/******************************************************************************* * Copyright (c) 2000, 2003 IBM Corporation and others. * All rights reserved. This program and the accompanying materials  * are made available under the terms of the Common Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/cpl-v10.html *  * Contributors: *     IBM Corporation - initial API and implementation *******************************************************************************/package org.eclipse.swt.internal.image;import org.eclipse.swt.*;import org.eclipse.swt.graphics.*;import java.io.*;/** * Baseline TIFF decoder revision 6.0 * Extension T4-encoding CCITT T.4 1D */final class TIFFFileFormat extends FileFormat {boolean isFileFormat(LEDataInputStream stream) {	try {		byte[] header = new byte[4];		stream.read(header);		stream.unread(header);		if (header[0] != header[1]) return false;		if (!(header[0] == 0x49 && header[2] == 42 && header[3] == 0) &&			!(header[0] == 0x4d && header[2] == 0 && header[3] == 42)) {			return false;		} 			return true;	} catch (Exception e) {		return false;	}}ImageData[] loadFromByteStream() {		byte[] header = new byte[8];	boolean isLittleEndian;	ImageData[] images = new ImageData[0];	TIFFRandomFileAccess file = new TIFFRandomFileAccess(inputStream);	try {		file.read(header);		if (header[0] != header[1]) SWT.error(SWT.ERROR_INVALID_IMAGE);		if (!(header[0] == 0x49 && header[2] == 42 && header[3] == 0) &&			!(header[0] == 0x4d && header[2] == 0 && header[3] == 42)) {			SWT.error(SWT.ERROR_INVALID_IMAGE);		} 		isLittleEndian = header[0] == 0x49;			int offset = isLittleEndian ? 			(header[4] & 0xFF) | ((header[5] & 0xFF) << 8) | ((header[6] & 0xFF) << 16) | ((header[7] & 0xFF) << 24) :			(header[7] & 0xFF) | ((header[6] & 0xFF) << 8) | ((header[5] & 0xFF) << 16) | ((header[4] & 0xFF) << 24);		file.seek(offset);		TIFFDirectory directory = new TIFFDirectory(file, isLittleEndian, loader);		ImageData image = directory.read();		/* A baseline reader is only expected to read the first directory */		images = new ImageData[] {image};	} catch (IOException e) {		SWT.error(SWT.ERROR_IO, e);	}	return images;}void unloadIntoByteStream(ImageData image) {	TIFFDirectory directory = new TIFFDirectory(image);	try {		directory.writeToStream(outputStream);	} catch (IOException e) {		SWT.error(SWT.ERROR_IO, e);	}}}