Java ColorModel.getRGBdefault方法代碼示例

import java.awt.image.ColorModel; //導入方法依賴的package包/類
public static void main(String[] args) {
    SimpleColorModel scm1 = new SimpleColorModel(3);
    SimpleColorModel scm2 = new SimpleColorModel(3);
    SimpleColorModel scm3 = new SimpleColorModel(8);
    ColorModel rgbcm = ColorModel.getRGBdefault();

    try {
        if (scm1.equals(scm2)) {
            throw new RuntimeException("Test 1 failed: " +
                                       "scm1 should not equal scm2");
        }

        if (scm1.equals(scm3)) {
            throw new RuntimeException("Test 2 failed: " +
                                       "scm1 should not equal scm3");
        }

        if (scm1.equals(rgbcm) || rgbcm.equals(scm1)) {
            throw new RuntimeException("Test 3 failed: " +
                                       "scm1 should not equal rgbcm");
        }
    } catch (Exception e) {
        throw new RuntimeException("Test failed: " + e);
    }
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
/**
 * Converts raw data into JPG image and encode it into Base64 string for sending it to the JS client
 * 
 * @param rawImg
 *            raw image bytes
 * @return Base64 encoded string with JPG image
 */
private String bufferAsJpgString(byte[] rawImg) {
    int[] pixels = new int[rawImg.length];
    for (int i = 0; i < rawImg.length; i++) {
        pixels[i] = (int) rawImg[i];
    }
    DataBufferInt buffer = new DataBufferInt(pixels, pixels.length);
    WritableRaster raster = Raster.createPackedRaster(buffer, IMG_SIZE, IMG_SIZE, IMG_SIZE, BAND_MASKS, null);
    ColorModel cm = ColorModel.getRGBdefault();
    BufferedImage image = new BufferedImage(cm, raster, cm.isAlphaPremultiplied(), null);

    byte[] imgBytes = null;
    try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
        ImageIO.write(image, "JPG", baos);
        baos.flush();
        imgBytes = baos.toByteArray();
    } catch (IOException e) {
        // TODO log exception
    }

    byte[] encoded = Base64.getEncoder().encode(imgBytes);
    return new String(encoded);
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
/**
 * Returns the color model associated with this configuration that
 * supports the specified transparency.
 */
public ColorModel getColorModel(int transparency) {
    switch (transparency) {
    case Transparency.OPAQUE:
        return getColorModel();
    case Transparency.BITMASK:
        return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
    case Transparency.TRANSLUCENT:
        return ColorModel.getRGBdefault();
    default:
        return null;
    }
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
public static void main(String[] args) throws IIOInvalidTreeException {

        // getting the writer for the png format
        Iterator iter = ImageIO.getImageWritersByFormatName("png");
        ImageWriter writer = (ImageWriter) iter.next();

        // creating a color model
        ColorModel colorModel = ColorModel.getRGBdefault();

        // creating a sample model
        SampleModel sampleModel = colorModel.createCompatibleSampleModel(640, 480);

        // creating a default metadata object
        IIOMetadata metaData = writer.getDefaultImageMetadata(new ImageTypeSpecifier(colorModel, sampleModel), null);
        String formatName = metaData.getNativeMetadataFormatName();

        // first call
        Node metaDataNode = metaData.getAsTree(formatName);
        try {
            metaData.setFromTree(formatName, metaDataNode);
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        // second call (bitdepht is already set to an invalid value)
        metaDataNode = metaData.getAsTree(formatName);

        metaData.setFromTree(formatName, metaDataNode);

