diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/codec/TiffImage.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/codec/TiffImage.java | 522 |
1 files changed, 0 insertions, 522 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/codec/TiffImage.java b/src/main/java/com/lowagie/text/pdf/codec/TiffImage.java deleted file mode 100644 index cc812d7..0000000 --- a/src/main/java/com/lowagie/text/pdf/codec/TiffImage.java +++ /dev/null @@ -1,522 +0,0 @@ -/*
- * Copyright 2003-2005 by Paulo Soares.
- *
- * The contents of this file are subject to the Mozilla Public License Version 1.1
- * (the "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the License.
- *
- * The Original Code is 'iText, a free JAVA-PDF library'.
- *
- * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
- * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
- * All Rights Reserved.
- * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
- * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
- *
- * Contributor(s): all the names of the contributors are added in the source code
- * where applicable.
- *
- * Alternatively, the contents of this file may be used under the terms of the
- * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
- * provisions of LGPL are applicable instead of those above. If you wish to
- * allow use of your version of this file only under the terms of the LGPL
- * License and not to allow others to use your version of this file under
- * the MPL, indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by the LGPL.
- * If you do not delete the provisions above, a recipient may use your version
- * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
- *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the MPL as stated above or under the terms of the GNU
- * Library General Public License as published by the Free Software Foundation;
- * either version 2 of the License, or any later version.
- *
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
- * details.
- *
- * If you didn't download this code from the following link, you should check if
- * you aren't using an obsolete version:
- * http://www.lowagie.com/iText/
- */
-package com.lowagie.text.pdf.codec;
-import com.lowagie.text.pdf.*;
-import com.lowagie.text.Image;
-import com.lowagie.text.Jpeg;
-import com.lowagie.text.ExceptionConverter;
-import java.io.*;
-import java.util.zip.*;
-import java.awt.color.ICC_Profile;
-
-/** Reads TIFF images
- * @author Paulo Soares (psoares@consiste.pt)
- */
-public class TiffImage {
-
- /** Gets the number of pages the TIFF document has.
- * @param s the file source
- * @return the number of pages
- */
- public static int getNumberOfPages(RandomAccessFileOrArray s) {
- try {
- return TIFFDirectory.getNumDirectories(s);
- }
- catch (Exception e) {
- throw new ExceptionConverter(e);
- }
- }
-
- static int getDpi(TIFFField fd, int resolutionUnit) {
- if (fd == null)
- return 0;
- long res[] = fd.getAsRational(0);
- float frac = (float)res[0] / (float)res[1];
- int dpi = 0;
- switch (resolutionUnit) {
- case TIFFConstants.RESUNIT_INCH:
- case TIFFConstants.RESUNIT_NONE:
- dpi = (int)frac;
- break;
- case TIFFConstants.RESUNIT_CENTIMETER:
- dpi = (int)(frac * 2.54);
- break;
- }
- return dpi;
- }
-
- /** Reads a page from a TIFF image. Direct mode is not used.
- * @param s the file source
- * @param page the page to get. The first page is 1
- * @return the <CODE>Image</CODE>
- */
- public static Image getTiffImage(RandomAccessFileOrArray s, int page) {
- return getTiffImage(s, page, false);
- }
-
- /** Reads a page from a TIFF image.
