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JavaTM 2 Platform Std. Ed. v1.6.0
java.awt.image
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Field Summary | |
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protected int |
banks
The number of banks in this DataBuffer. |
protected int |
dataType
The data type of this DataBuffer. |
protected int |
offset
Offset into default (first) bank from which to get the first element. |
protected int[] |
offsets
Offsets into all banks. |
protected int |
size
Usable size of all banks. |
static int |
TYPE_BYTE
Tag for unsigned byte data. |
static int |
TYPE_DOUBLE
Tag for double data. |
static int |
TYPE_FLOAT
Tag for float data. |
static int |
TYPE_INT
Tag for int data. |
static int |
TYPE_SHORT
Tag for signed short data. |
static int |
TYPE_UNDEFINED
Tag for undefined data. |
static int |
TYPE_USHORT
Tag for unsigned short data. |
Constructor Summary | |
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protected |
DataBuffer(int dataType,
int size)
Constructs a DataBuffer containing one bank of the specified data type and size. |
protected |
DataBuffer(int dataType,
int size,
int numBanks)
Constructs a DataBuffer containing the specified number of banks. |
protected |
DataBuffer(int dataType,
int size,
int numBanks,
int offset)
Constructs a DataBuffer that contains the specified number of banks. |
protected |
DataBuffer(int dataType,
int size,
int numBanks,
int[] offsets)
Constructs a DataBuffer which contains the specified number of banks. |
Method Summary | |
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int |
getDataType()
Returns the data type of this DataBuffer. |
static int |
getDataTypeSize(int type)
Returns the size (in bits) of the data type, given a datatype tag. |
int |
getElem(int i)
Returns the requested data array element from the first (default) bank as an integer. |
abstract int |
getElem(int bank,
int i)
Returns the requested data array element from the specified bank as an integer. |
double |
getElemDouble(int i)
Returns the requested data array element from the first (default) bank as a double. |
double |
getElemDouble(int bank,
int i)
Returns the requested data array element from the specified bank as a double. |
float |
getElemFloat(int i)
Returns the requested data array element from the first (default) bank as a float. |
float |
getElemFloat(int bank,
int i)
Returns the requested data array element from the specified bank as a float. |
int |
getNumBanks()
Returns the number of banks in this DataBuffer. |
int |
getOffset()
Returns the offset of the default bank in array elements. |
int[] |
getOffsets()
Returns the offsets (in array elements) of all the banks. |
int |
getSize()
Returns the size (in array elements) of all banks. |
void |
setElem(int i,
int val)
Sets the requested data array element in the first (default) bank from the given integer. |
abstract void |
setElem(int bank,
int i,
int val)
Sets the requested data array element in the specified bank from the given integer. |
void |
setElemDouble(int i,
double val)
Sets the requested data array element in the first (default) bank from the given double. |
void |
setElemDouble(int bank,
int i,
double val)
Sets the requested data array element in the specified bank from the given double. |
void |
setElemFloat(int i,
float val)
Sets the requested data array element in the first (default) bank from the given float. |
void |
setElemFloat(int bank,
int i,
float val)
Sets the requested data array element in the specified bank from the given float. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final int TYPE_BYTE
public static final int TYPE_USHORT
public static final int TYPE_SHORT
public static final int TYPE_INT
public static final int TYPE_FLOAT
public static final int TYPE_DOUBLE
public static final int TYPE_UNDEFINED
protected int dataType
protected int banks
protected int offset
protected int size
protected int[] offsets
Constructor Detail |
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protected DataBuffer(int dataType, int size)
dataType
- the data type of this DataBuffer
size
- the size of the banksprotected DataBuffer(int dataType, int size, int numBanks)
dataType
- the data type of this DataBuffer
size
- the size of the banksnumBanks
- the number of banks in this
DataBuffer
protected DataBuffer(int dataType, int size, int numBanks, int offset)
dataType
- the data type of this DataBuffer
size
- the size of the banksnumBanks
- the number of banks in this
DataBuffer
offset
- the offset for each bankprotected DataBuffer(int dataType, int size, int numBanks, int[] offsets)
dataType
- the data type of this DataBuffer
size
- the size of the banksnumBanks
- the number of banks in this
DataBuffer
offsets
- an array containing an offset for each bank.
ArrayIndexOutOfBoundsException
- if numBanks
does not equal the length of offsets
Method Detail |
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public static int getDataTypeSize(int type)
type
- the value of one of the defined datatype tags
IllegalArgumentException
- if type
is less than
zero or greater than TYPE_DOUBLE
public int getDataType()
DataBuffer
.public int getSize()
public int getOffset()
public int[] getOffsets()
public int getNumBanks()
public int getElem(int i)
i
- the index of the requested data array element
setElem(int, int)
,
setElem(int, int, int)
public abstract int getElem(int bank, int i)
bank
- the specified banki
- the index of the requested data array element
setElem(int, int)
,
setElem(int, int, int)
public void setElem(int i, int val)
i
- the specified index into the data arrayval
- the data to set the element at the specified index in
the data arraygetElem(int)
,
getElem(int, int)
public abstract void setElem(int bank, int i, int val)
bank
- the specified banki
- the specified index into the data arrayval
- the data to set the element in the specified bank
at the specified index in the data arraygetElem(int)
,
getElem(int, int)
public float getElemFloat(int i)
i
- the index of the requested data array element
setElemFloat(int, float)
,
setElemFloat(int, int, float)
public float getElemFloat(int bank, int i)
getElem(int, int)
to a float. Subclasses can override this method if another
implementation is needed.
bank
- the specified banki
- the index of the requested data array element
setElemFloat(int, float)
,
setElemFloat(int, int, float)
public void setElemFloat(int i, float val)
setElem(int, int)
. Subclasses
can override this method if another implementation is needed.
i
- the specified indexval
- the value to set the element at the specified index in
the data arraygetElemFloat(int)
,
getElemFloat(int, int)
public void setElemFloat(int bank, int i, float val)
setElem(int, int)
. Subclasses can
override this method if another implementation is needed.
bank
- the specified banki
- the specified indexval
- the value to set the element in the specified bank at
the specified index in the data arraygetElemFloat(int)
,
getElemFloat(int, int)
public double getElemDouble(int i)
getElem(int)
to a double. Subclasses can override this method if another
implementation is needed.
i
- the specified index
setElemDouble(int, double)
,
setElemDouble(int, int, double)
public double getElemDouble(int bank, int i)
bank
- the specified banki
- the specified index
setElemDouble(int, double)
,
setElemDouble(int, int, double)
public void setElemDouble(int i, double val)
setElem(int, int)
. Subclasses can
override this method if another implementation is needed.
i
- the specified indexval
- the value to set the element at the specified index
in the data arraygetElemDouble(int)
,
getElemDouble(int, int)
public void setElemDouble(int bank, int i, double val)
setElem(int, int)
. Subclasses can
override this method if another implementation is needed.
bank
- the specified banki
- the specified indexval
- the value to set the element in the specified bank
at the specified index of the data arraygetElemDouble(int)
,
getElemDouble(int, int)