1 /*
2 * Copyright (c) 2003, 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 sun.awt.X11ComponentPeer;
35 import sun.awt.image.SunVolatileImage;
36 import sun.awt.image.VolatileSurfaceManager;
37 import sun.java2d.BackBufferCapsProvider;
38 import sun.java2d.SurfaceData;
39 import static sun.java2d.opengl.OGLContext.OGLContextCaps.*;
40 import sun.java2d.pipe.hw.ExtendedBufferCapabilities;
41 import static sun.java2d.pipe.hw.AccelSurface.*;
42 import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*;
43
44 public class GLXVolatileSurfaceManager extends VolatileSurfaceManager {
45
46 private boolean accelerationEnabled;
47
48 public GLXVolatileSurfaceManager(SunVolatileImage vImg, Object context) {
49 super(vImg, context);
50
51 /*
52 * We will attempt to accelerate this image only under the
53 * following conditions:
54 * - the image is opaque OR
55 * - the image is translucent AND
56 * - the GraphicsConfig supports the FBO extension OR
57 * - the GraphicsConfig has a stored alpha channel
58 */
59 int transparency = vImg.getTransparency();
60 GLXGraphicsConfig gc = (GLXGraphicsConfig)vImg.getGraphicsConfig();
61 accelerationEnabled =
62 (transparency == Transparency.OPAQUE) ||
63 ((transparency == Transparency.TRANSLUCENT) &&
64 (gc.isCapPresent(CAPS_EXT_FBOBJECT) ||
65 gc.isCapPresent(CAPS_STORED_ALPHA)));
66 }
67
68 protected boolean isAccelerationEnabled() {
69 return accelerationEnabled;
70 }
71
72 /**
73 * Create a pbuffer-based SurfaceData object (or init the backbuffer
74 * of an existing window if this is a double buffered GraphicsConfig)
75 */
76 @SuppressWarnings("deprecation")
77 protected SurfaceData initAcceleratedSurface() {
78 SurfaceData sData;
79 Component comp = vImg.getComponent();
80 X11ComponentPeer peer =
81 (comp != null) ? (X11ComponentPeer)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 sData = GLXSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER);
108 } else {
109 GLXGraphicsConfig gc =
110 (GLXGraphicsConfig)vImg.getGraphicsConfig();
111 ColorModel cm = gc.getColorModel(vImg.getTransparency());
112 int type = vImg.getForcedAccelSurfaceType();
113 // if acceleration type is forced (type != UNDEFINED) then
114 // use the forced type, otherwise choose one based on caps
115 if (type == OGLSurfaceData.UNDEFINED) {
116 type = gc.isCapPresent(CAPS_EXT_FBOBJECT) ?
117 OGLSurfaceData.FBOBJECT : OGLSurfaceData.PBUFFER;
118 }
119 if (createVSynced) {
120 sData = GLXSurfaceData.createData(peer, vImg, type);
121 } else {
122 sData = GLXSurfaceData.createData(gc,
123 vImg.getWidth(),
124 vImg.getHeight(),
125 cm, vImg, type);
126 }
127 }
128 } catch (NullPointerException ex) {
129 sData = null;
130 } catch (OutOfMemoryError er) {
131 sData = null;
132 }
133
134 return sData;
135 }
136
137 @Override
138 protected boolean isConfigValid(GraphicsConfiguration gc) {
139 return ((gc == null) || (gc == vImg.getGraphicsConfig()));
140 }
141
142 @Override
143 public void initContents() {
144 if (vImg.getForcedAccelSurfaceType() != OGLSurfaceData.TEXTURE) {
145 super.initContents();
146 }
147 }
148 }