My app in glbasic reports the iPhone 6 plus screen size
At 2208x1242 - not the expected 1920x1080.
It doesn't appear glbasic will get to "see" the 1920x1080 actual pixel size.
All non-metal rendering is to a virtual buffer larger than the physical pixel dimensions.
This being 2208x1242
A hardware scaler is then used on the iPhone 6 plus model to bring this down to device native
1920x1080
It would be nice to get at the 1920x1080 native with OpenGL but it doesn't seem to be the case?
This German site explains it well
http://m.heise.de/ct/artikel/Apples-iPhone-Tricks-fuer-immer-hoehere-Bildschirmaufloesungen-2394857.html?artikelseite=2&from-classic=1Sorry still to test and report back on x/y issue.