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DeeJanuz--frametop/gaze/build.sh
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DeeJanuzandClaude Opus 5.5 da3e3d66a7 Gaze panel: shared buffers, no flicker; calibration dots wait for a click
The panel drew each picture with SetOverlayRaw, a new texture upload every
time: the full calibration's 1024x768 picture flickered on every change, and
in a live test the headset kept showing the last calibration picture after the
panel had drawn the fit check (2026-10-01). Now, as screens/keyboard.cpp does,
it writes into three linear DMA-BUFs SteamVR imported once (the size of the
biggest panel; texture bounds show the part in use) and switches between them.
A show makes the overlay visible once its first picture is in.

The full calibration's and the five-dot check's dots wait for a left click or
Meta+J while you look at the dot, in place of capturing any steady gaze (which
can be a look somewhere else); no capture ring, no 8 s skip, and the check
closes after 2 minutes without a click. The quick check still captures itself.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-01 11:27:30 -06:00

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#!/usr/bin/env bash
# Build ft-gaze and the calibration panel ft-gazepanel in the dev container on the Frame
# (gaze/build/; they also run there). The panel draws its text with stb_truetype (public
# domain, one header, pinned as in screens/build.sh).
# The eye tracking API (IVRInput::GetEyeTrackingDataRelativeToNow) is newer than the header
# shipped with SteamVR's samples, so this uses the pinned public header ft-screens fetches.
set -euo pipefail
root=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
"$root/scripts/sync.sh" >/dev/null
exec "$root/scripts/frame.sh" -C gaze 'set -e; mkdir -p build/include
openvr=v2.15.6
[ -f build/include/openvr-$openvr ] || { curl -fsSL "https://raw.githubusercontent.com/ValveSoftware/openvr/$openvr/headers/openvr.h" -o build/include/openvr.h && touch build/include/openvr-$openvr; }
g++ -std=c++17 -O2 -Wall -Wno-unused-parameter -Wno-missing-field-initializers -Ibuild/include -I../pointer/common \
-o build/ft-gaze ft-gaze.cpp -L/opt/steamvr/bin/linuxarm64 -lopenvr_api -Wl,-rpath,/opt/steamvr/bin/linuxarm64 -lpthread
stb=2c980bb59875b0d32144a71867fbdebb2f77cd20
[ -f build/include/stb-$stb ] || { curl -fsSL "https://raw.githubusercontent.com/nothings/stb/$stb/stb_truetype.h" -o build/include/stb_truetype.h && touch build/include/stb-$stb; }
g++ -std=c++17 -O2 -Wall -Wno-unused-parameter -Wno-missing-field-initializers -Ibuild/include $(pkg-config --cflags gbm libdrm) \
-o build/ft-gazepanel panel/ft-gazepanel.cpp -L/opt/steamvr/bin/linuxarm64 -lopenvr_api -Wl,-rpath,/opt/steamvr/bin/linuxarm64 \
$(pkg-config --libs gbm libdrm) -lpthread
echo "built build/ft-gaze build/ft-gazepanel"'