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Java™ Platform Standard Ed. 6 |
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java.lang.Object java.awt.image.DataBuffer java.awt.image.DataBufferByte
public final class DataBufferByte
This class extends DataBuffer
and stores data internally as bytes.
Values stored in the byte array(s) of this DataBuffer
are treated as
unsigned values.
Field Summary |
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Fields inherited from class java.awt.image.DataBuffer |
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banks, dataType, offset, offsets, size, TYPE_BYTE, TYPE_DOUBLE, TYPE_FLOAT, TYPE_INT, TYPE_SHORT, TYPE_UNDEFINED, TYPE_USHORT |
Constructor Summary | |
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DataBufferByte(byte[][] dataArray,
int size)
Constructs a byte-based DataBuffer with the specified arrays. |
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DataBufferByte(byte[][] dataArray,
int size,
int[] offsets)
Constructs a byte-based DataBuffer with the specified arrays, size,
and offsets. |
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DataBufferByte(byte[] dataArray,
int size)
Constructs a byte-based DataBuffer with a single bank using the
specified array. |
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DataBufferByte(byte[] dataArray,
int size,
int offset)
Constructs a byte-based DataBuffer with a single bank using the
specified array, size, and offset. |
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DataBufferByte(int size)
Constructs a byte-based DataBuffer with a single bank and the
specified size. |
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DataBufferByte(int size,
int numBanks)
Constructs a byte based DataBuffer with the specified number of
banks all of which are the specified size. |
Method Summary | |
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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 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 inherited from class java.awt.image.DataBuffer |
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getDataType, getDataTypeSize, getElemDouble, getElemDouble, getElemFloat, getElemFloat, getNumBanks, getOffset, getOffsets, getSize, setElemDouble, setElemDouble, setElemFloat, setElemFloat |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public DataBufferByte(int size)
DataBuffer
with a single bank and the
specified size.
size
- The size of the DataBuffer
.public DataBufferByte(int size, int numBanks)
DataBuffer
with the specified number of
banks all of which are the specified size.
size
- The size of the banks in the DataBuffer
.numBanks
- The number of banks in the aDataBuffer
.public DataBufferByte(byte[] dataArray, int size)
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.
dataArray
- The byte array for the DataBuffer
.size
- The size of the DataBuffer
bank.public DataBufferByte(byte[] dataArray, int size, int offset)
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
.
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)
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
.
dataArray
- The byte arrays for the DataBuffer
.size
- The size of the banks in the DataBuffer
.public DataBufferByte(byte[][] dataArray, int size, int[] offsets)
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
.
dataArray
- The byte arrays for the DataBuffer
.size
- The size of the banks in the DataBuffer
.offsets
- The offsets into each array.Method Detail |
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public byte[] getData()
public byte[] getData(int bank)
bank
- The bank whose data array you want to get.
public byte[][] getBankData()
public int getElem(int i)
getElem
in class DataBuffer
i
- The data array element you want to get.
setElem(int, int)
,
setElem(int, int, int)
public int getElem(int bank, int i)
getElem
in class DataBuffer
bank
- The bank from which you want to get a data array element.i
- The data array element you want to get.
setElem(int, int)
,
setElem(int, int, int)
public void setElem(int i, int val)
setElem
in class DataBuffer
i
- The data array element you want to set.val
- The integer value to which you want to set the data array element.getElem(int)
,
getElem(int, int)
public void setElem(int bank, int i, int val)
setElem
in class DataBuffer
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.getElem(int)
,
getElem(int, int)
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Java™ Platform Standard Ed. 6 |
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