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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 1997-2017 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
*
* ---------------
* DeviceNColorSpace.java
* ---------------
*/
package org.jpedal.color;
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.awt.image.DataBufferByte;
import java.awt.image.Raster;
/**
* handle Device ColorSpace
*/
public class DeviceNColorSpace extends SeparationColorSpace {
private static final long serialVersionUID = -1372268945371555187L;
private final int[] lookup = new int[256];
public DeviceNColorSpace(final int componentCount, final ColorMapping colorMapper,final float[] domain, final GenericColorSpace altCS){
setType(ColorSpaces.DeviceN);
this.componentCount=componentCount;
this.colorMapper=colorMapper;
this.domain=domain;
this.altCS=altCS;
}
/** set color (translate and set in alt colorspace) */
@Override
public void setColor(final String[] operand, final int opCount) {
final float[] values = new float[opCount];
for(int j=0;j> 16) & 255);
final int g = ((rawValue >> 8) & 255);
final int b = ((rawValue) & 255);
altCS.currentColor = new PdfColor(r, g, b);
} else {
final float[] operand = colorMapper.getOperandFloat(raw);
altCS.setColor(operand, operand.length);
lookup[key] = altCS.getColor().getRGB();
}
} else {
long key = 0;
for (final float n : raw) {
key = key << 8 | (int) (n * 255);
}
final Long lv = lim.get(key);
if (lv != null) {
final int rawValue = (int) (long) lv;
final int r = ((rawValue >> 16) & 255);
final int g = ((rawValue >> 8) & 255);
final int b = ((rawValue) & 255);
altCS.currentColor = new PdfColor(r, g, b);
} else {
final float[] operand = colorMapper.getOperandFloat(raw);
altCS.setColor(operand, operand.length);
lim.put(key, altCS.getColor().getRGB());
}
}
}
/**
* convert separation stream to RGB and return as an image
*/
@Override
public BufferedImage dataToRGB(final byte[] data, final int w, final int h) {
return createImage(w, h, data);
}
/**
* convert data stream to srgb image
*/
@Override
public BufferedImage JPEGToRGBImage(final byte[] data, final int ww, final int hh, final int pX, final int pY) {
BufferedImage image=null;
Raster ras= JPEGDecoder.getRasterFromJPEG(data, "JPEG");
if(ras!=null){
ras=cleanupRaster(ras,pX,pY, componentCount);
final int w=ras.getWidth();
final int h=ras.getHeight();
final DataBufferByte rgb = (DataBufferByte) ras.getDataBuffer();
//convert the image
image=createImage(w, h, rgb.getData());
}
return image;
}
/**
* turn raw data into an image
*/
@Override
BufferedImage createImage(final int w, final int h, final byte[] rawData) {
final BufferedImage image;
final byte[] rgb=new byte[w*h*3];
final int bytesCount=rawData.length;
//convert data to RGB format
final int byteCount= rawData.length/componentCount;
final float[] values=new float[componentCount];
int j=0,j2=0;
for(int i=0;i=bytesCount) {
break;
}
for(int comp=0;comp>16) & 0xFF);
rgb[j2+1]=(byte) ((foreground>>8) & 0xFF);
rgb[j2+2]=(byte) ((foreground) & 0xFF);
j2 += 3;
}
//create the RGB image
final int[] bands = {0,1,2};
image =new BufferedImage(w,h,BufferedImage.TYPE_INT_RGB);
final DataBuffer dataBuf=new DataBufferByte(rgb, rgb.length);
final Raster raster =Raster.createInterleavedRaster(dataBuf,w,h,w*3,3,bands,null);
image.setData(raster);
return image;
}
public byte[] getRGBBytes(final byte[] rawData,final int w, final int h) {
final byte[] rgb=new byte[w*h*3];
final int bytesCount=rawData.length;
final int byteCount= rawData.length/componentCount;
final float[] values=new float[componentCount];
int j=0,j2=0;
for(int i=0;i=bytesCount) {
break;
}
for(int comp=0;comp>16) & 0xFF);
rgb[j2+1]=(byte) ((foreground>>8) & 0xFF);
rgb[j2+2]=(byte) ((foreground) & 0xFF);
j2 += 3;
}
return rgb;
}
}