Commit Graph
914 Commits
Author SHA1 Message Date
enricobuehlerandClaude Opus 4.8 e59634a578 feat(windows/capture): GDI cursor-shape poller — masked/monochrome cursors for the cursor channel
The M2c redesign (design/remote-desktop-sweep.md §8): the IddCx hardware-
cursor query is alpha-only by design — IDDCX_CURSOR_SHAPE_TYPE has no
monochrome value, the OS pre-converts monochrome to masked-color, and
masked-color delivery is dead code on modern builds (proven on-glass at
every ColorXorCursorSupport level). The driver keeps its hardware cursor
declared (XOR FULL) purely so DWM excludes every cursor type from the
IDD frame; the SHAPE now comes from a GDI poller in the capture host —
which runs as SYSTEM inside the interactive session, so no helper
process is needed.

CursorPoller (idd_push/cursor_poll.rs, the RustDesk/WebRTC/OBS pattern):
~60 Hz GetCursorInfo on a dedicated thread; rasterise via
CopyIcon→GetIconInfo→GetDIBits only when the HCURSOR value changes;
monochrome via the WebRTC truth table with invert pixels as opaque black
plus a white outline; AND-mask alpha for alpha-less color cursors;
CURSOR_SUPPRESSED = hidden; per-output visibility via the target's
desktop rect; per-monitor-V2 DPI awareness thread-scoped; input-desktop
reattach on failure + 2 s cadence (GetCursorInfo on a stale desktop
succeeds with stale data). Spawned iff the cursor channel was delivered;
a live poller is the sole overlay source (no serial-namespace mixing) —
the driver shm read remains as fallback if the poller dies.

Not chosen: DXGI Desktop Duplication GetFramePointerShape —
PointerPosition.Visible goes stale under injected-only input on current
Win11 (Sunshine #5293, exactly our topology), it burns one of the
session's four duplication slots, and IDD-output metadata has
conflicting field reports.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-22 23:43:23 +02:00
enricobuehlerandClaude Fable 5 a99ef7f940 fix(windows): hw_cursor_capable must not assume an initialised display manager
The FIRST session's Welcome runs before any backend construction
(vdisplay::open happens at display prep, after the Welcome), so the
capability probe's vdm() expect panicked the very first handshake of a
fresh service — the client saw a dead connect and auto-wake kicked in.
init() is idempotent and the driver facade is a unit struct, so the
probe now initialises the manager itself. Found on-glass (.173, first
Mac-client connect), fix deployed there.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 23:43:23 +02:00
enricobuehlerandClaude Fable 5 ec8ca9a535 feat(apple): cursor channel on the Mac client — ABI v11 + NSCursor rendering
The Mac client now exercises the full cursor channel against capable
hosts: desktop-mode sessions advertise CLIENT_CAP_CURSOR, the host
stops compositing the pointer, and StreamView draws the forwarded
shapes as the real NSCursor — plus the M3 host-driven model flip.

- ABI v11: punktfunk_connect_ex9 (adds client_caps; ex7/ex8 pass 0 —
  Android untouched), PunktfunkCursorShape/State + the two
  next_cursor_* poll fns (audio-style borrow contract), and
  PUNKTFUNK_CLIENT_CAP_CURSOR. Fixed in passing: the first insertion
  split next_host_timing's cfg/no_mangle attributes off the fn, which
  silently dropped the symbol from the header AND dylib — caught by
  the Swift build, reattached with its docs.
- PunktfunkConnection: clientCaps connect param, hostSupportsCursor,
  CursorShapeEvent/CursorStateEvent + nextCursorShape/nextCursorState
  (one cursor thread drains both planes; cursorLock joins the close()
  ladder).
- SessionModel: desktop-mode sessions (DefaultsKey.mouseMode) connect
  with the cursor cap on macOS.
- StreamView: shape cache (serial → NSCursor, straight-alpha RGBA via
  CGImage), resetCursorRects wears the HOST shape while the desktop
  model is engaged (hidden host pointer ⇒ invisible), latest-wins
  state pump, and the M3 auto-flip — edge-triggered on relative_hint,
  ⌃⌥⇧M sets an override latch cleared by the next host edge, leaving
  relative warps the pointer to the host position via the inverse
  letterbox mapping (CGWarpMouseCursorPosition, CursorCapture's
  coordinate convention).

Verified: swift build + full test suites green (xcframework rebuilt at
ABI v11, signed); core 218 tests + clippy -D warnings on Linux (.21).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 23:43:23 +02:00
enricobuehlerandClaude Fable 5 3a34440a6b feat(windows): IddCx hardware-cursor channel — remote-desktop sweep M2c
Brings the cursor channel to Windows hosts. The pf-vdisplay driver
declares an IddCx hardware cursor for sessions that negotiated
cursor-forward — DWM then EXCLUDES the pointer from the IDD frame and
delivers shape/position out-of-band, into the same CursorOverlay →
forwarder → wire → client pipeline the Linux portal path uses.

- pf-driver-proto v5 (additive, host floor stays 3): AddRequest's spare
  tail becomes hw_cursor (same size/offsets); IOCTL_SET_CURSOR_CHANNEL
  delivers a host-created CursorShm section (64-byte seqlock header +
  256² shape buffer, layout pinned + tested). No event crosses the
  boundary — the host polls at encode-tick pace.
- driver: wdk-iddcx grows the two cursor DDI wrappers; a per-monitor
  cursor worker (event wait → QueryHardwareCursor → seqlock publish)
  starts only when BOTH the ADD asked and the channel arrived, so a
  failed delivery leaves DWM compositing as today. Shape bytes ship raw
  (BGRA/masked + pitch); the host converts.
- host: the section rides the existing sealed-channel broker (least-
  privilege dup, remote reap on failure); IddPushCapturer::cursor()
  seqlock-reads → CursorOverlay (BGRA→RGBA, masked-color approximation,
  desktop→frame origin shift, per-shape conversion cache). New
  Capturer::cursor() trait hook — the encode loop prefers it over the
  frame-attached overlay because hardware-cursor moves produce NO new
  frame on a static desktop. hw_cursor survives the re-arrival resize
  (carried on the manager's Monitor).
- negotiation: cursor_forward grows the Windows arm (client cap ∧
  driver proto ≥ 5, probed once via the control device); SessionPlan
  carries cursor_forward → OutputFormat.hw_cursor.
- drive-by: wdk-probe's two pre-existing same-type casts (clippy) and
  pf-vdisplay's stale spike-test refs (crate::win_display moved to
  pf-win-display; tracing-subscriber was never a dep) repaired.

Verified: proto tests on Mac AND MSVC (15/15 incl. the CursorShm
layout pin); clippy -D warnings for proto/frame/capture/vdisplay/host
on Linux (.21) and native Windows (.173); the DRIVER workspace clippy
-D warnings green against the real WDK 10.0.26100 bindgen (DDI names,
enum variants and IDARG layouts all bind). On-box driver deploy +
on-glass validation follow.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 23:43:23 +02:00
enricobuehlerandClaude Fable 5 c3cbffe662 feat(host+client): host-driven mouse-model flip — remote-desktop sweep M3
The full Parsec model: launching a game from a desktop session flips the
client into captured relative automatically, and back — no chords.

- Capture overlay now distinguishes 'hidden' from 'no cursor yet':
  CursorOverlay grows a visible flag, overlay() returns Some whenever a
  bitmap is known (the encode loop strips invisible overlays after
  forwarding so no blend path ever draws one; the CPU composite guarded
  on visibility already).
- Host forwarder maps it onto the reserved wire bit: visible ⇒ VISIBLE,
  hidden-but-known ⇒ RELATIVE_HINT (an app grabbed/hid the pointer),
  never any hint before the first bitmap — a cold start can't flip a
  desktop session into capture.
- Presenter: edge-triggered auto-flip on hint changes via the new
  Capture::set_desktop (chord semantics untouched); a manual ⌃⌥⇧M sets
  an override latch that holds until the HOST's intent next changes, so
  the hint never fights the user. Leaving relative warps the local
  cursor to the host's last pointer position through the new
  content_to_window inverse-letterbox mapping (unit-tested against
  finger_to_content) — the hand-back is seamless.

