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

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2016, 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.  Oracle designates this

@@ -28,11 +28,10 @@
 import java.awt.image.WritableRaster;
 import java.awt.image.RasterFormatException;
 import java.awt.image.SampleModel;
 import java.awt.image.ComponentSampleModel;
 import java.awt.image.SinglePixelPackedSampleModel;
-import java.awt.image.DataBuffer;
 import java.awt.image.DataBufferUShort;
 import java.awt.Rectangle;
 import java.awt.Point;
 
 /**

@@ -92,11 +91,11 @@
      *  @param sampleModel     The SampleModel that specifies the layout.
      *  @param origin          The Point that specified the origin.
      */
     public ShortComponentRaster(SampleModel sampleModel, Point origin) {
         this(sampleModel,
-             sampleModel.createDataBuffer(),
+             (DataBufferUShort) sampleModel.createDataBuffer(),
              new Rectangle(origin.x,
                            origin.y,
                            sampleModel.getWidth(),
                            sampleModel.getHeight()),
              origin,

@@ -113,12 +112,13 @@
      * @param sampleModel     The SampleModel that specifies the layout.
      * @param dataBuffer      The DataBufferUShort that contains the image data.
      * @param origin          The Point that specifies the origin.
      */
     public ShortComponentRaster(SampleModel sampleModel,
-                                   DataBuffer dataBuffer,
-                                   Point origin) {
+                                DataBufferUShort dataBuffer,
+                                Point origin)
+    {
         this(sampleModel,
              dataBuffer,
              new Rectangle(origin.x,
                            origin.y,
                            sampleModel.getWidth(),

@@ -144,32 +144,26 @@
      * @param aRegion         The Rectangle that specifies the image area.
      * @param origin          The Point that specifies the origin.
      * @param parent          The parent (if any) of this raster.
      */
     public ShortComponentRaster(SampleModel sampleModel,
-                                   DataBuffer dataBuffer,
+                                DataBufferUShort dataBuffer,
                                    Rectangle aRegion,
                                    Point origin,
-                                   ShortComponentRaster parent) {
-
+                                ShortComponentRaster parent)
+    {
         super(sampleModel, dataBuffer, aRegion, origin, parent);
         this.maxX = minX + width;
         this.maxY = minY + height;
 
-        if(!(dataBuffer instanceof DataBufferUShort)) {
-            throw new RasterFormatException("ShortComponentRasters must have "+
-                                            "short DataBuffers");
-        }
-
-        DataBufferUShort dbus = (DataBufferUShort)dataBuffer;
-        this.data = stealData(dbus, 0);
-        if (dbus.getNumBanks() != 1) {
+        this.data = stealData(dataBuffer, 0);
+        if (dataBuffer.getNumBanks() != 1) {
             throw new
                 RasterFormatException("DataBuffer for ShortComponentRasters"+
                                       " must only have 1 bank.");
         }
-        int dbOffset = dbus.getOffset();
+        int dbOffset = dataBuffer.getOffset();
 
         if (sampleModel instanceof ComponentSampleModel) {
             ComponentSampleModel csm = (ComponentSampleModel)sampleModel;
             this.type = IntegerComponentRaster.TYPE_USHORT_SAMPLES;
             this.scanlineStride = csm.getScanlineStride();

@@ -756,11 +750,11 @@
 
         int deltaX = x0 - x;
         int deltaY = y0 - y;
 
         return new ShortComponentRaster(sm,
-                                       dataBuffer,
+                                       (DataBufferUShort) dataBuffer,
                                        new Rectangle(x0, y0, width, height),
                                        new Point(sampleModelTranslateX+deltaX,
                                                  sampleModelTranslateY+deltaY),
                                        this);
     }