Made loading of GLU library lazier, partially in the hope that this

may address problems on certain Linux distributions where for some
reason we're falling back to software rendering with Mesa


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@595 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 11 insertions, 6 deletions

diff --git a/src/classes/com/sun/opengl/impl/windows/WindowsGLDrawableFactory.java b/src/classes/com/sun/opengl/impl/windows/WindowsGLDrawableFactory.java
index eab068bb4..94fd0eb1e 100644
--- a/src/classes/com/sun/opengl/impl/windows/WindowsGLDrawableFactory.java
+++ b/src/classes/com/sun/opengl/impl/windows/WindowsGLDrawableFactory.java
@@ -173,17 +173,22 @@ public class WindowsGLDrawableFactory extends GLDrawableFactoryImpl {
     return new WindowsExternalGLDrawable();
   }
 
+  public void loadGLULibrary() {
+    if (hglu32 == 0) {
+      hglu32 = WGL.LoadLibraryA("GLU32");
+      if (hglu32 == 0) {
+        throw new GLException("Error loading GLU32.DLL");
+      }
+    }
+  }
+
   public long dynamicLookupFunction(String glFuncName) {
     long res = WGL.wglGetProcAddress(glFuncName);
     if (res == 0) {
       // GLU routines aren't known to the OpenGL function lookup
-      if (hglu32 == 0) {
-        hglu32 = WGL.LoadLibraryA("GLU32");
-        if (hglu32 == 0) {
-          throw new GLException("Error loading GLU32.DLL");
-        }
+      if (hglu32 != 0) {
+        res = WGL.GetProcAddress(hglu32, glFuncName);
       }
-      res = WGL.GetProcAddress(hglu32, glFuncName);
     }
     return res;
   }