Fixed problems with lack of hardware acceleration on Linux

distributions using DRI drivers. Hacked around limitations of the
current DRI implementation by manually dlopen'ing libGL.so.1; avoids
changing glue code generation for core OpenGL 1.1 routines which do
not otherwise need to be called through function pointers on any
platform.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@614 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 19 insertions, 0 deletions

diff --git a/src/classes/com/sun/opengl/impl/NativeLibLoader.java b/src/classes/com/sun/opengl/impl/NativeLibLoader.java
index 1a3d5c277..9331b2f72 100644
--- a/src/classes/com/sun/opengl/impl/NativeLibLoader.java
+++ b/src/classes/com/sun/opengl/impl/NativeLibLoader.java
@@ -55,6 +55,7 @@ public class NativeLibLoader {
 
   private static volatile boolean loadedCore = false;
   private static volatile boolean loadedAWTImpl = false;
+  private static volatile boolean loadedDRIHack = false;
 
   public static void loadCore() {
     if (doLoading && !loadedCore) {
@@ -104,4 +105,22 @@ public class NativeLibLoader {
       }
     }
   }
+
+  // See DRIHack.java in com/sun/opengl/impl/x11/ for description of
+  // why this is needed
+  public static void loadDRIHack() {
+    if (doLoading && !loadedDRIHack) {
+      synchronized (NativeLibLoader.class) {
+        if (!loadedDRIHack) {
+          AccessController.doPrivileged(new PrivilegedAction() {
+              public Object run() {
+                System.loadLibrary("jogl_drihack");
+                return null;
+              }
+            });
+          loadedDRIHack = true;
+        }
+      }
+    }
+  }
 }