Verified on .21: fmt + clippy -D warnings + tests (presenter 20 incl.
the inverse-mapping roundtrip, host 245).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 23:43:23 +02:00
enricobuehlerandClaude Fable 5 4a01bc4463 feat(core+host+client): cursor channel — remote-desktop sweep M2a+M2b
The host cursor stops riding the video and becomes a real OS cursor on
the client (the Parsec/RDP model): pointer feel no longer pays the
capture→encode→network→decode→present round trip.

Wire (M2a):
- Hello grows a client_caps trailing byte (CLIENT_CAP_CURSOR) after the
  fixed display_hdr block — presence disambiguated by remaining length,
  which caps the post-HDR tail at 27 bytes (documented); Welcome answers
  HOST_CAP_CURSOR (capable-and-asked, the 444/clipboard precedent).
- CursorShape (0x50, control stream): serial + dims + hotspot + straight
  RGBA, ≤120px/side so the u16 frame always fits (128² would overshoot);
  client caches by serial — re-showing a known shape costs 14 bytes, not
  a bitmap (RDP pointer-cache for free).
- CursorState (0xD0 datagram): serial + visible/relative_hint flags +
  position, sent once per encode-loop tick — latest-wins, self-healing
  under loss, no refresh timer. relative_hint is reserved for M3.
- Client core: two new planes (control-task + datagram-task arms) →
  next_cursor_shape/next_cursor_state; connect() grows client_caps
  (C ABI passes 0 until the v11 cursor poll fns exist).

Host (M2b, Linux portal only):
- handshake::cursor_forward is THE predicate (client asked ∧ Linux ∧
  compositor ≠ gamescope) — Welcome bit and session wiring both read it.
- SessionPlan.cursor_blend goes false for a forwarding session; the
  encode loop ticks a CursorForwarder every iteration: shape-serial diff
  → control-task bridge (mirrors probe_result), state datagram → conn.
- CursorOverlay/capture CursorState carry the hotspot through
  (nearest-neighbor downscale backstop for XL cursors, unit-tested).

Presenter:
- CursorChannel drains both planes per loop iteration; shapes become
  SDL color cursors (from_surface + hotspot), applied while the desktop
  mouse model is engaged; visibility follows the host; capture/released
  hands back the system cursor. Sessions advertise the cap when they
  START in desktop mode.

Verified on .21: fmt + clippy -D warnings (7 crates) + tests green
(core 218 incl. new wire roundtrips, host 245 incl. e2e + forwarder
downscale tests).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 23:43:23 +02:00
enricobuehlerandClaude Fable 5 df04880273 feat(client/input): desktop (absolute) mouse mode — remote-desktop sweep M1
New physical-mouse model beside capture: Desktop leaves the pointer
uncaptured and sends absolute positions through the letterbox
(MouseMoveAbs — every host injector already consumes it). Capture
stays the default and the game model.

- pf-client-core: MouseMode (capture|desktop) persisted in Settings,
  default capture so existing stores are unchanged.
- pf-presenter: Capture grows a desktop model — latest-wins pending
  abs position coalesced per loop iteration (same 1000 Hz discipline
  as relative), flushed before clicks/keys/wheel so they land where
  the cursor is; Ctrl+Alt+Shift+M flips the model live; local cursor
  stays hidden over the window (the host's composited cursor is the
  one you see until the M2 cursor channel); Windows keyboard grab
  only engages for capture (a desktop stream is something you
  Alt-Tab away from).
- gamescope gating: its EIS is relative-only, so desktop mode is
  pinned off there (resolved_compositor), with a log note.
- Settings surfaces: GTK row (dynamic caption), WinUI combo,
  console-UI row + step test, capture-hint line.

Verified: fmt + clippy -D warnings + tests (33/40/19) on Linux .21;
clippy -D warnings for all five crates incl. punktfunk-client-windows
native on .173.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 23:37:32 +02:00
enricobuehlerandClaude Opus 4.8 0e7f6d85d6 feat(gamestream): signal HDR mode to the client via the 0x010e control message
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punktfunk negotiates HDR correctly (the stream is BT.2020 PQ 10-bit) but never
told the client to switch its display into HDR picture mode, so HDR streams
stayed in SDR on the TV. Sunshine sends an async control-stream message
(IDX_HDR_MODE, type 0x010e, carrying SS_HDR_METADATA) shortly after the stream
starts; Moonlight only flips the TV into HDR on that cue. We sent exactly one
host→client control message (rumble 0x010B) and never this one. (aurora-tv PR
#53 worked around it client-side by inferring HDR from the negotiated format;
this fixes it host-side so stock Moonlight clients switch too.)

Once the control stream is live and the session negotiated HDR, send a one-shot
0x010e message (enable + 26-byte SS_HDR_METADATA from generic HDR10 defaults),
latched per connection and re-armed on Disconnect. The rumble sequence counter
is unified into a single monotonic `host_seq` shared by both message types —
the GCM nonce derives from `seq`, so a separate per-type counter would reuse
(key, nonce) pairs in the host direction.

The BT.2020 PQ VUI already rides the bitstream (the encoder derives it from the
P010 capture format), so this is purely the missing "switch now" signal; no
encoder change needed. Wire layout locked by unit tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-22 21:35:16 +02:00
enricobuehlerandClaude Opus 4.8 2dddf0fefc fix(gamestream): accept legacy X.509 v2 Moonlight client certs in mTLS pairing
rustls-webpki 0.103 accepts only X.509 v3 certs and returns
`UnsupportedCertVersion` for anything older, aborting the mTLS handshake at
the `CertificateVerify` step before it ever checks the signature. The
moonlight-embedded client family (moonlight-embedded, aurora-tv, …) still mint
self-signed **v2** certs with no keyUsage extension, so pairing fails against
punktfunk while it works against Sunshine — whose OpenSSL verify callback never
inspects the cert version. (aurora-tv PR #53 worked around this client-side by
switching to v3 + keyUsage; this fixes it host-side for stock clients too.)

