com.sun.media.imageio.stream

Class RawImageInputStream

java.lang.Object

com.sun.media.imageio.stream.RawImageInputStream

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable, ImageInputStream

public class RawImageInputStream
extends Object
implements ImageInputStream

This class defines the content of the ImageInputStream containing several raw images with the same image type: the number of the images, the image type, the offset for the first sample of each image, and the image size information.

ImageInputStream methods are not commented individually. These methods merely forward the call to the ImageInputStream specified when the RawImageInputStream is constructed.

Field Summary

Fields

Modifier and Type	Field and Description
private Dimension[]	imageDimensions The image sizes.
private long[]	imageOffsets The position of the first sample for each image.
private static String[]	preDefinedColorSpaces
private static int[]	preDefinedTypes
private ImageInputStream	source The wrapperred ImageInputStream.
private ImageTypeSpecifier	type The image type for all the images in the stream.

Constructor Summary

Constructors

Constructor and Description
RawImageInputStream(ImageInputStream source, ImageTypeSpecifier type, long[] imageOffsets, Dimension[] imageDimensions) Constructor.
RawImageInputStream(ImageInputStream source, InputSource xmlSource) Constructor.
RawImageInputStream(ImageInputStream source, SampleModel sampleModel, long[] imageOffsets, Dimension[] imageDimensions) Constructor.

Method Summary

Modifier and Type	Method and Description
void	close()
void	flush()
void	flushBefore(long pos)
private static String	getAttribute(Node node, String name) Gets the attribute from the node.
int	getBitOffset()
private static boolean	getBoolean(Node node, String name) Gets the boolean type attribute.
private static byte[]	getByteArray(Node node, String name) Gets the integer type attribute.
ByteOrder	getByteOrder()
private static ColorSpace	getColorSpace(Node node)
long	getFlushedPosition()
Dimension	getImageDimension(int imageIndex) Retrieves the dimnsion of the imageIndexth image.
long	getImageOffset(int imageIndex) Retrieves the image offset of the imageIndexth image.
ImageTypeSpecifier	getImageType() Retrieves the image type.
private static int	getInt(Node node, String name) Gets the integer type attribute.
private static int[]	getIntArray(Node node, String name) Gets the integer type attribute.
int	getNumImages() Retrieves the number of images in the ImageInputStream.
long	getStreamPosition()
private static int	getTransparency(String s)
boolean	isCached()
boolean	isCachedFile()
boolean	isCachedMemory()
long	length()
void	mark()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
int	readBit()
long	readBits(int numBits)
boolean	readBoolean()
byte	readByte()
void	readBytes(IIOByteBuffer buf, int len)
char	readChar()
double	readDouble()
float	readFloat()
void	readFully(byte[] b)
void	readFully(byte[] b, int off, int len)
void	readFully(char[] c, int off, int len)
void	readFully(double[] d, int off, int len)
void	readFully(float[] f, int off, int len)
void	readFully(int[] i, int off, int len)
void	readFully(long[] l, int off, int len)
void	readFully(short[] s, int off, int len)
int	readInt()
String	readLine()
long	readLong()
short	readShort()
int	readUnsignedByte()
long	readUnsignedInt()
int	readUnsignedShort()
String	readUTF()
void	reset()
void	seek(long pos)
void	setBitOffset(int bitOffset)
void	setByteOrder(ByteOrder byteOrder)
int	skipBytes(int n)
long	skipBytes(long n)

Methods inherited from class java.lang.Object

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

Field Detail

preDefinedColorSpaces

private static final String[] preDefinedColorSpaces

preDefinedTypes

private static final int[] preDefinedTypes

source

private ImageInputStream source

The wrapperred ImageInputStream.

type

private ImageTypeSpecifier type

The image type for all the images in the stream.

imageOffsets

private long[] imageOffsets

The position of the first sample for each image.

imageDimensions

private Dimension[] imageDimensions

The image sizes.

Constructor Detail

RawImageInputStream

public RawImageInputStream(ImageInputStream source,
                           ImageTypeSpecifier type,
                           long[] imageOffsets,
                           Dimension[] imageDimensions)

Constructor.

Parameters:

source - The ImageInputStream containing all the raw images.

type - The ImageTypeSpecifier for all the images in the stream.

imageOffsets - The position of the first sample for each image in the stream.

imageDimensions - The image size for each image in the stream.

