Would there be a version that runs on the Nintendo Switch as a Homebrew

[Tokobotenkai]

Just asking if there's any intention to port this to the Nintendo Switch instead of running from Android.

[CoffeeBrewer64]

Currently, you cannot, but this is a great idea!

Problems:

• Currently, Switch controllers have problems where the controllers are swapped
• Some libraries won't work. Will SDL even work?
• CPU. Would either Dynarmic or Unicorn work on the Switch?
• Performance. Some parts of the Switch may underperform for what Vita3K needs.
• Resolution. The Vita's resolution would have to be upscaled, so the FPS would decrease.
• Building. Building the Switch would have to be automated, but I'm sure there is some library for doing that somewhere on GitHub.

I actually really like this idea! Playing Vita games on a Switch would be cool. You can already do it on a Steam Deck, so on a Nintendo console? Even better.

You could try to get Linux on your Switch and run Vita3K through that, but Vita3K native to the Switch would be nicer.

[Tokobotenkai]

I was thinking since you can run Android on Switch (https://wiki.switchroot.org/en/Android/Setup-10), which from there you install Vita3K Apk.

I don't really understand the code, but it seems that version of Android is patched to utilise the Switch hardware?

Alternatively, the L4T version of Ubuntu on the Switch is patched to utilise the Switch hardware, but Vita3K is x86, so I guess we could try Box86/64 but I am not sure if the performance overhead is significant.

[nn9dev]

Intention for native HOS? I don't think that's on the to-do list at the moment, but anyone familiar with switch development would be greatly welcomed to to so, and I invite anyone with such skills to join us in the discord.

And to clear a few things up:

• someone has in fact had Vita3K running under Android switchroot on a switch
• someone has in fact had Vita3K running under Linux on Switch hardware (on a Jetson I think, but still uses the Tegra X1 chip)
• Dynarmic works on arm64 hosts! This is the dynamic recompiler that Vita3K uses. This would be different from vita2hos by xerpi which instead uses the Switch's 32-bit execution mode (so, a translation layer), where the CPU instructions would be executed directly on the CPU instead of recompiled.
• As far as I'm aware, SDL2 does work on switch

Might be forgetting something, but...

TL;DR, absolutely possible, but not on the main roadmap afaik. Contributions by anyone knowledgeable is more than welcome :)

[Macdu]

Right now you can run Vita3K on the Switch by either:

• Installing Android on your Switch and using the provided APK
• Install Ubuntu (or any other distro) on the Switch then build Vita3K for the it (for the Linux aarch64 architecture), it works and some people have done it but it requires some knowledge to do. I'm planning on adding an automated aarch64 Linux build in the future.

[mrcmunir]

I've simplified a bit for whoever wants to run it on l4t bionic (ffmpeg , libtompcrypt) into test https://github.com/mrcmunir/Vita3K

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update && sudo apt-get upgrade .
wget https://apt.llvm.org/llvm.sh
chmod +x llvm.sh
sudo ./llvm.sh 14
Install dependences :
sudo apt install git cmake ninja-build pkg-config libgtk-3-dev xdg-desktop-portal libssl-dev libstdc+±10-dev
Install update sdl2 from :
bash <( curl https://raw.githubusercontent.com/cobalt2727/L4T-Megascript/master/helper.sh ) "scripts/sdl2_install_helper.sh"
git clone https://github.com/mrcmunir/Vita3K
cd Vita3K
git submodule --init --recursive 
cmake --preset linux-ninja-clang14
cmake --build build/linux-ninja-clang14 --config Release

The only issue for now things in some games it's memory mapping cause some graphical issues with nvidia tegra driver

[gladiator1014]

I've simplified a bit for whoever wants to run it on l4t bionic (ffmpeg , libtompcrypt) into test https://github.com/mrcmunir/Vita3K

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update && sudo apt-get upgrade .
wget https://apt.llvm.org/llvm.sh
chmod +x llvm.sh
sudo ./llvm.sh 14
Install dependences :
sudo apt install git cmake ninja-build pkg-config libgtk-3-dev xdg-desktop-portal libssl-dev libstdc+±10-dev
Install update sdl2 from :
bash <( curl https://raw.githubusercontent.com/cobalt2727/L4T-Megascript/master/helper.sh ) "scripts/sdl2_install_helper.sh"
git clone https://github.com/mrcmunir/Vita3K
cd Vita3K
git submodule --init --recursive 
cmake --preset linux-ninja-clang14
cmake --build build/linux-ninja-clang14 --config Release

I know this old but after running the last of these commands on a hacked Switch Lite running Ubuntu Jammy 22.04 I get a "1 error generated. ninja: build stopped: subcommand failed."

Any ideas on how to fix that or what I should be looking for to identify the error?