConfiguration gc,
                                              int size) {
    return gc.createCompatibleVolatileImage(size, size);
}
 

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

    if (gc.getColorModel().getPixelSize() <= 8) {
        System.out.println("8-bit color model, test considered passed");
        return;
    }

    /*
     * Set up images:
     * 1.) VolatileImge for rendering to,
     * 2.) BufferedImage for reading back the contents of the VI
     * 3.) The image triggering the problem
     */
    VolatileImage vImg = null;
    BufferedImage readBackBImg;

    // create a BITMASK ICM such that the transparent color is
    // tr. black (and it's the first in the color map so a buffered image
    // created with this ICM is transparent
    byte r[] = { 0x00, (byte)0xff};
    byte g[] = { 0x00, (byte)0xff};
    byte b[] = { 0x00, (byte)0xff};
    IndexColorModel icm = new IndexColorModel(8, 2, r, g, b, 0);
    WritableRaster wr = icm.createCompatibleWritableRaster(25, 25);
    BufferedImage tImg = new BufferedImage(icm, wr, false, null);

    do {
        if (vImg == null ||
            vImg.validate(gc) == VolatileImage.IMAGE_INCOMPATIBLE)
        {
            vImg = gc.createCompatibleVolatileImage(tImg.getWidth(),
                                                    tImg.getHeight());
        }

        Graphics viG = vImg.getGraphics();
        viG.setColor(Color.red);
        viG.fillRect(0, 0, vImg.getWidth(), vImg.getHeight());

        viG.drawImage(tImg, 0, 0, Color.green, null);
        viG.fillRect(0, 0, vImg.getWidth(), vImg.getHeight());
        viG.drawImage(tImg, 0, 0, Color.white, null);

        readBackBImg = vImg.getSnapshot();
    } while (vImg.contentsLost());

    for (int x = 0; x < readBackBImg.getWidth(); x++) {
        for (int y = 0; y < readBackBImg.getHeight(); y++) {
            int currPixel = readBackBImg.getRGB(x, y);
            if (currPixel != Color.white.getRGB()) {
                String fileName = "DrawImageBgTest.png";
                try {
                    ImageIO.write(readBackBImg, "png", new File(fileName));
                    System.err.println("Dumped image to " + fileName);
                } catch (IOException ex) {}
                throw new
                    RuntimeException("Test Failed: found wrong color: 0x"+
                                     Integer.toHexString(currPixel));
            }
        }
    }
    System.out.println("Test Passed.");
}