/*
* #%L
* Fork of JAI Image I/O Tools.
* %%
* Copyright (C) 2008 - 2014 Open Microscopy Environment:
* - Board of Regents of the University of Wisconsin-Madison
* - Glencoe Software, Inc.
* - University of Dundee
* %%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are
* those of the authors and should not be interpreted as representing official
* policies, either expressed or implied, of any organization.
* #L%
*/
/*
* $RCSfile: RawImageInputStream.java,v $
*
*
* Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any
* kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
* EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
* NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
* USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
* ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
* CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
* REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
* INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for
* use in the design, construction, operation or maintenance of any
* nuclear facility.
*
* $Revision: 1.1 $
* $Date: 2005/02/11 05:01:20 $
* $State: Exp $
*/
package com.sun.media.imageio.stream;
import java.awt.Dimension;
import java.awt.Transparency;
import java.awt.color.ColorSpace;
import java.awt.color.ICC_ColorSpace;
import java.awt.color.ICC_Profile;
import java.awt.image.ColorModel;
import java.awt.image.ComponentColorModel;
import java.awt.image.ComponentSampleModel;
import java.awt.image.DirectColorModel;
import java.awt.image.IndexColorModel;
import java.awt.image.MultiPixelPackedSampleModel;
import java.awt.image.SampleModel;
import java.awt.image.SinglePixelPackedSampleModel;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.nio.ByteOrder;
import java.util.StringTokenizer;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.stream.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import com.sun.media.imageioimpl.common.ImageUtil;
/**
* This class defines the content of the <code>ImageInputStream</code>
* 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.
*
* <p><code>ImageInputStream</code> methods are not commented individually.
* These methods merely forward the call to the <code>ImageInputStream</code>
* specified when the <code>RawImageInputStream</code> is constructed.</p>
*/
public class RawImageInputStream implements ImageInputStream {
private static final String[] preDefinedColorSpaces =
new String[]{"GRAY", "sRGB", "LINEAR_RGB", "PYCC", "CIEXYZ"};
private static final int[] preDefinedTypes = new int[]{
ColorSpace.CS_GRAY, ColorSpace.CS_sRGB, ColorSpace.CS_LINEAR_RGB,
ColorSpace.CS_PYCC, ColorSpace.CS_CIEXYZ
};
/** Gets the attribute from the node. */
private static String getAttribute(Node node, String name) {
NamedNodeMap map = node.getAttributes();
node = map.getNamedItem(name);
return (node != null) ? node.getNodeValue() : null;
}
/** Gets the boolean type attribute. */
private static boolean getBoolean(Node node, String name) {
String s = getAttribute(node, name);
return (s == null) ? false : (new Boolean(s)).booleanValue();
}
/** Gets the integer type attribute. */
private static int getInt(Node node, String name) {
String s = getAttribute(node, name);
return (s == null) ? 0 : (new Integer(s)).intValue();
}
/** Gets the integer type attribute. */
private static byte[] getByteArray(Node node, String name) {
String s = getAttribute(node, name);
if (s == null)
return null;
StringTokenizer token = new StringTokenizer(s);
int count = token.countTokens();
if (count == 0)
return null;
byte[] buf = new byte[count];
int i = 0;
while(token.hasMoreElements()) {
buf[i++] = new Byte(token.nextToken()).byteValue();
}
return buf;
}
/** Gets the integer type attribute. */
private static int[] getIntArray(Node node, String name) {
String s = getAttribute(node, name);
if (s == null)
return null;
StringTokenizer token = new StringTokenizer(s);
int count = token.countTokens();
if (count == 0)
return null;
int[] buf = new int[count];
int i = 0;
while(token.hasMoreElements()) {
buf[i++] = new Integer(token.nextToken()).intValue();
}
return buf;
}
private static int getTransparency(String s) {
if ("BITMASK".equals(s))
return Transparency.BITMASK;
else if ("OPAQUE".equals(s))
return Transparency.OPAQUE;
else if ("TRANSLUCENT".equals(s))
return Transparency.TRANSLUCENT;
else return 0;
}
private static ColorSpace getColorSpace(Node node) throws IOException {
NodeList nodes = node.getChildNodes();
for (int i = 0; i < nodes.getLength(); i++) {
Node child = nodes.item(i);
if ("colorSpace".equals(child.getNodeName())) {
String s = child.getNodeValue();
for (int j = 0; j < preDefinedColorSpaces.length; j++) {
if (preDefinedColorSpaces[j].equals(s))
return ColorSpace.getInstance(preDefinedTypes[j]);
}
InputStream stm = new URL(s).openStream();
ColorSpace cp = new ICC_ColorSpace(ICC_Profile.getInstance(stm));
stm.close();
return cp;
}
}
return null;
}
/** The wrapperred <code>ImageInputStream</code>. */
private ImageInputStream source;
/** The image type for all the images in the stream. */
private ImageTypeSpecifier type;
/** The position of the first sample for each image. */
private long[] imageOffsets;
/** The image sizes. */
private Dimension[] imageDimensions;
/** Constructor.