- * @param s the file source
- * @param page the page to get. The first page is 1
- * @param direct for single strip, CCITT images, generate the image
- * by direct byte copying. It's faster but may not work
- * every time
- * @return the <CODE>Image</CODE>
- */
- public static Image getTiffImage(RandomAccessFileOrArray s, int page, boolean direct) {
- if (page < 1)
- throw new IllegalArgumentException("The page number must be >= 1.");
- try {
- TIFFDirectory dir = new TIFFDirectory(s, page - 1);
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_TILEWIDTH))
- throw new IllegalArgumentException("Tiles are not supported.");
- int compression = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_COMPRESSION);
- switch (compression) {
- case TIFFConstants.COMPRESSION_CCITTRLEW:
- case TIFFConstants.COMPRESSION_CCITTRLE:
- case TIFFConstants.COMPRESSION_CCITTFAX3:
- case TIFFConstants.COMPRESSION_CCITTFAX4:
- break;
- default:
- return getTiffImageColor(dir, s);
- }
- float rotation = 0;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_ORIENTATION)) {
- int rot = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_ORIENTATION);
- if (rot == TIFFConstants.ORIENTATION_BOTRIGHT || rot == TIFFConstants.ORIENTATION_BOTLEFT)
- rotation = (float)Math.PI;
- else if (rot == TIFFConstants.ORIENTATION_LEFTTOP || rot == TIFFConstants.ORIENTATION_LEFTBOT)
- rotation = (float)(Math.PI / 2.0);
- else if (rot == TIFFConstants.ORIENTATION_RIGHTTOP || rot == TIFFConstants.ORIENTATION_RIGHTBOT)
- rotation = -(float)(Math.PI / 2.0);
- }
-
- Image img = null;
- long tiffT4Options = 0;
- long tiffT6Options = 0;
- int fillOrder = 1;
- int h = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_IMAGELENGTH);
- int w = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_IMAGEWIDTH);
- int dpiX = 0;
- int dpiY = 0;
- float XYRatio = 0;
- int resolutionUnit = TIFFConstants.RESUNIT_INCH;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_RESOLUTIONUNIT))
- resolutionUnit = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_RESOLUTIONUNIT);
- dpiX = getDpi(dir.getField(TIFFConstants.TIFFTAG_XRESOLUTION), resolutionUnit);
- dpiY = getDpi(dir.getField(TIFFConstants.TIFFTAG_YRESOLUTION), resolutionUnit);
- if (resolutionUnit == TIFFConstants.RESUNIT_NONE) {
- if (dpiY != 0)
- XYRatio = (float)dpiX / (float)dpiY;
- dpiX = 0;
- dpiY = 0;
- }
- long tstrip = 0xFFFFFFFFL;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_ROWSPERSTRIP))
- tstrip = dir.getFieldAsLong(TIFFConstants.TIFFTAG_ROWSPERSTRIP);
- int rowsStrip = (int)Math.min(h, tstrip);
- long offset[] = getArrayLongShort(dir, TIFFConstants.TIFFTAG_STRIPOFFSETS);
- long size[] = getArrayLongShort(dir, TIFFConstants.TIFFTAG_STRIPBYTECOUNTS);
- if (size == null && h == rowsStrip) { // some TIFF producers are really lousy, so...
- size = new long[]{s.length() - (int)offset[0]};
- }
- boolean reverse = false;
- TIFFField fillOrderField = dir.getField(TIFFConstants.TIFFTAG_FILLORDER);
- if (fillOrderField != null)
- fillOrder = fillOrderField.getAsInt(0);
- reverse = (fillOrder == TIFFConstants.FILLORDER_LSB2MSB);
- int params = 0;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_PHOTOMETRIC)) {
- long photo = dir.getFieldAsLong(TIFFConstants.TIFFTAG_PHOTOMETRIC);
- if (photo == TIFFConstants.PHOTOMETRIC_MINISBLACK)
- params |= Image.CCITT_BLACKIS1;
- }
- int imagecomp = 0;
- switch (compression) {
- case TIFFConstants.COMPRESSION_CCITTRLEW:
- case TIFFConstants.COMPRESSION_CCITTRLE:
- imagecomp = Image.CCITTG3_1D;
- params |= Image.CCITT_ENCODEDBYTEALIGN | Image.CCITT_ENDOFBLOCK;
- break;
- case TIFFConstants.COMPRESSION_CCITTFAX3:
- imagecomp = Image.CCITTG3_1D;
- params |= Image.CCITT_ENDOFLINE | Image.CCITT_ENDOFBLOCK;
- TIFFField t4OptionsField = dir.getField(TIFFConstants.TIFFTAG_GROUP3OPTIONS);
- if (t4OptionsField != null) {
- tiffT4Options = t4OptionsField.getAsLong(0);
- if ((tiffT4Options & TIFFConstants.GROUP3OPT_2DENCODING) != 0)
- imagecomp = Image.CCITTG3_2D;
- if ((tiffT4Options & TIFFConstants.GROUP3OPT_FILLBITS) != 0)
- params |= Image.CCITT_ENCODEDBYTEALIGN;
- }
- break;
- case TIFFConstants.COMPRESSION_CCITTFAX4:
- imagecomp = Image.CCITTG4;
- TIFFField t6OptionsField = dir.getField(TIFFConstants.TIFFTAG_GROUP4OPTIONS);
- if (t6OptionsField != null)
- tiffT6Options = t6OptionsField.getAsLong(0);
- break;
- }
- if (direct && rowsStrip == h) { //single strip, direct
- byte im[] = new byte[(int)size[0]];
- s.seek(offset[0]);
- s.readFully(im);
- img = Image.getInstance(w, h, reverse, imagecomp, params, im);
- img.setInverted(true);
- }
- else {
- int rowsLeft = h;
- CCITTG4Encoder g4 = new CCITTG4Encoder(w);
- for (int k = 0; k < offset.length; ++k) {
- byte im[] = new byte[(int)size[k]];
- s.seek(offset[k]);
- s.readFully(im);
- int height = Math.min(rowsStrip, rowsLeft);
- TIFFFaxDecoder decoder = new TIFFFaxDecoder(fillOrder, w, height);
- byte outBuf[] = new byte[(w + 7) / 8 * height];
- switch (compression) {
- case TIFFConstants.COMPRESSION_CCITTRLEW:
- case TIFFConstants.COMPRESSION_CCITTRLE:
- decoder.decode1D(outBuf, im, 0, height);
- g4.fax4Encode(outBuf,height);
- break;
- case TIFFConstants.COMPRESSION_CCITTFAX3:
- try {
- decoder.decode2D(outBuf, im, 0, height, tiffT4Options);
- }
- catch (Exception e) {
- // let's flip the fill bits and try again...
