Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* Copyright (c) 2013, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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 HOLDER 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.
*/
package com.twelvemonkeys.imageio.metadata.tiff;
import com.twelvemonkeys.imageio.metadata.CompoundDirectory;
import com.twelvemonkeys.imageio.metadata.Directory;
import com.twelvemonkeys.imageio.metadata.Entry;
import com.twelvemonkeys.imageio.metadata.MetadataWriter;
import com.twelvemonkeys.lang.Validate;
import javax.imageio.IIOException;
import javax.imageio.stream.ImageOutputStream;
import java.io.IOException;
import java.nio.ByteOrder;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.*;
import static com.twelvemonkeys.imageio.metadata.tiff.TIFFEntry.getType;
import static com.twelvemonkeys.imageio.metadata.tiff.TIFFEntry.getValueLength;
/**
* TIFFWriter
*
* @author Harald Kuhr
* @author last modified by $Author: haraldk$
* @version $Id: TIFFWriter.java,v 1.0 17.07.13 10:20 haraldk Exp$
*/
public final class TIFFWriter extends MetadataWriter {
private static final int WORD_LENGTH = 2;
private static final int LONGWORD_LENGTH = 4;
private static final int ENTRY_LENGTH = 12;
public boolean write(final Collection entries, final ImageOutputStream stream) throws IOException {
return write(new IFD(entries), stream);
}
@Override
public boolean write(final Directory directory, final ImageOutputStream stream) throws IOException {
Validate.notNull(directory);
Validate.notNull(stream);
// TODO: Should probably validate that the directory contains only valid TIFF entries...
// the writer will crash on non-Integer ids and unsupported types
// TODO: Implement the above validation in IFD constructor?
writeTIFFHeader(stream);
if (directory instanceof CompoundDirectory) {
CompoundDirectory compoundDirectory = (CompoundDirectory) directory;
for (int i = 0; i < compoundDirectory.directoryCount(); i++) {
writeIFD(compoundDirectory.getDirectory(i), stream, false);
}
}
else {
writeIFD(directory, stream, false);
}
// Offset to next IFD (EOF)
stream.writeInt(0);
return true;
}
public void writeTIFFHeader(final ImageOutputStream stream) throws IOException {
// Header
ByteOrder byteOrder = stream.getByteOrder();
stream.writeShort(byteOrder == ByteOrder.BIG_ENDIAN ? TIFF.BYTE_ORDER_MARK_BIG_ENDIAN : TIFF.BYTE_ORDER_MARK_LITTLE_ENDIAN);
stream.writeShort(42);
}
public long writeIFD(final Collection entries, final ImageOutputStream stream) throws IOException {
Validate.notNull(entries);
Validate.notNull(stream);
return writeIFD(new IFD(entries), stream, false);
}
private long writeIFD(final Directory original, final ImageOutputStream stream, final boolean isSubIFD) throws IOException {
// TIFF spec says tags should be in increasing order, enforce that when writing
Directory ordered = ensureOrderedDirectory(original);
// Compute space needed for extra storage first, then write the offset to the IFD, so that the layout is:
// IFD offset
//
// IFD entries (values/offsets)
long dataOffset = stream.getStreamPosition();
long dataSize = computeDataSize(ordered);
// Offset to this IFD
final long ifdOffset = stream.getStreamPosition() + dataSize + LONGWORD_LENGTH;
if (!isSubIFD) {
stream.writeInt(assertIntegerOffset(ifdOffset));
dataOffset += LONGWORD_LENGTH;
// Seek to offset
stream.seek(ifdOffset);
}
else {
dataOffset += WORD_LENGTH + ordered.size() * ENTRY_LENGTH;
}
// Write directory
stream.writeShort(ordered.size());
for (Entry entry : ordered) {
// Write tag id
stream.writeShort((Integer) entry.getIdentifier());
// Write tag type
stream.writeShort(getType(entry));
// Write value count
stream.writeInt(getCount(entry));
// Write value
if (entry.getValue() instanceof Directory) {
// TODO: This could possibly be a compound directory, in which case the count should be > 1
stream.writeInt(assertIntegerOffset(dataOffset));
long streamPosition = stream.getStreamPosition();
stream.seek(dataOffset);
Directory subIFD = (Directory) entry.getValue();
writeIFD(subIFD, stream, true);
dataOffset += computeDataSize(subIFD);
stream.seek(streamPosition);
}
else {
dataOffset += writeValue(entry, dataOffset, stream);
}
}
return ifdOffset;
}
public long computeIFDSize(final Collection directory) {
return WORD_LENGTH + computeDataSize(new IFD(directory)) + directory.size() * ENTRY_LENGTH;
}
private long computeDataSize(final Directory directory) {
long dataSize = 0;
for (Entry entry : directory) {
long length = getValueLength(getType(entry), getCount(entry));
if (length < 0) {
throw new IllegalArgumentException(String.format("Unknown size for entry %s", entry));
}
if (length > LONGWORD_LENGTH) {
dataSize += length;
}
if (entry.getValue() instanceof Directory) {
Directory subIFD = (Directory) entry.getValue();
long subIFDSize = WORD_LENGTH + subIFD.size() * ENTRY_LENGTH + computeDataSize(subIFD);
dataSize += subIFDSize;
}
}
return dataSize;
