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>