/*
* @(#)DataBufferShort.java 1.19 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
/* ****************************************************************
******************************************************************
******************************************************************
*** COPYRIGHT (c) Eastman Kodak Company, 1997
*** As an unpublished work pursuant to Title 17 of the United
*** States Code. All rights reserved.
******************************************************************
******************************************************************
******************************************************************/
package java.awt.image;
/**
* This class extends DataBuffer
and stores data internally as shorts.
*/
public final class DataBufferShort extends DataBuffer
{
/** The default data bank. */
short data[];
/** All data banks */
short bankdata[][];
/**
* Constructs a short-based DataBuffer
with a single bank and the
* specified size.
*
* @param size The size of the DataBuffer
.
*/
public DataBufferShort(int size) {
super(TYPE_SHORT,size);
data = new short[size];
bankdata = new short[1][];
bankdata[0] = data;
}
/**
* Constructs a short-based DataBuffer
with the specified number of
* banks all of which are the specified size.
*
* @param size The size of the banks in the DataBuffer
.
* @param numBanks The number of banks in the aDataBuffer
.
*/
public DataBufferShort(int size, int numBanks) {
super(TYPE_SHORT,size,numBanks);
bankdata = new short[numBanks][];
for (int i= 0; i < numBanks; i++) {
bankdata[i] = new short[size];
}
data = bankdata[0];
}
/**
* Constructs a short-based DataBuffer
with a single bank using the
* specified array.
* Only the first size
elements should be used by accessors of
* this DataBuffer
. dataArray
must be large enough to
* hold size
elements.
*
* @param dataArray The short array for the DataBuffer
.
* @param size The size of the DataBuffer
bank.
*/
public DataBufferShort(short dataArray[], int size) {
super(TYPE_SHORT,size);
data = dataArray;
bankdata = new short[1][];
bankdata[0] = data;
}
/**
* Constructs a short-based DataBuffer
with a single bank using the
* specified array, size, and offset. dataArray
must have at least
* offset
+ size
elements. Only elements offset
* through offset
+ size
- 1
* should be used by accessors of this DataBuffer
.
*
* @param dataArray The short array for the DataBuffer
.
* @param size The size of the DataBuffer
bank.
* @param offset The offset into the dataArray
.
*/
public DataBufferShort(short dataArray[], int size, int offset) {
super(TYPE_SHORT,size,1,offset);
data = dataArray;
bankdata = new short[1][];
bankdata[0] = data;
}
/**
* Constructs a short-based DataBuffer
with the specified arrays.
* The number of banks will be equal to dataArray.length
.
* Only the first size
elements of each array should be used by
* accessors of this DataBuffer
.
*
* @param dataArray The short arrays for the DataBuffer
.
* @param size The size of the banks in the DataBuffer
.
*/
public DataBufferShort(short dataArray[][], int size) {
super(TYPE_SHORT,size,dataArray.length);
bankdata = (short[][]) dataArray.clone();
data = bankdata[0];
}
/**
* Constructs a short-based DataBuffer
with the specified arrays, size,
* and offsets.
* The number of banks is equal to dataArray.length
. Each array must
* be at least as large as size
+ the corresponding offset. There must
* be an entry in the offset array for each dataArray
entry. For each
* bank, only elements offset
through
* offset
+ size
- 1 should be
* used by accessors of this DataBuffer
.
*
* @param dataArray The short arrays for the DataBuffer
.
* @param size The size of the banks in the DataBuffer
.
* @param offsets The offsets into each array.
*/
public DataBufferShort(short dataArray[][], int size, int offsets[]) {
super(TYPE_SHORT,size,dataArray.length,offsets);
bankdata = (short[][]) dataArray.clone();
data = bankdata[0];
}
/**
* Returns the default (first) byte data array.
*
* @return The first short data array.
*/
public short[] getData() {
return data;
}
/**
* Returns the data array for the specified bank.
*
* @param bank The bank whose data array you want to get.
* @return The data array for the specified bank.
*/
public short[] getData(int bank) {
return bankdata[bank];
}
/**
* Returns the data arrays for all banks.
* @return All of the data arrays.
*/
public short[][] getBankData() {
return (short[][]) bankdata.clone();
}
/**
* Returns the requested data array element from the first (default) bank.
*
* @param i The data array element you want to get.
* @return The requested data array element as an integer.
* @see #setElem(int, int)
* @see #setElem(int, int, int)
*/
public int getElem(int i) {
return (int)(data[i+offset]);
}
/**
* Returns the requested data array element from the specified bank.
*
* @param bank The bank from which you want to get a data array element.
* @param i The data array element you want to get.
* @return The requested data array element as an integer.
* @see #setElem(int, int)
* @see #setElem(int, int, int)
*/
public int getElem(int bank, int i) {
return (int)(bankdata[bank][i+offsets[bank]]);
}
/**
* Sets the requested data array element in the first (default) bank
* to the specified value.
*
* @param i The data array element you want to set.
* @param val The integer value to which you want to set the data array element.
* @see #getElem(int)
* @see #getElem(int, int)
*/
public void setElem(int i, int val) {
data[i+offset] = (short)val;
}
/**
* Sets the requested data array element in the specified bank
* from the given integer.
* @param bank The bank in which you want to set the data array element.
* @param i The data array element you want to set.
* @param val The integer value to which you want to set the specified data array element.
* @see #getElem(int)
* @see #getElem(int, int)
*/
public void setElem(int bank, int i, int val) {
bankdata[bank][i+offsets[bank]] = (short)val;
}
}