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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package com.sun.imageio.plugins.bmp;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.metadata.IIOMetadataNode;
import javax.imageio.metadata.IIOMetadataFormat;
import javax.imageio.metadata.IIOMetadataFormatImpl;
import org.w3c.dom.Node;
import com.sun.imageio.plugins.common.I18N;
import com.sun.imageio.plugins.common.ImageUtil;
public class BMPMetadata extends IIOMetadata implements BMPConstants {
public static final String nativeMetadataFormatName =
"javax_imageio_bmp_1.0";
// Fields for Image Descriptor
public String bmpVersion;
public int width ;
public int height;
public short bitsPerPixel;
public int compression;
public int imageSize;
// Fields for PixelsPerMeter
public int xPixelsPerMeter;
public int yPixelsPerMeter;
public int colorsUsed;
public int colorsImportant;
// Fields for BI_BITFIELDS compression(Mask)
public int redMask;
public int greenMask;
public int blueMask;
public int alphaMask;
public int colorSpace;
// Fields for CIE XYZ for the LCS_CALIBRATED_RGB color space
public double redX;
public double redY;
public double redZ;
public double greenX;
public double greenY;
public double greenZ;
public double blueX;
public double blueY;
public double blueZ;
// Fields for Gamma values for the LCS_CALIBRATED_RGB color space
public int gammaRed;
public int gammaGreen;
public int gammaBlue;
public int intent;
// Fields for the Palette and Entries
public byte[] palette = null;
public int paletteSize;
public int red;
public int green;
public int blue;
// Fields from CommentExtension
// List of byte[]
public List comments = null; // new ArrayList();
public BMPMetadata() {
super(true,
nativeMetadataFormatName,
"com.sun.imageio.plugins.bmp.BMPMetadataFormat",
null, null);
}
public boolean isReadOnly() {
return true;
}
public Node getAsTree(String formatName) {
if (formatName.equals(nativeMetadataFormatName)) {
return getNativeTree();
} else if (formatName.equals
(IIOMetadataFormatImpl.standardMetadataFormatName)) {
return getStandardTree();
} else {
throw new IllegalArgumentException(I18N.getString("BMPMetadata0"));
}
}
private String toISO8859(byte[] data) {
try {
return new String(data, "ISO-8859-1");
} catch (UnsupportedEncodingException e) {
return "";
}
}
private Node getNativeTree() {
IIOMetadataNode root =
new IIOMetadataNode(nativeMetadataFormatName);
addChildNode(root, "BMPVersion", bmpVersion);
addChildNode(root, "Width", new Integer(width));
addChildNode(root, "Height", new Integer(height));
addChildNode(root, "BitsPerPixel", new Short(bitsPerPixel));
addChildNode(root, "Compression", new Integer(compression));
addChildNode(root, "ImageSize", new Integer(imageSize));
IIOMetadataNode node = addChildNode(root, "PixelsPerMeter", null);
addChildNode(node, "X", new Integer(xPixelsPerMeter));
addChildNode(node, "Y", new Integer(yPixelsPerMeter));
addChildNode(root, "ColorsUsed", new Integer(colorsUsed));
addChildNode(root, "ColorsImportant", new Integer(colorsImportant));
int version = 0;
for (int i = 0; i < bmpVersion.length(); i++)
if (Character.isDigit(bmpVersion.charAt(i)))
version = bmpVersion.charAt(i) -'0';
if (version >= 4) {
node = addChildNode(root, "Mask", null);
addChildNode(node, "Red", new Integer(redMask));
addChildNode(node, "Green", new Integer(greenMask));
addChildNode(node, "Blue", new Integer(blueMask));
addChildNode(node, "Alpha", new Integer(alphaMask));
addChildNode(root, "ColorSpaceType", new Integer(colorSpace));
node = addChildNode(root, "CIEXYZEndPoints", null);
addXYZPoints(node, "Red", redX, redY, redZ);
addXYZPoints(node, "Green", greenX, greenY, greenZ);
addXYZPoints(node, "Blue", blueX, blueY, blueZ);
node = addChildNode(root, "Intent", new Integer(intent));
}
// Palette
if ((palette != null) && (paletteSize > 0)) {
node = addChildNode(root, "Palette", null);
