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⏎ com/sun/imageio/plugins/tiff/TIFFImageReader.java
/*
* Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package com.sun.imageio.plugins.tiff;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.color.ColorSpace;
import java.awt.color.ICC_ColorSpace;
import java.awt.color.ICC_Profile;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.ComponentColorModel;
import java.awt.image.Raster;
import java.awt.image.RenderedImage;
import java.awt.image.SampleModel;
import java.io.EOFException;
import java.io.IOException;
import java.nio.ByteOrder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import javax.imageio.IIOException;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.spi.ImageReaderSpi;
import javax.imageio.stream.ImageInputStream;
import org.w3c.dom.Node;
import com.sun.imageio.plugins.common.ImageUtil;
import javax.imageio.plugins.tiff.BaselineTIFFTagSet;
import javax.imageio.plugins.tiff.TIFFField;
import javax.imageio.plugins.tiff.TIFFImageReadParam;
import javax.imageio.plugins.tiff.TIFFTagSet;
public class TIFFImageReader extends ImageReader {
// A somewhat arbitrary upper bound on SamplesPerPixel. Hyperspectral
// images as of this writing appear to be under 300 bands so this should
// account for those cases should they arise.
private static final int SAMPLES_PER_PIXEL_MAX = 1024;
// In baseline TIFF the largest data types are 64-bit long and double.
private static final int BITS_PER_SAMPLE_MAX = 64;
// The current ImageInputStream source.
private ImageInputStream stream = null;
// True if the file header has been read.
private boolean gotHeader = false;
private ImageReadParam imageReadParam = getDefaultReadParam();
// Stream metadata, or null.
private TIFFStreamMetadata streamMetadata = null;
// The current image index.
private int currIndex = -1;
// Metadata for image at 'currIndex', or null.
private TIFFImageMetadata imageMetadata = null;
// A {@code List} of {@code Long}s indicating the stream
// positions of the start of the IFD for each image. Entries
// are added as needed.
private List<Long> imageStartPosition = new ArrayList<Long>();
// The number of images in the stream, if known, otherwise -1.
private int numImages = -1;
// The ImageTypeSpecifiers of the images in the stream.
// Contains a map of Integers to Lists.
private HashMap<Integer, List<ImageTypeSpecifier>> imageTypeMap
= new HashMap<Integer, List<ImageTypeSpecifier>>();
private BufferedImage theImage = null;
private int width = -1;
private int height = -1;
private int numBands = -1;
private int tileOrStripWidth = -1, tileOrStripHeight = -1;
private int planarConfiguration = BaselineTIFFTagSet.PLANAR_CONFIGURATION_CHUNKY;
private int compression;
private int photometricInterpretation;
private int samplesPerPixel;
private int[] sampleFormat;
private int[] bitsPerSample;
private int[] extraSamples;
private char[] colorMap;
private int sourceXOffset;
private int sourceYOffset;
private int srcXSubsampling;
private int srcYSubsampling;
private int dstWidth;
private int dstHeight;
private int dstMinX;
private int dstMinY;
private int dstXOffset;
private int dstYOffset;
private int tilesAcross;
private int tilesDown;
private int pixelsRead;
private int pixelsToRead;
public TIFFImageReader(ImageReaderSpi originatingProvider) {
super(originatingProvider);
}
public void setInput(Object input,
boolean seekForwardOnly,
boolean ignoreMetadata) {
super.setInput(input, seekForwardOnly, ignoreMetadata);
// Clear all local values based on the previous stream contents.
resetLocal();
if (input != null) {
if (!(input instanceof ImageInputStream)) {
throw new IllegalArgumentException("input not an ImageInputStream!");
}
this.stream = (ImageInputStream) input;
} else {
this.stream = null;
}
}
// Do not seek to the beginning of the stream so as to allow users to
// point us at an IFD within some other file format
private void readHeader() throws IIOException {
if (gotHeader) {
return;
}
if (stream == null) {
throw new IllegalStateException("Input not set!");
}
// Create an object to store the stream metadata
this.streamMetadata = new TIFFStreamMetadata();
try {
int byteOrder = stream.readUnsignedShort();
if (byteOrder == 0x4d4d) {
streamMetadata.byteOrder = ByteOrder.BIG_ENDIAN;
stream.setByteOrder(ByteOrder.BIG_ENDIAN);
} else if (byteOrder == 0x4949) {
streamMetadata.byteOrder = ByteOrder.LITTLE_ENDIAN;
stream.setByteOrder(ByteOrder.LITTLE_ENDIAN);
} else {
processWarningOccurred(
"Bad byte order in header, assuming little-endian");
streamMetadata.byteOrder = ByteOrder.LITTLE_ENDIAN;
stream.setByteOrder(ByteOrder.LITTLE_ENDIAN);
}
int magic = stream.readUnsignedShort();
if (magic != 42) {
processWarningOccurred(
"Bad magic number in header, continuing");
}
// Seek to start of first IFD
long offset = stream.readUnsignedInt();
stream.seek(offset);
imageStartPosition.add(Long.valueOf(offset));
} catch (IOException e) {
throw new IIOException("I/O error reading header!", e);
}
gotHeader = true;
}
private int locateImage(int imageIndex) throws IIOException {
readHeader();
// Find closest known index
int index = Math.min(imageIndex, imageStartPosition.size() - 1);
try {
// Seek to that position
Long l = imageStartPosition.get(index);
stream.seek(l.longValue());
// Skip IFDs until at desired index or last image found
while (index < imageIndex) {
int count = stream.readUnsignedShort();
// If zero-entry IFD, decrement the index and exit the loop
if (count == 0) {
imageIndex = index > 0 ? index - 1 : 0;
break;
}
stream.skipBytes(12 * count);
long offset = stream.readUnsignedInt();
if (offset == 0) {
return index;
}
stream.seek(offset);
imageStartPosition.add(Long.valueOf(offset));
++index;
}
} catch (EOFException eofe) {
forwardWarningMessage("Ignored " + eofe);
// Ran off the end of stream: decrement index
imageIndex = index > 0 ? index - 1 : 0;
} catch (IOException ioe) {
throw new IIOException("Couldn't seek!", ioe);
}
if (currIndex != imageIndex) {
imageMetadata = null;
}
currIndex = imageIndex;
return imageIndex;
}
public int getNumImages(boolean allowSearch) throws IOException {
if (stream == null) {
throw new IllegalStateException("Input not set!");
}
if (seekForwardOnly && allowSearch) {
throw new IllegalStateException("seekForwardOnly and allowSearch can't both be true!");
}
if (numImages > 0) {
return numImages;
}
if (allowSearch) {
this.numImages = locateImage(Integer.MAX_VALUE) + 1;
}
return numImages;
}
public IIOMetadata getStreamMetadata() throws IIOException {
readHeader();
return streamMetadata;
}
// Throw an IndexOutOfBoundsException if index < minIndex,
// and bump minIndex if required.
