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 final 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 not bitmask AND the GraphicsConfig supports the FBO
58 * extension
59 */
60 int transparency = vImg.getTransparency();
61 GLXGraphicsConfig gc = (GLXGraphicsConfig) vImg.getGraphicsConfig();
62 accelerationEnabled = gc.isCapPresent(CAPS_EXT_FBOBJECT)
63 && transparency != Transparency.BITMASK;
64 }
65
66 protected boolean isAccelerationEnabled() {
67 return accelerationEnabled;
68 }
69
70 /**
71 * Create a FBO-based SurfaceData object (or init the backbuffer
72 * of an existing window if this is a double buffered GraphicsConfig)
73 */
74 protected SurfaceData initAcceleratedSurface() {
75 SurfaceData sData;
76 Component comp = vImg.getComponent();
77 final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
78 X11ComponentPeer peer = (comp != null) ? acc.getPeer(comp) : null;
79
80 try {
81 boolean createVSynced = false;
82 boolean forceback = false;
83 if (context instanceof Boolean) {
84 forceback = ((Boolean)context).booleanValue();
85 if (forceback && peer instanceof BackBufferCapsProvider) {
86 BackBufferCapsProvider provider =
87 (BackBufferCapsProvider)peer;
88 BufferCapabilities caps = provider.getBackBufferCaps();
89 if (caps instanceof ExtendedBufferCapabilities) {
90 ExtendedBufferCapabilities ebc =
91 (ExtendedBufferCapabilities)caps;
92 if (ebc.getVSync() == VSYNC_ON &&
93 ebc.getFlipContents() == COPIED)
94 {
95 createVSynced = true;
96 forceback = false;
97 }
98 }
99 }
100 }
101
102 if (forceback) {
103 // peer must be non-null in this case
104 sData = GLXSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER);
105 } else {
106 GLXGraphicsConfig gc =
107 (GLXGraphicsConfig)vImg.getGraphicsConfig();
108 ColorModel cm = gc.getColorModel(vImg.getTransparency());
109 int type = vImg.getForcedAccelSurfaceType();
110 // if acceleration type is forced (type != UNDEFINED) then
111 // use the forced type, otherwise choose FBOBJECT
112 if (type == OGLSurfaceData.UNDEFINED) {
113 type = OGLSurfaceData.FBOBJECT;
114 }
115 if (createVSynced) {
116 sData = GLXSurfaceData.createData(peer, vImg, type);
117 } else {
118 sData = GLXSurfaceData.createData(gc,
119 vImg.getWidth(),
120 vImg.getHeight(),
121 cm, vImg, type);
122 }
123 }
124 } catch (NullPointerException ex) {
125 sData = null;
126 } catch (OutOfMemoryError er) {
127 sData = null;
128 }
129
130 return sData;
131 }
132
133 @Override
134 protected boolean isConfigValid(GraphicsConfiguration gc) {
135 return ((gc == null) || (gc == vImg.getGraphicsConfig()));
136 }
137
138 @Override
139 public void initContents() {
140 if (vImg.getForcedAccelSurfaceType() != OGLSurfaceData.TEXTURE) {
141 super.initContents();
142 }
143 }
144 }