Merge main into vr-utilities: the performance HUD alongside comfort, keyboard, panels and media

Also from review: a SteamVR build without the timing exports can't break status
(AttributeError), and the device test class runs when the file is run directly.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.gitignore

@@ -6,3 +6,6 @@ compat-db/.env.lakebed.server
 compat-db/.lakebed/
 tests/smoke/results/
 mac/bin/
+
+# Downloaded at build time (frame/kdeconnect/fetch.py, app/build/fetch-deps.js)
+frame/kdeconnect/packages/

README.md

@@ -35,8 +35,8 @@ See what the headset sees, install games and Android apps, move files and text a
 <tr>
 <td width="50%" valign="top">
 
-**👓 Headset view**<br>
-Live video of what the lenses show (about 30 fps), or a still of both eyes. Zoom, pan, full screen, save as PNG.
+**👓 Headset view and Desktop**<br>
+Live video of what the lenses show, or of the app panel in use, flat and still however the wearer looks around. Turn on Control and tap or click right on it to use the Frame from your phone or computer.
 
 </td>
 <td width="50%" valign="top">
@@ -72,6 +72,9 @@ Drag files onto the window to send them. Drop a game's .zip, folder or .exe to a
 **📸 Screenshots**<br>
 Browse the shots you take in the headset and save them to your Pictures folder.
 
+**⌨️ Keyboard and trackpad**<br>
+Type and point in the Frame's apps from your computer or phone, through KDE Connect, which Frame Control brings along and sets up on the Frame. Nothing else to install, anywhere.
+
 </td>
 </tr>
 <tr>
@@ -90,9 +93,15 @@ SSH, SFTP, Steam Link, remote desktop, volume, sleep, restart and shut down.
 </tr>
 </table>
 
-Nothing is installed on the Frame for any of this: the app uses what SteamOS
+The optional [Family and comfort](docs/family-comfort.md) card adds session
+limits, breaks, local alerts and one-click casting. A session copies a small
+Frame Control worker into your headset user account.
+
+For the other features, nothing is installed on the Frame: the app uses what SteamOS
 already ships (sideloading a game copies Valve's own devkit scripts to
-`~/devkit-utils`, as Valve's Devkit Client does). [How each feature works](docs/frame-control.md).
+`~/devkit-utils`, as Valve's Devkit Client does). The optional
+[performance HUD](docs/vr-utilities.md) copies our own Python helpers into
+`~/.local/share/frame-control/vr/`. [How each feature works](docs/frame-control.md).
 
 ## Install
 
@@ -206,7 +215,7 @@ Frame's software fits together, all checked against a real headset and labelled
 | [Android apps (Lepton)](docs/apks.md) | Sideloading, the rated F-Droid catalogue, per-app instances |
 | [Sideloading Linux and Windows games](docs/sideloading.md) | A .zip, folder or .exe as a Steam Devkit Game, runtime detection |
 | [Install links for websites](docs/web-install.md) | `frame-control://install` links and manifests, the rules, a button to paste |
-| [Steam games](docs/steam-games.md) · [VR video](docs/vr-video.md) · [WebXR in Chromium](docs/webxr-chromium.md) | Installing and buying, watching VR180/360, the Chromium build |
+| [VR comfort and HUD](docs/vr-utilities.md) · [Steam games](docs/steam-games.md) · [VR video](docs/vr-video.md) · [WebXR in Chromium](docs/webxr-chromium.md) | Installing and buying, watching VR180/360, the Chromium build |
 | [Mac in the headset](docs/mac-in-headset.md) | Mac windows and screens as panels in the Frame, with laser and keyboard input |
 | [VR mods and custom songs](docs/mods.md) | Per-game feasibility, real-Frame results and blockers; no installer yet |
 | [SSH](docs/ssh.md) · [Streaming](docs/streaming.md) · [Files](docs/file-transfer.md) · [Panels](docs/panels.md) · [Tailscale](docs/tailscale.md) | Topic notes |
@@ -251,5 +260,7 @@ into a draft release, which reaches users once published. See
 
 ## License
 
-[MIT](LICENSE). Steam, Steam Frame and SteamVR are trademarks of Valve
+[MIT](LICENSE). The apps also ship other people's software under its own
+licence, notably KDE Connect (GPL) for the keyboard and trackpad; see
+[THIRD_PARTY_NOTICES.md](THIRD_PARTY_NOTICES.md). Steam, Steam Frame and SteamVR are trademarks of Valve
 Corporation. This project isn't affiliated with or endorsed by Valve.

THIRD_PARTY_NOTICES.md

@@ -0,0 +1,15 @@
+# Third-party software in Frame Control
+
+Frame Control's own code is under the [MIT licence](LICENSE). The apps also
+ship other people's software, unchanged, each under its own licence:
+
+| What | Where | Licence | Details |
+|---|---|---|---|
+| KDE Connect 24.02.2 and five libraries, as Valve builds them for the Frame | Desktop apps and the iPhone app; copied to the Frame for the keyboard and trackpad | GPL and LGPL (per package) | [frame/kdeconnect/NOTICE.md](frame/kdeconnect/NOTICE.md), licence texts in [frame/kdeconnect/LICENSES](frame/kdeconnect/LICENSES), complete source in the [kdeconnect-frame-24.02.2-1 release](https://github.com/saphid/frame-control/releases/tag/kdeconnect-frame-24.02.2-1) |
+| Python 3.12 ([python-build-standalone](https://github.com/astral-sh/python-build-standalone)) | Desktop apps | PSF License and others | Included with it, in the app's `python` folder |
+| adb (Android SDK Platform-Tools) | Desktop apps (not Linux arm64) | Apache-2.0 and others | `NOTICE.txt` in the app's `tools` folder |
+| Mozilla's CA certificate list, as published by curl | Desktop apps | MPL-2.0 | https://curl.se/docs/caextract.html |
+| Electron | Desktop apps | MIT (Chromium: BSD-3-Clause and others) | `LICENSE` and `LICENSES.chromium.html` in the app |
+
+Frame Control starts KDE Connect and talks to it over its network protocol;
+it doesn't link to it or include its code.

app/build/fetch-deps.js

@@ -1,7 +1,9 @@
 // Downloads what the app bundles so users install nothing else: a standalone
 // Python (python-build-standalone), adb (Android platform-tools) and a CA
 // bundle. Each goes in build/deps/<os>-<arch>/{python,tools}, which package.json
-// copies into the app's resources. Everything is pinned by version and SHA-256.
+// copies into the app's resources. Also KDE Connect for the Frame (the same arm64
+// packages for every build), into ../frame/kdeconnect/packages as listed in
+// ../frame/kdeconnect/packages.json. Everything is pinned by version and SHA-256.
 //   node build/fetch-deps.js mac arm64 | win x64 | linux x64 arm64
 const crypto = require("crypto");
 const fs = require("fs");
@@ -127,8 +129,26 @@ async function fetch(os, arch) {
   console.log(`${key}: ${version} -> ${out}`);
 }
 
+// As frame/kdeconnect/fetch.py does for the iPhone app's bundle.
+async function fetchKdeConnect() {
+  const dir = path.join(__dirname, "..", "..", "frame", "kdeconnect");
+  const manifest = JSON.parse(fs.readFileSync(path.join(dir, "packages.json"), "utf8"));
+  const out = path.join(dir, "packages");
+  fs.mkdirSync(out, { recursive: true });
+  const sha = (file) => crypto.createHash("sha256").update(fs.readFileSync(file)).digest("hex");
+  for (const p of manifest.packages) {
+    const file = path.join(out, p.file);
+    if (fs.existsSync(file) && sha(file) === p.sha256) continue;
+    await download(manifest.release + p.file, p.sha256, file);
+  }
+  const wanted = new Set(manifest.packages.map((p) => p.file));
+  for (const f of fs.readdirSync(out)) if (!wanted.has(f)) fs.rmSync(path.join(out, f), { recursive: true, force: true });
+  console.log(`KDE Connect for the Frame: ${manifest.packages.length} packages -> ${out}`);
+}
+
 (async () => {
   const [os, ...archs] = process.argv.slice(2);
   if (!os || !archs.length) throw new Error("usage: node build/fetch-deps.js <mac|win|linux> <arch>...");
   for (const arch of archs) await fetch(os, arch);
+  await fetchKdeConnect();
 })().catch((e) => { console.error(e.message); process.exit(1); });

app/main.js

@@ -1,7 +1,7 @@
 // Frame Control as a desktop app (macOS, Windows, Linux): starts ui/server.py on
 // a free loopback port and shows it in a native window. The server does all the
 // work over the `frame` SSH alias; this file only hosts it.
-const { app, BrowserWindow, Menu, clipboard, dialog, ipcMain, shell } = require("electron");
+const { app, BrowserWindow, Menu, Notification, clipboard, dialog, ipcMain, shell } = require("electron");
 const { execFile, spawn } = require("child_process");
 const { promisify } = require("util");
 const fs = require("fs");
@@ -249,10 +249,26 @@ function fromUi(e) {
 
 ipcMain.handle("clipboard:read", (e) => fromUi(e) ? clipboard.readText() : "");
 ipcMain.handle("connection:setup", (e) => { if (fromUi(e)) setUpConnection(); });
+ipcMain.on("keys:capture", (e, on) => { if (fromUi(e)) win.webContents.setIgnoreMenuShortcuts(on === true); });
 ipcMain.handle("update:get", (e) => fromUi(e) ? publicUpdate() : null);
 ipcMain.handle("update:check", (e) => fromUi(e) ? checkForUpdate({ manual: true }).then(publicUpdate) : null);
 ipcMain.handle("update:install", (e) => { if (fromUi(e)) installUpdate(); });
 
+ipcMain.handle("comfort:notify", (e, message) => {
+  if (!fromUi(e) || typeof message !== "string" || message.length > 500) throw new Error("Invalid notification");
+  if (!Notification.isSupported()) throw new Error("System notifications are unavailable");
+  return new Promise((resolve, reject) => {
+    const notification = new Notification({title: "Frame Control", body: message});
+    const timer = setTimeout(() => reject(new Error("Notification delivery was not confirmed. Check system notification settings.")), 5000);
+    notification.once("show", () => { clearTimeout(timer); resolve(true); });
+    notification.once("failed", (_event, error) => {
+      clearTimeout(timer);
+      reject(new Error("Notification delivery failed. Check system notification settings: " + error));
+    });
+    notification.show();
+  });
+});
+
 // frame-control://install links from websites (docs/web-install.md). They can
 // arrive before the window or server exists (macOS open-url on a cold launch),
 // so they wait here until the page asks for them. The page checks the link with
@@ -375,7 +391,7 @@ function createWindow() {
     title: "Frame Control", backgroundColor: BG, show: false,
     ...(IS_MAC ? { titleBarStyle: "hiddenInset", trafficLightPosition: { x: 18, y: 26 } }
                : { icon: path.join(__dirname, "build", "icon.png") }),
-    webPreferences: { contextIsolation: true, nodeIntegration: false, sandbox: true,
+    webPreferences: { contextIsolation: true, nodeIntegration: false, sandbox: true, backgroundThrottling: false,
                       preload: path.join(__dirname, "preload.js") },
   });
   win.once("ready-to-show", () => win.show());

app/package.json

@@ -66,6 +66,14 @@
           "*.py"
         ]
       },
+      {
+        "from": "../frame/openxr-compat",
+        "to": "frame/openxr-compat",
+        "filter": [
+          "XrApiLayer_FRAME_compat.json",
+          "prebuilt/**/*.so"
+        ]
+      },
       {
         "from": "../frame/devkit-utils",
         "to": "frame/devkit-utils",
@@ -74,6 +82,16 @@
           "!**/__pycache__/**"
         ]
       },
+      {
+        "from": "../frame/kdeconnect",
+        "to": "frame/kdeconnect",
+        "filter": [
+          "packages.json",
+          "NOTICE.md",
+          "LICENSES/**/*",
+          "packages/*.pkg.tar.zst"
+        ]
+      },
       {
         "from": "../apk-catalog",
         "to": "apk-catalog",
@@ -96,6 +114,14 @@
         "filter": [
           "**/*"
         ]
+      },
+      {
+        "from": "../THIRD_PARTY_NOTICES.md",
+        "to": "THIRD_PARTY_NOTICES.md"
+      },
+      {
+        "from": "../LICENSE",
+        "to": "LICENSE"
       }
     ],
     "mac": {

app/preload.js

@@ -9,8 +9,11 @@
 const { contextBridge, ipcRenderer, webUtils } = require("electron");
 
 contextBridge.exposeInMainWorld("frameApp", {
+  notify: (message, request) => ipcRenderer.invoke("comfort:notify", message, request),
   readClipboard: () => ipcRenderer.invoke("clipboard:read"),
   setUpConnection: () => ipcRenderer.invoke("connection:setup"),
+  // While the keyboard-and-trackpad panel holds the keyboard, ⌘W, ⌘R and the rest go to the Frame.
+  captureKeys: (on) => ipcRenderer.send("keys:capture", !!on),
   pathForFile: (file) => { try { return webUtils.getPathForFile(file) || ""; } catch { return ""; } },
   // Updates (app/updater.js): the page shows a banner and an Update button.
   update: {

docs/evidence/vr-utilities/device.json

@@ -0,0 +1,53 @@
+{
+  "date": "2026-09-28",
+  "os": {
+    "version": "0.4.1",
+    "build": "20260925.6191901",
+    "variant": "vr"
+  },
+  "performance": {
+    "compositorFps": 72.0,
+    "frameMs": 13.89,
+    "appFps": null,
+    "gpuMs": 3.07,
+    "compositorCpuMs": 0.61,
+    "cpuPercent": 40.6,
+    "gpuMHz": 903.0
+  },
+  "batteryPercent": 16,
+  "maxTempC": 73.5,
+  "ownership": [
+    {
+      "id": 1009850,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    },
+    {
+      "id": 1173510,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    },
+    {
+      "id": 1068820,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    },
+    {
+      "id": 908520,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    },
+    {
+      "id": 1494460,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    }
+  ],
+  "hudLifecycle": "open, duplicate-open, close passed before control-test pause; overlay probe removal verified",
+  "comfort": "Initial 1cm seated probe restored exactly. Later commits/readback disagreed while Frame in use; Alex paused control tests. No controls shipped."
+}

docs/evidence/vr-utilities/review.md

@@ -0,0 +1,58 @@
+# Independent review attempts — 2026-09-28
+
+Target: the implementation and evidence in
+[3fb541d](https://github.com/saphid/frame-control/commit/3fb541d) and
+[6a63a5a](https://github.com/saphid/frame-control/commit/6a63a5a), supplied as a
+frozen diff before those commits were made. No executable code changed after
+the final review snapshot.
+
+Requested model: **SWE-2 Max**, explicitly selected with `--model swe-2-max`.
+No completed verdict or model self-identification was returned. This is not a
+passed review, and there is no "no actionable findings" claim.
+
+## First attempt
+
+Launcher:
+
+```sh
+devin -p --model swe-2-max --permission-mode auto --respect-workspace-trust false --prompt-file /tmp/frame-vr-review-prompt.txt
+```
+
+The prompt required read-only review, no delegation, no edits and no Frame
+access. The reviewer inspected surrounding code, then stopped while checking
+the public OpenVR header. The tool runner reported:
+
+> warning: rejected a tool call that requires confirmation. Running in non-interactive mode.
+
+The real launcher exit status was **0**, but no verdict was returned. A zero
+process status here is not evidence that the review completed.
+
+## Tool-free retry
+
+Launcher:
+
+```sh
+devin -p --model swe-2-max --permission-mode auto --respect-workspace-trust false --prompt-file /tmp/frame-vr-review-final-prompt.txt
+```
+
+The self-contained prompt supplied the complete frozen changes, surrounding
+code, standards and locally fetched authoritative OpenVR header excerpts. It
+explicitly prohibited tools, edits, delegation and device access. This avoided
+the first attempt's permission boundary without escalating permissions.
+
+No output or verdict arrived within the fifteen-minute review window. The
+process was sent SIGTERM at 918 seconds; the shell recorded real exit status
+**143**. Findings are unavailable. Review must be completed before considering
+this partial draft ready; playspace feasibility is also still paused.
+
+## Other validation
+
+- 166 Python unit tests passed locally.
+- 8 website tests and UI JavaScript syntax passed locally.
+- Desktop and phone-width attached-preview checks passed using live telemetry;
+  paid optional install buttons were disabled, and unavailable metrics cleared.
+- [Fake-Frame CI](https://github.com/saphid/frame-control/actions/runs/36423548487/job/108931878908)
+  passed, as did Windows/Linux server tests and the main checks job. Docker was
+  unavailable locally. macOS/iOS jobs were still queued at this handoff.
+- Real-device evidence and the paused-control limitation are in
+  [VR utilities](../../vr-utilities.md).

docs/family-comfort.md

@@ -0,0 +1,122 @@
+# Family and comfort
+
+Frame Control's Home tab has a **Family and comfort** card, on desktop and
+on iPhone. No third-party notification or parental-control app is needed.
+This is Frame Control code using Python, Steam and SteamVR already on the Frame.
+
+![Family and comfort controls in the desktop app](img/comfort-desktop.png)
+
+## Sessions
+
+Set a limit of 1–240 minutes, optional break and check-in intervals, then
+**Start session**. Break and check-in intervals of 0 turn those reminders off.
+**Cancel session** cancels the timer and monitoring without changing the game.
+Cancel before starting a session with different settings.
+
+The Frame shows a one-minute warning, then opens Steam Home in its dashboard.
+**Games stay running**: save and pause before the limit. Some games pause when
+the dashboard opens; others do not. There is no kill, power-off, Steam restart,
+account restriction or parental lock. The wearer can return to the game.
+
+**Documented implementation:** the timer is a single, opt-in Python worker in
+the Frame user's account. Desktop and iPhone share its state. It keeps going
+when the companion disconnects, closes or is suspended. It exits after
+completion or cancellation (normally within five seconds). Cancellation waits
+for any in-flight SteamVR action to finish within its timeout; it is not a boot
+service. A Frame reboot invalidates the session. Suspend counts toward the
+limit, using Linux's boot-time clock. If a warning was delayed by suspend or a
+SteamVR failure, Home waits until at least a full minute after a successful
+warning. A failed Home transition remains active and retries, with an error
+shown in the companion. A stale worker is reported as unverified enforcement.
+
+## Alerts and breaks
+
+During a session, battery, overheating and check-in alerts go to connected
+companions. Break reminders and session warnings also appear on the headset.
+
+- **Low battery:** 15% or below while discharging. One alert until charging or
+  recovery to 20%, so values around 15% do not produce repeated notifications.
+- **Overheating:** a thermal zone reaches its own kernel-reported hot/critical
+  trip, or the battery reports `Overheat`. Missing sensors mean unknown, not
+  safe. These are status alerts, not medical advice or an extra thermal governor.
+- **Check in:** an alert after the chosen number of active minutes.
+- **Breaks:** a SteamVR reminder and companion notification at the chosen interval.
+
+**Inferred:** SteamVR activity levels 1 and 2 are a useful proxy for use, not
+proof someone is wearing the headset. Inactive readings reset continuous use;
+missing readings add no time. Long gaps count at most 30 seconds. Breaks and
+check-ins are distinct from the elapsed-time session limit.
+
+Click **Enable / test notifications** on each companion. iOS asks for permission;
+macOS, Windows and Linux follow their notification settings. The page also shows
+recent events and errors. Keep Frame Control open and connected for companion
+alerts. **Phone alerts are local, not push notifications:** iOS suspension,
+force-quit or a lost SSH connection prevents live delivery. Old alerts are not
+replayed as a notification burst on reconnect. Headset warnings and the session
+limit continue without the phone. A physical iPhone's background delivery has
+not been verified and is not guaranteed.
+
+## Casting
+
+**Cast headset view** starts the existing headset Live view and requests full
+screen where supported. Show that screen to people in the room, or use the
+computer/phone's own screen mirroring. It creates no new stream transport,
+public URL or LAN server. iPhone uses the inline viewer if full screen is not
+available. The image includes private content visible to the wearer.
+
+## What is installed
+
+The shared authenticated `/api/comfort` endpoint copies three bundled Python
+files to `~/.cache/frame-control/comfort/<content-hash>/`. Session state and
+locks live in `~/.local/state/frame-control/comfort/`, with a private directory
+and 0600 state file. There is no network listener or system service. Cancel a
+session before removing these directories. The iPhone's normal server still
+exits on disconnect; the explicitly started comfort worker is the exception.
+
+## Verification
+
+**Verified 2026-09-28**, SteamOS 0.4.1, build `20260925.6191901`: shipped
+`/opt/steamvr/bin/linuxarm64/vrcmd --notify TEXT` reported success for a custom
+reminder. Steam's CDP `SteamUIStore.Navigate('/library/home')` and
+`SteamClient.OpenVR.VROverlay.ShowDashboard('valve.steam.gamepadui.main')`
+opened Home while the running app ID stayed unchanged. Prior page and dashboard
+visibility were restored. Kernel hot/critical trips and SteamVR activity were
+read from the real device. No temperature or battery fault was induced.
+
+**Verified locally:** deterministic fake-Frame tests cover late warnings,
+failed warnings/Home actions, cancellation, activity gaps, thresholds, duplicate
+suppression, reboot invalidation, shared session state and the exact Home
+JavaScript. `python3 -m unittest discover -s tests` runs them. The iOS Simulator
+build tests notification content and bounds. Physical iPhone delivery and
+wearer-perceived headset notification visibility remain unverified.
+
+**Verified end to end on the same Frame:** a two-minute session with no companion
+connection for 135 seconds emitted its warning, break and check-in, then opened
+Home. The running app ID was unchanged; the test restored the previous page and
+dashboard visibility and confirmed the worker exited. Casting through the Home
+shortcut decoded the existing headset stream at 30 fps.
+
+**Verified on the iOS 26.5 Simulator:** connected to the real Frame, approved the
+notification prompt, and saw the native Frame Control test banner. Seven iOS
+tests passed.
+
+![Native test notification in the iOS Simulator](img/comfort-notification-ios.png)
+
+Desktop and 390-pixel phone layouts had no horizontal overflow.
+On macOS the development Electron app's real notification attempt was denied
+(`UNErrorDomain` 1); the bridge now returns that failure instead of reporting
+success. Successful macOS/Windows/Linux notification display remains unverified.
+
+**Verified on the real Frame:** its naturally discharging 15% battery produced
+one low-battery event during a short session; the test then cancelled the
+session. Overheating alerts use fake sensor samples in tests: the shared
+headset was not deliberately overheated.
+
+**Verified 2026-09-29 on the same Frame:** a fresh one-minute session opened
+Home more than 60 seconds after the successful warning. The test restored the
+previous page and dashboard visibility. Local regression coverage now includes
+slow notification delivery, a total Home-action timeout, failed worker startup,
+unreadable saved state, malformed activity samples and notification UX: 173
+Python tests passed. Desktop and 390-pixel layouts were checked again; system
+notification-denial guidance stayed visible across polls. Initial event history
+did not replay notifications, and only the latest new event was announced.

docs/frame-control.md

@@ -92,8 +92,11 @@ app bundles `ui/`, `scripts/`, `frame/android/`, Valve's `frame/devkit-utils/` a
 ([python-build-standalone](https://github.com/astral-sh/python-build-standalone))
 and `adb` from Google's platform-tools, so there's nothing else to install. It
 also bundles curl's copy of Mozilla's CA list, because Python on Windows only
-trusts root certificates already in the Windows store.
-`app/build/fetch-deps.js` downloads both, pinned by SHA-256.
+trusts root certificates already in the Windows store. And it bundles KDE
+Connect for the Frame (Valve's arm64 build and five libraries, 3.6 MB,
+[`frame/kdeconnect`](../frame/kdeconnect/NOTICE.md)), which it copies to the
+Frame for the keyboard and trackpad.
+`app/build/fetch-deps.js` downloads all of it, pinned by SHA-256.
 
