https://gitlab.synchro.net/main/sbbs/-/commit/43cf5c5c07455b137b04030d
Added Files:
docs/superpowers/specs/2026-07-19-libtermgfx-termio-extraction-design.md
Log Message:
docs: design spec for the libtermgfx terminal-I/O extraction

Sub-project 1 of the syncrpg (EasyRPG / RPG Maker door) effort: lift syncscumm's sst_io.c terminal-I/O engine -- the render pipeline (canvas
probe, aspect scale, sixel/JXL tiers, pacing), the input decode
(kitty/evdev keyboard + SGR mouse), and the DOOR32/socket I/O -- into a
shared libtermgfx termgfx_termio module with a door-facing API, then
refactor syncscumm onto it behavior-identically so a second door can
reuse it.

The audio stream, encoders, key-mode and node helpers are already shared
and out of scope. Behavior identity is gated on syncscumm's existing
boot/unit tests passing unedited, a before/after wire-byte diff, and a
live confirm.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

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https://gitlab.synchro.net/main/sbbs/-/commit/986e8c66c289bdab6eb9fcde
Modified Files:
docs/superpowers/specs/2026-07-19-libtermgfx-termio-extraction-design.md
Log Message:
docs: reframe the termio extraction spec around all-door convergence

The per-door terminal-I/O orchestration is duplicated across all five
graphical doors -- syncretro_io.c, syncscumm's sst_io.c, syncduke_io.c, syncdoom's i_video/r_draw/v_video, and syncconquer's door_io.c -- not just syncscumm. The low-level primitives (caps, geometry, sixel/jxl, pace,
mouse, keymode, door32, audio, node) are already shared in libtermgfx, but
the loop that drives them was never carved out.

Reframe termgfx_termio as the canonical shared orchestration every
graphical door converges on: seed it from syncscumm's (most recently
hardened) sst_io.c, but design the API against the union of all the doors' *_io.c needs, not merely clone one. The bounded first step is unchanged -- migrate only syncscumm + syncrpg now; retro/duke/doom/conquer migrate as separate later efforts.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

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