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I can also confirm. iPhone XS (iOS 15.1 / A12), displays a black box. 2020 iPad Air (iPadOS 15.1 / A14), displays image perfectly.
by alberth 5y ago
I can also confirm.
iPhone XS (iOS 15.1 / A12), displays a black box.
2020 iPad Air (iPadOS 15.1 / A14), displays image perfectly.
- styfle 5y agoAre both running the same version of iOS?
- extra88 5y agoSince 2019, iPads no longer run iOS, they run iPadOS. Of course, there's still a lot of overlap between the two but differences can creep in. A difference that shouldn't be relevant to JPEG rendering is iPadOS Safari loads the desktop versions of websites by default.
- alberth 5y agoBoth run 15.1. But apparently iOS vs iPadOS have differences.
- extra88 5y agoWhat processor does your iPhone have? Maybe it's a hardware decoding difference. It renders on my iPhone with a A14 Bionic processor.
- alberth 5y agoI just updated my original post. A12 Bionic is my iPhone (XS). Interesting if it's hardware assisted.
- marcan_42 5y agoiPhone SoCs have had hardware JPEG decoding since basically forever. However, I'd be surprised if that hardware block suddenly got updated to support AC. If I had to guess, A14 devices aren't using the hardware decoder any more for some reason, and that's why it works.
- extra88 5y agoIf the comment you replied to meant iPad 10.2" 8th Gen by "2020 iPad," that also has an A12 Bionic. If their "2020 iPad" was actually a 4th gen Air (A14 Bionic) or 2nd iPad Pro (A12Z Bionic), it could still be a hardware decoding difference.
- mnd999 5y agoI have the same iPhone XS and it renders fine. Bizarre.
- josephg 5y agoWorks fine on my iPhone 12 in safari too. (Running iOS 15.1)