1 /*
   2  * Copyright (c) 2005, 2008, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4832224 6322584 6328478 6328481 6322580 6588884 6587863
  27  * @summary Verifies that the pixelization of simple primitives (drawLine,
  28  * fillRect, drawRect, fill, draw) with the OGL pipeline enabled
  29  * matches that produced by our software loops.  (The primitives tested here
  30  * are simple enough that the OGL results should match the software results
  31  * exactly.)  There is some overlap with PolyVertTest as we test both
  32  * solid and XOR rendering here, but this testcase is a bit simpler and
  33  * more appropriate for quick OGL testing.  This test is also useful for
  34  * comparing quality between our X11/GDI and software pipelines.
  35  * @run main/othervm SimplePrimQuality
  36  * @run main/othervm -Dsun.java2d.opengl=True SimplePrimQuality
  37  * @author campbelc
  38  */
  39 
  40 import java.awt.*;
  41 import java.awt.geom.*;
  42 import java.awt.image.*;
  43 import java.io.File;
  44 import java.io.IOException;
  45 import javax.imageio.ImageIO;
  46 
  47 public class SimplePrimQuality extends Canvas {
  48 
  49     private static final int SIZE = 300;
  50     private static boolean done;
  51     private static boolean testVI;
  52     private static volatile BufferedImage capture;
  53     private static void doCapture(Component test) {
  54         // Grab the screen region
  55         try {
  56             Robot robot = new Robot();
  57             Point pt1 = test.getLocationOnScreen();
  58             Rectangle rect =
  59                 new Rectangle(pt1.x, pt1.y, test.getWidth(), test.getHeight());
  60             capture = robot.createScreenCapture(rect);
  61         } catch (Exception e) {
  62             e.printStackTrace();
  63         }
  64     }
  65 
  66     private static final int[][] rpts = {
  67         {2, 0, 0, 0},
  68         {12, 0, 1, 0},
  69         {22, 0, 0, 1},
  70         {32, 0, 1, 1},
  71         {42, 0, 2, 1},
  72         {52, 0, 1, 2},
  73         {62, 0, 2, 2},
  74         {72, 0, 5, 5},
  75         {82, 0, 10, 10},
  76         {97, 0, 15, 15},
  77     };
  78 
  79     private void drawLine(Graphics2D g, int x, int y, int dx, int dy) {
  80         g.drawLine(x, y, x + dx, y + dy);
  81     }
  82 
  83     private void drawLines(Graphics2D g, int s) {
  84         drawLine(g, 2, 0, 0, 0);
  85         drawLine(g, 12, 0, 0, s);
  86         drawLine(g, 22, 0, s, 0);
  87         drawLine(g, 32, 0, s, s);
  88         drawLine(g, 42, 0, 0, -s);
  89         drawLine(g, 52, 0, -s, 0);
  90         drawLine(g, 62, 0, -s, -s);
  91         drawLine(g, 72, 0, -s, s);
  92         drawLine(g, 82, 0, s, -s);
  93     }
  94 
  95     private void fillRects(Graphics2D g) {
  96         for (int i = 0; i < rpts.length; i++) {
  97             g.fillRect(rpts[i][0], rpts[i][1], rpts[i][2], rpts[i][3]);
  98         }
  99     }
 100 
 101     private void drawRects(Graphics2D g) {
 102         for (int i = 0; i < rpts.length; i++) {
 103             g.drawRect(rpts[i][0], rpts[i][1], rpts[i][2], rpts[i][3]);
 104         }
 105     }
 106 
 107     private void fillOvals(Graphics2D g) {
 108         for (int i = 0; i < rpts.length; i++) {
 109             // use fill() instead of fillOval(), since the former is more
 110             // likely to be consistent with our software loops when the
 111             // OGL pipeline cannot be enabled
 112             g.fill(new Ellipse2D.Float(rpts[i][0], rpts[i][1],
 113                                        rpts[i][2], rpts[i][3]));
 114         }
 115     }
 116 
 117     private void drawOvals(Graphics2D g) {
 118         for (int i = 0; i < rpts.length; i++) {
 119             // use draw() instead of drawOval(), since the former is more
 120             // likely to be consistent with our software loops when the
 121             // OGL pipeline cannot be enabled
 122             g.draw(new Ellipse2D.Float(rpts[i][0], rpts[i][1],
 123                                        rpts[i][2], rpts[i][3]));
 124         }
 125     }
 126 
 127     private void renderShapes(Graphics2D g) {
 128         // drawLine tests...
 129         g.translate(0, 5);
 130         drawLines(g, 1);
 131         g.translate(0, 10);
 132         drawLines(g, 4);
 133 
 134         // fillRect tests...
 135         g.translate(0, 10);
 136         fillRects(g);
 137 
 138         // drawRect tests...
 139         g.translate(0, 20);
 140         drawRects(g);
 141 
 142         // fillOval tests...
