1 files changed, 99 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLExternalContext.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLExternalContext.java
new file mode 100755
index 000000000..de7fd2ba4
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLExternalContext.java
@@ -0,0 +1,99 @@
+/*
+ * 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.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.jogamp.opengl.impl.egl;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import javax.media.nativewindow.*;
+
+public class EGLExternalContext extends EGLContext {
+    private boolean firstMakeCurrent = true;
+    private boolean created = true;
+    private GLContext lastContext;
+
+    public EGLExternalContext(AbstractGraphicsScreen screen) {
+        super(null, null);
+        GLContextShareSet.contextCreated(this);
+        setGLFunctionAvailability(false);
+        getGLStateTracker().setEnabled(false); // external context usage can't track state in Java
+    }
+
+    public int makeCurrent() throws GLException {
+        // Save last context if necessary to allow external GLContexts to
+        // talk to other GLContexts created by this library
+        GLContext cur = getCurrent();
+        if (cur != null && cur != this) {
+            lastContext = cur;
+            setCurrent(null);
+        }
+        return super.makeCurrent();
+    }  
+
+    public void release() throws GLException {
+        super.release();
+        setCurrent(lastContext);
+        lastContext = null;
+    }
+
+    protected int makeCurrentImpl() throws GLException {
+        if (firstMakeCurrent) {
+            firstMakeCurrent = false;
+            return CONTEXT_CURRENT_NEW;
+        }
+        return CONTEXT_CURRENT;
+    }
+
+    protected void releaseImpl() throws GLException {
+    }
+
+    protected void destroyImpl() throws GLException {
+        created = false;
+        GLContextShareSet.contextDestroyed(this);
+    }
+
+    public boolean isCreated() {
+        return created;
+    }
+
+    public void bindPbufferToTexture() {
+        throw new GLException("Should not call this");
+    }
+
+    public void releasePbufferFromTexture() {
+        throw new GLException("Should not call this");
+    }
+
+}