1 /*
2 * Copyright (c) 2003, 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
35 import sun.awt.AWTAccessor;
36 import sun.awt.AWTAccessor.ComponentAccessor;
37 import sun.awt.X11ComponentPeer;
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.AccelSurface.*;
45 import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*;
46
47 public class GLXVolatileSurfaceManager extends VolatileSurfaceManager {
48
49 private boolean accelerationEnabled;
50
51 public GLXVolatileSurfaceManager(SunVolatileImage vImg, Object context) {
52 super(vImg, context);
53
54 /*
55 * We will attempt to accelerate this image only under the
56 * following conditions:
57 * - the image is opaque OR
58 * - the image is translucent AND
59 * - the GraphicsConfig supports the FBO extension OR
60 * - the GraphicsConfig has a stored alpha channel
61 */
62 int transparency = vImg.getTransparency();
63 GLXGraphicsConfig gc = (GLXGraphicsConfig)vImg.getGraphicsConfig();
64 accelerationEnabled =
65 (transparency == Transparency.OPAQUE) ||
66 ((transparency == Transparency.TRANSLUCENT) &&
67 (gc.isCapPresent(CAPS_EXT_FBOBJECT) ||
68 gc.isCapPresent(CAPS_STORED_ALPHA)));
69 }
70
71 protected boolean isAccelerationEnabled() {
72 return accelerationEnabled;
73 }
74
75 /**
76 * Create a pbuffer-based SurfaceData object (or init the backbuffer
77 * of an existing window if this is a double buffered GraphicsConfig)
78 */
79 protected SurfaceData initAcceleratedSurface() {
80 SurfaceData sData;
81 Component comp = vImg.getComponent();
82 final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
83 X11ComponentPeer peer = (comp != null) ? acc.getPeer(comp) : null;
84
85 try {
86 boolean createVSynced = false;
87 boolean forceback = false;
88 if (context instanceof Boolean) {
89 forceback = ((Boolean)context).booleanValue();
90 if (forceback && peer instanceof BackBufferCapsProvider) {
91 BackBufferCapsProvider provider =
92 (BackBufferCapsProvider)peer;
93 BufferCapabilities caps = provider.getBackBufferCaps();
94 if (caps instanceof ExtendedBufferCapabilities) {
95 ExtendedBufferCapabilities ebc =
96 (ExtendedBufferCapabilities)caps;
97 if (ebc.getVSync() == VSYNC_ON &&
98 ebc.getFlipContents() == COPIED)
99 {
100 createVSynced = true;
101 forceback = false;
102 }
103 }
104 }
105 }
106
107 if (forceback) {
108 // peer must be non-null in this case
109 sData = GLXSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER);
110 } else {
111 GLXGraphicsConfig gc =
112 (GLXGraphicsConfig)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 sData = GLXSurfaceData.createData(peer, vImg, type);
123 } else {
124 sData = GLXSurfaceData.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 }