1 /*
   2  * Copyright (c) 2004, 2015, Oracle and/or its affiliates. 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.java2d.opengl;
  27 
  28 import java.awt.Component;
  29 import java.awt.GraphicsConfiguration;
  30 import java.awt.GraphicsDevice;
  31 import java.awt.GraphicsEnvironment;
  32 import java.awt.Image;
  33 import java.awt.Rectangle;

  34 import java.awt.image.ColorModel;
  35 import sun.awt.SunToolkit;

  36 import sun.awt.windows.WComponentPeer;
  37 import sun.java2d.SurfaceData;
  38 
  39 public abstract class WGLSurfaceData extends OGLSurfaceData {
  40 
  41     protected WComponentPeer peer;
  42     private WGLGraphicsConfig graphicsConfig;


  43 
  44     private native void initOps(long pConfigInfo, WComponentPeer peer,
  45                                 long hwnd);
  46 
  47     protected WGLSurfaceData(WComponentPeer peer, WGLGraphicsConfig gc,
  48                              ColorModel cm, int type)
  49     {
  50         super(gc, cm, type);
  51         this.peer = peer;
  52         this.graphicsConfig = gc;



  53 
  54         long pConfigInfo = gc.getNativeConfigInfo();
  55         long hwnd = peer != null ? peer.getHWnd() : 0L;
  56 
  57         initOps(pConfigInfo, peer, hwnd);
  58     }
  59 










  60     public GraphicsConfiguration getDeviceConfiguration() {
  61         return graphicsConfig;
  62     }
  63 
  64     /**
  65      * Creates a SurfaceData object representing the primary (front) buffer
  66      * of an on-screen Window.
  67      */
  68     public static WGLWindowSurfaceData createData(WComponentPeer peer) {
  69         // the OGL pipeline can render directly to the screen and interfere
  70         // with layered windows, which is why we don't allow accelerated
  71         // surfaces in this case
  72         if (!peer.isAccelCapable() ||
  73             !SunToolkit.isContainingTopLevelOpaque((Component)peer.getTarget()))
  74         {
  75             return null;
  76         }
  77         WGLGraphicsConfig gc = getGC(peer);
  78         return new WGLWindowSurfaceData(peer, gc);
  79     }
  80 
  81     /**
  82      * Creates a SurfaceData object representing the back buffer of a
  83      * double-buffered on-screen Window.
  84      */
  85     public static WGLOffScreenSurfaceData createData(WComponentPeer peer,
  86                                                      Image image,
  87                                                      int type)
  88     {
  89         // the OGL pipeline can render directly to the screen and interfere
  90         // with layered windows, which is why we don't allow accelerated
  91         // surfaces in this case
  92         if (!peer.isAccelCapable() ||
  93             !SunToolkit.isContainingTopLevelOpaque((Component)peer.getTarget()))
  94         {
  95             return null;
  96         }
  97         WGLGraphicsConfig gc = getGC(peer);
  98         Rectangle r = peer.getBounds();
  99         if (type == FLIP_BACKBUFFER) {
 100             return new WGLOffScreenSurfaceData(peer, gc, r.width, r.height,
 101                                                image, peer.getColorModel(),
 102                                                type);
 103         } else {
 104             return new WGLVSyncOffScreenSurfaceData(peer, gc, r.width, r.height,
 105                                                     image, peer.getColorModel(),
 106                                                     type);
 107         }
 108     }
 109 
 110     /**
 111      * Creates a SurfaceData object representing an off-screen buffer (either
 112      * a Pbuffer or Texture).
 113      */
 114     public static WGLOffScreenSurfaceData createData(WGLGraphicsConfig gc,
 115                                                      int width, int height,
 116                                                      ColorModel cm,
 117                                                      Image image, int type)
 118     {
 119         return new WGLOffScreenSurfaceData(null, gc, width, height,
 120                                            image, cm, type);
 121     }
 122 
 123     public static WGLGraphicsConfig getGC(WComponentPeer peer) {
 124         if (peer != null) {
 125             return (WGLGraphicsConfig)peer.getGraphicsConfiguration();
 126         } else {
 127             // REMIND: this should rarely (never?) happen, but what if
 128             //         default config is not WGL?
 129             GraphicsEnvironment env =
 130                 GraphicsEnvironment.getLocalGraphicsEnvironment();
 131             GraphicsDevice gd = env.getDefaultScreenDevice();
 132             return (WGLGraphicsConfig)gd.getDefaultConfiguration();
 133         }
 134     }
 135 
 136     public static class WGLWindowSurfaceData extends WGLSurfaceData {
 137 
 138         public WGLWindowSurfaceData(WComponentPeer peer,
 139                                     WGLGraphicsConfig gc)
 140         {
 141             super(peer, gc, peer.getColorModel(), WINDOW);
 142         }
 143 
 144         public SurfaceData getReplacement() {
 145             return peer.getSurfaceData();
 146         }
 147 
 148         public Rectangle getBounds() {
 149             Rectangle r = peer.getBounds();
 150             r.x = r.y = 0;


