public final class

DataBufferByte

extends DataBuffer
java.lang.Object
   ↳ java.awt.image.DataBuffer
     ↳ java.awt.image.DataBufferByte

Summary

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Inherited Constants
From class java.awt.image.DataBuffer
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Inherited Fields
From class java.awt.image.DataBuffer
Public Constructors
DataBufferByte(int size)
Constructs a byte-based DataBuffer with a single bank and the specified size.
DataBufferByte(int size, int numBanks)
Constructs a byte based DataBuffer with the specified number of banks all of which are the specified size.
DataBufferByte(byte[] dataArray, int size)
Constructs a byte-based DataBuffer with a single bank using the specified array.
DataBufferByte(byte[] dataArray, int size, int offset)
Constructs a byte-based DataBuffer with a single bank using the specified array, size, and offset.
DataBufferByte(byte[][] dataArray, int size)
Constructs a byte-based DataBuffer with the specified arrays.
DataBufferByte(byte[][] dataArray, int size, int[] offsets)
Constructs a byte-based DataBuffer with the specified arrays, size, and offsets.
Public Methods
byte[][] getBankData()
Returns the data arrays for all banks.
byte[] getData()
Returns the default (first) byte data array.
byte[] getData(int bank)
Returns the data array for the specified bank.
int getElem(int bank, int i)
Returns the requested data array element from the specified bank.
int getElem(int i)
Returns the requested data array element from the first (default) bank.
void setElem(int i, int val)
Sets the requested data array element in the first (default) bank to the specified value.
void setElem(int bank, int i, int val)
Sets the requested data array element in the specified bank from the given integer.
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Inherited Methods
From class java.awt.image.DataBuffer
From class java.lang.Object

Public Constructors

public DataBufferByte (int size)

Constructs a byte-based DataBuffer with a single bank and the specified size.

Parameters
size The size of the DataBuffer.

public DataBufferByte (int size, int numBanks)

Constructs a byte based DataBuffer with the specified number of banks all of which are the specified size.

Parameters
size The size of the banks in the DataBuffer.
numBanks The number of banks in the aDataBuffer.

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.

Note that DataBuffer objects created by this constructor may be incompatible with performance optimizations used by some implementations (such as caching an associated image in video memory).

Parameters
dataArray The byte array for the DataBuffer.
size The size of the DataBuffer bank.

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.

Note that DataBuffer objects created by this constructor may be incompatible with performance optimizations used by some implementations (such as caching an associated image in video memory).

Parameters
dataArray The byte array for the DataBuffer.
size The size of the DataBuffer bank.
offset The offset into the dataArray. dataArray must have at least offset + size elements.

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.

Note that DataBuffer objects created by this constructor may be incompatible with performance optimizations used by some implementations (such as caching an associated image in video memory).

Parameters
dataArray The byte arrays for the DataBuffer.
size The size of the banks in the DataBuffer.

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.

Note that DataBuffer objects created by this constructor may be incompatible with performance optimizations used by some implementations (such as caching an associated image in video memory).

Parameters
dataArray The byte arrays for the DataBuffer.
size The size of the banks in the DataBuffer.
offsets The offsets into each array.

Public Methods

public byte[][] getBankData ()

Returns the data arrays for all banks.

Note that calling this method may cause this DataBuffer object to be incompatible with performance optimizations used by some implementations (such as caching an associated image in video memory).

Returns
  • All of the data arrays.

public byte[] getData ()

Returns the default (first) byte data array.

Note that calling this method may cause this DataBuffer object to be incompatible with performance optimizations used by some implementations (such as caching an associated image in video memory).

Returns
  • The first byte data array.

public byte[] getData (int bank)

Returns the data array for the specified bank.

Note that calling this method may cause this DataBuffer object to be incompatible with performance optimizations used by some implementations (such as caching an associated image in video memory).

Parameters
bank The bank whose data array you want to get.
Returns
  • The data array for the specified bank.

public int getElem (int bank, int i)

Returns the requested data array element from the specified bank.

Parameters
bank The bank from which you want to get a data array element.
i The data array element you want to get.
Returns
  • The requested data array element as an integer.

public int getElem (int i)

Returns the requested data array element from the first (default) bank.

Parameters
i The data array element you want to get.
Returns
  • The requested data array element as an integer.

public void setElem (int i, int val)

Sets the requested data array element in the first (default) bank to the specified value.

Parameters
i The data array element you want to set.
val The integer value to which you want to set the data array element.

public void setElem (int bank, int i, int val)

Sets the requested data array element in the specified bank from the given integer.

Parameters
bank The bank in which you want to set the data array element.
i The data array element you want to set.
val The integer value to which you want to set the specified data array element.