Seamless Integration of an FBObject based GLFBODrawable as GLOffscreenAutoDrawable.FBO and as an OffscreenLayerSurface's drawable (OSX) - Fix Bugs 569 and 599

Summary:
=========
The new FBObject based GLFBODrawable implementation allows the seamless utilization of
FBO offscreen rendering in single buffer, double buffer and MSAA mode.

The GLFBODrawable uses a parent drawable based on a
dummy surface to allow a GLOffscreenAutoDrawable.FBO creation
or a mutable surface supporting an existing offscreen layer surface (OSX CALayer).

Offscreen GLDrawable's and GLOffscreenAutoDrawable's can be selected via the
GLCapabilities. If simply !onscreen is selected in the caps instance w/o enabling FBO, PBuffer or Bitmap,
the factory will automatically choose regarding availability:
   FBO > PBuffer > Bitmap

Double buffering is supported in MSAA more (intrinsic) and explicit in non MSAA.
It is preferred when delivering resources (texture id's or framebuffer names)
to a shared GLContext.
This is demonstrated in (emulates our OSX CALayer implementation):
  TestFBOOffThreadSharedContextMix2DemosES2NEWT,
  TestFBOOnThreadSharedContext1DemoES2NEWT
and with the OSX JAWT OffscreenLayerSurface itself. FBO is the preferred choice.

+++

Offscreen drawables can be resized while maintaining a bound GLContext (e.g. w/ GLAutoDrawable).
Previously both, drawable and context, needed to be destroyed and recreated at offscreen resize.
Common implementation in GLDrawableHelper is used in the implementations
(NEWT's GLWindow, AWT GLCanvas, SWT GLCanvas).

+++

Tested:
=======

Manually run all unit tests on:
  - Linux x86_64 NVidia/AMD/Mesa3d(ES)
  - OSX x86_64 NVidia
  - Windows x86_64 NVidia
  - Android arm Mali-400/Tegra-2

No regressions.

Disclaimer:
===========
This feature is committed almost in one patch.

Both previous commits were introducing / fixing the capabilities behavior:
 90d45928186f2be99999461cfe45f76a783cc961
 9036376b7806a5fc61590bf49404eb71830de92f

I have to appologize for the huge size and impact (files and platforms) of this commit
however, I could not find a better way to inject this feature in one sane piece.

NativeWindow Details:
=====================

Complete decoupling of platform impl. detail of surfaces
implementing ProxySurface. Used to generalize dummy surfaces and EGL surfaces
on top of a native platform surface.
  - ProxySurface.UpstreamSurfaceHook -> UpstreamSurfaceHook
  - abstract class ProxySurface -> interface ProxySurface + ProxySurfaceImpl
  - Misc. implementations

JOGL Details:
=====================

FBOObject: API Change / Simplification & Usability
  - Removed reference counter to remove complexity, allow user to choose.
  - Add 'dispose' flag for detachColorbuffer(..), allowing to keep attachment alive
  - Fix equals operation of Attachment
  - Check pre-exising GL errors
  - Interface Colobuffer gets lifecycle methods
  - Add static factory methods to create Attachments w/o FBObject instance
  - Reset:
    - Clip min size to 1
    - Keep alive samplingSink, i.e. don't issue resetMSAATexture2DSink(..).
      It gets called at syncFramebuffer()/use(..) later on before actual usage.
      This allows the consumer to utilize the GL_FRONT buffer until (e.g.) swap.
  - misc bugfixes

GLOffscreenAutoDrawable: API Change
  - Reloc and interfacing
  - class com.jogamp.opengl.OffscreenAutoDrawable -> javax.media.opengl.*
    interfaces GLOffscreenAutoDrawable extends GLAutoDrawable
               GLOffscreenAutoDrawable.FBO extends GLOffscreenAutoDrawable, GLFBODrawable
  - Added general implementation and FBO specialization
  - Replacing GLPBuffer (deprecated) .. usable for any offscreen GLDrawable via factory

GLAutoDrawable:
  - Add 'GLDrawable getDelegatedDrawable()'
  - Refine documentation of setContext(..), remove disclaimer and fixme tags

GLDrawableFactory:
  - Refine API doc and it's selection mechanism for offscreen.
  - Add createOffscreenDrawable(..)
  - Add createOffscreenAutoDrawable(..)
  - Add canCreateFBO(..)
  - Mark createGLPbuffer(..) deprectated

