| /* |
| * 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.datareaders; |
| |
| import java.awt.image.BufferedImage; |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.imaging.ImageReadException; |
| import org.apache.commons.imaging.common.BinaryFileParser; |
| import org.apache.commons.imaging.common.PackBits; |
| import org.apache.commons.imaging.common.mylzw.BitsToByteInputStream; |
| import org.apache.commons.imaging.common.mylzw.MyBitInputStream; |
| import org.apache.commons.imaging.formats.psd.ImageContents; |
| import org.apache.commons.imaging.formats.psd.PsdHeaderInfo; |
| import org.apache.commons.imaging.formats.psd.dataparsers.DataParser; |
| |
| public class CompressedDataReader extends DataReader |
| { |
| |
| public CompressedDataReader(DataParser fDataParser) |
| { |
| super(fDataParser); |
| } |
| |
| @Override |
| public void readData(InputStream is, BufferedImage bi, |
| ImageContents imageContents, BinaryFileParser bfp) |
| throws ImageReadException, IOException |
| { |
| PsdHeaderInfo header = imageContents.header; |
| int width = header.Columns; |
| int height = header.Rows; |
| |
| // this.setDebug(true); |
| int scanline_count = height * header.Channels; |
| int scanline_bytecounts[] = new int[scanline_count]; |
| for (int i = 0; i < scanline_count; i++) |
| scanline_bytecounts[i] = bfp.read2Bytes("scanline_bytecount[" + i |
| + "]", is, "PSD: bad Image Data"); |
| bfp.setDebug(false); |
| // System.out.println("fImageContents.Compression: " |
| // + imageContents.Compression); |
| |
| int depth = header.Depth; |
| |
| int channel_count = dataParser.getBasicChannelsCount(); |
| int data[][][] = new int[channel_count][height][]; |
| // channels[0] = |
| for (int channel = 0; channel < channel_count; channel++) |
| for (int y = 0; y < height; y++) |
| { |
| int index = channel * height + y; |
| byte packed[] = bfp.readByteArray("scanline", |
| scanline_bytecounts[index], is, |
| "PSD: Missing Image Data"); |
| |
| byte unpacked[] = new PackBits().decompress(packed, width); |
| InputStream bais = new ByteArrayInputStream(unpacked); |
| MyBitInputStream mbis = new MyBitInputStream(bais, |
| BYTE_ORDER_MSB); |
| BitsToByteInputStream bbis = new BitsToByteInputStream(mbis, 8); // we want all samples to be bytes |
| int scanline[] = bbis.readBitsArray(depth, width); |
| data[channel][y] = scanline; |
| |
| } |
| |
| dataParser.parseData(data, bi, imageContents); |
| |
| } |
| } |