1 /* 2 * Copyright (c) 2011, 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.BufferCapabilities; 29 import static java.awt.BufferCapabilities.FlipContents.*; 30 import java.awt.Component; 31 import java.awt.GraphicsConfiguration; 32 import java.awt.image.ColorModel; 33 import java.awt.peer.ComponentPeer; 34 35 import sun.awt.AWTAccessor; 36 import sun.awt.AWTAccessor.ComponentAccessor; 37 import sun.awt.image.SunVolatileImage; 38 import sun.awt.image.VolatileSurfaceManager; 39 import sun.java2d.BackBufferCapsProvider; 40 import sun.java2d.SurfaceData; 41 import static sun.java2d.opengl.OGLContext.OGLContextCaps.*; 42 import sun.java2d.pipe.hw.ExtendedBufferCapabilities; 43 import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*; 44 45 public class CGLVolatileSurfaceManager extends VolatileSurfaceManager { 46 47 private final boolean accelerationEnabled; 48 49 public CGLVolatileSurfaceManager(SunVolatileImage vImg, Object context) { 50 super(vImg, context); 51 52 /* 53 * We will attempt to accelerate this image only under the 54 * following conditions: 55 * - the GraphicsConfig supports the FBO extension 56 */ 57 CGLGraphicsConfig gc = (CGLGraphicsConfig)vImg.getGraphicsConfig(); 58 accelerationEnabled = gc.isCapPresent(CAPS_EXT_FBOBJECT); 59 } 60 61 protected boolean isAccelerationEnabled() { 62 return accelerationEnabled; 63 } 64 65 /** 66 * Create a pbuffer-based SurfaceData object (or init the backbuffer 67 * of an existing window if this is a double buffered GraphicsConfig) 68 */ 69 protected SurfaceData initAcceleratedSurface() { 70 SurfaceData sData = null; 71 Component comp = vImg.getComponent(); 72 final ComponentAccessor acc = AWTAccessor.getComponentAccessor(); 73 final ComponentPeer peer = (comp != null) ? acc.getPeer(comp) : null; 74 75 try { 76 boolean createVSynced = false; 77 boolean forceback = false; 78 if (context instanceof Boolean) { 79 forceback = ((Boolean)context).booleanValue(); 80 if (forceback && peer instanceof BackBufferCapsProvider) { 81 BackBufferCapsProvider provider = 82 (BackBufferCapsProvider)peer; 83 BufferCapabilities caps = provider.getBackBufferCaps(); 84 if (caps instanceof ExtendedBufferCapabilities) { 85 ExtendedBufferCapabilities ebc = 86 (ExtendedBufferCapabilities)caps; 87 if (ebc.getVSync() == VSYNC_ON && 88 ebc.getFlipContents() == COPIED) 89 { 90 createVSynced = true; 91 forceback = false; 92 } 93 } 94 } 95 } 96 97 if (forceback) { 98 // peer must be non-null in this case 99 // TODO: modify parameter to delegate 100 // sData = CGLSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER); 101 } else { 102 CGLGraphicsConfig gc = 103 (CGLGraphicsConfig)vImg.getGraphicsConfig(); 104 ColorModel cm = gc.getColorModel(vImg.getTransparency()); 105 int type = vImg.getForcedAccelSurfaceType(); 106 // if acceleration type is forced (type != UNDEFINED) then 107 // use the forced type, otherwise choose FBOBJECT 108 if (type == OGLSurfaceData.UNDEFINED) { 109 type = OGLSurfaceData.FBOBJECT; 110 } 111 if (createVSynced) { 112 // TODO: modify parameter to delegate 113 // sData = CGLSurfaceData.createData(peer, vImg, type); 114 } else { 115 sData = CGLSurfaceData.createData(gc, 116 vImg.getWidth(), 117 vImg.getHeight(), 118 cm, vImg, type); 119 } 120 } 121 } catch (NullPointerException ex) { 122 sData = null; 123 } catch (OutOfMemoryError er) { 124 sData = null; 125 } 126 127 return sData; 128 } 129 130 @Override 131 protected boolean isConfigValid(GraphicsConfiguration gc) { 132 return ((gc == null) || (gc == vImg.getGraphicsConfig())); 133 } 134 135 @Override 136 public void initContents() { 137 if (vImg.getForcedAccelSurfaceType() != OGLSurfaceData.TEXTURE) { 138 super.initContents(); 139 } 140 } 141 } 142