Mark GLPBuffer deprecated

New: GLFBODrawable extends GLDrawable

GLCanvas (AWT and SWT): Add offscreen resize support w/o GLContext recreation

GLAutoDrawableBase .. GLWindow:
  - Add offscreen resize support w/o GLContext recreation
  - Remove double swapBuffer call
  -

GLBase/GLContext:
  - Add:
    - boolean hasBasicFBOSupport()
    - boolean hasFullFBOSupport()
    - int getMaxRenderbufferSamples()
    - boolean isTextureFormatBGRA8888Available()

GLContext: Fix version detection and hasGLSL()
  - Version detection in setGLFunctionAvailability(..)
    - Query GL_VERSION ASAP and parse it and compare w/ given major/minor
    - Use parsed version if valid and lower than given _or_ given is invalid.
    - Use validated version for caching (procaddr, ..), version number, etc.

  - Fix hasGLSL()
    Since 'isGL2ES2()' is true if 'isGL2()'
    and the latter simply alows GL 1.*, we confine the result to a GL >= 2.0
    on desktops. FIXME: May consider GL 1.5 w/ extensions.
    -  return isGL2ES2();
    +      return isGLES2() ||
    +             isGL3() ||
    +             isGL2() && ctxMajorVersion>1 ;

GLDrawableImpl:
  - Add 'associateContext(GLContext, boolean)' allowing impl.
    to have a (weak) reference list of bound context.
    This is was pulled up from the OSX specific drawable impl.
  - swapBuffersImpl() -> swapBuffersImpl(boolean doubleBuffered)
    and call it regardless of single buffering.
    This is required to propagate this event to impl. properly,
    i.e. FBODrawable requires a swap notification.
  - Clarify 'contextMadeCurrent(..)' protocol

GLDrawableHelper:
  - Add resize and recreate offscreen drawable util method
  - Simplify required init/reshape calls for GLEventListener
  -

GLGraphicsConfigurationUtil:
  - fixWinAttribBitsAndHwAccel: Reflect sharede context hw-accel bits
  - OSX has no offscreen bitmap, use pbuffer
  - use proper offscreen auto selection if offscreen and no modes are set

EGL Context/Drawable/DrawableFactory: Abstract native platform code out of base classes
  - Use EGLWrappedSurface w/ UpstreamSurfaceHook to handle upstream (X11, WGL, ..)
    lifecycle - in case the EGL resource is hooked up on it.

Invisible dummy surfaces: All platforms
  - size is now reduced to 64x64 and decoupled of actual generic mutable size
  - fix device  lifecycle, no more leaks

+++

OSX
====

Enable support for GLFBODrawableImpl in offscreen CALayer mode
  - NSOpenGLImpl: hooks to calayer native code
  - calayer code:
    - allows pbuffer and texures (FBO)
    - decouple size and draw calls avoiding flickering
    - enable auto resize of calayer tree

MacOSXCGLContext:
  - NSOpenGLImpl:
  - Fix false pbuffer 'usage', validate the pointer
  - If !pbuffer, copy other window mode bits of caps
  -

MacOSXCGLGraphicsConfiguration:
  - Only assume pbuffer if !onscreen
  - Remove reference of native pixelformat pointer

Native code:
  - use 'respondsToSelector:' query before calling 'new' methods
    avoiding an error message where unsuported (prev. OSX versions)
  - if monitor refresh-rate is queried 0, set to default 60hz
  - add missing NSAutoreleasePool decoration

+++

Android / NEWT:
===============

Issue setVisible(..) w/o wait, i.e. queue on EDT,
@Android surfaceChanged() callback. Otherwise we could deadlock:
   setVisible(..) -> EDT -> setVisibleImpl(..) -> 'GL-display'.
the latter may may cause havoc while Android-EDT is blocked [until it's return].