private void checkIndex(int imageIndex) {
if (imageIndex < minIndex) {
throw new IndexOutOfBoundsException("imageIndex < minIndex!");
}
if (seekForwardOnly) {
minIndex = imageIndex;
}
}
// Verify that imageIndex is in bounds, find the image IFD, read the
// image metadata, initialize instance variables from the metadata.
private void seekToImage(int imageIndex) throws IIOException {
checkIndex(imageIndex);
int index = locateImage(imageIndex);
if (index != imageIndex) {
throw new IndexOutOfBoundsException("imageIndex out of bounds!");
}
readMetadata();
initializeFromMetadata();
}
// Stream must be positioned at start of IFD for 'currIndex'
private void readMetadata() throws IIOException {
if (stream == null) {
throw new IllegalStateException("Input not set!");
}
if (imageMetadata != null) {
return;
}
try {
// Create an object to store the image metadata
List<TIFFTagSet> tagSets;
boolean readUnknownTags = false;
if (imageReadParam instanceof TIFFImageReadParam) {
TIFFImageReadParam tp = (TIFFImageReadParam)imageReadParam;
tagSets = tp.getAllowedTagSets();
readUnknownTags = tp.getReadUnknownTags();
} else {
tagSets = new ArrayList<TIFFTagSet>(1);
tagSets.add(BaselineTIFFTagSet.getInstance());
}
this.imageMetadata = new TIFFImageMetadata(tagSets);
imageMetadata.initializeFromStream(stream, ignoreMetadata,
readUnknownTags);
} catch (IIOException iioe) {
throw iioe;
} catch (IOException ioe) {
throw new IIOException("I/O error reading image metadata!", ioe);
}
}
private int getWidth() {
return this.width;
}
private int getHeight() {
return this.height;
}
// Returns tile width if image is tiled, else image width
private int getTileOrStripWidth() {
TIFFField f
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_WIDTH);
return (f == null) ? getWidth() : f.getAsInt(0);
}
// Returns tile height if image is tiled, else strip height
private int getTileOrStripHeight() {
TIFFField f
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_LENGTH);
if (f != null) {
return f.getAsInt(0);
}
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_ROWS_PER_STRIP);
// Default for ROWS_PER_STRIP is 2^32 - 1, i.e., infinity
int h = (f == null) ? -1 : f.getAsInt(0);
return (h == -1) ? getHeight() : h;
}
private int getPlanarConfiguration() {
TIFFField f
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_PLANAR_CONFIGURATION);
if (f != null) {
int planarConfigurationValue = f.getAsInt(0);
if (planarConfigurationValue
== BaselineTIFFTagSet.PLANAR_CONFIGURATION_PLANAR) {
// Some writers (e.g. Kofax standard Multi-Page TIFF
// Storage Filter v2.01.000; cf. bug 4929147) do not
// correctly set the value of this field. Attempt to
// ascertain whether the value is correctly Planar.
if (getCompression()
== BaselineTIFFTagSet.COMPRESSION_OLD_JPEG
&& imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_INTERCHANGE_FORMAT)
!= null) {
// JPEG interchange format cannot have
// PlanarConfiguration value Chunky so reset.
processWarningOccurred("PlanarConfiguration \"Planar\" value inconsistent with JPEGInterchangeFormat; resetting to \"Chunky\".");
planarConfigurationValue
= BaselineTIFFTagSet.PLANAR_CONFIGURATION_CHUNKY;
} else {
TIFFField offsetField
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_OFFSETS);
if (offsetField == null) {
// Tiles
offsetField
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_STRIP_OFFSETS);
int tw = getTileOrStripWidth();
int th = getTileOrStripHeight();
int tAcross = (getWidth() + tw - 1) / tw;
int tDown = (getHeight() + th - 1) / th;
int tilesPerImage = tAcross * tDown;
long[] offsetArray = offsetField.getAsLongs();
if (offsetArray != null
&& offsetArray.length == tilesPerImage) {
// Length of offsets array is
// TilesPerImage for Chunky and
// SamplesPerPixel*TilesPerImage for Planar.
