| /* |
| * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @key headful |
| * @bug 7188093 8000176 |
| * @summary Tests each of the 3 possible methods for rendering an upscaled |
| * image via rendering hints for default, xrender and opengl pipelines. |
| * |
| * @author Vadim.Pakhnushev@oracle.com |
| * @run main/othervm -Dsun.java2d.xrender=false InterpolationQualityTest |
| * @run main/othervm -Dsun.java2d.xrender=True InterpolationQualityTest |
| * @run main/othervm -Dsun.java2d.opengl=True InterpolationQualityTest |
| * @run main/othervm -Dsun.java2d.d3d=false InterpolationQualityTest |
| * @run main/othervm -Dsun.java2d.d3d=True InterpolationQualityTest |
| */ |
| |
| import java.awt.*; |
| import java.awt.image.*; |
| import java.io.File; |
| import java.io.IOException; |
| import javax.imageio.ImageIO; |
| |
| public class InterpolationQualityTest { |
| |
| private static final int testSize = 4, scaleFactor = 20, tolerance = 3; |
| private static final int sw = testSize * scaleFactor; |
| private static final int sh = testSize * scaleFactor; |
| |
| private Image testImage; |
| private VolatileImage vImg; |
| |
| public InterpolationQualityTest() { |
| testImage = createTestImage(); |
| } |
| |
| private Image createTestImage() { |
| BufferedImage bi = new BufferedImage(testSize, testSize, BufferedImage.TYPE_INT_ARGB); |
| Graphics2D g = bi.createGraphics(); |
| g.setColor(Color.BLACK); |
| g.fillRect(0, 0, testSize, testSize); |
| for (int i = 0; i < testSize; i++) { |
| bi.setRGB(i, i, Color.WHITE.getRGB()); |
| } |
| return bi; |
| } |
| |
| private BufferedImage createReferenceImage(Object hint) { |
| BufferedImage bi = new BufferedImage(sw, sh, BufferedImage.TYPE_INT_ARGB); |
| Graphics2D g2d = bi.createGraphics(); |
| drawImage(g2d, hint); |
| return bi; |
| } |
| |
| private void drawImage(Graphics2D g2d, Object hint) { |
| g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, hint); |
| g2d.drawImage(testImage, 0, 0, sw, sh, null); |
| } |
| |
| private GraphicsConfiguration getDefaultGC() { |
| return GraphicsEnvironment.getLocalGraphicsEnvironment(). |
| getDefaultScreenDevice().getDefaultConfiguration(); |
| } |
| |
| private void createVImg() { |
| vImg = getDefaultGC().createCompatibleVolatileImage(sw, sh); |
| } |
| |
| private void renderOffscreen(Object hint) { |
| Graphics2D g = vImg.createGraphics(); |
| drawImage(g, hint); |
| g.dispose(); |
| } |
| |
| private BufferedImage renderImage(Object hint) { |
| BufferedImage snapshot; |
| createVImg(); |
| renderOffscreen(hint); |
| |
| do { |
| int status = vImg.validate(getDefaultGC()); |
| if (status != VolatileImage.IMAGE_OK) { |
| if (status == VolatileImage.IMAGE_INCOMPATIBLE) { |
| createVImg(); |
| } |
| renderOffscreen(hint); |
| } |
| snapshot = vImg.getSnapshot(); |
| } while (vImg.contentsLost()); |
| vImg.flush(); |
| return snapshot; |
| } |
| |
| private boolean compareComponent(int comp1, int comp2) { |
| return Math.abs(comp1 - comp2) <= tolerance; |
| } |
| |
| private boolean compareRGB(int rgb1, int rgb2) { |
| Color col1 = new Color(rgb1); |
| Color col2 = new Color(rgb2); |
| return compareComponent(col1.getRed(), col2.getRed()) && |
| compareComponent(col1.getBlue(), col2.getBlue()) && |
| compareComponent(col1.getGreen(), col2.getGreen()) && |
| compareComponent(col1.getAlpha(), col2.getAlpha()); |
| } |
| |
| private boolean compareImages(BufferedImage img, BufferedImage ref, String imgName) { |
| for (int y = 0; y < ref.getHeight(); y++) { |
| for (int x = 0; x < ref.getWidth(); x++) { |
| if (!compareRGB(ref.getRGB(x, y), img.getRGB(x, y))) { |
| System.out.println(imgName + ".getRGB(" + x + ", " + y + ") = " |
| + new Color(img.getRGB(x, y)) + " != " |
| + new Color(ref.getRGB(x, y))); |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| private boolean test(Object hint) { |
| BufferedImage refImage = createReferenceImage(hint); |
| BufferedImage resImage = renderImage(hint); |
| |
| boolean passed = compareImages(resImage, refImage, "resImage"); |
| System.out.println(getHintName(hint) + (passed ? " passed." : " failed.")); |
| if (!passed) { |
| dumpImage(refImage, "out_" + getHintName(hint) + "_ref.png"); |
| dumpImage(resImage, "out_" + getHintName(hint) + ".png"); |
| } |
| return passed; |
| } |
| |
| public void test() { |
| boolean passed = true; |
| passed &= test(RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR); |
| passed &= test(RenderingHints.VALUE_INTERPOLATION_BILINEAR); |
| passed &= test(RenderingHints.VALUE_INTERPOLATION_BICUBIC); |
| if (passed) { |
| System.out.println("Test PASSED."); |
| } else { |
| throw new RuntimeException("Test FAILED."); |
| } |
| } |
| |
| private String getHintName(Object hint) { |
| if (hint == RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR) { |
| return "nearest"; |
| } |
| else if (hint == RenderingHints.VALUE_INTERPOLATION_BILINEAR) { |
| return "bilinear"; |
| } |
| else if (hint == RenderingHints.VALUE_INTERPOLATION_BICUBIC) { |
| return "bicubic"; |
| } |
| else { |
| return "null"; |
| } |
| } |
| |
| private void dumpImage(BufferedImage bi, String name) { |
| try { |
| ImageIO.write(bi, "PNG", new File(name)); |
| } catch (IOException ex) { |
| } |
| } |
| |
| public static void main(String[] argv) { |
| InterpolationQualityTest test = new InterpolationQualityTest(); |
| test.test(); |
| } |
| } |