 151             return r;
 152         }
 153 
 154         /**
 155          * Returns destination Component associated with this SurfaceData.
 156          */
 157         public Object getDestination() {
 158             return peer.getTarget();
 159         }
 160     }
 161 
 162     /**
 163      * A surface which implements a v-synced flip back-buffer with COPIED
 164      * FlipContents.
 165      *
 166      * This surface serves as a back-buffer to the outside world, while
 167      * it is actually an offscreen surface. When the BufferStrategy this surface
 168      * belongs to is showed, it is first copied to the real private
 169      * FLIP_BACKBUFFER, which is then flipped.
 170      */
 171     public static class WGLVSyncOffScreenSurfaceData extends
 172         WGLOffScreenSurfaceData
 173     {
 174         private WGLOffScreenSurfaceData flipSurface;
 175 
 176         public WGLVSyncOffScreenSurfaceData(WComponentPeer peer,
 177                                             WGLGraphicsConfig gc,
 178                                             int width, int height,
 179                                             Image image, ColorModel cm,
 180                                             int type)
 181         {
 182             super(peer, gc, width, height, image, cm, type);
 183             flipSurface = WGLSurfaceData.createData(peer, image, FLIP_BACKBUFFER);
 184         }
 185 
 186         public SurfaceData getFlipSurface() {
 187             return flipSurface;
 188         }
 189 
 190         @Override
 191         public void flush() {
 192             flipSurface.flush();
 193             super.flush();
 194         }
 195 
 196     }
 197 
 198     public static class WGLOffScreenSurfaceData extends WGLSurfaceData {
 199 
 200         private Image offscreenImage;
 201         private int width, height;
 202 
 203         public WGLOffScreenSurfaceData(WComponentPeer peer,
 204                                        WGLGraphicsConfig gc,
 205                                        int width, int height,
 206                                        Image image, ColorModel cm,
 207                                        int type)
 208         {
 209             super(peer, gc, cm, type);
 210 
 211             this.width = width;
 212             this.height = height;
 213             offscreenImage = image;
 214 
 215             initSurface(width, height);
 216         }
 217 
 218         public SurfaceData getReplacement() {
 219             return restoreContents(offscreenImage);
 220         }
 221 
 222         public Rectangle getBounds() {
 223             if (type == FLIP_BACKBUFFER) {
 224                 Rectangle r = peer.getBounds();


 225                 r.x = r.y = 0;
 226                 return r;
 227             } else {
 228                 return new Rectangle(width, height);
 229             }
 230         }
 231 
 232         /**
 233          * Returns destination Image associated with this SurfaceData.
 234          */
 235         public Object getDestination() {
 236             return offscreenImage;
 237         }
 238     }
 239 
 240     /**
 241      * Updates the layered window with the contents of the surface.
 242      *
 243      * @param psdops pointer to the native ogl sd structure
 244      * @param peer pointer to the AwtWindow peer data
 245      * @param w width of the window
 246      * @param h height of the window
 247      * @see sun.awt.windows.TranslucentWindowPainter
 248      */
 249     public static native boolean updateWindowAccelImpl(long psdops,
 250                                                        WComponentPeer peer,
 251                                                        int w, int h);
 252 }
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