}
private Directory ensureOrderedDirectory(final Directory directory) {
if (!isSorted(directory)) {
List entries = new ArrayList<>(directory.size());
for (Entry entry : directory) {
entries.add(entry);
}
Collections.sort(entries, new Comparator() {
public int compare(Entry left, Entry right) {
return (Integer) left.getIdentifier() - (Integer) right.getIdentifier();
}
});
return new IFD(entries);
}
return directory;
}
private boolean isSorted(final Directory directory) {
int lastTag = 0;
for (Entry entry : directory) {
int tag = ((Integer) entry.getIdentifier()) & 0xffff;
if (tag < lastTag) {
return false;
}
lastTag = tag;
}
return true;
}
private long writeValue(final Entry entry, final long dataOffset, final ImageOutputStream stream) throws IOException {
short type = getType(entry);
long valueLength = getValueLength(type, getCount(entry));
if (valueLength <= LONGWORD_LENGTH) {
writeValueInline(entry.getValue(), type, stream);
// Pad
for (long i = valueLength; i < LONGWORD_LENGTH; i++) {
stream.write(0);
}
return 0;
}
else {
writeValueAt(dataOffset, entry.getValue(), type, stream);
return valueLength;
}
}
private int getCount(final Entry entry) {
Object value = entry.getValue();
return value instanceof String ? ((String) value).getBytes(Charset.forName("UTF-8")).length + 1 : entry.valueCount();
}
private void writeValueInline(final Object value, final short type, final ImageOutputStream stream) throws IOException {
if (value.getClass().isArray()) {
switch (type) {
case TIFF.TYPE_UNDEFINED:
case TIFF.TYPE_BYTE:
case TIFF.TYPE_SBYTE:
stream.write((byte[]) value);
break;
case TIFF.TYPE_SHORT:
case TIFF.TYPE_SSHORT:
short[] shorts;
if (value instanceof short[]) {
shorts = (short[]) value;
}
else if (value instanceof int[]) {
int[] ints = (int[]) value;
shorts = new short[ints.length];
for (int i = 0; i < ints.length; i++) {
shorts[i] = (short) ints[i];
}
}
else if (value instanceof long[]) {
long[] longs = (long[]) value;
shorts = new short[longs.length];
for (int i = 0; i < longs.length; i++) {
shorts[i] = (short) longs[i];
}
}
else {
throw new IllegalArgumentException("Unsupported type for TIFF SHORT: " + value.getClass());
}
stream.writeShorts(shorts, 0, shorts.length);
break;
case TIFF.TYPE_LONG:
case TIFF.TYPE_SLONG:
int[] ints;
if (value instanceof int[]) {
ints = (int[]) value;
}
else if (value instanceof long[]) {
long[] longs = (long[]) value;
ints = new int[longs.length];
for (int i = 0; i < longs.length; i++) {
ints[i] = (int) longs[i];
}
}
else {
throw new IllegalArgumentException("Unsupported type for TIFF LONG: " + value.getClass());
}
stream.writeInts(ints, 0, ints.length);
break;
case TIFF.TYPE_RATIONAL:
case TIFF.TYPE_SRATIONAL:
Rational[] rationals = (Rational[]) value;
for (Rational rational : rationals) {
stream.writeInt((int) rational.numerator());
stream.writeInt((int) rational.denominator());
}
break;
case TIFF.TYPE_FLOAT:
float[] floats;
if (value instanceof float[]) {
floats = (float[]) value;
}
else {
throw new IllegalArgumentException("Unsupported type for TIFF FLOAT: " + value.getClass());
}
stream.writeFloats(floats, 0, floats.length);
break;
case TIFF.TYPE_DOUBLE:
double[] doubles;
if (value instanceof double[]) {
doubles = (double[]) value;
}
else {
throw new IllegalArgumentException("Unsupported type for TIFF FLOAT: " + value.getClass());
}
stream.writeDoubles(doubles, 0, doubles.length);
break;
default:
throw new IllegalArgumentException("Unsupported TIFF type: " + type);
}
}
else {
switch (type) {
case TIFF.TYPE_BYTE:
case TIFF.TYPE_SBYTE:
case TIFF.TYPE_UNDEFINED:
stream.writeByte(((Number) value).intValue());
break;
case TIFF.TYPE_ASCII:
byte[] bytes = ((String) value).getBytes(StandardCharsets.UTF_8);
stream.write(bytes);
stream.write(0);
break;
case TIFF.TYPE_SHORT:
case TIFF.TYPE_SSHORT:
stream.writeShort(((Number) value).intValue());
break;
case TIFF.TYPE_LONG:
case TIFF.TYPE_SLONG:
stream.writeInt(((Number) value).intValue());
break;
case TIFF.TYPE_RATIONAL:
case TIFF.TYPE_SRATIONAL:
Rational rational = (Rational) value;
stream.writeInt((int) rational.numerator());
stream.writeInt((int) rational.denominator());
break;
case TIFF.TYPE_FLOAT:
stream.writeFloat(((Number) value).floatValue());
break;
case TIFF.TYPE_DOUBLE:
stream.writeDouble(((Number) value).doubleValue());
break;
default:
throw new IllegalArgumentException("Unsupported TIFF type: " + type);
}
}
}
private void writeValueAt(final long dataOffset, final Object value, final short type, final ImageOutputStream stream) throws IOException {
stream.writeInt(assertIntegerOffset(dataOffset));
long position = stream.getStreamPosition();
stream.seek(dataOffset);
writeValueInline(value, type, stream);
stream.seek(position);
}
private int assertIntegerOffset(long offset) throws IIOException {
if (offset > Integer.MAX_VALUE - (long) Integer.MIN_VALUE) {
throw new IIOException("Integer overflow for TIFF stream");
}
return (int) offset;
}
}
