MediaLibAccessor (JPEG2000 support for Java Advanced Imaging Image I/O Tools API 1.2-pre-dr-b04-2014-09-13 API)

java.lang.Object
- com.sun.media.imageioimpl.plugins.jpeg2000.MediaLibAccessor

```
public class MediaLibAccessor
extends Object
```
An adapter class for presenting image data in a mediaLibImage format, even if the data isn't stored that way. MediaLibAccessor is meant to make the common case (ComponentRasters) and allow them to be accelerated via medialib. Note that unlike RasterAccessor, MediaLibAccessor does not work with all cases. In the event that MediaLibAccessor can not deal with a give collection of Rasters, findCompatibleTag will return the value MediaLibAccessor.TAG_INCOMPATIBLE. OpImages that use MediaLibAccessor should be paired with RIF's which check that findCompatibleTag returns a valid tag before actually constructing the Mlib OpImage.

Field Summary

Fields
Modifier and Type	Field and Description
`protected int[]`	`bandOffsets` The offsets of each band in the src image
`static int`	`BINARY` Flag indicating data are binary.
`static int`	`BINARY_MASK` The bits of a FormatTag associated with binary data.
`static int`	`COPIED` Flag indicating data is a copy of the raster's data.
`static int`	`COPY_MASK` The bits of a FormatTag associated with how dataArrays are obtained.
`static int`	`DATATYPE_MASK` The bits of a FormatTag associated with pixel datatype.
`protected int`	`formatTag` Tag indicating the data type of the data and whether its copied
`static int`	`NONBINARY` Flag indicating data are not binary.
`protected int`	`numBands` The number of bands per pixel in the data array.
`protected Raster`	`raster` The raster that is the source of pixel data.
`protected Rectangle`	`rect` The rectangle of the raster that MediaLibAccessor addresses.
`static int`	`TAG_BYTE_COPIED` FormatTag indicating data in byte arrays and uncopied.
`static int`	`TAG_BYTE_UNCOPIED` FormatTag indicating data in byte arrays and uncopied.
`static int`	`TAG_DOUBLE_COPIED` FormatTag indicating data in double arrays and copied.
`static int`	`TAG_DOUBLE_UNCOPIED` FormatTag indicating data in double arrays and uncopied.
`static int`	`TAG_FLOAT_COPIED` FormatTag indicating data in float arrays and copied.
`static int`	`TAG_FLOAT_UNCOPIED` FormatTag indicating data in float arrays and uncopied.
`static int`	`TAG_INT_COPIED` FormatTag indicating data in short arrays and copied.
`static int`	`TAG_INT_UNCOPIED` FormatTag indicating data in integer arrays and uncopied.
`static int`	`TAG_SHORT_COPIED` FormatTag indicating data in short arrays and copied.
`static int`	`TAG_SHORT_UNCOPIED` FormatTag indicating data in short arrays and uncopied.
`static int`	`TAG_USHORT_COPIED` FormatTag indicating data in unsigned short arrays and copied.
`static int`	`TAG_USHORT_UNCOPIED` FormatTag indicating data in unsigned short arrays and uncopied.
`static int`	`UNCOPIED` Flag indicating data is raster's data.

Constructor Summary

Constructors
Constructor and Description

MediaLibAccessor()

Constructors
Constructor and Description
`MediaLibAccessor()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static int`	`findCompatibleTag(Raster src)` Returns the most efficient FormatTag that is compatible with the destination raster and all source rasters.
`int[]`	`getBandOffsets()` Returns the bandOffsets.
`int`	`getDataType()` Returns the data type of the RasterAccessor object.
`double[]`	`getDoubleParameters(int band, double[] params)` Returns parameters in the appropriate order if MediaLibAccessor has reordered the bands or is attempting to make a BandSequential image look like multiple PixelSequentialImages
`int[][]`	`getIntArrayParameters(int band, int[][] params)` Returns parameters in the appropriate order if MediaLibAccessor has reordered the bands or is attempting to make a BandSequential image look like multiple PixelSequentialImages
`int[]`	`getIntParameters(int band, int[] params)` Returns parameters in the appropriate order if MediaLibAccessor has reordered the bands or is attempting to make a BandSequential image look like multiple PixelSequentialImages
`boolean`	`isBinary()` Returns `true` if the `MediaLibAccessor` represents binary data.
`boolean`	`isDataCopy()` Returns true if the MediaLibAccessors's data is copied from it's raster.
`static boolean`	`isPixelSequential(SampleModel sm)` Determines if the SampleModel stores data in a way that can be represented by a mediaLibImage without copying

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - COPY_MASK
```
public static final int COPY_MASK
```
    The bits of a FormatTag associated with how dataArrays are obtained.
    
    See Also:
    
    Constant Field Values
  - UNCOPIED
```
public static final int UNCOPIED
```
    Flag indicating data is raster's data.
    
    See Also:
    
    Constant Field Values
  - COPIED
```
public static final int COPIED
```
    Flag indicating data is a copy of the raster's data.
    
    See Also:
    
    Constant Field Values
  - DATATYPE_MASK
```
public static final int DATATYPE_MASK
```
    The bits of a FormatTag associated with pixel datatype.
    
    See Also:
    
    Constant Field Values
  - BINARY_MASK
```
public static final int BINARY_MASK
```
    The bits of a FormatTag associated with binary data.
    
    See Also:
    
    Constant Field Values
  - NONBINARY
```
public static final int NONBINARY
```
    Flag indicating data are not binary.
    
    See Also:
    
    Constant Field Values
  - BINARY
```
public static final int BINARY
```
    Flag indicating data are binary.
    
