8032667: [macosx] Components cannot be rendered in HiDPI to BufferedImage

Reviewed-by: serb, pchelko

src/macosx/classes/com/apple/laf/AquaPainter.java

@@ -148,34 +148,44 @@ abstract class AquaPainter <T extends JRSUIState> {
                 return;
             }
 
-            int scale = 1;
-            if (g instanceof SunGraphics2D) {
-                scale = ((SunGraphics2D) g).surfaceData.getDefaultScale();
-            }
             final GraphicsConfiguration config = g.getDeviceConfiguration();
             final ImageCache cache = ImageCache.getInstance();
-            final int imgW = bounds.width * scale;
-            final int imgH = bounds.height * scale;
+            final int width = bounds.width;
+            final int height = bounds.height;
             AquaPixelsKey key = new AquaPixelsKey(config,
-                    imgW, imgH, scale, controlState);
-            BufferedImage img = (BufferedImage) cache.getImage(key);
+                    width, height, bounds, controlState);
+            Image img = (BufferedImage) cache.getImage(key);
             if (img == null) {
-                img = new BufferedImage(imgW, imgH, BufferedImage.TYPE_INT_ARGB_PRE);
+
+                Image baseImage = createImage(width, height, bounds, control,
+                        controlState);
+
+                img = new MultiResolutionBufferedImage(baseImage,
+                        (rvWidth, rvHeight) -> createImage(rvWidth, rvHeight,
+                                bounds, control, controlState));
+
                 if (!controlState.is(JRSUIConstants.Animating.YES)) {
                     cache.setImage(key, img);
                 }
-
-                final WritableRaster raster = img.getRaster();
-                final DataBufferInt buffer = (DataBufferInt) raster.getDataBuffer();
-
-                control.set(controlState);
-                control.paint(SunWritableRaster.stealData(buffer, 0),
-                        imgW, imgH, 0, 0, bounds.width, bounds.height);
-                SunWritableRaster.markDirty(buffer);
             }
 
             g.drawImage(img, bounds.x, bounds.y, bounds.width, bounds.height, null);
         }
+
+        private static Image createImage(int imgW, int imgH, final Rectangle bounds,
+                final JRSUIControl control, JRSUIState controlState) {
+            BufferedImage img = new BufferedImage(imgW, imgH,
+                    BufferedImage.TYPE_INT_ARGB_PRE);
+
+            final WritableRaster raster = img.getRaster();
+            final DataBufferInt buffer = (DataBufferInt) raster.getDataBuffer();
+
+            control.set(controlState);
+            control.paint(SunWritableRaster.stealData(buffer, 0),
+                    imgW, imgH, 0, 0, bounds.width, bounds.height);
+            SunWritableRaster.markDirty(buffer);
+            return img;
+        }
     }
 
     private static class AquaPixelsKey implements ImageCache.PixelsKey {
@@ -187,17 +197,17 @@ abstract class AquaPainter <T extends JRSUIState> {
         private final GraphicsConfiguration config;
         private final int w;
         private final int h;
-        private final int scale;
+        private final Rectangle bounds;
         private final JRSUIState state;
 
         AquaPixelsKey(final GraphicsConfiguration config,
-                final int w, final int h, final int scale,
+                final int w, final int h, final Rectangle bounds,
                 final JRSUIState state) {
             this.pixelCount = w * h;
             this.config = config;
             this.w = w;
             this.h = h;
-            this.scale = scale;
+            this.bounds = bounds;
             this.state = state;
             this.hash = hash();
         }
@@ -210,7 +220,7 @@ abstract class AquaPainter <T extends JRSUIState> {
             int hash = config != null ? config.hashCode() : 0;
             hash = 31 * hash + w;
             hash = 31 * hash + h;
-            hash = 31 * hash + scale;
+            hash = 31 * hash + bounds.hashCode();
             hash = 31 * hash + state.hashCode();
             return hash;
         }
@@ -225,7 +235,7 @@ abstract class AquaPainter <T extends JRSUIState> {
             if (obj instanceof AquaPixelsKey) {
                 AquaPixelsKey key = (AquaPixelsKey) obj;
                 return config == key.config && w == key.w && h == key.h
-                        && scale == key.scale && state.equals(key.state);
+                        && bounds.equals(key.bounds) && state.equals(key.state);
             }
             return false;
         }

src/share/classes/sun/awt/image/MultiResolutionBufferedImage.java

@@ -24,6 +24,7 @@
  */
 package sun.awt.image;
 
+import java.awt.Dimension;
 import java.awt.Image;
 import java.awt.Graphics;
 import java.awt.geom.Dimension2D;
@@ -42,6 +43,13 @@ public class MultiResolutionBufferedImage extends BufferedImage
     private final Dimension2D[] sizes;
     private int availableInfo;
 
