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/*
* 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 jogamp.opengl.x11.glx;
import javax.media.opengl.*;
public class GLXUtil {
public static String getExtension(long display) {
return GLX.glXGetClientString(display, GLX.GLX_EXTENSIONS);
}
public static boolean isMultisampleAvailable(String extensions) {
if (extensions != null) {
return (extensions.indexOf("GLX_ARB_multisample") >= 0);
}
return false;
}
public static boolean isMultisampleAvailable(long display) {
return isMultisampleAvailable(getExtension(display));
}
/** Workaround for apparent issue with ATI's proprietary drivers
where direct contexts still send GLX tokens for GL calls */
public static String getVendorName(long display) {
return GLX.glXGetClientString(display, GLX.GLX_VENDOR);
}
public static boolean isVendorNVIDIA(String vendor) {
return vendor != null && vendor.startsWith("NVIDIA") ;
}
public static boolean isVendorATI(String vendor) {
return vendor != null && vendor.startsWith("ATI") ;
}
public static boolean isVendorATI(long display) {
return isVendorATI(getVendorName(display));
}
public static boolean isVendorNVIDIA(long display) {
return isVendorNVIDIA(getVendorName(display));
}
public static void getGLXVersion(long display, int major[], int minor[]) {
if(0 == display) {
throw new GLException("null display handle");
}
if(major.length<1||minor.length<1) {
throw new GLException("passed int arrays size is not >= 1");
}
if (!GLX.glXQueryVersion(display, major, 0, minor, 0)) {
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[0] == 1 && minor[0] == 2) {
String str = GLX.glXGetClientString(display, GLX.GLX_VERSION);
try {
// e.g. "1.3"
major[0] = Integer.valueOf(str.substring(0, 1)).intValue();
minor[0] = Integer.valueOf(str.substring(2, 3)).intValue();
} catch (Exception e) {
major[0] = 1;
minor[0] = 2;
}
}
}
}
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