ppsspp, how to install it on odroid Xu4?

kara

last problem for me, ppsspp

The installation goes wrong on Odroid Xu4, the compilation fails.

I would first like to know what to install first, there are two emulators for psp, lr-ppsspp and ppsspp which is the one to install in priority? and what are the differences between the 2 emulators? which of these emulators would it be wise to install first?

website Retropie

kara

For ppsspp, it seems that the retropie script loads the 1.5.4 version of the emulator ppsspp or the current stable version of this emulator is 1.7.5. Many things have been updated! Why this version 1.5.4?

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Getting sources for 'ppsspp' : PlayStation Portable emulator PPSSPP
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git clone --recursive --depth 1 --branch v1.5.4 "https://github.com/hrydgard/ppsspp.git" "/home/karatosor/RetroPie-Setup/tmp/build/ppsspp/ppsspp"
Cloning into '/home/karatosor/RetroPie-Setup/tmp/build/ppsspp/ppsspp'...
Note: checking out 'a1e74d0d4f89ba3fa2d4fe64bac7a0fa16fc146f'.

github ppsspp my article

mitu

@kara Because newer versions are buggier and crash during save/load. You can compile a newer version by changing the scriptmodule, this way you can see if it compiles on the XU4 - but you should also test it to see if it works ok.

kara

There is an article of Odroid Magazine dating from November 1, 2018, so relatively recent, which details the installation procedure of ppsspp on an Odroid xu4. The version as of 1 November 2018 is 1.7.4. Much more recent version than 1.5.4. It seems to work well on Odroid xu4 but requires a whole installation procedure!

article Odroid Magazine

mitu

@kara The scriptmodule should have all the necessary steps - as outlined in the article - coded so that you can just use the instructions I posted earlier to compile/install (with retropie_packages.sh) and just change the release version from 1.5.4 to a more recent one. But, as I said, if compiling and installation works, then give it a try to see how it actually runs.

kara

I tried just by changing the version in the script but there are patches that are applied that cause errors (diff), I will try to compile it apart and test it in its latest version to see if it works.

thank you for your help mitu, it is precious to me

I will test with bomberman land :) I love this game!

mitu

@kara You can comment out the patches in the scriptmodule, I think they're not needed in recent versions. But it's better to enjoy some games rather than watching compilation messages fly by :).

kara

I managed to compile it under odroid Xu4 in its latest version, it needed the library sdl2, to avoid the segmentation fault at runtime.

It runs but with an error message:

E: VulkanLoader.cpp:339: Failed to create vulkan instance.
Vulkan is not availabe.
Failed to initialize SDL with joystick support. Retrying whitout.
Unable to initialize SDL: No available video device

I used this article to compile ppsspp

kara

The gpu Mali T628 of the Odroid xu4 does not seem to support Vulkan, an idea to compile ppsspp without Vulkan but rather openGL?

kara

we are progressing, I had the creator online, it seems that the detection of Vulkan is not going well. It should switch to OpenGL, it does not. The bug is referenced, I'm waiting for its correction!

kara

There seems to be another problem, the programmers on the hrydgard github tell me about the impossibility of running sdl2 without x11. It is necessary to recompile the sources of sdl2 with the kmsdrm option activated.

Do you have an idea about what kmsdrm is and what additional options should I use?

kara

does Retropie start in a particular window system? do i really need to install sdl2 with kmsdrm?

mitu

@kara I'm not sure how it's on the XU4, but on the PI there is no Windows environment needed. I don't know the details about the feedback you got from the upstream repo, but SDL can certainly run without X11 and (at least) on the PI it works only like this.

kara

Thank you mitu, I will test an integration "like that", without modifying sdl2, in retropie and see if it starts, i will keep you informed !

kara

excuse me if I do not give a lot of news about Odroid Xu4 trials, but I'm sick (cancer), I'm in remission, but the treatments are still heavy, I'm doing this on my free time, when I'm not suffering not too much !

neonlightning

i'm not sure what has been changed to get it to work. but i know the TheRA is runing commit version 0b9c212 at the time of me writing this.

kara

Compiled in its latest version, installed on retropie, I will test it this week! thanks a lot !