6749060: LCD AA text rendered incorrectly when destination is non opaque (sw pipeline only)

Reviewed-by: campbell, prr

src/share/classes/sun/java2d/SurfaceData.java

@@ -449,7 +449,8 @@ public abstract class SurfaceData
         // For now the answer can only be true in the following cases:
         if (sg2d.compositeState <= SunGraphics2D.COMP_ISCOPY &&
             sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR &&
-            sg2d.clipState <= SunGraphics2D.CLIP_RECTANGULAR)
+            sg2d.clipState <= SunGraphics2D.CLIP_RECTANGULAR &&
+            sg2d.surfaceData.getTransparency() == Transparency.OPAQUE)
         {
             if (haveLCDLoop == LCDLOOP_UNKNOWN) {
                 DrawGlyphListLCD loop =

test/sun/java2d/DirectX/NonOpaqueDestLCDAATest/NonOpaqueDestLCDAATest.java

@@ -23,10 +23,11 @@
 
 /*
  * @test
- * @bug 6728834
+ * @bug 6728834 6749060
  * @summary Tests that LCD AA text rendering works properly with destinations
  * being VolatileImage of all transparency types
  * @author Dmitri.Trembovetski: area=Graphics
+ * @run main/manual/othervm -Dsun.java2d.d3d=false NonOpaqueDestLCDAATest
  * @run main/manual/othervm NonOpaqueDestLCDAATest
  * @run main/manual/othervm -Dsun.java2d.opengl=True NonOpaqueDestLCDAATest
  */
@@ -35,9 +36,11 @@ import java.awt.AlphaComposite;
 import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.EventQueue;
+import java.awt.Font;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.GraphicsConfiguration;
+import java.awt.Image;
 import java.awt.RenderingHints;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
@@ -45,6 +48,7 @@ import java.awt.event.ComponentAdapter;
 import java.awt.event.ComponentEvent;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
+import java.awt.image.BufferedImage;
 import java.awt.image.VolatileImage;
 import java.io.File;
 import java.util.concurrent.CountDownLatch;
@@ -62,35 +66,43 @@ public class NonOpaqueDestLCDAATest extends JFrame implements ActionListener {
     public NonOpaqueDestLCDAATest() {
         JTextArea desc = new JTextArea();
         desc.setText(
-            "\n  Instructions: the three text strings below should appear\n" +
-            "  readable, without smudges or misshapen bold glyphs.\n\n" +
-            "  If they look fine the test PASSED otherwise it FAILED.\n");
+            "\n  Instructions: the three text strings below should appear" +
+            "  readable, without smudges or misshapen bold glyphs.\n" +
+            "  You may need a magnifier to notice some bad colorfringing in "+
+            "  in SW Translucent case, especially in vertical stems.\n\n"+
+            "  Basically text rendered to TRANSLUCENT destination should look"+
+            "  similar to one rendered to OPAQUE - it may differ in whether or" +
+            "  not it's LCD, but it should look 'correct'\n\n"+
+            "If the text looks fine the test PASSED otherwise it FAILED.\n");
         desc.setEditable(false);
         desc.setBackground(Color.black);
         desc.setForeground(Color.green);
         add("North", desc);
         JPanel renderPanel = new JPanel() {
+            @Override
             public void paintComponent(Graphics g) {
                 render(g, getWidth(), getHeight());
             }
         };
-        renderPanel.setPreferredSize(new Dimension(350, 150));
+        renderPanel.setPreferredSize(new Dimension(1024, 650));
         renderPanel.addComponentListener(new ComponentAdapter() {
+            @Override
             public void componentResized(ComponentEvent e) {
                 images = null;
             }
         });
         add("Center", renderPanel);
 
-        JButton passed = new JButton("Passed");
-        JButton failed = new JButton("Failed");
-        passed.addActionListener(this);
-        failed.addActionListener(this);
+        JButton passedBtn = new JButton("Passed");
+        JButton failedBtn = new JButton("Failed");
+        passedBtn.addActionListener(this);
+        failedBtn.addActionListener(this);
         JPanel p = new JPanel();
-        p.add(passed);
-        p.add(failed);
+        p.add(passedBtn);
+        p.add(failedBtn);
         add("South", p);
         addWindowListener(new WindowAdapter() {
+            @Override
             public void windowClosing(WindowEvent e) {
                 complete.countDown();
             }
@@ -101,14 +113,18 @@ public class NonOpaqueDestLCDAATest extends JFrame implements ActionListener {
     public void render(Graphics g, int w, int h) {
         initImages(w, h);
 
