org.lwjgl
Class BufferUtils

java.lang.Object
  org.lwjgl.BufferUtils

public final class BufferUtils
extends Object

Some often-used Buffer code for creating native buffers of the appropriate size.

Version:

$Revision: 2983 $ $Id: BufferUtils.java 2983 2008-04-07 18:36:09Z matzon $

Author:

$Author: matzon $

Constructor Summary

BufferUtils()

Method Summary

static ByteBuffer	createByteBuffer(int size) Construct a direct native-ordered bytebuffer with the specified size.
static CharBuffer	createCharBuffer(int size) Construct a direct native-order charbuffer with the specified number of elements.
static DoubleBuffer	createDoubleBuffer(int size) Construct a direct native-order doublebuffer with the specified number of elements.
static FloatBuffer	createFloatBuffer(int size) Construct a direct native-order floatbuffer with the specified number of elements.
static IntBuffer	createIntBuffer(int size) Construct a direct native-order intbuffer with the specified number of elements.
static LongBuffer	createLongBuffer(int size) Construct a direct native-order longbuffer with the specified number of elements.
static ShortBuffer	createShortBuffer(int size) Construct a direct native-order shortbuffer with the specified number of elements.
static int	getElementSizeExponent(Buffer buf)
static int	getOffset(Buffer buffer) A helper function which is used to get the byte offset in an arbitrary buffer based on its position

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferUtils

public BufferUtils()

Method Detail

createByteBuffer

public static ByteBuffer createByteBuffer(int size)

Construct a direct native-ordered bytebuffer with the specified size.

Parameters:

size - The size, in bytes

Returns:

a ByteBuffer

createShortBuffer

public static ShortBuffer createShortBuffer(int size)

Construct a direct native-order shortbuffer with the specified number of elements.

Parameters:

size - The size, in shorts

Returns:

a ShortBuffer

createCharBuffer

public static CharBuffer createCharBuffer(int size)

Construct a direct native-order charbuffer with the specified number of elements.

Parameters:

size - The size, in chars

Returns:

an CharBuffer

createIntBuffer

public static IntBuffer createIntBuffer(int size)

Construct a direct native-order intbuffer with the specified number of elements.

Parameters:

size - The size, in ints

Returns:

an IntBuffer

createLongBuffer

public static LongBuffer createLongBuffer(int size)

Construct a direct native-order longbuffer with the specified number of elements.

Parameters:

size - The size, in longs

Returns:

an LongBuffer

createFloatBuffer

public static FloatBuffer createFloatBuffer(int size)

Construct a direct native-order floatbuffer with the specified number of elements.

Parameters:

size - The size, in floats

Returns:

a FloatBuffer

createDoubleBuffer

public static DoubleBuffer createDoubleBuffer(int size)

Construct a direct native-order doublebuffer with the specified number of elements.

Parameters:

size - The size, in floats

Returns:

a FloatBuffer

getElementSizeExponent

public static int getElementSizeExponent(Buffer buf)

Returns:

n, where buffer_element_size=2^n.

getOffset

public static int getOffset(Buffer buffer)

A helper function which is used to get the byte offset in an arbitrary buffer based on its position

Returns:

the position of the buffer, in BYTES