Purple CoreUI: Lossy compression of image in Asset Catalog doesn't work on Display P3 device

Originator:craig.hockenberry
Number:rdar://27663984 Date Originated:02-Aug-2016 01:12 PM
Status:Open Resolved:
Product:iOS SDK Product Version:10.0 (14A5309d)
Classification:Serious Bug Reproducible:Always
 
Summary:
An image set that uses lossy compression renders incorrectly on a device if it uses lossy compression.

Steps to Reproduce:
1) Build and run the attached project on an iPad Pro (9.7 inch) device
2) Tap “Asset Tests” then “Adaptive”

Expected Results:
The image should render correctly

Actual Results:
The image is flipped

Regression:
N/A

Notes:

• The image is Harbor_Universal in the Images.xcassets file.

• The rendering problem changes depending on the type of compression used (GPU vs. Basic.) See the attached screenshots.

• There is no problem on an 8-bit sRGB device.

• The iOS Simulator renders the image correctly: this problem only occurs on the device hardware.

• Turning off lossy compression causes the image to render correctly.

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