Android FloatBuffer Create makeFloatBuffer(int length)

Description

make Float Buffer

License

Apache License

Declaration

public static FloatBuffer makeFloatBuffer(int length) 

Method Source Code

//package com.java2s;
/*/*w  ww. j av  a2 s.c  om*/
 * PanoramaGL library
 * Version 0.2 beta
 * Copyright (c) 2010 Javier Baez <javbaezga@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;

public class Main {
    public static FloatBuffer makeFloatBuffer(int length) {
        final int floatSize = Float.SIZE / 8;
        ByteBuffer byteBuffer = ByteBuffer.allocateDirect(length
                * floatSize);
        byteBuffer.order(ByteOrder.nativeOrder());
        FloatBuffer floatBuffer = byteBuffer.asFloatBuffer();
        floatBuffer.position(0);
        return floatBuffer;
    }

    public static FloatBuffer makeFloatBuffer(float[] array) {
        final int floatSize = Float.SIZE / 8;
        ByteBuffer byteBuffer = ByteBuffer.allocateDirect(array.length
                * floatSize);
        byteBuffer.order(ByteOrder.nativeOrder());
        FloatBuffer floatBuffer = byteBuffer.asFloatBuffer();
        floatBuffer.put(array);
        floatBuffer.position(0);
        return floatBuffer;
    }

    public static FloatBuffer makeFloatBuffer(float[][] array, int rows,
            int cols) {
        float[] result = new float[rows * cols];
        for (int i = 0, k = 0; i < rows; i++)
            for (int j = 0; j < cols; j++)
                result[k++] = array[i][j];
        return makeFloatBuffer(result);
    }
}

Related

1. buildFloatBuffer(float[] buffer)
2. asFloatBuffer(float[] array)
3. wrap(float[] buffer)
4. makeFloatBuffer(float[] array)
5. makeFloatBuffer(float[][] array, int rows, int cols)
6. ConvToFloatBuffer(float buf[])
7. ConvToFloatBuffer(float buf[])
8. makeFloatBuffer(float[] arr)
9. makeFloatBuffer(float[] i_arr)