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enricobuehlerandClaude Fable 5 087e7d0405 fix(inject/windows): map absolute input over the streamed output's rect, not the whole desktop
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Pen, touch, and absolute mouse arrive normalized to the STREAMED display's
frame, but pointer_windows::to_screen and sendinput's MouseMoveAbs mapped
them over the whole virtual desktop — correct only when the virtual display
is the sole active display (Exclusive topology). In Extend — a physical
monitor kept on beside the virtual output, or an Exclusive isolate degraded
to the 0x57 keep-physicals fallback — the streamed output sits at a non-zero
origin, so every sample landed shifted and mis-scaled. The pen exposed it
first (field report 2026-07-24): a stylus is strictly absolute, with no
closed-loop correction onto the target like a cursor.

New pf-inject::stream_target (Windows): the host publishes the streamed
output's CCD target id at capture bring-up (one central site —
capture_virtual_output covers the native and GameStream planes); mapping
sites resolve its current desktop rect through pf-win-display's
source_desktop_rect — the same resolver the cursor-readback poller uses, so
inject and readback always agree — TTL-cached (250 ms) because a
group-layout re-arrange moves a live output's origin mid-session. No target
set / never resolved falls back to the whole virtual desktop (the historical
mapping, still right for Exclusive topology and devtest).

One change in to_screen covers pen + touch; MouseMoveAbs converts the same
desktop pixel into the 0..65535 MOUSEEVENTF_VIRTUALDESK coordinate, closing
the identical latent absolute-mouse bug (apollo-comparison open item #14/#30).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-24 17:38:36 +02:00
enricobuehlerandClaude Opus 4.8 24a24734eb fix(inject/windows): follow the input desktop for pen + touch injection
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Same field report as the display-write fix, other half of the symptom: with a
UAC consent prompt up — one the user could SEE in the stream, because capture
already renders the secure desktop (326d6e17) — pen and touch did nothing,
while mouse and keyboard kept working.

The split was exactly which paths knew the input desktop can move. sendinput.rs
reattaches, so mouse/keyboard reached the prompt. pointer_windows.rs had no
desktop handling at all, so every InjectSyntheticPointerInput came back
ERROR_ACCESS_DENIED:

    22:20:31  virtual pen created (PT_PEN)
    22:20:31  pen inject failed    error=Zugriff verweigert (0x80070005)
    22:20:42  touch inject failed  error=Zugriff verweigert (0x80070005) contacts=1

Measured on glass before fixing, to find out what it actually takes:

    device on Default, thread on Default  -> 0x80070005   (the field failure)
    device on Default, thread on INPUT    -> OK
    device on INPUT,   thread on INPUT    -> OK

The middle row is load-bearing: the synthetic pointer device is NOT
desktop-affine, so rebinding the thread suffices and the device is never
destroyed and recreated across a desktop switch — which would have dropped
in-flight contacts and the pen's in-range state mid-stroke.

Injection now retries once bound to the input desktop. The binding is scoped,
not persistent like sendinput's: inject_pen/inject_touch_frame run on TWO
threads (the caller's apply_batch and the refresh threads), and the batch caller
is a shared task thread that must not be left parked on a Winlogon desktop that
disappears when the prompt is dismissed.

The first-failure WARN now carries the rejected sample (flags, pen flags/mask,
pressure, rotation, tilt, position). A 0x80070057 INVALID_PARAMETER was seen
once BEFORE any prompt existed and is still unexplained; the ranges all look
sound on inspection (coordinates clamped to the virtual screen, roll/azimuth
u16 so the modulo cannot go negative, tilt bounded 0..=90), so catching the
actual offending sample is the way to find it.