    }
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
/**
 * Gets the instance of <code>ColorModel</code> used to display
 * the component on the output device.
 * @return the color model used by this component
 * @see java.awt.image.ColorModel
 * @see java.awt.peer.ComponentPeer#getColorModel()
 * @see Toolkit#getColorModel()
 * @since JDK1.0
 */
public ColorModel getColorModel() {
    ComponentPeer peer = this.peer;
    if ((peer != null) && ! (peer instanceof LightweightPeer)) {
        return peer.getColorModel();
    } else if (GraphicsEnvironment.isHeadless()) {
        return ColorModel.getRGBdefault();
    } // else
    return getToolkit().getColorModel();
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
public TestSurfaceData(int width, int height, double scale) {
    super(StateTrackable.State.DYNAMIC, SurfaceType.Custom, ColorModel.getRGBdefault());
    this.scale = scale;
    gc = new TestGraphicsConfig(scale);
    this.width = (int) Math.ceil(scale * width);
    this.height = (int) Math.ceil(scale * height);
    buffImage = new BufferedImage(this.width, this.height,
            BufferedImage.TYPE_INT_RGB);
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
void createBufferedImage() {
    // REMIND:  Be careful!  Is this called everytime there is a
    // startProduction?  We only want to call it if it is new or
    // there is an error
    isDefaultBI = false;
    try {
        biRaster = cmodel.createCompatibleWritableRaster(width, height);
        bimage = createImage(cmodel, biRaster,
                             cmodel.isAlphaPremultiplied(), null);
    } catch (Exception e) {
        // Create a default image
        cmodel = ColorModel.getRGBdefault();
        biRaster = cmodel.createCompatibleWritableRaster(width, height);
        bimage = createImage(cmodel, biRaster, false, null);
    }
    int type = bimage.getType();

    if ((cmodel == ColorModel.getRGBdefault()) ||
           (type == BufferedImage.TYPE_INT_RGB) ||
           (type == BufferedImage.TYPE_INT_ARGB_PRE)) {
        isDefaultBI = true;
    }
    else if (cmodel instanceof DirectColorModel) {
        DirectColorModel dcm = (DirectColorModel) cmodel;
        if (dcm.getRedMask() == 0xff0000 &&
            dcm.getGreenMask() == 0xff00 &&
            dcm.getBlueMask()  == 0xff) {
            isDefaultBI = true;
        }
    }
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
public RotateFilter(double angle) {
  this.angle = angle * (Math.PI / 180);
  cos = Math.cos(this.angle);
  sin = Math.sin(this.angle);
  defaultRGBModel = ColorModel.getRGBdefault();
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
private NullSurfaceData() {
    super(State.IMMUTABLE, SurfaceType.Any, ColorModel.getRGBdefault());
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
protected ImageRepresentation makeImageRep() {
    return new ImageRepresentation(this, ColorModel.getRGBdefault(),
                                   false);
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
private void convertToRGB() {
    int w = bimage.getWidth();
    int h = bimage.getHeight();
    int size = w*h;

    DataBufferInt dbi = new DataBufferInt(size);
    // Note that stealData() requires a markDirty() afterwards
    // since we modify the data in it.
    int newpixels[] = SunWritableRaster.stealData(dbi, 0);
    if (cmodel instanceof IndexColorModel &&
        biRaster instanceof ByteComponentRaster &&
        biRaster.getNumDataElements() == 1)
    {
        ByteComponentRaster bct = (ByteComponentRaster) biRaster;
        byte[] data = bct.getDataStorage();
        int coff = bct.getDataOffset(0);
        for (int i=0; i < size; i++) {
            newpixels[i] = srcLUT[data[coff+i]&0xff];
        }
    }
    else {
        Object srcpixels = null;
        int off=0;
        for (int y=0; y < h; y++) {
            for (int x=0; x < w; x++) {
                srcpixels=biRaster.getDataElements(x, y, srcpixels);
                newpixels[off++] = cmodel.getRGB(srcpixels);
            }
        }
    }
    // We modified the data array directly above so mark it as dirty now...
    SunWritableRaster.markDirty(dbi);

    isSameCM = false;
    cmodel = ColorModel.getRGBdefault();

    int bandMasks[] = {0x00ff0000,
                       0x0000ff00,
                       0x000000ff,
                       0xff000000};

    biRaster = Raster.createPackedRaster(dbi,w,h,w,
                                         bandMasks,null);

    bimage = createImage(cmodel, biRaster,
                         cmodel.isAlphaPremultiplied(), null);
    srcLUT = null;
    isDefaultBI = true;
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
/**
 * The runnable method for this class. This will produce an image using
 * the current RenderableImage and RenderContext and send it to all the
 * ImageConsumer currently registered with this class.
 */
public void run() {
    // First get the rendered image
    RenderedImage rdrdImage;
    if (rc != null) {
        rdrdImage = rdblImage.createRendering(rc);
    } else {
        rdrdImage = rdblImage.createDefaultRendering();
    }

