This commit was manufactured by cvs2svn to create branch 'JSR-231'.

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/branches/JSR-231@244 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 1402 insertions, 0 deletions

diff --git a/src/net/java/games/jogl/impl/mipmap/Image.java b/src/net/java/games/jogl/impl/mipmap/Image.java
new file mode 100644
index 000000000..1ea3b1f52
--- /dev/null
+++ b/src/net/java/games/jogl/impl/mipmap/Image.java
@@ -0,0 +1,1402 @@
+/*
+ * License Applicability. Except to the extent portions of this file are
+ * made subject to an alternative license as permitted in the SGI Free
+ * Software License B, Version 1.1 (the "License"), the contents of this
+ * file are subject only to the provisions of the License. You may not use
+ * this file except in compliance with the License. You may obtain a copy
+ * of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+ * Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+ * 
+ * http://oss.sgi.com/projects/FreeB
+ * 
+ * Note that, as provided in the License, the Software is distributed on an
+ * "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+ * DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+ * CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+ * 
+ * Original Code. The Original Code is: OpenGL Sample Implementation,
+ * Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+ * Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+ * Copyright in any portions created by third parties is as indicated
+ * elsewhere herein. All Rights Reserved.
+ * 
+ * Additional Notice Provisions: The application programming interfaces
+ * established by SGI in conjunction with the Original Code are The
+ * OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+ * April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+ * 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+ * Window System(R) (Version 1.3), released October 19, 1998. This software
+ * was created using the OpenGL(R) version 1.2.1 Sample Implementation
+ * published by SGI, but has not been independently verified as being
+ * compliant with the OpenGL(R) version 1.2.1 Specification.
+ */
+
+package net.java.games.jogl.impl.mipmap;
+
+import net.java.games.jogl.GL;
+import java.nio.*;
+
+/**
+ *
+ * @author  Administrator
+ */
+public class Image {
+  
+  /** Creates a new instance of Image */
+  public Image() {
+  }
+  
+  public static short getShortFromByteArray( byte[] array, int index ) {
+    short s;
+    s = (short)(array[index] << 8 );
+    s |= (short)(0x00FF & array[index+1]);
+    return( s );
+  }
+  
+  public static int getIntFromByteArray( byte[] array, int index ) {
+    int i;
+    i = ( array[index] << 24 ) & 0xFF000000;
+    i |= ( array[index+1] << 16 ) & 0x00FF0000;
+    i |= ( array[index+2] << 8 ) & 0x0000FF00;
+    i |= ( array[index+3] ) & 0x000000FF;
+    return( i );
+  }
+  
+  public static float getFloatFromByteArray( byte[] array, int index ) {
+    int i = getIntFromByteArray( array, index );
+    return( Float.intBitsToFloat(i) );
+  }
+  
+  /*
+   *  Extract array from user's data applying all pixel store modes.
+   *  The internal format used is an array of unsigned shorts.
+   */
+  public static void fill_image( PixelStorageModes psm, int width, int height,
+                  int format, int type, boolean index_format, ByteBuffer userdata,
+                  ShortBuffer newimage ) {
+    int components;
+    int element_size;
+    int rowsize;
+    int padding;
+    int groups_per_line;
+    int group_size;
+    int elements_per_line;
+    int start;
+    int iter = 0;
+    int iter2;
+    int i, j, k;
+    boolean myswap_bytes;
+    
+    // Create a Extract interface object
+    Extract extract = null;
+    switch( type ) {
+      case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+        extract = new Extract332();
+        break;
+      case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+        extract = new Extract233rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+        extract = new Extract565();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+        extract = new Extract565rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+        extract = new Extract4444();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+        extract = new Extract4444rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+        extract = new Extract5551();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+        extract = new Extract1555rev();
+        break;
+      case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+        extract = new Extract8888();
+        break;
+      case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+        extract = new Extract8888rev();
+        break;
+      case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+        extract = new Extract1010102();
+        break;
+      case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+        extract = new Extract2101010rev();
+        break;
+    }
+    
+    myswap_bytes = psm.getUnpackSwapBytes();
+    components = Mipmap.elements_per_group( format, type );
+    if( psm.getUnpackRowLength() > 0 ) {
+      groups_per_line = psm.getUnpackRowLength();
+    } else {
+      groups_per_line = width;
+    }
+    
+    // All formats except GL_BITMAP fall out trivially
+    if( type == GL.GL_BITMAP ) {
+      int bit_offset;
+      int current_bit;
+      
+      rowsize = ( groups_per_line * components + 7 ) / 8;
+      padding = ( rowsize % psm.getUnpackAlignment() );
+      if( padding != 0 ) {
+        rowsize += psm.getUnpackAlignment() - padding;
+      }
+      start = psm.getUnpackSkipRows() * rowsize + ( psm.getUnpackSkipPixels() * components / 8 );
+      elements_per_line = width * components;
+      iter2 = 0;
+      for( i = 0; i < height; i++ ) {
+        iter = start;
+        userdata.position( iter ); // ****************************************
+        bit_offset = (psm.getUnpackSkipPixels() * components) % 8;
+        for( j = 0; j < elements_per_line; j++ ) {
+          // retrieve bit
+          if( psm.getUnpackLsbFirst() ) {
+            userdata.position( iter );
+            current_bit = ( userdata.get() & 0x000000FF ) & ( 1 << bit_offset );//userdata[iter] & ( 1 << bit_offset );
+          } else {
+            current_bit = ( userdata.get() & 0x000000FF ) & ( 1 << ( 7 - bit_offset ) );
