| java.lang.Object
 com.sun.media.imageioimpl.plugins.jpeg2000.RenderedImageSrc
| Method Summary | |
| final public DataBlk | getCompData(DataBlk blk, int c)
Returns, in the blk argument, a block of image data containing the
specifed rectangular area, in the specified component. | | public int | getCompHeight(int c)
Returns the height in pixels of the specified component in the current
tile. | | public int | getCompImgHeight(int c)
Returns the height in pixels of the specified component in the overall
image. | | public int | getCompImgWidth(int c)
Returns the width in pixels of the specified component in the overall
image. | | public int | getCompSubsX(int c)
Returns the component subsampling factor in the horizontal direction,
for the specified component. | | public int | getCompSubsY(int c)
Returns the component subsampling factor in the vertical direction, for
the specified component. | | public int | getCompULX(int c)
Returns the horizontal coordinate of the upper-left corner of the
active tile, with respect to the canvas origin, in the component
coordinates, for the specified component. | | public int | getCompULY(int c)
Returns the vertical coordinate of the upper-left corner of the active
tile, with respect to the canvas origin, in the component coordinates,
for the specified component. | | public int | getCompWidth(int n)
Returns the width in pixels of the specified component in the current
tile. | | public int | getFixedPoint(int c)
Returns the position of the fixed point in the specified component
(i.e. | | public int | getImgHeight()
Returns the overall height of the image in pixels. | | public int | getImgULX()
Returns the horizontal coordinate of the image origin, the top-left
corner, in the canvas system, on the reference grid. | | public int | getImgULY()
Returns the vertical coordinate of the image origin, the top-left
corner, in the canvas system, on the reference grid. | | public int | getImgWidth()
Returns the overall width of the image in pixels. | | final public DataBlk | getInternCompData(DataBlk blk, int c)
Returns, in the blk argument, the block of image data containing the
specifed rectangular area, in the specified component. | | public int | getNomRangeBits(int c)
Returns the number of bits corresponding to the nominal range of the
data in the specified component. | | public int | getNomTileHeight()
| | public int | getNomTileWidth()
| | public int | getNumComps()
Returns the number of components in the image. | | public Point | getNumTiles(Point co)
Returns the number of tiles in the horizontal and vertical
directions.
Parameters:
co - If not null this object is used to return the information. | | public int | getNumTiles()
Returns the total number of tiles in the image. | | public Point | getTile(Point co)
Returns the coordinates of the current tile. | | public int | getTileCompHeight(int t, int c)
| | public int | getTileCompWidth(int t, int c)
| | public int | getTileGridXOffset()
| | public int | getTileGridYOffset()
| | public int | getTileHeight()
Returns the overall height of the current tile in pixels.
The total image height in pixels. | | public int | getTileIdx()
Returns the index of the current tile, relative to a standard scan-line
order. | | public Point | getTileOff(Point p, int c)
Returns the horizontal and vertical offset of the upper-left corner of
the current tile, in the specified component, relative to the canvas
origin, in the component coordinates (not in the reference grid
coordinates). | | public int | getTilePartULX()
| | public int | getTilePartULY()
| | public int | getTileWidth()
Returns the width of the current tile in pixels. | | public boolean | isOrigSigned(int c)
Returns true if the data read was originally signed in the specified
component, false if not. | | public void | nextTile()
Advances to the next tile, in standard scan-line order (by rows then
columns). | | public void | setTile(int x, int y)
Changes the current tile, given the new coordinates. |
| minXminY | | int minXminY(Code) | | The destination upper-left corner
|
| scaleXscaleYxOffsetyOffset | | int scaleXscaleYxOffsetyOffset(Code) | | The source -> destination transformation
|
| sourceBands | | int[] sourceBands(Code) | | The source bands to be encoded.
|
| tileHeight | | int tileHeight(Code) | | The tile height for encoding
|
| tileWidth | | int tileWidth(Code) | | The tile width for encoding
|
| tileXOffsettileYOffset | | int tileXOffsettileYOffset(Code) | | The tile grid offset for encoding
|
| RenderedImageSrc | | public RenderedImageSrc(Raster raster, J2KImageWriteParamJava param, J2KImageWriter writer)(Code) | | Creates RenderedImageSrc for encoding a Raster.
