public final class

DataBufferDouble

extends DataBuffer

java.lang.Object
↳	java.awt.image.DataBuffer
	↳	java.awt.image.DataBufferDouble

Class Overview

This class extends DataBuffer and stores data internally in double form.

Note that some implementations may function more efficiently if they can maintain control over how the data for an image is stored. For example, optimizations such as caching an image in video memory require that the implementation track all modifications to that data. Other implementations may operate better if they can store the data in locations other than a Java array. To maintain optimum compatibility with various optimizations it is best to avoid constructors and methods which expose the underlying storage as a Java array as noted below in the documentation for those methods.

Summary

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Inherited Constants

From class java.awt.image.DataBuffer

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Inherited Fields

From class java.awt.image.DataBuffer

Public Constructors
	DataBufferDouble(int size) Constructs a `double`-based `DataBuffer` with a specified size.
	DataBufferDouble(int size, int numBanks) Constructs a `double`-based `DataBuffer` with a specified number of banks, all of which are of a specified size.
	DataBufferDouble(double[] dataArray, int size) Constructs a `double`-based `DataBuffer` with the specified data array.
	DataBufferDouble(double[] dataArray, int size, int offset) Constructs a `double`-based `DataBuffer` with the specified data array.
	DataBufferDouble(double[][] dataArray, int size) Constructs a `double`-based `DataBuffer` with the specified data arrays.
	DataBufferDouble(double[][] dataArray, int size, int[] offsets) Constructs a `double`-based `DataBuffer` with the specified data arrays, size, and per-bank offsets.

Public Methods
double[][]	getBankData() Returns the data array for all banks.
double[]	getData(int bank) Returns the data array for the specified bank.
double[]	getData() Returns the default (first) `double` data array.
int	getElem(int bank, int i) Returns the requested data array element from the specified bank as an `int`.
int	getElem(int i) Returns the requested data array element from the first (default) bank as an `int`.
double	getElemDouble(int bank, int i) Returns the requested data array element from the specified bank as a `double`.
double	getElemDouble(int i) Returns the requested data array element from the first (default) 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`.
void	setElem(int i, int val) Sets the requested data array element in the first (default) bank to the given `int`.
void	setElem(int bank, int i, int val) Sets the requested data array element in the specified bank to the given `int`.
void	setElemDouble(int i, double val) Sets the requested data array element in the first (default) bank to the given `double`.
void	setElemDouble(int bank, int i, double val) Sets the requested data array element in the specified bank to the given `double`.
void	setElemFloat(int i, float val) Sets the requested data array element in the first (default) bank to the given `float`.
void	setElemFloat(int bank, int i, float val) Sets the requested data array element in the specified bank to the given `float`.

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Inherited Methods

From class java.awt.image.DataBuffer

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.
abstract int	getElem(int bank, int i) Returns the requested data array element from the specified bank as an integer.
int	getElem(int i) Returns the requested data array element from the first (default) bank as an integer.
double	getElemDouble(int bank, int i) Returns the requested data array element from the specified bank as a double.
double	getElemDouble(int i) Returns the requested data array element from the first (default) 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.

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

Public Constructors

public DataBufferDouble (int size)

Constructs a double-based DataBuffer with a specified size.

Parameters

size	The number of elements in the `DataBuffer`.

public DataBufferDouble (int size, int numBanks)

Constructs a double-based DataBuffer with a specified number of banks, all of which are of a specified size.

Parameters

size	The number of elements in each bank of the `DataBuffer`.
numBanks	The number of banks in the `DataBuffer`.

public DataBufferDouble (double[] dataArray, int size)

Constructs a double-based DataBuffer with the specified data array. Only the first size elements are available for use by this DataBuffer. The array 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).

Parameters

dataArray	An array of `double`s to be used as the first and only bank of this `DataBuffer`.
size	The number of elements of the array to be used.

public DataBufferDouble (double[] dataArray, int size, int offset)

Constructs a double-based DataBuffer with the specified data array. Only the elements between offset and offset + size - 1 are available for use by this DataBuffer. The array must be large enough to hold offset + 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).

Parameters

dataArray	An array of `double`s to be used as the first and only bank of this `DataBuffer`.
size	The number of elements of the array to be used.
offset	The offset of the first element of the array that will be used.

public DataBufferDouble (double[][] dataArray, int size)

Constructs a double-based DataBuffer with the specified data arrays. Only the first size elements of each array are available for use by this DataBuffer. The number of banks will be equal to dataArray.length.

