Example usage for java.nio IntBuffer get

Introduction

In this page you can find the example usage for java.nio IntBuffer get.

Prototype

public abstract int get();

Source Link

Document

Returns the int at the current position and increases the position by 1.

Usage

From source file:Main.java

public static void main(String[] args) {
    IntBuffer bb = IntBuffer.allocate(10);
    bb.put(100);/*from  ww w  .  j  a  v a 2  s .c  o m*/

    bb.rewind();
    System.out.println(bb.get());

}

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From source file:MainClass.java

public static void main(String[] args) throws IOException {
    FileChannel fc = new FileInputStream(new File("temp.tmp")).getChannel();
    IntBuffer ib = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size()).asIntBuffer();
    while (ib.hasRemaining())
        ib.get();
    fc.close();//from w  w  w. ja v  a  2s  . co m
}

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From source file:MainClass.java

public static void main(String[] args) throws Exception {
    int port = 1919;

    SocketAddress address = new InetSocketAddress("127.0.0.1", port);
    SocketChannel client = SocketChannel.open(address);
    ByteBuffer buffer = ByteBuffer.allocate(4);
    IntBuffer view = buffer.asIntBuffer();

    for (int expected = 0;; expected++) {
        client.read(buffer);/*from  w ww . j av a 2s .c o m*/
        int actual = view.get();
        buffer.clear();
        view.rewind();

        if (actual != expected) {
            System.err.println("Expected " + expected + "; was " + actual);
            break;
        }
        System.out.println(actual);
    }
}

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From source file:MainClass.java

public static void main(String[] args) {
    ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, 'a' });
    bb.rewind();//from  w  ww.  j a v a2s .  co m
    IntBuffer ib = ((ByteBuffer) bb.rewind()).asIntBuffer();
    System.out.println("Int Buffer");
    while (ib.hasRemaining())
        System.out.println(ib.position() + " -> " + ib.get());

}

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From source file:Main.java

public static void main(String[] args) {
    ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, 'a' });
    bb.rewind();/*from w  ww . java2s .c  o m*/
    System.out.println("Byte Buffer");
    while (bb.hasRemaining())
        System.out.println(bb.position() + " -> " + bb.get());
    CharBuffer cb = ((ByteBuffer) bb.rewind()).asCharBuffer();
    System.out.println("Char Buffer");
    while (cb.hasRemaining())
        System.out.println(cb.position() + " -> " + cb.get());
    FloatBuffer fb = ((ByteBuffer) bb.rewind()).asFloatBuffer();
    System.out.println("Float Buffer");
    while (fb.hasRemaining())
        System.out.println(fb.position() + " -> " + fb.get());
    IntBuffer ib = ((ByteBuffer) bb.rewind()).asIntBuffer();
    System.out.println("Int Buffer");
    while (ib.hasRemaining())
        System.out.println(ib.position() + " -> " + ib.get());
    LongBuffer lb = ((ByteBuffer) bb.rewind()).asLongBuffer();
    System.out.println("Long Buffer");
    while (lb.hasRemaining())
        System.out.println(lb.position() + " -> " + lb.get());
    ShortBuffer sb = ((ByteBuffer) bb.rewind()).asShortBuffer();
    System.out.println("Short Buffer");
    while (sb.hasRemaining())
        System.out.println(sb.position() + " -> " + sb.get());
    DoubleBuffer db = ((ByteBuffer) bb.rewind()).asDoubleBuffer();
    System.out.println("Double Buffer");
    while (db.hasRemaining())
        System.out.println(db.position() + " -> " + db.get());
}

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From source file:Main.java

/**
 * Create a new int[] array and populate it with the given IntBuffer's
 * contents./*from w  ww  . j  ava  2s. c  om*/
 * 
 * @param buff
 *            the IntBuffer to read from
 * @return a new int array populated from the IntBuffer
 */
public static int[] getIntArray(IntBuffer buff) {
    if (buff == null) {
        return null;
    }
    buff.clear();
    int[] inds = new int[buff.limit()];
    for (int x = 0; x < inds.length; x++) {
        inds[x] = buff.get();
    }
    return inds;
}

