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/*
* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any
* kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
* EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
* NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
* USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
* ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
* CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
* REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
* INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or
* maintenance of any nuclear facility.
*
*/
package com.sun.j3d.internal;
/**
* The FastVector object is a growable array of ints. It's much faster
* than the Java Vector class because it isn't synchronized. This class
* was created because it is needed in several places by graphics
* utilities.
*/
public class FastVector {
private int data[];
private int capacity;
private int increment;
private int size;
/**
* Add an element to the end of the array.
*/
public void addElement(int element)
{
if (size >= capacity) {
capacity += (increment == 0) ? capacity : increment;
int newData[] = new int[capacity];
System.arraycopy(data, 0, newData, 0, size);
data = newData;
}
data[size++] = element;
} // End of addElement
/**
* Get number of ints currently stored in the array;
*/
public int getSize()
{
return size;
} // End of getSize
/**
* Get access to array data
*/
public int[] getData()
{
return data;
} // End of getData
/**
* Constructor.
* @param initialCapacity Number of ints the object can hold
* without reallocating the array.
* @param capacityIncrement Once the array has grown beyond
* its capacity, how much larger the reallocated array should be.
*/
public FastVector(int initialCapacity, int capacityIncrement)
{
data = new int[initialCapacity];
capacity = initialCapacity;
increment = capacityIncrement;
size = 0;
} // End of FastVector(int, int)
/**
* Constructor.
* When the array runs out of space, its size is doubled.
* @param initialCapacity Number of ints the object can hold
* without reallocating the array.
*/
public FastVector(int initialCapacity)
{
data = new int[initialCapacity];
capacity = initialCapacity;
increment = 0;
size = 0;
} // End of FastVector(int)
/**
* Constructor.
* The array is constructed with initial capacity of one integer.
* When the array runs out of space, its size is doubled.
*/
public FastVector()
{
data = new int[1];
capacity = 1;
increment = 0;
size = 0;
} // End of FastVector()
} // End of class FastVector
// End of file FastVector.java