Parameters:
raster - The Raster to be encoded.
Parameters:
param - The J2KImageWriteParamJava used in encoding.
Parameters:
writer - The J2KImageWriter performs the encoding.
Parameters:
IOException - If an error occurs while opening the file. |
| RenderedImageSrc | | public RenderedImageSrc(RenderedImage src, J2KImageWriteParamJava param, J2KImageWriter writer)(Code) | | Creates RenderedImageSrc for encoding a
RenderedImage.
Parameters:
src - The RenderedImage to be encoded.
Parameters:
param - The J2KImageWriteParamJava used in encoding.
Parameters:
writer - The J2KImageWriter performs the encoding.
Parameters:
IOException - If an error occurs while opening the file. |
| getCompData | | final public DataBlk getCompData(DataBlk blk, int c)(Code) | | Returns, in the blk argument, a block of image data containing the
specifed rectangular area, in the specified component. The data is
returned, as a copy of the internal data, therefore the returned data
can be modified "in place".
After being read the coefficients are level shifted by subtracting
2^(nominal bit range - 1)
The rectangular area to return is specified by the 'ulx', 'uly', 'w'
and 'h' members of the 'blk' argument, relative to the current
tile. These members are not modified by this method. The 'offset' of
the returned data is 0, and the 'scanw' is the same as the block's
width. See the 'DataBlk' class.
If the data array in 'blk' is 'null', then a new one is created. If
the data array is not 'null' then it is reused, and it must be large
enough to contain the block's data. Otherwise an 'ArrayStoreException'
or an 'IndexOutOfBoundsException' is thrown by the Java system.
The returned data has its 'progressive' attribute unset
(i.e. false).
When an I/O exception is encountered the JJ2KExceptionHandler is
used. The exception is passed to its handleException method. The action
that is taken depends on the action that has been registered in
JJ2KExceptionHandler. See JJ2KExceptionHandler for details.
Parameters:
blk - Its coordinates and dimensions specify the area toreturn. If it contains a non-null data array, then it must have thecorrect dimensions. If it contains a null data array a new one iscreated. The fields in this object are modified to return the data.
Parameters:
c - The index of the component from which to get the data. Only0,1 and 2 are valid. The requested DataBlk
See Also: RenderedImageSrc.getInternCompData
See Also: JJ2KExceptionHandler |
| getCompHeight | | public int getCompHeight(int c)(Code) | | Returns the height in pixels of the specified component in the current
tile. This default implementation assumes no tiling and no component
subsampling (i.e., all components, or components, have the same
dimensions in pixels).
Parameters:
c - The index of the component, from 0 to C-1. The height in pixels of component c in the currenttile. |
| getCompImgHeight | | public int getCompImgHeight(int c)(Code) | | Returns the height in pixels of the specified component in the overall
image. This default implementation assumes no component, or component,
subsampling (i.e. all components have the same dimensions in pixels).
Parameters:
c - The index of the component, from 0 to C-1. The height in pixels of component c in the overallimage. |
| getCompImgWidth | | public int getCompImgWidth(int c)(Code) | | Returns the width in pixels of the specified component in the overall
image. This default implementation assumes no component, or component,
subsampling (i.e. all components have the same dimensions in pixels).
Parameters:
c - The index of the component, from 0 to C-1. The width in pixels of component c in the overallimage. |
| getCompSubsX | | public int getCompSubsX(int c)(Code) | | Returns the component subsampling factor in the horizontal direction,
for the specified component. This is, approximately, the ratio of
dimensions between the reference grid and the component itself, see the
'ImgData' interface desription for details.
Parameters:
c - The index of the component (between 0 and C-1) The horizontal subsampling factor of component 'c'
See Also: ImgData |
| getCompSubsY | | public int getCompSubsY(int c)(Code) | | Returns the component subsampling factor in the vertical direction, for
the specified component. This is, approximately, the ratio of
dimensions between the reference grid and the component itself, see the
'ImgData' interface desription for details.
