Example usage for java.nio ByteBuffer allocateDirect

Introduction

In this page you can find the example usage for java.nio ByteBuffer allocateDirect.

Prototype

public static ByteBuffer allocateDirect(int capacity)

Source Link

Document

Creates a direct byte buffer based on a newly allocated memory block.

Usage

From source file:Main.java

public static IntBuffer transportArrayToNativeBuffer(int[] iArray) {
    ByteBuffer byteBuffer = ByteBuffer.allocateDirect(iArray.length * 4);
    byteBuffer.order(ByteOrder.nativeOrder());
    return (IntBuffer) byteBuffer.asIntBuffer().put(iArray).position(0);
}

From source file:Main.java

public static IntBuffer createIntBuffer(int count) {
    ByteBuffer data = ByteBuffer.allocateDirect(count * 4);
    data.order(ByteOrder.nativeOrder());
    IntBuffer p1 = data.asIntBuffer();
    return p1;/*  www.ja  v  a  2s.c  o  m*/
}

From source file:Main.java

public static FloatBuffer createFloatBuffer(float[] coords) {
    // Allocate a direct ByteBuffer, using 4 bytes per float, and copy coords into it.
    ByteBuffer bb = ByteBuffer.allocateDirect(coords.length * 4);
    bb.order(ByteOrder.nativeOrder());
    FloatBuffer fb = bb.asFloatBuffer();
    fb.put(coords);//from   w  w  w  .  j  a va 2s .co  m
    fb.position(0);
    return fb;
}

From source file:Main.java

/**
 * Make a FloatBuffer from an array of floats
 * //from   w  w w . j  a va 2 s.co m
 * @param f
 *            The array
 * @return the FloatBuffer
 */
public static FloatBuffer makeFloatBuffer(float[] f) {
    ByteBuffer bytBuffer = ByteBuffer.allocateDirect(f.length * 4);
    bytBuffer.order(ByteOrder.nativeOrder());

    FloatBuffer floatBuffer = bytBuffer.asFloatBuffer();
    floatBuffer.put(f);
    floatBuffer.position(0);

    return floatBuffer;
}

From source file:Main.java

public static IntBuffer allocateInttBuffer(int capacity) {
    final ByteBuffer vbb = ByteBuffer.allocateDirect(capacity);
    vbb.order(ByteOrder.nativeOrder());
    return vbb.asIntBuffer();
}

From source file:Main.java

public static FloatBuffer allocateFloatBuffer(int capacity) {
    final ByteBuffer vbb = ByteBuffer.allocateDirect(capacity);
    vbb.order(ByteOrder.nativeOrder());
    return vbb.asFloatBuffer();
}

From source file:Main.java

public static ShortBuffer allocateShortBuffer(int capacity) {
    final ByteBuffer vbb = ByteBuffer.allocateDirect(capacity);
    vbb.order(ByteOrder.nativeOrder());
    return vbb.asShortBuffer();
}

From source file:Main.java

public static ShortBuffer toShortBuffer(short[] values) {
    final ByteBuffer vbb = ByteBuffer.allocateDirect(values.length * 2);
    vbb.order(ByteOrder.nativeOrder());
    final ShortBuffer buffer = vbb.asShortBuffer();
    buffer.put(values);//  ww  w .j  av  a2  s . c  o m
    buffer.position(0);
    return buffer;
}

From source file:Main.java

public static IntBuffer allocateInttBuffer(int capacity) {
    ByteBuffer vbb = ByteBuffer.allocateDirect(capacity);
    vbb.order(ByteOrder.nativeOrder());
    return vbb.asIntBuffer();
}

From source file:Main.java

public static FloatBuffer allocateFloatBuffer(int capacity) {
    ByteBuffer vbb = ByteBuffer.allocateDirect(capacity);
    vbb.order(ByteOrder.nativeOrder());
    return vbb.asFloatBuffer();
}