|
1 /* |
|
2 * Copyright (c) 2004, 2010, 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.image.SunVolatileImage; |
|
35 import sun.awt.image.VolatileSurfaceManager; |
|
36 import sun.awt.windows.WComponentPeer; |
|
37 import sun.java2d.SurfaceData; |
|
38 import static sun.java2d.opengl.OGLContext.OGLContextCaps.*; |
|
39 import static sun.java2d.pipe.hw.AccelSurface.*; |
|
40 import sun.java2d.pipe.hw.ExtendedBufferCapabilities; |
|
41 import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*; |
|
42 |
|
43 public class WGLVolatileSurfaceManager |
|
44 extends VolatileSurfaceManager |
|
45 { |
|
46 private boolean accelerationEnabled; |
|
47 |
|
48 public WGLVolatileSurfaceManager(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 WGLGraphicsConfig gc = (WGLGraphicsConfig)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 protected SurfaceData initAcceleratedSurface() { |
|
77 SurfaceData sData; |
|
78 Component comp = vImg.getComponent(); |
|
79 WComponentPeer peer = |
|
80 (comp != null) ? (WComponentPeer)comp.getPeer() : null; |
|
81 |
|
82 try { |
|
83 boolean createVSynced = false; |
|
84 boolean forceback = false; |
|
85 if (context instanceof Boolean) { |
|
86 forceback = ((Boolean)context).booleanValue(); |
|
87 if (forceback) { |
|
88 BufferCapabilities caps = peer.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 = WGLSurfaceData.createData(peer, vImg, FLIP_BACKBUFFER); |
|
105 } else { |
|
106 WGLGraphicsConfig gc = |
|
107 (WGLGraphicsConfig)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 one based on caps |
|
112 if (type == OGLSurfaceData.UNDEFINED) { |
|
113 type = gc.isCapPresent(CAPS_EXT_FBOBJECT) ? |
|
114 OGLSurfaceData.FBOBJECT : OGLSurfaceData.PBUFFER; |
|
115 } |
|
116 if (createVSynced) { |
|
117 sData = WGLSurfaceData.createData(peer, vImg, type); |
|
118 } else { |
|
119 sData = WGLSurfaceData.createData(gc, |
|
120 vImg.getWidth(), |
|
121 vImg.getHeight(), |
|
122 cm, vImg, type); |
|
123 } |
|
124 } |
|
125 } catch (NullPointerException ex) { |
|
126 sData = null; |
|
127 } catch (OutOfMemoryError er) { |
|
128 sData = null; |
|
129 } |
|
130 |
|
131 return sData; |
|
132 } |
|
133 |
|
134 @Override |
|
135 protected boolean isConfigValid(GraphicsConfiguration gc) { |
|
136 return ((gc == null) || |
|
137 ((gc instanceof WGLGraphicsConfig) && |
|
138 (gc == vImg.getGraphicsConfig()))); |
|
139 } |
|
140 |
|
141 @Override |
|
142 public void initContents() { |
|
143 if (vImg.getForcedAccelSurfaceType() != OGLSurfaceData.TEXTURE) { |
|
144 super.initContents(); |
|
145 } |
|
146 } |
|
147 } |