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From source file:Main.java

private static String formatInts(byte[] data) {
    IntBuffer bb = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN).asIntBuffer();

    StringBuilder sb = new StringBuilder(bb.capacity() * 3);

    while (bb.remaining() > 0) {
        sb.append(bb.get());
        sb.append(',');
        sb.append('\n');
    }/*  ww  w . j a v a 2  s.  c  o  m*/

    return sb.toString();
}

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From source file:Main.java

public static int[] getIntArray(final IntBuffer buff) {
    if (buff == null) {
        return null;
    }//from w w w. j  a va 2  s  . c om
    buff.rewind();
    final int[] inds = new int[buff.limit()];
    for (int x = 0; x < inds.length; x++) {
        inds[x] = buff.get();
    }
    return inds;
}

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From source file:org.jcodec.codecs.mjpeg.JpegDecoder.java

private static void decodeBlock(MCU block, QuantTable qLum, QuantTable qChrom) {

    zigzagDecodeAll(block.lum.data);//from   www . j av  a  2s  .  co  m
    zigzagDecodeAll(block.cb.data);
    zigzagDecodeAll(block.cr.data);

    dequantAll(block.lum.data, qLum);
    dequantAll(block.cb.data, qChrom);
    dequantAll(block.cr.data, qChrom);

    dct.decodeAll(block.lum.data);
    dct.decodeAll(block.cb.data);
    dct.decodeAll(block.cr.data);

    IntBuffer rgb = block.getRgb24();
    IntBuffer Cb = IntBuffer.wrap(block.cb.data[0]);
    IntBuffer Cr = IntBuffer.wrap(block.cr.data[0]);
    if (block.is420()) {
        IntBuffer y00 = IntBuffer.wrap(block.lum.data[0]);
        IntBuffer y01 = IntBuffer.wrap(block.lum.data[1]);
        IntBuffer y10 = IntBuffer.wrap(block.lum.data[2]);
        IntBuffer y11 = IntBuffer.wrap(block.lum.data[3]);

        for (int j = 0; j < 8; j++) {
            Cb.position((j & ~1) << 2);
            Cr.position((j & ~1) << 2);
            lineToRgb(y00, Cb, Cr, rgb);
            lineToRgb(y01, Cb, Cr, rgb);
        }
        for (int j = 8; j < 16; j++) {
            Cb.position((j & ~1) << 2);
            Cr.position((j & ~1) << 2);
            lineToRgb(y10, Cb, Cr, rgb);
            lineToRgb(y11, Cb, Cr, rgb);
        }
    } else if (block.is422()) {
        IntBuffer y00 = IntBuffer.wrap(block.lum.data[0]);
        IntBuffer y01 = IntBuffer.wrap(block.lum.data[1]);
        for (int j = 0; j < 8; j++) {
            Cb.position(j << 3);
            Cr.position(j << 3);
            lineToRgb(y00, Cb, Cr, rgb);
            lineToRgb(y01, Cb, Cr, rgb);
        }
    } else if (block.is444()) {
        IntBuffer Y = IntBuffer.wrap(block.lum.data[0]);
        while (rgb.hasRemaining()) {
            rgb.put(ImageConvert.ycbcr_to_rgb24(Y.get(), Cb.get(), Cr.get()));
        }
    } else {
        throw new IllegalStateException("unsupported MCU");
    }

}

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From source file:org.jcodec.codecs.mjpeg.JpegDecoder.java

private static void lineToRgb(IntBuffer Y, IntBuffer Cb, IntBuffer Cr, IntBuffer rgb) {
    for (int i = 0; i < 8; i++) {
        Cb.position(Cb.position() - (i & 1));
        Cr.position(Cr.position() - (i & 1));
        int y = Y.get();
        int cb = Cb.get();
        int cr = Cr.get();
        rgb.put(ImageConvert.ycbcr_to_rgb24(y, cb, cr));
    }//from   w  w w . j av a 2  s .com
}

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