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Java Source Code / Java Documentation » 6.0 JDK Core » AWT » java.awt.image

Source Cross Reference Class Diagram Java Document (Java Doc)

java.awt.image .DataBufferDouble

DataBufferDouble
final public class DataBufferDouble extends DataBuffer (Code)
	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. since: 1.4

Field Summary
double	bankdata The array of data banks.
double	data A reference to the default data bank.

Constructor Summary
public	DataBufferDouble(int size) Constructs a `double`-based `DataBuffer` with a specified size.
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.
public	DataBufferDouble(double dataArray, int size) Constructs a `double`-based `DataBuffer` with the specified data array.
public	DataBufferDouble(double dataArray, int size, int offset) Constructs a `double`-based `DataBuffer` with the specified data array.
public	DataBufferDouble(double dataArray, int size) Constructs a `double`-based `DataBuffer` with the specified data arrays.
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.

Method Summary
public double[][]	getBankData() Returns the data array for all banks.
public double[]	getData() Returns the default (first) `double` data array.
public double[]	getData(int bank) Returns the data array for the specified bank.
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.
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. Parameters: i - The desired data array element.
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.
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. Parameters: i - The desired data array element.
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.
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. Parameters: i - The desired data array element.
public void	setElem(int i, int val) Sets the requested data array element in the first (default) bank to the given `int`.
public void	setElem(int bank, int i, int val) Sets the requested data array element in the specified bank to the given `int`.
public void	setElemDouble(int i, double val) Sets the requested data array element in the first (default) bank to the given `double`.
public void	setElemDouble(int bank, int i, double val) Sets the requested data array element in the specified bank to the given `double`.
public void	setElemFloat(int i, float val) Sets the requested data array element in the first (default) bank to the given `float`.
public void	setElemFloat(int bank, int i, float val) Sets the requested data array element in the specified bank to the given `float`.

Field Detail

bankdata
double bankdata(Code)
	The array of data banks.

data
double data(Code)
	A reference to the default data bank.

Constructor Detail

DataBufferDouble
public DataBufferDouble(int size)(Code)
	Constructs a `double`-based `DataBuffer` with a specified size. Parameters: size - The number of elements in the `DataBuffer`.

DataBufferDouble
public DataBufferDouble(int size, int numBanks)(Code)
	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`. Parameters: numBanks - The number of banks in the `DataBuffer`.

DataBufferDouble
public DataBufferDouble(double dataArray, int size)(Code)
	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 thefirst and only bank of this `DataBuffer`. Parameters: size - The number of elements of the array to be used.

DataBufferDouble
public DataBufferDouble(double dataArray, int size, int offset)(Code)
	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 thefirst and only bank of this `DataBuffer`. Parameters: size - The number of elements of the array to be used. Parameters: offset - The offset of the first element of the arraythat will be used.

DataBufferDouble
public DataBufferDouble(double dataArray, int size)(Code)
	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 beused as the banks of this `DataBuffer`. Parameters: size - The number of elements of each array to be used.

DataBufferDouble
public DataBufferDouble(double dataArray, int size, int offsets)(Code)
	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 beused as the banks of this `DataBuffer`. Parameters: size - The number of elements of each array to be used. Parameters: offsets - An array of integer offsets, one for each bank.

Method Detail

getBankData
public double[][] getBankData()(Code)
	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). all data arrays from this data buffer.

getData
public double[] getData()(Code)
	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). the first double data array.

getData
public double[] getData(int bank)(Code)
	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 the data array specified by `bank`.

getElem
public int getElem(int i)(Code)
	Returns the requested data array element from the first (default) bank as an `int`. Parameters: i - The desired data array element. The data entry as an `int`. See Also: DataBufferDouble.setElem(int,int) See Also: DataBufferDouble.setElem(int,int,int)

getElem
public int getElem(int bank, int i)(Code)
	Returns the requested data array element from the specified bank as an `int`. Parameters: bank - The bank number. Parameters: i - The desired data array element. The data entry as an `int`. See Also: DataBufferDouble.setElem(int,int) See Also: DataBufferDouble.setElem(int,int,int)

getElemDouble
public double getElemDouble(int i)(Code)
	Returns the requested data array element from the first (default) bank as a `double`. Parameters: i - The desired data array element. The data entry as a `double`. See Also: DataBufferDouble.setElemDouble(int,double) See Also: See Also: DataBufferDouble.setElemDouble(int,int,double)

getElemDouble
public double getElemDouble(int bank, int i)(Code)
	Returns the requested data array element from the specified bank as a `double`. Parameters: bank - The bank number. Parameters: i - The desired data array element. The data entry as a `double`. See Also: DataBufferDouble.setElemDouble(int,double) See Also: DataBufferDouble.setElemDouble(int,int,double)

getElemFloat
public float getElemFloat(int i)(Code)
	Returns the requested data array element from the first (default) bank as a `float`. Parameters: i - The desired data array element. The data entry as a `float`. See Also: DataBufferDouble.setElemFloat(int,float) See Also: DataBufferDouble.setElemFloat(int,int,float)

getElemFloat
public float getElemFloat(int bank, int i)(Code)
	Returns the requested data array element from the specified bank as a `float`. Parameters: bank - The bank number. Parameters: i - The desired data array element. The data entry as a `float`. See Also: DataBufferDouble.setElemFloat(int,float) See Also: DataBufferDouble.setElemFloat(int,int,float)

setElem
public void setElem(int i, int val)(Code)
	Sets the requested data array element in the first (default) bank to the given `int`. Parameters: i - The desired data array element. Parameters: val - The value to be set. See Also: DataBufferDouble.getElem(int) See Also: DataBufferDouble.getElem(int,int)

setElem
public void setElem(int bank, int i, int val)(Code)
	Sets the requested data array element in the specified bank to the given `int`. Parameters: bank - The bank number. Parameters: i - The desired data array element. Parameters: val - The value to be set. See Also: DataBufferDouble.getElem(int) See Also: DataBufferDouble.getElem(int,int)

setElemDouble
public void setElemDouble(int i, double val)(Code)
	Sets the requested data array element in the first (default) bank to the given `double`. Parameters: i - The desired data array element. Parameters: val - The value to be set. See Also: DataBufferDouble.getElemDouble(int) See Also: DataBufferDouble.getElemDouble(int,int)

setElemDouble
public void setElemDouble(int bank, int i, double val)(Code)
	Sets the requested data array element in the specified bank to the given `double`. Parameters: bank - The bank number. Parameters: i - The desired data array element. Parameters: val - The value to be set. See Also: DataBufferDouble.getElemDouble(int) See Also: See Also: DataBufferDouble.getElemDouble(int,int)

setElemFloat
public void setElemFloat(int i, float val)(Code)
	Sets the requested data array element in the first (default) bank to the given `float`. Parameters: i - The desired data array element. Parameters: val - The value to be set. See Also: DataBufferDouble.getElemFloat(int) See Also: DataBufferDouble.getElemFloat(int,int)

setElemFloat
public void setElemFloat(int bank, int i, float val)(Code)
	Sets the requested data array element in the specified bank to the given `float`. Parameters: bank - The bank number. Parameters: i - The desired data array element. Parameters: val - The value to be set. See Also: DataBufferDouble.getElemFloat(int) See Also: See Also: DataBufferDouble.getElemFloat(int,int)

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