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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
*
* ---------------
* TempStoreImage.java
* ---------------
*/
package org.jpedal.io.security;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import java.awt.image.DataBufferInt;
/**
*
* @author suda
*/
public class TempStoreImage {
public static byte[] getBytes(BufferedImage img) {
byte[] data = new byte[img.getWidth() * img.getHeight() * 4 + 8];
byte[] w = numToBytes(img.getWidth());
System.arraycopy(w, 0, data, 0, 4);
byte[] h = numToBytes(img.getHeight());
System.arraycopy(h, 0, data, 4, 4);
int p = 8;
int pp = 0;
int[] pixels;
byte[] pixBytes;
int v;
int xx = img.getRaster().getSampleModelTranslateX();
int yy = img.getRaster().getSampleModelTranslateY();
if(xx != 0 || yy!= 0){
for (int y = 0; y < img.getHeight(); y++) {
for (int x = 0; x < img.getWidth(); x++) {
v = img.getRGB(x, y);
data[p++] = (byte) ((v >> 24) & 0xff);
data[p++] = (byte) ((v >> 16) & 0xff);
data[p++] = (byte) ((v >> 8) & 0xff);
data[p++] = (byte) (v & 0xff);
}
}
return data;
}
switch (img.getType()) {
case BufferedImage.TYPE_INT_RGB:
pixels = ((DataBufferInt) img.getRaster().getDataBuffer()).getData();
for (int i = 0, ii = img.getWidth() * img.getHeight(); i < ii; i++) {
v = pixels[i];
data[p++] = -1;
data[p++] = (byte) ((v >> 16) & 0xff);
data[p++] = (byte) ((v >> 8) & 0xff);
data[p++] = (byte) (v & 0xff);
}
break;
case BufferedImage.TYPE_INT_ARGB:
case BufferedImage.TYPE_INT_ARGB_PRE:
pixels = ((DataBufferInt) img.getRaster().getDataBuffer()).getData();
for (int i = 0, ii = img.getWidth() * img.getHeight(); i < ii; i++) {
v = pixels[i];
data[p++] = (byte) ((v >> 24) & 0xff);
data[p++] = (byte) ((v >> 16) & 0xff);
data[p++] = (byte) ((v >> 8) & 0xff);
data[p++] = (byte) (v & 0xff);
}
break;
case BufferedImage.TYPE_INT_BGR:
pixels = ((DataBufferInt) img.getRaster().getDataBuffer()).getData();
for (int i = 0, ii = img.getWidth() * img.getHeight(); i < ii; i++) {
v = pixels[i];
data[p++] = -1;
data[p++] = (byte) (v & 0xff);
data[p++] = (byte) ((v >> 8) & 0xff);
data[p++] = (byte) ((v >> 16) & 0xff);
}
break;
case BufferedImage.TYPE_3BYTE_BGR:
pixBytes = ((DataBufferByte) img.getRaster().getDataBuffer()).getData();
for (int i = 0, ii = img.getWidth() * img.getHeight(); i < ii; i++) {
data[p++] = -1;
data[p++] = pixBytes[pp+2];
data[p++] = pixBytes[pp+1];
data[p++] = pixBytes[pp];
pp += 3;
}
break;
case BufferedImage.TYPE_4BYTE_ABGR:
case BufferedImage.TYPE_4BYTE_ABGR_PRE:
pixBytes = ((DataBufferByte) img.getRaster().getDataBuffer()).getData();
for (int i = 0, ii = img.getWidth() * img.getHeight(); i < ii; i++) {
data[p++] = pixBytes[pp];
data[p++] = pixBytes[pp+3];
data[p++] = pixBytes[pp+2];
data[p++] = pixBytes[pp+1];
pp += 4;
}
break;
default:
BufferedImage img2 = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TYPE_INT_ARGB);
img2.getGraphics().drawImage(img, 0, 0, null);
pixels = ((DataBufferInt) img2.getRaster().getDataBuffer()).getData();
for (int i = 0, ii = img.getWidth() * img.getHeight(); i < ii; i++) {
v = pixels[i];
data[p++] = (byte) ((v >> 24) & 0xff);
data[p++] = (byte) ((v >> 16) & 0xff);
data[p++] = (byte) ((v >> 8) & 0xff);
data[p++] = (byte) (v & 0xff);
}
}
return data;
}
public static BufferedImage getImage(byte[] data) {
int w = ((data[0] & 0xff) << 24) | ((data[1] & 0xff) << 16) | ((data[2] & 0xff) << 8) | (data[3] & 0xff);
int h = ((data[4] & 0xff) << 24) | ((data[5] & 0xff) << 16) | ((data[6] & 0xff) << 8) | (data[7] & 0xff);
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
int[] pixels = ((DataBufferInt) img.getRaster().getDataBuffer()).getData();
int p = 0;
int pp = 8;
for (int i = 0, ii = w * h; i < ii; i++) {
pixels[p++] = (data[pp++] & 0xff) << 24 | (data[pp++] & 0xff) << 16 | (data[pp++] & 0xff) << 8 | (data[pp++] & 0xff);
}
return img;
}
private static byte[] numToBytes(int num) {
return new byte[]{(byte) (num >> 24), (byte) ((num >> 16) & 0xff), (byte) ((num >> 8) & 0xff), (byte) (num & 0xff)};
}
}
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