Merged JSR-231 branch on to the main JOGL trunk. The main trunk now

contains the evolving JSR-231 Reference Implementation and the JSR-231
branch is permanently closed.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@401 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 212 insertions, 0 deletions

diff --git a/src/classes/com/sun/opengl/impl/x11/X11ExternalGLDrawable.java b/src/classes/com/sun/opengl/impl/x11/X11ExternalGLDrawable.java
new file mode 100755
index 000000000..371930013
--- /dev/null
+++ b/src/classes/com/sun/opengl/impl/x11/X11ExternalGLDrawable.java
@@ -0,0 +1,212 @@
+/*
+ * 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 javax.media.opengl.*;
+import com.sun.opengl.impl.*;
+
+public class X11ExternalGLDrawable extends X11GLDrawable {
+  private int fbConfigID;
+  private int renderType;
+  private int screen;
+  private long readDrawable;
+
+  public X11ExternalGLDrawable() {
+    super(null, null, null);
+    lockAWT();
+    try {
+      display = GLX.glXGetCurrentDisplay();
+      drawable = GLX.glXGetCurrentDrawable();
+      readDrawable = GLX.glXGetCurrentReadDrawable();
+
+      // Need GLXFBConfig ID in order to properly create new contexts
+      // on this drawable
+      long context = GLX.glXGetCurrentContext();
+      int[] val = new int[1];
+      GLX.glXQueryContext(display, context, GLX.GLX_FBCONFIG_ID, val, 0);
+      fbConfigID = val[0];
+      renderType = GLX.GLX_RGBA_TYPE;
+      GLX.glXQueryContext(display, context, GLX.GLX_RENDER_TYPE, val, 0);
+      if ((val[0] & GLX.GLX_RGBA_BIT) == 0) {
+        if (DEBUG) {
+          System.err.println("X11ExternalGLDrawable: WARNING: forcing GLX_RGBA_TYPE for newly created contexts");
+        }
+      }
+      GLX.glXQueryContext(display, context, GLX.GLX_SCREEN, val, 0);
+      screen = val[0];
+    } finally {
+      unlockAWT();
+    }
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new Context(shareWith);
+  }
+
+  public void setSize(int newWidth, int newHeight) {
+    throw new GLException("Should not call this");
+  }
+
+  public int getWidth() {
+    throw new GLException("Should not call this");
+  }  
+
+  public int getHeight() {
+    throw new GLException("Should not call this");
+  }  
+
+  public void destroy() {
+  }
+
+  class Context extends X11GLContext {
+    Context(GLContext shareWith) {
+      super(X11ExternalGLDrawable.this, shareWith);
+      this.drawable = drawable;
+    }
+
+    protected int makeCurrentImpl() throws GLException {
+      if (drawable.getDrawable() == 0) {
+        // parent drawable not properly initialized
+        // FIXME: signal error?
+        if (DEBUG) {
+          System.err.println("parent drawable not properly initialized");
+        }
+        return CONTEXT_NOT_CURRENT;
+      }
+
+      // Note that we have to completely override makeCurrentImpl
+      // because the underlying makeCurrent call differs from the norm
+      lockAWT();
+      try {
+        boolean created = false;
+        if (context == 0) {
+          create();
+          if (DEBUG) {
+            System.err.println(getThreadName() + ": !!! Created GL context for " + getClass().getName());
+          }
+          created = true;
+        }
+
+        if (!GLX.glXMakeContextCurrent(drawable.getDisplay(),
+                                       drawable.getDrawable(),
+                                       readDrawable,
+                                       context)) {
+          throw new GLException("Error making context current");
+        } else {
+          mostRecentDisplay = drawable.getDisplay();
+          if (DEBUG && VERBOSE) {
+            System.err.println(getThreadName() + ": glXMakeCurrent(display " + toHexString(drawable.getDisplay()) +
+                               ", drawable " + toHexString(drawable.getDrawable()) +
+                               ", context " + toHexString(context) + ") succeeded");
+          }
+        }
+
+        if (created) {
+          resetGLFunctionAvailability();
+          return CONTEXT_CURRENT_NEW;
+        }
+        return CONTEXT_CURRENT;
+      } finally {
+        unlockAWT();
+      }
+    }
+
+    protected void releaseImpl() throws GLException {
+      lockAWT();
+      try {
+        if (!GLX.glXMakeContextCurrent(drawable.getDisplay(), 0, 0, 0)) {
+          throw new GLException("Error freeing OpenGL context");
+        }
+      } finally {
+        unlockAWT();
+      }
+    }
+
+    protected void create() {
+      // We already have the GLXFBConfig ID for the context. All we
+      // need to do is use it to choose the GLXFBConfig and then
+      // create a context with it.
+      int[]   iattributes = new int[] {
+        GLX.GLX_FBCONFIG_ID,
+        fbConfigID,
+        0,
+        0
+      };
+      float[] fattributes = new float[0];
+      int[] nelementsTmp = new int[1];
+      GLXFBConfig[] fbConfigs = GLX.glXChooseFBConfig(display, screen, iattributes, 0, nelementsTmp, 0);
+      int nelements = nelementsTmp[0];
+      if (nelements <= 0) {
+        throw new GLException("context creation error: couldn't find a suitable frame buffer configuration");
+      }
+      if (nelements != 1) {
+        throw new GLException("context creation error: shouldn't get more than one GLXFBConfig");
+      }
+      // Note that we currently don't allow selection of anything but
+      // the first GLXFBConfig in the returned list (there should be only one)
+      GLXFBConfig fbConfig = fbConfigs[0];
+      // Create a gl context for the drawable
+      X11GLContext other = (X11GLContext) GLContextShareSet.getShareContext(this);
+      long share = 0;
+      if (other != null) {
+        share = other.getContext();
+        if (share == 0) {
+          throw new GLException("GLContextShareSet returned an invalid OpenGL context");
+        }
+      }
+      // FIXME: how to determine "direct" bit?
+      context = GLX.glXCreateNewContext(display, fbConfig, renderType, share, true);
+      if (context == 0) {
+        String detail = "  display=" + toHexString(display) +
+          " fbconfig=" + fbConfig +
+          " fbconfigID=" + toHexString(fbConfigID) +
+          " renderType=" + toHexString(renderType) +
+          " share=" + toHexString(share);
+        throw new GLException("context creation error: glXCreateNewContext() failed: " + detail);
+      }
+      GLContextShareSet.contextCreated(this);
+
+      if (DEBUG) {
+        System.err.println("Created context " + toHexString(context) +
+                           " for GLXDrawable " + toHexString(drawable.getDrawable()));
+      }
+    }
+  }
+}