Constructor Detail

• NioImageBuffer

  public NioImageBuffer(int width,
                        int height,
                        NioImageBuffer.ImageType imageType)

  Constructs an NIO image buffer of the specified size and type. A direct NIO buffer of the correct type (ByteBuffer or IntBuffer) and size to match the input parameters is allocated.

  Parameters:

  width - width of the image

  height - height of the image

  imageType - type of the image.

  Throws:

  IllegalArgumentException - if width < 1 or height < 1

  NullPointerException - if imageType is null

• NioImageBuffer

  public NioImageBuffer(int width,
                        int height,
                        NioImageBuffer.ImageType imageType,
                        Buffer dataBuffer)

  Constructs an NIO image buffer of the specified size and type, using the specified dataBuffer. The the byte order of the specified dataBuffer must match the native byte order of the underlying platform. For best performance, the NIO buffer should be a direct buffer.

  Parameters:

  width - width of the image

  height - height of the image

  imageType - type of the image.

  dataBuffer - an NIO buffer of the correct type (ByteBuffer or IntBuffer) to match the specified imageType. This constructor will create a new view of the buffer, and will call rewind on that view, such that elements 0 through dataBuffer.limit()-1 will be available internally. The number of elements in the buffer must be exactly width*height*numElementsPerPixel, where numElementsPerPixel is 3 for TYPE_3BYTE_BGR and TYPE_3BYTE_RGB, 4 for TYPE_4BYTE_ABGR and TYPE_4BYTE_RGBA, and 1 for all other types.

  Throws:

  IllegalArgumentException - if width < 1 or height < 1

  NullPointerException - if imageType or dataBuffer is null

  IllegalArgumentException - if the type of the dataBuffer does not match the imageType

  IllegalArgumentException - if dataBuffer.limit() != width*height*numElementsPerPixel

  IllegalArgumentException - if the byte order of the specified dataBuffer does not match the native byte order of the underlying platform.

Method Detail

• getWidth

  public int getWidth()

  Gets the width of this data buffer.

  Returns:

  the width of this data buffer.

• getHeight

  public int getHeight()

  Gets the height of this data buffer.

  Returns:

  the width of this data buffer.

• getImageType

  public NioImageBuffer.ImageType getImageType()

  Gets the image type of this data buffer.

  Returns:

  the image type of this data buffer.

• setDataBuffer

  public void setDataBuffer(Buffer dataBuffer)

  Sets the data buffer to the specified input data buffer. The the byte order of the specified dataBuffer must match the native byte order of the underlying platform. For best performance, the NIO buffer should be a direct buffer.

  Parameters:

  dataBuffer - an NIO buffer of the correct type (ByteBuffer or IntBuffer) to match the imageType of this NioImageBuffer. This method will create a new view of the buffer, and will call rewind on that view, such that elements 0 through dataBuffer.limit()-1 will be available internally. The number of elements in the buffer must be exactly width*height*numElementsPerPixel, where numElementsPerPixel is 3 for TYPE_3BYTE_BGR and TYPE_3BYTE_RGB, 4 for TYPE_4BYTE_ABGR and TYPE_4BYTE_RGBA, and 1 for all other types.

  Throws:

  NullPointerException - if dataBuffer is null

  IllegalArgumentException - if the type of the dataBuffer does not match the imageType

  IllegalArgumentException - if dataBuffer.limit() != width*height*numElementsPerPixel

  IllegalArgumentException - if the byte order of the specified dataBuffer does not match the native byte order of the underlying platform.

• getDataBuffer

  public Buffer getDataBuffer()

  Gets the data buffer to the specified input data buffer.

  Returns:

  a view of the current data buffer for this NIO image buffer. This view will be rewound such that elements 0 through dataBuffer.limit()-1 are available.