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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2015 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* JPeg2000ImageDecoder.java
* ---------------
*/
package org.jpedal.parser.image;
import java.awt.image.*;
import java.io.ByteArrayInputStream;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
import org.jpedal.color.GenericColorSpace;
import org.jpedal.exception.PdfException;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.parser.image.data.ImageData;
import org.jpedal.utils.LogWriter;
/**
*
* @author markee
*/
public class JPeg2000ImageDecoder {
public static BufferedImage decode(final String name, int w, int h, GenericColorSpace decodeColorData, byte[] data, final float[] decodeArray, final ImageData imageData, int d) throws RuntimeException, PdfException {
BufferedImage image;
//needs imageio library
if(LogWriter.isOutput()) {
LogWriter.writeLog("JPeg 2000 Image " + name + ' ' + w + "W * " + h + 'H');
}
/**
* try {
* java.io.FileOutputStream a =new java.io.FileOutputStream("/Users/markee/Desktop/"+ name + ".jpg");
*
* a.write(data);
* a.flush();
* a.close();
*
* } catch (Exception e) {
* LogWriter.writeLog("Unable to save jpeg " + name);
*
* } /**/
image = decodeColorData.JPEG2000ToRGBImage(data,w,h,decodeArray,imageData.getpX(),imageData.getpY(),d);
return image;
}
//
//OS version
public static byte[] getBytesFromJPEG2000(final byte[] data, GenericColorSpace decodeColorData,final PdfObject XObject) {
Raster ras= getRasterFromJPEG2000(data);
return ((DataBufferByte)ras.getDataBuffer()).getData();
}
/**/
//
static Raster getRasterFromJPEG2000(final byte[] data) {
final ByteArrayInputStream in;
ImageReader iir=null;
final ImageInputStream iin;
Raster ras=null;
try {
//read the image data
in = new ByteArrayInputStream(data);
//suggestion from Carol
final Iterator iterator = ImageIO.getImageReadersByFormatName("JPEG2000");
while (iterator.hasNext()){
final Object o = iterator.next();
iir = (ImageReader) o;
if (iir.canReadRaster()) {
break;
}
}
ImageIO.setUseCache(false);
iin = ImageIO.createImageInputStream((in));
iir.setInput(iin, true);
ras=iir.read(0).getRaster();
in.close();
iir.dispose();
iin.close();
}catch(final Exception ee){
if(LogWriter.isOutput()) {
LogWriter.writeLog("Problem closing " + ee);
}
}
return ras;
}
}