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Apache Commons Imaging (previously Sanselan) is a pure-Java image library.
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.imaging.formats.psd;
import static org.apache.commons.imaging.common.BinaryFunctions.read2Bytes;
import static org.apache.commons.imaging.common.BinaryFunctions.read4Bytes;
import static org.apache.commons.imaging.common.BinaryFunctions.readAndVerifyBytes;
import static org.apache.commons.imaging.common.BinaryFunctions.readByte;
import static org.apache.commons.imaging.common.BinaryFunctions.readBytes;
import static org.apache.commons.imaging.common.BinaryFunctions.skipBytes;
import java.awt.Dimension;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.nio.ByteOrder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.commons.imaging.ImageFormat;
import org.apache.commons.imaging.ImageFormats;
import org.apache.commons.imaging.ImageInfo;
import org.apache.commons.imaging.ImageParser;
import org.apache.commons.imaging.ImageReadException;
import org.apache.commons.imaging.common.ImageMetadata;
import org.apache.commons.imaging.common.bytesource.ByteSource;
import org.apache.commons.imaging.formats.psd.dataparsers.DataParser;
import org.apache.commons.imaging.formats.psd.dataparsers.DataParserBitmap;
import org.apache.commons.imaging.formats.psd.dataparsers.DataParserCmyk;
import org.apache.commons.imaging.formats.psd.dataparsers.DataParserGrayscale;
import org.apache.commons.imaging.formats.psd.dataparsers.DataParserIndexed;
import org.apache.commons.imaging.formats.psd.dataparsers.DataParserLab;
import org.apache.commons.imaging.formats.psd.dataparsers.DataParserRgb;
import org.apache.commons.imaging.formats.psd.datareaders.CompressedDataReader;
import org.apache.commons.imaging.formats.psd.datareaders.DataReader;
import org.apache.commons.imaging.formats.psd.datareaders.UncompressedDataReader;
public class PsdImageParser extends ImageParser {
private static final String DEFAULT_EXTENSION = ".psd";
private static final String[] ACCEPTED_EXTENSIONS = { DEFAULT_EXTENSION, };
private static final int PSD_SECTION_HEADER = 0;
private static final int PSD_SECTION_COLOR_MODE = 1;
private static final int PSD_SECTION_IMAGE_RESOURCES = 2;
private static final int PSD_SECTION_LAYER_AND_MASK_DATA = 3;
private static final int PSD_SECTION_IMAGE_DATA = 4;
private static final int PSD_HEADER_LENGTH = 26;
private static final int COLOR_MODE_INDEXED = 2;
public static final int IMAGE_RESOURCE_ID_ICC_PROFILE = 0x040F;
public static final int IMAGE_RESOURCE_ID_XMP = 0x0424;
public static final String BLOCK_NAME_XMP = "XMP";
public PsdImageParser() {
super.setByteOrder(ByteOrder.BIG_ENDIAN);
// setDebug(true);
}
@Override
public String getName() {
return "PSD-Custom";
}
@Override
public String getDefaultExtension() {
return DEFAULT_EXTENSION;
}
@Override
protected String[] getAcceptedExtensions() {
return ACCEPTED_EXTENSIONS.clone();
}
@Override
protected ImageFormat[] getAcceptedTypes() {
return new ImageFormat[] { ImageFormats.PSD, //
};
}
private PsdHeaderInfo readHeader(final ByteSource byteSource)
throws ImageReadException, IOException {
try (InputStream is = byteSource.getInputStream()) {
final PsdHeaderInfo ret = readHeader(is);
return ret;
}
}
private PsdHeaderInfo readHeader(final InputStream is) throws ImageReadException, IOException {
readAndVerifyBytes(is, new byte[] { 56, 66, 80, 83 }, "Not a Valid PSD File");
final int version = read2Bytes("Version", is, "Not a Valid PSD File", getByteOrder());
