com.sun.j3d.internal
Class BufferWrapper

java.lang.Object
  com.sun.j3d.internal.BufferWrapper

Direct Known Subclasses:

ByteBufferWrapper, DoubleBufferWrapper, FloatBufferWrapper

public abstract class BufferWrapper
extends java.lang.Object

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

static int	TYPE_BYTE Value returned from getBufferType(), this indicates that the BufferWrapper contains a java.nio.ByteBuffer.
static int	TYPE_DOUBLE Value returned from getBufferType(), this indicates that the BufferWrapper contains a java.nio.DoubleBuffer.
static int	TYPE_FLOAT Value returned from getBufferType(), this indicates that the BufferWrapper contains a java.nio.FloatBuffer.
static int	TYPE_NULL Value returned from getBufferType(), this indicates that the BufferWrapper contains a null buffer.
static int	TYPE_UNKNOWN Value returned from getBufferType(), this indicates that the BufferWrapper does not hold data of type byte, float, or double.

Constructor Summary

BufferWrapper()
Never used - this class is abstract.

Method Summary

int	capacity()
java.lang.Object	getBufferAsObject()
static int	getBufferType(javax.media.j3d.J3DBuffer b)
int	limit()
int	position()
BufferWrapper	position(int newPosition) Sets this buffer's position.
BufferWrapper	rewind() Resets this buffer's position to the previously marked position.

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_NULL

public static final int TYPE_NULL

Value returned from getBufferType(), this indicates that the BufferWrapper contains a null buffer.

See Also:

Constant Field Values

TYPE_UNKNOWN

public static final int TYPE_UNKNOWN

Value returned from getBufferType(), this indicates that the BufferWrapper does not hold data of type byte, float, or double.

See Also:

Constant Field Values

TYPE_BYTE

public static final int TYPE_BYTE

Value returned from getBufferType(), this indicates that the BufferWrapper contains a java.nio.ByteBuffer.

See Also:

Constant Field Values

TYPE_FLOAT

public static final int TYPE_FLOAT

Value returned from getBufferType(), this indicates that the BufferWrapper contains a java.nio.FloatBuffer.

See Also:

Constant Field Values

TYPE_DOUBLE

public static final int TYPE_DOUBLE

Value returned from getBufferType(), this indicates that the BufferWrapper contains a java.nio.DoubleBuffer.

See Also:

Constant Field Values

Constructor Detail

BufferWrapper

public BufferWrapper()

Never used - this class is abstract.

Method Detail

getBufferAsObject

public java.lang.Object getBufferAsObject()

Returns:

Buffer as object of type Object.

capacity

public int capacity()

Returns:

This buffer's capacity (set at initialization in allocateDirect() ).

See Also:

ByteBufferWrapper.allocateDirect(int)

limit

public int limit()

Returns:

This buffer's limit.

position

public int position()

Returns:

This buffer's position.

position

public BufferWrapper position(int newPosition)

Sets this buffer's position.

Returns:

This buffer.

rewind

public BufferWrapper rewind()

Resets this buffer's position to the previously marked position.

Returns:

This buffer.

getBufferType

public static int getBufferType(javax.media.j3d.J3DBuffer b)

Returns:

An integer indicating the type of data held in this buffer.

See Also:

TYPE_NULL, TYPE_BYTE, TYPE_FLOAT, TYPE_DOUBLE, TYPE_UNKNOWN