Throws:

IllegalArgumentException - If the sizes of imageOffsets and imageDimensions are different or if either array is null.

RawImageInputStream

public RawImageInputStream(ImageInputStream source,
                           SampleModel sampleModel,
                           long[] imageOffsets,
                           Dimension[] imageDimensions)

Constructor.

This constructor is the same as RawImageInputStream(ImageInputStream,ImageTypeSpecifier, long[],Dimension[]) except that a SampleModel is supplied instead of an ImageTypeSpecifier. This constructor creates a ColorModel for the supplied SampleModel and then creates an ImageTypeSpecifier.

Suitable ColorModels are guaranteed to exist for all instances of ComponentSampleModel. For 1- and 3- banded SampleModels, the ColorModel will be opaque. For 2- and 4-banded SampleModels, the output will use alpha transparency which is not premultiplied. 1- and 2-banded data will use a grayscale ColorSpace, and 3- and 4-banded data a sRGB ColorSpace. Data with 5 or more bands will use a ColorSpace which satisfies compatibility constraints but is merely a placeholder and does not perform correct color conversion to and from the C.I.E. XYZ and sRGB color spaces.

An instance of DirectColorModel will be created for instances of SinglePixelPackedSampleModel with no more than 4 bands.

An instance of IndexColorModel will be created for instances of MultiPixelPackedSampleModel. The colormap will be a grayscale ramp with 1 << numberOfBits entries ranging from zero to at most 255.

Parameters:

source - The ImageInputStream containing all the raw images.

sampleModel - The SampleModel for all the images in the stream.

imageOffsets - The position of the first sample for each image in the stream.

imageDimensions - The image size for each image in the stream.

Throws:

IllegalArgumentException - If sampleModel is null.

IllegalArgumentException - If the sizes of imageOffsets and imageDimensions are different or if either array is null.

IllegalArgumentException - If it is not possible to create a ColorModel from the supplied SampleModel.

RawImageInputStream

public RawImageInputStream(ImageInputStream source,
                           InputSource xmlSource)
                    throws SAXException,
                           IOException

Constructor. The xmlSource must adhere to the following DTD:

<!DOCTYPE "com_sun_media_imageio_stream_raw_1.0" [

  <!ELEMENT com_sun_media_imageio_stream_raw_1.0
    (byteOrder?, offset?, width?, height?,
     (ComponentSampleModel |
      MultiPixelPackedSampleModel |
      SinglePixelPackedSampleModel),
     (ComponentColorModel |
      DirectColorModel |
      IndexColorModel)?)>

    <!ATTLIST com_sun_media_imageio_stream_raw_1.0
      xmlns CDATA #FIXED "http://com/sun/media/imageio">

  <!ELEMENT byteOrder (#PCDATA)>
    <!-- Byte order of data stream -->
    <!-- Either "NETWORK" or "REVERSE" -->
    <!-- Data type: String -->

  <!ELEMENT offset (#PCDATA)>
    <!-- Byte offset to the image data in the stream -->
    <!-- Data type: long -->

  <!ELEMENT width (#PCDATA)>
    <!-- Image width; default value is SampleModel width -->
    <!-- Data type: int -->

  <!ELEMENT height (#PCDATA)>
    <!-- Image height; default value is SampleModel height -->
    <!-- Data type: int -->

  <!ELEMENT ComponentSampleModel EMPTY>
    <!-- ComponentSampleModel -->

    <!ATTLIST ComponentSampleModel
      dataType (BYTE | USHORT | SHORT | INT | FLOAT | DOUBLE) #REQUIRED
        <!-- Data type: String -->
      w              CDATA #REQUIRED
        <!-- SampleModel width -->
        <!-- Data type: int -->
      h              CDATA #REQUIRED
        <!-- SampleModel height -->
        <!-- Data type: int -->
      pixelStride    CDATA "1"
        <!-- SampleModel pixel stride -->
        <!-- Data type: int -->
      scanlineStride CDATA #REQUIRED
        <!-- SampleModel line stride -->
        <!-- Data type: int -->
      bankIndices    CDATA #IMPLIED
        <!-- SampleModel bank indices -->
        <!-- Data type: int array -->
      bandOffsets    CDATA #REQUIRED>
        <!-- SampleModel band offsets -->
        <!-- Data type: int array -->