The cert's X.509 version and extensions carry no security weight here: the
client cert is self-signed and pinned by SHA-256 (`peer_is_paired`), and the PIN
pairing ceremony is the real proof of identity. The property that DOES matter —
that the peer holds the private key for the cert it presented — is still
enforced: when webpki rejects the cert we re-run exactly that `CertificateVerify`
check with a version-agnostic parser (x509-parser SPKI + the same `rsa` verify
`pairing::verify256` uses). This is a full cryptographic check, never a bypass:
a bad signature still fails, and non-RSA / unsupported schemes fall through to
webpki's original error. Matches Sunshine's leniency without loosening the
pinned trust model.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-22 21:35:03 +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 Fable 5 5e088af7ed fix(pf-win-display): unpin mode indexes on paths the CCD isolate deactivates
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Field report: with Exclusive Topology, the physical monitor sometimes stayed
lit — every isolate attempt re-committed and failed SetDisplayConfig with
0x57 ERROR_INVALID_PARAMETER. Clearing DISPLAYCONFIG_PATH_ACTIVE alone leaves
the deactivated path's source/target modeInfoIdx pinned to the queried mode
entries, and per the SetDisplayConfig contract a path being turned off must
have BOTH mode indexes set to DISPLAYCONFIG_PATH_MODE_IDX_INVALID; some
driver/topology combinations (notably when the doomed path shares a source
with the kept virtual path) reject the supplied config outright, so the
retry loop could never converge.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 12:26:44 +02:00
enricobuehlerandClaude Fable 5 b7a00137eb feat(host): hold a logind sleep/idle inhibitor while clients stream
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Remote INPUT resets the compositor's idle timers, but a passive
(video-only) viewer sends none — observed live: a SteamOS Game-Mode
host s2idled mid-day and dropped off the network (in a VM with GPU
passthrough it never woke again). Refcounted across planes: the native
LiveSessionGuard and the GameStream video worker each hold a share;
first hold takes the logind sleep:idle block inhibitor on a dedicated
plain thread (zbus blocking must not run on a tokio worker), last drop
releases. Best-effort: no logind → warn once and stream on. No-op off
Linux (macOS/Windows manage their own assertions).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 12:09:47 +02:00
enricobuehlerandClaude Fable 5 35923080fb fix(host/linux): scale degenerate-region absolute coords by the session's real output size
The raw-client-pixels fallback is exact only while the managed session
runs at the client's mode. When they diverge — foreign-gamescope
attach at its own resolution, supersample/under-render, transitions —
raw pixels drift or land out of range. The EIS relay file now carries
the session's current output size as a second "WxH" line (from
current_gamescope_output_size()); the injector scales normalized
client positions into it, keeping raw pixels only as the last resort.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 10:53:14 +02:00
enricobuehlerandClaude Fable 5 0c9461242c fix(host/linux): don't normalize absolute coords into gamescope's degenerate INT32_MAX EIS region
The previous commit's no-region fallback never fired: gamescope DOES
advertise a region — (0,0,INT32_MAX,INT32_MAX), meaning "coordinates
are raw". Mapping normalized positions into it explodes a center tap
to x≈1e9, clamped by gamescope to the far corner — the cursor pinned
at (1279,799) and every degraded-touch tap landing there. Treat a
region as an output geometry only when plausibly sized (≤16384 px);
otherwise emit raw client pixels.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 10:40:02 +02:00
enricobuehlerandClaude Fable 5 cc6b37fef0 fix(host/linux): emit absolute pointer/touch on region-less EIS devices + abs input-test probe
gamescope's "Gamescope Virtual Input" advertises pointer_abs but no
region, so every MouseMoveAbs (and the degraded-touch moves built on
it) was silently dropped (emitted=false) — clicks then landed at a
stale cursor position. With no region, the managed session runs at the
client's mode, so client pixels are output pixels: emit them raw.
Also: log region count/dims at device-resume, and add
PUNKTFUNK_INPUT_TEST_ABS=WxH to `input-test` (corners + center, 1s
apart) so the degraded-touch path is verifiable with xdotool alone.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 10:36:05 +02:00
enricobuehlerandClaude Fable 5 1927077cbe fix(host/linux): degrade touch to absolute pointer when the EIS has no touchscreen device
gamescope's EIS ("Gamescope Virtual Input") advertises pointer/
pointer_abs/button but never a touchscreen — so in Game Mode every
remote TouchDown/Move/Up was dropped on the floor (Desktop Mode works
via KwinFakeInput, which does touch). Headless KWin's libei has the
same gap. Instead of dropping: degrade to a single-finger absolute
pointer — down = abs-move + left press, move = abs-move, up = release —
synthesized through the normal Mouse* inject paths so region mapping,
held-state tracking, and release_all apply. First finger drives the
pointer; later fingers are ignored (a pinch degrades to a drag). A
touchscreen device appearing later takes over on the next touch —
checked per event, never latched.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 10:24:28 +02:00
enricobuehlerandClaude Fable 5 256aa5f7f2 fix(steamdeck): install the plugin runner + harden Deck pad typing + repair update.sh
- scripts/steamdeck/install.sh (§2b) + update.sh: build and install the
  scripting runner user-scoped (~/.local wrapper + pinned bun + bundle) —
  SteamOS's read-only /usr can't take the .deb layout, so the console's
  plugin store reported "the plugin runner isn't installed" on every
  SteamOS host. update.sh retrofits it onto existing installs.
- plugins.rs runner discovery: check the ~/.local layout after the /usr
  ones; mention the SteamOS path in the not-installed error.
- update.sh: define warn() — it was used but never defined, so under
  `set -e` the first warn aborted the update before services restarted.
- pf-client-core gamepad: a Steam Input virtual pad forwarded on a real
  Deck (the only-pad case) now declares the DECK kind in its per-pad
  arrival instead of the wrapper's Xbox 360 identity — the session-level
  auto_pref already resolved SteamDeck, but the arrival overrides it on
  current hosts.
- reject tests: cover SetupFailed; move the foreign-code probe off 0x68.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 10:01:54 +02:00
enricobuehlerandClaude Fable 5 2562663fc6 fix(host/linux): survive and self-heal dead gamescope sessions on headless SteamOS boxes
Three fixes for the "most connects simply fail" trap on a SteamOS host
with no physical display (VM testbox, panel-less mini PC):

- restore path: skip the restore-to-physical-panel when no DRM connector
  reports a connected display — removing the headless drop-in and
  restarting gamescope-session.target on such a box just crash-loops
  gamescope and strands every later connect on "no usable compositor".
  Keep the headless session (and the takeover state) instead.
- connect path: when no live graphical session exists but the MANAGED
  gamescope infra is present (SteamOS gamescope-session / Bazzite
  session-plus), route to the gamescope takeover — which rebuilds the
  session at the client's mode — instead of failing the connect.
- error delivery: a session-setup failure used to just drop the QUIC
  connection, reaching the client as "control stream finished mid-frame"
  (indistinguishable from transport trouble). Close with a typed
  setup-failed code (0x68, RejectedSetupFailed = -29) carrying the error
  text, and give the client handshake/pairing error paths a short grace
  for the CONNECTION_CLOSE to beat the stream error it caused.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 09:50:30 +02:00
enricobuehlerandClaude Fable 5 d36bec6e9d feat(core+host): negotiate ChaCha20-Poly1305 as the session cipher for soft-AES clients
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Lifts the ~100 Mbps decrypt ceiling on clients without hardware AES — the
armv7 soft-AES targets (webOS TVs), where AES-128-GCM resolves to fixsliced
software AES + software GHASH (~50-100 cpb) while ChaCha20-Poly1305's ARX
construction runs ~10-17 cpb portable, a 4-7x lift that PyroWave-on-TV needs
(design/chacha20-session-cipher.md).

Phase 1 (core crypto, no wire change): SessionKey merges cipher choice and
key material (invalid combinations unrepresentable, zeroize + redacted-Debug
discipline kept); SessionCrypto dispatches both aead-0.5 ciphers per call —
the salt||seq nonce scheme, per-direction salts, seq-as-AAD and replay
window carry over verbatim (same 96-bit nonce / 16-byte tag, const-asserted).
Config.key becomes SessionKey; validate's zero-key rejection follows the
active variant. The C ABI keeps its fixed 16-byte key mapped to AES — no
ABI_VERSION bump.

Phase 2 (negotiation): VIDEO_CAP_CHACHA20 (0x40) — support-plus-request in
one bit, the VIDEO_CAP_444 precedent. Welcome grows cipher@68 +
key_chacha@69..101, emitted only when non-zero so an AES session's Welcome
stays byte-identical to the pre-cipher form; decode is fail-closed (short
key or unknown id -> Err, never a silent AES fallback). No WIRE_VERSION
bump; downgrade resistance inherited from the pinned-TLS control channel.

Phase 3 (host): grant only when the client advertised the bit and the
PUNKTFUNK_CHACHA20 kill-switch (default on, documented) allows; fresh
32-byte per-session key from the same RNG discipline, legacy key field
stays independently random; resolved cipher logged at session start.