+          }
+          if( current_bit != 0 ) {
+            if( index_format ) {
+              newimage.position( iter2 );
+              newimage.put( (short)1 );
+            } else {
+              newimage.position( iter2 );
+              newimage.put( (short)65535 );
+            }
+          } else {
+            newimage.position( iter2 );
+            newimage.put( (short)0 );
+          }
+          bit_offset++;
+          if( bit_offset == 8 ) {
+            bit_offset = 0;
+            iter++;
+          }
+          iter2++;
+        }
+        start += rowsize;
+      }
+    } else {
+      element_size = Mipmap.bytes_per_element( type );
+      group_size = element_size * components;
+      if( element_size == 1 ) {
+        myswap_bytes = false;
+      }
+      
+      rowsize = groups_per_line * group_size;
+      padding = ( rowsize % psm.getUnpackAlignment() );
+      if( padding != 0 ) {
+        rowsize += psm.getUnpackAlignment() - padding;
+      }
+      start = psm.getUnpackSkipRows() * rowsize + psm.getUnpackSkipPixels() * group_size;
+      elements_per_line = width * components;
+      
+      iter2 = 0;
+      for( i = 0; i < height; i++ ) {
+        iter = start;
+        userdata.position( iter ); //***************************************
+        for( j = 0; j < elements_per_line; j++ ) {
+          Type_Widget widget = new Type_Widget();
+          float[] extractComponents = new float[4];
+          userdata.position( iter );
+          switch( type ) {
+            case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+              extract.extract( false, userdata /*userdata[iter]*/, extractComponents );
+              for( k = 0; k < 3; k++ ) {
+                newimage.put( (short)(extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+              extract.extract( false, userdata /*userdata[iter]*/, extractComponents );
+              for( k = 0; k < 3; k++ ) {
+                newimage.put( (short)(extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_BYTE ):
+              if( index_format ) {
+                newimage.put( (short)( 0x000000FF & userdata.get() ) );//userdata[iter];
+              } else {
+                newimage.put( (short)( 0x000000FF & userdata.get()/*userdata[iter]*/ * 257 ) );
+              }
+              break;
+            case( GL.GL_BYTE ):
+              if( index_format ) {
+                newimage.put( userdata.get() ); //userdata[iter];
+              } else {
+                newimage.put( (short)(userdata.get()/*userdata[iter]*/ * 516 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+              extract.extract( myswap_bytes, userdata/*userdata[iter]*/, extractComponents );
+              for( k = 0; k < 3; k++ ) {
+                newimage.put( (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 3; k++ ) {
+                newimage.put( (short)(extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newimage.put( (short)(extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newimage.put( (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newimage.put( (short)(extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newimage.put( (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT ):
+            case( GL.GL_SHORT ):
+              if( myswap_bytes ) {
+                widget.setUB1( userdata.get() );
+                widget.setUB0( userdata.get() );
+              } else {
+                widget.setUB0( userdata.get() );
+                widget.setUB1( userdata.get() );
+              }
+              if( type == GL.GL_SHORT ) {
+                if( index_format ) {
+                  newimage.put( widget.getS0() );
+                } else {
+                  newimage.put( (short)(widget.getS0() * 2) );
+                }
+              } else {
+                newimage.put( widget.getUS0() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newimage.put( (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newimage.put( (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newimage.put( (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+              extract.extract( myswap_bytes, userdata, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newimage.put( (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_INT ):
+            case( GL.GL_UNSIGNED_INT ):
+            case( GL.GL_FLOAT ):
+              if( myswap_bytes ) {
+                widget.setUB3( userdata.get() );
+                widget.setUB2( userdata.get() );
+                widget.setUB1( userdata.get() );
+                widget.setUB0( userdata.get() );
+              } else {
+                widget.setUB0( userdata.get() );
+                widget.setUB1( userdata.get() );
+                widget.setUB2( userdata.get() );
+                widget.setUB3( userdata.get() );
+              }
+              if( type == GL.GL_FLOAT ) {
+                if( index_format ) {
+                  newimage.put( (short)widget.getF() );
+                } else {
+                  newimage.put( (short)(widget.getF() * 65535 ) );
+                }
+              } else if( type == GL.GL_UNSIGNED_INT ) {
+                if( index_format ) {
+                  newimage.put( (short)( widget.getUI() ) );
+                } else {
+                  newimage.put( (short)( widget.getUI() >> 16 ) );
+                }
+              } else {
+                if( index_format ) {
+                  newimage.put( (short)( widget.getI() ) );
+                } else {
+                  newimage.put( (short)( widget.getI() >> 15 ) );
+                }
+              }
+              break;
+          }
+          iter += element_size;
+        }  // for j
+        start += rowsize;
+        // want iter pointing at start, not within, row for assertion purposes
+        iter = start;
+      } // for i
+      
+      // iterators should be one byte past end
+      if( !Mipmap.isTypePackedPixel( type ) ) {
+        assert( iter2 == ( width * height * components ) );
+      } else {
+        assert( iter2 == ( width * height * Mipmap.elements_per_group( format, 0 ) ) );
+      }
+      assert( iter == ( rowsize * height + psm.getUnpackSkipRows() * rowsize + psm.getUnpackSkipPixels() * group_size ) );
+    }
+  }
+  
+  /*
+   *  Insert array into user's data applying all pixel store modes.
