mirror of
https://github.com/daniel-lynch/ovrplugin-openxr-shim.git
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Daniel LynchandClaude Opus 4.8
a72a79ad29
An independent reimplementation of Meta's libOVRPlugin ABI on top of OpenXR, so VrApi-era Meta Quest VR titles can run on non-Meta OpenXR runtimes (Monado, Steam Frame) instead of being locked to Meta hardware. Original code only — no Meta/Epic/Capcom binaries, headers, or assets. Includes a desktop harness that drives the shim against Monado headless. Scope/legal: interoperability; entitlement handling is out of scope. See README for the legal/scope section and docs/ for the research trail and design notes. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01D6sFYGXZPsq3v7xtcDES6g
55 lines
2.3 KiB
Bash
Executable File
55 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# build_host.sh — desktop (x86_64 Linux) build of the shim + the OpenXR test harness.
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# Mirrors build_android.sh but targets the host so the OpenXR path can be driven against
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# Monado's simulated HMD on a PC (see tools/desktop-harness/). NOT the shipping artifact —
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# that's build_android.sh (arm64). Needs: a C compiler, libvulkan, and the OpenXR loader
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# (Debian: libvulkan-dev libopenxr-loader1 libopenxr-dev). Run tools/desktop-harness/run.sh
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# after this to launch it headless against monado-service.
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set -euo pipefail
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SHIM="$(cd "$(dirname "$0")" && pwd)"
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ROOT="$(cd "$SHIM/.." && pwd)"
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OUT="$ROOT/build/host"
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mkdir -p "$OUT"
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CC="${CC:-cc}"
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# _GNU_SOURCE: glibc gates dladdr/CLOCK_MONOTONIC behind it (the NDK exposes them by default).
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INC="-I$SHIM/include -I$SHIM/third_party/openxr -I$SHIM/third_party/vulkan"
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CFLAGS="-std=c11 -Wall -D_GNU_SOURCE -fPIC -O2 -g $INC"
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echo "== compiling shim sources (host) =="
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OBJS=()
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for f in "$SHIM"/src/*.c; do
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o="$OUT/$(basename "${f%.c}").o"
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"$CC" $CFLAGS -c "$f" -o "$o"
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OBJS+=("$o")
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done
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# The shim's xr* calls resolve against the system OpenXR loader; Vulkan against libvulkan.
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# Detect the loader via ldconfig, falling back to a direct file probe (ldconfig reads
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# /etc/ld.so.cache, which some sandboxes block -> false negative).
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have_loader() {
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ldconfig -p 2>/dev/null | grep -q libopenxr_loader && return 0
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for d in /usr/lib /usr/lib/x86_64-linux-gnu /lib/x86_64-linux-gnu /usr/local/lib; do
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[ -e "$d/libopenxr_loader.so" ] || [ -e "$d/libopenxr_loader.so.1" ] && return 0
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done
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return 1
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}
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if ! have_loader; then
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echo "WARN: libopenxr_loader not found — install libopenxr-loader1 libopenxr-dev to link/run."
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echo " (objects built OK; skipping the .so + harness link.)"
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exit 0
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fi
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echo "== linking libOVRPlugin.so (host) =="
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"$CC" -shared -o "$OUT/libOVRPlugin.so" "${OBJS[@]}" -lopenxr_loader -lvulkan -lpthread -ldl
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echo "built: $OUT/libOVRPlugin.so"
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echo "== building harness =="
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"$CC" -std=c11 -Wall -D_GNU_SOURCE -O2 -g -I"$SHIM/include" -I"$SHIM/third_party/vulkan" \
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"$ROOT/tools/desktop-harness/harness.c" \
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-o "$OUT/harness" \
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-L"$OUT" -lOVRPlugin -lvulkan -lm -Wl,-rpath,"$OUT"
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echo "built: $OUT/harness"
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echo
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echo "run it headless against Monado: tools/desktop-harness/run.sh"
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