feat(host/windows): ViGEm virtual gamepad backend

Windows GamepadManager via vigem-client (ViGEmBus) — the uinput-xpad analogue: one virtual Xbox 360 controller per client pad index, created lazily on first State. GameStream/Moonlight already uses the XInput conventions (low-16 button bits, sticks -32768..32767 +Y up, triggers 0..255), so the GamepadFrame->XGamepad mapping is 1:1. Replaces the non-Linux GamepadManager stub (same new/handle/pump_rumble API the m3 PadBackend drives, so no m3 change). Graceful when ViGEmBus is absent (gamepad disabled, session continues). Compiles clean on Windows + Linux; live-test needs the ViGEmBus driver + a physical pad. Rumble back-channel is a TODO (ViGEm notification API). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 01:46:51 +00:00
parent 1a9a733f02
commit 8cba886c17
4 changed files with 110 additions and 2 deletions
@@ -298,8 +298,12 @@ fn gs_button_to_evdev(b: u32) -> Option<u32> {
 pub mod dualsense;
 #[cfg(target_os = "linux")]
 pub mod gamepad;
-/// Stub — virtual gamepads need Linux uinput; events are dropped elsewhere.
-#[cfg(not(target_os = "linux"))]
+/// Windows: virtual Xbox 360 pads via ViGEmBus.
+#[cfg(target_os = "windows")]
+#[path = "inject/gamepad_windows.rs"]
+pub mod gamepad;
+/// Stub — virtual gamepads need Linux uinput or Windows ViGEmBus; events are dropped elsewhere.
+#[cfg(not(any(target_os = "linux", target_os = "windows")))]
 pub mod gamepad {
    #[derive(Default)]
    pub struct GamepadManager;