Initial public release: OVRPlugin→OpenXR interoperability shim

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

ghidra_scripts/DumpInit.java

@@ -0,0 +1,55 @@
+// Decompile the real Vulkan-init path: any function that calls the vrapi Vulkan
+// creation imports, plus the Vk extension getters and Initialize impls.
+// -> ~/dev/re4vr-port/analysis/init_vulkan.txt
+// @category RE4VR
+import ghidra.app.script.GhidraScript;
+import ghidra.app.decompiler.*;
+import ghidra.program.model.listing.*;
+import java.io.PrintWriter;
+import java.util.*;
+
+public class DumpInit extends GhidraScript {
+    public void run() throws Exception {
+        String out = System.getProperty("user.home") + "/dev/re4vr-port/analysis/init_vulkan.txt";
+        PrintWriter w = new PrintWriter(out);
+
+        // imports whose callers we want to see
+        Set<String> wantCalls = new HashSet<>(Arrays.asList(
+            "vrapi_CreateSystemVulkan", "vrapi_CreateSystemVulkan2",
+            "vrapi_EnterVrMode", "vrapi_Initialize", "vrapi_GetDeviceExtensionsVulkan",
+            "vrapi_GetInstanceExtensionsVulkan"));
+        // also decompile functions whose own name matches these
+        String[] nameHits = { "InitializeVulkan", "GetInstanceExtensionsVk",
+            "GetDeviceExtensionsVk", "CreateSystemVulkan", "InitializeInternal" };
+
+        DecompInterface dec = new DecompInterface();
+        dec.openProgram(currentProgram);
+        FunctionManager fm = currentProgram.getFunctionManager();
+        Set<String> done = new HashSet<>();
+
+        for (Function f : fm.getFunctions(true)) {
+            boolean hit = false;
+            String nm = f.getName();
+            for (String s : nameHits) if (nm.contains(s)) { hit = true; break; }
+            if (!hit) {
+                try {
+                    for (Function callee : f.getCalledFunctions(monitor)) {
+                        if (wantCalls.contains(callee.getName())) { hit = true; break; }
+                    }
+                } catch (Exception e) {}
+            }
+            if (!hit) continue;
+            if (!done.add(f.getEntryPoint().toString())) continue;
+            try {
+                DecompileResults r = dec.decompileFunction(f, 90, monitor);
+                DecompiledFunction df = r.getDecompiledFunction();
+                if (df != null) {
+                    w.println("\n/* ===== " + nm + " @ " + f.getEntryPoint() + " ===== */");
+                    w.println(df.getC());
+                }
+            } catch (Exception e) {}
+        }
+        w.close();
+        println("DumpInit: wrote " + done.size() + " functions to " + out);
+    }
+}