com.sun.j3d.internal

Class DoubleBufferWrapper

java.lang.Object

com.sun.j3d.internal.BufferWrapper

com.sun.j3d.internal.DoubleBufferWrapper

public class DoubleBufferWrapper
extends BufferWrapper

NIO Buffers are new in Java 1.4 but we need to run on 1.3 as well, so this class was created to hide the NIO classes from non-1.4 Java 3D users.

NOTE: We no longer need to support JDK 1.3 as of the Java 3D 1.3.2 community source release on java.net. We should be able to get rid of this class.

Field Summary

Fields inherited from class com.sun.j3d.internal.BufferWrapper

TYPE_BYTE, TYPE_DOUBLE, TYPE_FLOAT, TYPE_NULL, TYPE_UNKNOWN

Constructor Summary

Constructors

Constructor and Description
DoubleBufferWrapper(DoubleBuffer buffer) Constructor initializes buffer with a java.nio.DoubleBuffer object.
DoubleBufferWrapper(javax.media.j3d.J3DBuffer b) Constructor initializes buffer with a javax.media.j3d.J3DBuffer object.

Method Summary

Methods

Modifier and Type	Method and Description
double	get() Reads the double at this buffer's current position, and then increments the position.
DoubleBufferWrapper	get(double[] dst) Bulk get method.
DoubleBufferWrapper	get(double[] dst, int offset, int length) Bulk get method.
double	get(int index) Reads the double at the given offset into the buffer.
Buffer	getBuffer() Returns the java.nio.Buffer contained within this DoubleBufferWrapper.
javax.media.j3d.J3DBuffer	getJ3DBuffer() Creates and returns a J3DBuffer object containing the buffer in this DoubleBufferWrapper object.
boolean	isDirect()
DoubleBufferWrapper	put(double[] src) Bulk put method.

Methods inherited from class com.sun.j3d.internal.BufferWrapper

capacity, getBufferAsObject, getBufferType, limit, position, position, rewind

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DoubleBufferWrapper

public DoubleBufferWrapper(DoubleBuffer buffer)

Constructor initializes buffer with a java.nio.DoubleBuffer object.

DoubleBufferWrapper

public DoubleBufferWrapper(javax.media.j3d.J3DBuffer b)

Constructor initializes buffer with a javax.media.j3d.J3DBuffer object.

Method Detail

getBuffer

public Buffer getBuffer()

Returns the java.nio.Buffer contained within this DoubleBufferWrapper.

isDirect

public boolean isDirect()

Returns:

A boolean indicating whether the java.nio.Buffer object contained within this DoubleBuffer is direct or indirect.

get

public double get()

Reads the double at this buffer's current position, and then increments the position.

get

public double get(int index)

Reads the double at the given offset into the buffer.

get

public DoubleBufferWrapper get(double[] dst)

Bulk get method. Transfers dst.length doubles from the buffer to the destination array and increments the buffer's position by dst.length.

get

public DoubleBufferWrapper get(double[] dst,
                      int offset,
                      int length)

Bulk get method. Transfers length doubles from the buffer starting at position offset into the destination array.

put

public DoubleBufferWrapper put(double[] src)

Bulk put method. Transfers src.length doubles into the buffer at the current position.

getJ3DBuffer

public javax.media.j3d.J3DBuffer getJ3DBuffer()

Creates and returns a J3DBuffer object containing the buffer in this DoubleBufferWrapper object.