Any efficient way to pass the frame buffer to the WebView?

[rustdesk]

rustdesk/rustdesk#533 (comment)

[JonasKruckenberg]

Yes, I was trying to find out how to use shared memory in Tauri, but sadly I haven't found any related API.

That's because Tauri chose Message Passing as it's IPC architecture not Shared Memory. We basically chose to trade performance in exchange for security. So shared memory for zero-copy data exchange is neither supported nor planned. But our current IPC system isn't perfect either, the bad performance with binary data is something we will be working on after v1 and while not zero-copy, I hope we can deliver performance comparable to WebRTC.

[michael-dm]

interested too, opt-in shared memory would be game-changer for any graphics-heavy app

[gabrielsalvador]

also looking for something like this.

[FabianLars]

+1 comments are cool and all but if nobody has actual ideas on how to implement shared memory on non-windows platforms those comments won't make the implementation happen faster. :/

That said, we're aware of the importance of IPC performance and we're not exactly happy with it ourselves, even considering the improvements in 2.0, so this topic is always in our minds.

[JPHutchins]

I’ll see what I can find. Is feature parity between all OS critical? MacOS?

[FabianLars]

Nope, it's probably unrealistic, especially with mobile support being part of Tauri now. It'd just be nice to be possible on more than one OS 🙃