 The server is Python stdlib only and listens on 127.0.0.1. It rejects requests
 with a non-local `Host` header, and any `/api/` request without a custom

docs/how-the-frame-works.md

@@ -38,6 +38,11 @@ Lepton (Android 11, podman container "lepton-dev") ← its own panel, app 305600
 | SteamVR settings live in `~/.config/openvr/config/steamvr.vrsettings`, not under `~/.local/share/Steam/config/`. `dashboard.lastAccessedExternalOverlayKey` names the last panel you used. | Settings tweaks |
 | The Steam client's journal (`journalctl --user`) carries SteamVR system UI lines such as `[Overlays] Created: …` and `vroverlay_uid<appid>`. It's the quickest way to see panels come and go. | Debugging |
 | Present: `rsync`, `flatpak`, `python3`, `git`, `qdbus6`, `xrdp`, `xprop`, `xwininfo`, `xterm`, `konsole`, `dolphin`, `gamescopectl`. Missing: `wl-copy`, `xclip`, `xsel`, `kdeconnect-cli`, `tailscale` (installable in `~`, see below), `krfb`, `wayvnc`. | Script design |
+| **SteamOS updates arrive on their own.** The Frame went from 0.3.0 (build 20260922.6101926) to **0.4.1, build 20260925.6191901**, between 2026-09-27 and 2026-09-28 with no action from us; `~` (keys, user Flatpaks, `~/.local/share`) survived. **Verified 2026-09-28.** | Keep changes in `~` |
+| **Valve's package repository has more than the image.** `pacman -Si` / `pacman -Sp` work as `steamos` without root and list Valve's own builds, such as `kdeconnect` 24.02.2 and `python-evdev` 1.7.0 in `extra`. Unpacking those packages into `~` runs them without touching the read-only root. The repository URLs say not to share them, so never write them down; Valve also publishes each build's source package there (`sources/packages/`), which is how Frame Control got the complete source for the KDE Connect it ships. **Verified 2026-09-28**, SteamOS 0.4.1. | [streaming.md](streaming.md#input-type-and-point-in-the-frame-from-the-mac-or-iphone) |
+| **gamescope has its own input injection.** An EIS socket at `/run/user/1000/gamescope-0-ei` (libei 1.4.1 is on the image) offers "Gamescope Virtual Input": relative and absolute pointer, buttons, scroll, keyboard. It drives the panel that has focus in the headset, on either X display. Focus moves only with the controller's laser (or to a new panel when none has it); `gamescopectl focus_info` prints the focus state to the journal. **Verified 2026-09-29.** | [streaming.md](streaming.md#live-view-and-control-watch-a-panel-and-tap-on-it) |
+| **A panel's own pixels:** `ffmpeg -f x11grab -window_id <window> -i :<display>` captures one window (x11grab of the root is black under gamescope). Panels live on `:0` (Steam's UI, windows tagged by `panel-on-frame.sh`) or `:1` (apps Steam starts). **Verified 2026-09-29.** | Frame Control's Desktop view |
+| **gamescope runs two Xwayland displays.** `:0` holds Steam's VR bar and menus (`valve.steam.gamepadui.*`) and ignores XTest pointer motion; `:1` holds apps such as Chromium and takes it. There's also a libei socket, `/run/user/1000/gamescope-0-ei`. **Verified 2026-09-28**, SteamOS 0.4.1. | Keyboard and trackpad |
 | Flathub is a **system** remote. `--user` installs over SSH work and show up in the desktop menu. | `install-apps.sh` |
 | `/` is 10 GB and read-only. `/home` is 929 GB. | Where to put things |
 | Clipboard: Klipper over the nested D-Bus bus (`qdbus6 org.kde.klipper …`). | `paste-to-frame.sh` |

docs/iphone.md

@@ -12,7 +12,8 @@ An iPhone can't run Python or `ssh`, but the Frame can. So the app:
 1. connects to the Frame over SSH itself (the [Citadel](https://github.com/orlandos-nl/Citadel)
    Swift SSH library), with its own ed25519 key from the Keychain;
 2. copies Frame Control's server and helpers (`ios/scripts/make_frame_bundle.py`,
-   under 1 MB) to `~/.cache/frame-control/<version>` on the Frame, once per version;
+   4.6 MB, 3.6 MB of it the KDE Connect the keyboard and trackpad use) to
+   `~/.cache/frame-control/<version>` on the Frame, once per version;
 3. starts `ui/server.py` there with `FRAME_LOCAL=1`. It listens only on the
    Frame's own 127.0.0.1, and it stops when the phone disconnects (`--exit-on-eof`);
 4. tunnels to it through the SSH session and shows the same page as the desktop
@@ -25,7 +26,10 @@ as its transport too), so the desktop and phone share one code path. Android
 display settings use `podman exec` into each Lepton container instead of adb,
 which the Frame doesn't have.
 
-Nothing is left running on the Frame after the phone disconnects; the copied
+The app server stops after the phone disconnects. An explicitly started
+[comfort session](family-comfort.md) keeps its timer and headset reminders running
+until the session ends or is cancelled; phone notifications require the app to
+remain connected and running. The copied
 files stay in `~/.cache/frame-control` (delete it any time).
 
 ## Pairing
@@ -107,3 +111,11 @@ running), a real sleep/restart/shut down on the Frame, and a physical iPhone.
 Debug builds have Simulator test hooks (`FRAME_TEST_HOST`, `FRAME_TEST_PAGE`,
 `FRAME_TEST_JS`, and the tunnel URL in the app's Caches folder); release builds
 don't.
+
+## Family and comfort
+
+The shared Home card sets session limits, breaks and check-ins, and offers
+**Cast headset view**. **Enable / test notifications** requests iOS notification
+permission and sends a local test. These are local notifications, not APNs push;
+iOS background suspension can interrupt phone alerts. The headset timer still
+runs. See [the behavior and verification limits](family-comfort.md).

docs/mac-in-headset.md

@@ -468,3 +468,18 @@ versus on, medians of the runs, ms):
   window to the front first.
 - Ctrl stays Ctrl. On the Mac, copy is ⌘C, so use Meta+C on a keyboard paired
   with the Frame.
+
+## Switching panels and workspace limits
+
+**Tools → Panel switcher** lists open SteamVR panels, including Mac viewers.
+Use **Show** to request focus or **Open in headset** for Frame Control's own
+switcher panel. It uses SteamVR/gamescope and Chromium, with no third-party
+overlay app. [Device checks and limits](panels.md#frame-controls-panel-switcher)
+include the difference between a panel surviving a scene launch and staying
+visible over it.
+
+Saved spatial layouts are blocked on this build: the public OpenVR transform
+setter denies access to gamescope-owned panels. Reconnecting an existing viewer
+is supported; restoring its room position after a reboot is not. We do not
+save short-lived Mac window IDs or viewer access keys as if they were a durable
+workspace. See [the feasibility evidence](panels.md#saved-spatial-layouts-blocked-on-the-current-panel-route).

docs/open-questions.md

@@ -102,10 +102,11 @@ Still open: 4, 6, 7, 12–15, 16 (off-LAN and after a reboot), 17–21.
 20. **F-Droid 2.0** (Compose 1.12): does it run? If so, the catalogue can
     install it instead of 1.17.2.
 
-21. **DeoVR local files:** does DeoVR's file browser show `Videos → VR`
-    (the symlink from `push-vr-video.sh`) or `Z:\home\steamos\Videos\VR`, and do
-    the colour-coded test clips play in 3D (red left eye, cyan right) for both
-    H.264 and H.265? Does the DLNA browser find a server on the Mac?
+21. **Owned media player:** worn-headset comfort, audio quality/lip sync, long
+    movies and 4K/8K decoding remain to check. Native spatial-photo container
+    extraction, large/immersive splats and existing-panel theatre docking need
+    further implementation. Remote eye isolation, short hardware decode and
+    owned-overlay cleanup are verified; see [vr-video.md](vr-video.md).
 
 ## Verified 2026-09-27
 

docs/panels.md

@@ -121,5 +121,171 @@ a limit on the number of floating panels.
   script needed.
 - **Inside the desktop panel**: KWin tiling (Meta+arrow keys with a Bluetooth
   keyboard) or virtual desktops arrange windows within the 1280×800 rectangle.
-- **Windows-only overlay tools** (Desktop+, OVR Toolkit, OVRdrop) do this for a
-  PC's desktop in SteamVR. They don't run on the Frame's standalone Linux.
+- **Optional overlay tools:** Desktop+, OVR Toolkit and similar software are
+  separate from Frame Control. Public reports describe some Proton support;
+  Windows-only does not by itself prove a Frame app cannot run. Local status
+  and sources are in [VR utilities](vr-utilities.md).
+- **Our performance HUD:** Home → VR comfort and performance → Open HUD in
+  headset creates its own gamescope panel using built-in tools. It needs no
+  third-party overlay app. [Metrics and verification](vr-utilities.md).
+
+## Frame Control's panel switcher
+
+**Verified 2026-09-28**, SteamOS 0.4.1, BUILD_ID `20260925.6191901`,
+SteamVR 2.18.1: **Tools → Panel switcher** lists SteamVR's open main panels,
+including panels that are currently hidden. **Show** asks SteamVR to bring one
+forward. **Open in headset** opens the same switcher as its own panel; choose
+it again from Steam's dashboard after switching away. Refresh updates the list.
+This is a list, not thumbnail Exposé.
+
+![Frame Control's switcher rendered on the Frame](img/panel-switcher.png)
+
+This is our own Python/HTML implementation (`ui/frame_panels.py`), using the
+Frame's shipped `vrcmd` OpenVR client and gamescope. The headset page uses
+Chromium (Chromium XR when present, then system Chromium, then the existing
+Chromium Flatpak). No XSOverlay, OVR Toolkit, WayVR or other overlay application
+is needed. This dependency boundary also applies to future layout and panel
+persistence work: platform APIs and bundled libraries are fine; another app
+must not implement the feature for us.
+
+The companion runs the helper over SSH. Opening it in the headset installs a
+copy under `~/.local/share/frame-control/panels/` and starts a loopback HTTP
+server and an isolated Chromium profile. There is no startup service or global
+setting change. Close the switcher to stop its server and browser. Other
+Chromium profiles, Steam and SteamVR are left alone. If the window or runtime
+closes, use **Open in headset** again.
+
+The page carries a random, per-process access key in its URL fragment, removes
+it from the address bar, keeps it in tab session storage for page reloads, and
+sends it in a header. Panel lists and actions need
+that key; Host and Origin checks reject other sites. The key permits only
+listing panels, requesting focus and closing this switcher. Like Mac viewer
+launch tickets, it is initially readable by another process running as the
+same Frame user. Panel titles are rendered as text, never HTML. The companion
+retains its existing request guards. No Mac capture credentials cross this API.
+
+**Verified:** the real headset page rendered its panel list (image above), its
+HTTP focus request changed `GAMESCOPE_FOCUSED_APP` to `2000999030`, a request
+without the key returned HTTP 403, and Close stopped the helper and its browser.
+Opening an already running switcher requests its focus rather than creating a
+second one. The companion uses the same list/focus helper. **Unverified:** laser
+selection while wearing the headset, physical placement, and non-XR Chromium.
+The API reports that focus was *requested*: another action can take focus before
+we observe the result. Closed panels are rejected after re-enumeration.
+
+### Shared-device recheck, 2026-09-29
+
+**Verified:** the follow-up's atomic `mkdir /tmp/frame-test.lock` attempts
+failed because another thread held the lock. The existing lock was left alone;
+no applications were installed, launched or stopped in this follow-up. The last
+read-only battery check showed 62%, charging. The 180 Python and 8 website tests
+passed again locally.
+
+**Unverified in this follow-up:** the prepared browser-button test (Refresh,
+selection, reload and Close) and repeated OpenXR transition could not run under
+the shared lock. The device results elsewhere in this page are the earlier
+2026-09-28 observations, not results from this blocked recheck. In particular,
+HTTP focus is not evidence of worn-headset laser input. Follow the
+[shared-device test procedure](testing.md#headset-smoke-test) for the next run.
+
+## Saved spatial layouts: blocked on the current panel route
+
+**Verified 2026-09-28**, same build, using a temporary xterm panel with
+`STEAM_GAME=2000999031` and `FnTable:IVROverlay_028` from
+`/opt/steamvr/bin/linuxarm64/libopenvr_api.so`:
+
+| OpenVR call | Result |
+|---|---|
+| `FindOverlay("valve.steam.desktopgame.2000999031")` | Success |
+| `GetOverlayWidthInMeters` | Success, 2.67 m |
+| `SetOverlayWidthInMeters` (same width) | Success |
+| `GetOverlayTransformType` | Success, type 5 (`VROverlayTransform_DashboardTab`) |
+| `GetOverlayTransformAbsolute` | 18 (`WrongTransformType`) |
+| `SetOverlayTransformAbsolute` (identity rotation, 1.2 m up, 1.5 m forward) | 12 (`PermissionDenied`); type remained 5 |
+
+The public interface names type 5 **DashboardTab**; SteamVR's dashboard code
+places these panels through its scene graph. It owns the frame/docking
+transforms. A successful width setter does not grant permission to restore the
+position. `vrcmd --dock-overlay world <key>` dispatched a docking request but
+the dashboard logged `Failed to get SGTransform in setInitialTransformForLocation.
+Invalid transform ID`. This does not establish working world placement.
+
+**Inferred:** saving X11 pixel rectangles or Mac window IDs would not restore
+this spatial arrangement. Mac window IDs also change when an application
+reopens; viewer tickets and reconnect keys must not go into a layout file.
+The base Mac stream reconnects after a network break, but that is different
+from recreating windows and their room positions after a reboot.
+
+There is consequently no Save/Restore control yet. A durable layout needs a
+working transform restore path, stable source identity, and a fresh capture
+permission/ticket flow. The tested gamescope-owned overlay route denies that
+transform operation. A future Frame Control-owned overlay renderer, or a
+supported platform API for dashboard frame transforms, needs its own device
+proof before building layout UI. This is a blocker for the current approach,
+not a claim that all possible implementations are impossible. Reboot recovery
+was not tested: the shared headset was not rebooted.
+
+## Panels during an immersive session
+
+**Verified 2026-09-28**, same build: our Chromium switcher panel remained in
+OpenVR's overlay list before, during and after the Frame's shipped `helloxr -g
+Vulkan` sample. During the test `vrcmd --stats` identified
+`system.generated.openxr.helloxr.helloxr`, with 242 frame submissions. The test
+ended only its own sample process; no SteamVR, Steam, power or global settings
+were changed. The switcher was still selectable afterwards.
+
+This proves survival of that panel across an OpenXR scene session, **not** that
+it stayed visibly composited over the scene: OpenVR reported it `not_visible`
+before, during and after. **Verified:** calling `ShowOverlay` on our
+*gamescope-owned* switcher overlay returns 12 (`PermissionDenied`). A helper
+cannot force that panel visible using the public overlay call. Use the
+switcher/dashboard to request access to it; we do not fight the runtime with a
+repeated force-focus loop.
+
+**Verified in a second controlled run:** a live H.264 test-pattern stream from
+this checkout's Mac helper, through its own SSH tunnel and a temporary Chromium
+profile, survived the same OpenXR sample (257 scene-frame submissions). Its
+panel `2000999032` changed from `visible` before launch to `not_visible` during
+and after the scene. The Mac helper still reported the same `test` stream;
+captured frames increased from 35 to 232, with 29.5 decoded/drawn fps afterwards.
+The test did not capture personal Mac windows or inject Mac input. The sample,
+viewer, temporary profile, tunnel and Mac helper were cleaned up. This proves
+stream survival, and also shows why it must not be advertised as always visible.
+
+**Unverified:** persistent visible placement while playing a Steam-launched VR
+game, Plasma desktop and real Mac-window behavior during that launch, and worn
+headset input. Other threads were launching games and changing the runtime on
+the shared device, so those transitions were not treated as controlled evidence.
+A runtime/X-server restart can destroy the viewer windows; a network reconnect
+cannot recreate them. No “always visible during games” guarantee is shipped.
+
+## Keyboard passthrough feasibility
+
+**Verified 2026-09-28**, same build, using `FnTable:IVRTrackedCamera_006`:
+`HasCamera(0)` returned success and true. `GetCameraFrameSize` returned 100
+(`OperationFailed`), with zero dimensions, for all three public frame types
+(distorted, undistorted and maximum-undistorted), including after acquiring the
+video service. Acquisition returned success and a handle; release returned 101
+(`InvalidHandle`). The probe shut down its OpenVR client afterwards. No camera
+frames were captured and no camera settings were changed.
+
+**Documented:** the public OpenVR camera interface provides camera frame sizes,
+intrinsics, projections and streaming handles; these are prerequisites for a
+spatially aligned camera cutout. See Valve's
+[OpenVR C API](https://github.com/ValveSoftware/openvr/blob/master/headers/openvr_capi.h).
+
+**Inferred:** camera presence alone does not establish access to camera pixels.
+The failed frame-size path blocks a keyboard cutout in our current panel
+implementation. We have not established a keyboard detector or a calibrated
+camera-to-panel mapping. Built-in full-room passthrough is not proof of a
+public, selectively masked camera stream. No keyboard cutout is offered, and
+no third-party camera/overlay app is substituted for it.
+
+## Frame Control's media theatre
+
+[The owned media player](vr-video.md) can show its video or stereo image on a
+larger, head-relative screen with its own dark surround. **Verified remotely
+2026-09-28**, SteamOS 0.4.1 / BUILD_ID 20260925.6191901: screen, eye isolation,
+surround and cleanup. It does not alter panel docking or global settings.
+Its `Overlay` RGBA rendering hook is available to stream producers; applying
+SteamVR theatre docking to existing Mac/PC panels is still unverified here.

docs/scripts.md

@@ -99,7 +99,7 @@ controls to place each panel. See [docs/panels.md](panels.md).
 | `scripts/frame-ui.sh` | Mac | Start the Frame Control web UI (`ui/server.py`) and open it (**verified**) |
 | `scripts/apk-catalog.sh` | Mac | Refresh the rated F-Droid catalogue that Frame Control's Android section shows (**verified**) |
 | `scripts/compat-db-backup.sh` | Mac | Maintainer-only: back up the shared compatibility database locally and to Google Drive (**verified**) |
-| `scripts/push-vr-video.sh` | Mac → Frame | Upload VR180/360 videos to `~/Videos/VR`, linked into DeoVR's Proton prefix; `--launch` starts DeoVR (**verified**: upload and link; in-headset playback of local files not yet checked). See [docs/vr-video.md](vr-video.md) |
+| `scripts/push-vr-video.sh` | Computer → Frame | Upload movies, stereo PNG/JPEG or small `.splat` files to `~/Videos/FrameControl`; `--launch` starts our OpenVR player, `--theatre` adds a larger screen and dark surround. No separate viewer. **Verified remotely**: decode, stereo output and cleanup; worn-headset checks remain. See [docs/vr-video.md](vr-video.md) |
 | `scripts/push.sh` | Mac → Frame | `rsync` files to `~/Downloads` (or a given path) on the Frame (**verified**) |
 | `scripts/serve-bootstrap.sh` | Mac | Fallback: serve `bootstrap-on-frame.sh` with your public key embedded |
 | `scripts/bootstrap-on-frame.sh` | Frame | Fallback: install the key and enable `sshd` |

docs/steam-games.md

@@ -110,3 +110,11 @@ returns nothing without `cc`, so Frame Control takes the country from
 - Installing when there's more than one library folder, such as a microSD card.
 - Uninstalling. `steam://uninstall/<appid>` should open a confirmation in the
   headset.
+
+## Optional VR software
+
+The [VR utilities list](vr-utilities.md#optional-software) is separate from our
+controls and HUD. It checks software ownership as well as games; paid utilities
+are installable only when already in the loaded Frame account library. No
+purchase flow is added. Public reports, local results and ownership are shown
+separately, and untested tools remain untested.

docs/streaming.md

@@ -8,6 +8,7 @@ This covers three directions, plus input:
 - **PC VR from Linux**: [feasibility and options](linux-vr-streaming.md),
   including Valve's streaming and USB support. No Linux host tested yet.
 - **Input**: type and point in the Frame from the Mac or iPhone.
+- **Live view and Control**: watch a panel flat and tap on it to use it.
 
