JOGL: Unify library loading (impl and binding), incl. lookup ; GLAutoDrawable: dispose() calls only with created context.

- Using the EGL approach of DynamicLookupHelper,
  now generalized in abstract GLDynamicLookupHelper,
  DesktopGLDynamicLookupHelper and EGLGLDynamicLookupHelper.
  The implementation of these are self contained.

  - Sharing common code.
  - Unifying implementation and binding loading,
    as well as the function lookup within the impl libs.

- Removed DRIHack, since its no more required
  due to the new DesktopGLDynamicLookupHelper.

- Removed compile time link to GL and GLU libs

- Removed redundant library OS functions from X11/WGL
  bindings, GlueGen's common code is being used now.

- GLAutoDrawable: dispose() calls only with created context.
  This cleans up stack traces in case of eventual bugs,
  where context creation is not successful.

1 files changed, 81 insertions, 0 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/impl/DesktopGLDynamicLookupHelper.java b/src/jogl/classes/com/jogamp/opengl/impl/DesktopGLDynamicLookupHelper.java
new file mode 100755
index 000000000..f9858df62
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/DesktopGLDynamicLookupHelper.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2010, Sven Gothel
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions 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 Sven Gothel nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Sven Gothel BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.jogamp.opengl.impl;
+
+/**
+ * Abstract implementation of the DynamicLookupHelper for GL,
+ * which decouples it's dependencies to EGLDrawableFactory.
+ *
+ * Currently two implementations exist, one for ES1 and one for ES2.
+ */
+public abstract class DesktopGLDynamicLookupHelper extends GLDynamicLookupHelper {
+    private boolean hasGLBinding = false;
+    private boolean hasGLES12Binding = false;
+
+    public boolean hasGLBinding() { return hasGLBinding; }
+    public boolean hasGLES12Binding() { return hasGLES12Binding; }
+
+    protected void loadGLJNILibrary() {
+        Throwable t=null;
+
+        try {
+            GLJNILibLoader.loadGLDesktop();
+            hasGLBinding = true;
+        } catch (UnsatisfiedLinkError ule) {
+            t=ule;
+        } catch (SecurityException se) {
+            t=se;
+        } catch (NullPointerException npe) {
+            t=npe;
+        } catch (RuntimeException re) {
+            t=re;
+        }
+        if(DEBUG && null!=t) {
+            System.err.println("DesktopGLDynamicLookupHelper: Desktop GL Binding Library not available");
+            t.printStackTrace();
+        }
+
+        try {
+            GLJNILibLoader.loadGLDesktopES12();
+            hasGLES12Binding = true;
+        } catch (UnsatisfiedLinkError ule) {
+            t=ule;
+        } catch (SecurityException se) {
+            t=se;
+        } catch (NullPointerException npe) {
+            t=npe;
+        } catch (RuntimeException re) {
+            t=re;
+        }
+        if(DEBUG && null!=t) {
+            System.err.println("DesktopGLDynamicLookupHelper: Desktop GLES12 Binding Library not available");
+            t.printStackTrace();
+        }
+    }
+}
+