1 /*
   2  * Copyright (c) 2015, 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 import java.awt.BasicStroke;
  25 import java.awt.Color;
  26 import java.awt.Graphics2D;
  27 import java.awt.RenderingHints;
  28 import java.awt.geom.Path2D;
  29 import static java.awt.geom.Path2D.WIND_NON_ZERO;
  30 import java.awt.image.BufferedImage;
  31 import java.io.File;
  32 import java.io.IOException;
  33 import javax.imageio.ImageIO;
  34 import sun.java2d.pipe.RenderingEngine;
  35 
  36 /**
  37  * Simple crash rendering test using huge GeneralPaths with marlin renderer
  38  *
  39  * run it with large heap (2g):
  40  * java -Dsun.java2d.renderer=sun.java2d.marlin.MarlinRenderingEngine marlin.CrashTest
  41  *
  42  * @author bourgesl
  43  */
  44 public class CrashTest {
  45 
  46     static final boolean SAVE_IMAGE = false;
  47     static boolean USE_ROUND_CAPS_AND_JOINS = true;
  48 
  49     public static void main(String[] args) {
  50         // try insane image sizes:
  51 
  52         // subpixel coords may overflow:
  53 //        testHugeImage((Integer.MAX_VALUE >> 3) + 1, 6);
  54         // larger than 23 bits: (RLE)
  55         testHugeImage(8388608 + 1, 10);
  56 
  57         test(0.1f, false, 0);
  58         test(0.1f, true, 7f);
  59 
  60         // Exceed 2Gb OffHeap buffer for edges:
  61         try {
  62             USE_ROUND_CAPS_AND_JOINS = true;
  63             test(0.1f, true, 0.1f);
  64             System.out.println("Exception MISSING.");
  65         }
  66         catch (Throwable th) {
  67             if (th instanceof ArrayIndexOutOfBoundsException) {
  68                 System.out.println("ArrayIndexOutOfBoundsException expected.");
  69             } else {
  70                 System.out.println("Exception occured:");
  71                 th.printStackTrace();
  72             }
  73         }
  74 
  75     }
  76 
  77     private static void test(final float lineStroke,
  78                              final boolean useDashes,
  79                              final float dashMinLen)
  80     throws ArrayIndexOutOfBoundsException
  81     {
  82         System.out.println("---\n" + "test: "
  83             + "lineStroke=" + lineStroke
  84             + ", useDashes=" + useDashes
  85             +", dashMinLen=" + dashMinLen
  86         );
  87 
  88         final String renderer = RenderingEngine.getInstance().getClass().getSimpleName();
  89         System.out.println("Testing renderer = " + renderer);
  90 
  91         final BasicStroke stroke = createStroke(lineStroke, useDashes, dashMinLen);
  92 
  93         // TODO: test Dasher.firstSegmentsBuffer resizing ?
  94 // array.dasher.firstSegmentsBuffer.d_float[2] sum: 6 avg: 3.0 [3 | 3]
  95         /*
  96          // Marlin growable arrays:
  97          = new StatLong("array.dasher.firstSegmentsBuffer.d_float");
  98          = new StatLong("array.stroker.polystack.curves.d_float");
  99          = new StatLong("array.stroker.polystack.curveTypes.d_byte");
 100          = new StatLong("array.marlincache.rowAAChunk.d_byte");
 101          = new StatLong("array.marlincache.touchedTile.int");
 102          = new StatLong("array.renderer.alphaline.int");
 103          = new StatLong("array.renderer.crossings.int");
 104          = new StatLong("array.renderer.aux_crossings.int");
 105          = new StatLong("array.renderer.edgeBuckets.int");
 106          = new StatLong("array.renderer.edgeBucketCounts.int");
 107          = new StatLong("array.renderer.edgePtrs.int");
 108          = new StatLong("array.renderer.aux_edgePtrs.int");
 109          */
 110         // size > 8192 (exceed both tile and buckets arrays)
 111         final int size = 9000;
 112         System.out.println("image size = " + size);
 113 
 114         final BufferedImage image = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
 115 
 116         final Graphics2D g2d = (Graphics2D) image.getGraphics();
 117         try {
 118             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 119             g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
 120 
 121             g2d.setClip(0, 0, size, size);
 122             g2d.setBackground(Color.WHITE);
 123             g2d.clearRect(0, 0, size, size);
 124 
 125             g2d.setStroke(stroke);
 126             g2d.setColor(Color.BLACK);
 127 
 128             final long start = System.nanoTime();
 129 
 130             paint(g2d, size - 10f);
 131 
 132             final long time = System.nanoTime() - start;
 133 
 134             System.out.println("paint: duration= " + (1e-6 * time) + " ms.");
 135 
 136             if (SAVE_IMAGE) {
 137                 try {
 138                     final File file = new File("CrashTest-" + renderer + "-dash-" + useDashes + ".bmp");
 139 
 140                     System.out.println("Writing file: " + file.getAbsolutePath());
 141                     ImageIO.write(image, "BMP", file);
 142                 } catch (IOException ex) {
 143                     System.out.println("Writing file failure:");
 144                     ex.printStackTrace();