processWarningOccurred("PlanarConfiguration \"Planar\" value inconsistent with TileOffsets field value count; resetting to \"Chunky\".");
planarConfigurationValue
= BaselineTIFFTagSet.PLANAR_CONFIGURATION_CHUNKY;
}
} else {
// Strips
int rowsPerStrip = getTileOrStripHeight();
int stripsPerImage
= (getHeight() + rowsPerStrip - 1) / rowsPerStrip;
long[] offsetArray = offsetField.getAsLongs();
if (offsetArray != null
&& offsetArray.length == stripsPerImage) {
// Length of offsets array is
// StripsPerImage for Chunky and
// SamplesPerPixel*StripsPerImage for Planar.
processWarningOccurred("PlanarConfiguration \"Planar\" value inconsistent with StripOffsets field value count; resetting to \"Chunky\".");
planarConfigurationValue
= BaselineTIFFTagSet.PLANAR_CONFIGURATION_CHUNKY;
}
}
}
}
return planarConfigurationValue;
}
return BaselineTIFFTagSet.PLANAR_CONFIGURATION_CHUNKY;
}
private long getTileOrStripOffset(int tileIndex) throws IIOException {
TIFFField f
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_OFFSETS);
if (f == null) {
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_STRIP_OFFSETS);
}
if (f == null) {
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_INTERCHANGE_FORMAT);
}
if (f == null) {
throw new IIOException("Missing required strip or tile offsets field.");
}
return f.getAsLong(tileIndex);
}
private long getTileOrStripByteCount(int tileIndex) throws IOException {
TIFFField f
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_BYTE_COUNTS);
if (f == null) {
f
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_STRIP_BYTE_COUNTS);
}
if (f == null) {
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH);
}
long tileOrStripByteCount;
if (f != null) {
tileOrStripByteCount = f.getAsLong(tileIndex);
} else {
processWarningOccurred("TIFF directory contains neither StripByteCounts nor TileByteCounts field: attempting to calculate from strip or tile width and height.");
// Initialize to number of bytes per strip or tile assuming
// no compression.
int bitsPerPixel = bitsPerSample[0];
for (int i = 1; i < samplesPerPixel; i++) {
bitsPerPixel += bitsPerSample[i];
}
int bytesPerRow = (getTileOrStripWidth() * bitsPerPixel + 7) / 8;
tileOrStripByteCount = bytesPerRow * getTileOrStripHeight();
// Clamp to end of stream if possible.
long streamLength = stream.length();
if (streamLength != -1) {
tileOrStripByteCount
= Math.min(tileOrStripByteCount,
streamLength - getTileOrStripOffset(tileIndex));
} else {
processWarningOccurred("Stream length is unknown: cannot clamp estimated strip or tile byte count to EOF.");
}
}
return tileOrStripByteCount;
}
private int getCompression() {
TIFFField f
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_COMPRESSION);
if (f == null) {
return BaselineTIFFTagSet.COMPRESSION_NONE;
} else {
return f.getAsInt(0);
}
}
public int getWidth(int imageIndex) throws IOException {
seekToImage(imageIndex);
return getWidth();
}
public int getHeight(int imageIndex) throws IOException {
seekToImage(imageIndex);
return getHeight();
}
/**
* Initializes these instance variables from the image metadata:
* <pre>
* compression
* width
* height
* samplesPerPixel
* numBands
* colorMap
* photometricInterpretation
* sampleFormat
* bitsPerSample
* extraSamples
* tileOrStripWidth
* tileOrStripHeight
* </pre>
*/
private void initializeFromMetadata() throws IIOException {
TIFFField f;
// Compression
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_COMPRESSION);
if (f == null) {
processWarningOccurred("Compression field is missing; assuming no compression");
compression = BaselineTIFFTagSet.COMPRESSION_NONE;
} else {
compression = f.getAsInt(0);
}
// Whether key dimensional information is absent.
boolean isMissingDimension = false;
// ImageWidth -> width
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_IMAGE_WIDTH);
if (f != null) {
this.width = f.getAsInt(0);
} else {
processWarningOccurred("ImageWidth field is missing.");
isMissingDimension = true;
}
// ImageLength -> height
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_IMAGE_LENGTH);
if (f != null) {
this.height = f.getAsInt(0);
} else {
processWarningOccurred("ImageLength field is missing.");
isMissingDimension = true;
}
// SamplesPerPixel
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_SAMPLES_PER_PIXEL);
if (f != null) {
samplesPerPixel = f.getAsInt(0);
} else {
samplesPerPixel = 1;
isMissingDimension = true;
}
// If any dimension is missing and there is a JPEG stream available
// get the information from it.
int defaultBitDepth = 1;
if (isMissingDimension
&& (f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_INTERCHANGE_FORMAT)) != null) {
Iterator<ImageReader> iter = ImageIO.getImageReadersByFormatName("JPEG");
if (iter != null && iter.hasNext()) {
ImageReader jreader = iter.next();
try {
stream.mark();
stream.seek(f.getAsLong(0));
jreader.setInput(stream);
if (imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_IMAGE_WIDTH) == null) {
this.width = jreader.getWidth(0);
}
if (imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_IMAGE_LENGTH) == null) {
this.height = jreader.getHeight(0);
}
ImageTypeSpecifier imageType = jreader.getRawImageType(0);
if (imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_SAMPLES_PER_PIXEL) == null) {
this.samplesPerPixel =
imageType != null ?
imageType.getSampleModel().getNumBands() : 3;
}
stream.reset();
defaultBitDepth =
imageType != null ?
imageType.getColorModel().getComponentSize(0) : 8;
} catch (IOException e) {
// Ignore it and proceed: an error will occur later.