Verification: seal/open suites parameterized over both ciphers + a
cross-cipher tamper case; Welcome roundtrip/truncation/fail-closed tests;
ChaCha lossy-loopback soak (loss/replay is cipher-independent); bench
gains _chacha20 series (AES ids unchanged for CI history) — host-side
sealing line-rate-trivial on both x86 (~640 MiB/s) and Apple Silicon
(~535 MiB/s). punktfunk-probe drives the interop matrix via
PUNKTFUNK_CLIENT_CHACHA20=1 and logs the negotiated cipher.

Phase 4 (pf-webos pin bump + unconditional cap bit) follows the next
core release.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 22:50:00 +02:00
enricobuehlerandClaude Fable 5 309e37f1e1 fix(host/linux): scope the GPU clock pin to live client sessions
The PUNKTFUNK_PIN_CLOCKS clock pin (AMD power_dpm_force_performance_level=high / NVIDIA nvmlDeviceSetGpuLockedClocks) was armed once at host start and released only at host exit, so the box's clocks stayed pinned the whole time the host ran — even with no client connected.

Move the pin behind a box-wide refcount (gpuclocks::session_pin()) shared across both streaming planes (native + GameStream): it arms on the first live client and releases on the last disconnect. on_host_start() now only installs the process-scoped NVIDIA P2-cap application profile. No behavior change when PUNKTFUNK_PIN_CLOCKS is unset.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 22:36:55 +02:00
enricobuehlerandClaude Fable 5 56d21f9445 fix(client/wol): retry the QUIC dial across the connect budget so wake-from-sleep launches survive
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Launching from the Decky plugin against a sleeping host fired the
Wake-on-LAN packet and dialed immediately — but the dial was a single
quinn attempt that gave up after the transport's 8 s idle window, far
shorter than a suspend-to-RAM resume. The host woke to find the client
already gone (its retransmitted Initials show up host-side as
"QUIC accept failed error=timed out"), the stream shortcut exited, and
the launch looked cancelled.

- punktfunk-core: dial in a loop until the embedder's connect budget is
  spent — short 3 s attempts keep the Initial cadence dense, so the
  connect lands within ~a second of the host's network returning. Only
  silence is retried: pin mismatches, typed rejections, and any real
  answer surface immediately, and the shutdown flag stops the loop.
- decky: stretch the budget to 75 s when a magic packet actually went
  out (PF_CONNECT_TIMEOUT → --connect-timeout via the wrapper), so the
  retry window covers the resume; an awake host still connects in <1 s.
- host: a clean close before the control handshake is a reachability
  probe (hosts-page online pips), not a failed session — log it at
  debug instead of WARN "session ended with error", which buried the
  real failures in the reporter's log.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 22:26:10 +02:00
enricobuehlerandClaude Fable 5 42198eb1b6 feat(linux/vulkan-encode): default-on native NV12 capture + RGB true-extent
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Flip both zero-copy levers from opt-in to default:

- The capture negotiation now PREFERS gamescope's producer-side NV12 pod by
  default (PUNKTFUNK_PIPEWIRE_NV12=0 restores the packed-RGB negotiation).
  Codec-aware gating rides a new OutputFormat::nv12_native ->
  ZeroCopyPolicy::native_nv12_session edge resolved by the host facade from
  the session plan (pf_encode::linux_native_nv12_ok): only H265/AV1 sessions
  whose backend can open the raw Vulkan Video encoder ever see the NV12 pod
  -- an H264/Moonlight session (libav VAAPI, which would misread the
  two-plane buffer) keeps today's BGRx negotiation, as do the
  GameStream-resolve and portal-mirror paths, PyroWave, and NVENC prefs.
- RGB-direct's unaligned modes default to the true-extent direct import
  (PUNKTFUNK_VULKAN_RGB_TRUE_EXTENT=0 restores the padded-copy staging).
  Guarded-tested on Van Gogh with the kernel journal watched: clean, and at
  5.38 ms p50 the fastest 1080p encode path measured on that hardware. The
  EFC only exists on Mesa >= 26, where the codedExtent-driven session_init
  padding is guaranteed (verified back to Mesa 24.2).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 14:01:28 +02:00
enricobuehlerandClaude Fable 5 b4fbc94e36 feat(linux/vulkan-encode): PUNKTFUNK_VULKAN_RGB_TRUE_EXTENT bring-up gate
Opt-in alternative to RGB-direct's padded-copy staging at unaligned modes:
direct-import the visible-size capture and declare the TRUE-SIZE source
codedExtent. RADV has derived the VCN session_init firmware padding from
srcPictureResource.codedExtent since Mesa 24.2, so the EFC is told the source
lacks the alignment rows and the hardware edge-extends them internally --
which also reframes the 2026-07-20 field GPU reset: that crash passed the
ALIGNED extent as the source codedExtent (firmware padding zero) over a
visible-size buffer. Off by default until a guarded live test proves the EFC
front-end honors the padding like the YUV fetch path does; the padded-copy
staging remains the shipped behavior.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 14:01:28 +02:00
enricobuehlerandClaude Fable 5 004f0cacb8 perf(linux/vulkan-encode): true-size headers make native NV12 zero-copy at every mode
Drop the padded-copy staging for producer-native NV12 and direct-import the
visible-size buffer at unaligned modes (1080p) too. Safe by the driver's own
contract rather than by allocation luck: native sessions now author the H265
SPS / AV1 sequence header at the RENDER size and pass the matching codedExtent
on every picture resource. RADV rounds the bitstream SPS up itself (with a
conformance window -- radv_video_patch_encode_session_parameters, per the
VK_KHR_video_encode_h265 proposal's "implementations may override" clause) and
programs the VCN session_init with the true extent plus nonzero firmware
padding, so the hardware edge-extends the alignment rows internally and never
fetches past the source's real extent -- the exact mechanism VAAPI/radeonsi has
always used to encode 1080p. The driver-emitted header NALs already carry the
patched SPS, so the wire format is unchanged.

The CSC and RGB-direct paths keep the app-aligned convention (their sources
genuinely cover the aligned extent); RGB padded-copy staging is untouched.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 14:01:28 +02:00
enricobuehlerandClaude Fable 5 49c6dd00c9 fix(presenter): CPU frames never take the HDR10 passthrough surface
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Software decode uploads swscale RGBA with no CSC/tonemap pass. On the new
desktop-compositor HDR10 surfaces (GNOME 48 / Plasma 6 + Mesa >= 25.1 offer
ST2084 even on SDR desktops) that sRGB-encoded content was composed as PQ —
the field-reported psychedelic picture (Fedora clients decode HEVC in
software because stock Mesa strips it; reproduced + fix live-validated on
GNOME Wayland: mode-0 soup -> HDR→SDR washed-out-but-correct).

The CPU lane keeps the SDR swapchain and its known untonemapped-PQ gap; a
real PQ→sRGB pass for CPU frames is the follow-up.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 13:30:35 +02:00
enricobuehlerandClaude Fable 5 e7c6c96e5f fix(presenter): set the Wayland app_id so the session window gets its icon
SDL_APP_ID = io.unom.Punktfunk — compositors match it against the shipped
.desktop for the window icon; without it KWin/mutter show the generic Wayland
icon (field-noticed on the Deck). Linux analog of win32 AppUserModelID.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 13:30:35 +02:00
enricobuehlerandClaude Fable 5 da134ad045 feat(presenter): PUNKTFUNK_HDR10=0 refuses the HDR10 swapchain (SDR tonemap pin)
GNOME 48 / Plasma 6 with Mesa >= 25.1 now offer HDR10_ST2084 surfaces even on
SDR desktops, silently flipping PQ streams into the mode-0 passthrough lane —
previously unreachable on desktop compositors and never validated there. The
hatch pins the shader tonemap for diagnosis and as the field escape.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 13:30:35 +02:00
enricobuehlerandClaude Fable 5 428bd2519c test(qsv): converter→ring-profile-P010→encoder live e2e (the RTV-written seam)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 13:30:35 +02:00
enricobuehlerandClaude Fable 5 87d7eceabf fix(encode/qsv): write the colour VUI unconditionally + Intel-lane colour diagnostics
The native QSV encoder only attached mfxExtVideoSignalInfo on HDR sessions —
an SDR stream carried no colour description at all (NVENC writes 709-limited
unconditionally; qsv.rs now mirrors it).

