94 lines
3.3 KiB
Java
94 lines
3.3 KiB
Java
/*
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* Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.*;
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import java.awt.image.*;
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import java.util.*;
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import javax.swing.*;
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/**
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* @test
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* @key headful
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* @bug 8024895
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* @summary tests if changing extra alpha values are honored for transformed blits
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* @author ceisserer
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*/
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public class EABlitTest extends Frame {
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protected void test() {
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BufferedImage srcImg = createSrcImage();
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Image dstImg = getGraphicsConfiguration().createCompatibleVolatileImage(20, 50);
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//be over-cautious and render twice to avoid BI caching issues
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renderToVI(srcImg, dstImg);
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renderToVI(srcImg, dstImg);
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BufferedImage validationImg = new BufferedImage(20, 50, BufferedImage.TYPE_INT_RGB);
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Graphics2D valG = (Graphics2D) validationImg.getGraphics();
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valG.drawImage(dstImg, 0, 0, null);
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//Loop over all pixel, and count the different pixel values encountered.
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TreeSet<Integer> colorCntSet = new TreeSet<>();
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for (int x=0; x < validationImg.getWidth(); x++) {
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for (int y=0; y < validationImg.getHeight(); y++) {
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int rgb = validationImg.getRGB(x, y);
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colorCntSet.add(rgb);
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}
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}
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//Check if we encountered 3 different color values in total
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if (colorCntSet.size() == 3) {
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System.out.println("Passed!");
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} else {
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throw new RuntimeException("Test FAILED!");
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}
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}
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protected void renderToVI(BufferedImage src, Image dst) {
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Graphics2D g = (Graphics2D) dst.getGraphics();
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g.setColor(Color.WHITE);
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g.fillRect(0, 0, 50, 50);
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g.rotate(0.5f);
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g.setRenderingHint(RenderingHints.KEY_RENDERING,
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RenderingHints.VALUE_RENDER_QUALITY);
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g.setComposite(AlphaComposite.SrcOver.derive(1f));
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g.drawImage(src, 10, 10, null);
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g.setComposite(AlphaComposite.SrcOver.derive(0.5f));
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g.drawImage(src, 20, 20, null);
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}
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protected BufferedImage createSrcImage() {
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BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);
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Graphics2D g = (Graphics2D) bi.getGraphics();
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g.setColor(Color.YELLOW);
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g.fillRect(0, 0, 10, 10);
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return bi;
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}
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public static void main(String[] args) {
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new EABlitTest().test();
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}
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}
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