Parameters:
c - The index of the component (between 0 and C-1) The vertical subsampling factor of component 'c'
See Also: ImgData |
| getCompULX | | public int getCompULX(int c)(Code) | | Returns the horizontal coordinate of the upper-left corner of the
active tile, with respect to the canvas origin, in the component
coordinates, for the specified component.
Parameters:
c - The index of the component (between 0 and C-1) The horizontal coordinate of the upper-left corner of theactive tile, with respect to the canvas origin, for component 'c', inthe component coordinates. |
| getCompULY | | public int getCompULY(int c)(Code) | | Returns the vertical coordinate of the upper-left corner of the active
tile, with respect to the canvas origin, in the component coordinates,
for the specified component.
Parameters:
c - The index of the component (between 0 and C-1) The vertical coordinate of the upper-left corner of the activetile, with respect to the canvas origin, for component 'c', in thecomponent coordinates. |
| getCompWidth | | public int getCompWidth(int n)(Code) | | Returns the width in pixels of the specified component in the current
tile. This default implementation assumes no tiling and no component
subsampling (i.e., all components, or components, have the same
dimensions in pixels).
Parameters:
c - The index of the component, from 0 to C-1. The width in pixels of component n in the currenttile. |
| getFixedPoint | | public int getFixedPoint(int c)(Code) | | Returns the position of the fixed point in the specified component
(i.e. the number of fractional bits), which is always 0 for this
ImgReader.
Parameters:
c - The index of the component. The position of the fixed-point (i.e. the number of fractionalbits). Always 0 for this ImgReader. |
| getImgHeight | | public int getImgHeight()(Code) | | Returns the overall height of the image in pixels. This is the image's
height without accounting for any component subsampling or tiling. The
value of h is returned.
The total image's height in pixels. |
| getImgULX | | public int getImgULX()(Code) | | Returns the horizontal coordinate of the image origin, the top-left
corner, in the canvas system, on the reference grid.
The horizontal coordinate of the image origin in the canvassystem, on the reference grid. |
| getImgULY | | public int getImgULY()(Code) | | Returns the vertical coordinate of the image origin, the top-left
corner, in the canvas system, on the reference grid.
The vertical coordinate of the image origin in the canvassystem, on the reference grid. |
| getImgWidth | | public int getImgWidth()(Code) | | Returns the overall width of the image in pixels. This is the image's
width without accounting for any component subsampling or tiling. The
value of w is returned.
The total image's width in pixels. |
| getInternCompData | | final public DataBlk getInternCompData(DataBlk blk, int c)(Code) | | Returns, in the blk argument, the block of image data containing the
specifed rectangular area, in the specified component. The data is
returned, as a reference to the internal data, if any, instead of as a
copy, therefore the returned data should not be modified.
After being read the coefficients are level shifted by subtracting
2^(nominal bit range - 1)
The rectangular area to return is specified by the 'ulx', 'uly', 'w'
and 'h' members of the 'blk' argument, relative to the current
tile. These members are not modified by this method. The 'offset' and
'scanw' of the returned data can be arbitrary. See the 'DataBlk' class.
If the data array in blk is null, then a new one
is created if necessary. The implementation of this interface may
choose to return the same array or a new one, depending on what is more
efficient. Therefore, the data array in blk prior to the
method call should not be considered to contain the returned data, a
new array may have been created. Instead, get the array from
blk after the method has returned.
The returned data always has its 'progressive' attribute unset
(i.e. false).
When an I/O exception is encountered the JJ2KExceptionHandler is
used. The exception is passed to its handleException method. The action
that is taken depends on the action that has been registered in
JJ2KExceptionHandler. See JJ2KExceptionHandler for details.
This method implements buffering for the 3 components: When the
first one is asked, all the 3 components are read and stored until they
are needed.
Parameters:
blk - Its coordinates and dimensions specify the area toreturn. Some fields in this object are modified to return the data.
