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
|
/*
* Copyright (c) 2008 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.
*/
package com.sun.nwi.impl.x11;
import javax.media.nwi.*;
import com.sun.nwi.impl.*;
public class X11Util {
static {
NativeLibLoaderBase.loadNWI("x11");
}
private static final boolean DEBUG = Debug.debug("X11Util");
private X11Util() {}
// Display connection for use by visual selection algorithm and by all offscreen surfaces
private static long staticDisplay=0;
private static boolean xineramaEnabled=false;
public static long getDisplayConnection() {
if (staticDisplay == 0) {
NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
try {
staticDisplay = X11Lib.XOpenDisplay(null);
if (staticDisplay != 0) {
xineramaEnabled = X11Lib.XineramaEnabled(staticDisplay);
}
} finally {
NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
}
if (staticDisplay == 0) {
throw new NWException("Unable to open default display");
}
}
return staticDisplay;
}
public static boolean isXineramaEnabled() {
if (staticDisplay == 0) {
getDisplayConnection(); // will set xineramaEnabled
}
return xineramaEnabled;
}
}
|