+   *  Theinternal format is an array of unsigned shorts.
+   *  empty_image() because it is the opposet of fill_image().
+   */
+  public static void empty_image( PixelStorageModes psm, int width, int height, 
+                                  int format, int type, boolean index_format, 
+                                  ShortBuffer oldimage, ByteBuffer userdata ) {
+    
+    int components;
+    int element_size;
+    int rowsize;
+    int padding;
+    int groups_per_line;
+    int group_size;
+    int elements_per_line;
+    int start;
+    int iter = 0;
+    int iter2;
+    int i, j, k;
+    boolean myswap_bytes;
+    
+    // Create a Extract interface object
+    Extract extract = null;
+    switch( type ) {
+      case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+        extract = new Extract332();
+        break;
+      case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+        extract = new Extract233rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+        extract = new Extract565();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+        extract = new Extract565rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+        extract = new Extract4444();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+        extract = new Extract4444rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+        extract = new Extract5551();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+        extract = new Extract1555rev();
+        break;
+      case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+        extract = new Extract8888();
+        break;
+      case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+        extract = new Extract8888rev();
+        break;
+      case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+        extract = new Extract1010102();
+        break;
+      case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+        extract = new Extract2101010rev();
+        break;
+    }
+    
+    myswap_bytes = psm.getPackSwapBytes();
+    components = Mipmap.elements_per_group( format, type );
+    if( psm.getPackRowLength() > 0 ) {
+      groups_per_line = psm.getPackRowLength();
+    } else {
+      groups_per_line = width;
+    }
+    
+    // all formats except GL_BITMAP fall out trivially
+    if( type == GL.GL_BITMAP ) {
+      int bit_offset;
+      int current_bit;
+      
+      rowsize = ( groups_per_line * components + 7 ) / 8;
+      padding = ( rowsize % psm.getPackAlignment() );
+      if( padding != 0 ) {
+        rowsize += psm.getPackAlignment() - padding;
+      }
+      start = psm.getPackSkipRows() * rowsize + psm.getPackSkipPixels() * components / 8;
+      elements_per_line = width * components;
+      iter2 = 0;
+      for( i = 0; i < height; i++ ) {
+        iter = start;
+        bit_offset = ( psm.getPackSkipPixels() * components ) % 8;
+        for( j = 0; j < elements_per_line; j++ ) {
+          if( index_format ) {
+            current_bit = oldimage.get( iter2 ) & 1;
+          } else {
+            if( oldimage.get( iter2 ) < 0 ) { // must check for negative rather than 32767
+              current_bit = 1;
+            } else {
+              current_bit = 0;
+            }
+          }
+          
+          if( current_bit != 0 ) {
+            if( psm.getPackLsbFirst() ) {
+              userdata.put( iter, (byte)( ( userdata.get( iter ) | ( 1 << bit_offset ) ) ) );
+            } else {
+              userdata.put( iter, (byte)( ( userdata.get( iter ) | ( 7 - bit_offset ) ) ) );
+            }
+          } else {
+            if( psm.getPackLsbFirst() ) {
+              //userdata[iter] &= ~( 1 << bit_offset );
+              userdata.put( iter, (byte)( ( userdata.get( iter ) & ~( 1 << bit_offset ) ) ) );
+            } else {
+              //userdata[iter] &= ~( 1 << ( 7 - bit_offset ) );
+              userdata.put( iter, (byte)( ( userdata.get( iter ) & ~( 7 - bit_offset ) ) ) );
+            }
+          }
+          
+          bit_offset++;
+          if( bit_offset == 8 ) {
+            bit_offset = 0;
+            iter++;
+          }
+          iter2++;
+        }
+        start += rowsize;
+      }
+    } else {
+      float shoveComponents[] = new float[4];
+      
+      element_size = Mipmap.bytes_per_element( type );
+      group_size = element_size * components;
+      if( element_size == 1 ) {
+        myswap_bytes = false;
+      }
+      
+      rowsize = groups_per_line * group_size;
+      padding = ( rowsize % psm.getPackAlignment() );
+      if( padding != 0 ) {
+        rowsize += psm.getPackAlignment() - padding;
+      }
+      start = psm.getPackSkipRows() * rowsize + psm.getPackSkipPixels() * group_size;
+      elements_per_line = width * components;
+      
+      iter2 = 0;
+      for( i = 0; i < height; i++ ) {
+        iter = start;
+        for( j = 0; j < elements_per_line; j++ ) {
+          Type_Widget widget = new Type_Widget();
+          
+          switch( type ) {
+            case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+              for( k = 0; k < 3; k++ ) {
+                shoveComponents[k] = oldimage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, userdata );
+              break;
+            case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+              for( k = 0; k < 3; k++ ) {