- tiffT4Options ^= TIFFConstants.GROUP3OPT_FILLBITS;
- try {
- decoder.decode2D(outBuf, im, 0, height, tiffT4Options);
- }
- catch (Exception e2) {
- throw e;
- }
- }
- g4.fax4Encode(outBuf, height);
- break;
- case TIFFConstants.COMPRESSION_CCITTFAX4:
- decoder.decodeT6(outBuf, im, 0, height, tiffT6Options);
- g4.fax4Encode(outBuf, height);
- break;
- }
- rowsLeft -= rowsStrip;
- }
- byte g4pic[] = g4.close();
- img = Image.getInstance(w, h, false, Image.CCITTG4, params & Image.CCITT_BLACKIS1, g4pic);
- }
- img.setDpi(dpiX, dpiY);
- img.setXYRatio(XYRatio);
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_ICCPROFILE)) {
- try {
- TIFFField fd = dir.getField(TIFFConstants.TIFFTAG_ICCPROFILE);
- ICC_Profile icc_prof = ICC_Profile.getInstance(fd.getAsBytes());
- if (icc_prof.getNumComponents() == 1)
- img.tagICC(icc_prof);
- }
- catch (Exception e) {
- //empty
- }
- }
- img.setOriginalType(Image.ORIGINAL_TIFF);
- if (rotation != 0)
- img.setInitialRotation(rotation);
- return img;
- }
- catch (Exception e) {
- throw new ExceptionConverter(e);
- }
- }
-
- protected static Image getTiffImageColor(TIFFDirectory dir, RandomAccessFileOrArray s) {
- try {
- int compression = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_COMPRESSION);
- int predictor = 1;
- TIFFLZWDecoder lzwDecoder = null;
- switch (compression) {
- case TIFFConstants.COMPRESSION_NONE:
- case TIFFConstants.COMPRESSION_LZW:
- case TIFFConstants.COMPRESSION_PACKBITS:
- case TIFFConstants.COMPRESSION_DEFLATE:
- case TIFFConstants.COMPRESSION_OJPEG:
- break;
- default:
- throw new IllegalArgumentException("The compression " + compression + " is not supported.");
- }
- int photometric = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_PHOTOMETRIC);
- switch (photometric) {
- case TIFFConstants.PHOTOMETRIC_MINISWHITE:
- case TIFFConstants.PHOTOMETRIC_MINISBLACK:
- case TIFFConstants.PHOTOMETRIC_RGB:
- case TIFFConstants.PHOTOMETRIC_SEPARATED:
- case TIFFConstants.PHOTOMETRIC_PALETTE:
- break;
- default:
- throw new IllegalArgumentException("The photometric " + photometric + " is not supported.");
- }
- float rotation = 0;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_ORIENTATION)) {
- int rot = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_ORIENTATION);
- if (rot == TIFFConstants.ORIENTATION_BOTRIGHT || rot == TIFFConstants.ORIENTATION_BOTLEFT)
- rotation = (float)Math.PI;
- else if (rot == TIFFConstants.ORIENTATION_LEFTTOP || rot == TIFFConstants.ORIENTATION_LEFTBOT)
- rotation = (float)(Math.PI / 2.0);
- else if (rot == TIFFConstants.ORIENTATION_RIGHTTOP || rot == TIFFConstants.ORIENTATION_RIGHTBOT)
- rotation = -(float)(Math.PI / 2.0);
- }
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_PLANARCONFIG)
- && dir.getFieldAsLong(TIFFConstants.TIFFTAG_PLANARCONFIG) == TIFFConstants.PLANARCONFIG_SEPARATE)
- throw new IllegalArgumentException("Planar images are not supported.");
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_EXTRASAMPLES))
- throw new IllegalArgumentException("Extra samples are not supported.");
- int samplePerPixel = 1;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_SAMPLESPERPIXEL)) // 1,3,4
- samplePerPixel = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_SAMPLESPERPIXEL);