1 files changed, 0 insertions, 144 deletions

diff --git a/src/jogl/classes/javax/media/opengl/GLAutoDrawableDelegate.java b/src/jogl/classes/javax/media/opengl/GLAutoDrawableDelegate.java
deleted file mode 100644
index 67e81270d..000000000
--- a/src/jogl/classes/javax/media/opengl/GLAutoDrawableDelegate.java
+++ /dev/null
@@ -1,144 +0,0 @@
-/**
- * Copyright 2012 JogAmp Community. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- * 
- *    1. Redistributions of source code must retain the above copyright notice, this list of
- *       conditions and the following disclaimer.
- * 
- *    2. 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.
- * 
- * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``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 JogAmp Community OR
- * CONTRIBUTORS 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.
- * 
- * The views and conclusions contained in the software and documentation are those of the
- * authors and should not be interpreted as representing official policies, either expressed
- * or implied, of JogAmp Community.
- */
- 
-package javax.media.opengl;
-
-import javax.media.nativewindow.AbstractGraphicsDevice;
-
-import com.jogamp.common.util.locks.LockFactory;
-import com.jogamp.common.util.locks.RecursiveLock;
-
-import jogamp.opengl.Debug;
-import jogamp.opengl.GLAutoDrawableBase;
-import jogamp.opengl.GLContextImpl;
-import jogamp.opengl.GLDrawableImpl;
-
-
-/**
- * Fully functional {@link GLAutoDrawable} implementation
- * utilizing already created created {@link GLDrawable} and {@link GLContext} instances.
- * <p>
- * Since no native windowing system events are being processed, it is recommended
- * to handle at least:
- * <ul>
- *   <li>{@link com.jogamp.newt.event.WindowListener#windowRepaint(com.jogamp.newt.event.WindowUpdateEvent) repaint} using {@link #defaultWindowRepaintOp()}</li>
- *   <li>{@link com.jogamp.newt.event.WindowListener#windowResized(com.jogamp.newt.event.WindowEvent) resize} using {@link #defaultWindowResizedOp()}</li>
- *   <li>{@link com.jogamp.newt.event.WindowListener#windowDestroyNotify(com.jogamp.newt.event.WindowEvent) destroy-notify}  using {@link #defaultWindowDestroyNotifyOp()}</li> 
- * </ul> 
- * </p>
- * <p> 
- * See example {@link com.jogamp.opengl.test.junit.jogl.acore.TestGLAutoDrawableDelegateNEWT TestGLAutoDrawableDelegateNEWT}.
- * </p>
- */
-public class GLAutoDrawableDelegate extends GLAutoDrawableBase {
-    public static final boolean DEBUG = Debug.debug("GLAutoDrawableDelegate");
-    
-    /**
-     * @param drawable a valid {@link GLDrawable}, may not be realized yet.
-     * @param context a valid {@link GLContext}, may not be made current (created) yet.
-     * @param upstreamWidget optional UI element holding this instance, see {@link #getUpstreamWidget()}.
-     * @param ownDevice pass <code>true</code> if {@link AbstractGraphicsDevice#close()} shall be issued,
-     *                  otherwise pass <code>false</code>. Closing the device is required in case
-     *                  the drawable is created w/ it's own new instance, e.g. offscreen drawables,
-     *                  and no further lifecycle handling is applied.
-     */
-    public GLAutoDrawableDelegate(GLDrawable drawable, GLContext context, Object upstreamWidget, boolean ownDevice) {
-        super((GLDrawableImpl)drawable, (GLContextImpl)context, ownDevice);
-        this.upstreamWidget = null;
-    }
-    
-    //
-    // expose default methods
-    //
-    
-    public final void windowRepaintOp() {
-        super.defaultWindowRepaintOp();
-    }
-    
-    public final void windowResizedOp() {
-        super.defaultWindowResizedOp();
-    }
-    
-    public final void windowDestroyNotifyOp() {
-        super.defaultWindowDestroyNotifyOp();
-    }
-    
-    //
-    // Complete GLAutoDrawable
-    //
-    
-    private final RecursiveLock lock = LockFactory.createRecursiveLock();  // instance wide lock
-    private final Object upstreamWidget;
-    
-    @Override
-    protected final RecursiveLock getLock() { return lock; }
-    
-    @Override
-    public final Object getUpstreamWidget() {
-        return upstreamWidget;
-    }
-    
-    /**
-     * {@inheritDoc}
-     * <p>
-     * This implementation calls {@link #defaultDestroy()}.
-     * </p>
-     * <p>
-     * User still needs to destroy the upstream window, which details are hidden from this aspect.
-     * This can be performed by overriding {@link #destroyImplInLock()}. 
-     * </p>
-     */
-    @Override
-    public final void destroy() {
-        defaultDestroy();
-    }
-
-    @Override
-    public void display() {
-        defaultDisplay();
-    }
-    
-    //
-    // GLDrawable delegation
-    //
-    
-    @Override
-    public final GLDrawableFactory getFactory() {
-        return drawable.getFactory();
-    }
-    
-    @Override
-    public final void setRealized(boolean realized) {
-    }
-
-    @Override
-    public final void swapBuffers() throws GLException {
-         defaultSwapBuffers();
-    }
-        
-}