final byte[] reserved = readBytes("Reserved", is, 6, "Not a Valid PSD File");
final int channels = read2Bytes("Channels", is, "Not a Valid PSD File", getByteOrder());
final int rows = read4Bytes("Rows", is, "Not a Valid PSD File", getByteOrder());
final int columns = read4Bytes("Columns", is, "Not a Valid PSD File", getByteOrder());
final int depth = read2Bytes("Depth", is, "Not a Valid PSD File", getByteOrder());
final int mode = read2Bytes("Mode", is, "Not a Valid PSD File", getByteOrder());
return new PsdHeaderInfo(version, reserved, channels, rows, columns, depth, mode);
}
private PsdImageContents readImageContents(final InputStream is)
throws ImageReadException, IOException {
final PsdHeaderInfo header = readHeader(is);
final int ColorModeDataLength = read4Bytes("ColorModeDataLength", is,
"Not a Valid PSD File", getByteOrder());
skipBytes(is, ColorModeDataLength);
// is.skip(ColorModeDataLength);
// byte ColorModeData[] = readByteArray("ColorModeData",
// ColorModeDataLength, is, "Not a Valid PSD File");
final int ImageResourcesLength = read4Bytes("ImageResourcesLength", is,
"Not a Valid PSD File", getByteOrder());
skipBytes(is, ImageResourcesLength);
// long skipped = is.skip(ImageResourcesLength);
// byte ImageResources[] = readByteArray("ImageResources",
// ImageResourcesLength, is, "Not a Valid PSD File");
final int LayerAndMaskDataLength = read4Bytes("LayerAndMaskDataLength", is,
"Not a Valid PSD File", getByteOrder());
skipBytes(is, LayerAndMaskDataLength);
// is.skip(LayerAndMaskDataLength);
// byte LayerAndMaskData[] = readByteArray("LayerAndMaskData",
// LayerAndMaskDataLength, is, "Not a Valid PSD File");
final int Compression = read2Bytes("Compression", is, "Not a Valid PSD File", getByteOrder());
// skip_bytes(is, LayerAndMaskDataLength);
// byte ImageData[] = readByteArray("ImageData", LayerAndMaskDataLength,
// is, "Not a Valid PSD File");
// System.out.println("Compression: " + Compression);
return new PsdImageContents(header, ColorModeDataLength,
// ColorModeData,
ImageResourcesLength,
// ImageResources,
LayerAndMaskDataLength,
// LayerAndMaskData,
Compression);
}
private List readImageResourceBlocks(final byte[] bytes,
final int[] imageResourceIDs, final int maxBlocksToRead)
throws ImageReadException, IOException {
return readImageResourceBlocks(new ByteArrayInputStream(bytes),
imageResourceIDs, maxBlocksToRead, bytes.length);
}
private boolean keepImageResourceBlock(final int ID, final int[] imageResourceIDs) {
if (imageResourceIDs == null) {
return true;
}
for (final int imageResourceID : imageResourceIDs) {
if (ID == imageResourceID) {
return true;
}
}
return false;
}
private List readImageResourceBlocks(final InputStream is,
final int[] imageResourceIDs, final int maxBlocksToRead, int available)
throws ImageReadException, IOException {
final List result = new ArrayList<>();
while (available > 0) {
readAndVerifyBytes(is, new byte[] { 56, 66, 73, 77 },
"Not a Valid PSD File");
available -= 4;
final int id = read2Bytes("ID", is, "Not a Valid PSD File", getByteOrder());
available -= 2;
final int nameLength = readByte("NameLength", is, "Not a Valid PSD File");
available -= 1;
final byte[] nameBytes = readBytes("NameData", is, nameLength,
"Not a Valid PSD File");
available -= nameLength;
if (((nameLength + 1) % 2) != 0) {
//final int NameDiscard =
readByte("NameDiscard", is,
"Not a Valid PSD File");
available -= 1;
}
// String Name = readPString("Name", 6, is, "Not a Valid PSD File");