 145                 }
 146             }
 147         } finally {
 148             g2d.dispose();
 149         }
 150     }
 151 
 152     private static void testHugeImage(final int width, final int height)
 153     throws ArrayIndexOutOfBoundsException
 154     {
 155         System.out.println("---\n" + "testHugeImage: "
 156             + "width=" + width
 157             + ", height=" + height
 158         );
 159 
 160         final String renderer = RenderingEngine.getInstance().getClass().getSimpleName();
 161         System.out.println("Testing renderer = " + renderer);
 162 
 163         final BasicStroke stroke = createStroke(2.5f, false, 0);
 164 
 165         // size > 24bits (exceed both tile and buckets arrays)
 166         System.out.println("image size = " + width + " x "+height);
 167 
 168         final BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
 169 
 170         final Graphics2D g2d = (Graphics2D) image.getGraphics();
 171         try {
 172             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 173             g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
 174 
 175             g2d.setBackground(Color.WHITE);
 176             g2d.clearRect(0, 0, width, height);
 177 
 178             g2d.setStroke(stroke);
 179             g2d.setColor(Color.BLACK);
 180 
 181             final Path2D.Float path = new Path2D.Float(WIND_NON_ZERO, 32);
 182             path.moveTo(0, 0);
 183             path.lineTo(width, 0);
 184             path.lineTo(width, height);
 185             path.lineTo(0, height);
 186             path.lineTo(0, 0);
 187 
 188             final long start = System.nanoTime();
 189 
 190             g2d.draw(path);
 191 
 192             final long time = System.nanoTime() - start;
 193 
 194             System.out.println("paint: duration= " + (1e-6 * time) + " ms.");
 195 
 196             if (SAVE_IMAGE) {
 197                 try {
 198                     final File file = new File("CrashTest-" + renderer +
 199                                                "-huge-" + width + "x" +height + ".bmp");
 200 
 201                     System.out.println("Writing file: " + file.getAbsolutePath());
 202                     ImageIO.write(image, "BMP", file);
 203                 } catch (IOException ex) {
 204                     System.out.println("Writing file failure:");
 205                     ex.printStackTrace();
 206                 }
 207             }
 208         } finally {
 209             g2d.dispose();
 210         }
 211     }
 212 
 213     private static void paint(final Graphics2D g2d, final float size) {
 214         final double halfSize = size / 2.0;
 215 
 216         final Path2D.Float path = new Path2D.Float(WIND_NON_ZERO, 32 * 1024);
 217 
 218         // show cross:
 219         path.moveTo(0, 0);
 220         path.lineTo(size, size);
 221 
 222         path.moveTo(size, 0);
 223         path.lineTo(0, size);
 224 
 225         path.moveTo(0, 0);
 226         path.lineTo(size, 0);
 227 
 228         path.moveTo(0, 0);
 229         path.lineTo(0, size);
 230 
 231         path.moveTo(0, 0);
 232 
 233         double r = size;
 234 
 235         final int ratio = 100;
 236         int repeats = 1;
 237 
 238         int n = 0;
 239 
 240         while (r > 1.0) {
 241             repeats *= ratio;
 242 
 243             if (repeats > 10000) {
 244                 repeats = 10000;
 245             }
 246 
 247             for (int i = 0; i < repeats; i++) {
 248                 path.lineTo(halfSize - 0.5 * r + i * r / repeats,
 249                             halfSize - 0.5 * r);
 250                 n++;
 251                 path.lineTo(halfSize - 0.5 * r + i * r / repeats + 0.1,
 252                             halfSize + 0.5 * r);
 253                 n++;
 254             }
 255 
 256             r -= halfSize;
 257         }
 258         System.out.println("draw : " + n + " lines.");
 259         g2d.draw(path);
 260     }
 261 
 262     private static BasicStroke createStroke(final float width,
 263                                             final boolean useDashes,
 264                                             final float dashMinLen) {
 265         final float[] dashes;
 266 
 267         if (useDashes) {
 268             // huge dash array (exceed Dasher.INITIAL_ARRAY)
 269             dashes = new float[512];
 270 
 271             float cur = dashMinLen;
 272             float step = 0.01f;
 273 
 274             for (int i = 0; i < dashes.length; i += 2) {
 275                 dashes[i] = cur;
 276                 dashes[i + 1] = cur;
 277                 cur += step;
 278             }
 279         } else {
 280             dashes = null;
 281         }
 282 
 283         if (USE_ROUND_CAPS_AND_JOINS) {
 284             // Use both round Caps & Joins:
 285             return new BasicStroke(width, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 100.0f, dashes, 0.0f);
 286         }
 287         return new BasicStroke(width, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 100.0f, dashes, 0.0f);
 288     }
 289 }