iOS: Initial working commit supporting iOS (ipad pro 11)

using our OpenJFK 9 x86_64 and arm64 build.

Test demo class is 'com.jogamp.opengl.demos.ios.Hello',
residing in the new demo folder 'src/demos/com/jogamp/opengl/demos/ios/Hello.java'.

This commit does not yet include a working NEWT
specialization for iOS, but it shall followup soon.

Instead this commit demonstrates JOGL operating on
native UIWindow, UIView and CAEAGLLayer as provided by
Nativewindow's IOSUtil.

Test Video https://www.youtube.com/watch?v=Z4lUQNFTGMI

+++

Notable bug: The FBO used and sharing the COLORBUFFER RENDERBUFFER
memory resources with CAEAGLLayer to be displayed in the UIView
seemingly cannot handle GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24
or GL_DEPTH_COMPONENT32 depth buffer - none at all (Device + Simulation).

Therefor the default demo GLEventListener chosen here
don't require a depth buffer ;-)

This issue can hopefully be mitigated with other means
than using a flat FBO sink similar to FBO multisampling.

1 files changed, 7 insertions, 4 deletions

diff --git a/src/jogl/classes/jogamp/opengl/GLContextImpl.java b/src/jogl/classes/jogamp/opengl/GLContextImpl.java
index 6866374bc..84c62b95d 100644
--- a/src/jogl/classes/jogamp/opengl/GLContextImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLContextImpl.java
@@ -2442,10 +2442,13 @@ public abstract class GLContextImpl extends GLContext {
             GLRendererQuirks.pushStickyDeviceQuirks(factoryDefaultDevice, quirks);
         }
         if( isES ) {
-            final AbstractGraphicsDevice eglFactoryDefaultDevice = GLDrawableFactory.getEGLFactory().getDefaultDevice();
-            if( !GLRendererQuirks.areSameStickyDevice(eglFactoryDefaultDevice, adevice) &&
-                !GLRendererQuirks.areSameStickyDevice(eglFactoryDefaultDevice, factoryDefaultDevice) ) {
-                GLRendererQuirks.pushStickyDeviceQuirks(eglFactoryDefaultDevice, quirks);
+            final GLDrawableFactory mobileFactory = GLDrawableFactory.getFactory(true);
+            if( null != factory ) {
+                final AbstractGraphicsDevice esFactoryDefaultDevice = mobileFactory.getDefaultDevice();
+                if( !GLRendererQuirks.areSameStickyDevice(esFactoryDefaultDevice, adevice) &&
+                    !GLRendererQuirks.areSameStickyDevice(esFactoryDefaultDevice, factoryDefaultDevice) ) {
+                    GLRendererQuirks.pushStickyDeviceQuirks(esFactoryDefaultDevice, quirks);
+                }
             }
         }
     }