  <!ELEMENT MultiPixelPackedSampleModel EMPTY>
    <!-- MultiPixelPackedSampleModel -->

    <!ATTLIST MultiPixelPackedSampleModel
      dataType       (BYTE | USHORT | INT) #REQUIRED
        <!-- Data type: String -->
      w              CDATA #REQUIRED
        <!-- SampleModel width -->
        <!-- Data type: int -->
      h              CDATA #REQUIRED
        <!-- SampleModel height -->
        <!-- Data type: int -->
      numberOfBits   CDATA #REQUIRED
        <!-- Number of bits per pixel -->
        <!-- Data type: int -->
      scanlineStride CDATA #REQUIRED
        <!-- SampleModel line stride -->
        <!-- Data type: int -->
      dataBitOffset  CDATA "0">
        <!-- Offset to first valid bit in a line -->
        <!-- Data type: int -->

  <!ELEMENT SinglePixelPackedSampleModel EMPTY>
    <!-- SinglePixelPackedSampleModel -->

    <!ATTLIST SinglePixelPackedSampleModel
      dataType       (BYTE | USHORT | INT) #REQUIRED
        <!-- Data type: String -->
      w              CDATA #REQUIRED
        <!-- SampleModel width -->
        <!-- Data type: int -->
      h              CDATA #REQUIRED
        <!-- SampleModel height -->
        <!-- Data type: int -->
      scanlineStride CDATA #REQUIRED
        <!-- SampleModel line stride -->
        <!-- Data type: int -->
      bitMasks       CDATA #REQUIRED>
        <!-- Masks indicating RGBA positions -->
        <!-- Data type: int -->

  <!ELEMENT ComponentColorModel EMPTY>
    <!-- ComponentColorModel -->

    <!ATTLIST ComponentColorModel
      colorSpace (CIEXYZ | GRAY | LINEAR_RGB | PYCC | sRGB | URL)
                     #REQUIRED
        <!-- A string representing a predefined ColorSpace or a URI
                representing the location of any ICC profile from which
                a ColorSpace may be created. -->
        <!-- Data type: String -->
      bits                 CDATA          #IMPLIED
        <!-- Number of bits per color component -->
        <!-- Data type: int -->
      hasAlpha             (true | false) #REQUIRED
        <!-- Whether an alpha channel is present -->
        <!-- Data type: boolean -->
      isAlphaPremultiplied (true | false) #REQUIRED
        <!-- Whether any alpha channel is premultiplied -->
        <!-- Data type: boolean -->
      transparency         (BITMASK | OPAQUE | TRANSLUCENT) #REQUIRED
        <!-- The type of transparency -->
      transferType (BYTE | USHORT | SHORT | INT | FLOAT | DOUBLE)
                     #REQUIRED>
        <!-- The data transfer type -->

  <!ELEMENT DirectColorModel EMPTY>
    <!-- DirectColorModel -->

    <!ATTLIST DirectColorModel
      colorSpace           (LINEAR_RGB | sRGB | URL) #IMPLIED
        <!-- A string representing a predefined RGB ColorSpace or a
                URL representing the location of any ICC profile from
                which an RGB ColorSpace may be created. -->
        <!-- Data type: String -->
      bits       CDATA #REQUIRED
        <!-- Number of bits per color component -->
        <!-- Data type: int -->
      rmask      CDATA #REQUIRED
        <!-- Bitmask of the red component -->
        <!-- Data type: int -->
      gmask      CDATA #REQUIRED
        <!-- Bitmask of the grenn component -->
        <!-- Data type: int -->
      bmask      CDATA #REQUIRED
        <!-- Bitmask of the blue component -->
        <!-- Data type: int -->
      amask      CDATA "0">
        <!-- Bitmask of the alpha component -->
        <!-- Data type: int -->

  <!ELEMENT IndexColorModel EMPTY>
    <!-- IndexColorModel -->

    <!ATTLIST IndexColorModel
      bits CDATA #REQUIRED
        <!-- Number of bits per color component -->
        <!-- Data type: int -->
      size CDATA #REQUIRED
        <!-- Number of elements in the colormap -->
        <!-- Data type: int -->
      r    CDATA #REQUIRED
        <!-- Red elements of the colormap -->
        <!-- Data type: byte array -->
      g    CDATA #REQUIRED
        <!-- Green elements of the colormap -->
        <!-- Data type: byte array -->
      b    CDATA #REQUIRED
        <!-- Blue elements of the colormap -->
        <!-- Data type: byte array -->
      a    CDATA #IMPLIED>
        <!-- Alpha elements of the colormap -->
        <!-- Data type: byte array -->
]>

Parameters:

source - The ImageInputStream containing all the raw images.

xmlSource - The org.xml.sax.InputSource to provide the xml document in which the stream structure is defined.

