Class DataBufferByte
DataBuffer
and stores data internally as bytes.
Values stored in the byte array(s) of this DataBuffer
are treated as
unsigned values.
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Field Summary
Fields declared in class java.awt.image.DataBuffer
banks, dataType, offset, offsets, size, TYPE_BYTE, TYPE_DOUBLE, TYPE_FLOAT, TYPE_INT, TYPE_SHORT, TYPE_UNDEFINED, TYPE_USHORT
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Constructor Summary
ConstructorDescriptionDataBufferByte
(byte[][] dataArray, int size) Constructs a byte-basedDataBuffer
with the specified arrays.DataBufferByte
(byte[][] dataArray, int size, int[] offsets) Constructs a byte-basedDataBuffer
with the specified arrays, size, and offsets.DataBufferByte
(byte[] dataArray, int size) Constructs a byte-basedDataBuffer
with a single bank using the specified array.DataBufferByte
(byte[] dataArray, int size, int offset) Constructs a byte-basedDataBuffer
with a single bank using the specified array, size, and offset.DataBufferByte
(int size) Constructs a byte-basedDataBuffer
with a single bank and the specified size.DataBufferByte
(int size, int numBanks) Constructs a byte basedDataBuffer
with the specified number of banks all of which are the specified size. -
Method Summary
Modifier and TypeMethodDescriptionbyte[][]
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 i) Returns the requested data array element from the first (default) bank.int
getElem
(int bank, int i) Returns the requested data array element from the specified 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.Methods declared in class java.awt.image.DataBuffer
getDataType, getDataTypeSize, getElemDouble, getElemDouble, getElemFloat, getElemFloat, getNumBanks, getOffset, getOffsets, getSize, setElemDouble, setElemDouble, setElemFloat, setElemFloat
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Constructor Details
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DataBufferByte
public DataBufferByte(int size) Constructs a byte-basedDataBuffer
with a single bank and the specified size.- Parameters:
size
- The size of theDataBuffer
.
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DataBufferByte
public DataBufferByte(int size, int numBanks) Constructs a byte basedDataBuffer
with the specified number of banks all of which are the specified size.- Parameters:
size
- The size of the banks in theDataBuffer
.numBanks
- The number of banks in theDataBuffer
.
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DataBufferByte
public DataBufferByte(byte[] dataArray, int size) Constructs a byte-basedDataBuffer
with a single bank using the specified array. Only the firstsize
elements should be used by accessors of thisDataBuffer
.dataArray
must be large enough to holdsize
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 theDataBuffer
.size
- The size of theDataBuffer
bank.
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DataBufferByte
public DataBufferByte(byte[] dataArray, int size, int offset) Constructs a byte-basedDataBuffer
with a single bank using the specified array, size, and offset.dataArray
must have at leastoffset
+size
elements. Only elementsoffset
throughoffset
+size
- 1 should be used by accessors of thisDataBuffer
.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 theDataBuffer
.size
- The size of theDataBuffer
bank.offset
- The offset into thedataArray
.dataArray
must have at leastoffset
+size
elements.
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DataBufferByte
public DataBufferByte(byte[][] dataArray, int size) Constructs a byte-basedDataBuffer
with the specified arrays. The number of banks is equal todataArray.length
. Only the firstsize
elements of each array should be used by accessors of thisDataBuffer
.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 theDataBuffer
.size
- The size of the banks in theDataBuffer
.
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DataBufferByte
public DataBufferByte(byte[][] dataArray, int size, int[] offsets) Constructs a byte-basedDataBuffer
with the specified arrays, size, and offsets. The number of banks is equal todataArray.length
. Each array must be at least as large assize
+ the correspondingoffset
. There must be an entry in theoffset
array for eachdataArray
entry. For each bank, only elementsoffset
throughoffset
+size
- 1 should be used by accessors of thisDataBuffer
.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 theDataBuffer
.size
- The size of the banks in theDataBuffer
.offsets
- The offsets into each array.
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Method Details
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getData
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.
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getData
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.
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getBankData
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.
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getElem
public int getElem(int i) Returns the requested data array element from the first (default) bank.- Overrides:
getElem
in classDataBuffer
- Parameters:
i
- The data array element you want to get.- Returns:
- The requested data array element as an integer.
- See Also:
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getElem
public int getElem(int bank, int i) Returns the requested data array element from the specified bank.- Specified by:
getElem
in classDataBuffer
- 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.
- See Also:
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setElem
public void setElem(int i, int val) Sets the requested data array element in the first (default) bank to the specified value.- Overrides:
setElem
in classDataBuffer
- Parameters:
i
- The data array element you want to set.val
- The integer value to which you want to set the data array element.- See Also:
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setElem
public void setElem(int bank, int i, int val) Sets the requested data array element in the specified bank from the given integer.- Specified by:
setElem
in classDataBuffer
- 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.- See Also:
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