 The confidence labels are the same as in [ssh.md](ssh.md).
 
@@ -45,8 +46,10 @@ flat 2D desktop streaming into a window on the Frame's Linux desktop.
 | Immersed / Virtual Desktop | Vendor apps | Immersed has a Mac agent but no known Frame client. Virtual Desktop's developer said he'd "try" to port it ([NewsBreak](https://www.newsbreak.com/news/4892834783961-virtual-desktop-dev-says-he-ll-try-to-bring-the-app-to-steam-frame)). | Not available as of 2026-09-25. Check again later. |
 | WiVRn / ALVR | VR streaming from a Linux or Windows PC | Irrelevant for a Mac host (no SteamVR/OpenXR runtime on macOS) | N/A |
 
-For **VR video files** (180°/360° stereo), don't stream the Mac's screen. Play
-them on the Frame in DeoVR instead: see [vr-video.md](vr-video.md).
+For **local movies and stereo photos**, Frame Control's own OpenVR player
+runs on the Frame; see [vr-video.md](vr-video.md). It currently renders a flat
+stereo screen. VR180/360 projection is not implemented; the same page records
+DeoVR only as an optional, independently installed alternative.
 
 ### Pre-seeding the Remmina profile (no typing in the headset)
 
@@ -113,18 +116,149 @@ capture it.
 
 ## Input: type and point in the Frame from the Mac or iPhone
 
-**Verified 2026-09-27** on the headset: `steamos` is in the `input` group and
-`/dev/uinput` is `crw-rw-r-- root input`, so **our own code can create a
-virtual keyboard and mouse without sudo**. The Frame has no `python-evdev`,
-`ydotool`, `wtype` or KDE Connect; `kwin_wayland` and `plasmashell` run only
-while the desktop panel is open in the headset.
+**Built: Home → Keyboard and trackpad**, in every version of Frame Control
+(Mac, Windows, Linux, iPhone and iPad), with nothing to install on the device
+you're holding. On a phone the panel is a trackpad (drag to move, tap to click,
+two fingers to scroll, two-finger tap to right-click) plus a text field that
+types on the Frame. On a computer, clicking the pad passes your mouse and
+keyboard through to the Frame until you press Esc (⌘ is sent as Ctrl on a Mac).
 
-| Option | Mac | iPhone | Notes |
+It goes through **KDE Connect**, the first-party route (KDE makes the Frame's
+desktop): Frame Control's server runs [`ui/frame_input_agent.py`](../ui/frame_input_agent.py)
+on the Frame, which talks KDE Connect's own LAN protocol to the Frame's
+`kdeconnectd` as if it were a phone. KDE Connect does the typing and clicking.
+
+**Verified 2026-09-28** (SteamOS 0.4.1, build 20260925.6191901):
+
+- KDE Connect isn't installed on the Frame, so **Frame Control ships it**:
+  Valve's own build for the Frame (`kdeconnect` 24.02.2-1 from its `extra`
+  repository) plus the five libraries it links that the Frame lacks
+  (`kcontacts`, `kpeople`, `modemmanager-qt`, `pulseaudio-qt`, `libfakekey`),
+  pinned by SHA-256 in [`frame/kdeconnect/packages.json`](../frame/kdeconnect/packages.json).
+  The builds download them from the
+  [kdeconnect-frame-24.02.2-1 release](https://github.com/saphid/frame-control/releases/tag/kdeconnect-frame-24.02.2-1)
+  (`app/build/fetch-deps.js`, `frame/kdeconnect/fetch.py`). The address of
+  Valve's repository for the Frame isn't to be shared, and Valve's public
+  aarch64 preview repository has KDE Connect 25.08, built against newer KDE
+  libraries than the Frame has.
+- On first use, the computer copies them to the Frame over the SSH connection
+  it already has. The iPhone app's bundle, already copied to the Frame, has
+  them too. The agent checks each SHA-256 and unpacks them into
+  `~/.local/share/frame-control/kdeconnect` (3.6 MB copied, 18 MB unpacked,
+  about 2 s). There's no internet download on the Frame, no root, and nothing
+  on the read-only system, so SteamOS updates leave it alone. A stamp there
+  (`root/.frame-control-packages`) records which build it is; a newer Frame
+  Control replaces it.
+- `pacman -Sp kdeconnect …` also pulls in ModemManager, libqmi, libmbim,
+  libqrtr-glib and ppp (packaging dependencies). `kdeconnectd` and its plugins
+  don't link any of them (checked with `ldd` against the six packages alone),
+  so Frame Control leaves them out.
+- Licences: the packages are GPL and LGPL; Frame Control stays MIT because it
+  only starts `kdeconnectd` and speaks its protocol. The notice, licence texts
+  and complete source are in [`frame/kdeconnect`](../frame/kdeconnect/NOTICE.md),
+  [`THIRD_PARTY_NOTICES.md`](../THIRD_PARTY_NOTICES.md) and the app's
+  **About and licences** (Tools).
+- It pairs by itself: the agent asks to pair and accepts on KDE Connect's side
+  over D-Bus (`qdbus6 … acceptPairing`). It keeps its identity in
+  `…/kdeconnect/bridge`, so later connections are already paired. (A pair
+  request to a device that's already paired makes KDE Connect unpair it, so
+  the agent only asks when it isn't paired.)
+- Protocol version 7: whoever opens the TCP connection sends its identity line
+  in plain text, then acts as the **TLS server** (KDE Connect's
+  `lanlinkprovider.cpp`). Remote input is `kdeconnect.mousepad.request` with
+  `dx`/`dy`, `singleclick`, `rightclick`, `singlehold`/`singlerelease`,
+  `scroll`, `key` (any text) or `specialKey` (1 Backspace … 14 Escape,
+  21–32 F1–F12) and modifier flags.
+- **KDE Connect runs only while something uses the keyboard and trackpad.**
+  Each device gets its own KDE Connect identity (KDE Connect keeps one
+  connection per device, so a shared one would make a phone and a computer
+  knock each other off). The last one to disconnect stops KDE Connect, so it
+  isn't left running, or discoverable on your network, afterwards.
+- KDE Connect 24.02 **hangs or crashes when asked to unpair a device that's
+  offline** (seen twice: once spinning at 100% CPU with D-Bus unresponsive,
+  once exiting). Frame Control never unpairs. If its copy stops answering, the
+  agent restarts it once (tested by freezing it with `kill -STOP`).
+- Moves from the iPhone app (Simulator) and the Mac's server moved the Frame's
+  X pointer by exactly the amount sent, including with the bundled packages
+  copied over SSH (2026-09-28).
+- gamescope runs **two Xwayland displays**. `:0` holds Steam's VR bar and menus
+  and ignores injected pointer motion; `:1` holds apps such as Chromium and
+  takes it. KDE Connect runs on `:1`, so it reaches apps, not Steam's own menus.
+  There's also a `gamescope-0-ei` (libei) socket.
+- Typing through KDE Connect lands in a Chromium panel on `:1` (seen in the
+  panel's own capture, 2026-09-29). It **can't reach panels on `:0`** (Frame
+  Control's own panels, Steam's UI) and, since XTest positions are clamped to
+  `:1`'s 1280×720 root, can't reach beyond that in a bigger window. Control on
+  the live view (below) has neither limit.
+- **Not yet tested:** whether it reaches the KDE desktop panel (Plasma is its
+  own session).
+- **Known limit:** keys and clicks typed while the link is reconnecting wait
+  and are sent once it's back, but anything sent in the moment the Wi-Fi
+  drops, before SSH notices, can be lost. Confirming every event would add a
+  round trip to each pointer move.
+
+## Live view and Control: watch a panel and tap on it
+
+**Built: Home → Desktop / Headset view → Control.** The live view has two
+sources:
+
+- **Headset view**: what the lenses show (SteamVR's mirror, `/dev/video99`). It
+  moves with the wearer's head, so Control makes the view a trackpad: drag to
+  move the pointer, tap to click, press and hold to right-click, two fingers to
+  scroll. With a mouse, moving over the view moves the pointer.
+- **Desktop**: the app panel in use in the headset, from its own window, so it
+  stays still however the wearer looks around. Control makes taps and clicks
+  land exactly where you put them. Dragging is a mouse drag, press and hold is a
+  right-click, two fingers scroll, and on a computer the mouse, wheel and
+  keyboard work directly on it (⌘ is sent as Ctrl on a Mac). A picker shows any
+  other panel, view only.
+
+Below the view, a text field and key buttons type on the Frame from a phone.
+
+How (**verified 2026-09-29**, SteamOS 0.4.1, build 20260925.6191901):
+
+- **Input goes through gamescope's own injection.** gamescope serves an EIS
+  socket (`/run/user/1000/gamescope-0-ei`; Steam feeds Remote Play input through
+  it), and `libei` 1.4.1 is on the image. [`ui/frame_touch.py`](../ui/frame_touch.py)
+  talks to it with `ctypes`: nothing to install. gamescope offers one device,
+  "Gamescope Virtual Input", with relative and absolute pointer, buttons,
+  scroll and keyboard (Linux key codes; no text capability, so the text field
+  types printable ASCII on a US layout). Its absolute region is unbounded; the
+  pointer uses the focused panel's display coordinates, and gamescope fits each
+  window to its display, so a 1920×1080 window on the 1280×720 `:1` takes
+  positions at two thirds scale. Taps on a 1280×720 page landed on the exact
+  pixel.
+- **It reaches the panel that has focus** (`GAMESCOPE_FOCUSED_WINDOW` on `:0`'s
+  root), on either X display. In the OpenVR backend focus moves only on SteamVR
+  overlay events (the controller's laser entering or clicking a panel), or to a
+  new panel when none holds it (read from gamescope's `OpenVRBackend.cpp`, seen
+  with `gamescopectl focus_info`, which writes to the journal). Neither
+  `GAMESCOPECTRL_BASELAYER_WINDOW`/`_APPID` nor X focus moves it, and no
+  gamescope command does. So Control follows the wearer: whatever they last
+  used is what your taps reach. A window without a Steam app id (`STEAM_GAME`)
+  gets a connector of its own and doesn't hold focus.
+- **Keys in a burst can arrive out of order**, so the helper paces them (8 ms
+  apart).
+- **Known limit:** if focus moves to another panel in the middle of a drag, the
+  release goes to the panel that has focus then. Whether gamescope hands it to
+  the window that got the press isn't known yet. When the session ends, the
+  helper lets go of every button and key it still holds.
+- **The Desktop picture is the window's own pixels**: `ffmpeg -f x11grab
+  -window_id <window> -i :<display>` works on gamescope's redirected windows,
+  while grabbing the root gives black. It streams as H.264 like the headset view
+  (about 30 fps at 720p).
+- Tested from the iPhone app (Simulator): a tap on the Desktop view focused a
+  text box in the panel and the text field typed into it; a trackpad move went
+  exactly (+40, +25).
+
+Our own `uinput` keyboard and mouse would also work (`steamos` is in the
+`input` group and `/dev/uinput` is group-writable, verified 2026-09-27), and
+remains the fallback if the bundled KDE Connect ever stops working on a new SteamOS.
+
+| Other option | Mac | iPhone | Why not |
 |---|---|---|---|
-| **A uinput keyboard and mouse in Frame Control's server** | ✓ | ✓ | **Recommended.** The server opens `/dev/uinput` with `ctypes` (standard library only) and the page sends key and pointer events through the tunnel it already has. On the phone: a trackpad area (drag to move, tap to click, two fingers to scroll) and the iOS keyboard for typing. On the Mac: a "control the Frame" mode that captures the keyboard and pointer (Esc to release). Uinput devices look like real hardware to the kernel, so libinput, KWin and gamescope should take them; [frame-voice](https://github.com/DeeJanuz/frame-voice) already types into a Frame through a uinput keyboard. **Untested**: which surfaces in VR (desktop panel, SteamVR dashboard, games, Android apps in Lepton) accept the pointer. About a day or two of work |
-| **Bluetooth keyboard and mouse** | – | – | Real hardware paired in SteamOS settings. The iPhone can't pretend to be a Bluetooth keyboard: iOS won't advertise the HID service ([Apple forums](https://developer.apple.com/forums/thread/733916)) |
+| **Bluetooth keyboard and mouse** | – | – | Needs real hardware, paired in SteamOS settings. The iPhone can't pretend to be a Bluetooth keyboard: iOS won't advertise the HID service ([Apple forums](https://developer.apple.com/forums/thread/733916)) |
 | **Deskflow** (formerly Input Leap / Barrier) | ✓ | – | Moves the Mac's own mouse and keyboard onto the Frame's screen edge. Flathub has an aarch64 build ([Flathub](https://flathub.org/apps/org.deskflow.deskflow)); on Wayland it needs the InputCapture/libei portal, and only works while Plasma is running. No iPhone client |
-| **KDE Connect** | ~ | ✓ | Its iOS app has a remote touchpad and keyboard, but the Frame would need KDE Connect installed (not on Flathub; `pacman` on a read-only root). More moving parts than the uinput route |
 | **Remmina / Steam Link / RDP** | ✓ | – | Input only reaches the streamed session, not the headset's own apps |
 
 Other ways to get text in:

docs/testing.md

@@ -104,6 +104,20 @@ switch while SSH is down:
 
