Examples of VolatileImage

ae.java.awt.image.VolatileImage
e creation VolatileImage vImg = createVolatileImage(w, h); // rendering to the image void renderOffscreen() { do { if (vImg.validate(getGraphicsConfiguration()) == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it vImg = createVolatileImage(w, h); } Graphics2D g = vImg.createGraphics(); // // miscellaneous rendering commands... // g.dispose(); } while (vImg.contentsLost()); } // copying from the image (here, gScreen is the Graphics // object for the onscreen window) do { int returnCode = vImg.validate(getGraphicsConfiguration()); if (returnCode == VolatileImage.IMAGE_RESTORED) { // Contents need to be restored renderOffscreen(); // restore contents } else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it vImg = createVolatileImage(w, h); renderOffscreen(); } gScreen.drawImage(vImg, 0, 0, this); } while (vImg.contentsLost());
Note that this class subclasses from the {@link Image} class, whichincludes methods that take an {@link ImageObserver} parameter forasynchronous notifications as information is received from a potential {@link ImageProducer}. Since this VolatileImage is not loaded from an asynchronous source, the various methods that take an ImageObserver parameter will behave as if the data has already been obtained from the ImageProducer. Specifically, this means that the return values from such methods will never indicate that the information is not yet available and the ImageObserver used in such methods will never need to be recorded for an asynchronous callback notification. @since 1.4
com.google.code.appengine.awt.image.VolatileImage
Volatile image implementation
java.awt.image.VolatileImage
e creation VolatileImage vImg = createVolatileImage(w, h); // rendering to the image void renderOffscreen() { do { if (vImg.validate(getGraphicsConfiguration()) == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it vImg = createVolatileImage(w, h); } Graphics2D g = vImg.createGraphics(); // // miscellaneous rendering commands... // g.dispose(); } while (vImg.contentsLost()); } // copying from the image (here, gScreen is the Graphics // object for the onscreen window) do { int returnCode = vImg.validate(getGraphicsConfiguration()); if (returnCode == VolatileImage.IMAGE_RESTORED) { // Contents need to be restored renderOffscreen(); // restore contents } else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it vImg = createVolatileImage(w, h); renderOffscreen(); } gScreen.drawImage(vImg, 0, 0, this); } while (vImg.contentsLost());
Note that this class subclasses from the {@link Image} class, whichincludes methods that take an {@link ImageObserver} parameter forasynchronous notifications as information is received from a potential {@link ImageProducer}. Since this VolatileImage is not loaded from an asynchronous source, the various methods that take an ImageObserver parameter will behave as if the data has already been obtained from the ImageProducer. Specifically, this means that the return values from such methods will never indicate that the information is not yet available and the ImageObserver used in such methods will never need to be recorded for an asynchronous callback notification. @since 1.4

Examples of java.awt.image.VolatileImage

            }
        } else {
            System.err.println("No screen rendering checks.");
        }


        VolatileImage vi = gc.createCompatibleVolatileImage(512, 512);
        vi.validate(gc);


        long timeStarted = System.currentTimeMillis();
        while (!done && (System.currentTimeMillis() - timeStarted) < RUN_TIME) {


            if (++cnt > 100) {
                int w = frame.getWidth() + incW;
                int h = frame.getHeight() + incH;
                if (w < minW || w > maxW ) {
                    incW = -incW;
                }
                if (h < minH || h > maxH ) {
                    incH = -incH;
                }
                frame.setSize(w, h);
                cnt = 0;
            }


            // try to put the device into non-default state, for example,
            // this operation below will set the transform
            vi.validate(gc);
            Graphics2D vig = (Graphics2D)vi.getGraphics();
            vig.rotate(30.0f, vi.getWidth()/2, vi.getHeight()/2);
            vig.drawImage(output, 0, 0,
                          vi.getWidth(), vi.getHeight(), null);


            Insets in = frame.getInsets();
            frame.getGraphics().drawImage(output, in.left, in.top, null);
            if (cnt == 90 && robot != null) {
                // area where we blitted to should be either white or green