+        g.setColor(new Color(0xAD, 0xD8, 0xE6));
+        g.fillRect(0, 0, w, h);
+
         Graphics2D g2d = (Graphics2D) g.create();
-        for (VolatileImage vi : images) {
-            g2d.drawImage(vi, 0, 0, null);
-            g2d.translate(0, vi.getHeight());
+        for (Image im : images) {
+            g2d.drawImage(im, 0, 0, null);
+            g2d.translate(0, im.getHeight(null));
         }
     }
 
     String tr[] = { "OPAQUE", "BITMASK", "TRANSLUCENT" };
+    @Override
     public void actionPerformed(ActionEvent e) {
         if (e.getActionCommand().equals("Passed")) {
             passed = true;
@@ -116,9 +132,17 @@ public class NonOpaqueDestLCDAATest extends JFrame implements ActionListener {
         } else if (e.getActionCommand().equals("Failed")) {
             System.out.println("Test Failed");
             for (int i = 0; i < images.length; i++) {
-                String f = "NonOpaqueDestLCDAATest_"+tr[i]+".png";
+                String f = "NonOpaqueDestLCDAATest_"+tr[i];
                 try {
-                    ImageIO.write(images[i].getSnapshot(), "png", new File(f));
+                    if (images[i] instanceof VolatileImage) {
+                        f += "_vi.png";
+                        ImageIO.write(((VolatileImage)images[i]).
+                                getSnapshot(), "png", new File(f));
+                    } else {
+                        f += "_bi.png";
+                        ImageIO.write((BufferedImage)images[i],
+                                       "png", new File(f));
+                    }
                     System.out.printf("Dumped %s image to %s\n", tr[i], f);
                 } catch (Throwable t) {}
             }
@@ -128,37 +152,51 @@ public class NonOpaqueDestLCDAATest extends JFrame implements ActionListener {
         complete.countDown();
     }
 
-    static void clear(Graphics2D  g, int w, int h) {
+    static void clear(Graphics2D  g, int type, int w, int h) {
         Graphics2D gg = (Graphics2D) g.create();
-        gg.setColor(new Color(0, 0, 0, 0));
-        gg.setComposite(AlphaComposite.Src);
+        if (type > OPAQUE) {
+            gg.setColor(new Color(0, 0, 0, 0));
+            gg.setComposite(AlphaComposite.Src);
+        } else {
+            gg.setColor(new Color(0xAD, 0xD8, 0xE6));
+        }
         gg.fillRect(0, 0, w, h);
     }
 
-    VolatileImage images[];
+    private void render(Image im, int type, String s) {
+        Graphics2D g2d = (Graphics2D) im.getGraphics();
+        clear(g2d, type, im.getWidth(null), im.getHeight(null));
+        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+                RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
+        Font f = new Font("Dialog", Font.BOLD, 40);// g2d.getFont().deriveFont(32.0f);
+        g2d.setColor(Color.white);
+        g2d.setFont(g2d.getFont().deriveFont(36.0f));
+        g2d.drawString(s, 10, im.getHeight(null) / 2);
+    }
+
+    Image images[];
     private void initImages(int w, int h) {
         if (images == null) {
-            images = new VolatileImage[3];
+            images = new Image[6];
             GraphicsConfiguration gc = getGraphicsConfiguration();
             for (int i = OPAQUE; i <= TRANSLUCENT; i++) {
                 VolatileImage vi =
-                    gc.createCompatibleVolatileImage(w,h/3,i);
+                    gc.createCompatibleVolatileImage(w,h/images.length,i);
                 images[i-1] = vi;
                 vi.validate(gc);
-                Graphics2D g2d = (Graphics2D) vi.getGraphics();
-                if (i > OPAQUE) {
-                    clear(g2d, vi.getWidth(), vi.getHeight());
-                }
-                g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
-                        RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
-                String s = "LCD AA Text rendered to "+tr[i-1]+ " destination";
-                g2d.drawString(s, 10, vi.getHeight()/2);
+                String s = "LCD AA Text rendered to " + tr[i - 1] + " HW destination";
+                render(vi, i, s);
+
+                s = "LCD AA Text rendered to " + tr[i - 1] + " SW destination";
+                images[i-1+3] = gc.createCompatibleImage(w, h/images.length, i);
+                render(images[i-1+3], i, s);
             }
         }
     }
 
     public static void main(String[] args) throws InterruptedException {
         EventQueue.invokeLater(new Runnable() {
+            @Override
             public void run() {
                 NonOpaqueDestLCDAATest t = new NonOpaqueDestLCDAATest();
                 t.pack();