aboutsummaryrefslogtreecommitdiffstats
path: root/src/jogl/classes/jogamp/opengl/x11/glx/GLXUtil.java
blob: b8d803338e09fd151293b79d29620f73cee5496b (plain)
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
/*
 * Copyright (c) 2008 Sun Microsystems, Inc. All Rights Reserved.
 * Copyright (c) 2010 JogAmp Community. 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 jogamp.opengl.x11.glx;

import java.nio.IntBuffer;

import com.jogamp.opengl.GLException;

import jogamp.opengl.Debug;

import com.jogamp.common.nio.Buffers;
import com.jogamp.common.util.VersionNumber;
import com.jogamp.nativewindow.x11.X11GraphicsDevice;

public class GLXUtil {
    public static final boolean DEBUG = Debug.debug("GLXUtil");

    public static synchronized boolean isGLXAvailableOnServer(final X11GraphicsDevice x11Device) {
        if(null == x11Device) {
            throw new IllegalArgumentException("null X11GraphicsDevice");
        }
        if(0 == x11Device.getHandle()) {
            throw new IllegalArgumentException("null X11GraphicsDevice display handle");
        }
        boolean glXAvailable = false;
        x11Device.lock();
        try {
            glXAvailable = GLX.glXQueryExtension(x11Device.getHandle(), null, null);
        } catch (final Throwable t) { /* n/a */
        } finally {
            x11Device.unlock();
        }
        return glXAvailable;
    }

    public static String getGLXClientString(final X11GraphicsDevice x11Device, final int name) {
        x11Device.lock();
        try {
            return GLX.glXGetClientString(x11Device.getHandle(), name);
        } finally {
            x11Device.unlock();
        }
    }
    public static String queryGLXServerString(final X11GraphicsDevice x11Device, final int screen_idx, final int name) {
        x11Device.lock();
        try {
            return GLX.glXQueryServerString(x11Device.getHandle(), screen_idx, name);
        } finally {
            x11Device.unlock();
        }
    }
    public static String queryGLXExtensionsString(final X11GraphicsDevice x11Device, final int screen_idx) {
        x11Device.lock();
        try {
            return GLX.glXQueryExtensionsString(x11Device.getHandle(), screen_idx);
        } finally {
            x11Device.unlock();
        }
    }

    public static VersionNumber getGLXServerVersionNumber(final X11GraphicsDevice x11Device) {
        final IntBuffer major = Buffers.newDirectIntBuffer(1);
        final IntBuffer minor = Buffers.newDirectIntBuffer(1);

        x11Device.lock();
        try {
            if (!GLX.glXQueryVersion(x11Device.getHandle(), major, minor)) {
              throw new GLException("glXQueryVersion failed");
            }

            // Work around bugs in ATI's Linux drivers where they report they
            // only implement GLX version 1.2 on the server side
            if (major.get(0) == 1 && minor.get(0) == 2) {
              final String str = GLX.glXGetClientString(x11Device.getHandle(), GLX.GLX_VERSION);
              try {
                  // e.g. "1.3"
                  major.put(0, Integer.parseInt(str.substring(0, 1)));
                  minor.put(0, Integer.parseInt(str.substring(2, 3)));
              } catch (final Exception e) {
                  major.put(0, 1);
                  minor.put(0, 2);
              }
            }
        } finally {
            x11Device.unlock();
        }
        return new VersionNumber(major.get(0), minor.get(0), 0);
    }

    public static boolean isMultisampleAvailable(final String extensions) {
        if (extensions != null) {
            return (extensions.indexOf("GLX_ARB_multisample") >= 0);
        }
        return false;
    }

    public static boolean isVendorNVIDIA(final String vendor) {
        return vendor != null && vendor.startsWith("NVIDIA") ;
    }

    public static boolean isVendorATI(final String vendor) {
        return vendor != null && vendor.startsWith("ATI") ;
    }

    public static boolean isClientMultisampleAvailable() {
        return clientMultisampleAvailable;
    }
    public static String getClientVendorName() {
        return clientVendorName;
    }
    public static VersionNumber getClientVersionNumber() {
        return clientVersionNumber;
    }

    public static synchronized void initGLXClientDataSingleton(final X11GraphicsDevice x11Device) {
        if(null != clientVendorName) {
            return; // already initialized
        }
        if(null == x11Device) {
            throw new IllegalArgumentException("null X11GraphicsDevice");
        }
        if(0 == x11Device.getHandle()) {
            throw new IllegalArgumentException("null X11GraphicsDevice display handle");
        }
        clientMultisampleAvailable = isMultisampleAvailable(GLX.glXGetClientString(x11Device.getHandle(), GLX.GLX_EXTENSIONS));
        clientVendorName = GLX.glXGetClientString(x11Device.getHandle(), GLX.GLX_VENDOR);

        final int[] major = new int[1];
        final int[] minor = new int[1];
        final String str = GLX.glXGetClientString(x11Device.getHandle(), GLX.GLX_VERSION);
        try {
              // e.g. "1.3"
              major[0] = Integer.parseInt(str.substring(0, 1));
              minor[0] = Integer.parseInt(str.substring(2, 3));
        } catch (final Exception e) {
              major[0] = 1;
              minor[0] = 2;
        }
        clientVersionNumber = new VersionNumber(major[0], minor[0], 0);
    }
    private static boolean clientMultisampleAvailable = false;
    private static String clientVendorName = null;
    private static VersionNumber clientVersionNumber = null;
}