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, 261 insertions, 0 deletions

diff --git a/src/classes/com/sun/opengl/impl/macosx/MacOSXGLContext.java b/src/classes/com/sun/opengl/impl/macosx/MacOSXGLContext.java
new file mode 100644
index 000000000..e7b06e32e
--- /dev/null
+++ b/src/classes/com/sun/opengl/impl/macosx/MacOSXGLContext.java
@@ -0,0 +1,261 @@
+/*
+ * 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.macosx;
+
+import java.nio.*;
+import java.util.*;
+import javax.media.opengl.*;
+import com.sun.opengl.impl.*;
+
+public abstract class MacOSXGLContext extends GLContextImpl
+{	
+  protected MacOSXGLDrawable drawable;
+  protected long nsContext; // NSOpenGLContext
+  private CGLExt cglExt;
+  // Table that holds the addresses of the native C-language entry points for
+  // CGL extension functions.
+  private CGLExtProcAddressTable cglExtProcAddressTable;
+  
+  public MacOSXGLContext(MacOSXGLDrawable drawable,
+                         GLContext shareWith)
+  {
+    super(shareWith);
+    this.drawable = drawable;
+  }
+	
+  public Object getPlatformGLExtensions() {
+    return getCGLExt();
+  }
+
+  public CGLExt getCGLExt() {
+    if (cglExt == null) {
+      cglExt = new CGLExtImpl(this);
+    }
+    return cglExt;
+  }
+
+  public GLDrawable getGLDrawable() {
+    return drawable;
+  }
+
+  protected String mapToRealGLFunctionName(String glFunctionName)
+  {
+    return glFunctionName;
+  }
+	
+  protected String mapToRealGLExtensionName(String glExtensionName)
+  {
+    return glExtensionName;
+  }
+	
+  protected boolean create() {
+    return create(false, false);
+  }
+
+  /**
+   * Creates and initializes an appropriate OpenGl nsContext. Should only be
+   * called by {@link makeCurrentImpl()}.
+   */
+  protected boolean create(boolean pbuffer, boolean floatingPoint) {
+    MacOSXGLContext other = (MacOSXGLContext) GLContextShareSet.getShareContext(this);
+    long share = 0;
+    if (other != null) {
+      share = other.getNSContext();
+      if (share == 0) {
+        throw new GLException("GLContextShareSet returned an invalid OpenGL context");
+      }
+    }
+    int[] viewNotReady = new int[1];
+    GLCapabilities capabilities = drawable.getCapabilities();
+    nsContext = CGL.createContext(share,
+                                  drawable.getView(),
+                                  capabilities.getDoubleBuffered() ? 1 : 0,
+                                  capabilities.getStereo() ? 1 : 0,
+                                  capabilities.getRedBits(),
+                                  capabilities.getGreenBits(),
+                                  capabilities.getBlueBits(),
+                                  capabilities.getAlphaBits(),
+                                  capabilities.getDepthBits(),
+                                  capabilities.getStencilBits(),
+                                  capabilities.getAccumRedBits(),
+                                  capabilities.getAccumGreenBits(),
+                                  capabilities.getAccumBlueBits(),
+                                  capabilities.getAccumAlphaBits(),
+                                  capabilities.getSampleBuffers() ? 1 : 0,
+                                  capabilities.getNumSamples(),
+                                  (pbuffer ? 1 : 0),
+                                  (floatingPoint ? 1 : 0),
+                                  viewNotReady, 0);
+    if (nsContext == 0) {
+      if (viewNotReady[0] == 1) {
+        if (DEBUG) {
+          System.err.println("!!! View not ready for " + getClass().getName());
+        }
+        // View not ready at the window system level -- this is OK
+        return false;
+      }
+      throw new GLException("Error creating nsContext");
+    }
+    GLContextShareSet.contextCreated(this);
+    return true;
+  }    
+	
+  protected int makeCurrentImpl() throws GLException {
+    boolean created = false;
+    if (nsContext == 0) {
+      if (!create()) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      if (DEBUG) {
+        System.err.println("!!! Created GL nsContext for " + getClass().getName());
+      }
+      created = true;
+    }
+            
+    if (!CGL.makeCurrentContext(nsContext, drawable.getView())) {
+      throw new GLException("Error making nsContext current");
+    }
+            
+    if (created) {
+      resetGLFunctionAvailability();
+      return CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+	
+  protected void releaseImpl() throws GLException {
+    if (!CGL.clearCurrentContext(nsContext, drawable.getView())) {
+      throw new GLException("Error freeing OpenGL nsContext");
+    }
+  }
+	
+  protected void destroyImpl() throws GLException {
+    if (nsContext != 0) {
+      if (!CGL.deleteContext(nsContext, 0)) {
+        throw new GLException("Unable to delete OpenGL context");
+      }
+      if (DEBUG) {
+        System.err.println("!!! Destroyed OpenGL context " + nsContext);
+      }
+      nsContext = 0;
+      GLContextShareSet.contextDestroyed(this);
+    }
+  }
+
+  public boolean isCreated() {
+    return (nsContext != 0);
+  }
+	
+  protected void resetGLFunctionAvailability()
+  {
+    super.resetGLFunctionAvailability();
+    if (DEBUG) {
+      System.err.println("!!! Initializing CGL extension address table");
+    }
+    resetProcAddressTable(getCGLExtProcAddressTable());
+  }
+	
+  public CGLExtProcAddressTable getCGLExtProcAddressTable() {
+    if (cglExtProcAddressTable == null) {
+      // FIXME: cache ProcAddressTables by capability bits so we can
+      // share them among contexts with the same capabilities
+      cglExtProcAddressTable = new CGLExtProcAddressTable();
+    }          
+    return cglExtProcAddressTable;
+  }
+
+  public String getPlatformExtensionsString()
+  {
+    return "";
+  }
+	
+  public void setSwapInterval(int interval) {
+    if (nsContext == 0) {
+      throw new GLException("OpenGL context not current");
+    }
+    CGL.setSwapInterval(nsContext, interval);
+  }
+
+  public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) {
+    // FIXME: apparently the Apple extension doesn't require a custom memory allocator
+    throw new GLException("Not yet implemented");
+  }
+
+  protected boolean isFunctionAvailable(String glFunctionName)
+  {
+    return super.isFunctionAvailable(glFunctionName);
+  }
+  
+  public boolean isExtensionAvailable(String glExtensionName) {
+    if (glExtensionName.equals("GL_ARB_pbuffer") ||
+        glExtensionName.equals("GL_ARB_pixel_format")) {
+      return true;
+    }
+    return super.isExtensionAvailable(glExtensionName);
+  }
+  
+  public int getOffscreenContextPixelDataType() {
+    throw new GLException("Should not call this");
+  }
+
+  public int getOffscreenContextReadBuffer() {
+    throw new GLException("Should not call this");
+  }
+
+  public boolean offscreenImageNeedsVerticalFlip() {
+    throw new GLException("Should not call this");
+  }
+
+  public void bindPbufferToTexture() {
+    throw new GLException("Should not call this");
+  }
+    
+  public void releasePbufferFromTexture() {
+    throw new GLException("Should not call this");
+  }
+    
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+	
+  protected long getNSContext() {
+    return nsContext;
+  }
+}