int numComps = palette.length / paletteSize;
for (int i = 0, j = 0; i < paletteSize; i++) {
IIOMetadataNode entry =
addChildNode(node, "PaletteEntry", null);
red = palette[j++] & 0xff;
green = palette[j++] & 0xff;
blue = palette[j++] & 0xff;
addChildNode(entry, "Red", new Byte((byte)red));
addChildNode(entry, "Green", new Byte((byte)green));
addChildNode(entry, "Blue", new Byte((byte)blue));
if (numComps == 4)
addChildNode(entry, "Alpha",
new Byte((byte)(palette[j++] & 0xff)));
}
}
return root;
}
// Standard tree node methods
protected IIOMetadataNode getStandardChromaNode() {
if ((palette != null) && (paletteSize > 0)) {
IIOMetadataNode node = new IIOMetadataNode("Chroma");
IIOMetadataNode subNode = new IIOMetadataNode("Palette");
int numComps = palette.length / paletteSize;
subNode.setAttribute("value", "" + numComps);
for (int i = 0, j = 0; i < paletteSize; i++) {
IIOMetadataNode subNode1 = new IIOMetadataNode("PaletteEntry");
subNode1.setAttribute("index", ""+i);
subNode1.setAttribute("red", "" + palette[j++]);
subNode1.setAttribute("green", "" + palette[j++]);
subNode1.setAttribute("blue", "" + palette[j++]);
if (numComps == 4 && palette[j] != 0)
subNode1.setAttribute("alpha", "" + palette[j++]);
subNode.appendChild(subNode1);
}
node.appendChild(subNode);
return node;
}
return null;
}
protected IIOMetadataNode getStandardCompressionNode() {
IIOMetadataNode node = new IIOMetadataNode("Compression");
// CompressionTypeName
IIOMetadataNode subNode = new IIOMetadataNode("CompressionTypeName");
subNode.setAttribute("value", BMPCompressionTypes.getName(compression));
node.appendChild(subNode);
return node;
}
protected IIOMetadataNode getStandardDataNode() {
IIOMetadataNode node = new IIOMetadataNode("Data");
String bits = "";
if (bitsPerPixel == 24)
bits = "8 8 8 ";
else if (bitsPerPixel == 16 || bitsPerPixel == 32) {
bits = "" + countBits(redMask) + " " + countBits(greenMask) +
countBits(blueMask) + "" + countBits(alphaMask);
}
IIOMetadataNode subNode = new IIOMetadataNode("BitsPerSample");
subNode.setAttribute("value", bits);
node.appendChild(subNode);
return node;
}
protected IIOMetadataNode getStandardDimensionNode() {
if (yPixelsPerMeter > 0.0F && xPixelsPerMeter > 0.0F) {
IIOMetadataNode node = new IIOMetadataNode("Dimension");
float ratio = yPixelsPerMeter / xPixelsPerMeter;
IIOMetadataNode subNode = new IIOMetadataNode("PixelAspectRatio");
subNode.setAttribute("value", "" + ratio);
node.appendChild(subNode);
subNode = new IIOMetadataNode("HorizontalPhysicalPixelSpacing");
subNode.setAttribute("value", "" + (1 / xPixelsPerMeter * 1000));
node.appendChild(subNode);
subNode = new IIOMetadataNode("VerticalPhysicalPixelSpacing");
subNode.setAttribute("value", "" + (1 / yPixelsPerMeter * 1000));
node.appendChild(subNode);
return node;
}
return null;
}
public void setFromTree(String formatName, Node root) {
throw new IllegalStateException(I18N.getString("BMPMetadata1"));
}
public void mergeTree(String formatName, Node root) {
throw new IllegalStateException(I18N.getString("BMPMetadata1"));
}
public void reset() {
throw new IllegalStateException(I18N.getString("BMPMetadata1"));
}
private String countBits(int num) {
int count = 0;
while(num > 0) {
if ((num & 1) == 1)
count++;
num >>>= 1;
}
return count == 0 ? "" : "" + count;
}
private void addXYZPoints(IIOMetadataNode root, String name, double x, double y, double z) {
IIOMetadataNode node = addChildNode(root, name, null);
addChildNode(node, "X", new Double(x));
addChildNode(node, "Y", new Double(y));
addChildNode(node, "Z", new Double(z));
}
private IIOMetadataNode addChildNode(IIOMetadataNode root,
String name,
Object object) {
IIOMetadataNode child = new IIOMetadataNode(name);
if (object != null) {
child.setUserObject(object);
child.setNodeValue(ImageUtil.convertObjectToString(object));
}
root.appendChild(child);
return child;
}
}