1 /*

     2  * Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package sun.java2d.d3d;

    27 

    28 import java.awt.GraphicsConfiguration;

    29 import java.awt.Image;

    30 import java.awt.Transparency;

    31 import java.awt.image.ColorModel;

    32 import sun.awt.Win32GraphicsDevice;

    33 import sun.java2d.loops.SurfaceType;

    34 import sun.java2d.windows.Win32SurfaceData;

    35 

    36 public class D3DBackBufferSurfaceData extends D3DSurfaceData {

    37 

    38     private Win32SurfaceData parentData;

    39 

    40     /**

    41      * Private constructor.  Use createData() to create an object.

    42      */

    43     private D3DBackBufferSurfaceData(int width, int height,

    44                                      SurfaceType sType, ColorModel cm,

    45                                      GraphicsConfiguration gc,

    46                                      Image image, int screen,

    47                                      Win32SurfaceData parentData)

    48     {

    49         super(width, height, D3DSurfaceData.D3D_ATTACHED_SURFACE,

    50               sType, cm, gc, image, Transparency.OPAQUE);

    51         this.parentData = parentData;

    52         initSurface(width, height, screen, parentData);

    53     }

    54 

    55     private native void restoreDepthBuffer();

    56 

    57     @Override

    58     public void restoreSurface() {

    59         parentData.restoreSurface();

    60         // The above call restores the primary surface

    61         // to which this backbuffer is attached. But

    62         // we need to explicitly restore the depth buffer

    63         // associated with this backbuffer surface, because it's not

    64         // part of a 'complex' primary surface, and thus will not be

    65         // restored as part of the primary surface restoration.

    66         restoreDepthBuffer();

    67     }

    68 

    69     public static D3DBackBufferSurfaceData

    70         createData(int width, int height,

    71                    ColorModel cm, GraphicsConfiguration gc,

    72                    Image image,

    73                    Win32SurfaceData parentData)

    74     {

    75         Win32GraphicsDevice gd = (Win32GraphicsDevice)gc.getDevice();

    76         if (!gd.isD3DEnabledOnDevice()) {

    77             return null;

    78         }

    79         SurfaceType sType = getSurfaceType(cm, Transparency.OPAQUE);

    80         return new

    81             D3DBackBufferSurfaceData(width, height,

    82                  getSurfaceType(gc, cm,

    83                                 D3DSurfaceData.D3D_ATTACHED_SURFACE),

    84                  cm, gc, image,

    85                  gd.getScreen(), parentData);

    86     }

    87 }