}
jreader.dispose();
}
}
if (samplesPerPixel < 1) {
throw new IIOException("Samples per pixel < 1!");
} else if (samplesPerPixel > SAMPLES_PER_PIXEL_MAX) {
throw new IIOException
("Samples per pixel (" + samplesPerPixel
+ ") greater than allowed maximum ("
+ SAMPLES_PER_PIXEL_MAX + ")");
}
// SamplesPerPixel -> numBands
numBands = samplesPerPixel;
// ColorMap
this.colorMap = null;
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_COLOR_MAP);
if (f != null) {
// Grab color map
colorMap = f.getAsChars();
}
// PhotometricInterpretation
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_PHOTOMETRIC_INTERPRETATION);
if (f == null) {
if (compression == BaselineTIFFTagSet.COMPRESSION_CCITT_RLE
|| compression == BaselineTIFFTagSet.COMPRESSION_CCITT_T_4
|| compression == BaselineTIFFTagSet.COMPRESSION_CCITT_T_6) {
processWarningOccurred("PhotometricInterpretation field is missing; "
+ "assuming WhiteIsZero");
photometricInterpretation
= BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_WHITE_IS_ZERO;
} else if (this.colorMap != null) {
photometricInterpretation
= BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_PALETTE_COLOR;
} else if (samplesPerPixel == 3 || samplesPerPixel == 4) {
photometricInterpretation
= BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_RGB;
} else {
processWarningOccurred("PhotometricInterpretation field is missing; "
+ "assuming BlackIsZero");
photometricInterpretation
= BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_BLACK_IS_ZERO;
}
} else {
photometricInterpretation = f.getAsInt(0);
}
// SampleFormat
boolean replicateFirst = false;
int first = -1;
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_SAMPLE_FORMAT);
sampleFormat = new int[samplesPerPixel];
replicateFirst = false;
if (f == null) {
replicateFirst = true;
first = BaselineTIFFTagSet.SAMPLE_FORMAT_UNDEFINED;
} else if (f.getCount() != samplesPerPixel) {
replicateFirst = true;
first = f.getAsInt(0);
}
for (int i = 0; i < samplesPerPixel; i++) {
sampleFormat[i] = replicateFirst ? first : f.getAsInt(i);
if (sampleFormat[i]
!= BaselineTIFFTagSet.SAMPLE_FORMAT_UNSIGNED_INTEGER
&& sampleFormat[i]
!= BaselineTIFFTagSet.SAMPLE_FORMAT_SIGNED_INTEGER
&& sampleFormat[i]
!= BaselineTIFFTagSet.SAMPLE_FORMAT_FLOATING_POINT
&& sampleFormat[i]
!= BaselineTIFFTagSet.SAMPLE_FORMAT_UNDEFINED) {
processWarningOccurred(
"Illegal value for SAMPLE_FORMAT, assuming SAMPLE_FORMAT_UNDEFINED");
sampleFormat[i] = BaselineTIFFTagSet.SAMPLE_FORMAT_UNDEFINED;
}
}
// BitsPerSample
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_BITS_PER_SAMPLE);
this.bitsPerSample = new int[samplesPerPixel];
replicateFirst = false;
if (f == null) {
replicateFirst = true;
first = defaultBitDepth;
} else if (f.getCount() != samplesPerPixel) {
replicateFirst = true;
first = f.getAsInt(0);
}
for (int i = 0; i < samplesPerPixel; i++) {
// Replicate initial value if not enough values provided
bitsPerSample[i] = replicateFirst ? first : f.getAsInt(i);
if (bitsPerSample[i] > BITS_PER_SAMPLE_MAX) {
throw new IIOException
("Bits per sample (" + bitsPerSample[i]
+ ") greater than allowed maximum ("
+ BITS_PER_SAMPLE_MAX + ")");
}
}
// ExtraSamples
this.extraSamples = null;
f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_EXTRA_SAMPLES);
if (f != null) {
extraSamples = f.getAsInts();
}
}
public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex) throws IIOException {
List<ImageTypeSpecifier> l; // List of ImageTypeSpecifiers
Integer imageIndexInteger = Integer.valueOf(imageIndex);
if (imageTypeMap.containsKey(imageIndexInteger)) {
// Return the cached ITS List.
l = imageTypeMap.get(imageIndexInteger);
} else {
// Create a new ITS List.
l = new ArrayList<ImageTypeSpecifier>(1);
// Create the ITS and cache if for later use so that this method
// always returns an Iterator containing the same ITS objects.
seekToImage(imageIndex);
ImageTypeSpecifier itsRaw
= TIFFDecompressor.getRawImageTypeSpecifier(photometricInterpretation,
compression,
samplesPerPixel,
bitsPerSample,
sampleFormat,
extraSamples,
colorMap);
// Check for an ICCProfile field.