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Examples of java.awt.image.VolatileImage

        g.setColor(Color.green);
        g.fillRect(0, 0, w, h);


        int bltWidth = srcRect.width;
        int bltHeight = srcRect.height;
        VolatileImage vi = null;
        if (image instanceof VolatileImage) {
            vi = (VolatileImage)image;
        }
        do {
            if (vi != null) {
                GraphicsConfiguration gc = getGraphicsConfiguration();
                if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
                    initImage(gc, vi);
                }
            }
            g.drawImage(image,
                    dstRect.x, dstRect.y,
                    dstRect.x + bltWidth, dstRect.y + bltHeight,
                    srcRect.x, srcRect.y,
                    srcRect.x + bltWidth, srcRect.y + bltHeight,
                    Color.red,
                    null);
        } while (vi != null && vi.contentsLost());
    }

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Examples of java.awt.image.VolatileImage

    }


    static VolatileImage getVImage(GraphicsConfiguration gc,
                                   int w, int h)
    {
        VolatileImage image =
            gc.createCompatibleVolatileImage(w, h, Transparency.OPAQUE);
        image.validate(gc);
        initImage(gc, image);
        return image;
    }

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Examples of java.awt.image.VolatileImage

    }


    private static final String text =
        "The quick brown fox jumps over the lazy dog 1234567890";
    private static void renderText(Frame frame, Font f1) {
        VolatileImage vi = frame.createVolatileImage(256, 32);
        vi.validate(frame.getGraphicsConfiguration());


        Graphics2D g = vi.createGraphics();
        g.setFont(f1);
        g.drawString(text, 0, vi.getHeight()/2);
        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                           RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
        g.drawString(text, 0, vi.getHeight()/2);
        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                           RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
        g.drawString(text, 0, vi.getHeight()/2);
        Toolkit.getDefaultToolkit().sync();
    }

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Examples of java.awt.image.VolatileImage


        bmImage = gc.createCompatibleImage(64, 64, Transparency.BITMASK);
        argbImage = gc.createCompatibleImage(64, 64, Transparency.TRANSLUCENT);


        if (gc.getColorModel().getPixelSize() > 8) {
            VolatileImage vi =
                gc.createCompatibleVolatileImage(64, 64, Transparency.OPAQUE);
            do {
                if (vi.validate(gc) == VolatileImage.IMAGE_INCOMPATIBLE) {
                    vi = gc.createCompatibleVolatileImage(64, 64,
                                                          Transparency.OPAQUE);
                    vi.validate(gc);
                }


                int color = testImage(vi, false, false);
                testResult("vi_noclip_notx", vi.getSnapshot(), color);


                color = testImage(vi, true, true);
                testResult("vi_clip_tx", vi.getSnapshot(), color);


                color = testImage(vi, true, false);
                testResult("vi_clip_notx", vi.getSnapshot(), color);


                color = testImage(vi, false, true);
                testResult("vi_noclip_tx", vi.getSnapshot(), color);
            } while (vi.contentsLost());
        }


        BufferedImage bi = new BufferedImage(64, 64, BufferedImage.TYPE_INT_RGB);
        int color = testImage(bi, false, false);
        testResult("bi_noclip_notx", bi, color);

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Examples of java.awt.image.VolatileImage

        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",

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Examples of java.awt.image.VolatileImage

        AccelGraphicsConfig agc = (AccelGraphicsConfig) gc;
        printAGC(agc);


        testContext(agc);


        VolatileImage vi = gc.createCompatibleVolatileImage(10, 10);
        vi.validate(gc);
        if (vi instanceof DestSurfaceProvider) {
            System.out.println("Passed: VI is DestSurfaceProvider");
            Surface s = ((DestSurfaceProvider) vi).getDestSurface();
            if (s instanceof AccelSurface) {
                System.out.println("Passed: Obtained Accel Surface");
                printSurface((AccelSurface) s);
            }
            Graphics g = vi.getGraphics();
            if (g instanceof DestSurfaceProvider) {
                System.out.println("Passed: VI graphics is " +
                                   "DestSurfaceProvider");
                printSurface(((DestSurfaceProvider) g).getDestSurface());
            }