final int dataSize = read4Bytes("Size", is, "Not a Valid PSD File", getByteOrder());
available -= 4;
// int ActualDataSize = ((DataSize % 2) == 0)
// ? DataSize
// : DataSize + 1; // pad to make even
final byte[] data = readBytes("Data", is, dataSize, "Not a Valid PSD File");
available -= dataSize;
if ((dataSize % 2) != 0) {
//final int DataDiscard =
readByte("DataDiscard", is, "Not a Valid PSD File");
available -= 1;
}
if (keepImageResourceBlock(id, imageResourceIDs)) {
result.add(new ImageResourceBlock(id, nameBytes, data));
if ((maxBlocksToRead >= 0)
&& (result.size() >= maxBlocksToRead)) {
return result;
}
}
// debugNumber("ID", ID, 2);
}
return result;
}
private List readImageResourceBlocks(
final ByteSource byteSource, final int[] imageResourceIDs, final int maxBlocksToRead)
throws ImageReadException, IOException {
try (InputStream imageStream = byteSource.getInputStream();
InputStream resourceStream = this.getInputStream(byteSource, PSD_SECTION_IMAGE_RESOURCES)) {
final PsdImageContents imageContents = readImageContents(imageStream);
final byte[] ImageResources = readBytes("ImageResources",
resourceStream, imageContents.ImageResourcesLength,
"Not a Valid PSD File");
final List ret = readImageResourceBlocks(ImageResources, imageResourceIDs,
maxBlocksToRead);
return ret;
}
}
private InputStream getInputStream(final ByteSource byteSource, final int section)
throws ImageReadException, IOException {
InputStream is = null;
boolean notFound = false;
try {
is = byteSource.getInputStream();
if (section == PSD_SECTION_HEADER) {
return is;
}
skipBytes(is, PSD_HEADER_LENGTH);
// is.skip(kHeaderLength);
final int colorModeDataLength = read4Bytes("ColorModeDataLength", is, "Not a Valid PSD File", getByteOrder());
if (section == PSD_SECTION_COLOR_MODE) {
return is;
}
skipBytes(is, colorModeDataLength);
// byte ColorModeData[] = readByteArray("ColorModeData",
// ColorModeDataLength, is, "Not a Valid PSD File");
final int imageResourcesLength = read4Bytes("ImageResourcesLength", is, "Not a Valid PSD File", getByteOrder());
if (section == PSD_SECTION_IMAGE_RESOURCES) {
return is;
}
skipBytes(is, imageResourcesLength);
// byte ImageResources[] = readByteArray("ImageResources",
// ImageResourcesLength, is, "Not a Valid PSD File");
final int layerAndMaskDataLength = read4Bytes("LayerAndMaskDataLength", is, "Not a Valid PSD File", getByteOrder());
if (section == PSD_SECTION_LAYER_AND_MASK_DATA) {
return is;
}
skipBytes(is, layerAndMaskDataLength);
// byte LayerAndMaskData[] = readByteArray("LayerAndMaskData",
// LayerAndMaskDataLength, is, "Not a Valid PSD File");
read2Bytes("Compression", is, "Not a Valid PSD File", getByteOrder());
// byte ImageData[] = readByteArray("ImageData",
// LayerAndMaskDataLength, is, "Not a Valid PSD File");
if (section == PSD_SECTION_IMAGE_DATA) {
return is;
}
notFound = true;
} finally {
if (notFound && is != null) {
is.close();
}
}
throw new ImageReadException("getInputStream: Unknown Section: "
+ section);
}
private byte[] getData(final ByteSource byteSource, final int section)
throws ImageReadException, IOException {
try (InputStream is = byteSource.getInputStream()) {
// PsdHeaderInfo header = readHeader(is);
if (section == PSD_SECTION_HEADER) {
return readBytes("Header", is, PSD_HEADER_LENGTH,
"Not a Valid PSD File");
}
skipBytes(is, PSD_HEADER_LENGTH);
final int ColorModeDataLength = read4Bytes("ColorModeDataLength", is,
"Not a Valid PSD File", getByteOrder());
if (section == PSD_SECTION_COLOR_MODE) {