* @param source The <code>ImageInputStream</code> containing all the raw
* images.
* @param type The <code>ImageTypeSpecifier</code> for all the images
* in the stream.
* @param imageOffsets The position of the first sample for each image
* in the stream.
* @param imageDimensions The image size for each image in the stream.
*
* @throws IllegalArgumentException If the sizes of
* <code>imageOffsets</code>
* and <code>imageDimensions</code> are different or if
* either array is null.
*/
public RawImageInputStream(ImageInputStream source,
ImageTypeSpecifier type,
long[] imageOffsets,
Dimension[] imageDimensions) {
if (imageOffsets == null || imageDimensions == null ||
imageOffsets.length != imageDimensions.length) {
throw new IllegalArgumentException
(I18N.getString("RawImageInputStream0"));
}
this.source = source;
this.type = type;
this.imageOffsets = imageOffsets;
this.imageDimensions = imageDimensions;
}
/**
* Constructor.
*
* <p>This constructor is the same as
* {@link #RawImageInputStream(ImageInputStream,ImageTypeSpecifier,
* long[],Dimension[])} except that a <code>SampleModel</code> is
* supplied instead of an <code>ImageTypeSpecifier</code>. This
* constructor creates a <code>ColorModel</code> for the supplied
* <code>SampleModel</code> and then creates an
* <code>ImageTypeSpecifier</code>.</p>
*
* <p>Suitable <code>ColorModel</code>s are guaranteed to exist
* for all instances of <code>ComponentSampleModel</code>.
* For 1- and 3- banded <code>SampleModel</code>s, the
* <code>ColorModel</code> will be opaque. For 2- and 4-banded
* <code>SampleModel</code>s, the output will use alpha transparency
* which is not premultiplied. 1- and 2-banded data will use a
* grayscale <code>ColorSpace</code>, and 3- and 4-banded data a sRGB
* <code>ColorSpace</code>. Data with 5 or more bands will use a
* <code>ColorSpace</code> which satisfies compatibility constraints
* but is merely a placeholder and <i>does not perform correct color
* conversion to and from the C.I.E. XYZ and sRGB color spaces</i>.</p>
*
* <p>An instance of <code>DirectColorModel</code> will be created for
* instances of <code>SinglePixelPackedSampleModel</code> with no more
* than 4 bands.</p>
*
* <p>An instance of <code>IndexColorModel</code> will be created for
* instances of <code>MultiPixelPackedSampleModel</code>. The colormap
* will be a grayscale ramp with <code>1 << numberOfBits</code>
* entries ranging from zero to at most 255.</p>
*
* @param source The <code>ImageInputStream</code> containing all the raw
* images.
* @param sampleModel The <code>SampleModel</code> for all the images
* in the stream.
* @param imageOffsets The position of the first sample for each image
* in the stream.
* @param imageDimensions The image size for each image in the stream.
*
* @throws IllegalArgumentException If <code>sampleModel</code> is null.