TIFFField iccProfileField
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_ICC_PROFILE);
// If an ICCProfile field is present change the ImageTypeSpecifier
// to use it if the data layout is component type.
if (iccProfileField != null
&& itsRaw.getColorModel() instanceof ComponentColorModel) {
// Get the raw sample and color information.
ColorModel cmRaw = itsRaw.getColorModel();
ColorSpace csRaw = cmRaw.getColorSpace();
SampleModel smRaw = itsRaw.getSampleModel();
ColorSpace iccColorSpace = null;
try {
// Create a ColorSpace from the profile.
byte[] iccProfileValue = iccProfileField.getAsBytes();
ICC_Profile iccProfile
= ICC_Profile.getInstance(iccProfileValue);
iccColorSpace = new ICC_ColorSpace(iccProfile);
// Workaround for JDK-8145241: test a conversion and fall
// back to a standard ColorSpace if it fails. This
// workaround could be removed if JDK-8145241 is fixed.
float[] rgb =
iccColorSpace.toRGB(new float[] {1.0F, 1.0F, 1.0F});
} catch (Exception iccProfileException) {
processWarningOccurred("Superseding bad ICC profile: "
+ iccProfileException.getMessage());
if (iccColorSpace != null) {
switch (iccColorSpace.getType()) {
case ColorSpace.TYPE_GRAY:
iccColorSpace =
ColorSpace.getInstance(ColorSpace.CS_GRAY);
break;
case ColorSpace.TYPE_RGB:
iccColorSpace =
ColorSpace.getInstance(ColorSpace.CS_sRGB);
break;
default:
iccColorSpace = csRaw;
break;
}
} else {
iccColorSpace = csRaw;
}
}
// Get the number of samples per pixel and the number
// of color components.
int numBands = smRaw.getNumBands();
int numComponents = iccColorSpace.getNumComponents();
// Replace the ColorModel with the ICC ColorModel if the
// numbers of samples and color components are amenable.
if (numBands == numComponents
|| numBands == numComponents + 1) {
// Set alpha flags.
boolean hasAlpha = numComponents != numBands;
boolean isAlphaPre
= hasAlpha && cmRaw.isAlphaPremultiplied();
// Create a ColorModel of the same class and with
// the same transfer type.
ColorModel iccColorModel
= new ComponentColorModel(iccColorSpace,
cmRaw.getComponentSize(),
hasAlpha,
isAlphaPre,
cmRaw.getTransparency(),
cmRaw.getTransferType());
// Prepend the ICC profile-based ITS to the List. The
// ColorModel and SampleModel are guaranteed to be
// compatible as the old and new ColorModels are both
// ComponentColorModels with the same transfer type
// and the same number of components.
l.add(new ImageTypeSpecifier(iccColorModel, smRaw));
// Append the raw ITS to the List if and only if its
// ColorSpace has the same type and number of components
// as the ICC ColorSpace.
if (csRaw.getType() == iccColorSpace.getType()
&& csRaw.getNumComponents()
== iccColorSpace.getNumComponents()) {
l.add(itsRaw);
}
} else { // ICCProfile not compatible with SampleModel.
// Append the raw ITS to the List.
l.add(itsRaw);
}
} else { // No ICCProfile field or raw ColorModel not component.
// Append the raw ITS to the List.
l.add(itsRaw);
}
// Cache the ITS List.
imageTypeMap.put(imageIndexInteger, l);
}
return l.iterator();
}
public IIOMetadata getImageMetadata(int imageIndex) throws IIOException {
seekToImage(imageIndex);
TIFFImageMetadata im
= new TIFFImageMetadata(imageMetadata.getRootIFD().getTagSetList());
Node root
= imageMetadata.getAsTree(TIFFImageMetadata.NATIVE_METADATA_FORMAT_NAME);
im.setFromTree(TIFFImageMetadata.NATIVE_METADATA_FORMAT_NAME, root);
return im;
}
public IIOMetadata getStreamMetadata(int imageIndex) throws IIOException {
readHeader();
TIFFStreamMetadata sm = new TIFFStreamMetadata();
Node root = sm.getAsTree(TIFFStreamMetadata.NATIVE_METADATA_FORMAT_NAME);
sm.setFromTree(TIFFStreamMetadata.NATIVE_METADATA_FORMAT_NAME, root);
return sm;
}
public boolean isRandomAccessEasy(int imageIndex) throws IOException {
if (currIndex != -1) {
seekToImage(currIndex);
return getCompression() == BaselineTIFFTagSet.COMPRESSION_NONE;
} else {
return false;
}
}
// Thumbnails
public boolean readSupportsThumbnails() {
return false;
}
public boolean hasThumbnails(int imageIndex) {
return false;
}
public int getNumThumbnails(int imageIndex) throws IOException {
return 0;
}
public ImageReadParam getDefaultReadParam() {
return new TIFFImageReadParam();
}
public boolean isImageTiled(int imageIndex) throws IOException {
seekToImage(imageIndex);
TIFFField f
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_WIDTH);
return f != null;
}
public int getTileWidth(int imageIndex) throws IOException {
seekToImage(imageIndex);
return getTileOrStripWidth();
}
public int getTileHeight(int imageIndex) throws IOException {
seekToImage(imageIndex);
return getTileOrStripHeight();
}
public BufferedImage readTile(int imageIndex, int tileX, int tileY)
