is it possibile to install vulkan on retropie ?

[giandeejay]

Hi now with pikiss and pixeldesktop launched by retropie 4.7.20 (latest) is it possibile to integrate vulkan driver on emulationstation?
I have installed on my pi4 retropie+emulationstation+pixeldesktop+pikiss+vilkan driver +ppsspp
On desktop ppsspp works with vulkan and all my games, on emulationstation ppsspp wont looks for vulkan driver...
It seems like retroarch (launched by emulationstation) won't works with vulkan (but vulkan driver are installed).
Instead if i quit emulationstation and launch pixeldesktop and next i launch ppsspp it works with vulkan driver..
There is a method to integrate it on retroarch in emulationstation ?

[mitu]

@giandeejay said in is it possibile to install vulkan on retropie ?:

It seems like retroarch (launched by emulationstation) won't works with vulkan (but vulkan driver are installed).

The RetroPie setup script doesn't enable Vulkan on Pi systems, since Raspi OS doesn't provide them on the version supported by RetroPie (Buster).
If you manually installed a new Mesa version (with the Pi4 Vulkan driver) then you'll also need to modify the RetroArch install script and enable Vulkan, then re-install it from source.

[giandeejay]

@mitu said in is it possibile to install vulkan on retropie ?:

need to modify the RetroArch install script and enable Vulkan, then re-install it from source.

How I can modify ?
what piece of code i must modify on retroarch.sh ?

Thanks

[mitu]

@giandeejay said in is it possibile to install vulkan on retropie ?:

How I can modify ?

You can modify your local retroarch.sh copy (the build function) and remove the --disable-vulkan configure parameter, after which you can build RetroArch again from source and check if it has Vulkan support.

[giandeejay]

@mitu sorry but i cannot find --disable-vulkan in build function the only one is commented , maybe you mean i Must add --enable-vulkan if kms ? Or if RPI ?
But where in the code ? What line?

function build_retroarch() {
local params=(--disable-sdl --enable-sdl2 --disable-oss --disable-al --disable-jack --disable-qt)
if ! isPlatform "x11"; then
params+=(--disable-pulse)
! isPlatform "mesa" && params+=(--disable-x11)
fi
if compareVersions "$__os_debian_ver" lt 9; then
params+=(--disable-ffmpeg)
fi
isPlatform "gles" && params+=(--enable-opengles)
if isPlatform "gles3"; then
params+=(--enable-opengles3)
isPlatform "gles31" && params+=(--enable-opengles3_1)
isPlatform "gles32" && params+=(--enable-opengles3_2)
fi
isPlatform "rpi" && isPlatform "mesa" && params+=(--disable-videocore)
# Temporarily block dispmanx support for fkms until upstream support is fixed
isPlatform "dispmanx" && ! isPlatform "kms" && params+=(--enable-dispmanx --disable-opengl1)
isPlatform "mali" && params+=(--enable-mali_fbdev)
isPlatform "kms" && params+=(--enable-kms --enable-egl)
isPlatform "arm" && params+=(--enable-floathard)
isPlatform "neon" && params+=(--enable-neon)
isPlatform "x11" && params+=(--enable-vulkan)
! isPlatform "x11" && params+=(--disable-vulkan --disable-wayland)
isPlatform "vero4k" && params+=(--enable-mali_fbdev --with-opengles_libs='-L/opt/vero3/lib')
./configure --prefix="$md_inst" "${params[@]}"
make clean
make
md_ret_require="$md_build/retroarch"
}

[sleve_mcdichael]

@giandeejay said in is it possibile to install vulkan on retropie ?:

But where in the code ? What line?

! isPlatform "x11" && params+=(--disable-vulkan --disable-wayland)