1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package com.sun.opengl.impl;
import java.util.*;
import javax.media.opengl.*;
/** Encapsulates the implementation of most of the GLAutoDrawable's
methods to be able to share it between GLCanvas and GLJPanel. */
public class GLDrawableHelper {
private volatile List listeners = new ArrayList();
private static final boolean DEBUG = Debug.debug("GLDrawableHelper");
private static final boolean VERBOSE = Debug.verbose();
private static final boolean NVIDIA_CRASH_WORKAROUND = Debug.isPropertyDefined("jogl.nvidia.crash.workaround", true);
private boolean autoSwapBufferMode = true;
public GLDrawableHelper() {
}
public synchronized String toString() {
StringBuffer sb = new StringBuffer();
sb.append("GLEventListeners num "+listeners.size()+" [");
for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
sb.append(iter.next()+", ");
}
sb.append("]");
return sb.toString();
}
public synchronized void addGLEventListener(GLEventListener listener) {
List newListeners = (List) ((ArrayList) listeners).clone();
newListeners.add(listener);
listeners = newListeners;
}
public synchronized void removeGLEventListener(GLEventListener listener) {
List newListeners = (List) ((ArrayList) listeners).clone();
newListeners.remove(listener);
listeners = newListeners;
}
public synchronized void dispose(GLAutoDrawable drawable) {
for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
((GLEventListener) iter.next()).dispose(drawable);
}
}
public void init(GLAutoDrawable drawable) {
for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
((GLEventListener) iter.next()).init(drawable);
}
}
public void display(GLAutoDrawable drawable) {
for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
((GLEventListener) iter.next()).display(drawable);
}
}
public void reshape(GLAutoDrawable drawable,
int x, int y, int width, int height) {
for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
((GLEventListener) iter.next()).reshape(drawable, x, y, width, height);
}
}
public void setAutoSwapBufferMode(boolean onOrOff) {
autoSwapBufferMode = onOrOff;
}
public boolean getAutoSwapBufferMode() {
return autoSwapBufferMode;
}
private static final ThreadLocal perThreadInitAction = new ThreadLocal();
/** Principal helper method which runs a Runnable with the context
made current. This could have been made part of GLContext, but a
desired goal is to be able to implement the GLCanvas in terms of
the GLContext's public APIs, and putting it into a separate
class helps ensure that we don't inadvertently use private
methods of the GLContext or its implementing classes. */
public void invokeGL(GLDrawable drawable,
GLContext context,
Runnable runnable,
Runnable initAction) {
if(null==context) {
if (DEBUG) {
Exception e = new GLException(Thread.currentThread().getName()+" GLDrawableHelper " + this + ".invokeGL(): NULL GLContext");
e.printStackTrace();
}
return;
}
// Support for recursive makeCurrent() calls as well as calling
// other drawables' display() methods from within another one's
GLContext lastContext = GLContext.getCurrent();
Runnable lastInitAction = (Runnable) perThreadInitAction.get();
if (lastContext != null) {
lastContext.release();
}
int res = 0;
try {
res = context.makeCurrent();
if (res != GLContext.CONTEXT_NOT_CURRENT) {
if(null!=initAction) {
perThreadInitAction.set(initAction);
if (res == GLContext.CONTEXT_CURRENT_NEW) {
if (DEBUG) {
System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running initAction");
}
initAction.run();
}
}
if(null!=runnable) {
if (DEBUG && VERBOSE) {
System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running runnable");
}
runnable.run();
if (autoSwapBufferMode) {
if (drawable != null) {
drawable.swapBuffers();
}
}
}
}
} finally {
try {
if (res != GLContext.CONTEXT_NOT_CURRENT) {
context.release();
}
} catch (Exception e) {
}
if (lastContext != null) {
int res2 = lastContext.makeCurrent();
if (res2 == GLContext.CONTEXT_CURRENT_NEW) {
lastInitAction.run();
}
}
}
}
}
|
