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, 38 insertions, 11 deletions

diff --git a/src/newt/native/MacWindow.m b/src/newt/native/MacWindow.m
index e0330a563..b9c339285 100644
--- a/src/newt/native/MacWindow.m
+++ b/src/newt/native/MacWindow.m
@@ -94,7 +94,13 @@ static void changeContentView(JNIEnv *env, jobject javaWindowObject, NSView *pvi
     if(NULL!=oldNSView) {
 NS_DURING
         // Available >= 10.5 - Makes the menubar disapear
-        if([oldNSView isInFullScreenMode]) {
+        BOOL iifs;
+        if ( [oldNSView respondsToSelector:@selector(isInFullScreenMode)] ) {
+            iifs = [oldNSView isInFullScreenMode];
+        } else {
+            iifs = NO;
+        }
+        if(iifs && [oldNSView respondsToSelector:@selector(exitFullScreenModeWithOptions:)] ) {
             [oldNSView exitFullScreenModeWithOptions: NULL];
         }
 NS_HANDLER
@@ -430,6 +436,8 @@ JNIEXPORT jintArray JNICALL Java_jogamp_newt_driver_macosx_ScreenDriver_getScree
     if( -1 < mode_idx ) {
         prop[propIndex++] = mode_idx;
     }
+    int refreshRate = CGDDGetModeRefreshRate(mode);
+    int fRefreshRate = ( 0 < refreshRate ) ? refreshRate : 60; // default .. (experienced on OSX 10.6.8)
     prop[propIndex++] = 0; // set later for verification of iterator
     propIndexRes = propIndex;
     prop[propIndex++] = mWidth;
@@ -437,14 +445,14 @@ JNIEXPORT jintArray JNICALL Java_jogamp_newt_driver_macosx_ScreenDriver_getScree
     prop[propIndex++] = CGDDGetModeBitsPerPixel(mode);
     prop[propIndex++] = widthMM;
     prop[propIndex++] = heightMM;
-    prop[propIndex++] = CGDDGetModeRefreshRate(mode);
+    prop[propIndex++] = fRefreshRate;
     prop[propIndex++] = ccwRot;
     prop[propIndex - NUM_SCREEN_MODE_PROPERTIES_ALL] = ( -1 < mode_idx ) ? propIndex-1 : propIndex ; // count == NUM_SCREEN_MODE_PROPERTIES_ALL
 
-    DBG_PRINT( "getScreenMode0: Mode %d/%d (%d): %dx%d, %d bpp, %dx%d mm, %d Hz, rot %d ccw\n",
+    DBG_PRINT( "getScreenMode0: Mode %d/%d (%d): %dx%d, %d bpp, %dx%d mm, %d / %d Hz, rot %d ccw\n",
         (int)mode_idx, (int)numberOfAvailableModesRots, (int)numberOfAvailableModes, 
         (int)prop[propIndexRes+0], (int)prop[propIndexRes+1], (int)prop[propIndexRes+2], 
-        (int)prop[propIndexRes+3], (int)prop[propIndexRes+4], (int)prop[propIndexRes+5], (int)prop[propIndexRes+6]);
+        (int)prop[propIndexRes+3], (int)prop[propIndexRes+4], (int)prop[propIndexRes+5], refreshRate, (int)prop[propIndexRes+6]);
 
     jintArray properties = (*env)->NewIntArray(env, prop_num);
     if (properties == NULL) {
@@ -516,6 +524,8 @@ JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_macosx_WindowDriver_initIDs0
     if(initialized) return JNI_TRUE;
     initialized = 1;
 
+    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+
     jclass c;
     c = (*env)->FindClass(env, ClazzNamePoint);
     if(NULL==c) {
@@ -537,7 +547,10 @@ JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_macosx_WindowDriver_initIDs0
     //    printf("Going to sleep for 10 seconds\n");
     //    sleep(10);
 
-    return (jboolean) [NewtMacWindow initNatives: env forClass: clazz];
+    BOOL res =  [NewtMacWindow initNatives: env forClass: clazz];
+    [pool release];
+
+    return (jboolean) res;
 }
 
 /*
@@ -602,8 +615,10 @@ JNIEXPORT jlong JNICALL Java_jogamp_newt_driver_macosx_WindowDriver_createWindow
     // Remove animations for child windows
     if(NULL != parentWindow) {
 NS_DURING
-        // Available >= 10.7 - Removes default animations
-        [myWindow setAnimationBehavior: NSWindowAnimationBehaviorNone];
+        if ( [myWindow respondsToSelector:@selector(setAnimationBehavior:)] ) {
+            // Available >= 10.7 - Removes default animations
+            [myWindow setAnimationBehavior: NSWindowAnimationBehaviorNone];
+        }
 NS_HANDLER
 NS_ENDHANDLER
     }
@@ -658,8 +673,12 @@ NS_ENDHANDLER
 NS_DURING
     // concurrent view rendering
     // Available >= 10.6 - Makes the menubar disapear
-    [myWindow setAllowsConcurrentViewDrawing: YES];
-    [myView setCanDrawConcurrently: YES];
+    if ( [myWindow respondsToSelector:@selector(setAllowsConcurrentViewDrawing:)] ) {
+        [myWindow setAllowsConcurrentViewDrawing: YES];
+    }
+    if ( [myView respondsToSelector:@selector(setCanDrawConcurrently:)] ) {
+        [myView setCanDrawConcurrently: YES];
+    }
 NS_HANDLER
 NS_ENDHANDLER
 
@@ -669,7 +688,9 @@ NS_ENDHANDLER
 NS_DURING
     // Available >= 10.5 - Makes the menubar disapear
     if(fullscreen) {
-         [myView enterFullScreenMode: myScreen withOptions:NULL];
+        if ( [myView respondsToSelector:@selector(enterFullScreenMode:withOptions:)] ) {
+            [myView enterFullScreenMode: myScreen withOptions:NULL];
+        }
     }
 NS_HANDLER
 NS_ENDHANDLER
@@ -730,7 +751,13 @@ JNIEXPORT void JNICALL Java_jogamp_newt_driver_macosx_WindowDriver_close0
 NS_DURING
     if(NULL!=mView) {
         // Available >= 10.5 - Makes the menubar disapear
-        if([mView isInFullScreenMode]) {
+        BOOL iifs;
+        if ( [mView respondsToSelector:@selector(isInFullScreenMode)] ) {
+            iifs = [mView isInFullScreenMode];
+        } else {
+            iifs = NO;
+        }
+        if(iifs && [mView respondsToSelector:@selector(exitFullScreenModeWithOptions:)] ) {
             [mView exitFullScreenModeWithOptions: NULL];
         }
         // Note: mWin's release will also release it's mView!