 143         g.translate(0, 20);
 144         fillOvals(g);
 145 
 146         // drawOval tests...
 147         g.translate(0, 20);
 148         drawOvals(g);
 149     }
 150 
 151     private void renderTest(Graphics2D g, int w, int h) {
 152         // on the left side, render the shapes in solid mode
 153         g.setColor(Color.black);
 154         g.fillRect(0, 0, w, h);
 155         g.setColor(Color.green);
 156         renderShapes(g);
 157 
 158         // on the right side, render the shapes in XOR mode
 159         g.setTransform(AffineTransform.getTranslateInstance(SIZE/2, 0));
 160         g.setXORMode(Color.black);
 161         renderShapes(g);
 162         g.setTransform(AffineTransform.getTranslateInstance(SIZE/2, 0));
 163         renderShapes(g);
 164     }
 165 
 166     public void paint(Graphics g) {
 167 
 168         Graphics2D g2d = (Graphics2D)g;
 169         renderTest(g2d, SIZE, SIZE);
 170 
 171         Toolkit.getDefaultToolkit().sync();
 172 
 173         synchronized (this) {
 174             if (!done) {
 175                 doCapture(this);
 176                 done = true;
 177             }
 178             notifyAll();
 179         }
 180     }
 181 
 182     public Dimension getPreferredSize() {
 183         return new Dimension(SIZE, SIZE);
 184     }
 185 
 186     public static void main(String[] args) {
 187         boolean show = false;
 188         for (String arg : args) {
 189             if (arg.equals("-testvi")) {
 190                 System.out.println("Testing VolatileImage, not screen");
 191                 testVI = true;
 192             } else if (arg.equals("-show")) {
 193                 show = true;
 194             }
 195         }
 196 
 197         SimplePrimQuality test = new SimplePrimQuality();
 198         Frame frame = new Frame();
 199         frame.add(test);
 200         frame.pack();
 201         frame.setVisible(true);
 202 
 203         // Wait until the component's been painted
 204         synchronized (test) {
 205             while (!done) {
 206                 try {
 207                     test.wait();
 208                 } catch (InterruptedException e) {
 209                     throw new RuntimeException("Failed: Interrupted");
 210                 }
 211             }
 212         }
 213 
 214         // REMIND: We will allow this test to pass silently on Windows
 215         // (when OGL is not enabled) until we fix the GDI pipeline so that
 216         // its stroked/filled GeneralPaths match our software loops (see
 217         // 6322554).  This check should be removed when 6322554 is fixed.
 218         GraphicsConfiguration gc = frame.getGraphicsConfiguration();
 219         if (gc.getClass().getSimpleName().startsWith("Win")) {
 220             System.out.println("GDI pipeline detected: " +
 221                                "test considered PASSED");
 222             frame.dispose();
 223             return;
 224         }
 225 
 226 
 227         if (testVI) {
 228             // render to a VI instead of the screen
 229             VolatileImage vi = frame.createVolatileImage(SIZE, SIZE);
 230             do {
 231                 vi.validate(frame.getGraphicsConfiguration());
 232                 Graphics2D g1 = vi.createGraphics();
 233                 test.renderTest(g1, SIZE, SIZE);
 234                 g1.dispose();
 235                 capture = vi.getSnapshot();
 236             } while (vi.contentsLost());
 237             frame.dispose();
 238         }
 239 
 240         if (!show) {
 241             frame.dispose();
 242         }
 243         if (capture == null) {
 244             throw new RuntimeException("Error capturing the rendering");
 245         }
 246 
 247         // Create reference image
 248         int w = SIZE, h = SIZE;
 249         BufferedImage refimg = new BufferedImage(w, h,
 250                                                  BufferedImage.TYPE_INT_RGB);
 251         Graphics2D g = refimg.createGraphics();
 252         test.renderTest(g, w, h);
 253         g.dispose();
 254 
 255         // Test pixels
 256         for (int y = 0; y < h; y++) {
 257             for (int x = 0; x < w; x++) {
 258                 int actual = capture.getRGB(x, y);
 259                 int expected = refimg.getRGB(x, y);
 260                 if (actual != expected) {
 261                     String expectedName = "SimplePrimQuality_expected.png";
 262                     String actualName = "SimplePrimQuality_actual.png";
 263                     try {
 264                         System.out.println("Writing expected image to: "+
 265                                            expectedName);
 266                         ImageIO.write(refimg, "png", new File(expectedName));
 267                         System.out.println("Writing actual image   to: "+
 268                                            actualName);
 269                         ImageIO.write(capture, "png", new File(actualName));
 270                     } catch (IOException ex) {}
 271                     throw new RuntimeException("Test failed at x="+x+" y="+y+
 272                                                " (expected="+
 273                                                Integer.toHexString(expected) +
 274                                                " actual="+
 275                                                Integer.toHexString(actual) +
 276                                                ")");
 277                 }
 278             }
 279         }
 280     }
 281 }