Fabian Hamm
6c9380ff13
WIP toward the residual flight-speed-law question (does a 1 s burst reach the
steady angular rate, or is there a per-axis multiplier?). The write-up already
concluded that host-side polling cannot answer it and named a Canary-side hook
as the tool required; that hook now exists (--frame_probe_log, committed as
auto/re-frame-probe in xenia-canary-native) and this is the harness for it.
- `rebuild_canary.sh` -- the surgical rebuild the box can actually do, kept in
the repo this time instead of in /tmp: compile only the changed objects, `ar`
them into their archive, and re-run the link command lifted out of the
generated ninja. A full `ninja` is impossible here (several TUs need dev
headers the image lacks) and the build cache cannot be re-configured. 31 s.
- `frame_burst.py` -- points the probe at the player craft's transform block
(pos-112, the three 16-byte-strided rows plus the position) and drives full
stick holds, recording each hold's start and end in the same clock the probe
stamps its lines with.
- `frame_session.sh` -- the whole run as ONE blocking foreground call, per the
session-lifetime rule; REUSE=1 drives a Canary that is already up.
- `nav_to_flight.sh` -- fly_stage.sh's navigation, split out so a live emulator
can be re-used. A boot to the title costs minutes under lavapipe and a run
that only failed to NAVIGATE should not pay for it twice.
The navigation change is the one worth reading. Every screen oracle here tested
named pixels ("648,221 is white"), which is only valid while the game image sits
at a known place on the root window -- and it does not: xenia's GTK window has a
menu bar, so on this display the image is ~25 px lower and every constant reads
the wrong row. Nothing errors. One run sat 300 s in front of a plainly visible
MAIN MENU reporting "no main menu"; the next missed the title screen entirely
and let the attract movie loop for ten minutes.
So `screen_id.py` identifies screens by WHOLE-IMAGE statistics instead -- the
fraction of green UI-text pixels, the fraction of near-white pixels, and the
per-channel means -- which no vertical shift, scale or letterbox can move. It is
calibrated against known-good captures and classifies all of them correctly:
title, three different menu screens, in-flight, and four movie frames as
"other". `bin/screenshot` additionally crops the menu bar off saved evidence
shots, deriving the offset from the window's own height rather than a constant.
Not yet a finding: the run has not reached flight, so no rate has been measured.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
46 lines
2.0 KiB
Bash
Executable File
46 lines
2.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Grab the GAME's image, not the emulator window.
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#
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# Every pixel oracle in this toolkit (at_menu, at_title, wait_not_black, the
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# HUD readers) was measured against a bare 1280x720 game image. xenia's window
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# is a GTK window with a menu bar, so the game surface actually starts ~25 px
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# down — and when it does, all of those constants read the wrong pixels. That
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# is not a hypothetical: a run sat on a plainly visible MAIN MENU for 300 s
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# reporting "no main menu", and a later one missed the title screen entirely and
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# let the attract movie loop for ten minutes.
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#
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# The offset is not guessed: it is the xenia window's height minus 720. So this
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# works whether or not the menu bar is there, and needs no per-display constant.
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# Put this directory first on PATH and existing scripts keep working unchanged.
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set -u
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REAL=/usr/local/bin/screenshot
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OUT="${1:-}"
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if [ -z "$OUT" ]; then
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dir="${HOME:-/tmp}/shots"; mkdir -p "$dir"
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n_file="$dir/.counter"; n=$(( $(cat "$n_file" 2>/dev/null || echo 0) + 1 )); echo "$n" > "$n_file"
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OUT="$dir/shot-$(printf '%04d' "$n").png"
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fi
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RAW="$(mktemp /tmp/shot-raw-XXXXXX.png)"
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trap 'rm -f "$RAW"' EXIT
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"$REAL" "$RAW" >/dev/null || exit 1
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# "…": ("xenia_canary" "Xenia_canary") 1280x745+0+0 +0+0
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geo=$(xwininfo -root -children 2>/dev/null \
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| grep '"xenia_canary"' | grep -oE '[0-9]+x[0-9]+\+-?[0-9]+\+-?[0-9]+' | head -1)
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if [ -z "$geo" ]; then # no window found — hand back the raw grab
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cp "$RAW" "$OUT"; echo "$OUT"; exit 0
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fi
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W=${geo%%x*}; rest=${geo#*x}; H=${rest%%+*}; rest=${rest#*+}; X=${rest%%+*}; Y=${rest#*+}
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OFF=$(( H - 720 )); [ "$OFF" -lt 0 ] && OFF=0
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TOP=$(( Y + OFF ))
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[ "$TOP" -lt 0 ] && TOP=0
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if [ "$OFF" -eq 0 ] && [ "$TOP" -eq 0 ] && [ "$X" -eq 0 ]; then
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cp "$RAW" "$OUT"; echo "$OUT"; exit 0
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fi
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# Height is whatever is still on screen: a 1280x745 window on a 720-high root
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# loses its last rows, and every oracle point in use sits well above them.
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convert "$RAW" -crop "${W}x720+${X}+${TOP}" +repage "$OUT" 2>/dev/null \
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|| cp "$RAW" "$OUT"
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echo "$OUT"
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