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Examples of java.awt.image.VolatileImage

                                       int transparency, int type)
    {
        int caps = agc.getContextCapabilities().getCaps();
        int w = 11, h = 17;


        VolatileImage vi =
            agc.createCompatibleVolatileImage(w, h, transparency, type);
        if ((cap & caps) != 0) {
            if (vi == null) {
                System.out.printf("Failed: cap=%d is supported but " +
                                  "image wasn't created\n", cap);
                throw new RuntimeException("Failed: image wasn't created " +
                                           "for supported cap");
            } else {
                if (!(vi instanceof DestSurfaceProvider)) {
                    throw new RuntimeException("Failed: created VI is not " +
                                               "DestSurfaceProvider");
                }
                Surface s = ((DestSurfaceProvider) vi).getDestSurface();
                if (s instanceof AccelSurface) {
                    AccelSurface as = (AccelSurface) s;
                    printSurface(as);
                    if (as.getType() != type) {
                        throw new RuntimeException("Failed: returned VI is" +
                                " of incorrect type: " + as.getType() +
                                " requested type=" + type);
                    } else {
                        System.out.printf("Passed: VI of type %d was " +
                                "created for cap=%d\n", type, cap);
                    }
                    if (as.getType() == TEXTURE) {
                        boolean ex = false;
                        try {
                            Graphics g = vi.getGraphics();
                            g.dispose();
                        } catch (UnsupportedOperationException e) {
                            ex = true;
                        }
                        if (!ex) {

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Examples of java.awt.image.VolatileImage

                (int)(ram / (r.width * r.height * gc.getColorModel().getPixelSize()/8));
            iterations = Math.max(iterations, i);
            System.err.println("iterations="+iterations);
        }
        for (int i = 0; i < iterations; i++) {
            VolatileImage vi =
                agc.createCompatibleVolatileImage(r.width, r.height,
                                                  Transparency.OPAQUE,
                                                  AccelSurface.RT_PLAIN);
            if (vi == null) {
                break;
            }
            vis.add(vi);
        }
        for (VolatileImage vi : vis) {
            vi.flush();
        }
        vis = null;


        System.out.println("Passed: testing for possible NPEs " +
                           "during VI creation");

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Examples of java.awt.image.VolatileImage

     */
    public void replaceSurfaceData(int newNumBackBuffers,
                                   BufferCapabilities caps)
    {
        SurfaceData oldData = null;
        VolatileImage oldBB = null;
        synchronized(((Component)target).getTreeLock()) {
            synchronized(this) {
                if (pData == 0) {
                    return;
                }
                numBackBuffers = newNumBackBuffers;
                Win32GraphicsConfig gc =
                        (Win32GraphicsConfig)getGraphicsConfiguration();
                ScreenUpdateManager mgr = ScreenUpdateManager.getInstance();
                oldData = surfaceData;
                mgr.dropScreenSurface(oldData);
                surfaceData =
                    mgr.createScreenSurface(gc, this, numBackBuffers, true);
                if (oldData != null) {
                    oldData.invalidate();
                }


                oldBB = backBuffer;
                if (numBackBuffers > 0) {
                    // set the caps first, they're used when creating the bb
                    backBufferCaps = caps;
                    backBuffer = gc.createBackBuffer(this);
                } else if (backBuffer != null) {
                    backBufferCaps = null;
                    backBuffer = null;
                }
            }
        }
        // it would be better to do this before we create new ones,
        // but then we'd run into deadlock issues
        if (oldData != null) {
            oldData.flush();
            // null out the old data to make it collected faster
            oldData = null;
        }
        if (oldBB != null) {
            oldBB.flush();
            // null out the old data to make it collected faster
            oldData = null;
        }
    }

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