1 files changed, 102 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/GLXUtil.java b/src/jogl/classes/jogamp/opengl/x11/glx/GLXUtil.java
new file mode 100644
index 000000000..46bc9460d
--- /dev/null
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/GLXUtil.java
@@ -0,0 +1,102 @@
+/*
+ * 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 com.jogamp.opengl.impl.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;
+          }
+        }
+    }
+}