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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
*
* ---------------
* SMask.java
* ---------------
*/
package org.jpedal.parser.image.mask;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferInt;
import org.jpedal.io.ColorSpaceConvertor;
/**
*
*/
public class SMask {
public static BufferedImage applyLuminosityMask(BufferedImage image, BufferedImage smask, final int [] tr, final boolean hasBC, final int bc){
if(smask==null){
return image;
}
if(smask.getType() != BufferedImage.TYPE_INT_ARGB){
smask = ColorSpaceConvertor.convertToARGB(smask);
}
if(image.getType() != BufferedImage.TYPE_INT_ARGB){
image = ColorSpaceConvertor.convertToARGB(image);
}
final int iw = image.getWidth();
final int ih = image.getHeight();
final int imageDim = iw * ih;
final int sw = smask.getWidth();
final int sh = smask.getHeight();
final int smaskDim = sw * sh;
if(imageDim > 16) & 0xff;
final int g0 = (bc >> 8) & 0xff;
final int b0 = bc & 0xff;
for (int i = 0; i < imagePixels.length; i++) {
mp = maskPixels[i];
a = mp >>> 24;
r = (mp >> 16) & 0xff;
g = (mp >> 8) & 0xff;
b = mp & 0xff;
if (hasBC) {
if (a == 0) {
r = r0;
g = g0;
b = b0;
} else if (a < 255) {
final int a_ = 255 - a;
r = (r * a + r0 * a_) >> 8;
g = (g * a + g0 * a_) >> 8;
b = (b * a + b0 * a_) >> 8;
}
}
y = (r * 77) + (g * 152) + (b * 28);
ip = imagePixels[i];
resA = (ip >> 24) & 0xff;
resA = tr != null ? (resA * tr[y >> 8]) >> 8 : (resA * y) >> 16;
imagePixels[i] = (resA << 24) | (ip & 0xffffff);
}
return image;
}
public static BufferedImage applyAlphaMask(BufferedImage image, BufferedImage smask){
if(smask==null){
return image;
}
if(smask.getType() != BufferedImage.TYPE_INT_ARGB){
smask = ColorSpaceConvertor.convertToARGB(smask);
}
if(image.getType() != BufferedImage.TYPE_INT_ARGB){
image = ColorSpaceConvertor.convertToARGB(image);
}
final int iw = image.getWidth();
final int ih = image.getHeight();
final int imageDim = iw * ih;
final int sw = smask.getWidth();
final int sh = smask.getHeight();
final int smaskDim = sw * sh;
if(imageDim > 24) & 0xff;
ma = (mp >> 24) & 0xff;
a = (int) (ia * ma * sc);
imagePixels[i] = (a<<24)|(ip & 0xffffff);
}
return image;
}
private static BufferedImage scaleImage(final BufferedImage src, final int w, final int h, final int imageType){
final BufferedImage dimg = new BufferedImage(w, h, imageType);
final Graphics2D g = dimg.createGraphics();
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(src, 0, 0, w, h, null);
g.dispose();
return dimg;
}
}