Throws:

RuntimeException - If the parse configuration isn't correct.

IllegalArgumentException - If the number of "width" elements isn't the same as the number of "height" elements.

SAXException - If one is thrown in parsing.

IOException - If one is thrown in parsing, or creating color space from a URL.

Method Detail

getAttribute

private static String getAttribute(Node node,
                                   String name)

Gets the attribute from the node.

getBoolean

private static boolean getBoolean(Node node,
                                  String name)

Gets the boolean type attribute.

getInt

private static int getInt(Node node,
                          String name)

Gets the integer type attribute.

getByteArray

private static byte[] getByteArray(Node node,
                                   String name)

Gets the integer type attribute.

getIntArray

private static int[] getIntArray(Node node,
                                 String name)

Gets the integer type attribute.

getTransparency

private static int getTransparency(String s)

getColorSpace

private static ColorSpace getColorSpace(Node node)
                                 throws IOException

Throws:

IOException

getImageType

public ImageTypeSpecifier getImageType()

Retrieves the image type.

Returns:

the image type

getImageOffset

public long getImageOffset(int imageIndex)

Retrieves the image offset of the imageIndexth image.

Parameters:

imageIndex - the index of the image of interest.

Returns:

the offset in the stream to the specified image.

Throws:

IllegalArgumentException - If the provided parameter is out of range.

getImageDimension

public Dimension getImageDimension(int imageIndex)

Retrieves the dimnsion of the imageIndexth image.

Parameters:

imageIndex - the index of the image of interest.

Returns:

the size of the specified image.

Throws:

IllegalArgumentException - If the provided parameter is out of rangle.

getNumImages

public int getNumImages()

Retrieves the number of images in the ImageInputStream.

Returns:

the number of image in the stream.

setByteOrder

public void setByteOrder(ByteOrder byteOrder)

Specified by:

setByteOrder in interface ImageInputStream

getByteOrder

public ByteOrder getByteOrder()

Specified by:

getByteOrder in interface ImageInputStream

read

public int read()
         throws IOException

Specified by:

read in interface ImageInputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Specified by:

read in interface ImageInputStream

Throws:

IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Specified by:

read in interface ImageInputStream

Throws:

IOException

readBytes

public void readBytes(IIOByteBuffer buf,
                      int len)
               throws IOException

Specified by:

readBytes in interface ImageInputStream

Throws:

IOException

readBoolean

public boolean readBoolean()
                    throws IOException

Specified by:

readBoolean in interface DataInput

Specified by:

readBoolean in interface ImageInputStream

Throws:

IOException

readByte

public byte readByte()
              throws IOException

Specified by:

readByte in interface DataInput

Specified by:

readByte in interface ImageInputStream

Throws:

IOException

readUnsignedByte

public int readUnsignedByte()
                     throws IOException

Specified by:

readUnsignedByte in interface DataInput

Specified by:

readUnsignedByte in interface ImageInputStream

Throws:

IOException

readShort

public short readShort()
                throws IOException

Specified by:

readShort in interface DataInput

Specified by:

readShort in interface ImageInputStream

Throws:

IOException

readUnsignedShort

public int readUnsignedShort()
                      throws IOException

Specified by:

readUnsignedShort in interface DataInput

Specified by:

readUnsignedShort in interface ImageInputStream

Throws:

IOException

readChar

public char readChar()
              throws IOException

Specified by:

readChar in interface DataInput

Specified by:

readChar in interface ImageInputStream

Throws:

IOException

readInt

public int readInt()
            throws IOException

Specified by:

readInt in interface DataInput

Specified by:

readInt in interface ImageInputStream

Throws:

IOException

readUnsignedInt

public long readUnsignedInt()
                     throws IOException

Specified by:

readUnsignedInt in interface ImageInputStream

Throws:

IOException

readLong

public long readLong()
              throws IOException

Specified by:

readLong in interface DataInput

Specified by:

readLong in interface ImageInputStream

Throws:

IOException

readFloat

public float readFloat()
                throws IOException

Specified by:

readFloat in interface DataInput

Specified by:

readFloat in interface ImageInputStream

Throws:

IOException

readDouble

public double readDouble()
                  throws IOException

Specified by:

readDouble in interface DataInput

Specified by:

readDouble in interface ImageInputStream

Throws:

IOException

readLine

public String readLine()
                throws IOException

Specified by:

readLine in interface DataInput

Specified by:

readLine in interface ImageInputStream

Throws:

IOException

readUTF

public String readUTF()
               throws IOException

Specified by:

readUTF in interface DataInput

Specified by:

readUTF in interface ImageInputStream

Throws:

IOException

readFully

public void readFully(byte[] b,
                      int off,
                      int len)
               throws IOException

Specified by:

readFully in interface DataInput

Specified by:

readFully in interface ImageInputStream

Throws:

IOException

readFully

public void readFully(byte[] b)
               throws IOException

Specified by:

readFully in interface DataInput

Specified by:

readFully in interface ImageInputStream

Throws:

IOException

readFully

public void readFully(short[] s,
                      int off,
                      int len)
               throws IOException

Specified by:

readFully in interface ImageInputStream

Throws:

IOException

readFully

public void readFully(char[] c,
                      int off,
                      int len)
               throws IOException

Specified by:

readFully in interface ImageInputStream

Throws:

IOException

readFully

public void readFully(int[] i,
                      int off,
                      int len)
               throws IOException

Specified by:

readFully in interface ImageInputStream

Throws:

IOException

readFully

public void readFully(long[] l,
                      int off,
                      int len)
               throws IOException

Specified by:

readFully in interface ImageInputStream

Throws:

IOException

readFully

public void readFully(float[] f,
                      int off,
                      int len)
               throws IOException

Specified by:

readFully in interface ImageInputStream

Throws:

IOException

readFully

public void readFully(double[] d,
                      int off,
                      int len)
               throws IOException

Specified by:

readFully in interface ImageInputStream

Throws:

IOException

getStreamPosition

public long getStreamPosition()
                       throws IOException

Specified by:

getStreamPosition in interface ImageInputStream

Throws:

IOException

getBitOffset

public int getBitOffset()
                 throws IOException

Specified by:

getBitOffset in interface ImageInputStream

Throws:

IOException

setBitOffset

public void setBitOffset(int bitOffset)
                  throws IOException

Specified by:

setBitOffset in interface ImageInputStream

Throws:

IOException

readBit

public int readBit()
            throws IOException

Specified by:

readBit in interface ImageInputStream

Throws:

IOException

readBits

public long readBits(int numBits)
              throws IOException

Specified by:

readBits in interface ImageInputStream

Throws:

IOException

length

public long length()
            throws IOException

Specified by:

length in interface ImageInputStream

Throws:

IOException

skipBytes

public int skipBytes(int n)
              throws IOException

Specified by:

skipBytes in interface DataInput

Specified by:

skipBytes in interface ImageInputStream

Throws:

IOException

skipBytes

public long skipBytes(long n)
               throws IOException

Specified by:

skipBytes in interface ImageInputStream

Throws:

IOException

seek

public void seek(long pos)
          throws IOException

Specified by:

seek in interface ImageInputStream

Throws:

IOException

mark

public void mark()

Specified by:

mark in interface ImageInputStream

reset

public void reset()
           throws IOException

Specified by:

reset in interface ImageInputStream

Throws:

IOException

flushBefore

public void flushBefore(long pos)
                 throws IOException

Specified by:

flushBefore in interface ImageInputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface ImageInputStream

Throws:

IOException

getFlushedPosition

public long getFlushedPosition()

Specified by:

getFlushedPosition in interface ImageInputStream

isCached

public boolean isCached()

Specified by:

isCached in interface ImageInputStream

isCachedMemory

public boolean isCachedMemory()

Specified by:

isCachedMemory in interface ImageInputStream

isCachedFile

public boolean isCachedFile()

Specified by:

isCachedFile in interface ImageInputStream

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface ImageInputStream

Throws:

IOException