java.awt.image

Class DataBufferDouble


public final class DataBufferDouble
extends DataBuffer

A DataBuffer that uses an array of double primitives to represent each of its banks.
Since:
1.4

Field Summary

Fields inherited from class java.awt.image.DataBuffer

TYPE_BYTE, TYPE_DOUBLE, TYPE_FLOAT, TYPE_INT, TYPE_SHORT, TYPE_UNDEFINED, TYPE_USHORT, banks, dataType, offset, offsets, size

Constructor Summary

DataBufferDouble(double[] dataArray, int size)
Creates a new data buffer backed by the specified data bank.
DataBufferDouble(double[] dataArray, int size, int offset)
Creates a new data buffer backed by the specified data bank, with the specified offset to the first element.
DataBufferDouble(double[][] dataArray, int size)
Creates a new data buffer backed by the specified data banks.
DataBufferDouble(double[][] dataArray, int size, int[] offsets)
Creates a new data buffer backed by the specified data banks, with the specified offsets to the first element in each bank.
DataBufferDouble(int size)
Creates a new data buffer with a single data bank containing the specified number of double elements.
DataBufferDouble(int size, int numBanks)
Creates a new data buffer with the specified number of data banks, each containing the specified number of double elements.

Method Summary

double[][]
getBankData()
Returns the array underlying this DataBuffer.
double[]
getData()
Returns the first data bank.
double[]
getData(int bank)
Returns a data bank.
int
getElem(int i)
Returns an element from the first data bank.
int
getElem(int bank, int i)
Returns an element from a particular data bank.
double
getElemDouble(int i)
Returns an element from the first data bank, converted to a double.
double
getElemDouble(int bank, int i)
Returns an element from a particular data bank, converted to a double.
float
getElemFloat(int i)
Returns an element from the first data bank, converted to a float.
float
getElemFloat(int bank, int i)
Returns an element from a particular data bank, converted to a float.
void
setElem(int i, int val)
Sets an element in the first data bank.
void
setElem(int bank, int i, int val)
Sets an element in a particular data bank.
void
setElemDouble(int i, double val)
Sets an element in the first data bank.
void
setElemDouble(int bank, int i, double val)
Sets an element in a particular data bank.
void
setElemFloat(int i, float val)
Sets an element in the first data bank.
void
setElemFloat(int bank, int i, float val)
Sets an element in a particular data bank.

Methods inherited from class java.awt.image.DataBuffer

getDataType, getDataTypeSize, getElem, getElem, getElemDouble, getElemDouble, getElemFloat, getElemFloat, getNumBanks, getOffset, getOffsets, getSize, setElem, setElem, setElemDouble, setElemDouble, setElemFloat, setElemFloat

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DataBufferDouble

public DataBufferDouble(double[] dataArray,
                        int size)
Creates a new data buffer backed by the specified data bank.

Note: there is no exception when dataArray is null, but in that case an exception will be thrown later if you attempt to access the data buffer.

Parameters:
dataArray - the data bank.
size - the number of elements in the data bank.

DataBufferDouble

public DataBufferDouble(double[] dataArray,
                        int size,
                        int offset)
Creates a new data buffer backed by the specified data bank, with the specified offset to the first element.

Note: there is no exception when dataArray is null, but in that case an exception will be thrown later if you attempt to access the data buffer.

Parameters:
dataArray - the data bank.
size - the number of elements in the data bank.
offset - the offset to the first element in the array.

DataBufferDouble

public DataBufferDouble(double[][] dataArray,
                        int size)
Creates a new data buffer backed by the specified data banks.
Parameters:
dataArray - the data banks.
size - the number of elements in the data bank.
Throws:
NullPointerException - if dataArray is null.

DataBufferDouble

public DataBufferDouble(double[][] dataArray,
                        int size,
                        int[] offsets)
Creates a new data buffer backed by the specified data banks, with the specified offsets to the first element in each bank.
Parameters:
dataArray - the data banks.
size - the number of elements in the data bank.
offsets - the offsets to the first element in each data bank.
Throws:
NullPointerException - if dataArray is null.