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	An array of arrays of `double`s to be used as the banks of this `DataBuffer`.
size	The number of elements of each array to be used.

public DataBufferDouble (double[][] dataArray, int size, int[] offsets)

Constructs a double-based DataBuffer with the specified data arrays, size, and per-bank offsets. The number of banks is equal to dataArray.length. Each array must be at least as large as size plus the corresponding offset. There must be an entry in the offsets array for each data array.

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	An array of arrays of `double`s to be used as the banks of this `DataBuffer`.
size	The number of elements of each array to be used.
offsets	An array of integer offsets, one for each bank.

Public Methods

public double[][] getBankData ()

Returns the data array 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 data arrays from this data buffer.

public double[] 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 data array

Returns

the data array specified by bank.

public double[] getData ()

Returns the default (first) double 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 double data array.

public int getElem (int bank, int i)

Returns the requested data array element from the specified bank as an int.

Parameters

bank	The bank number.
i	The desired data array element.

Returns

The data entry as an int.

public int getElem (int i)

Returns the requested data array element from the first (default) bank as an int.

Parameters

i	The desired data array element.

Returns

The data entry as an int.

public double getElemDouble (int bank, int i)

Returns the requested data array element from the specified bank as a double.

Parameters

bank	The bank number.
i	The desired data array element.

Returns

The data entry as a double.

public double getElemDouble (int i)

Returns the requested data array element from the first (default) bank as a double.

Parameters

i	The desired data array element.

Returns

The data entry as a double.

public float getElemFloat (int i)

Returns the requested data array element from the first (default) bank as a float.

Parameters

i	The desired data array element.

Returns

The data entry as a float.

public float getElemFloat (int bank, int i)

Returns the requested data array element from the specified bank as a float.

Parameters

bank	The bank number.
i	The desired data array element.

Returns

The data entry as a float.

public void setElem (int i, int val)

Sets the requested data array element in the first (default) bank to the given int.

Parameters

i	The desired data array element.
val	The value to be set.

public void setElem (int bank, int i, int val)

Sets the requested data array element in the specified bank to the given int.

Parameters

bank	The bank number.
i	The desired data array element.
val	The value to be set.

public void setElemDouble (int i, double val)

Sets the requested data array element in the first (default) bank to the given double.

Parameters

i	The desired data array element.
val	The value to be set.

public void setElemDouble (int bank, int i, double val)

Sets the requested data array element in the specified bank to the given double.

Parameters

bank	The bank number.
i	The desired data array element.
val	The value to be set.

public void setElemFloat (int i, float val)

Sets the requested data array element in the first (default) bank to the given float.

Parameters

i	The desired data array element.
val	The value to be set.

public void setElemFloat (int bank, int i, float val)

Sets the requested data array element in the specified bank to the given float.

Parameters

bank	The bank number.
i	The desired data array element.
val	The value to be set.

Interfaces

Classes

Exceptions

DataBufferDouble

Class Overview

Summary

Public Constructors

public DataBufferDouble (int size)

Parameters

public DataBufferDouble (int size, int numBanks)

Parameters

public DataBufferDouble (double[] dataArray, int size)

Parameters

public DataBufferDouble (double[] dataArray, int size, int offset)

Parameters

public DataBufferDouble (double[][] dataArray, int size)

Parameters

public DataBufferDouble (double[][] dataArray, int size, int[] offsets)

Parameters

Public Methods

public double[][] getBankData ()

Returns

public double[] getData (int bank)

Parameters

Returns

public double[] getData ()

Returns

public int getElem (int bank, int i)

Parameters

Returns

See Also

public int getElem (int i)

Parameters

Returns

See Also

public double getElemDouble (int bank, int i)

Parameters

Returns

See Also

public double getElemDouble (int i)

Parameters

Returns

See Also

public float getElemFloat (int i)

Parameters

Returns

See Also

public float getElemFloat (int bank, int i)

Parameters

Returns

See Also

public void setElem (int i, int val)

Parameters

See Also

public void setElem (int bank, int i, int val)

Parameters

See Also

public void setElemDouble (int i, double val)

Parameters

See Also

public void setElemDouble (int bank, int i, double val)

Parameters

See Also

public void setElemFloat (int i, float val)

Parameters

See Also

public void setElemFloat (int bank, int i, float val)

Parameters

See Also