 ## Headset smoke test
 
+**Documented shared-device procedure:** before a test installs, launches or
+stops an application, acquire `ssh frame 'mkdir /tmp/frame-test.lock'`. If it
+fails, leave that lock alone and continue offline work. Only the thread that
+acquired it releases it with `ssh frame 'rmdir /tmp/frame-test.lock'`, after
+cleanup. Keep each device session to a few minutes.
+
+Check battery capacity and charging state under `/sys/class/power_supply`
+before and after; keep capacity above 20%. Stop only processes started by the
+test, remove temporary installs and profiles, and restore the prior dashboard
+state. Leave Steam and SteamVR running. Do not reboot or change global settings.
+Record the build, actual interaction results, cleanup and any unworn-headset
+limits alongside screenshots or logs. These are caller responsibilities; the
+smoke script below does not acquire this shared lock itself.
+
 ```sh
 scripts/frame-smoke.sh           # needs `ssh frame` to work without a password
 scripts/frame-smoke.sh --pair    # also pairs a throwaway key: approve it in the headset
@@ -149,6 +163,20 @@ refuses ids with a hyphen (`missing/invalid arguments`), which the fake had
 accepted. The fake now refuses them the same way, and Frame Control makes ids
 Steam accepts.
 
+## Owned media player
+
+`tests/test_media.py` covers layout evidence and overrides, OU eye ordering,
+hardware-decoder command construction, malformed splats, stereo parallax and
+fake-Frame library/process ownership. `tests/e2e/test_media_transfer.py` checks the real
+HTTP/SSH upload and library listing without pretending the fake renders VR.
+Real decode timings and captured stereo output are recorded in
+[vr-video.md](vr-video.md). Generated media only; no external player required.
+
+**Verified 2026-09-28**, real Frame BUILD_ID 20260925.6191901: `~/.local`
+and `~/.local/share` are `steamos:steamos`, mode 0755. The fake supervisor
+sets those parent owners too; previously its root-created Steam manifests
+left the parents root-owned and incorrectly prevented user runtime installs.
+
 ## Agent interfaces
 
 `tests/test_agent.py` exercises MCP stdio, exact-action human approvals and the
@@ -156,3 +184,29 @@ assistant against an in-process HTTP endpoint with canned responses (no keys or
 external calls). `tests/e2e/test_agents.py` runs the MCP/HTTP/SSH path against the
 fake Frame for approved installs, clipboard and file transfer. Headset Chromium
 rendering and real screenshots still need a device; see [agent evidence](agents.md#evidence-and-limits).
+
+## Family and comfort
+
+`tests/test_comfort.py` uses an injected clock, fake headset sensor readings and
+actions, plus a Node fake of Steam's Home API. It covers warnings before Home,
+late/suspended sessions, cancellation, failed actions, duplicate alerts, reboot
+invalidation, per-zone thermal trips and shared on-headset state. The server
+guards reject invalid session settings before SSH. See
+[real-device evidence and limits](family-comfort.md#verification).
+
+## Panel switcher
+
+`tests/test_panels.py` supplies fake-Frame `vrcmd --overlays` output, checks
+main-panel filtering (including hidden panels), revalidates closed panels before
+focus, and drives the headset helper's real loopback HTTP server to test access
+keys, Host/Origin guards, malformed requests, offline errors and Close. It runs
+in the normal unit suite without OpenVR or a headset. The fixture format comes
+from SteamVR 2.18.1, BUILD_ID `20260925.6191901`; it does not simulate rendering.
+
+On the Frame, run `python3 -` over SSH with `ui/frame_panels.py` on stdin to
+list panels. `--focus <key>` rechecks the list and requests focus. In Frame
+Control, **Tools → Panel switcher → Open in headset** exercises installation,
+Chromium rendering and the same helper through HTTP. Close the switcher after
+testing. [The recorded device checks](panels.md#frame-controls-panel-switcher)
+cover actual focus, HTTP guards and an OpenXR sample transition, and separately
+identify the unverified Steam-game, spatial layout, reboot and laser behaviors.

docs/vr-apks.md

@@ -0,0 +1,148 @@
+# VR APKs and Quest games in Lepton
+
+What it takes to run an immersive (OpenXR) Android app, including Meta Quest
+builds, on the Frame. Checked on SteamOS BUILD_ID 20260925.6191901, Lepton
+v2.8.14 (rootfs v2.8.11), SteamVR 2.18.1, on 2026-09-28, unless marked
+**inferred**.
+
+## How a VR APK reaches SteamVR (verified)
+
+- Lepton ships a standard Khronos system runtime manifest,
+  `/vendor/etc/openxr/1/active_runtime.json`, pointing at SteamVR's Android
+  client, `/data/steamvr/runtime/bin/androidarm64/vrclient.so`. That is the
+  host's `/opt/steamvr/bin/androidarm64/`, bind-mounted in.
+- An APK's own Khronos-style `libopenxr_loader.so` tries the runtime brokers
+  (`org.khronos.openxr.runtime_broker`, `…system_runtime_broker`), finds
+  neither, then falls back to that manifest. Nothing in the APK has to change
+  for discovery.
+- Install the APK without the flatscreen marker
+  (`python3 ui/frame_android.py install app.apk --vr`). The marker only
+  controls Lepton's 2D Android surface; the app itself has to start an
+  OpenXR session.
+- Lepton also loads Valve's `XR_APILAYER_VALVE_fdm_injection` layer from
+  `/vendor/etc/openxr/1/api_layers/implicit.d/`. Only layers in Valve's own
+  directories are picked up (`liblepton/vulkan_layers.sh`), so a third-party
+  layer has to ship inside the APK.
+
+**Open Brush 2.32.29, the Quest APK from its GitHub release (Unity OpenXR,
+Vulkan), works unmodified.** Its manifest already has `LAUNCHER` next to
+`com.oculus.intent.category.VR`. Unity asked for OpenXR 1.1, got
+`XR_ERROR_API_VERSION_UNSUPPORTED`, retried with 1.0 and succeeded. SteamVR
+took it as the scene app, created Touch, simple-controller and Frame-controller
+bindings, and the session reached `XR_SESSION_STATE_FOCUSED`. A headset capture
+(`ui/frame_vrshot.py`, after waking the compositor and closing the dashboard)
+showed a dark sky over a mountain horizon; nobody wore the headset to confirm
+it was Open Brush's scene or to try drawing.
+
+**Khronos `hello_xr` (Vulkan, 1.1.63 release APK) works unmodified:**
+`Instance RuntimeName=SteamVR/OpenXR RuntimeVersion=2.18.1`, 1728×1728
+swapchains per eye, session `IDLE → READY → SYNCHRONIZED` (the headset was
+not being worn, so it did not reach `FOCUSED`).
+
+## What SteamVR's Android runtime supports (verified, from `vrclient.so`)
+
+- **OpenXR 1.0 only.** An app requesting `XR_API_VERSION_1_0` works; one
+  requesting 1.1 (`XR_CURRENT_API_VERSION` in a 1.1 SDK) gets
+  `XR_ERROR_API_VERSION_UNSUPPORTED` from the runtime.
+- Extensions include `XR_KHR_opengl_es_enable`, `XR_KHR_vulkan_enable{,2}`,
+  `XR_KHR_composition_layer_depth`, `XR_KHR_locate_spaces`,
+  `XR_EXT_local_floor`, `XR_EXT_uuid`, `XR_EXT_palm_pose`,
+  `XR_EXT_hand_tracking`, `XR_EXT_eye_gaze_interaction`, and these Meta ones:
+  `XR_FB_display_refresh_rate`, `XR_FB_foveation{,_configuration,_vulkan}`,
+  `XR_FB_space_warp`, `XR_FB_swapchain_update_state`,
+  `XR_META_foveation_eye_tracked`, `XR_META_recommended_layer_resolution`,
+  `XR_META_vulkan_swapchain_create_info`, `XR_META_performance_metrics`.
+- Not present: `XR_FB_passthrough`, `XR_FB_hand_tracking_*`,
+  `XR_FB_spatial_entity*`, `XR_FB_color_space`,
+  `XR_KHR_android_thread_settings`, `XR_OCULUS_*`.
+- Interaction profiles include `oculus/touch_controller`, `khr/simple_controller`,
+  `valve/frame_controller` and the usual PC controllers. Valve documents Touch
+  bindings as a working fallback on the Frame controllers.
+
+## What stops a Quest APK (verified with Wolvic 1.9, `oculusvr` build)
+
+1. **Lepton won't start it.** Lepton's `apk-info-extractor` only accepts an
+   activity whose intent filter has `android.intent.action.MAIN` and
+   `android.intent.category.LAUNCHER`. Quest apps use
+   `com.oculus.intent.category.VR` instead, so Lepton logs `APP_ACTIVITY is
+   empty` and exits. There is no override. **Fix:** add the `LAUNCHER`
+   category to that intent filter and re-sign. After that, Wolvic started.
+2. **OpenXR 1.1.** Wolvic's Quest build then requested OpenXR 1.1 and aborted
+   on `XR_ERROR_API_VERSION_UNSUPPORTED`. Unity's OpenXR plugin retries with
+   1.0 (Open Brush, above), so this mostly bites native and non-Unity apps. **Fix (inferred):** an API layer
+   inside the APK that asks the runtime for 1.0 and maps the 1.1 core
+   functions to the extensions the runtime does have (`XR_KHR_locate_spaces`,
+   `XR_EXT_local_floor`, `XR_EXT_uuid`, `XR_EXT_palm_pose`).
+3. **Lepton's missing clipboard service** still applies to VR apps. The Godot
+   XR Tools demo's Quest build (itch.io) dies in `Godot.<init>` casting the
+   null clipboard service to `ClipboardManager`, before any OpenXR call. See
+   the clipboard table in [apks.md](apks.md).
+4. **Not yet reached:** required Meta-only extensions (each app differs),
+   swapchain formats (the Lynx Wolvic build needed `GL_SRGB8_ALPHA8`), and
+   Meta platform services.
+
+The loader was never the problem: Wolvic's Quest `libopenxr_loader.so` is a
+Khronos-style loader and found SteamVR through `/vendor`.
+
+## Out of scope
+
+- **Meta entitlement.** Apps that call the Oculus Platform SDK
+  (`libovrplatformloader.so`) to check the Quest store licence need Meta's
+  services. Frame Control won't work around that.
+- **VrApi-era apps** (`libvrapi.so`, before OpenXR) need an API translator,
+  not a patch.
+
+## Frame Control does this for you
+
+APK uploads and `python3 ui/frame_android.py install app.apk` detect VR
+manifest categories, Samsung's `vr_only` flag and the arm64 OpenXR loader.
+VR apps default to immersive mode without the flatscreen marker. The upload
+selector or CLI `--flat` / `--vr` overrides that choice. Compatibility notes
+identify legacy VrApi, Meta platform SDK and OpenXR libraries.
+
+Lepton only starts an `<activity>` whose MAIN intent filter has LAUNCHER; it
+ignores `<activity-alias>`, which is where Godot 4 exports put LAUNCHER. When no
+real activity qualifies, Frame Control adds LAUNCHER to the VR activity's MAIN
+filter, or to the activity the launcher alias targets, then repacks and v2-signs
+the APK locally before copying it; `meta.json` records
+`"patched": ["launcher"]`. Unchanged ZIP members retain their compressed
+bytes; stored libraries are aligned to 16 KiB. The RSA signing identity lives
+in Frame Control's per-user app-data directory as `apk-signing-key.json`
+(mode 0600). Keep this key to preserve the signer on subsequent patched
+updates. A re-signed APK cannot update an installation signed by its original
+publisher; Android also treats it as a different signer for signature checks.
+
+VR apps with an arm64 OpenXR loader also get the OpenXR compatibility layer
+([frame/openxr-compat](../frame/openxr-compat/README.md)): an implicit API
+layer in the APK's `assets/openxr/1/api_layers/implicit.d/`, which the app's
+own loader picks up next to Valve's layer. It asks SteamVR for OpenXR 1.0 when
+the app wants 1.1 and enables the extensions that became 1.1 core; maps
+`xrLocateSpaces` to `xrLocateSpacesKHR` and `grip_surface` to `palm_ext`; drops
+1.1 controller profiles SteamVR doesn't know; stubs
+`XR_KHR_android_thread_settings` and `XR_OCULUS_android_session_state_enable`;
+and keeps the current refresh rate when SteamVR refuses a requested one.
+`meta.json` records `"patched": ["openxr-compat"]`. Skip it with
+`install … --no-xr-compat`. Its decisions go to logcat under `FrameXrCompat`.
+
+Verified on the headset (2026-09-28):
+
+- **Wolvic 1.9, Quest build**, installed as downloaded: Frame Control added
+  `LAUNCHER` and the layer. The layer turned OpenXR 1.1.48 into 1.0.63, the
+  instance and session were created, and a 144 Hz refresh request that SteamVR
+  refused was kept at the current rate. The session reached `SYNCHRONIZED`;
+  then Wolvic's Gecko engine crashed (null SIGSEGV on its Gecko thread, the
+  same crash its Lynx build has), which is Wolvic's, not OpenXR's.
+- **Open Brush, Quest build**, with the layer: 1.1.54 → 1.0.63, the thread
+  settings stub in use, `bytedance/pico4_controller` bindings dropped, and the
+  session reached `FOCUSED`, the same as without the layer.
+
+Inspect or prepare an APK without contacting the headset:
+
+```sh
+python3 ui/frame_android.py info app.apk
+python3 ui/frame_android.py patch app.apk patched.apk
+python3 ui/frame_android.py patch app.apk patched.apk --add assets/openxr/1/api_layers/implicit.d/X.json=X.json --add lib/arm64-v8a/libX.so=libX.so
+```
+
+The patch fixes Lepton's launch-category requirement. It does not supply an
+OpenXR 1.1 translation layer, Meta services or a VrApi implementation.

docs/vr-utilities.md

@@ -0,0 +1,139 @@
+# VR comfort and performance
+
+Frame Control owns its HUD and telemetry. They use SteamVR/OpenVR, gamescope,
+Python and xterm already on the Frame, plus the Frame's sensors. No feature
+requires fpsVR, OVR Advanced Settings, XSOverlay or another third-party app.
+The software list is a separate, optional convenience.
+
+This is **part of [#25](https://github.com/saphid/frame-control/issues/25)**,
+not completion of the issue. Playspace controls remain blocked on the device
+checks below. The PR stays draft.
+
+## Our performance HUD
+
+On **Home → VR comfort and performance**, the app shows a timestamped sample
+with each status refresh (30 seconds, or Refresh). **Open HUD in headset**
+starts our text HUD as a gamescope panel, refreshed every two seconds. In the
+SteamVR dashboard, select **Frame Control HUD**, then Float in World or dock
+it to a controller. **Close HUD**, or closing its terminal, ends it. Opening
+it twice reuses the existing process.
+
+| Value | Meaning and source |
+|---|---|
+| Compositor FPS / period | Differences between two `IVRCompositor_029::GetFrameTiming` frame indices and monotonic compositor timestamps, sampled 200 ms apart. Output cadence, not game FPS or a long-term average. |
+| Application FPS | Reciprocal of OpenVR's client frame interval. Unavailable if there is no positive interval; not inferred from refresh rate. |
+| Render GPU time | OpenVR total render GPU milliseconds, not GPU utilisation. |
+| Compositor CPU | OpenVR compositor render CPU milliseconds, not game CPU time. |
+| System CPU | `/proc/stat` busy-time delta across the sample, with guest time counted once and iowait treated as idle. |
+| GPU clock | `3d00000.gpu/cur_freq`, converted from Hz to MHz; frequency is not load. |
+| Hottest sensor / battery | Existing thermal-zone and battery sysfs reads from `frame_status.py`. |
+
+OpenVR uses background application mode, which does not start SteamVR or keep
+it running. This mode also returned live timing in a read-only device probe.
+
+Missing sensors, a stopped or incompatible SteamVR runtime, and non-advancing
+frame indices display **Unavailable**, never invented zero FPS. Failed status
+refreshes clear the HUD card rather than keeping a stale live-looking sample.
+The HUD itself adds CPU/GPU work; it is a diagnostic, not a zero-overhead benchmark.
+
+**Verified 2026-09-28**, SteamOS 0.4.1, build `20260925.6191901`, SteamVR
+2.18.1: the exact OpenVR interface and 192-byte timing layout returned advancing
+frame indices and live GPU/CPU timing. Sensor reads, creation of overlay
+`valve.steam.desktopgame.2000250025`, duplicate-open handling, and closing the
+HUD passed. The temporary probe overlay disappeared after its process closed.
+[Sanitized device sample](evidence/vr-utilities/device.json).
+
+**Unverified:** visual placement while wearing the headset, controller docking,
+and overhead during gameplay. The companion card was checked in the attached
+preview using live Frame data. Creating an overlay does not establish that it
+was visible to the wearer.
+
+The optional HUD copies only `frame_status.py` and `frame_vr.py` into
+`~/.local/share/frame-control/vr/`. It tags only the window whose X11 PID matches
+its own xterm, avoiding other threads' windows. Stop checks both PID and Linux
+process start time before sending SIGTERM. It does not stop Steam or SteamVR,
+edit their settings, install a service, or need sudo.
+
+## Playspace, seated height and recenter: paused
+
+**Verified 2026-09-28:** SteamVR exposes `IVRChaperoneSetup_006` and
+`IVRChaperone_004`. An initial 1 cm seated zero-pose translation committed,
+read back and restored numerically. A later trial, while the shared Frame was
+in use, changed universe IDs after commits and returned transforms that did
+not match the requested write or restore. Journal entries reported
+`CommitWorkingCopy`, `VREvent_ChaperoneUniverseHasChanged` and
+`VREvent_ChaperoneRoomSetupCommitted`. The collision-bound arrays and play-area
+size matched in the saved before/after records, but the origin matrices did not.
+
+Alex confirmed the headset was in use and asked to pause control tests. No
+further playspace writes were made. The exploratory control implementation was
+removed from the shipping API; `recenter`, `adjust` and `restore` are rejected.
+This is an **unresolved feasibility check**, not evidence that OpenVR controls
+cannot work. Concurrent use and the Frame driver's coordinate-system handling
+still need to be separated.
+
+The probe's original and last-read poses remain in the Frame's
+`~/.local/share/frame-control/vr/comfort.json` for investigation. This draft
+neither reads nor applies that baseline. Do not blindly replay it into a room
+that may have changed. No recenter test was reached in the later trial.
+
+Before adding controls, on an idle Frame:
+
+1. Establish current room and tracking state, and inspect the retained probe
+   evidence before considering any restoration.
+2. Prove seated and standing height/move operations in the Frame driver's
+   current coordinates, including delayed readback, coordinate rebasing and
+   recovery. Show that the physical safety boundary stays correct.
+3. Verify recenter independently, and test a full apply/restore cycle plus a
+   concurrent room-change refusal. Add a fake OpenVR test for those contracts.
+4. Check the apparent result in a seated and a standing app before exposing UI.
+
+**Documented:** seated and standing are tracking origins selected by an app;
+changing a seated origin cannot force every game to support seated play.
+
+**Inferred from the installed SteamVR defaults:** there is no generic snap-turn
+or locomotion-vignette setting. `dashboard.verticalOffsetCm_2` and
+`steamvr.panelMaskVignette` affect panels, not the player's height or game
+locomotion. The app gives game-setting hints for snap-turn, teleport movement
+and movement vignette instead of writing these unrelated settings.
+
+## Optional software
+
+**Verified 2026-09-28 (same build):** a read-only query of Steam's loaded
+`appStore.allApps` found none of these five apps on the Frame account. The query
+includes software, which the existing games-only library filter excludes.
+Steam's public app-details API listed only Desktop+ as free. No software was
+purchased, installed or launched during these ownership checks.
+
+| Utility | Local Frame status | Public evidence / optional source |
+|---|---|---|
+| OVR Advanced Settings (1009850) | **Untested**, not owned | Steam edition is paid. Developer's [free source and releases](https://github.com/OpenVR-Advanced-Settings/OpenVR-AdvancedSettings). No verified Frame result in this work. |
+| XSOverlay (1173510) | **Untested**, not owned | Supplied research attributes Proton support with tweaks to [Road to VR](https://www.roadtovr.com/valve-steam-frame-review/). This is a public report, not our verification. |
+| OVR Toolkit (1068820) | **Untested**, not owned | Same [public Frame report](https://www.roadtovr.com/valve-steam-frame-review/); no local verification. |
+| fpsVR (908520) | **Untested**, not owned | [Steam listing](https://store.steampowered.com/app/908520/). No Frame-specific result established in the supplied research. General PC VR reviews do not verify Frame support. |
+| Desktop+ (1494460) | **Untested**, free | [Developer source](https://github.com/elvissteinjr/DesktopPlus). No verified Frame result in this work. |
+
+**Documented (supplied research):** the XSOverlay/OVR Toolkit claims are kept as
+attributed leads. **Verified source check 2026-09-28:** fetching the linked
+review returned HTTP 200 and the expected review title, but neither utility name
+appeared in the fetched HTML or extracted text. The claims could not be
+corroborated from that page; this is not proof of incompatibility. They do not make those apps dependencies or mark them
+locally verified. No paid utility is auto-acquired. A server-side check blocks
+installation through the Steam endpoint if the paid utility is absent from the
+loaded Frame library; an empty/unavailable library fails closed. Desktop+ uses
+the existing free Steam install flow, which may need a license confirmation in
+the headset. None is advertised as known-good without local evidence.
+
+Compatibility reports reuse the existing `compat-db` storage and validation
+with `package: "steam:<appid>"`, rather than colliding with Android package IDs.
+The optional list shows the latest `works`, `issues` or `broken` report with its
+date, build and notes, separately from public sources and ownership. With no
+report the status stays **untested**. No shared database schema change or
+production deployment is needed; no reports were published by this work.
+
+## Validation and review
+
+166 unit tests and 8 website tests passed locally. The new fake-Frame cases
+passed in GitHub CI (Docker was unavailable locally). Desktop and phone-width
+preview checks passed. The two independent review attempts did not produce a
+verdict; [commands, real exit statuses and limitations](evidence/vr-utilities/review.md).

docs/vr-video.md

@@ -1,81 +1,148 @@
-# Watching VR video (180°/360°) on the Frame
+# Movies, stereo photos and splats
 
-The confidence labels are the same as in [ssh.md](ssh.md). Everything here
-was checked on SteamOS 0.3.0, build 20260922.6101926.
+Frame Control has its own Frame-side OpenVR player. It uses SteamOS's ffmpeg
+and V4L2 hardware decoder, Python and SteamVR. **No separate player or viewer
+is required.** Chromium and immersive WebXR are not in this playback path.
 
-## The short version
+## Use it
 
-1. Install **DeoVR Video Player** from Steam (free, app 837380) and start it once
-   in the headset. That creates its Proton prefix.
-2. On the Mac: `scripts/push-vr-video.sh --launch ~/Movies/beach_180_LR.mp4`
-3. In the headset, open DeoVR's local file browser → **Videos → VR** and
-   pick the file.
+In **Tools → Media in the headset**, send a file, choose its layout and press
+**Play**. **Theatre** gives it a larger screen and an 85% black surround.
+**Stop** removes both. Refresh reads the library and the player's state.
+The screen follows your head; it isn't a saved world-space panel.
 
-## Why DeoVR
-
-The Frame's Chromium can't play VR video in 3D. It has no immersive WebXR
-([how-the-frame-works.md](how-the-frame-works.md)). DeoVR's Windows build
-runs under Proton ARM64 + FEX as a real SteamVR app. **Verified 2026-09-25:**
-it found the Steam Frame headset and controller over OpenVR, and decoded
-7680×3840 and 8192×4096 H.265 VR180 side-by-side streams through AVPro's
-hardware Media Foundation path, mapped onto a 180° dome or fisheye mesh.
-
-Known quirks (verified):
-
-- The first launch takes about 45 s while it compiles shaders.
-- Grid thumbnails stay blank. Unity's own video player, which DeoVR uses for
-  previews, fails with `0xc00d36bb` under Proton. Full playback uses AVPro
-  and isn't affected.
-- The in-app store and web content are separate from local files. You don't
-  need an account to play your own files.
-
-## Getting files onto the headset
-
-`scripts/push-vr-video.sh` copies files with `rsync --partial`, so an
-interrupted upload resumes. They go to `~/Videos/VR` on the Frame (`/home`
-has about 860 GB free). The script also links that folder into DeoVR's prefix
-as `C:\users\steamuser\Videos\VR`. It's reachable at
-`Z:\home\steamos\Videos\VR` as well. **Verified** that the upload and link
-work. **Not yet checked** whether DeoVR's file browser lands there
-(open question 21).
-
-Speed: a test upload over Wi-Fi ran at about 3–5 MB/s (verified 2026-09-25,
-one sample). At that rate an 8K file of several GB takes tens of minutes, so
-start big uploads before you put the headset on.
-
-## Naming files so they play correctly
-
-DeoVR guesses the projection from the file name. Its binary contains the tags
-`_180`, `_360`, `_fisheye`, `_fisheye190`, `_mkx200`, `_vrca220` and `_rf52`
-(verified). For stereo layout, the common DeoVR convention is `_LR`/`_SBS`
-(side by side) and `_TB` (top/bottom) (inferred). If a video looks wrong
-(doubled, warped, or flat), change the projection and stereo mode in DeoVR's
-player menu.
-
-Examples: `trip_180_LR.mp4`, `concert_360_TB.mp4`, `hike_fisheye190_LR.mp4`.
-
-Codecs: H.265 at 8K played (verified, streamed). Local H.264 and H.265
-files haven't been played yet. The test clips below cover that.
-
-## Test clips
-
-The script doesn't include these. To check a setup, make two 20 s clips:
-3840×1920, 180° side by side, with the left eye tinted red and the right eye
-cyan. In the headset each eye should see only its own colour. A single mixed
-colour means the stereo split is wrong.
+The command-line route uses the same player:
 
