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Java™ Binding for the OpenGL® API
/*
* 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 javax.media.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;
}