    See Also:
    
    Constant Field Values
  - TAG_BYTE_UNCOPIED
```
public static final int TAG_BYTE_UNCOPIED
```
    FormatTag indicating data in byte arrays and uncopied.
    
    See Also:
    
    Constant Field Values
  - TAG_USHORT_UNCOPIED
```
public static final int TAG_USHORT_UNCOPIED
```
    FormatTag indicating data in unsigned short arrays and uncopied.
    
    See Also:
    
    Constant Field Values
  - TAG_SHORT_UNCOPIED
```
public static final int TAG_SHORT_UNCOPIED
```
    FormatTag indicating data in short arrays and uncopied.
    
    See Also:
    
    Constant Field Values
  - TAG_INT_UNCOPIED
```
public static final int TAG_INT_UNCOPIED
```
    FormatTag indicating data in integer arrays and uncopied.
    
    See Also:
    
    Constant Field Values
  - TAG_FLOAT_UNCOPIED
```
public static final int TAG_FLOAT_UNCOPIED
```
    FormatTag indicating data in float arrays and uncopied.
    
    See Also:
    
    Constant Field Values
  - TAG_DOUBLE_UNCOPIED
```
public static final int TAG_DOUBLE_UNCOPIED
```
    FormatTag indicating data in double arrays and uncopied.
    
    See Also:
    
    Constant Field Values
  - TAG_BYTE_COPIED
```
public static final int TAG_BYTE_COPIED
```
    FormatTag indicating data in byte arrays and uncopied.
    
    See Also:
    
    Constant Field Values
  - TAG_USHORT_COPIED
```
public static final int TAG_USHORT_COPIED
```
    FormatTag indicating data in unsigned short arrays and copied.
    
    See Also:
    
    Constant Field Values
  - TAG_SHORT_COPIED
```
public static final int TAG_SHORT_COPIED
```
    FormatTag indicating data in short arrays and copied.
    
    See Also:
    
    Constant Field Values
  - TAG_INT_COPIED
```
public static final int TAG_INT_COPIED
```
    FormatTag indicating data in short arrays and copied.
    
    See Also:
    
    Constant Field Values
  - TAG_FLOAT_COPIED
```
public static final int TAG_FLOAT_COPIED
```
    FormatTag indicating data in float arrays and copied.
    
    See Also:
    
    Constant Field Values
  - TAG_DOUBLE_COPIED
```
public static final int TAG_DOUBLE_COPIED
```
    FormatTag indicating data in double arrays and copied.
    
    See Also:
    
    Constant Field Values
  - raster
```
protected Raster raster
```
    The raster that is the source of pixel data.
  - rect
```
protected Rectangle rect
```
    The rectangle of the raster that MediaLibAccessor addresses.
  - numBands
```
protected int numBands
```
    The number of bands per pixel in the data array.
  - bandOffsets
```
protected int[] bandOffsets
```
    The offsets of each band in the src image
  - formatTag
```
protected int formatTag
```
    Tag indicating the data type of the data and whether its copied
- Constructor Detail
  - MediaLibAccessor
```
public MediaLibAccessor()
```
- Method Detail
  - findCompatibleTag
```
public static int findCompatibleTag(Raster src)
```
    Returns the most efficient FormatTag that is compatible with the destination raster and all source rasters.
    
    Parameters:
    
    srcs - the source Raster; may be null.
    
    dst - the destination Raster.
  - isPixelSequential
```
public static boolean isPixelSequential(SampleModel sm)
```
    Determines if the SampleModel stores data in a way that can be represented by a mediaLibImage without copying
  - isBinary
```
public boolean isBinary()
```
    Returns true if the MediaLibAccessor represents binary data.
  - getDataType
```
public int getDataType()
```
    Returns the data type of the RasterAccessor object. Note that this datatype is not necessarily the same data type as the underlying raster.
  - isDataCopy
```
public boolean isDataCopy()
```
    Returns true if the MediaLibAccessors's data is copied from it's raster.
  - getBandOffsets
```
public int[] getBandOffsets()
```
    Returns the bandOffsets.
  - getIntParameters
```
public int[] getIntParameters(int band,
                              int[] params)
```
    Returns parameters in the appropriate order if MediaLibAccessor has reordered the bands or is attempting to make a BandSequential image look like multiple PixelSequentialImages
  - getIntArrayParameters
```
public int[][] getIntArrayParameters(int band,
                                     int[][] params)
```
    Returns parameters in the appropriate order if MediaLibAccessor has reordered the bands or is attempting to make a BandSequential image look like multiple PixelSequentialImages
  - getDoubleParameters
```
public double[] getDoubleParameters(int band,
                                    double[] params)
```
    Returns parameters in the appropriate order if MediaLibAccessor has reordered the bands or is attempting to make a BandSequential image look like multiple PixelSequentialImages

Class MediaLibAccessor

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

COPY_MASK

UNCOPIED

COPIED

DATATYPE_MASK

BINARY_MASK

NONBINARY

BINARY

TAG_BYTE_UNCOPIED

TAG_USHORT_UNCOPIED

TAG_SHORT_UNCOPIED

TAG_INT_UNCOPIED

TAG_FLOAT_UNCOPIED

TAG_DOUBLE_UNCOPIED

TAG_BYTE_COPIED

TAG_USHORT_COPIED

TAG_SHORT_COPIED

TAG_INT_COPIED

TAG_FLOAT_COPIED

TAG_DOUBLE_COPIED

raster

rect

numBands

bandOffsets

formatTag

Constructor Detail

MediaLibAccessor

Method Detail

findCompatibleTag

isPixelSequential

isBinary

getDataType

isDataCopy

getBandOffsets

getIntParameters

getIntArrayParameters

getDoubleParameters