+                shoveComponents[k] = oldimage.get(iter2++) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, userdata );
+              break;
+            case( GL.GL_UNSIGNED_BYTE ):
+              if( index_format ) {
+                //userdata[iter] = (byte)oldimage[iter2++];
+                userdata.put( iter, (byte)oldimage.get(iter2++) );
+              } else {
+                //userdata[iter] = (byte)( oldimage[iter2++] >> 8 );
+                userdata.put( iter, (byte)( oldimage.get(iter2++) ) );
+              }
+              break;
+            case( GL.GL_BYTE ):
+              if( index_format ) {
+                //userdata[iter] = (byte)oldimage[iter2++];
+                userdata.put( iter, (byte)oldimage.get(iter2++) );
+              } else {
+                //userdata[iter] = (byte)( oldimage[iter2++] >> 9 );
+                userdata.put( iter, (byte)( oldimage.get(iter2++) ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+              for( k = 0; k < 3; k++ ) {
+                shoveComponents[k] = oldimage.get(iter2++) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB0();
+                userdata.put( iter, widget.getUB1() );
+                userdata.put( iter + 1,widget.getUB0() );
+              } else {
+                //userdata[iter] = widget.getUB0();
+                //userdata[iter+1] = widget.getUB1();
+                userdata.put( iter, widget.getUB0() );
+                userdata.put( iter + 1, widget.getUB1() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+              for( k = 0; k < 3; k++ ) {
+                shoveComponents[k] = oldimage.get(iter2++) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB0();
+                userdata.put( iter, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB0() );
+              } else {
+                //userdata[iter] = widget.getUB0();
+                //userdata[iter+1] = widget.getUB1();
+                userdata.put( iter, widget.getUB0() );
+                userdata.put( iter, widget.getUB1() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldimage.get(iter2++) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB0();
+                userdata.put( iter, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB0() );
+              } else {
+                //userdata[iter] = widget.getUB0();
+                //userdata[iter+1] = widget.getUB1();
+                userdata.put( iter, widget.getUB0() );
+                userdata.put( iter + 1, widget.getUB1() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldimage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB0();
+                userdata.put( iter, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB0() );
+              } else {
+                //userdata[iter] = widget.getUB0();
+                //userdata[iter+1] = widget.getUB1();
+                userdata.put( iter, widget.getUB0() );
+                userdata.put( iter + 1, widget.getUB1() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldimage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB0();
+                userdata.put( iter, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB0() );
+              } else {
+                //userdata[iter] = widget.getUB0();
+                //userdata[iter+1] = widget.getUB1();
+                userdata.put( iter, widget.getUB0() );
+                userdata.put( iter + 1, widget.getUB1() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldimage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB0();
+                userdata.put( iter, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB0() );
+              } else {
+                //userdata[iter] = widget.getUB0();
+                //userdata[iter+1] = widget.getUB1();
+                userdata.put( iter, widget.getUB0() );
+                userdata.put( iter + 1, widget.getUB1() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT ):
+            case( GL.GL_SHORT ):
+              if( type == GL.GL_SHORT ) {
+                if( index_format ) {
+                  widget.setS0( oldimage.get( iter2++ ) );
+                } else {
+                  widget.setS0( (short)(oldimage.get( iter2++ ) >> 1) );
+                }
+              } else {
+                widget.setUS0( oldimage.get( iter2++ ) );
+              }
+              if( myswap_bytes ) {
+                //userdata[iter] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB0();
+                userdata.put( iter, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB0() );
+              } else {
+                //userdata[iter] = widget.getUB0();
+                //userdata[iter] = widget.getUB1();
+                userdata.put( iter, widget.getUB0() );
+                userdata.put( iter + 1, widget.getUB1() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldimage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter+3] = widget.getUB0();
+                //userdata[iter+2] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB2();
+                //userdata[iter  ] = widget.getUB3();
+                userdata.put( iter + 3, widget.getUB0() );
+                userdata.put( iter + 2, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB2() );
+                userdata.put( iter    , widget.getUB3() );
+              } else {
