Examples with Raster java.awt.image.Raster used on opensource projects

Example 1 with Raster

use of java.awt.image.Raster in project jna by java-native-access.

the class AlphaMaskDemo method updateX11.

private void updateX11(boolean a, boolean i) {
    X11 x11 = X11.INSTANCE;
    X11.Window win = X11.Window.None;
    Display dpy = x11.XOpenDisplay(null);
    try {
        if (!alphaWindow.isDisplayable()) {
            alphaWindow.pack();
            if (System.getProperty("java.version").matches("^1\\.4\\..*"))
                alphaWindow.setVisible(true);
            win = new X11.Window((int) Native.getWindowID(alphaWindow));
            Window parent = alphaWindow.getOwner();
            Point where = parent.getLocationOnScreen();
            where.translate(parent.getWidth(), 0);
            alphaWindow.removeAll();
            alphaWindow.setLocation(where);
            alphaWindow.setBackground(new Color(0, 0, 0, 0));
        } else {
            win = new X11.Window((int) Native.getWindowID(alphaWindow));
        }
        if (i) {
            int w = image.getWidth(null);
            int h = image.getHeight(null);
            alphaWindow.setSize(w, h);
            if (buffer == null || buffer.size() != w * h * 4) {
                buffer = new com.sun.jna.Memory(w * h * 4);
                pixels = new int[w * h];
            }
            BufferedImage buf = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);
            Graphics g = buf.getGraphics();
            g.drawImage(image, 0, 0, w, h, null);
            long start = System.currentTimeMillis();
            long blitTime, putImageTime, write;
            GC gc = x11.XCreateGC(dpy, win, new NativeLong(0), null);
            long gcTime = System.currentTimeMillis();
            try {
                Raster raster = buf.getData();
                int[] pixel = new int[4];
                for (int y = 0; y < h; y++) {
                    for (int x = 0; x < w; x++) {
                        raster.getPixel(x, y, pixel);
                        int alpha = (pixel[3] & 0xFF) << 24;
                        int red = (pixel[2] & 0xFF);
                        int green = (pixel[1] & 0xFF) << 8;
                        int blue = (pixel[0] & 0xFF) << 16;
                        pixels[y * w + x] = alpha | red | green | blue;
                    }
                }
                blitTime = System.currentTimeMillis();
                X11.XWindowAttributes xwa = new X11.XWindowAttributes();
                x11.XGetWindowAttributes(dpy, win, xwa);
                X11.XImage image = x11.XCreateImage(dpy, xwa.visual, 32, X11.ZPixmap, 0, buffer, w, h, 32, w * 4);
                buffer.write(0, pixels, 0, pixels.length);
                write = System.currentTimeMillis();
                x11.XPutImage(dpy, win, gc, image, 0, 0, 0, 0, w, h);
                x11.XFree(image.getPointer());
                putImageTime = System.currentTimeMillis();
            } finally {
                if (gc != null)
                    x11.XFreeGC(dpy, gc);
            }
            long end = System.currentTimeMillis();
        //System.out.println("gc: " + (gcTime-start) + "ms");
        //System.out.println("blit: " + (blitTime-gcTime) + "ms");
        //System.out.println("write: " + (write-blitTime) + "ms");
        //System.out.println("put image: " + (putImageTime-write) + "ms");
        //System.out.println("total: " + (end-start) + "ms");
        }
    } finally {
        if (dpy != null)
            x11.XCloseDisplay(dpy);
    }
    if (a)
        WindowUtils.setWindowAlpha(alphaWindow, alpha);
    if (!alphaWindow.isVisible()) {
        alphaWindow.setVisible(true);
        // hack for initial refresh (X11)
        update(true, true);
    }
}

Example 2 with Raster

use of java.awt.image.Raster in project nutz by nutzam.

the class Images method readJpeg.

