Root-caused fixes from on-Deck testing (owner + first external tester):
- System input broke while the app was merely OPEN: SDL's Steam Deck HIDAPI
driver clears the built-in controller's "lizard mode" (trackpad-mouse,
clicky pads) at device ENUMERATION and keeps feeding the firmware watchdog
(SDL_hidapi_steamdeck.c InitDevice/UpdateDevice) — and we enabled that
driver at startup and held every pad open app-lifetime. The Valve HIDAPI
hints are now enabled only while a session is attached, and only the active
pad is opened (Settings enumerates via SDL's ID-based metadata getters, no
open). Close/detach hands the hardware back; the watchdog restores lizard
mode within seconds. This also unblocks click-to-capture on the Deck (the
dead trackpad made "input not passed through" a symptom, not a cause).
- Washed-out colors from a Windows host with an HDR desktop: the host ships
Main10 BT.2020 PQ IN-BAND (correct VUI) while the Welcome still says SDR;
this client rendered everything as BT.709 narrow. Colour signaling is now
read per-frame (video::ColorDesc from the AVFrame CICP fields) and drives
the GdkDmabufTexture color state, the software path's swscale matrix/range
plus a tagged MemoryTexture for PQ, and an "· HDR" HUD chip — GTK tone-maps
correctly on SDR displays, mid-session SDR↔HDR flips included. Regression-
tested against a checked-in Main10 PQ fixture (tests/pq-frame.h265).
- Streams start fullscreen by default (Settings toggle; F11 / the controller
chord lead out, and the pointer at the top edge reveals the header while
input isn't captured — a Deck desktop has no F11). Gaming-Mode launches
(--fullscreen / Deck env) build the stream page with NO header bar at all:
gamescope doesn't reliably ACK xdg_toplevel fullscreen, so anything keyed
on is_fullscreen() could leave the title bar drawn over the stream.
- Game Mode settings were uneditable: GTK popovers are xdg_popups, which
gamescope never maps for nested apps — every ComboRow dropdown flashed and
died. Under gamescope the preferences dialog now uses in-window selection
subpages (PreferencesDialog::push_subpage) via a ChoiceRow that stays a
stock ComboRow on desktops. Covered by an in-process GTK test
(choice_row_modes, #[ignore]d — needs a display).
- Forwarded-controller pin persists across restarts (Settings::forward_pad,
stable vid:pid:name key — SDL instance ids are per-run) and survives
disconnects; automatic selection skips Steam Input's sensor-less virtual
pad (28de:11ff) so gyro doesn't silently die on Bazzite/Deck.
- "Punktfunk" branding in the About dialog.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
