src/java.desktop/share/classes/sun/java2d/pipe/DrawImage.java

*** 338,348 ****
       *      correspond to the TransformHelpers, which we know we have. And
       *      acceleration can change the type of the surface
       * <li> Image will be used only once and acceleration caching wouldn't help
       * </ul>
       */
!     BufferedImage makeBufferedImage(Image img, Color bgColor, int type,
                                      int sx1, int sy1, int sx2, int sy2)
      {
          final int width = sx2 - sx1;
          final int height = sy2 - sy1;
          final BufferedImage bimg = new BufferedImage(width, height, type);
--- 338,348 ----
       *      correspond to the TransformHelpers, which we know we have. And
       *      acceleration can change the type of the surface
       * <li> Image will be used only once and acceleration caching wouldn't help
       * </ul>
       */
!     private BufferedImage makeBufferedImage(Image img, Color bgColor, int type,
                                              int sx1, int sy1, int sx2, int sy2)
      {
          final int width = sx2 - sx1;
          final int height = sy2 - sy1;
          final BufferedImage bimg = new BufferedImage(width, height, type);
*** 428,441 ****
              }
          }
  
          if (isBgOperation(srcData, bgColor)) {
              // We cannot perform bg operations during transform so make
!             // an opaque temp image with the appropriate background
!             // and work from there.
!             img = makeBufferedImage(img, bgColor, BufferedImage.TYPE_INT_RGB,
!                                     sx1, sy1, sx2, sy2);
              // Temp image has appropriate subimage at 0,0 now.
              sx2 -= sx1;
              sy2 -= sy1;
              sx1 = sy1 = 0;
  
--- 428,447 ----
              }
          }
  
          if (isBgOperation(srcData, bgColor)) {
              // We cannot perform bg operations during transform so make
!             // a temp image with the appropriate background based on
!             // background alpha value and work from there. If background
!             // alpha is opaque use INT_RGB else use INT_ARGB so that we
!             // will not lose translucency of background.
! 
!             int bgAlpha = bgColor.getAlpha();
!             int type = ((bgAlpha == 255)
!                         ? BufferedImage.TYPE_INT_RGB
!                         : BufferedImage.TYPE_INT_ARGB);
!             img = makeBufferedImage(img, bgColor, type, sx1, sy1, sx2, sy2);
              // Temp image has appropriate subimage at 0,0 now.
              sx2 -= sx1;
              sy2 -= sy1;
              sx1 = sy1 = 0;