throws IOException {
int w = getWidth(imageIndex);
int h = getHeight(imageIndex);
int tw = getTileWidth(imageIndex);
int th = getTileHeight(imageIndex);
int x = tw * tileX;
int y = th * tileY;
if (tileX < 0 || tileY < 0 || x >= w || y >= h) {
throw new IllegalArgumentException("Tile indices are out of bounds!");
}
if (x + tw > w) {
tw = w - x;
}
if (y + th > h) {
th = h - y;
}
ImageReadParam param = getDefaultReadParam();
Rectangle tileRect = new Rectangle(x, y, tw, th);
param.setSourceRegion(tileRect);
return read(imageIndex, param);
}
public boolean canReadRaster() {
return false;
}
public Raster readRaster(int imageIndex, ImageReadParam param)
throws IOException {
throw new UnsupportedOperationException();
}
private int[] sourceBands;
private int[] destinationBands;
private TIFFDecompressor decompressor;
// floor(num/den)
private static int ifloor(int num, int den) {
if (num < 0) {
num -= den - 1;
}
return num / den;
}
// ceil(num/den)
private static int iceil(int num, int den) {
if (num > 0) {
num += den - 1;
}
return num / den;
}
private void prepareRead(int imageIndex, ImageReadParam param)
throws IOException {
if (stream == null) {
throw new IllegalStateException("Input not set!");
}
// A null ImageReadParam means we use the default
if (param == null) {
param = getDefaultReadParam();
}
this.imageReadParam = param;
seekToImage(imageIndex);
this.tileOrStripWidth = getTileOrStripWidth();
this.tileOrStripHeight = getTileOrStripHeight();
this.planarConfiguration = getPlanarConfiguration();
this.sourceBands = param.getSourceBands();
if (sourceBands == null) {
sourceBands = new int[numBands];
for (int i = 0; i < numBands; i++) {
sourceBands[i] = i;
}
}
// Initialize the destination image
Iterator<ImageTypeSpecifier> imageTypes = getImageTypes(imageIndex);
ImageTypeSpecifier theImageType
= ImageUtil.getDestinationType(param, imageTypes);
int destNumBands = theImageType.getSampleModel().getNumBands();
this.destinationBands = param.getDestinationBands();
if (destinationBands == null) {
destinationBands = new int[destNumBands];
for (int i = 0; i < destNumBands; i++) {
destinationBands[i] = i;
}
}
if (sourceBands.length != destinationBands.length) {
throw new IllegalArgumentException(
"sourceBands.length != destinationBands.length");
}
for (int i = 0; i < sourceBands.length; i++) {
int sb = sourceBands[i];
if (sb < 0 || sb >= numBands) {
throw new IllegalArgumentException(
"Source band out of range!");
}
int db = destinationBands[i];
if (db < 0 || db >= destNumBands) {
throw new IllegalArgumentException(
"Destination band out of range!");
}
}
}
public RenderedImage readAsRenderedImage(int imageIndex,
ImageReadParam param)
throws IOException {
prepareRead(imageIndex, param);
return new TIFFRenderedImage(this, imageIndex, imageReadParam,
width, height);
}
private void decodeTile(int ti, int tj, int band) throws IOException {
// Compute the region covered by the strip or tile
Rectangle tileRect = new Rectangle(ti * tileOrStripWidth,
tj * tileOrStripHeight,
tileOrStripWidth,
tileOrStripHeight);
// Clip against the image bounds if the image is not tiled. If it
// is tiled, the tile may legally extend beyond the image bounds.
if (!isImageTiled(currIndex)) {
tileRect
= tileRect.intersection(new Rectangle(0, 0, width, height));
}
// Return if the intersection is empty.
if (tileRect.width <= 0 || tileRect.height <= 0) {
return;
}
int srcMinX = tileRect.x;
int srcMinY = tileRect.y;
int srcWidth = tileRect.width;
int srcHeight = tileRect.height;
// Determine dest region that can be derived from the
// source region
dstMinX = iceil(srcMinX - sourceXOffset, srcXSubsampling);
int dstMaxX = ifloor(srcMinX + srcWidth - 1 - sourceXOffset,
srcXSubsampling);
dstMinY = iceil(srcMinY - sourceYOffset, srcYSubsampling);
int dstMaxY = ifloor(srcMinY + srcHeight - 1 - sourceYOffset,
srcYSubsampling);
dstWidth = dstMaxX - dstMinX + 1;
dstHeight = dstMaxY - dstMinY + 1;
dstMinX += dstXOffset;
dstMinY += dstYOffset;
// Clip against image bounds
Rectangle dstRect = new Rectangle(dstMinX, dstMinY,
dstWidth, dstHeight);
dstRect
= dstRect.intersection(theImage.getRaster().getBounds());
dstMinX = dstRect.x;
dstMinY = dstRect.y;
dstWidth = dstRect.width;
dstHeight = dstRect.height;
if (dstWidth <= 0 || dstHeight <= 0) {
return;
}
// Backwards map dest region to source to determine
// active source region
int activeSrcMinX = (dstMinX - dstXOffset) * srcXSubsampling
+ sourceXOffset;
int sxmax
= (dstMinX + dstWidth - 1 - dstXOffset) * srcXSubsampling
+ sourceXOffset;
int activeSrcWidth = sxmax - activeSrcMinX + 1;
int activeSrcMinY = (dstMinY - dstYOffset) * srcYSubsampling
+ sourceYOffset;
