some questions regarding q2pro on linux

[fishxz]

hey,
im currently maintaining https://github.com/flathub/com.github.skullernet.q2pro and i would like to ask, if you would like to participate.
flatpak is a easy way to provide binaries for linux, which q2pro is currently missing.

there are some issues im currently running in:

1. wayland doesnt work. the game starts, but there is no window (game is running in the background), just the icon in the taskbar.

   /var/home/danielschenkenberger/.var/app/com.github.skullernet.q2pro/data/baseq2/pak0.pak
   ------- FS_Init -------
   Current search path:
   /var/data/baseq2/pak2.pak (2 files)
   /var/data/baseq2/pak1.pak (279 files)
   /var/data/baseq2/pak0.pak (3307 files)
   /var/data/baseq2
   /app/bin/baseq2
   3588 files in PAK files
       -----------------------
   Execing default.cfg
   Execing config.cfg
   ------- S_Init -------
   Could not open /dev/dsp: No such file or directory
   Using SDL audio driver: pulseaudio
   sound sampling rate: 22050
   ----------------------
   ------- R_Init -------
   Detected OpenGL 4.6 (compatibility profile)
   Loaded extension GL_ARB_fragment_program
   Loaded extension GL_EXT_compiled_vertex_array
   Using GLSL rendering backend.
   ----------------------
   cl_maxfps value `60' is inexact, using `62' instead.
   (Set `cl_warn_on_fps_rounding' to `0' to disable this warning.)
   SDL mouse initialized.
   ====== Q2PRO initialized ======
   
   q2pro r666, Feb  9 2022
   https://github.com/skullernet/q2pro
   

2. im not sure how to deal with paths.

   CONFIG_PATH_DATA=/app/bin
   CONFIG_PATH_LIB=/app/bin
   CONFIG_PATH_HOME=/var/data
   

   this only allows to load game libraries from /app/bin (which shouldnt be modified by user), but the game should look for both "PATH_LIB" and "PATH_HOME" (so user can install there own game libaries).
   the reason is why i use "/app/bin" for the lib path, is because this way im able to ship the default "gamex86_64.so" and "q2pro.menu" with the pakage.

3. q2pro on linux could use a better icon, than the current low res one.
   currently im using this one: https://github.com/flathub/com.github.skullernet.q2pro/blob/master/q2pro.svg

[darkshade9]

Hey @fishxz we're setting a specific directory only for CONFIG_PATH_DATA and CONFIG_PATH_HOME so that q2pro knows where to look for game assets, see this build config for an example:
https://github.com/actionquake/distrib/blob/main/build/linux/config_linux64

[skullernet]

1. There is native Wayland video driver now that may work slightly better than SDL (at least it should display something).
2. I've added code that tries to load game*.so from homedir first and then falls back to libdir.
3. How is that icon file licensed? Who made it?

[fishxz]

1. There is native Wayland video driver now that may work slightly better than SDL (at least it should display something).

wayland works now, but typing in console is very slow and sometimes keypresses get registered multiple times.
windows decortation doesnt work on gnome, should be fixable by adding https://gitlab.gnome.org/jadahl/libdecor

2. I've added code that tries to load game*.so from homedir first and then falls back to libdir.

very useful change... works as intended.

3. How is that icon file licensed? Who made it?

i took the icon from the yamagi q2 project and changed the color to match q2pro.

More details here:
flathub/flathub#1658

[fishxz]

after testing wayland a bit, the following things i noticed:

1. console is super slow as long no game is loaded or while connecting to a server, which also slows down downloads... typing in console while connecting brings it back to normal speed. (ingame the console works as intended)
2. s_auto_focus 1 doesnt mute the game while minimized, but 2 works (also a problem on x11).
3. assuming you want sound in background, the game is rly rly slow while minized/unfocused, which means the sound stutters, which makes background sound useless.
4. on x11 the game now respect the keyboard layout of your language, which is not good.

[skullernet]

windows decortation doesnt work on gnome

This is expected, as Gnome doesn't implement XDG decoration protocol.

console is super slow as long no game is loaded or while connecting to a server

Odd, this didn't happen during my testing on Debian 11 with Sway and in Fedora 36 VM with Gnome.

s_auto_focus 1 doesnt mute the game while minimized, but 2 works (also a problem on x11).

Both native X11 and Wayland backends don't detect window minimization currently. It doesn't seem to be possible on Wayland at all, but might be possible on X11, but I couldn't find straightforward way to do it. Does this even work with SDL on X11? Grepping for SDL_WINDOW_MINIMIZED state in SDL X11 video driver sources returns nothing.

the game is rly rly slow while minized/unfocused

This didn't happen for me. Might be something to do with how vsync works on Wayland.

on x11 the game now respect the keyboard layout of your language, which is not good.

Works for me fine, but I assume there may be issues with how X server maps keycodes to keysyms. Might be possible to switch to raw evdev keycodes on Linux.

[fishxz]

Odd, this didn't happen during my testing on Debian 11 with Sway and in Fedora 36 VM with Gnome.

on my 60hz screen the typing is fine, but there core problem still exist... if you connect to a server it kinda slows down and if server set "sv_force_reconnect" you kinda in a loop until you type in console, same for downloads...

This didn't happen for me. Might be something to do with how vsync works on Wayland.

not sure about that... it doesnt stutter anymore because of slowness, but it plays the last sound before minimize in a loop.

my main screen is 144hz btw.

[skullernet]

I've added a hack to allow SDL video driver to work with Wayland. Let me know if it behaves better than native Wayland driver, so that it can be prioritized by default.

As for native Wayland driver issues, does disabling gl_swapinterval change anything?

s_auto_focus 1 doesnt mute the game while minimized

Should work on X11 now, but not on Wayland.

on x11 the game now respect the keyboard layout of your language, which is not good.

Should be fixed now.