    // And its ColorModel
    ColorModel colorModel = rdrdImage.getColorModel();
    Raster raster = rdrdImage.getData();
    SampleModel sampleModel = raster.getSampleModel();
    DataBuffer dataBuffer = raster.getDataBuffer();

    if (colorModel == null) {
        colorModel = ColorModel.getRGBdefault();
    }
    int minX = raster.getMinX();
    int minY = raster.getMinY();
    int width = raster.getWidth();
    int height = raster.getHeight();

    Enumeration<ImageConsumer> icList;
    ImageConsumer ic;
    // Set up the ImageConsumers
    icList = ics.elements();
    while (icList.hasMoreElements()) {
        ic = icList.nextElement();
        ic.setDimensions(width,height);
        ic.setHints(ImageConsumer.TOPDOWNLEFTRIGHT |
                    ImageConsumer.COMPLETESCANLINES |
                    ImageConsumer.SINGLEPASS |
                    ImageConsumer.SINGLEFRAME);
    }

    // Get RGB pixels from the raster scanline by scanline and
    // send to consumers.
    int pix[] = new int[width];
    int i,j;
    int numBands = sampleModel.getNumBands();
    int tmpPixel[] = new int[numBands];
    for (j = 0; j < height; j++) {
        for(i = 0; i < width; i++) {
            sampleModel.getPixel(i, j, tmpPixel, dataBuffer);
            pix[i] = colorModel.getDataElement(tmpPixel, 0);
        }
        // Now send the scanline to the Consumers
        icList = ics.elements();
        while (icList.hasMoreElements()) {
            ic = icList.nextElement();
            ic.setPixels(0, j, width, 1, colorModel, pix, 0, width);
        }
    }

    // Now tell the consumers we're done.
    icList = ics.elements();
    while (icList.hasMoreElements()) {
        ic = icList.nextElement();
        ic.imageComplete(ImageConsumer.STATICIMAGEDONE);
    }
}
 

import java.awt.image.ColorModel; //導入方法依賴的package包/類
/**
 * Create a PixelGrabber object to grab the (x, y, w, h) rectangular
 * section of pixels from the image produced by the specified
 * ImageProducer into the given array.
 * The pixels are stored into the array in the default RGB ColorModel.
 * The RGB data for pixel (i, j) where (i, j) is inside the rectangle
 * (x, y, w, h) is stored in the array at
 * {@code pix[(j - y) * scansize + (i - x) + off]}.
 * @param ip the {@code ImageProducer} that produces the
 * image from which to retrieve pixels
 * @param x the x coordinate of the upper left corner of the rectangle
 * of pixels to retrieve from the image, relative to the default
 * (unscaled) size of the image
 * @param y the y coordinate of the upper left corner of the rectangle
 * of pixels to retrieve from the image
 * @param w the width of the rectangle of pixels to retrieve
 * @param h the height of the rectangle of pixels to retrieve
 * @param pix the array of integers which are to be used to hold the
 * RGB pixels retrieved from the image
 * @param off the offset into the array of where to store the first pixel
 * @param scansize the distance from one row of pixels to the next in
 * the array
 * @see ColorModel#getRGBdefault
 */
public PixelGrabber(ImageProducer ip, int x, int y, int w, int h,
                    int[] pix, int off, int scansize) {
    producer = ip;
    dstX = x;
    dstY = y;
    dstW = w;
    dstH = h;
    dstOff = off;
    dstScan = scansize;
    intPixels = pix;
    imageModel = ColorModel.getRGBdefault();
}