Diagnostics for the field-reported blue/magenta Intel-host colours:
- hdr-p010-selftest takes an optional WxH + GPU vendor (intel|nvidia|amd) and
  prints which adapter it tested — 64x64 on the default GPU proved nothing on
  dual-GPU boxes, and the field heights (1080/1400) are not 16-aligned.
- pf-capture: ignored live test running the converter at 1920x1080 pinned to
  the Intel adapter.
- pf-encode: qsv_live_p010_1080_colorbars_dump — known P010 bars through the
  UNALIGNED-height ingest copy (1080 src -> align16 1088 pool, the seam no
  640x480 test exercises) to Main10 HEVC, dumped for off-box decode checks.
- dxgi.rs: drop the stale 'falls back to the R10 path' claim (no such path).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 13:30:35 +02:00
enricobuehlerandClaude Fable 5 1d4795666e feat(linux/vulkan-encode): opt-in gamescope producer-native NV12 encode source
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With PUNKTFUNK_PIPEWIRE_NV12=1 (bring-up gate), the PipeWire negotiation
offers an NV12 LINEAR DMA-BUF pod (BT.709 limited pinned MANDATORY) ahead
of the BGRx one, and gamescope's producer-side RGB->YUV pass replaces the
host CSC entirely: the encoder imports the two-plane buffer as a profiled
VIDEO_ENCODE_SRC image and the VCN encodes it directly. Contributed
measurements: encode p99 2.9 ms (from ~4-4.5 ms via EFC RGB-direct),
60 fps capture, 0 send drops.

Hardening on top of the contributed patch:
- unaligned modes (1080p!) stage through a padded aligned NV12 copy (edge
  rows/columns duplicated, transfer-only) instead of direct-importing the
  visible-size buffer -- a direct import would make the VCN read past the
  producer allocation, the exact OOB class behind the 2026-07-20 field GPU
  reset; the encode extents return to the aligned coded extent everywhere
- the UV plane layout honors the producer's plane-1 chunk (offset/stride)
  when the SPA buffer carries one (same-BO verified by inode), with the
  contiguous-plane contract as fallback
- PyroWave sessions are excluded from the gate (their Vulkan compute CSC
  ingests packed RGB), and a native-NV12 session that resolves to libav
  VAAPI (H264 codec, PUNKTFUNK_VULKAN_ENCODE=0, feature off, or a failed
  Vulkan open) refuses at open instead of streaming garbage chroma
- pad staging images carry TRANSFER_SRC (the width-padding pass self-copies
  the staging image -- previously missing on 1366-wide modes)
- metadata-cursor one-shot warn (parity with RGB-direct) and a padded-NV12
  PUNKTFUNK_PERF split label; the padded RGB copy gets its timestamps too

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 11:57:42 +02:00
enricobuehlerandClaude Opus 4.8 58b27acbd5 fix(vdisplay/session): scrub the dead desktop's WAYLAND_DISPLAY from the user-manager env
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settle_desktop_portal pushes the live desktop's WAYLAND_DISPLAY into the
systemd --user manager (import-environment) so a re-activated portal inherits
the right session — but the import PERSISTS after that desktop dies. Every
later user unit then inherits the stale socket, including
gamescope-session.target: gamescope sees WAYLAND_DISPLAY, runs NESTED, and
aborts with "Failed to connect to wayland socket: wayland-0" — observed live
on a Deck, where Game Mode could not start at all (autologin crash-looped)
until the var was unset by hand.

Two-layer fix, mirroring the protection launch_session already gives its
transient unit:
- observe_session_instance: when a desktop compositor instance goes away,
  unset WAYLAND_DISPLAY/DISPLAY from the manager env (a desktop bounce is
  harmless — the next portal settle re-imports).
- write_steamos_dropin: UnsetEnvironment=DISPLAY WAYLAND_DISPLAY on the
  takeover drop-in, unit-scoped belt-and-suspenders for host-initiated
  restarts.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-21 11:06:55 +02:00
enricobuehlerandClaude Opus 4.8 333c8979e9 fix(vdisplay/gamescope): capture-loss rebuild probes must not steal the box session
Observed live on a Deck host: the user switched Game Mode → Desktop, KDE came
up in 0.8 s — and the capture-loss rebuild's FIRST detection ran inside that
gap, still said Gaming, and its gamescope re-acquire restarted
gamescope-session.target. On SteamOS that steals the seat: the user was
yanked out of the KDE session they had just chosen, the two session managers
fought (job canceled / dependency failed), no gamescope node appeared within
30 s, and the stream died at the 40 s rebuild budget.

A rebuild probe acting on possibly-stale detection must never stop, relaunch,
or take over box sessions. New pf_vdisplay::rebuild_probe_scope (RAII,
counted): while held, the gamescope managed/takeover create paths only attach
to a live node and fail fast otherwise — no stop_autologin_sessions, no
session-plus relaunch, no gamescope-session.target restart. The capture-loss
loop holds it for the first 4 s after a loss (the detection-ambiguity
window); after that, destructive rebuilds are allowed again, so a genuine
switch INTO Game Mode still gets its headless takeover. Probe failures are
instant, so the loop now paces itself at ~2 Hz instead of spinning.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-21 11:00:02 +02:00
enricobuehlerandClaude Opus 4.8 46d09ed973 fix(host/linux): stop burning retry budget on doomed pipeline builds
Two session-transition stalls found live on a SteamOS Deck host, one cause:
the pipeline retry loop couldn't tell a wait-it-out failure from a
retry-now-and-it-works one.

- Gamescope first-frame race: a PipeWire stream connected while gamescope
  re-initializes its headless takeover negotiates a format, reaches
  Streaming, and never receives a buffer — while a fresh connect delivers
  within ~0.5 s. Every gamescope bring-up ate the full 10 s first-frame
  budget on attempt 1 (17 s bring-ups; KWin: 1.2 s). The retry loop's FIRST
  attempt now waits 2.5 s (Capturer::next_frame_within), so the reconnect
  that fixes the race happens at ~3 s. Later attempts keep the patient 10 s
  — the documented 30-60 s Big Picture cold start still fits the budget.

- Capture-loss rebuild vs session switch: the rebuild loop re-detects the
  active session between build_pipeline_with_retry calls, but each call
  burned 8 attempts (~13 s) against a compositor that no longer exists (a
  Desktop→Gaming switch spent 13 of its 27 s retrying gone-KWin). The
  capture-loss path now passes max_attempts=2, turning the outer loop into
  ~1 s detect-and-retry cycles that follow the box to the new session.

The resize path's direct build_pipeline call keeps the default budget (no
retry wrapper there to absorb an early bail).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-21 10:34:49 +02:00
enricobuehlerandClaude Fable 5 04c975e9cb fix(store): uninstall must refuse a plugin's framework, not just odd names
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The guard checked the package NAME shape, and `@punktfunk/plugin-kit` — the
framework every kit-built plugin depends on — matches `@scope/plugin-*`
exactly. Windows on-glass accepted an uninstall of it; bun no-ops removing a
non-dependency so nothing broke, but the store was offering to pull a library
out from under the plugins using it.

