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, 8 insertions, 5 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/JoglVersion.java b/src/jogl/classes/com/jogamp/opengl/JoglVersion.java
index 560d99025..92511dc11 100644
--- a/src/jogl/classes/com/jogamp/opengl/JoglVersion.java
+++ b/src/jogl/classes/com/jogamp/opengl/JoglVersion.java
@@ -69,11 +69,12 @@ public class JoglVersion extends JogampVersion {
         return toString(gl, null).toString();
     }
 
-    public static StringBuilder getAvailableCapabilitiesInfo(final GLDrawableFactory factory, final AbstractGraphicsDevice device, StringBuilder sb) {
+    public static StringBuilder getAvailableCapabilitiesInfo(final AbstractGraphicsDevice device, StringBuilder sb) {
         if(null==sb) {
             sb = new StringBuilder();
         }
         boolean done = false;
+        final GLDrawableFactory factory = GLDrawableFactory.getFactory(device);
         if(null!=factory) {
             try {
                 final List<GLCapabilitiesImmutable> availCaps = factory.getAvailableCapabilities(device);
@@ -100,10 +101,12 @@ public class JoglVersion extends JogampVersion {
             device = GLProfile.getDefaultDevice();
         }
         sb.append(Platform.getNewline()).append(Platform.getNewline());
-        sb.append("Desktop Capabilities: ").append(Platform.getNewline());
-        getAvailableCapabilitiesInfo(GLDrawableFactory.getDesktopFactory(), device, sb);
-        sb.append("EGL Capabilities: ").append(Platform.getNewline());
-        getAvailableCapabilitiesInfo(GLDrawableFactory.getEGLFactory(), device, sb);
+        try {
+            sb.append("Capabilities for ").append(device.toString()).append(Platform.getNewline());
+            getAvailableCapabilitiesInfo(device, sb);
+        } catch (final GLException gle) {
+            System.err.println(gle.getMessage());
+        }
         return sb;
     }