* @throws IllegalArgumentException If the sizes of
* <code>imageOffsets</code>
* and <code>imageDimensions</code> are different or if
* either array is null.
* @throws IllegalArgumentException If it is not possible to create a
* <code>ColorModel</code> from the supplied
* <code>SampleModel</code>.
*/
public RawImageInputStream(ImageInputStream source,
SampleModel sampleModel,
long[] imageOffsets,
Dimension[] imageDimensions) {
if (imageOffsets == null || imageDimensions == null ||
imageOffsets.length != imageDimensions.length) {
throw new IllegalArgumentException
(I18N.getString("RawImageInputStream0"));
}
this.source = source;
ColorModel colorModel = ImageUtil.createColorModel(sampleModel);
if(colorModel == null) {
throw new IllegalArgumentException
(I18N.getString("RawImageInputStream4"));
}
this.type = new ImageTypeSpecifier(colorModel, sampleModel);
this.imageOffsets = imageOffsets;
this.imageDimensions = imageDimensions;
}
/**
* Constructor.
*
* The <code>xmlSource</code> must adhere to the following DTD:
*
*<pre>
*<!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 -->
*]>
*</pre>
*
*
* @param source The <code>ImageInputStream</code> containing all the raw
* images.
* @param xmlSource The <code>org.xml.sax.InputSource</code> to provide
* the xml document in which the stream structure is defined.
*
* @throws RuntimeException If the parse configuration isn't correct.
*
* @throws IllegalArgumentException If the number of "width" elements isn't
* the same as the number of "height" elements.
*
* @throws SAXException If one is thrown in parsing.
*
* @throws IOException If one is thrown in parsing, or creating color space
* from a URL.
*/
public RawImageInputStream(ImageInputStream source,
org.xml.sax.InputSource xmlSource)
throws SAXException, IOException {
this.source = source;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setValidating(true);
dbf.setNamespaceAware(true);
dbf.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage",
"http://www.w3.org/2001/XMLSchema");
DocumentBuilder db = null;
try {
db = dbf.newDocumentBuilder();
} catch (ParserConfigurationException ex) {
throw new RuntimeException(I18N.getString("RawImageInputStream1"),
ex);
}
Document doc = db.parse(xmlSource);
//gets the byte order
NodeList nodes = doc.getElementsByTagName("byteOrder");
String byteOrder = nodes.item(0).getNodeValue();
if ("NETWORK".equals(byteOrder)) {
this.setByteOrder(ByteOrder.BIG_ENDIAN);
this.source.setByteOrder(ByteOrder.BIG_ENDIAN);
} else if ("REVERSE".equals(byteOrder)) {
this.setByteOrder(ByteOrder.LITTLE_ENDIAN);
this.setByteOrder(ByteOrder.LITTLE_ENDIAN);
}
//gets image offsets
nodes = doc.getElementsByTagName("offset");
int length = nodes.getLength();
this.imageOffsets = new long[length];
for (int i = 0; i < length; i++) {
imageOffsets[i] = new Long(nodes.item(i).getNodeValue()).longValue();
}
//gets image dimensions
nodes = doc.getElementsByTagName("width");
NodeList nodes1 = doc.getElementsByTagName("height");
length = nodes.getLength();
if (length != nodes1.getLength())
throw new IllegalArgumentException
(I18N.getString("RawImageInputStream2"));
this.imageDimensions = new Dimension[length];
for (int i = 0; i < length; i++) {
String w = nodes.item(i).getNodeValue();
String h = nodes1.item(i).getNodeValue();
imageDimensions[i] =
new Dimension((new Integer(w)).intValue(),
(new Integer(h)).intValue());
}
//get sampleModel
SampleModel sampleModel = null;
// for ComponentSampleModel
nodes = doc.getElementsByTagName("ComponentSampleModel");
if (nodes.getLength() > 0) {
Node node = nodes.item(0);