+    public MultiResolutionBufferedImage(Image baseImage,
+            BiFunction<Integer, Integer, Image> mapper) {
+        this(baseImage, new Dimension[]{new Dimension(
+            baseImage.getWidth(null), baseImage.getHeight(null))
+        }, mapper);
+    }
+
     public MultiResolutionBufferedImage(Image baseImage,
             Dimension2D[] sizes, BiFunction<Integer, Integer, Image> mapper) {
         super(baseImage.getWidth(null), baseImage.getHeight(null),
@@ -115,7 +123,7 @@ public class MultiResolutionBufferedImage extends BufferedImage
     }
 
     private static void preload(Image image, int availableInfo) {
-        if (image instanceof ToolkitImage) {
+        if (availableInfo != 0 && image instanceof ToolkitImage) {
             ((ToolkitImage) image).preload(new ImageObserver() {
                 int flags = availableInfo;
 

test/javax/swing/JCheckBox/8032667/bug8032667.html

+<!--
+ 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.
+-->
+
+<html>
+<body>
+
+Verify that scaled components are rendered smoothly to image.
+
+1. Run the test.
+2. Check that Selected and Deselected JCheckBox icons are drawn smoothly.
+If so, press PASS, else press FAIL.
+
+<applet  code="bug8032667.class" width=400 height=400></applet>
+
+</body>
+</html>

test/javax/swing/JCheckBox/8032667/bug8032667.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.BorderLayout;
+import java.awt.Canvas;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import javax.swing.JApplet;
+import javax.swing.JCheckBox;
+import javax.swing.JComponent;
+import javax.swing.SwingUtilities;
+
+/* @test
+ * @bug 8032667
+ * @summary [macosx] Components cannot be rendered in HiDPI to BufferedImage
+ * @run applet/manual=yesno bug8032667.html
+ */
+public class bug8032667 extends JApplet {
+
+    static final int scale = 2;
+    static final int width = 130;
+    static final int height = 50;
+    static final int scaledWidth = scale * width;
+    static final int scaledHeight = scale * height;
+
+    @Override
+    public void init() {
+        SwingUtilities.invokeLater(new Runnable() {
+
+            @Override
+            public void run() {
+
+                final Image image1 = getImage(getCheckBox("Deselected", false));
+                final Image image2 = getImage(getCheckBox("Selected", true));
+
+                Canvas canvas = new Canvas() {
+
+                    @Override
+                    public void paint(Graphics g) {
+                        super.paint(g);
+                        g.drawImage(image1, 0, 0, scaledWidth, scaledHeight, this);
+                        g.drawImage(image2, 0, scaledHeight + 5,
+                                scaledWidth, scaledHeight, this);
+                    }
+                };
+
+                getContentPane().add(canvas, BorderLayout.CENTER);
+            }
+        });
+    }
+
+    static JCheckBox getCheckBox(String text, boolean selected) {
+        JCheckBox checkBox = new JCheckBox(text);
+        checkBox.setSelected(selected);
+        checkBox.setSize(new Dimension(width, height));
+        return checkBox;
+    }
+
+    static Image getImage(JComponent component) {
+        final BufferedImage image = new BufferedImage(
+                scaledWidth, scaledHeight, BufferedImage.TYPE_INT_ARGB);
+        final Graphics g = image.getGraphics();
+        ((Graphics2D) g).scale(scale, scale);
+        component.paint(g);
+        g.dispose();
+
+        return image;
+    }
+}

test/javax/swing/JCheckBox/8032667/bug8032667_image_diff.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.Dimension;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import javax.swing.JCheckBox;
+import javax.swing.JComponent;
+import javax.swing.SwingUtilities;
+import sun.awt.OSInfo;
+
+/* @test
+ * @bug 8032667
+ * @summary [macosx] Components cannot be rendered in HiDPI to BufferedImage
+ * @run main bug8032667_image_diff
+ */
+public class bug8032667_image_diff {
+
+    static final int IMAGE_WIDTH = 130;
+    static final int IMAGE_HEIGHT = 50;
+
+    public static void main(String[] args) throws Exception {
+
+        if(!OSInfo.OSType.MACOSX.equals(OSInfo.getOSType())){
+            return;
+        }
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+
+                JCheckBox checkBox = new JCheckBox();
+                checkBox.setSelected(true);
+                checkBox.setSize(new Dimension(IMAGE_WIDTH, IMAGE_HEIGHT));
+
+                final BufferedImage image1 = getHiDPIImage(checkBox);
+                final BufferedImage image2 = getScaledImage(checkBox);
+
+                if(equal(image1, image2)){
+                    throw new RuntimeException("2x image equals to non smooth image");
+                }
+            }
+        });
+    }
+
+    static boolean equal(BufferedImage image1, BufferedImage image2) {
+
+        int w = image1.getWidth();
+        int h = image1.getHeight();
+
+        if (w != image2.getWidth() || h != image2.getHeight()) {
+            return false;
+        }
+
+        for (int i = 0; i < w; i++) {
+            for (int j = 0; j < h; j++) {
+                int color1 = image1.getRGB(i, j);
+                int color2 = image2.getRGB(i, j);
+
+                if (color1 != color2) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    static BufferedImage getHiDPIImage(JComponent component) {
+        return getImage(component, 2, IMAGE_WIDTH, IMAGE_HEIGHT);
+    }
+
+    static BufferedImage getScaledImage(JComponent component) {
+        Image image1x = getImage(component, 1, IMAGE_WIDTH, IMAGE_HEIGHT);
+        final BufferedImage image2x = new BufferedImage(
+                2 * IMAGE_WIDTH, 2 * IMAGE_HEIGHT, BufferedImage.TYPE_INT_ARGB);
+        final Graphics g = image2x.getGraphics();
+        ((Graphics2D) g).scale(2, 2);
+        g.drawImage(image1x, 0, 0, null);
+        g.dispose();
+        return image2x;
+    }
+
+    static BufferedImage getImage(JComponent component, int scale, int width, int height) {
+        final BufferedImage image = new BufferedImage(
+                scale * width, scale * height, BufferedImage.TYPE_INT_ARGB);
+        final Graphics g = image.getGraphics();
+        ((Graphics2D) g).scale(scale, scale);
+        component.paint(g);
+        g.dispose();
+        return image;
+    }
+}