Verified on glass: with a consent prompt up, pen and touch now reach it — zero
inject failures where every prior session failed immediately. A UAC prompt can
now be dismissed from an iPad with the Pencil.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-24 00:36:51 +02:00
enricobuehlerandClaude Fable 5 bf2c4456bb fix(inject/windows): compact wire touch ids into slots — Moonlight native touch injected nothing
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On-glass report (iPad Moonlight vs the Windows host): pen inked, native touch
did nothing. Cause: POINTER_INFO.pointerId was the client's raw wire id —
Moonlight sends arbitrary large pointerIds, and synthetic-pointer injection
rejects them (Apollo compacts ids into dense slots for exactly this reason);
the failure was logged at trace, i.e. invisibly. Wire ids now map to the
lowest free slot for the contact's lifetime, and the FIRST injection failure
of a device logs at WARN (pen too) so an inert input plane is never silent
again.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-23 16:48:57 +02:00
enricobuehlerandClaude Fable 5 45c9799aa6 feat(inject/windows): pen P3 — PT_PEN + PT_TOUCH synthetic pointer injection
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The Windows leg of design/pen-tablet-input.md §6, following Apollo's recipe:
a per-session PT_PEN device (pressure rescaled 0..1024, polar tilt→tiltX/Y,
barrel roll on rotation — Windows Ink renders Pencil Pro roll natively, barrel
button, eraser via INVERTED/ERASER flags, hover) with a 40ms refresh thread
against the ~100ms synthetic-pointer staleness auto-lift, plus a PT_TOUCH
device closing the historical SendInput wire-touch no-op (full active-contact
frames, per-id DOWN/UP edges, self-healing lost-DOWN synthesis). pen_supported
now probes PT_PEN creation on Windows (1809+), which lights up HOST_CAP_PEN
and the GameStream featureFlags there — Moonlight iPad + Pencil can ink on a
Windows host. Frame grouping mirrors the Linux uinput backend.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-23 16:18:31 +02:00
enricobuehlerandClaude Fable 5 abe6228b42 feat(core+host+android): committed-text input plane (IME path) — InputKind::TextInput
The VK key-event vocabulary cannot express text an input method COMMITS
(autocorrect, gesture typing, non-Latin scripts, emoji). Add a first-class
text event and negotiate it:

- punktfunk-core: InputKind::TextInput (= 15) carries one Unicode scalar per
  event in `code`; HOST_CAP_TEXT_INPUT (0x04) in Welcome::host_caps.
- Host advertises the cap only where the session's inject backend can type
  text: Windows SendInput (KEYEVENTF_UNICODE, surrogate-pair aware) and the
  Linux wlroots backend — a dedicated second zwp_virtual_keyboard whose xkb
  keymap grows Unicode keysyms on demand (the wtype model), so keymap
  re-uploads never disturb the main device's layout/modifier state. The
  KWin-fake-input/libei/gamescope backends can only press layout keycodes, so
  those sessions don't set the bit and clients keep the VK fallback.
- GameStream plane: Moonlight's UTF-8 text packet (MAGIC_UTF8, previously
  recognized-and-dropped) now decodes to the same TextInput events.
- Android: KeyCaptureView picks a real editable InputConnection when the host
  has the cap — the IME runs its full machinery, mirrored to the host live via
  common-prefix diffs of the composition (backspaces + new suffix), with
  setComposingRegion adopting committed text so autocorrect-revert flows diff
  instead of retyping; newline→Enter, deleteSurroundingText→Backspace/Delete.
  Older hosts keep the TYPE_NULL raw-key path unchanged.
- keymap: media VKs (0xB0-0xB3) → evdev so the Android media keys land on
  Linux hosts too.

Verified: punktfunk-core + host gamestream + pf-inject tests green on Linux
(Ubuntu box), clippy clean; Android app+native builds.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 19:19:11 +02:00
enricobuehlerandClaude Opus 4.8 134fba1424 fix(inject): heap the SwDeviceCreate callback context; stop latching a pad slot on a failed create
Two medium findings from the round-1 sweep, each applied to both siblings.

- create_swdevice stack-allocated the SwCreateCtx that the async PnP completion
  callback writes through (result + up to 127 u16 of instance id) and then
  SetEvents. The wait is bounded at 10s, so on a wedged-PnP timeout the callback
  can still be PENDING: the frame is popped, the input thread reuses that stack,
  and a late callback corrupts it and SetEvents an already-closed (possibly
  recycled) handle. The context is now heap-allocated and reclaimed only where
  the callback provably ran; on the timeout path the box is deliberately leaked
  and the event left open, so a late write always targets live memory. Costs a
  one-off ~264 B + one HANDLE on that rare path. Applied to the DualSense path
  and its XUSB sibling in gamepad_windows.rs.

