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, 1 insertions, 0 deletions

diff --git a/make/stub_includes/macosx/UIKit/NSOpenGLLayer.h b/make/stub_includes/macosx/UIKit/NSOpenGLLayer.h
new file mode 100644
index 000000000..2e5e81a68
--- /dev/null
+++ b/make/stub_includes/macosx/UIKit/NSOpenGLLayer.h
@@ -0,0 +1 @@
+typedef struct _NSOpenGLLayer NSOpenGLLayer;