8061456: [OGL] Incorrect clip is used during sw->surface blit in xor mode

Reviewed-by: bae, prr

src/share/classes/sun/java2d/opengl/OGLBlitLoops.java

@@ -869,7 +869,7 @@ final class OGLGeneralTransformedBlit extends TransformBlit {
     }
 }
 
-class OGLAnyCompositeBlit extends Blit {
+final class OGLAnyCompositeBlit extends Blit {
     private WeakReference<SurfaceData> dstTmp;
 
     OGLAnyCompositeBlit() {
@@ -895,11 +895,12 @@ class OGLAnyCompositeBlit extends Blit {
         // convert destination to IntArgbPre
         SurfaceData dstBuffer = convertFrom(convertdst, dst, dx, dy, w, h,
                           cachedDst, BufferedImage.TYPE_INT_ARGB_PRE);
+        Region bufferClip =
+                clip == null ? null : clip.getTranslatedRegion(-dx, -dy);
 
         Blit performop = Blit.getFromCache(src.getSurfaceType(),
                 CompositeType.Any, dstBuffer.getSurfaceType());
-
-        performop.Blit(src, dstBuffer, comp, clip, sx, sy, 0, 0, w, h);
+        performop.Blit(src, dstBuffer, comp, bufferClip, sx, sy, 0, 0, w, h);
 
         if (dstBuffer != cachedDst) {
             // cache the intermediate surface

test/java/awt/image/DrawImage/IncorrectClipXorModeSW2Surface.java

+/*
+ * Copyright (c) 2014, 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.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsEnvironment;
+import java.awt.Image;
+import java.awt.Rectangle;
+import java.awt.Shape;
+import java.awt.geom.AffineTransform;
+import java.awt.image.BufferedImage;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.DataBufferInt;
+import java.awt.image.DataBufferShort;
+import java.awt.image.VolatileImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import static java.awt.geom.Rectangle2D.Double;
+
+/**
+ * @test
+ * @bug 8061456
+ * @summary Tests drawing BI to volatile image using different clips + xor mode.
+ *          Results of the blit BI to compatibleImage is used for comparison.
+ * @author Sergey Bylokhov
+ */
+public final class IncorrectClipXorModeSW2Surface {
+
+    private static int[] SIZES = {2, 10, 100};
+    private static final Shape[] SHAPES = {
+                                           new Rectangle(0, 0, 0, 0),
+                                           new Rectangle(0, 0, 1, 1),
+                                           new Rectangle(0, 1, 1, 1),
+                                           new Rectangle(1, 0, 1, 1),
+                                           new Rectangle(1, 1, 1, 1),
+
+                                           new Double(0, 0, 0.5, 0.5),
+                                           new Double(0, 0.5, 0.5, 0.5),
+                                           new Double(0.5, 0, 0.5, 0.5),
+                                           new Double(0.5, 0.5, 0.5, 0.5),
+                                           new Double(0.25, 0.25, 0.5, 0.5),
+                                           new Double(0, 0.25, 1, 0.5),
+                                           new Double(0.25, 0, 0.5, 1),
+
+                                           new Double(.10, .10, .20, .20),
+                                           new Double(.75, .75, .20, .20),
+                                           new Double(.75, .10, .20, .20),
+                                           new Double(.10, .75, .20, .20),
+    };
+
+    public static void main(final String[] args) throws IOException {
+        GraphicsEnvironment ge = GraphicsEnvironment
+                .getLocalGraphicsEnvironment();
+        GraphicsConfiguration gc = ge.getDefaultScreenDevice()
+                                     .getDefaultConfiguration();
+        AffineTransform at;
+        for (int size : SIZES) {
+            at = AffineTransform.getScaleInstance(size, size);
+            for (Shape clip : SHAPES) {
+                clip = at.createTransformedShape(clip);
+                for (Shape to : SHAPES) {
+                    to = at.createTransformedShape(to);
+                    // Prepare test images
+                    BufferedImage snapshot;
+                    BufferedImage bi = getBufferedImage(size);
+                    VolatileImage vi = getVolatileImage(gc, size);
+                    while (true) {
+                        vi.validate(gc);
+                        Graphics2D g2d = vi.createGraphics();
+                        g2d.setColor(Color.GREEN);
+                        g2d.fillRect(0, 0, size, size);
+                        g2d.dispose();
+                        if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
+                            continue;
+                        }
+                        draw(clip, to, bi, vi);
+                        snapshot = vi.getSnapshot();
+                        if (vi.contentsLost()) {
+                            continue;
+                        }
+                        break;
+                    }
+                    // Prepare gold images
+                    BufferedImage goldvi = getCompatibleImage(gc, size);
+                    BufferedImage goldbi = getBufferedImage(size);
+                    draw(clip, to, goldbi, goldvi);
+                    validate(snapshot, goldvi);
+                    vi.flush();
+                }
+            }
+        }
+    }
+
+    private static void draw(Shape clip, Shape shape, Image from, Image to) {
+        Graphics2D g2d = (Graphics2D) to.getGraphics();
+        g2d.setXORMode(Color.BLACK);
+        g2d.setClip(clip);
+        Rectangle toBounds = shape.getBounds();
+        g2d.drawImage(from, toBounds.x, toBounds.y, toBounds.width,
+                      toBounds.height, null);
+        g2d.dispose();
+    }
+
+    private static BufferedImage getBufferedImage(int sw) {
+        final BufferedImage bi = new BufferedImage(sw, sw, BufferedImage.TYPE_INT_ARGB);
+        Graphics2D g2d = bi.createGraphics();
+        g2d.setColor(Color.RED);
+        g2d.fillRect(0, 0, sw, sw);
+        g2d.dispose();
+
+        final DataBuffer db = bi.getRaster().getDataBuffer();
+        if (db instanceof DataBufferInt) {
+            ((DataBufferInt) db).getData();
+        } else if (db instanceof DataBufferShort) {
+            ((DataBufferShort) db).getData();
+        } else if (db instanceof DataBufferByte) {
+            ((DataBufferByte) db).getData();
+        } else {
+            try {
+                bi.setAccelerationPriority(0.0f);
+            } catch (final Throwable ignored) {
+            }
+        }
+        return bi;
+    }
+
+    private static VolatileImage getVolatileImage(GraphicsConfiguration gc,
+                                                  int size) {
+        return gc.createCompatibleVolatileImage(size, size);
+    }
+
+    private static BufferedImage getCompatibleImage(GraphicsConfiguration gc,
+                                                    int size) {
+        BufferedImage image = gc.createCompatibleImage(size, size);
+        Graphics2D g2d = image.createGraphics();
+        g2d.setColor(Color.GREEN);
+        g2d.fillRect(0, 0, size, size);
+        g2d.dispose();
+        return image;
+    }
+
+    private static void validate(BufferedImage bi, BufferedImage goldbi)
+            throws IOException {
+        for (int x = 0; x < bi.getWidth(); ++x) {
+            for (int y = 0; y < bi.getHeight(); ++y) {
+                if (goldbi.getRGB(x, y) != bi.getRGB(x, y)) {
+                    ImageIO.write(bi, "png", new File("actual.png"));
+                    ImageIO.write(goldbi, "png", new File("expected.png"));
+                    throw new RuntimeException("Test failed.");
+                }
+            }
+        }
+    }
+}