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.Transparency; 33 import java.awt.image.ColorModel; 34 import java.awt.peer.ComponentPeer; 35 36 import sun.awt.AWTAccessor; 37 import sun.awt.AWTAccessor.ComponentAccessor; 38 import sun.awt.image.SunVolatileImage; 39 import sun.awt.image.VolatileSurfaceManager; 40 import sun.java2d.BackBufferCapsProvider; 41 import sun.java2d.SurfaceData; 42 import static sun.java2d.opengl.OGLContext.OGLContextCaps.*; 43 import sun.java2d.pipe.hw.ExtendedBufferCapabilities; 44 import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*; 45 46 public class CGLVolatileSurfaceManager extends VolatileSurfaceManager { 47 48 private boolean accelerationEnabled; 49 50 public CGLVolatileSurfaceManager(SunVolatileImage vImg, Object context) { 51 super(vImg, context); 52 53 /* 54 * We will attempt to accelerate this image only under the 55 * following conditions: 56 * - the image is opaque OR 57 * - the image is translucent AND 58 * - the GraphicsConfig supports the FBO extension OR 59 * - the GraphicsConfig has a stored alpha channel 60 */ 61 int transparency = vImg.getTransparency(); 62 CGLGraphicsConfig gc = (CGLGraphicsConfig)vImg.getGraphicsConfig(); 63 accelerationEnabled = 64 (transparency == Transparency.OPAQUE) || 65 ((transparency == Transparency.TRANSLUCENT) && 66 (gc.isCapPresent(CAPS_EXT_FBOBJECT) || 67 gc.isCapPresent(CAPS_STORED_ALPHA))); 68 } 69 70 protected boolean isAccelerationEnabled() { 71 return accelerationEnabled; 72 } 73 74 /** 75 * Create a pbuffer-based SurfaceData object (or init the backbuffer 76 * of an existing window if this is a double buffered GraphicsConfig) 77 */ 78 protected SurfaceData initAcceleratedSurface() { 79 SurfaceData sData = null; 80 Component comp = vImg.getComponent(); 81 final ComponentAccessor acc = AWTAccessor.getComponentAccessor(); 82 final ComponentPeer peer = (comp != null) ? acc.getPeer(comp) : null; 83 84 try { 85 boolean createVSynced = false; 86 boolean forceback = false; 87 if (context instanceof Boolean) { 88 forceback = ((Boolean)context).booleanValue(); 89 if (forceback && peer instanceof BackBufferCapsProvider) { 90 BackBufferCapsProvider provider = 91 (BackBufferCapsProvider)peer; 92 BufferCapabilities caps = provider.getBackBufferCaps(); 93 if (caps instanceof ExtendedBufferCapabilities) { 94 ExtendedBufferCapabilities ebc = 95 (ExtendedBufferCapabilities)caps; 96 if (ebc.getVSync() == VSYNC_ON && 97 ebc.getFlipContents() == COPIED) 98 { 99 createVSynced = true; 100 forceback = false; 101 } 102 } 103 } 104 } 105 106 if (forceback) { 107 // peer must be non-null in this case 108 // TODO: modify parameter to delegate 109 // sData = CGLSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER); 110 } else { 111 CGLGraphicsConfig gc = 112 (CGLGraphicsConfig)vImg.getGraphicsConfig(); 113 ColorModel cm = gc.getColorModel(vImg.getTransparency()); 114 int type = vImg.getForcedAccelSurfaceType(); 115 // if acceleration type is forced (type != UNDEFINED) then 116 // use the forced type, otherwise choose one based on caps 117 if (type == OGLSurfaceData.UNDEFINED) { 118 type = gc.isCapPresent(CAPS_EXT_FBOBJECT) ? 119 OGLSurfaceData.FBOBJECT : OGLSurfaceData.PBUFFER; 120 } 121 if (createVSynced) { 122 // TODO: modify parameter to delegate 123 // sData = CGLSurfaceData.createData(peer, vImg, type); 124 } else { 125 sData = CGLSurfaceData.createData(gc, 126 vImg.getWidth(), 127 vImg.getHeight(), 128 cm, vImg, type); 129 } 130 } 131 } catch (NullPointerException ex) { 132 sData = null; 133 } catch (OutOfMemoryError er) { 134 sData = null; 135 } 136 137 return sData; 138 } 139 140 @Override 141 protected boolean isConfigValid(GraphicsConfiguration gc) { 142 return ((gc == null) || (gc == vImg.getGraphicsConfig())); 143 } 144 145 @Override 146 public void initContents() { 147 if (vImg.getForcedAccelSurfaceType() != OGLSurfaceData.TEXTURE) { 148 super.initContents(); 149 } 150 } 151 } 152