net.aerith.misao.image
Class ShortBuffer

java.lang.Object
  |
  +--net.aerith.misao.image.Buffer
        |
        +--net.aerith.misao.image.ShortBuffer

public class ShortBuffer

extends Buffer

The ShortBuffer is a class of short array for an image buffer.

The return value of get and the value for set is between 0 and 65535. If 65537 is passed to set, it is converted to 1. If -1 is passed, it is converted to 65535.

The value in the buffer 0 represents 0, 32767 does 32767, -32768 does 32768, and -1 does 65535.

Field Summary

private short[]

pixels The buffer to keep short values of the image.

Fields inherited from class net.aerith.misao.image.Buffer

signed_flag, size

Constructor Summary

ShortBuffer(Size allocate_size)
Constructs a ShortBuffer, allocates the buffer.

Method Summary

Buffer	cloneBuffer() Creates a clone image buffer.
int	get(int x, int y) Gets pixel value of a specified position.
double	getValue(int x, int y) Gets pixel value of a specified position.
void	inverse() Inverses white and black.
void	read(java.io.DataInput input, Size size) Reads pixel values and set pixel values into the buffer.
void	reverseHorizontally() Reverses left to the right.
void	reverseVertically() Reverses upside down.
void	set(int x, int y, int value) Sets pixel value of a specified position.
void	setValue(int x, int y, double value) Sets pixel value of a specified position.
void	write(java.io.DataOutput output) Write pixel values into the specified stream.

Methods inherited from class net.aerith.misao.image.Buffer

getDataCount, getSize, getValueAt, setSigned

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

pixels

private short[] pixels

The buffer to keep short values of the image.

Constructor Detail

ShortBuffer

public ShortBuffer(Size allocate_size)

Constructs a ShortBuffer, allocates the buffer.

Parameters:

allocate_size - the buffer size.

Method Detail

get

public int get(int x,
               int y)
        throws java.lang.IndexOutOfBoundsException

Gets pixel value of a specified position. The return value is between 0 and 65535.

Parameters:

x - the x position.

y - the y position.

Returns:

the pixel value of the position.

Throws:

java.lang.IndexOutOfBoundsException - if specified position is out of the image area.

set

public void set(int x,
                int y,
                int value)
         throws java.lang.IndexOutOfBoundsException

Sets pixel value of a specified position. The value is must be between 0 and 65535. If 65537 is passed to set, it is converted to 1. If -1 is passed, it is converted to 65535.

Parameters:

x - the x position.

y - the y position.

value - the value to set.

Throws:

java.lang.IndexOutOfBoundsException - if specified position is out of the image area.

getValue

public double getValue(int x,
                       int y)
                throws java.lang.IndexOutOfBoundsException

Gets pixel value of a specified position.

Overrides:

getValue in class Buffer

Parameters:

x - the x position.

y - the y position.

Returns:

the pixel value of the position.

Throws:

java.lang.IndexOutOfBoundsException - if specified position is out of the image area.

setValue

public void setValue(int x,
                     int y,
                     double value)
              throws java.lang.IndexOutOfBoundsException

Sets pixel value of a specified position. The value is forcedly converted into the data type of image buffer.

Overrides:

setValue in class Buffer

Parameters:

x - the x position.

y - the y position.

value - the value to set.

Throws:

java.lang.IndexOutOfBoundsException - if specified position is out of the image area.

read

public void read(java.io.DataInput input,
                 Size size)
          throws java.io.IOException

Reads pixel values and set pixel values into the buffer.

Overrides:

read in class Buffer

Parameters:

input - the input stream pointing to the start of int data.

size - the size of image.

Throws:

java.io.IOException - if I/O error occurs.

write

public void write(java.io.DataOutput output)
           throws java.io.IOException

Write pixel values into the specified stream.

Overrides:

write in class Buffer

Parameters:

output - the output stream.

Throws:

java.io.IOException - if I/O error occurs.

inverse

public void inverse()

Inverses white and black.

Overrides:

inverse in class Buffer

reverseVertically

public void reverseVertically()

Reverses upside down.

Overrides:

reverseVertically in class Buffer

reverseHorizontally

public void reverseHorizontally()

Reverses left to the right.

Overrides:

reverseHorizontally in class Buffer

cloneBuffer

public Buffer cloneBuffer()

Creates a clone image buffer.

Overrides:

cloneBuffer in class Buffer

Returns:

the new clone image buffer.