- Ds4WinPad::open swallowed a create_swdevice failure into a WARN and returned
  Ok with no devnode. PadSlots::ensure then stored Some(pad) AND called
  gate.on_success(), so the slot short-circuited on is_some() forever and the
  capped-backoff retry that exists precisely to self-heal a transient PnP failure
  never ran — the game saw no controller for the rest of the session unless the
  client unplugged the pad. Now propagates, matching the XUSB sibling. Same fix
  applied to steam_deck_windows.rs.

Windows .173: pf-inject 53/0. Linux .21: pf-inject 74/0 (8 ignored).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-19 23:19:19 +02:00
enricobuehlerandClaude Fable 5 9e6fc6e071 fix(host/inject,drivers): rumble root fixes A-C — lossless report ring + rumble-keyed idle watchdogs
B: PadFeedback.game_drove -> rumble_drove, keyed on vibration-asserting reports — an
LED/adaptive-trigger stream can no longer feed the abandoned-rumble force-off while a
coalesced stop never re-asserts (the confirmed unbounded stuck-ON path). C: Linux parity —
every UHID backend now arms the shared watchdog (Steam Input drives these pads over hidraw
with Windows abandonment semantics) and the uinput mixer force-stops abandoned
infinite-replay FF effects (FfState, unit-tested). Shared PUNKTFUNK_RUMBLE_IDLE_MS hatch
(0 = off; non-zero floored above SDL's ~2 s rumble resend).

A: PadShm v2.1 — a 1024 B tail extension carrying an 8-slot lossless output-report ring,
feature-negotiated via zeroed reserved fields (out_ring_ver; deliberately NO
GAMEPAD_PROTO_VERSION bump — mixed generations degrade to the legacy latest-report slot
instead of failing closed). The pf-dualsense driver dual-writes both planes
(publish_output); the host's shared OutputDrain drains oldest->newest with a torn-read
recheck and an overflow->resync path (PadFeedback.resync force-stops + re-arms dedups).
pf-umdf-util grows a min_data_size map fallback. Ds*Feedback.fresh removed (dead).

design/rumble-root-fix.md par. A-C. Verified: pf-inject tests+clippy Linux+Windows (53/53
on winbox incl. the stop-coalesce repro); drivers ws check+clippy on the CI runner.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 14:07:32 +02:00
enricobuehlerandClaude Opus 4.8 f6c6e4e594 refactor(host/W6.2): extract the input-injection backends into the pf-inject crate
inject.rs + inject/* (the per-OS injectors — wlroots virtual-input, KWin
fake_input, libei/reis, gamescope-EI on Linux; SendInput on Windows — plus the
virtual-gamepad HID stack: DualSense/DualShock4/Switch Pro/Steam Controller/Deck
over uhid/usbip and the Windows UMDF drivers, the proto codecs, the injector
service, and the uhid manager) move into crates/pf-inject behind the
InputInjector trait (plan §W6). It consumes punktfunk_core::input (the neutral
GamepadEvent/InputEvent vocabulary, moved to core in W5) + the pf-driver-proto
wire contract, and reaches pf-capture only for the Windows gamepad-channel
WUDFHost check + the resident-mouse compose-kick hook.

The one inject->vdisplay coupling (the libei gamescope-EI backend needs the EIS
relay socket path) is broken via a leaf: gamescope_ei_socket_file moves to
pf-paths as the shared contract — the gamescope producer (host vdisplay) keeps
its session-env-lock wrapper around it, the libei consumer (pf-inject) reads it
directly post-retarget. The host keeps a `mod inject { pub use pf_inject::* }`
shim so every crate::inject::* path (the native/gamestream input planes + devtest)
is unchanged; the heavy input deps (wayland/reis/xkbcommon/usbip + the KWin
fake-input protocol XML) moved with the crate.

Verified: Linux clippy -D warnings (pf-inject + host nvenc,vulkan-encode,pyrowave
--all-targets) + pf-inject 69/69 + host 230/230 tests; Windows clippy -D warnings
(pf-inject --all-targets + host nvenc,amf-qsv --all-targets) Finished exit 0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-17 11:52:02 +02:00