 ```sh
-ffmpeg -f lavfi -i testsrc2=size=1920x1920:rate=30:duration=20 \
-  -filter_complex "[0:v]split[a][b];[a]colorchannelmixer=rr=1:gg=0.3:bb=0.3[l];[b]colorchannelmixer=rr=0.3:gg=1:bb=1[r];[l][r]hstack" \
-  -c:v libx264 -pix_fmt yuv420p -b:v 20M frame-test_180_LR_h264.mp4
-scripts/push-vr-video.sh frame-test_180_LR_h264.mp4
+scripts/push-vr-video.sh --launch --theatre ~/Movies/film_SBS.mp4
+scripts/push-vr-video.sh --launch --layout ou ~/Pictures/stereo.png
+scripts/push-vr-video.sh --launch capture.splat
+scripts/push-vr-video.sh --list
+scripts/push-vr-video.sh --stop
 ```
 
-## Streaming from the Mac instead of copying (untested)
+Uploads live in `~/Videos/FrameControl/<id>/` on the Frame. Each upload gets
+its own directory, so sending another file with the same name doesn't replace
+it. The UI's existing upload limit is 8 GiB. Transfers use the app's rsync/scp
+path; resumable large uploads are not implemented here yet. Existing
+`~/Videos/VR` files and Proton prefixes are left alone. The script no longer
+launches DeoVR, links a Proton prefix, or accepts directories.
 
-DeoVR has a DLNA browser (the binary contains `Searching for DLNA
-devices...` and a UPnP ContentDirectory client). A DLNA server on the Mac
-should therefore appear in DeoVR without copying anything, for example
-`brew install rclone` then `rclone serve dlna ~/Movies/VR`. This is **inferred**, not
-tried. 8K VR video needs roughly 50–100 Mbit/s sustained, and the Wi-Fi
-sample above (about 30–40 Mbit/s) suggests copying first is the safer default.
+| Media | Supported preview |
+|---|---|
+| Movies | H.264 / H.265, mono or left-first SBS / top-first OU; audio through the Frame's PulseAudio-compatible server |
+| Stereo photos | PNG / JPEG containing both eyes, SBS or OU |
+| Gaussian splats | Common 32-byte `.splat` records, 1–20,000 Gaussians; a stationary stereo preview |
+
+Auto layout reads delimited filename tags: `_SBS`, `_HSBS`, `_LR`, `_OU`,
+`_TB`, `_HOU`, `_HTB`, `_FSBS`, `_FOU`, `_FTB`. SBS/OU without `F` means
+half-resolution packing. Full packing preserves each eye's original aspect.
+It also accepts FFmpeg's `stereo_mode` metadata (`left_right`, `top_bottom`,
+`mono`); left/right and top/bottom metadata are treated as full packing.
+Choose an explicit layout if that assumption doesn't match the file.
+Unknown or conflicting tags ask for a choice, rather than silently flattening
+stereo. The explicit selector always wins. Layout is not guessed from resolution.
+
+## What was verified
+
+**Verified remotely, 2026-09-28:** SteamOS 0.4.1, BUILD_ID
+`20260925.6191901`, SteamVR 2.18.1. Nobody wore the headset for these checks.
+All test media were generated by us. No paid content or DRM was involved.
+
+- Stock `ffmpeg` `h264_v4l2m2m` decoded 150 frames of our 1920×1080 H.264
+  test in 0.128 s (decode only); converting all frames to RGBA took 0.242 s.
+- Our ffmpeg → Python → OpenVR path submitted all 150 frames and exited 0.
+  The 1280×720 prototype took 4.775 s; the full 1920×1080 player took
+  4.618 s. These are wall times, not in-headset frame-rate measurements.
+  Finishing a 5 s clip early showed those probes weren't paced, so the final
+  player paces output at 30 fps: all 150 frames then completed in **5.025 s**.
+- The H.265 hardware decoder also completed the generated 1080p clip
+  (60 frames, exit 0); this is a short compatibility check, not a 4K/8K benchmark.
+- Our actual player, launched through Frame Control's media API, displayed
+  SBS and OU photos with red only in the left-eye capture and cyan only in
+  the right. OpenVR's `SideBySide_Parallel` flag separates the eyes; we
+  rearrange OU rows ourselves.
+- A generated 48-Gaussian `.splat` rendered in our own CPU renderer and appeared
+  in both eyes with separate perspective projections.
+- Theatre's owned dark surround and screen appeared in captures. Steam's
+  dashboard remained available over them. Stop removed the owned overlays
+  and ended the dedicated user service. No global SteamVR setting was changed.
+- A generated H.264/AAC clip reached the Pulse audio output and completed
+  all 100 video frames with exit 0. This proves the output path, not audible
+  quality or lip sync.
+
+![Frame Control SBS eye-isolation proof: red left, cyan right](img/media-sbs-proof.png)
+
+![Our Gaussian-splat stereo preview on the Frame](img/media-splat-proof.png)
+
+**Verified failed route:** GStreamer 1.24.2's `playbin` selected
+`v4l2h264dec`, delivered the first RGBA sample and then segfaulted (exit 139)
+in the basic appsink probe and the OpenVR probe. We do not ship that route.
+The ffmpeg path above completed instead.
+
+## Limits and blockers
+
+- **Not verified:** worn-headset comfort, sound quality/lip sync, long movies,
+  4K/8K decode, HDR, controller interaction or behaviour on other OS builds.
+  Output is bounded to 1920×1080 packed pixels before OU rearrangement.
+- **Not implemented:** pause, seeking, subtitles, playlists, right-eye-first
+  layouts, non-square pixel correction, VR180/360 projection and fisheye.
+  This preview is a flat stereo screen, not a dome player.
+- **Native spatial-photo blocker:** HEIC/HEIF/AVIF/MPO stereo-container
+  extraction isn't implemented in our viewer. We reject these rather than
+  displaying one image and calling it spatial. Export both eyes to PNG/JPEG
+  first. This is a current implementation gap, not a claim that the Frame
+  cannot support these containers.
+- **Large/immersive splat blocker:** the owned CPU rasterizer projects 3D
+  covariance into each eye and alpha-composites Gaussians, but renders a
+  fixed view at 320×240 per eye. It caps each Gaussian footprint at 32 pixels
+  and normalizes the scene to a two-metre box. Large scenes, PLY/SPZ, live
+  head-position parallax and navigation need a GPU scene renderer; this
+  version rejects files above 20,000 records. It is a stereo preview, not
+  an immersive walk-through.
+- A single player can run at a time. It stops at EOF, on **Stop**, or after
+  four hours in any case, so longer movies are cut off. Still images remain
+  until Stop or that timeout. There is no delete action yet: remove old
+  uploads from `~/Videos/FrameControl/` over SSH. The log is
+  `~/.local/share/frame-control/media/player.log` on the Frame.
+- **Panel/stream theatre remains outside this media slice:** SteamVR's
+  `vrcmd --dock-overlay` accepts `theater`, but docking an existing panel
+  and its dimming behaviour were not verified here. The shared headset had
+  workspace and stream tests active. We did not reposition their panels.
+  Integration with [#22](https://github.com/saphid/frame-control/issues/22)
+  and [#31](https://github.com/saphid/frame-control/issues/31) can use the
+  owned rendering hook below; no second stream/window manager is introduced.
+
+## Integration hook
+
+`POST /api/upload` with `X-Mode: media` and `X-Filename` sends a file and
+returns its `id`. `POST /api/media` accepts:
+
+```json
+{"action":"play","id":"<32 hex characters>/film_SBS.mp4","layout":"auto","theatre":true}
+```
+
+Other actions are `list`, `status`, `stop`. These use the normal `X-Frame-UI`
+guard. Play reports **starting**, not a claim that frames reached the headset;
+read status for `playing`, `ended`, `stopped` or `error`.
+The own-code files are copied to `~/.local/share/frame-control/media/` and
+run in the `frame-control-media.service` systemd user unit. Stop affects only
+that unit, including its decoder child.
+
+For a Frame-side stream producer, `frame_media_player.Overlay` exposes
+`create(key, width, distance, stereo=False, aspect=1, order=1)`,
+`pixels(handle, rgba, width, height)` and `close()`. Use an owned unique key,
+pass interleaved RGBA bytes (left/right halves for stereo) and always close in
+`finally`. `create` uses a head-relative transform; it does not move another
+app's panel. The player demonstrates a separate black surround overlay.
+`frame_media.stereo_pixels` converts OU to SBS. This is the narrow rendering
+hook for stream/workspace work; it doesn't capture or manage a Mac/PC stream.
+
+## Optional separate app
+
+You can independently install **DeoVR Video Player** (free Steam app 837380)
+if you prefer its VR180/360 features. Earlier tests on SteamOS 0.3.0,
+build `20260922.6101926` (2026-09-25), verified its OpenVR initialization and
+8K H.265 streamed VR180 decoding under Proton. Frame Control's media features
+neither install nor launch it, and do not depend on it. Its behaviour and
+file-naming conventions are not evidence about our player.

frame/kdeconnect/LICENSES/kcontacts/BSD-3-Clause.txt

@@ -0,0 +1,26 @@
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frame/kdeconnect/LICENSES/kcontacts/CC0-1.0.txt

@@ -0,0 +1,121 @@
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frame/kdeconnect/LICENSES/kcontacts/LGPL-2.0-or-later.txt

@@ -0,0 +1,446 @@
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frame/kdeconnect/LICENSES/kcontacts/MIT.txt

@@ -0,0 +1,19 @@
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frame/kdeconnect/LICENSES/kcontacts/Unicode-DFS-2016.txt

@@ -0,0 +1,49 @@
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frame/kdeconnect/LICENSES/kdeconnect/Apache-2.0.txt

@@ -0,0 +1,208 @@
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+and hold each Contributor harmless for any liability incurred by, or claims
+asserted against, such Contributor by reason of your accepting any such warranty
+or additional liability. END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own identifying
+information. (Don't include the brackets!) The text should be enclosed in
+the appropriate comment syntax for the file format. We also recommend that
+a file or class name and description of purpose be included on the same "printed
+page" as the copyright notice for easier identification within third-party
+archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+
+you may not use this file except in compliance with the License.
+
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+
+distributed under the License is distributed on an "AS IS" BASIS,
+
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+See the License for the specific language governing permissions and
+
+limitations under the License.

frame/kdeconnect/LICENSES/kdeconnect/BSD-3-Clause.txt

@@ -0,0 +1,26 @@
+Copyright (c) <year> <owner>. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+may be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

frame/kdeconnect/LICENSES/kdeconnect/CC0-1.0.txt

@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
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+vii. other similar, equivalent or corresponding rights throughout the
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+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
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+
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+
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+
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+    this CC0 or use of the Work.

frame/kdeconnect/LICENSES/kdeconnect/GPL-2.0-only.txt

@@ -0,0 +1,319 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 2, June 1991
+
+Copyright (C) 1989, 1991 Free Software Foundation, Inc. 
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public License is intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users. This General Public License applies to
+most of the Free Software Foundation's software and to any other program whose
+authors commit to using it. (Some other Free Software Foundation software
+is covered by the GNU Lesser General Public License instead.) You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish), that you receive source code or can get it if you want it, that you
+can change the software or use pieces of it in new free programs; and that
+you know you can do these things.
+
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the software, or if you modify it.
+
+For example, if you distribute copies of such a program, whether gratis or
+for a fee, you must give the recipients all the rights that you have. You
+must make sure that they, too, receive or can get the source code. And you
+must show them these terms so they know their rights.
+
+We protect your rights with two steps: (1) copyright the software, and (2)
+offer you this license which gives you legal permission to copy, distribute
+and/or modify the software.
+
+Also, for each author's protection and ours, we want to make certain that
+everyone understands that there is no warranty for this free software. If
+the software is modified by someone else and passed on, we want its recipients
+to know that what they have is not the original, so that any problems introduced
+by others will not reflect on the original authors' reputations.
+
+Finally, any free program is threatened constantly by software patents. We
+wish to avoid the danger that redistributors of a free program will individually
+obtain patent licenses, in effect making the program proprietary. To prevent
+this, we have made it clear that any patent must be licensed for everyone's
+free use or not licensed at all.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License applies to any program or other work which contains a notice
+placed by the copyright holder saying it may be distributed under the terms
+of this General Public License. The "Program", below, refers to any such program
+or work, and a "work based on the Program" means either the Program or any
+derivative work under copyright law: that is to say, a work containing the
+Program or a portion of it, either verbatim or with modifications and/or translated
+into another language. (Hereinafter, translation is included without limitation
+in the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running the Program
+is not restricted, and the output from the Program is covered only if its
+contents constitute a work based on the Program (independent of having been
+made by running the Program). Whether that is true depends on what the Program
+does.
+
+1. You may copy and distribute verbatim copies of the Program's source code
+as you receive it, in any medium, provided that you conspicuously and appropriately
+publish on each copy an appropriate copyright notice and disclaimer of warranty;
+keep intact all the notices that refer to this License and to the absence
+of any warranty; and give any other recipients of the Program a copy of this
+License along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Program or any portion of it,
+thus forming a work based on the Program, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+a) You must cause the modified files to carry prominent notices stating that
+you changed the files and the date of any change.
+
+b) You must cause any work that you distribute or publish, that in whole or
+in part contains or is derived from the Program or any part thereof, to be
+licensed as a whole at no charge to all third parties under the terms of this
+License.
+
+c) If the modified program normally reads commands interactively when run,
+you must cause it, when started running for such interactive use in the most
+ordinary way, to print or display an announcement including an appropriate
+copyright notice and a notice that there is no warranty (or else, saying that
+you provide a warranty) and that users may redistribute the program under
+these conditions, and telling the user how to view a copy of this License.
+(Exception: if the Program itself is interactive but does not normally print
+such an announcement, your work based on the Program is not required to print
+an announcement.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Program, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Program, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Program.
+
+In addition, mere aggregation of another work not based on the Program with
+the Program (or with a work based on the Program) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may copy and distribute the Program (or a work based on it, under Section
+2) in object code or executable form under the terms of Sections 1 and 2 above
+provided that you also do one of the following:
+
+a) Accompany it with the complete corresponding machine-readable source code,
+which must be distributed under the terms of Sections 1 and 2 above on a medium
+customarily used for software interchange; or,
+
+b) Accompany it with a written offer, valid for at least three years, to give
+any third party, for a charge no more than your cost of physically performing
+source distribution, a complete machine-readable copy of the corresponding
+source code, to be distributed under the terms of Sections 1 and 2 above on
+a medium customarily used for software interchange; or,
+
+c) Accompany it with the information you received as to the offer to distribute
+corresponding source code. (This alternative is allowed only for noncommercial
+distribution and only if you received the program in object code or executable
+form with such an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for making
+modifications to it. For an executable work, complete source code means all
+the source code for all modules it contains, plus any associated interface
+definition files, plus the scripts used to control compilation and installation
+of the executable. However, as a special exception, the source code distributed
+need not include anything that is normally distributed (in either source or
+binary form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component itself
+accompanies the executable.
+
+If distribution of executable or object code is made by offering access to
+copy from a designated place, then offering equivalent access to copy the
+source code from the same place counts as distribution of the source code,
+even though third parties are not compelled to copy the source along with
+the object code.
+
+4. You may not copy, modify, sublicense, or distribute the Program except
+as expressly provided under this License. Any attempt otherwise to copy, modify,
+sublicense or distribute the Program is void, and will automatically terminate
+your rights under this License. However, parties who have received copies,
+or rights, from you under this License will not have their licenses terminated
+so long as such parties remain in full compliance.
+
+5. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Program or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Program
+(or any work based on the Program), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+6. Each time you redistribute the Program (or any work based on the Program),
+the recipient automatically receives a license from the original licensor
+to copy, distribute or modify the Program subject to these terms and conditions.
+You may not impose any further restrictions on the recipients' exercise of
+the rights granted herein. You are not responsible for enforcing compliance
+by third parties to this License.
+
+7. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Program at all. For example, if a
+patent license would not permit royalty-free redistribution of the Program
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply and
+the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system, which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+8. If the distribution and/or use of the Program is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Program under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+9. The Free Software Foundation may publish revised and/or new versions of
+the General Public License from time to time. Such new versions will be similar
+in spirit to the present version, but may differ in detail to address new
+problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of this License, you may choose
+any version ever published by the Free Software Foundation.
+
+10. If you wish to incorporate parts of the Program into other free programs
+whose distribution conditions are different, write to the author to ask for
+permission. For software which is copyrighted by the Free Software Foundation,
+write to the Free Software Foundation; we sometimes make exceptions for this.
+Our decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing and reuse
+of software generally.
+
+   NO WARRANTY
+
+11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible
+use to the public, the best way to achieve this is to make it free software
+which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
+them to the start of each source file to most effectively convey the exclusion
+of warranty; and each file should have at least the "copyright" line and a
+pointer to where the full notice is found.
+
+<one line to give the program's name and an idea of what it does.>
+
+Copyright (C)< yyyy> <name of author>
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
+Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this when
+it starts in an interactive mode:
+
+Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