Require membership in the top-level dependency list, the same authority that
already keeps plugin-kit out of the installed listing. Same blind spot, two
call sites — the listing was fixed during implementation, this one wasn't.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 00:10:49 +02:00
enricobuehlerandClaude Fable 5 67b7981096 feat(encode/nvenc-linux): LN1 phase-3 — multi-slice sub-frame encode DEFAULT-ON for Linux direct-NVENC
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Gates recorded (nvenc-subframe-slice-output.md Phase 3): loss-harness curve
identical streamed-vs-whole; adversarial security review clean; live .21
3-leg A/B — streamed 0 corrupted frames, p99 8527→5363 µs vs sliced-whole,
first_slice_us ~500 µs of a ~1250 µs encode reaching the send thread; wire
bytes rate-governed under CBR + 1-frame VBV (the ~1-2 % slice-header cost is
absorbed by rate control, not added to the wire). GameStream: plane has zero
code diff (own RTP packetizer; shares only untouched send_pacing); a live
Moonlight re-test joins the standing owed Moonlight item.

- resolve_slices(codec, default): env 1..=32 wins (1 = the NEW explicit
  single-slice escape), else the backend default — 4 on Linux direct-NVENC,
  1 elsewhere. resolve_subframe(default_on): PUNKTFUNK_NVENC_SUBFRAME
  tri-state (0 = never, 1 = force, unset = backend default).
- Linux nvenc_cuda: resolves both ONCE in query_caps — the sub-frame default
  is gated on the GPU's SUBFRAME_READBACK cap so an unsupporting GPU never
  has enableSubFrameWrite forced into its init params — and feeds the same
  resolved values to build_config, build_init_params (open AND in-place
  reconfigure) and the chunked-poll latch.
- Windows: env-only as before (async path untouched, byte-identical config
  for unset env); LowLatencyConfig.slices + the explicit subframe param
  replace the shared env reads.
- Tests: chunked e2e now runs at the DEFAULTS (no knobs); the fallback test
  becomes the escape test (SLICES=1 disarms; SUBFRAME=0 disarms while
  4-slice encode continues on the plain poll path).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 23:44:41 +02:00
enricobuehlerandClaude Fable 5 7e5ec7eba9 chore(store): repin the official plugin-index signing key
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The bootstrap key generated during implementation was lost, and its
replacement was pasted into the wrong repository's secret store — Gitea
secrets neither cross repos nor read back, so neither is usable. The private
half of this one lives in punktfunk-plugin-index's own INDEX_SIGNING_KEY,
which is the only thing that signs the catalog.

Nothing has shipped pinning any of these, so this is a straight replacement
of slot 0; the second slot stays reserved for a genuine rotation.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 23:25:16 +02:00
enricobuehlerandClaude Opus 4.8 c6caeca5bc feat(encode): RGB-direct (EFC) is now the DEFAULT on capable hosts — gated by a session cursor-blend hint
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B2 default-on (design/vulkan-rgb-direct-encode.md): wherever the probe
passes, Vulkan Video sessions now take the EFC RGB source by default —
direct import on aligned modes, padded-copy staging on unaligned ones
(1080p). PUNKTFUNK_VULKAN_RGB_DIRECT becomes the override: =0 disables,
=1 forces, unset = the default below.

The one session class that must NOT default on: cursor-as-metadata
captures (every non-gamescope compositor), where the CSC shader's blend
IS the visible pointer — the EFC cannot composite, and defaulting there
would silently drop the cursor from the stream. The hint rides the
existing plumbing:

- SessionPlan gains cursor_blend, resolved once where the compositor is
  known (gamescope embeds the pointer itself → false; kwin/mutter/
  wlroots/hyprland → true), and shows up in the logged plan line.
- open_video/open_video_backend thread it through (native pump: all
  three encoder-open sites read plan.cursor_blend; GameStream monitor
  capture: true — it negotiates metadata cursor; spike: false).
- VulkanVideoEncoder::open resolves: env override, else ON iff the
  session never hands us cursor bitmaps. The warn-once for a cursor on
  an RGB session (forced via =1) stays.

Verified on-hw box (Linux): pf-encode + punktfunk-host compile, clippy
clean, unit suite green. The GPU paths themselves are unchanged from the
smoke-validated 96e19986 — this commit only changes which sessions
select them by default.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-20 23:24:46 +02:00
enricobuehlerandClaude Fable 5 3736bbdc73 fix(core): streamed-AU hardening from the security-review pass
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Review verdict: no exploitable memory-safety / amplification / splice /
resurrection issue; nonce order and two-lane seal byte-identical for the
legacy path. Actionable findings applied:
- explicit per-block data_shards cross-check next to the recovery_shards
  one (defense-in-depth — the geometry invariants make it unreachable
  today, but have_data indexing assumes it)
- partial delivery skips an UNPINNED streamed frame (frame_bytes still 0)
  instead of truncating its max-sized buffer to an empty "partial"
- regression tests for the two untested load-bearing guards: the
  final-first out-of-range-sentinel drop (the exact-sized-buffer guard)
  and second-final-with-different-totals rejection

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 23:13:59 +02:00
enricobuehlerandClaude Fable 5 c5402cb1f7 feat(core+host): LN1 phase-2 — VIDEO_CAP_STREAMED_AU streamed access units
The wire half of sub-frame slice output (latency §7 LN1, planning
design/nvenc-subframe-slice-output.md Phase 2): toward a client that
advertises the new cap bit (0x20), a chunked-poll encoder session ships each
AU's completed FEC blocks while the tail of the frame is still encoding —
the AU's last packet leaves the host as the encode finishes instead of
after it.

Wire semantics (negotiated; zero change for anyone else):
- Non-final blocks ride SENTINEL headers: block_count = 0 (a value no legacy
  sender emits) + frame_bytes = 0 + exactly max_data_per_block data shards,
  so the receiver's shard-offset formula needs no total.
- The final block's headers carry the real frame_bytes/block_count (+
  FLAG_EOF) and RETRO-VALIDATE the whole frame: totals under which a
  received sentinel block is out of range or not full-K kill the frame
  wholesale (no spliced delivery) and the index can't be resurrected.
- Firewall: sentinels are bounded by the negotiated limits (full-K exactly,
  never the last block the limits allow, no total to lie about); the exact
  derived-geometry check runs unchanged on every non-sentinel packet and
  retroactively at pinning. Sentinel opens commit a max_frame_bytes buffer,
  bounded by the existing IN_FLIGHT_BUF_FACTOR budget (amplification test).
- Order-agnostic like legacy: a reversed frame (final block first) opens
  legacy-shaped and still accepts its sentinels against the pinned totals.
- Small/empty streamed AUs degenerate to byte-identical legacy headers.

Host: Packetizer::{begin,push,finish}_streamed seal full-K blocks (data +
parity per block) as chunks arrive; Session::seal_streamed_* share the
pooled-wire + two-lane seal machinery via the new seal_run; the send thread
paces each flush under the frame's existing deadline (pace_sealed split out
of paced_submit) and runs the whole-AU accounting at the last chunk; the
encode pump forwards poll_chunk output as ChunkMsg when the client has the
cap AND the encoder chunks (re-queried per AU — an escalation falls back
seamlessly). Probes never run mid-AU. PUNKTFUNK_STREAMED_AU=0 = host escape
hatch. Client core ORs the cap into Hello (the shared reassembler carries
the support). Sampled first_slice_us vs encode_us PERF log measures the
overlap; the 0xCF stage-field extension stays a follow-up.

Core tests: streamed round-trip (clean/loss/reorder/duplicate, both orders),
sentinel firewall bounds, lying-final wholesale kill + no-resurrect,
open-amplification budget, header-shape pins. Gates still owed before
default-on: security review pass, loss-harness curve, GameStream smoke
(plane untouched structurally), bitrate A/B.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 22:53:53 +02:00
enricobuehlerandClaude Fable 5 9d3b114fd6 feat(encode/nvenc): LN1 phase-1 — slice-boundary chunked encoder poll (poll_chunk/AuChunk)
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The encoder half of sub-frame slice output (latency §7 LN1, planning
design/nvenc-subframe-slice-output.md Phase 1): with PUNKTFUNK_NVENC_SLICES=N +
PUNKTFUNK_NVENC_SUBFRAME=1 on a sync depth-1 session, Encoder::poll_chunk hands
the in-flight AU out as slice-boundary chunks read through doNotWait sub-frame
locks while the tail is still encoding — the readback loop the on-hw probe
validated (~200 µs slice spacing on the 5070 Ti), productionized.

