Is it possible to draw graphics in tvOS in the full RGB range and not have them mapped to the limited video RGB range (16-235)?
I have a full screen view which draws calibration patterns using the full RGB range. I have a brightness pattern which draws a black background and then draws patches at each gray level starting with 1 to 24. While displaying on a calibrated TV I am seeing all of the gray levels which would seem to imply that the full RGB range is being mapped to the limited RGB range when drawing. This happens when the AppleTV is in YCbCr and RGB High mode. In RGB Low mode it looks closer to correct but the blacks may be too crushed.
1. Are there any APIs to set the current context or window or screen to not convert the RGB range to allow drawing beyond the standard video range?
2. Are there any APIs to detect which mode the Apple TV is currently in?
Thanks