Android FloatBuffer Create createDirectFloatBuffer( final int capacity, final FloatBuffer previous)

Description

create Direct Float Buffer

License

Apache License

Declaration

public static final FloatBuffer createDirectFloatBuffer(
            final int capacity, final FloatBuffer previous) 

Method Source Code

//package com.java2s;
/*/* w  w  w  .  ja  v  a 2  s . c o m*/
 * Copyright (C) 2010 Lance Nanek
 *
 * 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 final int BYTES_PER_FLOAT = Float.SIZE / Byte.SIZE;

    public static final FloatBuffer createDirectFloatBuffer(
            final int capacity) {
        return createDirectByteBuffer(capacity * BYTES_PER_FLOAT)
                .asFloatBuffer();
    }

    public static final FloatBuffer createDirectFloatBuffer(
            final int capacity, final FloatBuffer previous) {
        final FloatBuffer created = createDirectFloatBuffer(capacity);

        if (null != previous) {
            previous.flip();
            created.put(previous);
        }

        return created;
    }

    public static final ByteBuffer createDirectByteBuffer(final int capacity) {
        return ByteBuffer.allocateDirect(capacity).order(
                ByteOrder.nativeOrder());
    }

    public static final ByteBuffer createDirectByteBuffer(
            final int capacity, final ByteBuffer previous) {
        final ByteBuffer created = createDirectByteBuffer(capacity);

        if (null != previous) {
            previous.flip();
            created.put(previous);
        }

        return created;
    }
}

Related

1. createFloatBuffer(int nElements, int stride)
2. createFloatBuffer(int size)
3. createFloatBuffer(int size)
4. createFloatBuffer(int size)
5. createDirectFloatBuffer( final int capacity)
6. makeFloatBuffer(float[] arr)
7. makeFloatBuffer(float[] arr)
8. makeFloatBuffer(int size)
9. newFloatBuffer(int numFloats)