- int bitsPerSample = 1;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_BITSPERSAMPLE))
- bitsPerSample = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_BITSPERSAMPLE);
- switch (bitsPerSample) {
- case 1:
- case 2:
- case 4:
- case 8:
- break;
- default:
- throw new IllegalArgumentException("Bits per sample " + bitsPerSample + " is not supported.");
- }
- Image img = null;
-
- int h = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_IMAGELENGTH);
- int w = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_IMAGEWIDTH);
- int dpiX = 0;
- int dpiY = 0;
- int resolutionUnit = TIFFConstants.RESUNIT_INCH;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_RESOLUTIONUNIT))
- resolutionUnit = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_RESOLUTIONUNIT);
- dpiX = getDpi(dir.getField(TIFFConstants.TIFFTAG_XRESOLUTION), resolutionUnit);
- dpiY = getDpi(dir.getField(TIFFConstants.TIFFTAG_YRESOLUTION), resolutionUnit);
- int rowsStrip = h;
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_ROWSPERSTRIP)) //another hack for broken tiffs
- rowsStrip = (int)dir.getFieldAsLong(TIFFConstants.TIFFTAG_ROWSPERSTRIP);
- long offset[] = getArrayLongShort(dir, TIFFConstants.TIFFTAG_STRIPOFFSETS);
- long size[] = getArrayLongShort(dir, TIFFConstants.TIFFTAG_STRIPBYTECOUNTS);
- if (size == null && h == rowsStrip) { // some TIFF producers are really lousy, so...
- size = new long[]{s.length() - (int)offset[0]};
- }
- if (compression == TIFFConstants.COMPRESSION_LZW) {
- TIFFField predictorField = dir.getField(TIFFConstants.TIFFTAG_PREDICTOR);
- if (predictorField != null) {
- predictor = predictorField.getAsInt(0);
- if (predictor != 1 && predictor != 2) {
- throw new RuntimeException("Illegal value for Predictor in TIFF file.");
- }
- if (predictor == 2 && bitsPerSample != 8) {
- throw new RuntimeException(bitsPerSample + "-bit samples are not supported for Horizontal differencing Predictor.");
- }
- }
- lzwDecoder = new TIFFLZWDecoder(w, predictor,
- samplePerPixel);
- }
- int rowsLeft = h;
- ByteArrayOutputStream stream = null;
- DeflaterOutputStream zip = null;
- CCITTG4Encoder g4 = null;
- if (bitsPerSample == 1 && samplePerPixel == 1) {
- g4 = new CCITTG4Encoder(w);
- }
- else {
- stream = new ByteArrayOutputStream();
- if (compression != TIFFConstants.COMPRESSION_OJPEG)
- zip = new DeflaterOutputStream(stream);
- }
- for (int k = 0; k < offset.length; ++k) {
- byte im[] = new byte[(int)size[k]];
- s.seek(offset[k]);
- s.readFully(im);
- int height = Math.min(rowsStrip, rowsLeft);
- byte outBuf[] = null;
- if (compression != TIFFConstants.COMPRESSION_NONE)
- outBuf = new byte[(w * bitsPerSample * samplePerPixel + 7) / 8 * height];
- switch (compression) {
- case TIFFConstants.COMPRESSION_DEFLATE:
- inflate(im, outBuf);
- break;
- case TIFFConstants.COMPRESSION_NONE:
- outBuf = im;
- break;
- case TIFFConstants.COMPRESSION_PACKBITS:
- decodePackbits(im, outBuf);
- break;
- case TIFFConstants.COMPRESSION_LZW:
- lzwDecoder.decode(im, outBuf, height);
- break;
- case TIFFConstants.COMPRESSION_OJPEG:
- stream.write(im);
- break;
- }
- if (bitsPerSample == 1 && samplePerPixel == 1) {
- g4.fax4Encode(outBuf, height);
- }
- else if (compression != TIFFConstants.COMPRESSION_OJPEG) {
- zip.write(outBuf);
