java.awt.image.IndexColorModel#isAlphaPremultiplied()源码实例Demo

下面列出了java.awt.image.IndexColorModel#isAlphaPremultiplied() 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： dragonwell8_jdk 文件： ICMColorDataTest.java

private static void makeImage() {
    int scanLineBytes = WIDTH / PIXELS_IN_BYTE;
    if ((WIDTH & (PIXELS_IN_BYTE - 1)) != 0) {
        // Make sure all the pixels in a scan line fit
        scanLineBytes += 1;
    }

    byte[]     bits    = new byte[scanLineBytes * HEIGHT];
    DataBuffer dataBuf = new DataBufferByte(bits, bits.length, 0);
    SampleModel sampleModel = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
                                                              WIDTH, HEIGHT, BITS_PER_PIXEL);
    WritableRaster raster = Raster.createWritableRaster(sampleModel, dataBuf, null);
    IndexColorModel indexModel = new IndexColorModel(2, 2, RED, GREEN, BLUE);
    BufferedImage bufImage = new BufferedImage(indexModel, raster,
                                               indexModel.isAlphaPremultiplied(), null);

    Graphics g = bufImage.getGraphics();
    g.drawRect(0, 0, WIDTH - 1, HEIGHT - 1);
    g.dispose();
}

源代码2 项目： TencentKona-8 文件： ICMColorDataTest.java

private static void makeImage() {
    int scanLineBytes = WIDTH / PIXELS_IN_BYTE;
    if ((WIDTH & (PIXELS_IN_BYTE - 1)) != 0) {
        // Make sure all the pixels in a scan line fit
        scanLineBytes += 1;
    }

    byte[]     bits    = new byte[scanLineBytes * HEIGHT];
    DataBuffer dataBuf = new DataBufferByte(bits, bits.length, 0);
    SampleModel sampleModel = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
                                                              WIDTH, HEIGHT, BITS_PER_PIXEL);
    WritableRaster raster = Raster.createWritableRaster(sampleModel, dataBuf, null);
    IndexColorModel indexModel = new IndexColorModel(2, 2, RED, GREEN, BLUE);
    BufferedImage bufImage = new BufferedImage(indexModel, raster,
                                               indexModel.isAlphaPremultiplied(), null);

    Graphics g = bufImage.getGraphics();
    g.drawRect(0, 0, WIDTH - 1, HEIGHT - 1);
    g.dispose();
}

源代码3 项目： openjdk-jdk8u 文件： ICMColorDataTest.java

private static void makeImage() {
    int scanLineBytes = WIDTH / PIXELS_IN_BYTE;
    if ((WIDTH & (PIXELS_IN_BYTE - 1)) != 0) {
        // Make sure all the pixels in a scan line fit
        scanLineBytes += 1;
    }

    byte[]     bits    = new byte[scanLineBytes * HEIGHT];
    DataBuffer dataBuf = new DataBufferByte(bits, bits.length, 0);
    SampleModel sampleModel = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
                                                              WIDTH, HEIGHT, BITS_PER_PIXEL);
    WritableRaster raster = Raster.createWritableRaster(sampleModel, dataBuf, null);
    IndexColorModel indexModel = new IndexColorModel(2, 2, RED, GREEN, BLUE);
    BufferedImage bufImage = new BufferedImage(indexModel, raster,
                                               indexModel.isAlphaPremultiplied(), null);

    Graphics g = bufImage.getGraphics();
    g.drawRect(0, 0, WIDTH - 1, HEIGHT - 1);
    g.dispose();
}

源代码4 项目： openjdk-jdk9 文件： HeadlessIndexColorModel.java

public static void main(String args[]) {
    IndexColorModel cm =
            new IndexColorModel(8, 1, new byte[]{(byte) 128}, new byte[]{(byte) 128}, new byte[]{(byte) 128});
    cm.getTransparency();
    cm.getComponentSize();
    cm.isAlphaPremultiplied();
    cm.hasAlpha();
    cm.isAlphaPremultiplied();
    cm.getTransferType();
    cm.getPixelSize();
    cm.getComponentSize();
    cm.getNumComponents();
    cm.getNumColorComponents();
    cm.getRed(20);
    cm.getGreen(20);
    cm.getBlue(20);
    cm.getAlpha(20);
    cm.getRGB(20);
    cm.isAlphaPremultiplied();
}

源代码5 项目： jdk8u_jdk 文件： ICMColorDataTest.java

private static void makeImage() {
    int scanLineBytes = WIDTH / PIXELS_IN_BYTE;
    if ((WIDTH & (PIXELS_IN_BYTE - 1)) != 0) {
        // Make sure all the pixels in a scan line fit
        scanLineBytes += 1;
    }

    byte[]     bits    = new byte[scanLineBytes * HEIGHT];
    DataBuffer dataBuf = new DataBufferByte(bits, bits.length, 0);
    SampleModel sampleModel = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
                                                              WIDTH, HEIGHT, BITS_PER_PIXEL);
    WritableRaster raster = Raster.createWritableRaster(sampleModel, dataBuf, null);
    IndexColorModel indexModel = new IndexColorModel(2, 2, RED, GREEN, BLUE);
    BufferedImage bufImage = new BufferedImage(indexModel, raster,
                                               indexModel.isAlphaPremultiplied(), null);

    Graphics g = bufImage.getGraphics();
    g.drawRect(0, 0, WIDTH - 1, HEIGHT - 1);
    g.dispose();
}

源代码6 项目： commons-imaging 文件： WbmpImageParser.java

private BufferedImage readImage(final WbmpHeader wbmpHeader, final InputStream is)
        throws IOException {
    final int rowLength = (wbmpHeader.width + 7) / 8;
    final byte[] image = readBytes("Pixels", is,
            rowLength * wbmpHeader.height, "Error reading image pixels");
    final DataBufferByte dataBuffer = new DataBufferByte(image, image.length);
    final WritableRaster raster = Raster.createPackedRaster(dataBuffer,
            wbmpHeader.width, wbmpHeader.height, 1, null);
    final int[] palette = { 0x000000, 0xffffff };
    final IndexColorModel colorModel = new IndexColorModel(1, 2, palette, 0,
            false, -1, DataBuffer.TYPE_BYTE);
    return new BufferedImage(colorModel, raster,
            colorModel.isAlphaPremultiplied(), new Properties());
}

方法所在类

java.awt.image.IndexColorModel