return readBytes("ColorModeData", is, ColorModeDataLength,
"Not a Valid PSD File");
}
skipBytes(is, ColorModeDataLength);
// byte ColorModeData[] = readByteArray("ColorModeData",
// ColorModeDataLength, is, "Not a Valid PSD File");
final int ImageResourcesLength = read4Bytes("ImageResourcesLength", is,
"Not a Valid PSD File", getByteOrder());
if (section == PSD_SECTION_IMAGE_RESOURCES) {
return readBytes("ImageResources", is,
ImageResourcesLength, "Not a Valid PSD File");
}
skipBytes(is, ImageResourcesLength);
// byte ImageResources[] = readByteArray("ImageResources",
// ImageResourcesLength, is, "Not a Valid PSD File");
final int LayerAndMaskDataLength = read4Bytes("LayerAndMaskDataLength",
is, "Not a Valid PSD File", getByteOrder());
if (section == PSD_SECTION_LAYER_AND_MASK_DATA) {
return readBytes("LayerAndMaskData",
is, LayerAndMaskDataLength, "Not a Valid PSD File");
}
skipBytes(is, LayerAndMaskDataLength);
// byte LayerAndMaskData[] = readByteArray("LayerAndMaskData",
// LayerAndMaskDataLength, is, "Not a Valid PSD File");
read2Bytes("Compression", is, "Not a Valid PSD File", getByteOrder());
// byte ImageData[] = readByteArray("ImageData",
// LayerAndMaskDataLength, is, "Not a Valid PSD File");
// if (section == kPSD_SECTION_IMAGE_DATA)
// return readByteArray("LayerAndMaskData", LayerAndMaskDataLength,
// is,
// "Not a Valid PSD File");
}
throw new ImageReadException("getInputStream: Unknown Section: "
+ section);
}
private PsdImageContents readImageContents(final ByteSource byteSource)
throws ImageReadException, IOException {
try (InputStream is = byteSource.getInputStream()) {
return readImageContents(is);
}
}
@Override
public byte[] getICCProfileBytes(final ByteSource byteSource, final Map params)
throws ImageReadException, IOException {
final List blocks = readImageResourceBlocks(byteSource,
new int[] { IMAGE_RESOURCE_ID_ICC_PROFILE, }, 1);
if ((blocks == null) || (blocks.size() < 1)) {
return null;
}
final ImageResourceBlock irb = blocks.get(0);
final byte[] bytes = irb.data;
if ((bytes == null) || (bytes.length < 1)) {
return null;
}
return bytes; // TODO clone?
}
@Override
public Dimension getImageSize(final ByteSource byteSource, final Map params)
throws ImageReadException, IOException {
final PsdHeaderInfo bhi = readHeader(byteSource);
if (bhi == null) {
throw new ImageReadException("PSD: couldn't read header");
}
return new Dimension(bhi.columns, bhi.rows);
}
@Override
public ImageMetadata getMetadata(final ByteSource byteSource, final Map params)
throws ImageReadException, IOException {
return null;
}
private int getChannelsPerMode(final int mode) {
switch (mode) {
case 0: // Bitmap
return 1;
case 1: // Grayscale
return 1;
case 2: // Indexed
return -1;
case 3: // RGB
return 3;
case 4: // CMYK
return 4;
case 7: // Multichannel
return -1;
case 8: // Duotone
return -1;
case 9: // Lab
return 4;
default:
return -1;
}
}
@Override
public ImageInfo getImageInfo(final ByteSource byteSource, final Map params)
throws ImageReadException, IOException {
final PsdImageContents imageContents = readImageContents(byteSource);
// ImageContents imageContents = readImage(byteSource, false);
if (imageContents == null) {
throw new ImageReadException("PSD: Couldn't read blocks");
}
final PsdHeaderInfo header = imageContents.header;
if (header == null) {
throw new ImageReadException("PSD: Couldn't read Header");
}
final int width = header.columns;
final int height = header.rows;
final List comments = new ArrayList<>();
// TODO: comments...
