Java java.awt.image Class DataBufferFloat（JDK8）

Constructor Detail

• DataBufferFloat

  public DataBufferFloat(int size)

  Constructs a float-based DataBuffer with a specified size.

  Parameters:

  size - The number of elements in the DataBuffer.

• DataBufferFloat

  public DataBufferFloat(int size,
                         int numBanks)

  Constructs a float-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.

• DataBufferFloat

  public DataBufferFloat(float[] dataArray,
                         int size)

  Constructs a float-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 floats to be used as the first and only bank of this DataBuffer.

  size - The number of elements of the array to be used.

• DataBufferFloat

  public DataBufferFloat(float[] dataArray,
                         int size,
                         int offset)

  Constructs a float-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 floats 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.

• DataBufferFloat

  public DataBufferFloat(float[][] dataArray,
                         int size)

  Constructs a float-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 floats to be used as the banks of this DataBuffer.

  size - The number of elements of each array to be used.

• DataBufferFloat

  public DataBufferFloat(float[][] dataArray,
                         int size,
                         int[] offsets)

  Constructs a float-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 floats 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.

Method Detail

• getData

  public float[] getData()

  Returns the default (first) float 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 float data array.

• getData

  public float[] 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.

• getBankData

  public float[][] 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 for this data buffer.

• getElem

  public int getElem(int i)

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

  Overrides:

  getElem in class DataBuffer

  Parameters:

  i - The desired data array element.

  Returns:

  The data entry as an int.

  See Also:

  setElem(int, int), setElem(int, int, int)

• getElem

  public int getElem(int bank,
                     int i)

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

  Specified by:

  getElem in class DataBuffer

  Parameters:

  bank - The bank number.

  i - The desired data array element.

  Returns:

  The data entry as an int.

  See Also:

  setElem(int, int), setElem(int, int, int)

• setElem

  public void setElem(int i,
                      int val)

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

  Overrides:

  setElem in class DataBuffer

  Parameters:

  i - The desired data array element.

  val - The value to be set.

  See Also:

  getElem(int), getElem(int, int)

• setElem

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

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

  Specified by:

  setElem in class DataBuffer

  Parameters:

  bank - The bank number.

  i - The desired data array element.

  val - The value to be set.

  See Also:

  getElem(int), getElem(int, int)

• getElemFloat

  public float getElemFloat(int i)

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

  Overrides:

  getElemFloat in class DataBuffer

  Parameters:

  i - The desired data array element.

  Returns:

  The data entry as a float.

  See Also:

  setElemFloat(int, float), setElemFloat(int, int, float)

• getElemFloat

  public float getElemFloat(int bank,
                            int i)

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

  Overrides:

  getElemFloat in class DataBuffer

  Parameters:

  bank - The bank number.

  i - The desired data array element.

  Returns:

  The data entry as a float.

  See Also:

  setElemFloat(int, float), setElemFloat(int, int, float)

• setElemFloat

  public void setElemFloat(int i,
                           float val)

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

  Overrides:

  setElemFloat in class DataBuffer

  Parameters:

  i - The desired data array element.

  val - The value to be set.

  See Also:

  getElemFloat(int), getElemFloat(int, int)

• setElemFloat

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

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

  Overrides:

  setElemFloat in class DataBuffer

  Parameters:

  bank - The bank number.

  i - The desired data array element.

  val - The value to be set.

  See Also:

  getElemFloat(int), getElemFloat(int, int)

• getElemDouble

  public double getElemDouble(int i)

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

  Overrides:

  getElemDouble in class DataBuffer

  Parameters:

  i - The desired data array element.

  Returns:

  The data entry as a double.

  See Also:

  setElemDouble(int, double), setElemDouble(int, int, double)

• getElemDouble

  public double getElemDouble(int bank,
                              int i)

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

  Overrides:

  getElemDouble in class DataBuffer

  Parameters:

  bank - The bank number.

  i - The desired data array element.

  Returns:

  The data entry as a double.

  See Also:

  setElemDouble(int, double), setElemDouble(int, int, double)

• setElemDouble

  public void setElemDouble(int i,
                            double val)

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

  Overrides:

  setElemDouble in class DataBuffer

  Parameters:

  i - The desired data array element.

  val - The value to be set.

  See Also:

  getElemDouble(int), getElemDouble(int, int)

• setElemDouble

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

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

  Overrides:

  setElemDouble in class DataBuffer

  Parameters:

  bank - The bank number.

  i - The desired data array element.

  val - The value to be set.

  See Also:

  getElemDouble(int), getElemDouble(int, int)