Parameters:
c - The index of the component from which to get the data. Only 0,1 and 3 are valid. The requested DataBlk
See Also: RenderedImageSrc.getCompData
See Also: JJ2KExceptionHandler |
| getNomRangeBits | | public int getNomRangeBits(int c)(Code) | | Returns the number of bits corresponding to the nominal range of the
data in the specified component. This is the value rb (range bits) that
was specified in the constructor, which normally is 8 for non bilevel
data, and 1 for bilevel data.
If this number is b then the nominal range is between
-2^(b-1) and 2^(b-1)-1, since unsigned data is level shifted to have a
nominal avergae of 0.
Parameters:
c - The index of the component. The number of bits corresponding to the nominal range of thedata. For floating-point data this value is not applicable and thereturn value is undefined. |
| getNomTileHeight | | public int getNomTileHeight()(Code) | | |
| getNomTileWidth | | public int getNomTileWidth()(Code) | | |
| getNumComps | | public int getNumComps()(Code) | | Returns the number of components in the image. The value of nc
is returned.
The number of components in the image. |
| getNumTiles | | public Point getNumTiles(Point co)(Code) | | Returns the number of tiles in the horizontal and vertical
directions.
Parameters:
co - If not null this object is used to return the information. Ifnull a new one is created and returned. The number of tiles in the horizontal (Point.x) and vertical(Point.y) directions. |
| getNumTiles | | public int getNumTiles()(Code) | | Returns the total number of tiles in the image. This default
implementation assumes no tiling, so 1 is always returned.
The total number of tiles in the image. |
| getTile | | public Point getTile(Point co)(Code) | | Returns the coordinates of the current tile. This default
implementation assumes no-tiling, so (0,0) is returned.
Parameters:
co - If not null this object is used to return the information. Ifnull a new one is created and returned. The current tile's coordinates. |
| getTileCompHeight | | public int getTileCompHeight(int t, int c)(Code) | | |
| getTileCompWidth | | public int getTileCompWidth(int t, int c)(Code) | | |
| getTileGridXOffset | | public int getTileGridXOffset()(Code) | | |
| getTileGridYOffset | | public int getTileGridYOffset()(Code) | | |
| getTileHeight | | public int getTileHeight()(Code) | | Returns the overall height of the current tile in pixels.
The total image height in pixels. |
| getTileIdx | | public int getTileIdx()(Code) | | Returns the index of the current tile, relative to a standard scan-line
order.
The current tile's index (starts at 0). |
| getTileOff | | public Point getTileOff(Point p, int c)(Code) | | Returns the horizontal and vertical offset of the upper-left corner of
the current tile, in the specified component, relative to the canvas
origin, in the component coordinates (not in the reference grid
coordinates). These are the coordinates of the current tile's (not
active tile) upper-left corner relative to the canvas.
Parameters:
co - If not null the object is used to return the values, if nulla new one is created and returned.
Parameters:
c - The index of the component (between 0 and C-1) The horizontal and vertical offsets of the upper-left corner ofthe current tile, for the specified component, relative to the canvasorigin, in the component coordinates. |
| getTilePartULX | | public int getTilePartULX()(Code) | | |
| getTilePartULY | | public int getTilePartULY()(Code) | | |
| getTileWidth | | public int getTileWidth()(Code) | | Returns the width of the current tile in pixels.
The total image width in pixels. |
| isOrigSigned | | public boolean isOrigSigned(int c)(Code) | | Returns true if the data read was originally signed in the specified
component, false if not. This method always returns false since PPM
data is always unsigned.
Parameters:
c - The index of the component, from 0 to N-1. always false, since PPM data is always unsigned. |
| nextTile | | public void nextTile()(Code) | | Advances to the next tile, in standard scan-line order (by rows then
columns).
|
| setTile | | public void setTile(int x, int y)(Code) | | Changes the current tile, given the new coordinates.
Parameters:
x - The horizontal coordinate of the tile.
Parameters:
y - The vertical coordinate of the new tile. |
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