+with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software,
+and you are welcome to redistribute it under certain conditions; type `show
+c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may be
+called something other than `show w' and `show c'; they could even be mouse-clicks
+or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the program, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision'
+(which makes passes at compilers) written by James Hacker.
+
+<signature of Ty Coon >, 1 April 1989 Ty Coon, President of Vice This General
+Public License does not permit incorporating your program into proprietary
+programs. If your program is a subroutine library, you may consider it more
+useful to permit linking proprietary applications with the library. If this
+is what you want to do, use the GNU Lesser General Public License instead
+of this License.

frame/kdeconnect/LICENSES/kdeconnect/GPL-2.0-or-later.txt

@@ -0,0 +1,319 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 2, June 1991
+
+Copyright (C) 1989, 1991 Free Software Foundation, Inc. 
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public License is intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users. This General Public License applies to
+most of the Free Software Foundation's software and to any other program whose
+authors commit to using it. (Some other Free Software Foundation software
+is covered by the GNU Lesser General Public License instead.) You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish), that you receive source code or can get it if you want it, that you
+can change the software or use pieces of it in new free programs; and that
+you know you can do these things.
+
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the software, or if you modify it.
+
+For example, if you distribute copies of such a program, whether gratis or
+for a fee, you must give the recipients all the rights that you have. You
+must make sure that they, too, receive or can get the source code. And you
+must show them these terms so they know their rights.
+
+We protect your rights with two steps: (1) copyright the software, and (2)
+offer you this license which gives you legal permission to copy, distribute
+and/or modify the software.
+
+Also, for each author's protection and ours, we want to make certain that
+everyone understands that there is no warranty for this free software. If
+the software is modified by someone else and passed on, we want its recipients
+to know that what they have is not the original, so that any problems introduced
+by others will not reflect on the original authors' reputations.
+
+Finally, any free program is threatened constantly by software patents. We
+wish to avoid the danger that redistributors of a free program will individually
+obtain patent licenses, in effect making the program proprietary. To prevent
+this, we have made it clear that any patent must be licensed for everyone's
+free use or not licensed at all.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License applies to any program or other work which contains a notice
+placed by the copyright holder saying it may be distributed under the terms
+of this General Public License. The "Program", below, refers to any such program
+or work, and a "work based on the Program" means either the Program or any
+derivative work under copyright law: that is to say, a work containing the
+Program or a portion of it, either verbatim or with modifications and/or translated
+into another language. (Hereinafter, translation is included without limitation
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+Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
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+
+The hypothetical commands `show w' and `show c' should show the appropriate
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+or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your school,
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+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision'
+(which makes passes at compilers) written by James Hacker.
+
+<signature of Ty Coon>, 1 April 1989 Ty Coon, President of Vice This General
+Public License does not permit incorporating your program into proprietary
+programs. If your program is a subroutine library, you may consider it more
+useful to permit linking proprietary applications with the library. If this
+is what you want to do, use the GNU Lesser General Public License instead
+of this License.

frame/kdeconnect/LICENSES/kdeconnect/GPL-3.0-only.txt

@@ -0,0 +1,625 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
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frame/kdeconnect/LICENSES/kdeconnect/GPL-3.0-or-later.txt

@@ -0,0 +1,232 @@
+GNU GENERAL PUBLIC LICENSE
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
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frame/kdeconnect/LICENSES/kdeconnect/LGPL-2.1-only.txt

@@ -0,0 +1,467 @@
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+That's all there is to it!

frame/kdeconnect/LICENSES/kdeconnect/LGPL-3.0-only.txt

@@ -0,0 +1,163 @@
+GNU LESSER GENERAL PUBLIC LICENSE
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frame/kdeconnect/LICENSES/kdeconnect/LicenseRef-KDE-Accepted-GPL.txt

@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as
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frame/kdeconnect/LICENSES/kdeconnect/LicenseRef-KDE-Accepted-LGPL.txt

@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
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frame/kdeconnect/LICENSES/kdeconnect/MIT.txt

@@ -0,0 +1,9 @@
+MIT License
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frame/kdeconnect/LICENSES/kpeople/BSD-3-Clause.txt

@@ -0,0 +1,11 @@
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frame/kdeconnect/LICENSES/kpeople/CC0-1.0.txt

@@ -0,0 +1,121 @@
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frame/kdeconnect/LICENSES/kpeople/LGPL-2.1-or-later.txt

@@ -0,0 +1,468 @@
+GNU LESSER GENERAL PUBLIC LICENSE
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frame/kdeconnect/LICENSES/libfakekey/COPYRIGHT.txt

@@ -0,0 +1,24 @@
+libFakeKey
+
+A simple library for converting utf8 chars into 'fake' keypresses.
+
+Uses ideas from Fontconfig, libvirtkeys.c, keysym2ucs.c and dasher. 
+
+Authored By Matthew Allum  <amllum@openedhand.com>
+
+Copyright (C) 2004 OpenedHand
+
+This library is free software; you can redistribute it and/or
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+
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+
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+Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.

frame/kdeconnect/LICENSES/libfakekey/LGPL-2.0-or-later.txt

@@ -0,0 +1,446 @@
+GNU LIBRARY GENERAL PUBLIC LICENSE
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frame/kdeconnect/LICENSES/modemmanager-qt/BSD-3-Clause.txt

@@ -0,0 +1,26 @@
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frame/kdeconnect/LICENSES/modemmanager-qt/CC0-1.0.txt

@@ -0,0 +1,121 @@
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frame/kdeconnect/LICENSES/modemmanager-qt/GPL-2.0-only.txt

@@ -0,0 +1,319 @@
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+Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
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+
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+(which makes passes at compilers) written by James Hacker.
+
+<signature of Ty Coon >, 1 April 1989 Ty Coon, President of Vice This General
+Public License does not permit incorporating your program into proprietary
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+useful to permit linking proprietary applications with the library. If this
+is what you want to do, use the GNU Lesser General Public License instead
+of this License.

frame/kdeconnect/LICENSES/modemmanager-qt/GPL-3.0-only.txt

@@ -0,0 +1,625 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
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frame/kdeconnect/LICENSES/modemmanager-qt/LGPL-2.1-only.txt

@@ -0,0 +1,467 @@
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frame/kdeconnect/LICENSES/modemmanager-qt/LGPL-3.0-only.txt

@@ -0,0 +1,163 @@
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frame/kdeconnect/LICENSES/modemmanager-qt/LicenseRef-KDE-Accepted-GPL.txt

@@ -0,0 +1,12 @@
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frame/kdeconnect/LICENSES/modemmanager-qt/LicenseRef-KDE-Accepted-LGPL.txt

@@ -0,0 +1,12 @@
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frame/kdeconnect/LICENSES/pulseaudio-qt/LGPL-2.1-only.txt

@@ -0,0 +1,467 @@
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+
+That's all there is to it!

frame/kdeconnect/LICENSES/pulseaudio-qt/LGPL-3.0-only.txt

@@ -0,0 +1,163 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+This version of the GNU Lesser General Public License incorporates the terms
+and conditions of version 3 of the GNU General Public License, supplemented
+by the additional permissions listed below.
+
+   0. Additional Definitions.
+
+      
+
+As used herein, "this License" refers to version 3 of the GNU Lesser General
+Public License, and the "GNU GPL" refers to version 3 of the GNU General Public
+License.
+
+      
+
+"The Library" refers to a covered work governed by this License, other than
+an Application or a Combined Work as defined below.
+
+      
+
+An "Application" is any work that makes use of an interface provided by the
+Library, but which is not otherwise based on the Library. Defining a subclass
+of a class defined by the Library is deemed a mode of using an interface provided
+by the Library.
+
+      
+
+A "Combined Work" is a work produced by combining or linking an Application
+with the Library. The particular version of the Library with which the Combined
+Work was made is also called the "Linked Version".
+
+      
+
+The "Minimal Corresponding Source" for a Combined Work means the Corresponding
+Source for the Combined Work, excluding any source code for portions of the
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+and not on the Linked Version.
+
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+
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+code and/or source code for the Application, including any data and utility
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+
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+
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+a) under this License, provided that you make a good faith effort to ensure
+that, in the event an Application does not supply the function or data, the
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+
+b) under the GNU GPL, with none of the additional permissions of this License
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+
+   3. Object Code Incorporating Material from Library Header Files.
+
+The object code form of an Application may incorporate material from a header
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+
+0) Convey the Minimal Corresponding Source under the terms of this License,
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+
+   5. Combined Libraries.
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+
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+Library, uncombined with any other library facilities, conveyed under the
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+
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+based on the Library, and explaining where to find the accompanying uncombined
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+
+   6. Revised Versions of the GNU Lesser General Public License.
+
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+GNU Lesser General Public License from time to time. Such new versions will
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+
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frame/kdeconnect/LICENSES/pulseaudio-qt/LicenseRef-KDE-Accepted-LGPL.txt

@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3 of the license or (at your option) any later version
+that is accepted by the membership of KDE e.V. (or its successor
+approved by the membership of KDE e.V.), which shall act as a
+proxy as defined in Section 6 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.

frame/kdeconnect/NOTICE.md

@@ -0,0 +1,47 @@
+# KDE Connect for the Steam Frame
+
+Frame Control's keyboard and trackpad work through KDE Connect running on the
+Frame. The Frame doesn't come with it, so Frame Control ships it: the six
+packages below, unchanged, exactly as Valve builds them for the Frame's
+SteamOS (aarch64, packaged by "GitLab CI Package Builder
+<ci-package-builder-1@steamos.cloud>"). On first use, Frame Control copies them
+to the Frame over SSH and unpacks them into
+`~/.local/share/frame-control/kdeconnect`.
+
+They are separate programs and libraries under their own licences, listed
+below; their licence texts are in `LICENSES/<package>/`. Frame Control itself
+is MIT-licensed. It doesn't link to or include any of this code: it starts
+`kdeconnectd` and talks to it over KDE Connect's network protocol, as a phone
+would.
+
+| Package | Version (Valve's build) | Licence | Complete source (Valve's source package) | Upstream |
+|---|---|---|---|---|
+| kdeconnect 24.02.2-1 | 24.02.2-1 | GPL-2.0-only or GPL-3.0-only or any later version accepted by KDE e.V. (LicenseRef-KDE-Accepted-GPL); some files LGPL-2.1/3.0, MIT, BSD-3-Clause, Apache-2.0, CC0-1.0 | [kdeconnect-24.02.2-1.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kdeconnect-24.02.2-1.src.tar.gz) | [KDE](https://download.kde.org/stable/release-service/24.02.2/src/kdeconnect-kde-24.02.2.tar.xz) |
+| kcontacts 6.1.0-1 | 1:6.1.0-1 | LGPL-2.0-or-later; some files MIT, BSD-3-Clause, CC0-1.0, Unicode-DFS-2016 | [kcontacts-6.1.0-1.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kcontacts-6.1.0-1.src.tar.gz) | [KDE](https://download.kde.org/stable/frameworks/6.1/kcontacts-6.1.0.tar.xz) |
+| kpeople 6.1.0-1 | 6.1.0-1 | LGPL-2.1-or-later; some files BSD-3-Clause, CC0-1.0 | [kpeople-6.1.0-1.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kpeople-6.1.0-1.src.tar.gz) | [KDE](https://download.kde.org/stable/frameworks/6.1/kpeople-6.1.0.tar.xz) |
+| modemmanager-qt 6.1.0-1 | 6.1.0-1 | LGPL-2.1-only or LGPL-3.0-only (or later accepted by KDE e.V.); some files BSD-3-Clause, CC0-1.0 | [modemmanager-qt-6.1.0-1.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/modemmanager-qt-6.1.0-1.src.tar.gz) | [KDE](https://download.kde.org/stable/frameworks/6.1/modemmanager-qt-6.1.0.tar.xz) |
+| pulseaudio-qt 1.4.0-3 | 1.4.0-3 | LGPL-2.1-only or LGPL-3.0-only (or later accepted by KDE e.V.) | [pulseaudio-qt-1.4.0-3.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/pulseaudio-qt-1.4.0-3.src.tar.gz) | [KDE](https://download.kde.org/stable/pulseaudio-qt/pulseaudio-qt-1.4.0.tar.xz) |
+| libfakekey 0.3-2 | 0.3-2 | LGPL-2.0-or-later (Copyright © 2004 OpenedHand) | [libfakekey-0.3-2.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/libfakekey-0.3-2.src.tar.gz) | [Yocto Project git, tag 0.3](https://git.yoctoproject.org/libfakekey/tag/?h=0.3) |
+
+## Source code
+
+Each source package is Valve's, copied unchanged: the upstream release
+tarball (with its signature where upstream signs it), the PKGBUILD Valve built
+from, and the signing keys. None of them carry patches. Frame Control
+publishes them next to the binaries, in the
+[kdeconnect-frame-24.02.2-1 release](https://github.com/saphid/frame-control/releases/tag/kdeconnect-frame-24.02.2-1),
+so the source is available from the same place as the binaries for as long as
+Frame Control distributes them. `packages.json` pins each binary and source
+package by SHA-256.
+
+If a link ever stops working, open an issue at
+https://github.com/saphid/frame-control/issues and we'll send you the source.
+
+## Replacing them
+
+These are ordinary files in your home folder on the Frame: you may replace
+them with your own builds, and Frame Control will use whatever `kdeconnectd`
+is at `~/.local/share/frame-control/kdeconnect/root/usr/lib/kdeconnectd`
+(or the Frame's own `/usr/lib/kdeconnectd`, if SteamOS ever ships one).
+Deleting `root/.frame-control-packages` there makes Frame Control copy its
+bundled build back on next use.

frame/kdeconnect/fetch.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+"""Download the KDE Connect packages Frame Control ships for the Frame into
+frame/kdeconnect/packages, checking each against its pinned SHA-256
+(packages.json). Already-downloaded files that match are kept.
+
+ios/scripts/make_frame_bundle.py runs this; app/build/fetch-deps.js does the same
+in Node. Usage: python3 frame/kdeconnect/fetch.py
+"""
+import hashlib
+import json
+import sys
+import urllib.request
+from pathlib import Path
+
+HERE = Path(__file__).resolve().parent
+PACKAGES = HERE / "packages"
+
+
+def manifest():
+    return json.loads((HERE / "packages.json").read_text())
+
+
+def sha256(data):
+    return hashlib.sha256(data).hexdigest()
+
+
+def fetch():
+    m = manifest()
+    PACKAGES.mkdir(exist_ok=True)
+    for p in m["packages"]:
+        path = PACKAGES / p["file"]
+        if path.is_file() and sha256(path.read_bytes()) == p["sha256"]:
+            continue
+        url = m["release"] + p["file"]
+        with urllib.request.urlopen(url, timeout=120) as r:
+            data = r.read()
+        if sha256(data) != p["sha256"]:
+            raise SystemExit(f"checksum mismatch for {url}: {sha256(data)}")
+        tmp = path.with_suffix(".part")
+        tmp.write_bytes(data)
+        tmp.replace(path)
+    wanted = {p["file"] for p in m["packages"]}
+    for old in PACKAGES.iterdir():
+        if old.name not in wanted:
+            old.unlink()
+    return [PACKAGES / p["file"] for p in m["packages"]]
+
+
+if __name__ == "__main__":
+    for path in fetch():
+        print(path.relative_to(HERE.parent.parent), file=sys.stderr)

frame/kdeconnect/packages.json

@@ -0,0 +1,86 @@
+{
+  "about": "KDE Connect for the Steam Frame, as Valve builds it for the Frame's SteamOS (aarch64), and the libraries it needs that the Frame lacks. See NOTICE.md.",
+  "release": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/",
+  "packages": [
+    {
+      "name": "kdeconnect",
+      "version": "24.02.2-1",
+      "file": "kdeconnect-24.02.2-1-aarch64.pkg.tar.zst",
+      "sha256": "4cd88498f3dcd9563009f84022aeb9b60344b8afbcd1d3c5aeddc4d09727ef9d",
+      "size": 1390996,
+      "licenses": [
+        "GPL-2.0-or-later"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kdeconnect-24.02.2-1.src.tar.gz",
+      "source_sha256": "6e4b8e51f71a5492178231fa94d6cb858d7e752c51ea2b02208179f370e0733d",
+      "upstream": "https://download.kde.org/stable/release-service/24.02.2/src/kdeconnect-kde-24.02.2.tar.xz"
+    },
+    {
+      "name": "kcontacts",
+      "version": "6.1.0-1",
+      "file": "kcontacts-6.1.0-1-aarch64.pkg.tar.zst",
+      "sha256": "247c9dd8f8b781e69f818c96170756556a0b0bb75187ad88627217a5f924f90a",
+      "size": 838848,
+      "licenses": [
+        "LGPL-2.0-or-later"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kcontacts-6.1.0-1.src.tar.gz",
+      "source_sha256": "b3a1058e0eb13f6221de23835a128b166885d3b5f2a2126deafd62e556853316",
+      "upstream": "https://download.kde.org/stable/frameworks/6.1/kcontacts-6.1.0.tar.xz"
+    },
+    {
+      "name": "kpeople",
+      "version": "6.1.0-1",
+      "file": "kpeople-6.1.0-1-aarch64.pkg.tar.zst",
+      "sha256": "68d1e680f1fa6b25bc1e8c9d9b2ab3bfe53a74c2b507da0f437a82c58a542942",
+      "size": 464354,
+      "licenses": [
+        "LGPL-2.1-or-later"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kpeople-6.1.0-1.src.tar.gz",
+      "source_sha256": "3ad93d2709dbea0b3ca4fbcfbd6052f739aff3d6053de03347593d1261bd5268",
+      "upstream": "https://download.kde.org/stable/frameworks/6.1/kpeople-6.1.0.tar.xz"
+    },
+    {
+      "name": "modemmanager-qt",
+      "version": "6.1.0-1",
+      "file": "modemmanager-qt-6.1.0-1-aarch64.pkg.tar.zst",
+      "sha256": "8e918c0c2c84ed4bb2383f3de9288a2cf25cc52a26d749b63df962a3d2cc6d73",
+      "size": 627059,
+      "licenses": [
+        "LGPL-2.1-only",
+        "LGPL-3.0-only"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/modemmanager-qt-6.1.0-1.src.tar.gz",
+      "source_sha256": "4004dfe8d537399e6a7a0cea0b0ec8a4c995ab34cc75a15fb97a12c315555b09",
+      "upstream": "https://download.kde.org/stable/frameworks/6.1/modemmanager-qt-6.1.0.tar.xz"
+    },
+    {
+      "name": "pulseaudio-qt",
+      "version": "1.4.0-3",
+      "file": "pulseaudio-qt-1.4.0-3-aarch64.pkg.tar.zst",
+      "sha256": "b57b91b3cc2b6e80e69a80a7cd93ea0dc4f22b5d54a5ac25540c854e31de92ce",
+      "size": 303766,
+      "licenses": [
+        "LGPL-2.1-only",
+        "LGPL-3.0-only"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/pulseaudio-qt-1.4.0-3.src.tar.gz",
+      "source_sha256": "032490884260eeb5a66d98215926fa7ae7d678f6bf93cafe4be19c0cfa5459da",
+      "upstream": "https://download.kde.org/stable/pulseaudio-qt/pulseaudio-qt-1.4.0.tar.xz"
