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* Copyright (c) 2005-2010 Substance Kirill Grouchnikov. All Rights Reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* o Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* o Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* o Neither the name of Substance Kirill Grouchnikov nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package org.pushingpixels.substance.internal.utils.filters;
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import java.awt.image.BufferedImage;
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* @author Kirill Grouchnikov
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public class TranslucentFilter extends AbstractFilter {
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public TranslucentFilter(double alpha) {
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public BufferedImage filter(BufferedImage src, BufferedImage dst) {
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dst = createCompatibleDestImage(src, null);
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int width = src.getWidth();
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int height = src.getHeight();
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int[] pixels = new int[width * height];
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getPixels(src, 0, 0, width, height, pixels);
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translucentColor(pixels);
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setPixels(dst, 0, 0, width, height, pixels);
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private void translucentColor(int[] pixels) {
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for (int i = 0; i < pixels.length; i++) {
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int transp = (int) (alpha * ((argb >>> 24) & 0xFF));
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int r = (argb >>> 16) & 0xFF;
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int g = (argb >>> 8) & 0xFF;
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int b = (argb >>> 0) & 0xFF;
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pixels[i] = (transp << 24) | (r << 16) | (g << 8) | b;