int symax
= (dstMinY + dstHeight - 1 - dstYOffset) * srcYSubsampling
+ sourceYOffset;
int activeSrcHeight = symax - activeSrcMinY + 1;
decompressor.setSrcMinX(srcMinX);
decompressor.setSrcMinY(srcMinY);
decompressor.setSrcWidth(srcWidth);
decompressor.setSrcHeight(srcHeight);
decompressor.setDstMinX(dstMinX);
decompressor.setDstMinY(dstMinY);
decompressor.setDstWidth(dstWidth);
decompressor.setDstHeight(dstHeight);
decompressor.setActiveSrcMinX(activeSrcMinX);
decompressor.setActiveSrcMinY(activeSrcMinY);
decompressor.setActiveSrcWidth(activeSrcWidth);
decompressor.setActiveSrcHeight(activeSrcHeight);
int tileIndex = tj * tilesAcross + ti;
if (planarConfiguration
== BaselineTIFFTagSet.PLANAR_CONFIGURATION_PLANAR) {
tileIndex += band * tilesAcross * tilesDown;
}
long offset = getTileOrStripOffset(tileIndex);
long byteCount = getTileOrStripByteCount(tileIndex);
decompressor.setPlanarBand(band);
decompressor.setStream(stream);
decompressor.setOffset(offset);
decompressor.setByteCount((int) byteCount);
decompressor.beginDecoding();
stream.mark();
decompressor.decode();
stream.reset();
}
private void reportProgress() {
// Report image progress/update to listeners after each tile
pixelsRead += dstWidth * dstHeight;
processImageProgress(100.0f * pixelsRead / pixelsToRead);
processImageUpdate(theImage,
dstMinX, dstMinY, dstWidth, dstHeight,
1, 1,
destinationBands);
}
public BufferedImage read(int imageIndex, ImageReadParam param)
throws IOException {
prepareRead(imageIndex, param);
this.theImage = getDestination(param,
getImageTypes(imageIndex),
width, height);
srcXSubsampling = imageReadParam.getSourceXSubsampling();
srcYSubsampling = imageReadParam.getSourceYSubsampling();
Point p = imageReadParam.getDestinationOffset();
dstXOffset = p.x;
dstYOffset = p.y;
// This could probably be made more efficient...
Rectangle srcRegion = new Rectangle(0, 0, 0, 0);
Rectangle destRegion = new Rectangle(0, 0, 0, 0);
computeRegions(imageReadParam, width, height, theImage,
srcRegion, destRegion);
// Initial source pixel, taking source region and source
// subsamplimg offsets into account
sourceXOffset = srcRegion.x;
sourceYOffset = srcRegion.y;
pixelsToRead = destRegion.width * destRegion.height;
pixelsRead = 0;
clearAbortRequest();
processImageStarted(imageIndex);
if (abortRequested()) {
processReadAborted();
return theImage;
}
tilesAcross = (width + tileOrStripWidth - 1) / tileOrStripWidth;
tilesDown = (height + tileOrStripHeight - 1) / tileOrStripHeight;
int compression = getCompression();
// Set the decompressor
if (compression == BaselineTIFFTagSet.COMPRESSION_NONE) {
// Get the fillOrder field.
TIFFField fillOrderField
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_FILL_ORDER);
// Set the decompressor based on the fill order.
if (fillOrderField != null && fillOrderField.getAsInt(0) == 2) {
this.decompressor = new TIFFLSBDecompressor();
} else {
this.decompressor = new TIFFNullDecompressor();
}
} else if (compression
== BaselineTIFFTagSet.COMPRESSION_CCITT_T_6) {
this.decompressor = new TIFFFaxDecompressor();
} else if (compression
== BaselineTIFFTagSet.COMPRESSION_CCITT_T_4) {
this.decompressor = new TIFFFaxDecompressor();
} else if (compression
== BaselineTIFFTagSet.COMPRESSION_CCITT_RLE) {
this.decompressor = new TIFFFaxDecompressor();
} else if (compression
== BaselineTIFFTagSet.COMPRESSION_PACKBITS) {
this.decompressor = new TIFFPackBitsDecompressor();
} else if (compression
== BaselineTIFFTagSet.COMPRESSION_LZW) {
TIFFField predictorField
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_PREDICTOR);
int predictor = ((predictorField == null)
? BaselineTIFFTagSet.PREDICTOR_NONE
: predictorField.getAsInt(0));
TIFFField fillOrderField
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_FILL_ORDER);
int fillOrder = ((fillOrderField == null)
? BaselineTIFFTagSet.FILL_ORDER_LEFT_TO_RIGHT
: fillOrderField.getAsInt(0));
this.decompressor = new TIFFLZWDecompressor(predictor, fillOrder);
} else if (compression
== BaselineTIFFTagSet.COMPRESSION_JPEG) {
this.decompressor = new TIFFJPEGDecompressor();
} else if (compression
== BaselineTIFFTagSet.COMPRESSION_ZLIB
|| compression
== BaselineTIFFTagSet.COMPRESSION_DEFLATE) {
TIFFField predictorField
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_PREDICTOR);
int predictor = ((predictorField == null)
? BaselineTIFFTagSet.PREDICTOR_NONE
: predictorField.getAsInt(0));
this.decompressor = new TIFFDeflateDecompressor(predictor);
} else if (compression
== BaselineTIFFTagSet.COMPRESSION_OLD_JPEG) {
TIFFField JPEGProcField
= imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_PROC);
if (JPEGProcField == null) {
