update_with_buffer not working on macOS Mojave? about rust_minifb HOT 11 CLOSED

Just a small update that I have a basic version up and running in https://github.com/emoon/rust_minifb/tree/metal-macos now. It needs a bunch of clean up and some proper sync setup but the gist of it is that it's working at least.

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0.11.0 has now been published with macOS backend rewritten using Metal. I will close this now but please re-open if you have any issues :)

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I tested this now and that seems to indeed be the case. I have no idea why but I will take a look at it. I'm currently a bit busy but I will start looking at it early next week.

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FYI, I just rebuilt a C++ program I had using the C++ minifb and that has the same issue using mfb_update(). I would guess something changed in the macOS APIs.

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Yeah. The Rust version is using the same APIs so I'm sure it's something that has changed so I will need to investigate it

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I poked one of the SDL devs (credit: Ryan Gordon) and they suggested that "Rendering needs to happen in its own CoreAnimation layer or it won't work anymore". The SDL fix is here (Ryan highlighted the wantsUpdateLayer part): https://hg.libsdl.org/SDL/rev/86dcfbbcacaf

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Thanks! I will try to fix this as soon as I can

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I looked into this but still can't really figure out how to get it to work. I will ask around a bit and try to figure it out

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https://developer.apple.com/videos/play/wwdc2018/209/ at 22:40 they start talking about layer backing changes in Mojave. Transcript here: https://asciiwwdc.com/2018/sessions/209 . Search for layer and you should find it pretty quickly.

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Thanks. I looked at it but it still doesn't explain exactly what I need to change. I tried some various thing of using wantsLayerUpdate and I get a single call to layerUpdate

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I'm considering rewriting this to use Metal instead. It should sort out some other issues #28 and #30 as well while doing it. That means it will require 10.11 (El Capitan) which I think is fine

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