int BitsPerPixel = header.depth * getChannelsPerMode(header.mode);
// System.out.println("header.Depth: " + header.Depth);
// System.out.println("header.Mode: " + header.Mode);
// System.out.println("getChannelsPerMode(header.Mode): " +
// getChannelsPerMode(header.Mode));
if (BitsPerPixel < 0) {
BitsPerPixel = 0;
}
final ImageFormat format = ImageFormats.PSD;
final String formatName = "Photoshop";
final String mimeType = "image/x-photoshop";
// we ought to count images, but don't yet.
final int numberOfImages = -1;
// not accurate ... only reflects first
final boolean progressive = false;
final int physicalWidthDpi = 72;
final float physicalWidthInch = (float) ((double) width / (double) physicalWidthDpi);
final int physicalHeightDpi = 72;
final float physicalHeightInch = (float) ((double) height / (double) physicalHeightDpi);
final String formatDetails = "Psd";
final boolean transparent = false; // TODO: inaccurate.
final boolean usesPalette = header.mode == COLOR_MODE_INDEXED;
final ImageInfo.ColorType colorType = ImageInfo.ColorType.UNKNOWN;
ImageInfo.CompressionAlgorithm compressionAlgorithm;
switch (imageContents.Compression) {
case 0:
compressionAlgorithm = ImageInfo.CompressionAlgorithm.NONE;
break;
case 1:
compressionAlgorithm = ImageInfo.CompressionAlgorithm.PSD;
break;
default:
compressionAlgorithm = ImageInfo.CompressionAlgorithm.UNKNOWN;
}
return new ImageInfo(formatDetails, BitsPerPixel, comments,
format, formatName, height, mimeType, numberOfImages,
physicalHeightDpi, physicalHeightInch, physicalWidthDpi,
physicalWidthInch, width, progressive, transparent,
usesPalette, colorType, compressionAlgorithm);
}
// // TODO not used
// private ImageResourceBlock findImageResourceBlock(
// final List blocks, final int ID) {
// for (int i = 0; i < blocks.size(); i++) {
// final ImageResourceBlock block = blocks.get(i);
//
// if (block.id == ID) {
// return block;
// }
// }
// return null;
// }
@Override
public boolean dumpImageFile(final PrintWriter pw, final ByteSource byteSource)
throws ImageReadException, IOException {
pw.println("gif.dumpImageFile");
final ImageInfo fImageData = getImageInfo(byteSource);
if (fImageData == null) {
return false;
}
fImageData.toString(pw, "");
final PsdImageContents imageContents = readImageContents(byteSource);
imageContents.dump(pw);
imageContents.header.dump(pw);
final List blocks = readImageResourceBlocks(
byteSource,
// fImageContents.ImageResources,
null, -1);
pw.println("blocks.size(): " + blocks.size());
// System.out.println("gif.blocks: " + blocks.blocks.size());
for (int i = 0; i < blocks.size(); i++) {
final ImageResourceBlock block = blocks.get(i);
pw.println("\t" + i + " (" + Integer.toHexString(block.id)
+ ", " + "'"
+ new String(block.nameData, "ISO-8859-1")
+ "' ("
+ block.nameData.length
+ "), "
// + block.getClass().getName()
// + ", "
+ " data: " + block.data.length + " type: '"
+ ImageResourceType.getDescription(block.id) + "' "
+ ")");
}
pw.println("");
return true;
}
@Override
public BufferedImage getBufferedImage(final ByteSource byteSource, final Map params)
throws ImageReadException, IOException {
final PsdImageContents imageContents = readImageContents(byteSource);
// ImageContents imageContents = readImage(byteSource, false);
if (imageContents == null) {
throw new ImageReadException("PSD: Couldn't read blocks");
}
final PsdHeaderInfo header = imageContents.header;
if (header == null) {
throw new ImageReadException("PSD: Couldn't read Header");
}
// ImageDescriptor id = (ImageDescriptor)
// findBlock(fImageContents.blocks,
// kImageSeperator);
// if (id == null)
