1 files changed, 95 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/impl/x11/X11OnscreenGLContext.java b/src/classes/com/sun/opengl/impl/x11/X11OnscreenGLContext.java
new file mode 100644
index 000000000..d6b79cb8f
--- /dev/null
+++ b/src/classes/com/sun/opengl/impl/x11/X11OnscreenGLContext.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2003 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.
+ * 
+ * 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 com.sun.opengl.impl.x11;
+
+import java.util.*;
+
+import javax.media.opengl.*;
+import com.sun.opengl.impl.*;
+
+public class X11OnscreenGLContext extends X11GLContext {
+  protected X11OnscreenGLDrawable drawable;
+
+  public X11OnscreenGLContext(X11OnscreenGLDrawable drawable,
+                              GLContext shareWith) {
+    super(drawable, shareWith);
+    this.drawable = drawable;
+  }
+  
+  protected int makeCurrentImpl() throws GLException {
+    try {
+      int lockRes = drawable.lockSurface();
+      if (lockRes == X11OnscreenGLDrawable.LOCK_SURFACE_NOT_READY) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      if (lockRes == X11OnscreenGLDrawable.LOCK_SURFACE_CHANGED) {
+        if (context != 0) {
+          GLX.glXDestroyContext(mostRecentDisplay, context);
+          GLContextShareSet.contextDestroyed(this);
+          if (DEBUG) {
+            System.err.println(getThreadName() + ": !!! Destroyed OpenGL context " + toHexString(context) + " due to JAWT_LOCK_SURFACE_CHANGED");
+          }
+          context = 0;
+        }
+      }
+      int ret = super.makeCurrentImpl();
+      return ret;
+    } catch (RuntimeException e) {
+      try {
+        drawable.unlockSurface();
+      } catch (Exception e2) {
+        // do nothing if unlockSurface throws
+      }
+      throw(e); 
+    }
+  }
+
+  protected void releaseImpl() throws GLException {
+    try {
+      super.releaseImpl();
+    } finally {
+      drawable.unlockSurface();
+    }
+  }
+
+  protected void create() {
+    createContext(true);
+  }
+}