/**
     * 尝试读取JPEG文件的高级方法,可读取32位的jpeg文件
     * <p/>
     * 来自:
     * http://stackoverflow.com/questions/2408613/problem-reading-jpeg-image-
     * using-imageio-readfile-file
     * 
     */
private static BufferedImage readJpeg(InputStream in) throws IOException {
    Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("JPEG");
    ImageReader reader = null;
    while (readers.hasNext()) {
        reader = readers.next();
        if (reader.canReadRaster()) {
            break;
        }
    }
    if (reader == null)
        return null;
    ImageInputStream input = ImageIO.createImageInputStream(in);
    reader.setInput(input);
    // Read the image raster
    Raster raster = reader.readRaster(0, null);
    BufferedImage image = createJPEG4(raster);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    writeJpeg(image, out, 1);
    out.flush();
    return read(new ByteArrayInputStream(out.toByteArray()));
}

Example 3 with Raster

use of java.awt.image.Raster in project intellij-code-outline by sitano.

the class CodeOutlineImage method moveDataUp.

/**
     * Copies data between the given images, starting at the top of the images
     * and copying then moving downwards line by line. This method is
     * suitable for when the two given images are subimages of the same image,
     * and their data may overlap.
     *
     * @param from the source image
     * @param to the destination image
     */
private static void moveDataUp(BufferedImage from, BufferedImage to) {
    Raster raster = from.getRaster();
    WritableRaster outRaster = to.getRaster();
    int width = outRaster.getWidth();
    int height = Math.min(raster.getHeight(), outRaster.getHeight());
    int startX = outRaster.getMinX();
    int startY = outRaster.getMinY();
    Object tdata = null;
    for (int i = startY; i < startY + height; i++) {
        tdata = raster.getDataElements(raster.getMinX(), i, width, 1, tdata);
        outRaster.setDataElements(startX, i, width, 1, tdata);
    }
}

Example 4 with Raster

use of java.awt.image.Raster in project jdk8u_jdk by JetBrains.

the class WBMPPluginTest method compare.

private boolean compare(BufferedImage in, BufferedImage out) {
    int width = in.getWidth();
    int height = in.getHeight();
    if (out.getWidth() != width || out.getHeight() != height) {
        throw new RuntimeException("Dimensions changed!");
    }
    Raster oldras = in.getRaster();
    ColorModel oldcm = in.getColorModel();
    Raster newras = out.getRaster();
    ColorModel newcm = out.getColorModel();
    for (int j = 0; j < height; j++) {
        for (int i = 0; i < width; i++) {
            Object oldpixel = oldras.getDataElements(i, j, null);
            int oldrgb = oldcm.getRGB(oldpixel);
            int oldalpha = oldcm.getAlpha(oldpixel);
            Object newpixel = newras.getDataElements(i, j, null);
            int newrgb = newcm.getRGB(newpixel);
            int newalpha = newcm.getAlpha(newpixel);
            if (newrgb != oldrgb || newalpha != oldalpha) {
                throw new RuntimeException("Pixels differ at " + i + ", " + j);
            }
        }
    }
    return true;
}

Example 5 with Raster

use of java.awt.image.Raster in project jdk8u_jdk by JetBrains.

the class BMPWriteParamTest method compare.

private static boolean compare(final BufferedImage in, final BufferedImage out) {
    final int width = in.getWidth();
    int height = in.getHeight();
    if (out.getWidth() != width || out.getHeight() != height) {
        throw new RuntimeException("Dimensions changed!");
    }
    Raster oldras = in.getRaster();
    ColorModel oldcm = in.getColorModel();
    Raster newras = out.getRaster();
    ColorModel newcm = out.getColorModel();
    for (int j = 0; j < height; j++) {
        for (int i = 0; i < width; i++) {
            Object oldpixel = oldras.getDataElements(i, j, null);
            int oldrgb = oldcm.getRGB(oldpixel);
            int oldalpha = oldcm.getAlpha(oldpixel);
            Object newpixel = newras.getDataElements(i, j, null);
            int newrgb = newcm.getRGB(newpixel);
            int newalpha = newcm.getAlpha(newpixel);
            if (newrgb != oldrgb || newalpha != oldalpha) {
                // showDiff(in, out);
                throw new RuntimeException("Pixels differ at " + i + ", " + j + " new = " + Integer.toHexString(newrgb) + " old = " + Integer.toHexString(oldrgb));
            }
        }
    }
    return true;
}