+                userdata.putInt( iter, widget.getUI() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldimage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter+3] = widget.getUB0();
+                //userdata[iter+2] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB2();
+                //userdata[iter  ] = widget.getUB3();
+                userdata.put( iter + 3, widget.getUB0() );
+                userdata.put( iter + 2, widget.getUB1() );
+                userdata.put( iter + 2, widget.getUB2() );
+                userdata.put( iter    , widget.getUB3() );
+              } else {
+                userdata.putInt( iter, widget.getUI() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldimage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter+3] = widget.getUB0();
+                //userdata[iter+2] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB2();
+                //userdata[iter  ] = widget.getUB3();
+                userdata.put( iter + 3, widget.getUB0() );
+                userdata.put( iter + 2, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB2() );
+                userdata.put( iter    , widget.getUB3() );
+              } else {
+                userdata.putInt( iter, widget.getUI() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldimage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswap_bytes ) {
+                //userdata[iter+3] = widget.getUB0();
+                //userdata[iter+2] = widget.getUB1();
+                //userdata[iter+1] = widget.getUB2();
+                //userdata[iter  ] = widget.getUB3();
+                userdata.put( iter + 3, widget.getUB0() );
+                userdata.put( iter + 2, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB2() );
+                userdata.put( iter    , widget.getUB3() );
+              } else {
+                userdata.putInt( iter, widget.getUI() );
+              }
+              break;
+            case( GL.GL_INT ):
+            case( GL.GL_UNSIGNED_INT ):
+            case( GL.GL_FLOAT ):
+              if( type == GL.GL_FLOAT ) {
+                if( index_format ) {
+                  widget.setF( oldimage.get( iter2++ ) );
+                } else {
+                  widget.setF( oldimage.get( iter2++ ) / 65535.0f );
+                }
+              } else if( type == GL.GL_UNSIGNED_INT ) {
+                if( index_format ) {
+                  widget.setUI( oldimage.get( iter2++ ) );
+                } else {
+                  widget.setUI( oldimage.get( iter2++ ) * 65537 );
+                }
+              } else {
+                if( index_format ) {
+                  widget.setI( oldimage.get( iter2++ ) );
+                } else {
+                  widget.setI( (oldimage.get( iter2++ ) * 65537) / 2 );
+                }
+              }
+              if( myswap_bytes ) {
+                userdata.put( iter + 3, widget.getUB0() );
+                userdata.put( iter + 2, widget.getUB1() );
+                userdata.put( iter + 1, widget.getUB2() );
+                userdata.put( iter    , widget.getUB3() );
+              } else {
+                userdata.put( iter    , widget.getUB0() );
+                userdata.put( iter + 1, widget.getUB1() );
+                userdata.put( iter + 2, widget.getUB2() );
+                userdata.put( iter + 3, widget.getUB3() );
+              }
+              break;
+          }
+          iter += element_size;
+        } // for j
+        start += rowsize;
+        // want iter pointing at start, not within, row for assertion purposes
+        iter = start;
+      } // for i
+      // iterators should be one byte past end
+      if( !Mipmap.isTypePackedPixel( type ) ) {
+        assert( iter2 == width * height * components );
+      } else {
+        assert( iter2 == width * height * Mipmap.elements_per_group( format, 0 ) );
+      }
+      assert( iter == rowsize * height + psm.getPackSkipRows() * rowsize + psm.getPackSkipPixels() * group_size );
+    }
+  }
+  
+  public static void fillImage3D( PixelStorageModes psm, int width, int height,
+          int depth, int format, int type, boolean indexFormat, ByteBuffer userImage,
+          ShortBuffer newImage ) {
+    boolean myswapBytes;
+    int components;
+    int groupsPerLine;
+    int elementSize;
+    int groupSize;
+    int rowSize;
+    int padding;
+    int elementsPerLine;
+    int rowsPerImage;
+    int imageSize;
+    int start, rowStart;
+    int iter = 0;
+    int iter2 = 0;
+    int ww, hh, dd, k;
+    Type_Widget widget = new Type_Widget();
+    float extractComponents[] = new float[4];
+    
+    // Create a Extract interface object
+    Extract extract = null;
+    switch( type ) {
+      case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+        extract = new Extract332();
+        break;
+      case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+        extract = new Extract233rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+        extract = new Extract565();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+        extract = new Extract565rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+        extract = new Extract4444();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+        extract = new Extract4444rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+        extract = new Extract5551();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+        extract = new Extract1555rev();
