1 /*
2 * Copyright (c) 2011, 2014, 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.image.SunVolatileImage;
37 import sun.awt.image.VolatileSurfaceManager;
38 import sun.java2d.BackBufferCapsProvider;
39 import sun.java2d.SurfaceData;
40 import static sun.java2d.opengl.OGLContext.OGLContextCaps.*;
41 import sun.java2d.pipe.hw.ExtendedBufferCapabilities;
42 import static sun.java2d.pipe.hw.AccelSurface.*;
43 import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*;
44
45 public class CGLVolatileSurfaceManager extends VolatileSurfaceManager {
46
47 private 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 image is opaque OR
56 * - the image is translucent AND
57 * - the GraphicsConfig supports the FBO extension OR
58 * - the GraphicsConfig has a stored alpha channel
59 */
60 int transparency = vImg.getTransparency();
61 CGLGraphicsConfig gc = (CGLGraphicsConfig)vImg.getGraphicsConfig();
62 accelerationEnabled =
63 (transparency == Transparency.OPAQUE) ||
64 ((transparency == Transparency.TRANSLUCENT) &&
65 (gc.isCapPresent(CAPS_EXT_FBOBJECT) ||
66 gc.isCapPresent(CAPS_STORED_ALPHA)));
67 }
68
69 protected boolean isAccelerationEnabled() {
70 return accelerationEnabled;
71 }
72
73 /**
74 * Create a pbuffer-based SurfaceData object (or init the backbuffer
75 * of an existing window if this is a double buffered GraphicsConfig)
76 */
77 @SuppressWarnings("deprecation")
78 protected SurfaceData initAcceleratedSurface() {
79 SurfaceData sData = null;
80 Component comp = vImg.getComponent();
81 final ComponentPeer peer = (comp != null) ? comp.getPeer() : null;
82
83 try {
84 boolean createVSynced = false;
85 boolean forceback = false;
86 if (context instanceof Boolean) {
87 forceback = ((Boolean)context).booleanValue();
88 if (forceback && peer instanceof BackBufferCapsProvider) {
89 BackBufferCapsProvider provider =
90 (BackBufferCapsProvider)peer;
91 BufferCapabilities caps = provider.getBackBufferCaps();
92 if (caps instanceof ExtendedBufferCapabilities) {
93 ExtendedBufferCapabilities ebc =
94 (ExtendedBufferCapabilities)caps;
95 if (ebc.getVSync() == VSYNC_ON &&
96 ebc.getFlipContents() == COPIED)
97 {
98 createVSynced = true;
99 forceback = false;
100 }
101 }
102 }
103 }
104
105 if (forceback) {
106 // peer must be non-null in this case
107 // TODO: modify parameter to delegate
108 // sData = CGLSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER);
109 } else {
110 CGLGraphicsConfig gc =
111 (CGLGraphicsConfig)vImg.getGraphicsConfig();
112 ColorModel cm = gc.getColorModel(vImg.getTransparency());
113 int type = vImg.getForcedAccelSurfaceType();
114 // if acceleration type is forced (type != UNDEFINED) then
115 // use the forced type, otherwise choose one based on caps
116 if (type == OGLSurfaceData.UNDEFINED) {
117 type = gc.isCapPresent(CAPS_EXT_FBOBJECT) ?
118 OGLSurfaceData.FBOBJECT : OGLSurfaceData.PBUFFER;
119 }
120 if (createVSynced) {
121 // TODO: modify parameter to delegate
122 // sData = CGLSurfaceData.createData(peer, vImg, type);
123 } else {
124 sData = CGLSurfaceData.createData(gc,
125 vImg.getWidth(),
126 vImg.getHeight(),
127 cm, vImg, type);
128 }
129 }
130 } catch (NullPointerException ex) {
131 sData = null;
132 } catch (OutOfMemoryError er) {
133 sData = null;
134 }
135
136 return sData;
137 }
138
139 @Override
140 protected boolean isConfigValid(GraphicsConfiguration gc) {
141 return ((gc == null) || (gc == vImg.getGraphicsConfig()));
142 }
143
144 @Override
145 public void initContents() {
146 if (vImg.getForcedAccelSurfaceType() != OGLSurfaceData.TEXTURE) {
147 super.initContents();
148 }
149 }
150 }
151