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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
65 lines
2.9 KiB
Java
65 lines
2.9 KiB
Java
// Ghidra headless post-script: dump decompiled ovrp_* functions.
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// Signatures for all ovrp_*, full bodies for a core set ->
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// ~/dev/re4vr-port/analysis/ovrp_decomp.txt
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// @category RE4VR
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import ghidra.app.script.GhidraScript;
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import ghidra.app.decompiler.DecompInterface;
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import ghidra.app.decompiler.DecompileResults;
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import ghidra.app.decompiler.DecompiledFunction;
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import ghidra.program.model.listing.Function;
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import ghidra.program.model.listing.FunctionManager;
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import java.io.PrintWriter;
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import java.util.*;
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public class DumpOvrp extends GhidraScript {
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public void run() throws Exception {
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Set<String> CORE = new HashSet<>(Arrays.asList(
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"ovrp_PreInitialize3","ovrp_Initialize5","ovrp_Shutdown2","ovrp_Update3",
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"ovrp_BeginFrame4","ovrp_EndFrame4","ovrp_WaitToBeginFrame","ovrp_GetPredictedDisplayTime",
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"ovrp_GetNodePoseState3","ovrp_GetNodePoseStateRaw","ovrp_GetControllerState4",
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"ovrp_SetupLayer","ovrp_CalculateEyeLayerDesc2","ovrp_GetLayerTexture2",
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"ovrp_GetHmdToEyeOffset2","ovrp_GetSystemHeadsetType2","ovrp_SetupDistortionWindow3"
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));
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String out = System.getProperty("user.home") + "/dev/re4vr-port/analysis/ovrp_decomp.txt";
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DecompInterface dec = new DecompInterface();
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dec.openProgram(currentProgram);
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FunctionManager fm = currentProgram.getFunctionManager();
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List<String> sigs = new ArrayList<>();
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List<String> bodies = new ArrayList<>();
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int count = 0;
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for (Function f : fm.getFunctions(true)) {
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String name = f.getName();
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if (!name.startsWith("ovrp_")) continue;
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count++;
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try {
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DecompileResults res = dec.decompileFunction(f, 60, monitor);
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DecompiledFunction df = res.getDecompiledFunction();
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if (df != null) {
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sigs.add(df.getSignature());
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if (CORE.contains(name)) {
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bodies.add("/* ===== " + name + " @ " + f.getEntryPoint()
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+ " ===== */\n" + df.getC());
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}
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continue;
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}
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} catch (Exception e) { /* fall through */ }
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sigs.add("/* (decomp failed) */ " + name + " @ " + f.getEntryPoint());
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}
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Collections.sort(sigs);
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PrintWriter w = new PrintWriter(out);
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w.println("# ovrp_ functions decompiled from libOVRPlugin.so (v1.51 / pkg 19.0.0)");
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w.println("# total ovrp_ functions: " + count + "\n");
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w.println("## ===== SIGNATURES =====");
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for (String s : sigs) w.println(s);
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w.println("\n## ===== CORE FUNCTION BODIES =====\n");
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for (String b : bodies) { w.println(b); w.println(); }
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w.close();
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println("DumpOvrp: wrote " + count + " signatures (" + bodies.size()
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+ " core bodies) to " + out);
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}
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}
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