+        break;
+      case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+        extract = new Extract8888();
+        break;
+      case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+        extract = new Extract8888rev();
+        break;
+      case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+        extract = new Extract1010102();
+        break;
+      case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+        extract = new Extract2101010rev();
+        break;
+    }
+    
+    myswapBytes = psm.getUnpackSwapBytes();
+    components = Mipmap.elements_per_group( format, type );
+    if( psm.getUnpackRowLength() > 0 ) {
+      groupsPerLine = psm.getUnpackRowLength();
+    } else {
+      groupsPerLine = width;
+    }
+    elementSize = Mipmap.bytes_per_element( type );
+    groupSize = elementSize * components;
+    if( elementSize == 1 ) {
+      myswapBytes = false;
+    }
+    
+    // 3dstuff begin
+    if( psm.getUnpackImageHeight() > 0 ) {
+      rowsPerImage = psm.getUnpackImageHeight();
+    } else {
+      rowsPerImage = height;
+    }
+    // 3dstuff end
+    
+    rowSize = groupsPerLine * groupSize;
+    padding = rowSize % psm.getUnpackAlignment();
+    if( padding != 0 ) {
+      rowSize += psm.getUnpackAlignment() - padding;
+    }
+    
+    imageSize = rowsPerImage * rowSize; // 3dstuff
+    
+    start = psm.getUnpackSkipRows() * rowSize + 
+            psm.getUnpackSkipPixels() * groupSize + 
+            psm.getUnpackSkipImages() * imageSize;
+    elementsPerLine = width * components;
+    
+    iter2 = 0;
+    for( dd = 0; dd < depth; dd++ ) {
+      rowStart = start;
+      for( hh = 0; hh < height; hh++ ) {
+        iter = rowStart;
+        for( ww = 0; ww < elementsPerLine; ww++ ) {
+          
+          switch( type ) {
+            case( GL.GL_UNSIGNED_BYTE ):
+              if( indexFormat ) {
+                newImage.put( iter2++, (short)(0x000000FF & userImage.get( iter ) ) );
+              } else {
+                newImage.put( iter2++, (short)((0x000000FF & userImage.get( iter ) ) * 257 ) );
+              }
+              break;
+            case( GL.GL_BYTE ):
+              if( indexFormat ) {
+                newImage.put( iter2++, userImage.get( iter ) );
+              } else {
+                newImage.put( iter2++, (short)(userImage.get( iter ) * 516 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+              userImage.position( iter );
+              extract.extract( false, userImage, extractComponents );
+              for( k = 0; k < 3; k++ ) {
+                newImage.put( iter2++, (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+              userImage.position( iter );
+              extract.extract( false, userImage, extractComponents );
+              for( k = 0; k < 3; k++ ) {
+                newImage.put( iter2++, (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)(extractComponents[k] * 65535) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT ):
+            case( GL.GL_SHORT ):
+              if( myswapBytes ) {
+                widget.setUB0( userImage.get( iter + 1 ) );
+                widget.setUB1( userImage.get( iter ) );
+              } else {
+                widget.setUB0( userImage.get( iter ) );
+                widget.setUB1( userImage.get( iter + 1 ) );
+              }
+              if( type == GL.GL_SHORT ) {
+                if( indexFormat ) {
+                  newImage.put( iter2++, widget.getUS0() );
+                } else {
+                  newImage.put( iter2++, (short)(widget.getUS0() * 2) );
+                }
+              } else {
+                newImage.put( iter2++, widget.getUS0() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+              userImage.position( iter );
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+              extract.extract( myswapBytes, userImage, extractComponents );
+              for( k = 0; k < 4; k++ ) {
+                newImage.put( iter2++, (short)( extractComponents[k] * 65535 ) );
+              }
+              break;
+            case( GL.GL_INT ):
+            case( GL.GL_UNSIGNED_INT ):
+            case( GL.GL_FLOAT ):
+              if( myswapBytes ) {
+                widget.setUB0( userImage.get( iter + 3 ) );
+                widget.setUB1( userImage.get( iter + 2 ) );
+                widget.setUB2( userImage.get( iter + 1 ) );
+                widget.setUB3( userImage.get( iter     ) );
+              } else {
+                widget.setUB0( userImage.get( iter     ) );
+                widget.setUB1( userImage.get( iter + 1 ) );
+                widget.setUB2( userImage.get( iter + 2 ) );
+                widget.setUB3( userImage.get( iter + 3 ) );
+              }
+              if( type == GL.GL_FLOAT ) {
+                if( indexFormat ) {
+                  newImage.put( iter2++, (short)widget.getF() );
+                } else {
+                  newImage.put( iter2++, (short)( widget.getF() * 65535.0f ) );
+                }
+              } else if( type == GL.GL_UNSIGNED_INT ) {
+                if( indexFormat ) {
+                  newImage.put( iter2++, (short)widget.getUI() );
+                } else {
+                  newImage.put( iter2++, (short)(widget.getUI() >> 16) );
+                }
+              } else {
