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 FloatBuffer makeFloatBufferFromArray(float[] arr) {
    ByteBuffer bb = ByteBuffer.allocateDirect(arr.length * 4);
    bb.order(ByteOrder.nativeOrder());
    FloatBuffer fb = bb.asFloatBuffer();
    fb.put(arr);//from   w  w w  .  j  a  v a  2s  .  c  om
    fb.position(0);
    return fb;
}

From source file:Main.java

public static IntBuffer intArrayToBuffer(int[] intArray) {
    ByteBuffer byteBuffer = ByteBuffer.allocateDirect(intArray.length * 4);
    byteBuffer.order(ByteOrder.nativeOrder());
    IntBuffer intBuffer = byteBuffer.asIntBuffer();
    intBuffer.put(intArray);/*from w  w  w .  ja  v a 2  s . c o m*/
    intBuffer.position(0);
    return intBuffer;
}

From source file:Main.java

public static ShortBuffer buildShortBuffer(short[] array) {
    ByteBuffer byteBuf = ByteBuffer.allocateDirect(array.length * 2);
    byteBuf.order(ByteOrder.nativeOrder());
    ShortBuffer buffer = byteBuf.asShortBuffer();
    buffer.put(array);//from w  w  w . j  a  v  a 2 s .c  o  m
    buffer.position(0);
    return buffer;
}

From source file:Main.java

public static FloatBuffer getBufferFromFloatArray(float[] array) {
    FloatBuffer result = ByteBuffer.allocateDirect(array.length * 4).order(ByteOrder.nativeOrder())
            .asFloatBuffer();/*from   w w  w.  java2s .c  om*/
    result.put(array).position(0);
    return result;
}

From source file:Main.java

public static FloatBuffer floatArrayToBuffer(float[] floatArray) {
    ByteBuffer byteBuffer = ByteBuffer.allocateDirect(floatArray.length * 4);
    byteBuffer.order(ByteOrder.nativeOrder());
    FloatBuffer floatBuffer = byteBuffer.asFloatBuffer();
    floatBuffer.put(floatArray);//w ww. j a va  2s.c  o  m
    floatBuffer.position(0);
    return floatBuffer;
}

From source file:Main.java

private static IntBuffer newIntBuffer(int size) {
    ByteBuffer buffer = ByteBuffer.allocateDirect(size);
    buffer.order(ByteOrder.LITTLE_ENDIAN);
    return buffer.asIntBuffer();
}

From source file:Main.java

public static IntBuffer makeBuffer(int[] data) {
    ByteBuffer b = ByteBuffer.allocateDirect(data.length * 4);
    b.order(ByteOrder.nativeOrder());
    IntBuffer buffer = b.asIntBuffer();
    buffer.put(data);/*from ww  w .j a va2  s .  c  o  m*/
    buffer.position(0);
    return buffer;
}

From source file:Main.java

public static FloatBuffer float2Buffer(float[] a) {
    FloatBuffer floatBuffer;/*from ww w.j  a  v  a 2 s .  c  o m*/
    ByteBuffer bb = ByteBuffer.allocateDirect(a.length * 4);
    bb.order(ByteOrder.nativeOrder());
    floatBuffer = bb.asFloatBuffer();
    floatBuffer.put(a);
    floatBuffer.position(0);
    return floatBuffer;
}

From source file:Main.java

public static ShortBuffer shortToBuffer(short[] a) {
    ShortBuffer shortBuffer;//from  w w  w.j  ava2  s. c o  m
    ByteBuffer ibb = ByteBuffer.allocateDirect(a.length * 2);
    ibb.order(ByteOrder.nativeOrder());
    shortBuffer = ibb.asShortBuffer();
    shortBuffer.put(a);
    shortBuffer.position(0);
    return shortBuffer;
}

From source file:Main.java

public static ByteBuffer makeByteBuffer(byte[] array)
/*     */ {/*from   ww w .  j  ava  2s. c o  m*/
    /*  63 */int SIZE = 1;
    /*  64 */ByteBuffer byteBuffer = ByteBuffer.allocateDirect(array.length * 1);
    /*  65 */byteBuffer.order(ByteOrder.nativeOrder());
    /*  66 */byteBuffer.put(array);
    /*  67 */byteBuffer.position(0);
    /*  68 */return byteBuffer;
    /*     */}