DataBufferDouble

public DataBufferDouble(int size)
Creates a new data buffer with a single data bank containing the specified number of double elements.
Parameters:
size - the number of elements in the data bank.

DataBufferDouble

public DataBufferDouble(int size,
                        int numBanks)
Creates a new data buffer with the specified number of data banks, each containing the specified number of double elements.
Parameters:
size - the number of elements in the data bank.
numBanks - the number of data banks.

Method Details

getBankData

public double[][] getBankData()
Returns the array underlying this DataBuffer.
Returns:
The data banks.

getData

public double[] getData()
Returns the first data bank.
Returns:
The first data bank.

getData

public double[] getData(int bank)
Returns a data bank.
Parameters:
bank - the bank index.
Returns:
A data bank.

getElem

public int getElem(int i)
Returns an element from the first data bank. The offset (specified in the constructor) is added to i before accessing the underlying data array.
Overrides:
getElem in interface DataBuffer
Parameters:
i - the element index.
Returns:
The element.

getElem

public int getElem(int bank,
                   int i)
Returns an element from a particular data bank. The offset (specified in the constructor) is added to i before accessing the underlying data array.
Overrides:
getElem in interface DataBuffer
Parameters:
bank - the bank index.
i - the element index.
Returns:
The element.

getElemDouble

public double getElemDouble(int i)
Returns an element from the first data bank, converted to a double. The offset (specified in the constructor) is added to i before accessing the underlying data array.
Overrides:
getElemDouble in interface DataBuffer
Parameters:
i - the element index.
Returns:
The element.

getElemDouble

public double getElemDouble(int bank,
                            int i)
Returns an element from a particular data bank, converted to a double. The offset (specified in the constructor) is added to i before accessing the underlying data array.
Overrides:
getElemDouble in interface DataBuffer
Parameters:
bank - the bank index.
i - the element index.
Returns:
The element.

getElemFloat

public float getElemFloat(int i)
Returns an element from the first data bank, converted to a float. The offset (specified in the constructor) is added to i before accessing the underlying data array.
Overrides:
getElemFloat in interface DataBuffer
Parameters:
i - the element index.
Returns:
The element.

getElemFloat

public float getElemFloat(int bank,
                          int i)
Returns an element from a particular data bank, converted to a float. The offset (specified in the constructor) is added to i before accessing the underlying data array.
Overrides:
getElemFloat in interface DataBuffer
Parameters:
bank - the bank index.
i - the element index.
Returns:
The element.

setElem

public void setElem(int i,
                    int val)
Sets an element in the first data bank. The offset (specified in the constructor) is added to i before updating the underlying data array.
Overrides:
setElem in interface DataBuffer
Parameters:
i - the element index.
val - the new element value.

setElem

public void setElem(int bank,
                    int i,
                    int val)
Sets an element in a particular data bank. The offset (specified in the constructor) is added to i before updating the underlying data array.
Overrides:
setElem in interface DataBuffer
Parameters:
bank - the data bank index.
i - the element index.
val - the new element value.

setElemDouble

public void setElemDouble(int i,
                          double val)
Sets an element in the first data bank. The offset (specified in the constructor) is added to i before updating the underlying data array.
Overrides:
setElemDouble in interface DataBuffer
Parameters:
i - the element index.
val - the new element value.

setElemDouble

public void setElemDouble(int bank,
                          int i,
                          double val)
Sets an element in a particular data bank. The offset (specified in the constructor) is added to i before updating the underlying data array.
Overrides:
setElemDouble in interface DataBuffer
Parameters:
bank - the data bank index.
i - the element index.
val - the new element value.

setElemFloat

public void setElemFloat(int i,
                         float val)
Sets an element in the first data bank. The offset (specified in the constructor) is added to i before updating the underlying data array.
Overrides:
setElemFloat in interface DataBuffer
Parameters:
i - the element index.
val - the new element value.

setElemFloat

public void setElemFloat(int bank,
                         int i,
                         float val)
Sets an element in a particular data bank. The offset (specified in the constructor) is added to i before updating the underlying data array.
Overrides:
setElemFloat in interface DataBuffer
Parameters:
bank - the data bank index.
i - the element index.
val - the new element value.

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