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
|
/*
* 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.x11;
import java.awt.Component;
import javax.media.opengl.*;
import com.sun.opengl.impl.*;
public abstract class X11GLDrawable extends GLDrawableImpl {
protected static final boolean DEBUG = Debug.debug("X11GLDrawable");
protected long display;
protected long drawable;
protected long visualID;
protected Component component;
protected GLCapabilities capabilities;
protected GLCapabilitiesChooser chooser;
public X11GLDrawable(Component component,
GLCapabilities capabilities,
GLCapabilitiesChooser chooser) {
this.component = component;
this.capabilities = (capabilities == null) ? null :
((GLCapabilities) capabilities.clone());
this.chooser = chooser;
}
public void setRealized(boolean val) {
throw new GLException("Should not call this (should only be called for onscreen GLDrawables)");
}
public void destroy() {
throw new GLException("Should not call this (should only be called for offscreen GLDrawables)");
}
public void swapBuffers() throws GLException {
}
public long getDisplay() {
return display;
}
public long getDrawable() {
return drawable;
}
//---------------------------------------------------------------------------
// Internals only below this point
//
protected XVisualInfo chooseVisual(boolean onscreen) {
if (display == 0) {
throw new GLException("null display");
}
// FIXME
if (onscreen) {
// The visual has already been chosen by the time we get here;
// it's specified by the GraphicsConfiguration of the
// GLCanvas. Fortunately, the JAWT supplies the visual ID for
// the component in a portable fashion, so all we have to do is
// use XGetVisualInfo with a VisualIDMask to get the
// corresponding XVisualInfo to pass into glXChooseVisual.
int[] count = new int[1];
XVisualInfo template = XVisualInfo.create();
// FIXME: probably not 64-bit clean
template.visualid((int) visualID);
lockToolkit();
XVisualInfo[] infos = GLX.XGetVisualInfo(display, GLX.VisualIDMask, template, count, 0);
unlockToolkit();
if (infos == null || infos.length == 0) {
throw new GLException("Error while getting XVisualInfo for visual ID " + visualID);
}
// FIXME: the storage for the infos array is leaked (should
// clean it up somehow when we're done with the visual we're
// returning)
return infos[0];
} else {
// It isn't clear to me whether we need this much code to handle
// the offscreen case, where we're creating a pixmap into which
// to render...this is what we (incorrectly) used to do for the
// onscreen case
int screen = 0; // FIXME: provide way to specify this?
XVisualInfo vis = null;
int[] count = new int[1];
XVisualInfo template = XVisualInfo.create();
template.screen(screen);
XVisualInfo[] infos = null;
GLCapabilities[] caps = null;
lockToolkit();
try {
infos = GLX.XGetVisualInfo(display, GLX.VisualScreenMask, template, count, 0);
if (infos == null) {
throw new GLException("Error while enumerating available XVisualInfos");
}
caps = new GLCapabilities[infos.length];
for (int i = 0; i < infos.length; i++) {
caps[i] = X11GLDrawableFactory.xvi2GLCapabilities(display, infos[i]);
}
} finally {
unlockToolkit();
}
int chosen = chooser.chooseCapabilities(capabilities, caps, -1);
if (chosen < 0 || chosen >= caps.length) {
throw new GLException("GLCapabilitiesChooser specified invalid index (expected 0.." + (caps.length - 1) + ")");
}
if (DEBUG) {
System.err.println("Chosen visual (" + chosen + "):");
System.err.println(caps[chosen]);
}
vis = infos[chosen];
if (vis == null) {
throw new GLException("GLCapabilitiesChooser chose an invalid visual");
}
// FIXME: the storage for the infos array is leaked (should
// clean it up somehow when we're done with the visual we're
// returning)
return vis;
}
}
// These synchronization primitives prevent the AWT from making
// requests from the X server asynchronously to this code.
protected void lockToolkit() {
X11GLDrawableFactory.lockToolkit();
}
protected void unlockToolkit() {
X11GLDrawableFactory.unlockToolkit();
}
}
|
