8048782: OpenJDK: PiscesCache : xmax/ymax rounding up can cause RasterFormatException

Summary: Redirect PiscesTileGenerator.getBbox() to PiscesCache.getBBox().
Reviewed-by: prr, flar

src/share/classes/sun/java2d/pisces/PiscesCache.java

@@ -167,6 +167,15 @@ final class PiscesCache {
         rowAARLE[row][1] = end;
     }
 
+    void getBBox(int bbox[]) {
+        // Since we add +1 to bboxX1,bboxY1 so when PTG asks for bbox,
+        // we will give after -1
+        bbox[0] = bboxX0;
+        bbox[1] = bboxY0;
+        bbox[2] = bboxX1 - 1;
+        bbox[3] = bboxY1 - 1;
+    }
+
     @Override
     public String toString() {
         String ret = "bbox = ["+

src/share/classes/sun/java2d/pisces/PiscesTileGenerator.java

@@ -76,10 +76,7 @@ final class PiscesTileGenerator implements AATileGenerator {
     }
 
     public void getBbox(int bbox[]) {
-        bbox[0] = cache.bboxX0;
-        bbox[1] = cache.bboxY0;
-        bbox[2] = cache.bboxX1;
-        bbox[3] = cache.bboxY1;
+        cache.getBBox(bbox);
         //System.out.println("bbox["+bbox[0]+", "+bbox[1]+" => "+bbox[2]+", "+bbox[3]+"]");
     }
 

test/sun/java2d/pisces/OpenJDKFillBug.java

+/*
+ * Copyright (c) 2015, 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.
+ */
+import java.awt.Color;
+import java.awt.Composite;
+import java.awt.CompositeContext;
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.GeneralPath;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.RasterFormatException;
+
+/**
+ * @test
+ * @bug 8048782
+ * @summary Test program that demonstrates PiscesRendering bug in
+ * OpenJDK 1.7.0.60 (and probably in all other OpenJDK versions, too).
+ */
+
+public class OpenJDKFillBug
+{
+    /**
+     * Test program that demonstrates a bug in OpenJDK 1.7.0.60 (and
+     * probably in all other OpenJDK versions, too). To see the bug, simply run
+     * the 'main' program with OpenJDK. The bug makes the 'g2d.fill'
+     * method fail with the following exception:
+     *
+     * This bug is found in OpenJDK but also is present in OracleJDK
+     * if run with
+     * -Dsun.java2d.renderer=sun.java2d.pisces.PiscesRenderingEngine
+     *
+     * The bug is related to sun.java2d.pisces.PiscesCache constructor
+     * that accepts '(int minx,int miny,int maxx,int maxy)' arguments:
+     * the internal 'bboxX1' and 'bboxY1' are set to values one greater
+     * than given maximum X and Y values. Those maximum values are then
+     * later used in AAShapePipe' class 'renderTiles' method, where a
+     * Y/X loop eventually calls 'GeneralCompositePipe' class
+     * 'renderPathTile' method. In that method, the operation will
+     * eventually call 'IntegerInterleavedRaster' class
+     * 'createWritableChild' method with arguments:
+     *
+     * <UL>
+     * <LI>x=800
+     * <LI>y=0
+     * <LI>width=2 (this value is too high: should be 1)
+     * <LI>height=32
+     * <LI>x0=0
+     * <LI>y0=0
+     * <LI>bandList[]=null
+     * </UL>
+     *
+     * This calls for a sub-raster with bounds that fall outside the
+     * original raster, and therefore the 'createWritableChild' method
+     * correctly throws 'RasterFormatException'.
+     *
+     * The bug is closely related to the use of a custom Composite
+     * implementation, which are quite rare. The application where this
+     * bug was first detected implements a high-quality PDF rendering
+     * engine that needs custom Composite operations to properly
+     * implement PDF advanced color blending and masking operators.
+     */
+
+    public static void main(String args[])
+    {
+        BufferedImage bi = new BufferedImage(801,1202,
+                                             BufferedImage.TYPE_INT_ARGB);
+        Graphics2D g2d = bi.createGraphics();
+        GeneralPath gp = new GeneralPath();
+        AffineTransform m = new AffineTransform(2.483489907915543,
+                                                0.0,
+                                                0.0,
+                                                -2.4844977263331955,
+                                                0.0,
+                                                1202.0);
+        Composite c = new CustomComposite();
+
+        gp.moveTo(-4.511, -14.349);
+        gp.lineTo(327.489, -14.349);
+        gp.lineTo(327.489, 494.15);
+        gp.lineTo(-4.511, 494.15);
+        gp.closePath();
+
+        g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
+                             RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
+        g2d.setRenderingHint(RenderingHints.KEY_RENDERING,
+                             RenderingHints.VALUE_RENDER_QUALITY);
+        g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING,
+                             RenderingHints.VALUE_COLOR_RENDER_QUALITY);
+        g2d.setRenderingHint(RenderingHints.KEY_TEXT_LCD_CONTRAST,
+                             Integer.valueOf(140));
+        g2d.setRenderingHint(RenderingHints.KEY_DITHERING,
+                             RenderingHints.VALUE_DITHER_ENABLE);
+        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+                             RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT);
+        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
+                             RenderingHints.VALUE_ANTIALIAS_ON);
+        g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,
+                             RenderingHints.VALUE_STROKE_NORMALIZE);
+        g2d.setPaint(Color.red);
+        g2d.setComposite(c);
+        g2d.setTransform(m);
+        try {
+            g2d.fill(gp);
+        } catch (RasterFormatException rfe) {
+            System.out.println("Test failed");
+            throw new RuntimeException("xmax/ymax rounding cause RasterFormatException: " + rfe);
+        }
+        g2d.dispose();
+        System.out.println("Test passed");
+    }
+
+    // === CustomComposite ===
+
+    /**
+     * Dummy custom Composite implementation.
+     */
+
+    public static class CustomComposite implements Composite
+    {
+        @Override
+        public CompositeContext createContext(ColorModel srcColorModel,
+                                              ColorModel dstColorModel,
+                                              RenderingHints hints)
+        {
+            return new CustomCompositeContext();
+        }
+
+        // === CustomCompositeContext ===
+
+        /**
+         * Dummy custom CompositeContext implementation.
+         */
+
+        public static class CustomCompositeContext implements CompositeContext
+        {
+
+            @Override
+            public void dispose()
+            {
+                // NOP
+            }
+
+            @Override
+            public void compose(Raster src,Raster dstIn,WritableRaster dstOut)
+            {
+                // NOP
+            }
+        }
+    }
+}