java.lang.Object | ||
↳ | java.awt.image.DataBuffer | |
↳ | java.awt.image.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.
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Inherited Constants | |||||||||||
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From class
java.awt.image.DataBuffer
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Inherited Fields | |||||||||||
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From class
java.awt.image.DataBuffer
|
Public Constructors | |||||||||||
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Constructs a byte-based
DataBuffer with a single bank and the
specified size. | |||||||||||
Constructs a byte based
DataBuffer with the specified number of
banks all of which are the specified size. | |||||||||||
Constructs a byte-based
DataBuffer with a single bank using the
specified array. | |||||||||||
Constructs a byte-based
DataBuffer with a single bank using the
specified array, size, and offset. | |||||||||||
Constructs a byte-based
DataBuffer with the specified arrays. | |||||||||||
Constructs a byte-based
DataBuffer with the specified arrays, size,
and offsets. |
Public Methods | |||||||||||
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Returns the data arrays for all banks.
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Returns the default (first) byte data array.
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Returns the data array for the specified bank.
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Returns the requested data array element from the specified bank.
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Returns the requested data array element from the first (default) bank.
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Sets the requested data array element in the first (default) bank
to the specified value.
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Sets the requested data array element in the specified bank
from the given integer.
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Inherited Methods | |||||||||||
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From class
java.awt.image.DataBuffer
| |||||||||||
From class
java.lang.Object
|
Constructs a byte-based DataBuffer
with a single bank and the
specified size.
size | The size of the DataBuffer .
|
---|
Constructs a byte based 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 .
|
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).
dataArray | The byte array for the DataBuffer . |
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size | The size of the DataBuffer bank.
|
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).
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.
|
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).
dataArray | The byte arrays for the DataBuffer . |
---|---|
size | The size of the banks in the DataBuffer .
|
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).
dataArray | The byte arrays for the DataBuffer . |
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size | The size of the banks in the DataBuffer . |
offsets | The offsets into each array. |
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 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 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).
bank | The bank whose data array you want to get. |
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Returns the requested data array element from the specified bank.
bank | The bank from which you want to get a data array element. |
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i | The data array element you want to get. |
Returns the requested data array element from the first (default) bank.
i | The data array element you want to get. |
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Sets the requested data array element in the first (default) bank to the specified value.
i | The data array element you want to set. |
---|---|
val | The integer value to which you want to set the data array element. |
Sets the requested data array element in the specified bank from the given integer.
bank | The bank in which you want to set the data array element. |
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i | The data array element you want to set. |
val | The integer value to which you want to set the specified data array element. |