[Bug 59485] New: Everquest Mouse clicks via Gamescope with multiple concurrent instances under wayland/kde

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59485

            Bug ID: 59485
           Summary: Everquest Mouse clicks via Gamescope with multiple
                    concurrent instances under wayland/kde
           Product: Wine-staging
           Version: 11.1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail], [e-mail]
      Distribution: ---

Created attachment 80481
  --> http://bugs.winehq.org/attachment.cgi?id=80481
Stand alone fix blunt force on directx8

I ran into this issue running EverQuest under Wine 11.1 inside gamescope
(multiple concurrent instances on Wayland/KDE Plasma 6). Mouse movement works
but clicks are completely dead in-game.

Traced it to dlls/dinput/mouse.c — DirectInput8 enables use_raw_input which
routes button events through XI2 RawButtonPress. Gamescope's XWayland
translates wl_pointer.button into core X11 ButtonPress but doesn't generate XI2
RawButtonPress events (those come from xf86-input which isn't wired to the
Wayland pointer protocol). So DirectInput8 sees motion via XI2 RawMotion but
never gets button events.

Disabling use_raw_input for DirectInput8 forces the WH_MOUSE_LL hook fallback
which reads standard WM_LBUTTONDOWN/WM_RBUTTONDOWN from core X11 ButtonPress —
those work fine under XWayland.

Attaching a patch against Wine 11.1. It's a blunt workaround (unconditionally
disables raw input for dinput8 mouse) — a proper fix would probably detect
whether XI2 RawButtonPress is actually available at runtime and fall back
automatically.

To reproduce:

  # Wine prefix with EverQuest installed at drive_c/EverQuest/
  export WINEPREFIX=~/eq-prefix

  # eqclient.ini must have: Width=1920, Height=1080, Fullscreen=1

  # Launch under gamescope with --force-grab-cursor:
  gamescope -w 1920 -h 1080 -W 1920 -H 1080 --backend sdl --force-grab-cursor
-- \
      wine eqgame.exe patchme

  # Mouse movement works, clicks do nothing.
  # Launch a second instance in another terminal and the issue is consistent.
  # Without gamescope (plain: wine eqgame.exe patchme) clicks work fine.

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