- codec.rs: AuChunk (AU metadata on the first chunk, `last` closes the AU;
  chunks concatenate to exactly the poll() bytes) + supports_chunked_poll /
  poll_chunk trait surface. Default impl wraps poll() as one self-closing
  chunk, so a chunk-driven consumer works against every backend.
- nvenc_cuda: chunked readback cut at slice boundaries only (bitstream size at
  n reported slices = end of slice n, Annex-B contiguous); completion is NEVER
  numSlices alone — one finishing BLOCKING lock is the authority and the wedge
  watchdog, so the final chunk blocks exactly like sync poll (the depth-1 pump
  contract; 6dc195f9 bug class). Keyframe on early chunks is the submit-time
  IDR prediction (exact under P-only/infinite-GOP), cross-checked at finish.
  Debug builds shadow-check emitted chunks against the finished AU prefix.
  Mutually exclusive with pipelined retrieve (gated off when async_rt exists,
  dropped by the escalation rebuild); composes with stream-ordered submit.
- nvenc_core: slices_env/subframe_requested shared parses so the config author
  and the chunked-poll arming can't disagree.
- TrackedEncoder forwards both new methods (the set_wire_chunking trap class).

Host loop untouched — Phase 2 (VIDEO_CAP_STREAMED_AU seal/send) consumes this.
On-hw: nvenc_cuda_chunked_poll_end_to_end + nvenc_cuda_chunked_poll_fallback_whole_au.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 20:53:32 +02:00
enricobuehlerandClaude Fable 5 411c6dc06a fix(encode): forward set_pipelined through TrackedEncoder — the LN3 escalation no-oped through the wrapper
Every session encoder is boxed in TrackedEncoder (open_video), and the
wrapper never forwarded Encoder::set_pipelined — so the host loop's
contention escalation (ae673158) hit the trait default, which returns
false ("backend can't pipeline, stop asking"), and the pipelined-retrieve
stage could never engage adaptively. Only the explicit
PUNKTFUNK_NVENC_ASYNC=1 open-time path worked. The exact defaulted-method
trap the wrapper's own comment documents for set_wire_chunking.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 20:53:32 +02:00
enricobuehlerandClaude Fable 5 833f3348a0 feat(store): console plugin store, index repo, and the fixes on-glass found
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Console: a Plugins section (Browse / Installed / Sources) on a static nav
entry, with install friction proportional to trust — a plain confirm for a
verified entry, a warning naming the curator for an external one, and a
danger dialog that makes you retype the spec for a raw package. Tier badges
are permanent and follow the plugin onto its own UI page.

Index: unom/punktfunk-plugin-index published and served from Gitea's raw
endpoint (real HTTPS, byte-exact, no vhost to stand up) — merge to main is
publish, which resolves the design's open hosting question.

Four things only running it could find:
- runner discovery matched @punktfunk/plugin-* only, so a third-party
  scoped plugin (which D8 requires) would install and never run
- ...and that convention also matches @punktfunk/plugin-kit, a plugin's
  own framework: it listed as installed and would have been imported as a
  unit. Both now key off the plugins dir's top-level dependencies, with an
  emptied dependency list meaning 'nothing installed' rather than falling
  back to the naming convention
- the store must not pass new flags to the runner: the scripting package
  ships separately and an older one reads an unknown flag's value as a
  package name. The host writes the bunfig scope mapping itself
- ureq reports only >= 400 as Err, so a conditional request's 304 arrives
  as Ok with an empty body — handled as an error it made every refresh
  after the first verify a signature over zero bytes and sit stale

Also: the console's first Tabs use exposed an @unom/ui theme gap that
rendered inactive tabs invisible (caught in a browser pass, not by types).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 20:48:02 +02:00
enricobuehlerandClaude Fable 5 45c3b96907 feat(store): plugin store host module — signed catalogs, tiered trust, install jobs
The index is the verification gate: a catalog entry pins one exact version
plus that version's tarball integrity hash, so 'verified on every release'
is a property of the data rather than a promise about process. Nothing can
express 'track latest' for a catalogued plugin.

- store/index.rs   signed index parse + ed25519 verify (ring), validate-and-drop
                   per entry, semver minHost/advisory ranges
- store/sources.rs built-in unom source (compiled-in URL + two key slots for
                   rotation) + operator sources in plugin-sources.json
- store/catalog.rs https fetch with size/timeout/redirect caps, signature before
                   parse, last-good disk cache (stale-but-usable when offline)
- store/jobs.rs    single-flight install/uninstall: registry-integrity preflight
                   against the pin, spawn the runner CLI with live log capture,
                   post-install version check with rollback, provenance record,
                   runner restart (discovery is startup-only)
- store/manifest.rs install provenance; absence means CLI-installed
- mgmt/store.rs    12 routes under /api/v1/store, denied to the plugin token
                   (a plugin that can install plugins is an escalation primitive)

Also generalizes runner discovery and listInstalled from @punktfunk/plugin-*
to ANY scope's plugin-*: catalog entries must be scoped so the scope can map
to that entry's registry, so a third-party plugin necessarily arrives under
its own scope and would otherwise install but never run.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 20:48:02 +02:00
enricobuehlerandClaude Opus 4.8 96e19986bc feat(encode): RGB-direct padded-copy — unaligned modes (1080p) get the EFC path safely
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Lifts 3aacec53's alignment gate into a mode select: an aligned mode keeps
the true zero-copy direct import; an unaligned one (1080p!) now blits the
visible frame into a per-slot ALIGNED BGRA staging image and duplicates
the edge rows/columns into the 64x16 padding — transfer-only regions in
one vkCmdCopyImage (1080p: visible + 8 row regions; width padding adds a
second self-copy pass in GENERAL), no compute shader. The encode reads
the staging image, never the capture buffer, so the EFC can never read
past a producer allocation (the field GPU hang). Still one ~8 MB copy vs
the CSC path's ~17 MB + dispatch + plane copies. Verdict line:
active(padded-copy). The staging import drops the video profile entirely
(TRANSFER_SRC only).

CPU-payload paths made honest on the way (they were the smoke baseline
AND the software-capture fallback):
- rgb mode: the staging upload is padded CPU-side (edge duplication) so
  the aligned encode-src is fully defined;
- CSC mode: the sampled image is now SOURCE-sized with a matching copy
  extent — the old aligned-size image + tightly-packed buffer sheared
  rows and left garbage rows at unaligned modes (black-bar artifacts;
  YMIN=16 in every smoke frame), which also masked as a 24 dB PSNR
  'regression' against the (correct) padded output.

On-glass (780M, host Mesa 26.0.4): all four smokes pass at 256x256
(direct) AND 250x250 (padded); padded-EFC frames decode perfectly
uniform (YMIN==YMAX) at the exact 709-narrow values (79/148/60 for the
first three fills); CSC-vs-padded PSNR 49.9 dB avg after the baseline
fix. clippy clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-20 20:38:55 +02:00
enricobuehlerandClaude Opus 4.8 3aacec53d8 fix(encode): RGB-direct must not engage on unaligned modes — the EFC reads past the capture buffer (GPU hang)
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Field report (commit 25624443, RDNA2/VCN3 host, 1080p): repeated VCN0 VM
protection faults from punktfunk-host, vcn_enc_0.0 ring timeouts, two ring
resets, then a failed reset escalating to a full MODE1 GPU reset with VRAM
loss. Root cause is B1's RGB-direct source: the session's coded extent is
64x16-aligned (1920x1088) but the captured dmabuf is only the real mode
size (1920x1080) — the VCN EFC reads the 8 padding rows past the end of
the buffer (8 x 7680 B = 61 KB, matching the faulting page span exactly).
The CSC shader absorbs alignment by clamping reads and duplicating edges;
RGB-direct has no such stage. Every prior validation surface happened to
be aligned (256x256 smoke, 1440p live box) — 1080p is the common mode
that is not. The stall watchdog's rebuild-and-refault loop then turned a
per-session fault into the GPU death spiral.

