Fixed Issue 44: Add pbuffer-based GLJPanel implementation

Fixed Issue 61: Make debug variables load from system properties

Added a hardware acceleration path for GLJPanel implemented using the
GLPbuffer interfaces. If instantiation of the pbuffer fails, the
GLJPanel implementation attempts to catch the resulting exception and
fall back on the existing software rendering path.

The new code has been successfully tested on Windows. This checkin
attempts to make the needed changes to the pbuffer implementation on
other platforms, but the GLJPanel continues to use software rendering
until all platforms can be tested.

Additionally, references to static final DEBUG flags have been made
settable via system properties. "jogl.verbose" enables certain
printing statements. "jogl.debug" enables all debugging printing.
"jogl.debug.GLContext" enables the debug printing inside the GLContext
class. The system property names are chosen by convention and are not
enforced.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@209 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 87 insertions, 0 deletions

diff --git a/src/net/java/games/jogl/impl/Debug.java b/src/net/java/games/jogl/impl/Debug.java
new file mode 100755
index 000000000..ad0092a6f
--- /dev/null
+++ b/src/net/java/games/jogl/impl/Debug.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2003-2005 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
+ * MIDROSYSTEMS, 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.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package net.java.games.jogl.impl;
+
+import java.security.*;
+
+/** Helper routines for logging and debugging. */
+
+public class Debug {
+  // Some common properties
+  private static boolean verbose;
+  private static boolean debugAll;
+  
+  static {
+    verbose = isPropertyDefined("jogl.verbose");
+    debugAll = isPropertyDefined("jogl.debug");
+  }
+
+  public static boolean getBooleanProperty(final String property) {
+    Boolean b = (Boolean) AccessController.doPrivileged(new PrivilegedAction() {
+        public Object run() {
+          boolean val = Boolean.getBoolean(property);
+          return (val ? Boolean.TRUE : Boolean.FALSE);
+        }
+      });
+    return b.booleanValue();
+  }
+
+  public static boolean isPropertyDefined(final String property) {
+    Boolean b = (Boolean) AccessController.doPrivileged(new PrivilegedAction() {
+        public Object run() {
+          String val = System.getProperty(property);
+          return (val != null ? Boolean.TRUE : Boolean.FALSE);
+        }
+      });
+    return b.booleanValue();
+  }
+
+  public static boolean verbose() {
+    return verbose;
+  }
+
+  public static boolean debugAll() {
+    return debugAll;
+  }
+
+  public static boolean debug(String subcomponent) {
+    return debugAll() || isPropertyDefined("jogl.debug." + subcomponent);
+  }
+}