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.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
34 import sun.awt.AWTAccessor;
35 import sun.awt.AWTAccessor.ComponentAccessor;
36 import sun.awt.image.SunVolatileImage;
37 import sun.awt.image.VolatileSurfaceManager;
38 import sun.awt.windows.WComponentPeer;
39 import sun.java2d.SurfaceData;
40 import static sun.java2d.opengl.OGLContext.OGLContextCaps.*;
41 import static sun.java2d.pipe.hw.AccelSurface.*;
42 import sun.java2d.pipe.hw.ExtendedBufferCapabilities;
43 import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*;
44
45 public class WGLVolatileSurfaceManager extends VolatileSurfaceManager {
46
47 private final boolean accelerationEnabled;
48
49 public WGLVolatileSurfaceManager(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 WGLGraphicsConfig gc = (WGLGraphicsConfig)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;
71 Component comp = vImg.getComponent();
72 final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
73 WComponentPeer 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) {
81 BufferCapabilities caps = peer.getBackBufferCaps();
82 if (caps instanceof ExtendedBufferCapabilities) {
83 ExtendedBufferCapabilities ebc =
84 (ExtendedBufferCapabilities)caps;
85 if (ebc.getVSync() == VSYNC_ON &&
86 ebc.getFlipContents() == COPIED)
87 {
88 createVSynced = true;
89 forceback = false;
90 }
91 }
92 }
93 }
94
95 if (forceback) {
96 // peer must be non-null in this case
97 sData = WGLSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER);
98 } else {
99 WGLGraphicsConfig gc =
100 (WGLGraphicsConfig)vImg.getGraphicsConfig();
101 ColorModel cm = gc.getColorModel(vImg.getTransparency());
102 int type = vImg.getForcedAccelSurfaceType();
103 // if acceleration type is forced (type != UNDEFINED) then
104 // use the forced type, otherwise choose FBOBJECT
105 if (type == OGLSurfaceData.UNDEFINED) {
106 type = OGLSurfaceData.FBOBJECT;
107 }
108 if (createVSynced) {
109 sData = WGLSurfaceData.createData(peer, vImg, type);
110 } else {
111 sData = WGLSurfaceData.createData(gc,
112 vImg.getWidth(),
113 vImg.getHeight(),
114 cm, vImg, type);
115 }
116 }
117 } catch (NullPointerException ex) {
118 sData = null;
119 } catch (OutOfMemoryError er) {
120 sData = null;
121 }
122
123 return sData;
124 }
125
126 @Override
127 protected boolean isConfigValid(GraphicsConfiguration gc) {
128 return ((gc == null) ||
129 ((gc instanceof WGLGraphicsConfig) &&
130 (gc == vImg.getGraphicsConfig())));
131 }
132
133 @Override
134 public void initContents() {
135 if (vImg.getForcedAccelSurfaceType() != OGLSurfaceData.TEXTURE) {
136 super.initContents();
137 }
138 }
139 }