- }
- rowsLeft -= rowsStrip;
- }
- if (bitsPerSample == 1 && samplePerPixel == 1) {
- img = Image.getInstance(w, h, false, Image.CCITTG4,
- photometric == TIFFConstants.PHOTOMETRIC_MINISBLACK ? Image.CCITT_BLACKIS1 : 0, g4.close());
- }
- else {
- if (compression == TIFFConstants.COMPRESSION_OJPEG) {
- img = new Jpeg(stream.toByteArray());
- }
- else {
- zip.close();
- img = Image.getInstance(w, h, samplePerPixel, bitsPerSample, stream.toByteArray());
- img.setDeflated(true);
- }
- }
- img.setDpi(dpiX, dpiY);
- if (compression != TIFFConstants.COMPRESSION_OJPEG) {
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_ICCPROFILE)) {
- try {
- TIFFField fd = dir.getField(TIFFConstants.TIFFTAG_ICCPROFILE);
- ICC_Profile icc_prof = ICC_Profile.getInstance(fd.getAsBytes());
- if (samplePerPixel == icc_prof.getNumComponents())
- img.tagICC(icc_prof);
- }
- catch (Exception e) {
- //empty
- }
- }
- if (dir.isTagPresent(TIFFConstants.TIFFTAG_COLORMAP)) {
- TIFFField fd = dir.getField(TIFFConstants.TIFFTAG_COLORMAP);
- char rgb[] = fd.getAsChars();
- byte palette[] = new byte[rgb.length];
- int gColor = rgb.length / 3;
- int bColor = gColor * 2;
- for (int k = 0; k < gColor; ++k) {
- palette[k * 3] = (byte)(rgb[k] >>> 8);
- palette[k * 3 + 1] = (byte)(rgb[k + gColor] >>> 8);
- palette[k * 3 + 2] = (byte)(rgb[k + bColor] >>> 8);
- }
- PdfArray indexed = new PdfArray();
- indexed.add(PdfName.INDEXED);
- indexed.add(PdfName.DEVICERGB);
- indexed.add(new PdfNumber(gColor - 1));
- indexed.add(new PdfString(palette));
- PdfDictionary additional = new PdfDictionary();
- additional.put(PdfName.COLORSPACE, indexed);
- img.setAdditional(additional);
- }
- img.setOriginalType(Image.ORIGINAL_TIFF);
- }
- if (photometric == TIFFConstants.PHOTOMETRIC_MINISWHITE)
- img.setInverted(true);
- if (rotation != 0)
- img.setInitialRotation(rotation);
- return img;
- }
- catch (Exception e) {
- throw new ExceptionConverter(e);
- }
- }
-
- static long[] getArrayLongShort(TIFFDirectory dir, int tag) {
- TIFFField field = dir.getField(tag);
- if (field == null)
- return null;
- long offset[];
- if (field.getType() == TIFFField.TIFF_LONG)
- offset = field.getAsLongs();
- else { // must be short
- char temp[] = field.getAsChars();
- offset = new long[temp.length];
- for (int k = 0; k < temp.length; ++k)
- offset[k] = temp[k];
- }
- return offset;
- }
-
- // Uncompress packbits compressed image data.
- public static void decodePackbits(byte data[], byte[] dst) {
- int srcCount = 0, dstCount = 0;
- byte repeat, b;
-
- while (dstCount < dst.length) {
- b = data[srcCount++];
- if (b >= 0 && b <= 127) {
- // literal run packet
- for (int i=0; i<(b + 1); i++) {
- dst[dstCount++] = data[srcCount++];
- }
-
- } else if (b <= -1 && b >= -127) {
- // 2 byte encoded run packet
- repeat = data[srcCount++];
- for (int i=0; i<(-b + 1); i++) {
- dst[dstCount++] = repeat;
- }
- } else {
- // no-op packet. Do nothing
- srcCount++;
- }
- }
- }
-
- public static void inflate(byte[] deflated, byte[] inflated) {
- Inflater inflater = new Inflater();
- inflater.setInput(deflated);
- try {
- inflater.inflate(inflated);
- }
- catch(DataFormatException dfe) {
- throw new ExceptionConverter(dfe);
- }
- }
-
-}
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