Fix Capabilities ambiguity and explosion of queried available-list; Add FBO availability detection for EGL, WGL and OSX.

Introducing Capabilities 'bitmap' boolean, complementing the offscreen modes FBO and PBuffer.
This allows:
  1 - deterministic setting of the offscreen mode

  2 - utilizing auto configuration of offscreen mode, if !onscreen !FBO !PBuffer and !Bitmap

  3 - adding 'availability' semantic of 'onscreen' boolean,
      i.e. if onscree:=1 for a queried instance, the offscreen modes still indicate offscreen
      availability - see [4]

  4 - avoiding explosion of the availability list due to [3],
      one Capability entry reflect on- and offscreen settings.

Add FBO availability detection for EGL, WGL and OSX.

Tested manually w/ 'TestGLCapabilities01NEWT' on X11 [NV, ATI], WGL[NV], OSX[NV].

1 files changed, 4 insertions, 2 deletions

diff --git a/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java b/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
index 2f2bf5961..e1e253d35 100644
--- a/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
@@ -271,7 +271,10 @@ public abstract class GLDrawableFactoryImpl extends GLDrawableFactory {
         throw new GLException("No shared device for requested: "+deviceReq);
     }
     
-    if( capsRequested.isFBO() && GLContext.isFBOAvailable(device, capsRequested.getGLProfile()) ) {
+    final GLCapabilitiesImmutable capsChosen = GLGraphicsConfigurationUtil.fixOffscreenGLCapabilities(capsRequested, 
+                                                        GLContext.isFBOAvailable(device, capsRequested.getGLProfile()), 
+                                                        canCreateGLPbuffer(device));    
+    if( capsChosen.isFBO() ) {
         device.lock();
         try {
             return createFBODrawableImpl(device, capsRequested, chooser, width, height);
@@ -280,7 +283,6 @@ public abstract class GLDrawableFactoryImpl extends GLDrawableFactory {
         }
     }
     
-    final GLCapabilitiesImmutable capsChosen = GLGraphicsConfigurationUtil.fixOffscreenGLCapabilities(capsRequested, false, canCreateGLPbuffer(device));
     device.lock();
     try {
         return createOffscreenDrawableImpl( createMutableSurfaceImpl(device, true, capsChosen, capsRequested, chooser, width, height, null) );