src/java.desktop/share/classes/sun/awt/image/SunVolatileImage.java

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  import java.awt.image.VolatileImage;
  import sun.java2d.SunGraphics2D;
  import sun.java2d.SurfaceManagerFactory;
  import sun.java2d.DestSurfaceProvider;
  import sun.java2d.Surface;
+ import sun.java2d.pipe.Region;
  import static sun.java2d.pipe.hw.AccelSurface.*;
  
  /**
   * This class is the base implementation of the VolatileImage
   * abstract class.  The class implements most of the standard Image
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      /**
       * This method creates a BufferedImage intended for use as a "snapshot"
       * or a backup surface with the given horizontal and vertical scale factors.
       */
      public BufferedImage getBackupImage(double scaleX, double scaleY) {
!         int w = (int) Math.ceil(getWidth() * scaleX);
!         int h = (int) Math.ceil(getHeight() * scaleY);
          return graphicsConfig.createCompatibleImage(w, h, getTransparency());
      }
  
      public BufferedImage getSnapshot() {
          BufferedImage bi = getBackupImage();
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      /**
       * This method creates a BufferedImage intended for use as a "snapshot"
       * or a backup surface with the given horizontal and vertical scale factors.
       */
      public BufferedImage getBackupImage(double scaleX, double scaleY) {
!         int w = Region.clipRound(getWidth() * scaleX);
!         int h = Region.clipRound(getHeight() * scaleY);
          return graphicsConfig.createCompatibleImage(w, h, getTransparency());
      }
  
      public BufferedImage getSnapshot() {
          BufferedImage bi = getBackupImage();