Add support for wii u

Unknown

@IceChes1 said in Add support for wii u:

Wouldn't Wii U choke up the CPU on anything other than a desktop computer? I've seen dolphin on a Pi 4, running the original Wii, and it's CRAP. The Pi 4 was actually 4GB and overclocked to 2000 megahertz. I would think Wii U would cause something to explode.

Well it probably would melt something if the pi didn't have a fan and heat sink cooling system, but you know that N64 games did not run very well until the pi4 came out. I think the Wii U would be in a similar situation until a newer pi comes out, but it should work on a 64bit desktop computer.

A Former User

I've begun the outline of a decaf-emu install script. It does NOT work! I thought I'd post it with the hope of either help, or allowing someone else to run with it. I haven't had much time to work on it yet.

https://raw.githubusercontent.com/gderber/RetroPie-Setup/feature/decaf/scriptmodules/emulators/decaf.sh

currently build fails with:

[ 19%] Linking CXX static library ../../obj/liblibcpu.a
[ 19%] Built target libcpu
[ 19%] Generating generated/vulkan_shaders_bin/gpu7_tiling.comp.spv.h, generated/vulkan_shaders_bin/gpu7_tiling.comp.spv.cpp
/bin/sh: 1: GLSLANG_VALIDATOR-NOTFOUND: not found
src/libgpu/CMakeFiles/libgpu.dir/build.make:62: recipe for target 'src/libgpu/generated/vulkan_shaders_bin/gpu7_tiling.comp.spv.h' failed
make[2]: *** [src/libgpu/generated/vulkan_shaders_bin/gpu7_tiling.comp.spv.h] Error 127
CMakeFiles/Makefile2:1131: recipe for target 'src/libgpu/CMakeFiles/libgpu.dir/all' failed
make[1]: *** [src/libgpu/CMakeFiles/libgpu.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

A couple of notes:

I am running RetroPie on a PC
I am not sure if my PC is powerful enough for this. I decided one way to find out is to try it out and see what happens.
I haven't actually run the script. I am trying out all the commands manually one step at a time to identify all the information required to script the install.

Unknown

@gderber What kind of firmware are you using? Is it ubuntu? Is your linux software fully up to date?

A Former User

@Unknown I'm running Xubuntu 18.04. I update it at least weekly. More frequently when trying to compile something and I run into problems. I haven't convinced myself to update to 20.04 yet.

Not exactly sure what you are asking as far as firmware. Generally when I hear that term, it's super low level hardware specific.

Unknown

@gderber Do you have a 64 bit processor? It is required to run this emulator.

Unknown

@gderber said in Add support for wii u:

Not exactly sure what you are asking as far as firmware. Generally when I hear that term, it's super low level hardware specific.

I was asking if you were using Linux as your operating system.

IceChes1

@Unknown said in Add support for wii u:

but you know that N64 games did not run very well until the pi4 came out. I think the Wii U would be in a similar situation until a newer pi comes out, but it should work on a 64bit desktop computer.

Sorry this reply is a bit late. I wouldn't know. I began my retro-gaming hobby after the Pi 4 was out for quite a while.

A Former User

@Unknown I'm running this on a i5-4690 with a GTX 750 video card. I'm certain I can run it, I am not certain it'll be fast enough to run it well.

Unknown

@gderber Do you have an enormous amount of games already on your retro pie? If your memory is full, it would make sense that the emulator wasn't completely installed.

Unknown

@gderber Here is a link for what they say is required for Linux:
https://github.com/decaf-emu/decaf-emu/blob/master/BUILDING.md#Linux

A Former User

@Unknown This is a problem with building the decaf emulator. I have a 3tb hd about 50% capacity installed. I have 16GB ram in the system.

The problem is a missing dependency. One that is not listed in the decaf documentation. I have already identified 2 of those. I haven't identified this one.

A Former User

I've identified the missing dependencies. Build gets a little further.

Current script is at the same link.

For some reason even with

export CC="/usr/bin/gcc-8"
export CXX="/usr/bin/g++-8"

Cmake seems determined to use
/usr/bin/g++ which is a symlink to /usr/bin/g++-7

When I point the symlink for g++ to g++-8 it gets to about 92% completion. Without that change, it gets to about 56%. The decaf docs do specify g++-8 is needed. I don't like the idea of checking a systems g++ symlink and changing if needed.

A Former User

A quick update. As long as g++ is a symlink to g++-8 and the SDL frontend is used instead of th QT5 frontend, I have a successful build.

Unknown

@gderber So decaf is now working?

A Former User

@Unknown I have a successful build. Haven't tried running it yet. It might be this weekend before I get to that.

I want to test the script installation, and use that for testing how well decaf runs.

Unknown

@gderber I understand.

Unknown

@gderber Any progress on decaf? Just curious.

A Former User

@Unknown Script I have installs the decaf-cli binary. Currently it won't run anything. I have more debugging to do.

Unknown

@gderber Do you mind if I ask you about the progress of decaf once a week? If not that's perfectly fine.

A Former User

@Unknown As it currently stands, the installer will install decaf.

Decaf isn't working for me, and the error message is not very helpful. I don't remember exactly what it said, but it was about as helpful as

decaf started
decaf exited

I've got a few other projects that I'm working on, unfortunately for now, this one is going to the bottom of the pile. I've made available what I have done so far, if you or anyone else would like to work on it and try to get decaf to work, go for it.