--- old/src/share/classes/sun/swing/LightweightContent.java	2014-02-03 18:17:16.000000000 +0400
+++ new/src/share/classes/sun/swing/LightweightContent.java	2014-02-03 18:17:16.000000000 +0400
@@ -85,31 +85,40 @@
      * {@code JLightweightFrame} calls this method to notify the client
      * application that a new data buffer has been set as a content pixel
      * buffer. Typically this occurs when a buffer of a larger size is
-     * created in response to a content resize event. The method reports
-     * a reference to the pixel data buffer, the content image bounds
-     * within the buffer and the line stride of the buffer. These values
-     * have the following correlation.
+     * created in response to a content resize event.
      * <p>
-     * The {@code width} and {@code height} matches the size of the content
+     * When a scale factor greater than one is set on a {@code JLightweightFrame}
+     * ({@link JLightweightFrame#setScaleFactor}), an {@link OffScreenHiDPIImage}
+     * is created to server the pixel buffer.
+     * <p>
+     * The method reports a reference to the pixel data buffer, the content
+     * image bounds within the buffer and the line stride of the buffer.
+     * These values have the following correlation.
+     * The {@code width} and {@code height} matches the layout size of the content
      * (the component returned from the {@link #getComponent} method). The
      * {@code x} and {@code y} is the origin of the content, {@code (0, 0)}
-     * in the coordinate space of the content, appearing at
-     * {@code data[y * linestride + x]} in the buffer. All indices
-     * {@code data[(y + j) * linestride + (x + i)]} where
-     * {@code (0 <= i < width)} and {@code (0 <= j < height)} will represent
-     * valid pixel data, {@code (i, j)} in the coordinate space of the content.
+     * in the layout coordinate space of the content, appearing at
+     * {@code data[y * scale * linestride + x * scale]} in the buffer.
+     * A pixel with indices {@code (i, j)}, where {@code (0 <= i < width)} and
+     * {@code (0 <= j < height)}, in the layout coordinate space of the content
+     * is represented by a {@code scale^2} square of pixels in the physical
+     * coordinate space of the buffer. The top-left corner of the square has the
+     * following physical coordinate in the buffer:
+     * {@code data[(y + j) * scale * linestride + (x + i) * scale]}.
      *
      * @param data the content pixel data buffer of INT_ARGB_PRE type
-     * @param x the x coordinate of the image
-     * @param y the y coordinate of the image
-     * @param width the width of the image
-     * @param height the height of the image
+     * @param x the logical x coordinate of the image
+     * @param y the logical y coordinate of the image
+     * @param width the logical width of the image
+     * @param height the logical height of the image
      * @param linestride the line stride of the pixel buffer
+     * @param scale the scale factor of the pixel buffer
      */
     public void imageBufferReset(int[] data,
                                  int x, int y,
                                  int width, int height,
-                                 int linestride);
+                                 int linestride,
+                                 int scale);
 
     /**
      * {@code JLightweightFrame} calls this method to notify the client