+    },
+    {
+      "name": "libfakekey",
+      "version": "0.3-2",
+      "file": "libfakekey-0.3-2-aarch64.pkg.tar.zst",
+      "sha256": "a7563b1dcc3702f9ab9c7c07587fdc312119461c545ae5aee693e6a829e8206a",
+      "size": 6804,
+      "licenses": [
+        "LGPL-2.0-or-later"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/libfakekey-0.3-2.src.tar.gz",
+      "source_sha256": "0e8e989660b80ec2fe2569bde5710102841bd76f981acdb1e4b72d4d8d2b4da3",
+      "upstream": "https://git.yoctoproject.org/libfakekey/tag/?h=0.3"
+    }
+  ]
+}

frame/openxr-compat/.gitattributes

@@ -0,0 +1,2 @@
+# Preserve upstream headers byte-for-byte, including their existing whitespace.
+vendor/** -whitespace

frame/openxr-compat/.gitignore

@@ -0,0 +1 @@
+/build-*/

frame/openxr-compat/CMakeLists.txt

@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.22)
+project(FrameXrCompat LANGUAGES CXX)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+add_library(compat_logic INTERFACE)
+target_include_directories(compat_logic INTERFACE . vendor)
+if(ANDROID)
+  add_library(XrApiLayer_FRAME_compat SHARED layer.cpp)
+  target_link_libraries(XrApiLayer_FRAME_compat PRIVATE compat_logic log)
+  target_compile_definitions(XrApiLayer_FRAME_compat PRIVATE XR_USE_PLATFORM_ANDROID XR_NO_PROTOTYPES)
+  target_compile_options(XrApiLayer_FRAME_compat PRIVATE -O2 -fvisibility=hidden -Wall -Wextra -Werror)
+  target_link_options(XrApiLayer_FRAME_compat PRIVATE -Wl,-z,max-page-size=16384 -Wl,--no-undefined -Wl,--exclude-libs,ALL -Wl,-s)
+else()
+  enable_testing()
+  add_executable(compat_tests tests/compat_tests.cpp)
+  target_link_libraries(compat_tests PRIVATE compat_logic)
+  target_compile_options(compat_tests PRIVATE -Wall -Wextra -Werror)
+  add_test(NAME compat_logic COMMAND compat_tests)
+  add_executable(dispatch_tests tests/dispatch_tests.cpp)
+  target_link_libraries(dispatch_tests PRIVATE compat_logic)
+  target_include_directories(dispatch_tests PRIVATE tests/shims)
+  target_compile_definitions(dispatch_tests PRIVATE XR_USE_PLATFORM_ANDROID XR_NO_PROTOTYPES)
+  target_compile_options(dispatch_tests PRIVATE -Wall -Wextra -Werror)
+  add_test(NAME layer_dispatch COMMAND dispatch_tests)
+endif()

frame/openxr-compat/README.md

@@ -0,0 +1,254 @@
+# Frame OpenXR compatibility API layer
+
+`XR_APILAYER_FRAME_compat` is an APK-local implicit API layer for Steam Frame's
+OpenXR 1.0 Android runtime. It translates selected 1.1 functionality; it is not
+a conformant replacement for a complete 1.1 runtime. Device facts are in
+[../../docs/vr-apks.md](../../docs/vr-apks.md). No headset was contacted during
+implementation. Loading, Valve-layer coexistence, controller usability, and
+Wolvic startup/rendering on Lepton remain **unverified on device**.
+
+## Behavior
+
+- The negotiated `createApiLayerInstance` hook handles `xrCreateInstance`.
+  API requests >= 1.1 become `XR_API_VERSION_1_0` (1.0.63 with these headers),
+  rather than carrying an arbitrary application's patch into the 1.0 request.
+  Requests below 1.1 are unchanged. The loader may reject future API versions
+  before any layer runs.
+- Enumerate downstream extensions through the **next layer's** GIPA before
+  creation. Only advertised promoted extensions are added, with duplicates
+  removed. All other application extensions remain, except the two stubs below.
+  Log added, stubbed and missing extensions with tag `FrameXrCompat`.
+- Missing `XR_KHR_android_thread_settings` is advertised and accepted;
+  `xrSetAndroidApplicationThreadKHR` logs and returns success without changing
+  thread scheduling. Missing `XR_OCULUS_android_session_state_enable` is
+  advertised and accepted, with no commands or additional session behavior.
+  If downstream supports either extension, preserve it and its real commands.
+  Stubbing these capabilities is intentionally limited to accepting the app's
+  request; it does not provide Meta services.
+- The manifest's `instance_extensions` makes both stubs visible during the
+  loader's pre-instance enumeration and validation. The layer also exposes
+  an enumeration implementation with count/capacity handling. Before a next
+  dispatch is available it can enumerate only its own extensions; normal app
+  global enumeration is performed by the loader, merging runtime and manifest
+  entries. See [loader_core.cpp L106–145](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/loader_core.cpp#L106)
+  and [manifest parsing L549–558](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L549).
+- Unknown missing extensions are never silently removed. Khronos may reject
+  them **before** entering the layer and name them in `OpenXR-Loader` logs
+  ([loader_instance.cpp L149–176](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/loader_instance.cpp#L149)).
+  If they reach this layer, it logs their names and preserves them for the
+  downstream failure.
+- `xrLocateSpaces` dispatches to `xrLocateSpacesKHR` per session/instance.
+  This is the only command added in 1.1. The three relevant structure types
+  (`SPACES_LOCATE_INFO`, `SPACE_LOCATIONS`, `SPACE_VELOCITIES`) and their KHR
+  versions are **numeric aliases**, and the structs are typedef aliases in
+  these headers. Explicit type conversion of local input/output copies is
+  therefore an identity conversion; the velocity chain passes through without
+  mutating its types or linkage. Output arrays remain shared and receive the
+  runtime's results, including on error; caller struct headers remain intact.
+- With palm pose enabled, rewrite both hand paths ending in
+  `/input/grip_surface/pose` to `/input/palm_ext/pose` in `xrStringToPath` and
+  in binding suggestions (including paths obtained before this layer rewrote
+  them). Unknown paths are left alone.
+- `xrGetInstanceProperties` and unrelated commands pass through. The real
+  runtime's identity is not spoofed. Dispatch tables and session ownership are
+  locked, and removed after successful destruction. Downstream calls occur
+  outside the lock.
+
+## Spec basis and interaction profiles
+
+The pinned [1.1 promotions appendix, versions.adoc L16–156](https://github.com/KhronosGroup/OpenXR-Docs/blob/release-1.1.63/specification/sources/chapters/versions.adoc#L16)
+includes a generated promotion list. Its source is the
+[1.1.63 XML registry](https://github.com/KhronosGroup/OpenXR-Docs/blob/release-1.1.63/specification/registry/xr.xml),
+selecting `extension[@promotedto='XR_VERSION_1_1']`. The full list implemented:
+
+| Promoted extension | Handling |
+| --- | --- |
+| `XR_KHR_locate_spaces` | Enable if advertised; core command alias |
+| `XR_EXT_local_floor` | Enable if advertised; reference-space enum is an alias |
+| `XR_EXT_uuid` | Enable if advertised; type alias, no commands |
+| `XR_EXT_palm_pose` | Enable if advertised; rewrite grip-surface paths |
+| `XR_VARJO_quad_views` | Enable if advertised; view-configuration enum alias, support remains optional |
+| `XR_EXT_samsung_odyssey_controller` | Enable if advertised |
+| `XR_EXT_hp_mixed_reality_controller` | Enable if advertised |
+| `XR_HTC_vive_cosmos_controller_interaction` | Enable if advertised |
+| `XR_HTC_vive_focus3_controller_interaction` | Enable if advertised |
+| `XR_ML_ml2_controller_interaction` | Enable if advertised |
+| `XR_FB_touch_controller_pro` | Enable if advertised; old profile still usable |
+| `XR_META_touch_controller_plus` | Enable if advertised; old profile still usable |
+| `XR_BD_controller_interaction` | Enable if advertised |
+| `XR_KHR_maintenance1` | Enable if advertised (included in the pinned registry's promotion list) |
+
+`XR_EXT_hand_interaction` is **not** promoted to 1.1. Preserve it if requested;
+it is not auto-enabled merely because the runtime advertises it. The parent
+provided its availability; the device notes list extensions non-exhaustively.
+
+The registry's `XR_VERSION_1_1` feature introduces 13 profile paths. For
+Samsung Odyssey, HP mixed reality, HTC Cosmos/Focus3, ML2 and the three
+ByteDance Pico profiles, drop a whole suggestion call with success when the
+corresponding extension is absent. Keep it when the extension is enabled.
+Drop the five new Meta paths: `touch_pro_controller`, `touch_plus_controller`,
+`touch_controller_rift_cv1`, `touch_controller_quest_1_rift_s`, and
+`touch_controller_quest_2`. The verified runtime notes do not list these;
+Pro/Plus promotion also renames several components, so the old extension's
+presence alone does not prove support for the new profile. This layer does
+not implement those component conversions. Existing old Pro/Plus profile
+paths are passed through if the app uses them.
+
+Preserve the documented `oculus/touch_controller`, `khr/simple_controller`,
+`valve/frame_controller` and original PC profile paths. The notes' "usual PC
+controllers" is not a complete enumerated list: availability of promoted PC
+profiles is inferred from the runtime's extension advertisement, not invented
+from that phrase. OpenXR has no general profile enumeration API. Dropping
+suggestions prevents an unsupported 1.1 profile from aborting initialization;
+it does not create bindings, so the app must also suggest a supported fallback.
+
+## Headers and licensing
+
+The required public headers (`openxr.h`, `openxr_platform.h`,
+`openxr_platform_defines.h`) are unmodified from
+[OpenXR-SDK release-1.1.63](https://github.com/KhronosGroup/OpenXR-SDK/tree/release-1.1.63/include/openxr),
+commit [f2448a8](https://github.com/KhronosGroup/OpenXR-SDK/commit/f2448a8797c85814aa892efc1ab8707900fbcc78).
+The requested filename `loader_interfaces.h` no longer exists in 1.1 SDK
+releases: negotiation was ratified and moved to `openxr_loader_negotiation.h`
+in 1.0.33 ([spec history L166–186](https://github.com/KhronosGroup/OpenXR-Docs/blob/release-1.1.63/specification/sources/chapters/versions.adoc#L166)).
+To retain that requested interface filename, the layer uses the unmodified,
+ABI-compatible [last legacy header from SDK-Source release-1.0.32](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.0.32/src/common/loader_interfaces.h).
+Only these four headers are vendored. They offer Apache-2.0 OR MIT; this
+vendoring uses Apache-2.0, reproduced in [vendor/LICENSE](vendor/LICENSE).
+
+## Android discovery and coexistence
+
+**Minimum asset-discovery loader release: 1.0.25 (2022-09-02).** Its
+[release commit, 15c3d8e](https://github.com/KhronosGroup/OpenXR-SDK-Source/commit/15c3d8eb99994e5365d6b6f96eefaf4c51a65a9d)
+explicitly announces APK-packaged API layers;
+[manifest_file.cpp L665–723](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.0.25/src/loader/manifest_file.cpp#L665)
+implements discovery, and [L934–940](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.0.25/src/loader/manifest_file.cpp#L934)
+adds asset manifests after filesystem manifests. This is not a 1.1-only feature.
+
+**For an app requesting API 1.1, use a 1.1 loader (first release 1.1.36) or
+newer.** A 1.0 loader rejects the request before the layer can downgrade it;
+see [loader_core.cpp L217–230](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/loader_core.cpp#L217).
+The runtime can remain 1.0.
+
+Source inspection at release-1.1.63 confirms:
+
+- [manifest_file.cpp L720–783](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L720)
+  uses the initialized Android asset manager and scans
+  `openxr/1/api_layers/implicit.d/` for JSON. The application must initialize
+  the loader with its Android context (`xrInitializeLoaderKHR`). In the APK,
+  the entry is `assets/openxr/1/api_layers/implicit.d/XrApiLayer_FRAME_compat.json`.
+- A bare `library_path`, as used here, is **not explicitly concatenated** with
+  `nativeLibraryDir`. [L878–900](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L878)
+  leaves a bare name for normal dynamic-linker search in the application's
+  namespace (including its native library directory). Relative paths with a
+  slash use [LocateLibraryInAssets L943–952](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L943),
+  which resolves against `GetAndroidNativeLibraryDir()`.
+  [loader_init_data.cpp L87–96](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/loader_init_data.cpp#L87)
+  obtains the asset manager and `ApplicationInfo.nativeLibraryDir` via JNI.
+  Wolvic's supplied manifest has `android:extractNativeLibs="true"`.
+- [android_utilities.cpp L267–322](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/android_utilities.cpp#L267)
+  handles runtime broker discovery, not APK layer discovery. Its
+  `native_lib_dir + so_filename` and `dlopen` refer to the runtime package.
+  They must not be confused with the app's layer library resolution.
+- [manifest_file.cpp L1008–1023](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L1008)
+  retains filesystem manifests and then appends asset manifests. This leaves
+  `/vendor`'s `XR_APILAYER_VALVE_fdm_injection` discoverable. This layer advances
+  `nextInfo` exactly once, uses next-layer GIPA, preserves the rest of the
+  create-info chain and never opens `vrclient.so` directly. No environment
+  layer-list override or assumed ordering is needed.
+
+`DISABLE_FRAME_XR_COMPAT` is the manifest's disable environment variable.
+Leave it unset to activate the implicit layer. No `enable_environment` is
+required.
+
+## Rebuild and verify
+
+NDK **r30 / 30.0.16248370**, installed at
+`~/Library/Android/ndk/30.0.16248370`, was the latest stable/LTS package shown
+by the [Android download page](https://developer.android.com/ndk/downloads)
+on 2026-09-28. Downloaded
+[android-ndk-r30-darwin.dmg](https://dl.google.com/android/repository/android-ndk-r30-darwin.dmg)
+(1,072,970,961 bytes). The page publishes SHA-1, not SHA-256:
+
+```
+expected: 48591224b6657f46eebbc9d95d4af09bbed8d107
+actual:   48591224b6657f46eebbc9d95d4af09bbed8d107  (PASS)
+```
+
+Mounted read-only with `hdiutil`; copied
+`AndroidNDK16248370.app/Contents/NDK` into that version directory. Despite the
+`darwin-x86_64` toolchain directory name, clang is universal arm64/x86_64 and
+ran on this Apple Silicon Mac.
+
+```sh
+frame/openxr-compat/build.sh
+# Or set ANDROID_NDK_HOME to an installed NDK.
+cmake -S frame/openxr-compat -B frame/openxr-compat/build-host -G Ninja
+cmake --build frame/openxr-compat/build-host
+ctest --test-dir frame/openxr-compat/build-host --output-on-failure
+```
+
+The script produces arm64-v8a / android-24, C++17, `-O2`, static libc++, hidden
+internal symbols, stripped output, and `-Wl,-z,max-page-size=16384`.
+The committed prebuilt is `prebuilt/arm64-v8a/libXrApiLayer_FRAME_compat.so`.
+Its SHA-256 is recorded below with the APK checks.
+
+[Host test output](evidence/ctest.txt): two tests passed, covering pure logic
+and the actual layer with a fake next layer and host-only log/JNI shims.
+[Full llvm-readelf -d -s -l output](evidence/readelf.txt) records three LOAD
+segments aligned `0x4000`, only `xrNegotiateLoaderApiLayerInterface` exported,
+and only `libc.so`, `libm.so`, `libdl.so`, `liblog.so` as NEEDED libraries.
+All 46 undefined imports are versioned `@LIBC` except `__android_log_print`.
+There is no `libc++_shared.so` dependency and no unstripped `.symtab`.
+
+No independent model review was run: the task explicitly prohibits delegation.
+No `CODING_STANDARDS.md` exists in this worktree or the primary worktree.
+
+## Wolvic injection artifact (Mac only)
+
+Copied `/tmp/vrapk/wq-dec` to `/tmp/vrapk/wq-layer-dec`; retained its existing
+LAUNCHER fix and native-library extraction setting. Added only:
+
+```
+assets/openxr/1/api_layers/implicit.d/XrApiLayer_FRAME_compat.json
+lib/arm64-v8a/libXrApiLayer_FRAME_compat.so
+```
+
+Built using `/tmp/vrapk/jdk/Contents/Home/bin/java` and
+`/tmp/vrapk/apktool_3.0.3.jar`, then signed in place using
+`/tmp/vrapk/uber-apk-signer-1.3.0.jar --overwrite` (embedded debug certificate):
+
+```sh
+/tmp/vrapk/jdk/Contents/Home/bin/java -jar /tmp/vrapk/apktool_3.0.3.jar \
+  b /tmp/vrapk/wq-layer-dec -o /tmp/vrapk/wolvic-quest-compat.apk
+/tmp/vrapk/jdk/Contents/Home/bin/java -jar /tmp/vrapk/uber-apk-signer-1.3.0.jar \
+  -a /tmp/vrapk/wolvic-quest-compat.apk --overwrite
+/tmp/vrapk/jdk/Contents/Home/bin/java -jar /tmp/vrapk/uber-apk-signer-1.3.0.jar \
+  -a /tmp/vrapk/wolvic-quest-compat.apk --onlyVerify
+```
+
+Final APK: `/tmp/vrapk/wolvic-quest-compat.apk` (not committed).
+The bundled `lib/arm64-v8a/libopenxr_loader.so` is byte-for-byte unchanged.
+Its strings include both `openxr/1/api_layers/implicit.d/` and
+`openxr/1/api_layers/explicit.d/`, `AddManifestFilesAndroid` error messages,
+and `xrLocateSpaces`. Thus it contains APK asset discovery and evidence of
+1.1 command support. Its exact upstream release number was not established
+from the binary; runtime execution of those paths remains unverified.
+
+Prebuilt library SHA-256:
+
+```
+479d31c374f137906e03f73209b581d65d7e6a41b8476e6425fa55a6aa40bd68
+```
+
+APK SHA-256:
+
+```
+355a681625e38b71563dcffecb031799eff27894d6ab910a659bace057e82c1f
+```
+
+Final `--onlyVerify` exited 0: zip alignment verified, v2/v3 signatures
+verified, one APK processed and zero errors. ZIP readback confirmed that the
+injected library and manifest match the committed inputs, the loader is
+unchanged, and the binary Android manifest retains the LAUNCHER category.
+See [APK verification evidence](evidence/apk-verification.txt).

frame/openxr-compat/XrApiLayer_FRAME_compat.json

@@ -0,0 +1,21 @@
+{
+  "file_format_version": "1.0.0",
+  "api_layer": {
+    "name": "XR_APILAYER_FRAME_compat",
+    "library_path": "libXrApiLayer_FRAME_compat.so",
+    "api_version": "1.1",
+    "implementation_version": "1",
+    "description": "Steam Frame OpenXR 1.1 to 1.0 compatibility",
+    "disable_environment": "DISABLE_FRAME_XR_COMPAT",
+    "instance_extensions": [
+      {
+        "name": "XR_KHR_android_thread_settings",
+        "extension_version": "6"
+      },
+      {
+        "name": "XR_OCULUS_android_session_state_enable",
+        "extension_version": "1"
+      }
+    ]
+  }
+}

frame/openxr-compat/build.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+set -eu
+here=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+ndk=${ANDROID_NDK_HOME:-"$HOME/Library/Android/ndk/30.0.16248370"}
+cmake -S "$here" -B "$here/build-android" -G Ninja \
+  -DCMAKE_TOOLCHAIN_FILE="$ndk/build/cmake/android.toolchain.cmake" \
+  -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=android-24 \
+  -DANDROID_STL=c++_static -DCMAKE_BUILD_TYPE=Release
+cmake --build "$here/build-android"
+mkdir -p "$here/prebuilt/arm64-v8a"
+cp "$here/build-android/libXrApiLayer_FRAME_compat.so" "$here/prebuilt/arm64-v8a/"
+shasum -a 256 "$here/prebuilt/arm64-v8a/libXrApiLayer_FRAME_compat.so"

frame/openxr-compat/compat_logic.h

@@ -0,0 +1,88 @@
+#pragma once
+#include <openxr/openxr.h>
+#include <algorithm>
+#include <string>
+#include <vector>
+
+namespace frame {
+using Names = std::vector<std::string>;
+inline constexpr const char* layerName = "XR_APILAYER_FRAME_compat";
+inline constexpr const char* stubs[] = {"XR_KHR_android_thread_settings", "XR_OCULUS_android_session_state_enable"};
+// OpenXR-Docs release-1.1.63 registry: promotedto="XR_VERSION_1_1".
+inline constexpr const char* promotions[] = {
+    "XR_KHR_locate_spaces", "XR_EXT_local_floor", "XR_EXT_uuid", "XR_EXT_palm_pose",
+    "XR_VARJO_quad_views", "XR_EXT_samsung_odyssey_controller", "XR_EXT_hp_mixed_reality_controller",
+    "XR_HTC_vive_cosmos_controller_interaction", "XR_HTC_vive_focus3_controller_interaction",
+    "XR_ML_ml2_controller_interaction", "XR_FB_touch_controller_pro", "XR_META_touch_controller_plus",
+    "XR_BD_controller_interaction", "XR_KHR_maintenance1"};
+inline bool has(const Names& names, const std::string& n) {
+    return std::find(names.begin(), names.end(), n) != names.end();
+}
+inline bool downgrade(XrVersion v) { return v >= XR_MAKE_VERSION(1, 1, 0); }
+inline XrVersion runtimeVersion(XrVersion v) { return downgrade(v) ? XR_API_VERSION_1_0 : v; }
+struct ExtensionPlan { Names downstream, stubbed, missing, added; };
+inline ExtensionPlan extensions(const Names& requested, const Names& available, bool promote) {
+    ExtensionPlan p;
+    for (const auto& n : requested) {
+        if (!has(available, n) && (n == stubs[0] || n == stubs[1])) p.stubbed.push_back(n);
+        else {
+            if (!has(p.downstream, n)) p.downstream.push_back(n);
+            if (!has(available, n)) p.missing.push_back(n);
+        }
+    }
+    if (promote) for (auto n : promotions) if (has(available, n) && !has(p.downstream, n)) {
+        p.downstream.push_back(n); p.added.push_back(n);
+    }
+    return p;
+}
+// 1.1's grip_surface is XR_EXT_palm_pose's palm_ext renamed (same pose), not the grip pose.
+inline std::string rewritePath(std::string p, bool palm) {
+    const std::string suffix = "/input/grip_surface/pose";
+    if (palm && (p == "/user/hand/left" + suffix || p == "/user/hand/right" + suffix))
+        p.replace(p.size() - suffix.size(), suffix.size(), "/input/palm_ext/pose");
+    return p;
+}
+// Profiles added to 1.1. The three legacy Meta splits have no 1.0 extension.