int[] bankIndices =getIntArray (node, "bankIndices");
if (bankIndices == null)
sampleModel =
new ComponentSampleModel(getInt(node, "dataType"),
getInt(node, "w"),
getInt(node, "h"),
getInt(node, "pixelStride"),
getInt(node, "scanlineStride"),
getIntArray(node, "bandOffsets"));
else
sampleModel =
new ComponentSampleModel(getInt(node, "dataType"),
getInt(node, "w"),
getInt(node, "h"),
getInt(node, "pixelStride"),
getInt(node, "scanlineStride"),
bankIndices,
getIntArray(node, "bandOffsets"));
}
// for MultiPixelPackedSampleModel
nodes = doc.getElementsByTagName("MultiPixelPackedSampleModel");
if (nodes.getLength() > 0) {
Node node = nodes.item(0);
sampleModel =
new MultiPixelPackedSampleModel(getInt(node, "dataType"),
getInt(node, "w"),
getInt(node, "h"),
getInt(node, "numberOfBits"),
getInt(node, "scanlineStride"),
getInt(node, "dataBitOffset"));
}
// for SinglePixelPackedSampleModel
nodes = doc.getElementsByTagName("SinglePixelPackedSampleModel");
if (nodes.getLength() > 0) {
Node node = nodes.item(0);
sampleModel =
new SinglePixelPackedSampleModel(getInt(node, "dataType"),
getInt(node, "w"),
getInt(node, "h"),
getInt(node, "scanlineStride"),
getIntArray(node, "bitMasks"));
}
//get colorModel
ColorModel colorModel = null;
// for ComponentColorModel
nodes = doc.getElementsByTagName("ComponentColorModel");
if (nodes.getLength() > 0) {
Node node = nodes.item(0);
colorModel =
new ComponentColorModel(getColorSpace(node),
getIntArray(node, "bits"),
getBoolean(node, "hasAlpha"),
getBoolean(node, "isAlphaPremultiplied"),
getTransparency(getAttribute(node, "transparency")),
getInt(node, "transferType"));
}
// for DirectColorModel
nodes = doc.getElementsByTagName("DirectColorModel");
if (nodes.getLength() > 0) {
Node node = nodes.item(0);
colorModel =
new DirectColorModel(getColorSpace(node),
getInt(node, "bits"),
getInt(node, "rmask"),
getInt(node, "gmask"),
getInt(node, "bmask"),
getInt(node, "amask"),
false,
Transparency.OPAQUE);
}
// for IndexColorModel
nodes = doc.getElementsByTagName("IndexColorModel");
if (nodes.getLength() > 0) {
Node node = nodes.item(0);
byte[] alpha = getByteArray(node, "a");
if (alpha == null)
colorModel =
new IndexColorModel(getInt(node, "bits"),
getInt(node, "size"),
getByteArray(node, "r"),
getByteArray(node, "g"),
getByteArray(node, "b"));
else
colorModel =
new IndexColorModel(getInt(node, "bits"),
getInt(node, "size"),
getByteArray(node, "r"),
getByteArray(node, "g"),
getByteArray(node, "b"),
alpha);
}
//create image type
this.type = new ImageTypeSpecifier(colorModel, sampleModel);
//assign imagedimension based on the sample model
if (this.imageDimensions.length == 0) {
this.imageDimensions = new Dimension[this.imageOffsets.length];
imageDimensions[0] = new Dimension(sampleModel.getWidth(),
sampleModel.getHeight());
for (int i = 1; i < imageDimensions.length; i++)
imageDimensions[i] = imageDimensions[0];
}
}
/**
* Retrieves the image type.
*
* @return the image type
*/
public ImageTypeSpecifier getImageType() {
return type;
}
/**
* Retrieves the image offset of the <code>imageIndex</code>th image.
*
* @param imageIndex the index of the image of interest.
* @throws IllegalArgumentException If the provided parameter is out of
* range.
* @return the offset in the stream to the specified image.
*/
public long getImageOffset(int imageIndex) {
if (imageIndex < 0 || imageIndex >= imageOffsets.length)
throw new IllegalArgumentException
(I18N.getString("RawImageInputStream3"));
return imageOffsets[imageIndex];
}
/** Retrieves the dimnsion of the <code>imageIndex</code>th image.