processWarningOccurred("JPEGProc field missing; assuming baseline sequential JPEG process.");
} else if (JPEGProcField.getAsInt(0)
!= BaselineTIFFTagSet.JPEG_PROC_BASELINE) {
throw new IIOException("Old-style JPEG supported for baseline sequential JPEG process only!");
}
this.decompressor = new TIFFOldJPEGDecompressor();
//throw new IIOException("Old-style JPEG not supported!");
} else {
throw new IIOException("Unsupported compression type (tag value = "
+ compression + ")!");
}
if (photometricInterpretation
== BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_Y_CB_CR
&& compression != BaselineTIFFTagSet.COMPRESSION_JPEG
&& compression != BaselineTIFFTagSet.COMPRESSION_OLD_JPEG) {
boolean convertYCbCrToRGB
= theImage.getColorModel().getColorSpace().getType()
== ColorSpace.TYPE_RGB;
TIFFDecompressor wrappedDecompressor
= this.decompressor instanceof TIFFNullDecompressor
? null : this.decompressor;
this.decompressor
= new TIFFYCbCrDecompressor(wrappedDecompressor,
convertYCbCrToRGB);
}
TIFFColorConverter colorConverter = null;
if (photometricInterpretation
== BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_CIELAB
&& theImage.getColorModel().getColorSpace().getType()
== ColorSpace.TYPE_RGB) {
colorConverter = new TIFFCIELabColorConverter();
} else if (photometricInterpretation
== BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_Y_CB_CR
&& !(this.decompressor instanceof TIFFYCbCrDecompressor)
&& compression != BaselineTIFFTagSet.COMPRESSION_JPEG
&& compression != BaselineTIFFTagSet.COMPRESSION_OLD_JPEG) {
colorConverter = new TIFFYCbCrColorConverter(imageMetadata);
}
decompressor.setReader(this);
decompressor.setMetadata(imageMetadata);
decompressor.setImage(theImage);
decompressor.setPhotometricInterpretation(photometricInterpretation);
decompressor.setCompression(compression);
decompressor.setSamplesPerPixel(samplesPerPixel);
decompressor.setBitsPerSample(bitsPerSample);
decompressor.setSampleFormat(sampleFormat);
decompressor.setExtraSamples(extraSamples);
decompressor.setColorMap(colorMap);
decompressor.setColorConverter(colorConverter);
decompressor.setSourceXOffset(sourceXOffset);
decompressor.setSourceYOffset(sourceYOffset);
decompressor.setSubsampleX(srcXSubsampling);
decompressor.setSubsampleY(srcYSubsampling);
decompressor.setDstXOffset(dstXOffset);
decompressor.setDstYOffset(dstYOffset);
decompressor.setSourceBands(sourceBands);
decompressor.setDestinationBands(destinationBands);
// Compute bounds on the tile indices for this source region.
int minTileX
= TIFFImageWriter.XToTileX(srcRegion.x, 0, tileOrStripWidth);
int minTileY
= TIFFImageWriter.YToTileY(srcRegion.y, 0, tileOrStripHeight);
int maxTileX
= TIFFImageWriter.XToTileX(srcRegion.x + srcRegion.width - 1,
0, tileOrStripWidth);
int maxTileY
= TIFFImageWriter.YToTileY(srcRegion.y + srcRegion.height - 1,
0, tileOrStripHeight);
if (planarConfiguration
== BaselineTIFFTagSet.PLANAR_CONFIGURATION_PLANAR) {
decompressor.setPlanar(true);
int[] sb = new int[1];
int[] db = new int[1];
for (int tj = minTileY; tj <= maxTileY; tj++) {
for (int ti = minTileX; ti <= maxTileX; ti++) {
for (int band = 0; band < numBands; band++) {
sb[0] = sourceBands[band];
decompressor.setSourceBands(sb);
db[0] = destinationBands[band];
decompressor.setDestinationBands(db);
decodeTile(ti, tj, band);
}
reportProgress();
if (abortRequested()) {
processReadAborted();
return theImage;
}
}
}
} else {
for (int tj = minTileY; tj <= maxTileY; tj++) {
for (int ti = minTileX; ti <= maxTileX; ti++) {
decodeTile(ti, tj, -1);
reportProgress();
if (abortRequested()) {
processReadAborted();
return theImage;
}
}
}
}
processImageComplete();
return theImage;
}
public void reset() {
super.reset();
resetLocal();
}
protected void resetLocal() {
stream = null;
gotHeader = false;
imageReadParam = getDefaultReadParam();
streamMetadata = null;
currIndex = -1;
imageMetadata = null;
imageStartPosition = new ArrayList<Long>();
numImages = -1;
imageTypeMap = new HashMap<Integer, List<ImageTypeSpecifier>>();
width = -1;
height = -1;
numBands = -1;
tileOrStripWidth = -1;
tileOrStripHeight = -1;
planarConfiguration = BaselineTIFFTagSet.PLANAR_CONFIGURATION_CHUNKY;
}
/**
* Package scope method to allow decompressors, for example, to emit warning
* messages.
*/
void forwardWarningMessage(String warning) {
processWarningOccurred(warning);
}
}
⏎ com/sun/imageio/plugins/tiff/TIFFImageReader.java
Or download all of them as a single archive file:
File name: java.desktop-11.0.1-src.zip File size: 7974380 bytes Release date: 2018-11-04 Download
⇒ JDK 11 java.instrument.jmod - Instrument Module
2022-08-06, 192785👍, 5💬
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