// throw new ImageReadException("PSD: Couldn't read Image Descriptor");
// GraphicControlExtension gce = (GraphicControlExtension) findBlock(
// fImageContents.blocks, kGraphicControlExtension);
readImageResourceBlocks(byteSource,
// fImageContents.ImageResources,
null, -1);
final int width = header.columns;
final int height = header.rows;
// int height = header.Columns;
// int transfer_type;
// transfer_type = DataBuffer.TYPE_BYTE;
final boolean hasAlpha = false;
final BufferedImage result = getBufferedImageFactory(params).getColorBufferedImage(
width, height, hasAlpha);
DataParser dataParser;
switch (imageContents.header.mode) {
case 0: // bitmap
dataParser = new DataParserBitmap();
break;
case 1:
case 8: // Duotone=8;
dataParser = new DataParserGrayscale();
break;
case 3:
dataParser = new DataParserRgb();
break;
case 4:
dataParser = new DataParserCmyk();
break;
case 9:
dataParser = new DataParserLab();
break;
case COLOR_MODE_INDEXED:
// case 2 : // Indexed=2;
{
final byte[] ColorModeData = getData(byteSource, PSD_SECTION_COLOR_MODE);
// ImageResourceBlock block = findImageResourceBlock(blocks,
// 0x03EB);
// if (block == null)
// throw new ImageReadException(
// "Missing: Indexed Color Image Resource Block");
dataParser = new DataParserIndexed(ColorModeData);
break;
}
case 7: // Multichannel=7;
// fDataParser = new DataParserStub();
// break;
// case 1 :
// fDataReader = new CompressedDataReader();
// break;
default:
throw new ImageReadException("Unknown Mode: "
+ imageContents.header.mode);
}
DataReader fDataReader;
switch (imageContents.Compression) {
case 0:
fDataReader = new UncompressedDataReader(dataParser);
break;
case 1:
fDataReader = new CompressedDataReader(dataParser);
break;
default:
throw new ImageReadException("Unknown Compression: "
+ imageContents.Compression);
}
try (InputStream is = getInputStream(byteSource, PSD_SECTION_IMAGE_DATA)) {
fDataReader.readData(is, result, imageContents, this);
// is.
// ImageContents imageContents = readImageContents(is);
// return imageContents;
}
return result;
}
/**
* Extracts embedded XML metadata as XML string.
*
*
* @param byteSource
* File containing image data.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
@Override
public String getXmpXml(final ByteSource byteSource, final Map params)
throws ImageReadException, IOException {
final PsdImageContents imageContents = readImageContents(byteSource);
if (imageContents == null) {
throw new ImageReadException("PSD: Couldn't read blocks");
}
final PsdHeaderInfo header = imageContents.header;
if (header == null) {
throw new ImageReadException("PSD: Couldn't read Header");
}
final List blocks = readImageResourceBlocks(byteSource,
new int[] { IMAGE_RESOURCE_ID_XMP, }, -1);
if ((blocks == null) || (blocks.size() < 1)) {
return null;
}
final List xmpBlocks = new ArrayList<>();
// if (false) {
// // TODO: for PSD 7 and later, verify "XMP" name.
// for (int i = 0; i < blocks.size(); i++) {
// final ImageResourceBlock block = blocks.get(i);
// if (!block.getName().equals(BLOCK_NAME_XMP)) {
// continue;
// }
// xmpBlocks.add(block);
// }
// } else {
xmpBlocks.addAll(blocks);
// }
if (xmpBlocks.size() < 1) {
return null;
}
if (xmpBlocks.size() > 1) {
throw new ImageReadException(
"PSD contains more than one XMP block.");
}
final ImageResourceBlock block = xmpBlocks.get(0);
try {
// segment data is UTF-8 encoded xml.
return new String(block.data, 0, block.data.length, "utf-8");
} catch (final UnsupportedEncodingException e) {
throw new ImageReadException("Invalid JPEG XMP Segment.", e);
}
}
}
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