+                if( indexFormat ) {
+                  newImage.put( iter2++, (short)widget.getI() );
+                } else {
+                  newImage.put( iter2++, (short)(widget.getI() >> 15) );
+                }
+              }
+              break;
+            default:
+              assert( false );
+          }
+          iter += elementSize;
+        } // for ww
+        rowStart += rowSize;
+        iter = rowStart; // for assert
+      } // for hh
+      start += imageSize;
+    }// for dd
+    
+    // iterators should be one byte past end
+    if( !Mipmap.isTypePackedPixel( type ) ) {
+      assert( iter2 == width * height * depth * components );
+    } else {
+      assert( iter2 == width * height * depth * Mipmap.elements_per_group( format, 0 ) );
+    }
+    assert( iter == rowSize * height * depth + psm.getUnpackSkipRows() * rowSize + 
+            psm.getUnpackSkipPixels() * groupSize +
+            psm.getUnpackSkipImages() * imageSize );
+  }
+  
+  public static void emptyImage3D( PixelStorageModes psm, int width, int height, int depth,
+          int format, int type, boolean indexFormat, ShortBuffer oldImage, ByteBuffer userImage ) {
+    boolean myswapBytes;
+    int components;
+    int groupsPerLine;
+    int elementSize;
+    int groupSize;
+    int rowSize;
+    int padding;
+    int start, rowStart, iter;
+    int elementsPerLine;
+    int iter2;
+    int ii, jj, dd, k;
+    int rowsPerImage;
+    int imageSize;
+    Type_Widget widget = new Type_Widget();
+    float[] shoveComponents = new float[4];
+    
+    // Create a Extract interface object
+    Extract extract = null;
+    switch( type ) {
+      case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+        extract = new Extract332();
+        break;
+      case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+        extract = new Extract233rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+        extract = new Extract565();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+        extract = new Extract565rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+        extract = new Extract4444();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+        extract = new Extract4444rev();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+        extract = new Extract5551();
+        break;
+      case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+        extract = new Extract1555rev();
+        break;
+      case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+        extract = new Extract8888();
+        break;
+      case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+        extract = new Extract8888rev();
+        break;
+      case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+        extract = new Extract1010102();
+        break;
+      case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+        extract = new Extract2101010rev();
+        break;
+    }
+    
+    iter = 0;
+    
+    myswapBytes = psm.getPackSwapBytes();
+    components = Mipmap.elements_per_group( format, type );
+    if( psm.getPackRowLength() > 0 ) {
+      groupsPerLine = psm.getPackRowLength();
+    } else {
+      groupsPerLine = width;
+    }
+    
+    elementSize = Mipmap.bytes_per_element( type );
+    groupSize = elementSize * components;
+    if( elementSize == 1 ) {
+      myswapBytes = false;
+    }
+    
+    // 3dstuff begin
+    if( psm.getPackImageHeight() > 0 ) {
+      rowsPerImage = psm.getPackImageHeight();
+    } else {
+      rowsPerImage = height;
+    }
+    
+    // 3dstuff end
+    
+    rowSize = groupsPerLine * groupSize;
+    padding = rowSize % psm.getPackAlignment();
+    if( padding != 0 ) {
+      rowSize += psm.getPackAlignment() - padding;
+    }
+    
+    imageSize = rowsPerImage * rowSize;
+    
+    start = psm.getPackSkipRows() * rowSize +
+            psm.getPackSkipPixels() * groupSize +
+            psm.getPackSkipImages() * imageSize;
+    elementsPerLine = width * components;
+    
+    iter2 = 0;
+    for( dd = 0; dd < depth; dd++ ) {
+      rowStart = start;
+      
+      for( ii = 0; ii < height; ii++ ) {
+        iter = rowStart;
+        
+        for( jj = 0; jj < elementsPerLine; jj++ ) {
+          
+          switch( type ) {
+            case( GL.GL_UNSIGNED_BYTE ):
+              if( indexFormat ) {
+                userImage.put( iter, (byte)(oldImage.get( iter2++ ) ) );
+              } else {
+                userImage.put( iter, (byte)(oldImage.get( iter2++ ) >> 8 ) );
+              }
+              break;
+            case( GL.GL_BYTE ):
+              if( indexFormat ) {
+                userImage.put( iter, (byte)(oldImage.get(iter2++) ) );
+              } else {
+                userImage.put( iter, (byte)(oldImage.get(iter2++) >> 9) );
+              }
+              break;
+            case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+              for( k = 0; k < 3; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, userImage );
+              break;
+            case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+              for( k = 0; k < 3; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, userImage );
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.putShort( iter, widget.getUB1() );
+                userImage.putShort( iter + 1, widget.getUB0() );
