File	Doc	Category	Size	Date	Package
DataBufferByte.java	API Doc	Java SE 5 API	7676	Fri Aug 26 14:56:54 BST 2005	java.awt.image

DataBufferByte

• java.lang.Object
  • java.awt.image.DataBuffer

Fields Summary
byte[]	data The default data bank.
byte[]	bankdata All data banks

Constructors Summary
public DataBufferByte(int size) Constructs a byte-based DataBuffer with a single bank and the specified size. param size The size of the DataBuffer. super(TYPE_BYTE,size); data = new byte[size]; bankdata = new byte[1][]; bankdata[0] = data;
public DataBufferByte(int size, int numBanks) Constructs a byte 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. super(TYPE_BYTE, size, numBanks); bankdata = new byte[numBanks][]; for (int i= 0; i < numBanks; i++) { bankdata[i] = new byte[size]; } data = bankdata[0];
public DataBufferByte(byte[] dataArray, int size) Constructs a byte-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 byte array for the DataBuffer. param size The size of the DataBuffer bank. super(TYPE_BYTE,size); data = dataArray; bankdata = new byte[1][]; bankdata[0] = data;
public DataBufferByte(byte[] dataArray, int size, int offset) Constructs a byte-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 byte array for the DataBuffer. param size The size of the DataBuffer bank. param offset The offset into the dataArray. dataArray must have at least offset + size elements. super(TYPE_BYTE,size,1,offset); data = dataArray; bankdata = new byte[1][]; bankdata[0] = data;
public DataBufferByte(byte[] dataArray, int size) Constructs a byte-based DataBuffer with the specified arrays. The number of banks is equal to dataArray.length. Only the first size elements of each array should be used by accessors of this DataBuffer. param dataArray The byte arrays for the DataBuffer. param size The size of the banks in the DataBuffer. super(TYPE_BYTE,size,dataArray.length); bankdata = (byte[][]) dataArray.clone(); data = bankdata[0];
public DataBufferByte(byte[] dataArray, int size, int[] offsets) Constructs a byte-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 byte arrays for the DataBuffer. param size The size of the banks in the DataBuffer. param offsets The offsets into each array. super(TYPE_BYTE,size,dataArray.length,offsets); bankdata = (byte[][]) dataArray.clone(); data = bankdata[0];

Methods Summary
public byte[][]	getBankData() Returns the data arrays for all banks. return All of the data arrays. return (byte[][]) bankdata.clone();
public byte[]	getData() Returns the default (first) byte data array. return The first byte data array. return data;
public byte[]	getData(int bank) 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. return bankdata[bank];
public int	getElem(int i) 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) return (int)(data[i+offset]) & 0xff;
public int	getElem(int bank, int i) 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) return (int)(bankdata[bank][i+offsets[bank]]) & 0xff;
public void	setElem(int i, int val) 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) data[i+offset] = (byte)val;
public void	setElem(int bank, int i, int 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) bankdata[bank][i+offsets[bank]] = (byte)val;