Two layers:
- Open-time gate: RGB-direct engages only when the real mode equals the
  aligned coded extent (720p/1440p/4K yes, 1080p no); otherwise the CSC
  path runs and the verdict line says why (unaligned-mode). The padded-
  copy variant that re-enables 1080p is design-doc B2 work.
- Submit-time check: an RGB-direct frame that does not cover the coded
  extent errors out (encoder-rebuild path) instead of importing an
  undersized source.

On-glass (780M, host Mesa 26.0.4): all four smokes pass aligned; at
PF_SMOKE_W/H=250 the gate refuses RGB-direct and the rgb smokes soft-skip.
clippy clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-20 20:23:29 +02:00
enricobuehlerandClaude Fable 5 1262fec2ae perf(zerocopy/vulkan): LN4 — global-priority VkBridge queue for the LINEAR/gamescope CSC
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The RGB→NV12 compute CSC shares the SMs with the game; request an
elevated global-priority queue (VK_KHR/EXT_global_priority) so the
driver can schedule it ahead. PUNKTFUNK_VK_QUEUE_PRIORITY =
off|high|realtime (default realtime), downgrading REALTIME→HIGH→none
on NOT_PERMITTED/INITIALIZATION_FAILED — a refused class never fails
the bridge. Mirrors PyroWave's ac0e7332 (same honest caveat: WDDM
didn't move; the Linux driver may — contended-tail lever, correct and
harmless either way).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 20:12:42 +02:00
enricobuehlerandClaude Fable 5 ae67315804 perf(encode/nvenc-linux): LN3 — pipelined-retrieve escalation replaces the depth-1 async foot-gun
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PUNKTFUNK_NVENC_ASYNC gains a real tri-state: 1 = always (as before, now
documented as ~+1 tick at depth-1), 0 = never (vetoes escalation), unset =
ADAPTIVE — off until the session loop's cadence-overrun detector escalates.

The host loop's adaptive-depth leaky bucket grows a second stage: once the
capturer's depth is maxed (Linux portal is permanently depth-1), it asks
the encoder for pipelined retrieve via the new Encoder::set_pipelined hook
(asked exactly once; default impl declines, Windows untouched).

nvenc_cuda engages at a safe point via a clean session rebuild WITHOUT the
IO-stream binding: with input==output stream bound, later stream work
waits on prior encode completions and would serialize a pipelined session
— stream-ordered submit and two-thread retrieve are mutually exclusive.
The ordered gate now also requires async_rt absence (belt-and-braces for
the runtime switch). Re-open's first frame is the standard session IDR.

On-hardware test: escalate mid-session → retrieve thread live, binding
gone, all AUs deliver, first post-escalation AU is the IDR.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 20:10:24 +02:00
256244430b feat(encode): Vulkan Video B1 — RGB-direct encode source via VCN EFC (PUNKTFUNK_VULKAN_RGB_DIRECT=1)
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design/vulkan-rgb-direct-encode.md B1: when the probe passes AND
PUNKTFUNK_VULKAN_RGB_DIRECT=1 (default OFF until the B2 on-glass A/B),
the session opens with pictureFormat=B8G8R8A8 and the captured RGB frame
becomes the encode source — the VCN EFC front-end does the 709-narrow CSC
inline during encode. Deleted from the per-frame path: the compute CSC
dispatch, both NV12 plane copies, the semaphore hop and one queue submit
(dmabuf frames are ONE encode-queue submit; ~17 MB/frame of GPU traffic
gone). The DPB stays NV12; RFI/RC/quality-level machinery is untouched.

Shape:
- probe_rgb_direct now returns the chroma-siting bits to create the
  session with (midpoint preferred, else cosited-even per axis); the open
  verdict line gains "active" / "available(off; ...)" states.
- RgbProfileStack: the rgb-chained video profile rebuilt on the stack per
  profiled-image creation after open (profile identity is by value) —
  dmabuf imports become profiled VIDEO_ENCODE_SRC images (import cache
  unchanged), the CPU staging image likewise (concurrent encode+compute).
- record_submit_rgb: steps 2–4 twin (dmabuf: single submit; CPU: staging
  copy on the compute queue, semaphore-ordered); shared step-1/bookkeeping.
- begin_encode_cmd takes a SrcAcquire (CSC general / fresh-import FOREIGN
  QFOT / cached visibility-only / staging TRANSFER_DST) so both paths
  share the encode recording.
- RGB-direct frames skip the CSC per-slot resources entirely (make_frame
  split into csc/common halves); cursor bitmaps warn once (EFC cannot
  composite; gamescope — the flagship — embeds the cursor itself).

On-glass (780M RADV PHOENIX, host Mesa 26.0.4): all four smokes pass
(vulkan_smoke{,_av1,_rgb,_rgb_av1}); the EFC-encoded H265 stream decodes
clean and matches the CSC-encoded stream at 49.9 dB average PSNR (min
48.9) — within the design's ±1-code-value tolerance. (Raw-OBU ffmpeg
probing of the tiny AV1 dumps fails identically for BOTH paths —
pre-existing dump quirk, not a stream defect.) check+clippy+full unit
suite green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-20 20:05:56 +02:00
enricobuehlerandClaude Fable 5 5a27c02738 feat(encode/nvenc): LN1 phase-0 — slice-count + sub-frame-readback knobs and the slice-timing probe
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PUNKTFUNK_NVENC_SLICES=N (2..=32, default off) splits H.264/HEVC frames
into N slices (sliceMode 3); PUNKTFUNK_NVENC_SUBFRAME=1 (default off)
arms enableSubFrameWrite + reportSliceOffsets on sync sessions only.
Both experimental groundwork for sub-frame slice output (plan §7 LN1).

nvenc_cuda_subframe_slice_probe (on-hardware, ignored) answers the LN1
go/no-go: spins lock_bitstream(doNotWait) against an in-flight frame and
prints the (t_us, status, numSlices, bytes) timeline — incremental slice
availability and its spacing, or all-at-completion.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 19:44:54 +02:00
d5a0f5012b fix(encode): RGB-direct probe — accept cosited-even chroma siting (what VCN EFC actually offers)
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On-glass B0 result from the 780M (RADV PHOENIX, host Mesa 26.0.4): the
probe returned no-709-narrow-midpoint because RADV advertises
xChromaOffsets = COSITED_EVEN only — the VCN EFC does canonical H.26x
left-cosited x-chroma, while the requirement was written to bit-match our
2x2-average (midpoint) shader. The delta is a half-pel chroma-x phase,
imperceptible and unsignalled in our bitstream; EFC's siting is arguably
the more correct one. Accept either siting bit per axis (model + range
stay exact: 709 narrow); B1 will pass the preferred available bit.

With this the 780M probes rgb_direct=available; both GPU smoke tests
(H265 + AV1) pass on that box against host Mesa 26.0.4 — the first
real-RADV validation of the poll fix, the quality-level control, and B0.
(Container mesa alone can't run the H265 smoke: Fedora ships RADV with
H264/H265 encode compiled out — AV1 only. Use the host ICD via
VK_ICD_FILENAMES on Atomic boxes.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-20 19:44:33 +02:00