+              } else {
+                userImage.putShort( iter, widget.getUS0() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB0() );
+              } else {
+                userImage.putShort( iter, widget.getUS0() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB0() );
+              } else {
+                userImage.putShort( iter, widget.getUS0() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB0() );
+              } else {
+                userImage.putShort( iter, widget.getUS0() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB0() );
+              } else {
+                userImage.putShort( iter, widget.getUS0() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB0() );
+              } else {
+                userImage.putShort( iter, widget.getUS0() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_SHORT ):
+            case( GL.GL_SHORT ):
+              if( type == GL.GL_SHORT ) {
+                if( indexFormat ) {
+                  widget.setS0( (short)oldImage.get( iter2++ ) );
+                } else {
+                  widget.setS0( (short)(oldImage.get( iter2++ ) >> 1) );
+                }
+              } else {
+                widget.setUS0( (short)oldImage.get( iter2++ ) );
+              }
+              if( myswapBytes ) {
+                userImage.put( iter, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB0() );
+              } else {
+                userImage.put( iter, widget.getUB0() );
+                userImage.put( iter + 1, widget.getUB1() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter + 3, widget.getUB0() );
+                userImage.put( iter + 2, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB2() );
+                userImage.put( iter    , widget.getUB3() );
+              } else {
+                userImage.putInt( iter, widget.getUI() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter + 3, widget.getUB0() );
+                userImage.put( iter + 2, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB2() );
+                userImage.put( iter    , widget.getUB3() );
+              } else {
+                userImage.putInt( iter, widget.getUI() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter + 3, widget.getUB0() );
+                userImage.put( iter + 2, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB2() );
+                userImage.put( iter    ,widget.getUB3() );
+              } else {
+                userImage.putInt( iter, widget.getUI() );
+              }
+              break;
+            case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+              for( k = 0; k < 4; k++ ) {
+                shoveComponents[k] = oldImage.get( iter2++ ) / 65535.0f;
+              }
+              extract.shove( shoveComponents, 0, widget.getBuffer() );
+              if( myswapBytes ) {
+                userImage.put( iter + 3, widget.getUB0() );
+                userImage.put( iter + 2, widget.getUB2() );
+                userImage.put( iter + 1, widget.getUB1() );
+                userImage.put( iter    , widget.getUB0() );
+              } else {
+                userImage.putInt( iter, widget.getUI() );
+              }
+              break;
+            case( GL.GL_INT ):
+            case( GL.GL_UNSIGNED_INT ):
+            case( GL.GL_FLOAT ):
+              if( type == GL.GL_FLOAT ) {
+                if( indexFormat ) {
+                  widget.setF( oldImage.get( iter2++ ) );
+                } else {
+                  widget.setF( oldImage.get( iter2++ ) / 65535.0f );
+                }
+              } else if( type == GL.GL_UNSIGNED_INT ) {
+                if( indexFormat ) {
+                  widget.setUI( oldImage.get( iter2++ ) );
+                } else {
+                  widget.setUI( oldImage.get( iter2++ ) * 65537 );
+                }
+              } else {
+                if( indexFormat ) {
+                  widget.setI( oldImage.get( iter2++ ) );
+                } else {
+                  widget.setI( ( oldImage.get( iter2++ ) * 65535 ) / 2 );
+                }
+              }
+              if( myswapBytes ) {
+                userImage.put( iter + 3, widget.getUB0() );
+                userImage.put( iter + 2, widget.getUB1() );
+                userImage.put( iter + 1, widget.getUB2() );
+                userImage.put( iter    , widget.getUB3() );
+              } else {
+                userImage.put( iter    , widget.getUB0() );
+                userImage.put( iter + 1, widget.getUB1() );
+                userImage.put( iter + 2, widget.getUB2() );
+                userImage.put( iter + 3, widget.getUB3() );
+              }
+              break;
+            default:
+              assert( false );
+          }
+          
+          iter += elementSize;
+        } // for jj
+        rowStart += rowSize;
+      } // for ii
+      start += imageSize;
+    } // for dd
+    
+    if( !Mipmap.isTypePackedPixel( type ) ) {
+      assert( iter2 == width * height * depth * components );
+    } else {
+      assert( iter2 == width * height * depth * Mipmap.elements_per_group( format, 0 ) );
+    }
+    assert( iter == rowSize * height * depth + 
+                    psm.getUnpackSkipRows() * rowSize +
+                    psm.getUnpackSkipPixels() * groupSize +
+                    psm.getUnpackSkipImages() * imageSize );
+  }
+}