* @param imageIndex the index of the image of interest.
* @throws IllegalArgumentException If the provided parameter is out of
* rangle.
* @return the size of the specified image.
*/
public Dimension getImageDimension(int imageIndex) {
if (imageIndex < 0 || imageIndex >= imageOffsets.length)
throw new IllegalArgumentException
(I18N.getString("RawImageInputStream3"));
return imageDimensions[imageIndex];
}
/**
* Retrieves the number of images in the <code>ImageInputStream</code>.
* @return the number of image in the stream.
*/
public int getNumImages() {
return imageOffsets.length;
}
public void setByteOrder(ByteOrder byteOrder) {
source.setByteOrder(byteOrder);
}
public ByteOrder getByteOrder() {
return source.getByteOrder();
}
public int read() throws IOException {
return source.read();
}
public int read(byte[] b) throws IOException {
return source.read(b);
}
public int read(byte[] b, int off, int len) throws IOException {
return source.read(b, off, len);
}
public void readBytes(IIOByteBuffer buf, int len) throws IOException {
source.readBytes(buf, len);
}
public boolean readBoolean() throws IOException {
return source.readBoolean();
}
public byte readByte() throws IOException {
return source.readByte();
}
public int readUnsignedByte() throws IOException {
return source.readUnsignedByte();
}
public short readShort() throws IOException {
return source.readShort();
}
public int readUnsignedShort() throws IOException {
return source.readUnsignedShort();
}
public char readChar() throws IOException {
return source.readChar();
}
public int readInt() throws IOException {
return source.readInt();
}
public long readUnsignedInt() throws IOException {
return source.readUnsignedInt();
}
public long readLong() throws IOException {
return source.readLong();
}
public float readFloat() throws IOException {
return source.readFloat();
}
public double readDouble() throws IOException {
return source.readDouble();
}
public String readLine() throws IOException {
return source.readLine();
}
public String readUTF() throws IOException {
return source.readUTF();
}
public void readFully(byte[] b, int off, int len) throws IOException {
source.readFully(b, off, len);
}
public void readFully(byte[] b) throws IOException {
source.readFully(b);
}
public void readFully(short[] s, int off, int len) throws IOException {
source.readFully(s, off, len);
}
public void readFully(char[] c, int off, int len) throws IOException {
source.readFully(c, off, len);
}
public void readFully(int[] i, int off, int len) throws IOException {
source.readFully(i, off, len);
}
public void readFully(long[] l, int off, int len) throws IOException {
source.readFully(l, off, len);
}
public void readFully(float[] f, int off, int len) throws IOException {
source.readFully(f, off, len);
}
public void readFully(double[] d, int off, int len) throws IOException {
source.readFully(d, off, len);
}
public long getStreamPosition() throws IOException {
return source.getStreamPosition();
}
public int getBitOffset() throws IOException {
return source.getBitOffset();
}
public void setBitOffset(int bitOffset) throws IOException {
source.setBitOffset(bitOffset);
}
public int readBit() throws IOException {
return source.readBit();
}
public long readBits(int numBits) throws IOException {
return source.readBits(numBits);
}
public long length() throws IOException {
return source.length();
}
public int skipBytes(int n) throws IOException {
return source.skipBytes(n);
}
public long skipBytes(long n) throws IOException {
return source.skipBytes(n);
}
public void seek(long pos) throws IOException {
source.seek(pos);
}
public void mark() {
source.mark();
}
public void reset() throws IOException {
source.reset();
}
public void flushBefore(long pos) throws IOException {
source.flushBefore(pos);
}
public void flush() throws IOException {
source.flush();
}
public long getFlushedPosition() {
return source.getFlushedPosition();
}
public boolean isCached() {
return source.isCached();
}
public boolean isCachedMemory() {
return source.isCachedMemory();
}
public boolean isCachedFile() {
return source.isCachedFile();
}
public void close() throws IOException {
source.close();
}
}