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) 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.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package com.sun.opengl.impl.egl;
import com.sun.opengl.impl.GLDrawableImpl;
import javax.media.opengl.*;
public class EGLDrawable extends GLDrawableImpl {
private GLCapabilitiesChooser chooser;
private long display;
private _EGLConfig config;
private long surface;
private int[] tmp = new int[1];
public EGLDrawable(EGLDrawableFactory factory,
NativeWindow component,
GLCapabilities capabilities,
GLCapabilitiesChooser chooser) throws GLException {
super(factory, component, false);
setChosenGLCapabilities(capabilities);
this.chooser = chooser;
surface=EGL.EGL_NO_SURFACE;
display = EGL.eglGetDisplay((0!=component.getDisplayHandle())?component.getDisplayHandle():EGL.EGL_DEFAULT_DISPLAY);
if (display == EGL.EGL_NO_DISPLAY) {
throw new GLException("eglGetDisplay failed");
}
if (!EGL.eglInitialize(display, null, null)) {
throw new GLException("eglInitialize failed");
}
int[] attrs = factory.glCapabilities2AttribList(capabilities);
_EGLConfig[] configs = new _EGLConfig[1];
int[] numConfigs = new int[1];
if (!EGL.eglChooseConfig(display,
attrs, 0,
configs, 1,
numConfigs, 0)) {
throw new GLException("Graphics configuration selection (eglChooseConfig) failed");
}
if (numConfigs[0] == 0) {
throw new GLException("No valid graphics configuration selected from eglChooseConfig");
}
config = configs[0];
}
public long getDisplay() {
return display;
}
public void destroy() {
setRealized(false);
if(EGL.EGL_NO_DISPLAY!=display) {
EGL.eglTerminate(display);
display=EGL.EGL_NO_DISPLAY;
}
super.destroy();
}
public _EGLConfig getConfig() {
return config;
}
public long getSurface() {
return surface;
}
protected void setSurface() {
if (EGL.EGL_NO_SURFACE==surface) {
try {
lockSurface();
// Create the window surface
surface = EGL.eglCreateWindowSurface(display, config, component.getWindowHandle(), null);
if (EGL.EGL_NO_SURFACE==surface) {
throw new GLException("Creation of window surface (eglCreateWindowSurface) failed, component: "+component);
}
} finally {
unlockSurface();
}
}
}
public GLContext createContext(GLContext shareWith) {
return new EGLContext(this, shareWith);
}
public void setRealized(boolean realized) {
if (realized) {
// setSurface();
} else if( surface != EGL.EGL_NO_SURFACE ) {
// Destroy the window surface
// FIXME: we should expose a destroy() method on
// GLDrawable and get rid of setRealized(), instead
// destroying and re-creating the GLDrawable associated
// with for example a GLCanvas each time
if (!EGL.eglDestroySurface(display, surface)) {
throw new GLException("Error destroying window surface (eglDestroySurface)");
}
surface = EGL.EGL_NO_SURFACE;
}
super.setRealized(realized);
}
public void setSize(int width, int height) {
// FIXME: anything to do here?
}
public int getWidth() {
if (!EGL.eglQuerySurface(display, surface, EGL.EGL_WIDTH, tmp, 0)) {
throw new GLException("Error querying surface width");
}
return tmp[0];
}
public int getHeight() {
if (!EGL.eglQuerySurface(display, surface, EGL.EGL_HEIGHT, tmp, 0)) {
throw new GLException("Error querying surface height");
}
return tmp[0];
}
public void swapBuffers() throws GLException {
getFactory().lockToolkit();
try {
if (component.getSurfaceHandle() == 0) {
if (lockSurface() == NativeWindow.LOCK_SURFACE_NOT_READY) {
return;
}
}
EGL.eglSwapBuffers(display, surface);
} finally {
unlockSurface();
getFactory().unlockToolkit();
}
}
public String toString() {
return "EGLDrawable[ realized "+getRealized()+
", window "+getNativeWindow()+
", egl display " + display +
", egl config " + config +
", egl surface " + surface +
", factory "+getFactory()+"]";
}
}
|