+// The renamed Pro/Plus profiles have different component semantics; do not
+// claim the old extension implements the new profile merely because it exists.
+inline bool dropProfile(const std::string& p, const Names& enabled) {
+    for (auto name : {"touch_pro_controller", "touch_plus_controller", "touch_controller_rift_cv1",
+                      "touch_controller_quest_1_rift_s", "touch_controller_quest_2"})
+        if (p == std::string("/interaction_profiles/meta/") + name) return true;
+    const char* profiles[][2] = {
+        {"samsung/odyssey_controller", "XR_EXT_samsung_odyssey_controller"},
+        {"hp/mixed_reality_controller", "XR_EXT_hp_mixed_reality_controller"},
+        {"htc/vive_cosmos_controller", "XR_HTC_vive_cosmos_controller_interaction"},
+        {"htc/vive_focus3_controller", "XR_HTC_vive_focus3_controller_interaction"},
+        {"ml/ml2_controller", "XR_ML_ml2_controller_interaction"},
+        {"bytedance/pico_neo3_controller", "XR_BD_controller_interaction"},
+        {"bytedance/pico4_controller", "XR_BD_controller_interaction"},
+        {"bytedance/pico_g3_controller", "XR_BD_controller_interaction"}};
+    for (auto& entry : profiles) if (p == std::string("/interaction_profiles/") + entry[0])
+        return !has(enabled, entry[1]);
+    return false;
+}
+inline XrStructureType extensionType(XrStructureType t) {
+    switch (t) {
+    case XR_TYPE_SPACES_LOCATE_INFO: return XR_TYPE_SPACES_LOCATE_INFO_KHR;
+    case XR_TYPE_SPACE_LOCATIONS: return XR_TYPE_SPACE_LOCATIONS_KHR;
+    case XR_TYPE_SPACE_VELOCITIES: return XR_TYPE_SPACE_VELOCITIES_KHR;
+    default: return t;
+    }
+}
+inline XrResult locate(PFN_xrLocateSpacesKHR next, XrSession session,
+                       const XrSpacesLocateInfo* info, XrSpaceLocations* locations) {
+    if (!info || !locations) return XR_ERROR_VALIDATION_FAILURE;
+    static_assert(XR_TYPE_SPACE_VELOCITIES == XR_TYPE_SPACE_VELOCITIES_KHR);
+    static_assert(XR_TYPE_SPACE_LOCATIONS == XR_TYPE_SPACE_LOCATIONS_KHR);
+    static_assert(XR_TYPE_SPACES_LOCATE_INFO == XR_TYPE_SPACES_LOCATE_INFO_KHR);
+    auto in = *info;
+    auto out = *locations;
+    in.type = extensionType(in.type); out.type = extensionType(out.type);
+    // The enums and typedefs are exact aliases. All chained velocities,
+    // including unknown next structures, can be forwarded without mutation.
+    const auto result = next(session, &in, &out);
+    locations->locationCount = out.locationCount;
+    return result;
+}
+}

frame/openxr-compat/evidence/apk-verification.txt

@@ -0,0 +1,29 @@
+2026-09-28, Mac only; no device connection.
+APK: /tmp/vrapk/wolvic-quest-compat.apk
+SHA-256: 355a681625e38b71563dcffecb031799eff27894d6ab910a659bace057e82c1f
+
+Command:
+/tmp/vrapk/jdk/Contents/Home/bin/java -jar /tmp/vrapk/uber-apk-signer-1.3.0.jar -a /tmp/vrapk/wolvic-quest-compat.apk --onlyVerify
+Exit status: 0
+Relevant output:
+- zipalign verified
+- signature verified [v2, v3]
+Successfully processed 1 APKs and 0 errors in 0.63 seconds.
+
+ZIP readback checks: PASS
+- Injected JSON identical to frame/openxr-compat/XrApiLayer_FRAME_compat.json.
+- Injected SO identical to prebuilt/arm64-v8a/libXrApiLayer_FRAME_compat.so.
+- Existing libopenxr_loader.so identical to /tmp/vrapk/wq-dec version.
+- Binary AndroidManifest.xml contains android.intent.category.LAUNCHER.
+
+Loader strings present:
+openxr/1/api_layers/implicit.d/
+openxr/1/api_layers/explicit.d/
+ApiLayerManifestFile::AddManifestFilesAndroid unable to open asset
+xrLocateSpaces
+
+NDK: 30.0.16248370 (r30)
+DMG size: 1072970961 bytes
+Download-page SHA-1: 48591224b6657f46eebbc9d95d4af09bbed8d107
+Measured SHA-1:      48591224b6657f46eebbc9d95d4af09bbed8d107
+SHA check: PASS

frame/openxr-compat/evidence/ctest.txt

@@ -0,0 +1,9 @@
+Test project /Users/saphid/projects/steam-frame-xrlayer/frame/openxr-compat/build-host
+    Start 1: compat_logic
+1/2 Test #1: compat_logic .....................   Passed    0.01 sec
+    Start 2: layer_dispatch
+2/2 Test #2: layer_dispatch ...................   Passed    0.42 sec
+
+100% tests passed out of 2
+
+Total Test time (real) =   0.43 sec

frame/openxr-compat/evidence/readelf.txt

@@ -0,0 +1,110 @@
+
+Elf file type is DYN (Shared object file)
+Entry point 0x0
+There are 9 program headers, starting at offset 64
+
+Program Headers:
+  Type           Offset   VirtAddr           PhysAddr           FileSiz  MemSiz   Flg Align
+  PHDR           0x000040 0x0000000000000040 0x0000000000000040 0x0001f8 0x0001f8 R   0x8
+  LOAD           0x000000 0x0000000000000000 0x0000000000000000 0x0169e0 0x0169e0 R E 0x4000
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+  DYNAMIC        0x017048 0x000000000001b048 0x000000000001b048 0x0001c0 0x0001c0 RW  0x8
+  GNU_RELRO      0x0169e0 0x000000000001a9e0 0x000000000001a9e0 0x000a90 0x001620 R   0x1
+  GNU_EH_FRAME   0x004fb4 0x0000000000004fb4 0x0000000000004fb4 0x00070c 0x00070c R   0x4
+  GNU_STACK      0x000000 0x0000000000000000 0x0000000000000000 0x000000 0x000000 RW  0x0
+  NOTE           0x000238 0x0000000000000238 0x0000000000000238 0x0000bc 0x0000bc R   0x4
+
+ Section to Segment mapping:
+  Segment Sections...
+   00
+   01     .note.android.ident .note.gnu.build-id .dynsym .gnu.version .gnu.version_r .gnu.hash .dynstr .rela.dyn .rela.plt .gcc_except_table .rodata .eh_frame_hdr .eh_frame .text __lcxx_override .plt
+   02     .data.rel.ro .fini_array .init_array .dynamic .got .got.plt .relro_padding
+   03     .data .bss
+   04     .dynamic
+   05     .data.rel.ro .fini_array .init_array .dynamic .got .got.plt .relro_padding
+   06     .eh_frame_hdr
+   07
+   08     .note.android.ident .note.gnu.build-id
+   None   .comment .shstrtab
+Dynamic section at offset 0x17048 contains 28 entries:
+  Tag                Type           Name/Value
+  0x0000000000000001 (NEEDED)       Shared library: [liblog.so]
+  0x0000000000000001 (NEEDED)       Shared library: [libm.so]
+  0x0000000000000001 (NEEDED)       Shared library: [libdl.so]
+  0x0000000000000001 (NEEDED)       Shared library: [libc.so]
+  0x000000000000000e (SONAME)       Library soname: [libXrApiLayer_FRAME_compat.so]
+  0x000000000000001e (FLAGS)        BIND_NOW
+  0x000000006ffffffb (FLAGS_1)      NOW
+  0x0000000000000007 (RELA)         0xae8
+  0x0000000000000008 (RELASZ)       5424 (bytes)
+  0x0000000000000009 (RELAENT)      24 (bytes)
+  0x000000006ffffff9 (RELACOUNT)    225
+  0x0000000000000017 (JMPREL)       0x2018
+  0x0000000000000002 (PLTRELSZ)     1080 (bytes)
+  0x0000000000000003 (PLTGOT)       0x1b2f0
+  0x0000000000000014 (PLTREL)       RELA
+  0x0000000000000006 (SYMTAB)       0x2f8
+  0x000000000000000b (SYMENT)       24 (bytes)
+  0x0000000000000005 (STRTAB)       0x838
+  0x000000000000000a (STRSZ)        681 (bytes)
+  0x000000006ffffef5 (GNU_HASH)     0x818
+  0x0000000000000019 (INIT_ARRAY)   0x1b030
+  0x000000000000001b (INIT_ARRAYSZ) 24 (bytes)
+  0x000000000000001a (FINI_ARRAY)   0x1b020
+  0x000000000000001c (FINI_ARRAYSZ) 16 (bytes)
+  0x000000006ffffff0 (VERSYM)       0x778
+  0x000000006ffffffe (VERNEED)      0x7d8
+  0x000000006fffffff (VERNEEDNUM)   2
+  0x0000000000000000 (NULL)         0x0
+
+Symbol table '.dynsym' contains 48 entries:
+   Num:    Value          Size Type    Bind   Vis       Ndx Name
+     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT   UND
+     1: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND __cxa_finalize@LIBC
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+    47: 00000000000081a0   284 FUNC    GLOBAL DEFAULT    14 xrNegotiateLoaderApiLayerInterface

frame/openxr-compat/layer.cpp

@@ -0,0 +1,289 @@
+#include "compat_logic.h"
+#include <loader_interfaces.h>
+#include <jni.h>
+#include <openxr/openxr_platform.h>
+#include <android/log.h>
+#include <cstring>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#define LOG(...) __android_log_print(ANDROID_LOG_INFO, "FrameXrCompat", __VA_ARGS__)
+#define GUARD_END catch (const std::bad_alloc&) { return XR_ERROR_OUT_OF_MEMORY; } catch (...) { return XR_ERROR_RUNTIME_FAILURE; }
+namespace {
+struct Dispatch {
+    PFN_xrGetInstanceProcAddr gipa{};
+    PFN_xrDestroyInstance destroy{};
+    PFN_xrCreateSession createSession{};
+    PFN_xrDestroySession destroySession{};
+    PFN_xrLocateSpacesKHR locate{};
+    PFN_xrStringToPath stringToPath{};
+    PFN_xrPathToString pathToString{};
+    PFN_xrSuggestInteractionProfileBindings suggest{};
+    PFN_xrSetAndroidApplicationThreadKHR thread{};
+    PFN_xrRequestDisplayRefreshRateFB refresh{};
+    frame::Names enabled, stubbed;
+    XrInstance instance{};
+    bool promote{}, palm{};
+};
+std::mutex mutex;
+std::unordered_map<XrInstance, std::shared_ptr<Dispatch>> instances;
+std::unordered_map<XrSession, std::shared_ptr<Dispatch>> sessions;
+// No runtime library is opened here: every call goes through the next layer.
+PFN_xrEnumerateInstanceExtensionProperties enumerateNext{};
+template<class T> T proc(PFN_xrGetInstanceProcAddr gipa, XrInstance i, const char* name) {
+    PFN_xrVoidFunction f{};
+    if (XR_FAILED(gipa(i, name, &f))) return nullptr;
+    return reinterpret_cast<T>(f);
+}
+std::shared_ptr<Dispatch> get(XrInstance i) {
+    std::lock_guard<std::mutex> lock(mutex);
+    auto it = instances.find(i); return it == instances.end() ? nullptr : it->second;
+}
+std::shared_ptr<Dispatch> get(XrSession s) {
+    std::lock_guard<std::mutex> lock(mutex);
+    auto it = sessions.find(s); return it == sessions.end() ? nullptr : it->second;
+}
+XrResult properties(PFN_xrEnumerateInstanceExtensionProperties fn,
+                    std::vector<XrExtensionProperties>& out) {
+    if (!fn) return XR_ERROR_FUNCTION_UNSUPPORTED;
+    for (int attempt = 0; attempt < 4; ++attempt) {
+        uint32_t n{};
+        auto r = fn(nullptr, 0, &n, nullptr);
+        if (XR_FAILED(r)) return r;
+        out.assign(n, {XR_TYPE_EXTENSION_PROPERTIES, nullptr, {}, 0});
+        if (!n) return XR_SUCCESS;
+        r = fn(nullptr, n, &n, out.data());
+        if (r == XR_ERROR_SIZE_INSUFFICIENT) continue;
+        if (XR_FAILED(r)) return r;
+        out.resize(n); return XR_SUCCESS;
+    }
+    return XR_ERROR_RUNTIME_FAILURE;
+}
+XrResult XRAPI_CALL enumerate(const char* layer, uint32_t capacity, uint32_t* count,
+                              XrExtensionProperties* output) try {
+    if (!count || (capacity && !output)) return XR_ERROR_VALIDATION_FAILURE;
+    const bool own = layer && std::strcmp(layer, frame::layerName) == 0;
+    PFN_xrEnumerateInstanceExtensionProperties next;
+    { std::lock_guard<std::mutex> lock(mutex); next = enumerateNext; }
+    if (layer && *layer && !own) return next ? next(layer, capacity, count, output) : XR_ERROR_API_LAYER_NOT_PRESENT;
+    std::vector<XrExtensionProperties> all;
+    if (!own && next) {
+        auto r = properties(next, all); if (XR_FAILED(r)) return r;
+    }
+    for (unsigned i = 0; i < 2; ++i) {
+        bool found = false;
+        for (auto& e : all) if (!std::strcmp(e.extensionName, frame::stubs[i])) found = true;
+        if (!found) {
+            XrExtensionProperties p{XR_TYPE_EXTENSION_PROPERTIES, nullptr, {}, i == 0 ? XR_KHR_android_thread_settings_SPEC_VERSION : 1u};
+            std::strcpy(p.extensionName, frame::stubs[i]); all.push_back(p);
+        }
+    }
+    *count = static_cast<uint32_t>(all.size());
+    LOG("enumerate extensions: %u (includes stubs)", *count);
+    if (!capacity) return XR_SUCCESS;
+    if (capacity < all.size()) return XR_ERROR_SIZE_INSUFFICIENT;
+    for (size_t i = 0; i < all.size(); ++i) {
+        if (output[i].type != XR_TYPE_EXTENSION_PROPERTIES) return XR_ERROR_VALIDATION_FAILURE;
+        std::strcpy(output[i].extensionName, all[i].extensionName);
+        output[i].extensionVersion = all[i].extensionVersion;
+    }
+    return XR_SUCCESS;
+} GUARD_END
+XrResult XRAPI_CALL destroyInstance(XrInstance i) try {
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    auto r = d->destroy(i);
+    if (XR_SUCCEEDED(r)) {
+        std::lock_guard<std::mutex> lock(mutex);
+        for (auto it = sessions.begin(); it != sessions.end();) {
+            if (it->second == d) it = sessions.erase(it); else ++it;
+        }
+        instances.erase(i);
+        if (instances.empty()) enumerateNext = nullptr;
+    }
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL createSession(XrInstance i, const XrSessionCreateInfo* info, XrSession* s) try {
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    auto r = d->createSession(i, info, s);
+    if (XR_SUCCEEDED(r)) {
+        try { std::lock_guard<std::mutex> lock(mutex); sessions.emplace(*s, d); }
+        catch (...) { d->destroySession(*s); *s = XR_NULL_HANDLE; throw; }
+    }
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL destroySession(XrSession s) try {
+    auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
+    auto r = d->destroySession(s);
+    if (XR_SUCCEEDED(r)) { std::lock_guard<std::mutex> lock(mutex); sessions.erase(s); }
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL locateSpaces(XrSession s, const XrSpacesLocateInfo* in, XrSpaceLocations* out) try {
+    auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
+    if (!d->locate) return XR_ERROR_FUNCTION_UNSUPPORTED;
+    static std::once_flag logged;  // called every frame
+    std::call_once(logged, [] { LOG("xrLocateSpaces -> xrLocateSpacesKHR (core/KHR type aliases)"); });
+    return frame::locate(d->locate, s, in, out);
+} GUARD_END
+XrResult XRAPI_CALL threadSettings(XrSession s, XrAndroidThreadTypeKHR type, uint32_t tid) try {
+    auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
+    if (frame::has(d->stubbed, frame::stubs[0])) {
+        LOG("stub xrSetAndroidApplicationThreadKHR type=%d tid=%u -> XR_SUCCESS (no scheduling change)", type, tid);
+        return XR_SUCCESS;
+    }
+    return d->thread ? d->thread(s, type, tid) : XR_ERROR_FUNCTION_UNSUPPORTED;
+} GUARD_END
+// SteamVR offers only the current refresh rate; Quest apps ask for 72/90/120 Hz
+// and abort on the error, so keep the current rate and report success.
+XrResult XRAPI_CALL requestRefreshRate(XrSession s, float hz) try {
+    auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
+    auto r = d->refresh(s, hz);
+    if (r == XR_ERROR_DISPLAY_REFRESH_RATE_UNSUPPORTED_FB) {
+        LOG("xrRequestDisplayRefreshRateFB %.1f Hz unsupported; keeping the current rate", hz);
+        return XR_SUCCESS;
+    }
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL stringToPath(XrInstance i, const char* path, XrPath* out) try {
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    if (!path) return XR_ERROR_VALIDATION_FAILURE;
+    auto rewritten = frame::rewritePath(path, d->palm);
+    if (rewritten != path) LOG("path %s -> %s", path, rewritten.c_str());
+    return d->stringToPath(i, rewritten.c_str(), out);
+} GUARD_END
+XrResult pathString(const Dispatch& d, XrPath path, std::string& out) {
+    uint32_t n{};
+    auto r = d.pathToString(d.instance, path, 0, &n, nullptr);
+    if (XR_FAILED(r)) return r;
+    std::vector<char> text(n);
+    r = d.pathToString(d.instance, path, n, &n, text.data());
+    if (XR_SUCCEEDED(r)) out.assign(text.data());
+    return r;
+}
+XrResult XRAPI_CALL suggest(XrInstance i, const XrInteractionProfileSuggestedBinding* info) try {
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    if (!info || (info->countSuggestedBindings && !info->suggestedBindings)) return XR_ERROR_VALIDATION_FAILURE;
+    std::string profile;
+    auto r = pathString(*d, info->interactionProfile, profile);
+    if (XR_FAILED(r)) return r;
+    if (d->promote && frame::dropProfile(profile, d->enabled)) {
+        LOG("drop unsupported 1.1 interaction profile %s (%u suggestions)", profile.c_str(), info->countSuggestedBindings);
+        return XR_SUCCESS;
+    }
+    auto copy = *info;
+    std::vector<XrActionSuggestedBinding> bindings;
+    for (uint32_t index = 0; index < info->countSuggestedBindings; ++index) {
+        auto b = info->suggestedBindings[index];
+        std::string path;
+        r = pathString(*d, b.binding, path); if (XR_FAILED(r)) return r;
+        auto rewritten = frame::rewritePath(path, d->palm);
+        if (rewritten != path) {
+            LOG("binding %s -> %s", path.c_str(), rewritten.c_str());
+            r = d->stringToPath(i, rewritten.c_str(), &b.binding); if (XR_FAILED(r)) return r;
+        }
+        bindings.push_back(b);
+    }
+    copy.suggestedBindings = bindings.data();
+    return d->suggest(i, &copy);
+} GUARD_END
+XrResult XRAPI_CALL gipa(XrInstance, const char*, PFN_xrVoidFunction*);
+XrResult XRAPI_CALL createLayer(const XrInstanceCreateInfo* info, const XrApiLayerCreateInfo* layer,
+                               XrInstance* instance) try {
+    if (!info || !instance || !layer || layer->structType != XR_LOADER_INTERFACE_STRUCT_API_LAYER_CREATE_INFO ||
+        layer->structVersion != XR_API_LAYER_CREATE_INFO_STRUCT_VERSION || layer->structSize != sizeof(*layer) ||
+        !layer->nextInfo || layer->nextInfo->structType != XR_LOADER_INTERFACE_STRUCT_API_LAYER_NEXT_INFO ||
+        layer->nextInfo->structVersion != XR_API_LAYER_NEXT_INFO_STRUCT_VERSION ||
+        layer->nextInfo->structSize != sizeof(XrApiLayerNextInfo) ||
+        !layer->nextInfo->nextGetInstanceProcAddr || !layer->nextInfo->nextCreateApiLayerInstance ||
+        (info->enabledExtensionCount && !info->enabledExtensionNames)) return XR_ERROR_INITIALIZATION_FAILED;
+    *instance = XR_NULL_HANDLE;
+    auto next = layer->nextInfo->nextGetInstanceProcAddr;
+    auto enumFn = proc<PFN_xrEnumerateInstanceExtensionProperties>(next, XR_NULL_HANDLE, "xrEnumerateInstanceExtensionProperties");
+    std::vector<XrExtensionProperties> available;
+    auto r = properties(enumFn, available); if (XR_FAILED(r)) { LOG("runtime extension enumeration failed: %d", r); return r; }
+    frame::Names requested, supported;
+    for (auto& p : available) supported.emplace_back(p.extensionName);
+    for (uint32_t n = 0; n < info->enabledExtensionCount; ++n) {
+        if (!info->enabledExtensionNames[n]) return XR_ERROR_VALIDATION_FAILURE;
+        requested.emplace_back(info->enabledExtensionNames[n]);
+    }
+    auto d = std::make_shared<Dispatch>();
+    d->promote = frame::downgrade(info->applicationInfo.apiVersion);
+    auto plan = frame::extensions(requested, supported, d->promote);
+    for (auto& n : plan.added) LOG("enable promoted extension %s", n.c_str());
+    for (auto& n : plan.stubbed) LOG("emulate missing extension %s; remove downstream", n.c_str());
+    for (auto& n : plan.missing) LOG("unsupported extension %s retained; runtime must reject", n.c_str());
+    auto copy = *info;
+    copy.applicationInfo.apiVersion = frame::runtimeVersion(info->applicationInfo.apiVersion);
+    if (d->promote) LOG("API %u.%u.%u -> 1.0.%u", unsigned(XR_VERSION_MAJOR(info->applicationInfo.apiVersion)),
+        unsigned(XR_VERSION_MINOR(info->applicationInfo.apiVersion)), unsigned(XR_VERSION_PATCH(info->applicationInfo.apiVersion)),
+        unsigned(XR_VERSION_PATCH(copy.applicationInfo.apiVersion)));
+    std::vector<const char*> names;
+    for (auto& n : plan.downstream) names.push_back(n.c_str());
+    copy.enabledExtensionCount = static_cast<uint32_t>(names.size()); copy.enabledExtensionNames = names.data();
+    auto chain = *layer; chain.nextInfo = layer->nextInfo->next;
+    r = layer->nextInfo->nextCreateApiLayerInstance(&copy, &chain, instance);
+    if (XR_FAILED(r)) { LOG("downstream xrCreateInstance -> %d", r); return r; }
+    d->gipa = next; d->instance = *instance;
+    d->destroy = proc<PFN_xrDestroyInstance>(next, *instance, "xrDestroyInstance");
+    // A successful runtime instance must expose xrDestroyInstance.
+    if (!d->destroy) {  // nothing could ever destroy it, so don't hand it out
+        LOG("invalid downstream: missing xrDestroyInstance"); *instance = XR_NULL_HANDLE; return XR_ERROR_INITIALIZATION_FAILED;
+    }
+    try {
+        d->enabled = std::move(plan.downstream); d->stubbed = std::move(plan.stubbed);
+        d->palm = frame::has(d->enabled, "XR_EXT_palm_pose");
+#define LOAD(field, name) d->field = proc<PFN_##name>(next, *instance, #name)
+        LOAD(createSession, xrCreateSession); LOAD(destroySession, xrDestroySession);
+        LOAD(stringToPath, xrStringToPath); LOAD(pathToString, xrPathToString);
+        LOAD(suggest, xrSuggestInteractionProfileBindings);
+        if (frame::has(d->enabled, "XR_KHR_locate_spaces")) LOAD(locate, xrLocateSpacesKHR);
+        if (frame::has(d->enabled, frame::stubs[0])) LOAD(thread, xrSetAndroidApplicationThreadKHR);
+        if (frame::has(d->enabled, "XR_FB_display_refresh_rate")) LOAD(refresh, xrRequestDisplayRefreshRateFB);
+#undef LOAD
+        if (!d->createSession || !d->destroySession || !d->stringToPath || !d->pathToString || !d->suggest) {
+            d->destroy(*instance); *instance = XR_NULL_HANDLE; return XR_ERROR_INITIALIZATION_FAILED;
+        }
+        std::lock_guard<std::mutex> lock(mutex);
+        instances.emplace(*instance, d); enumerateNext = enumFn;
+    } catch (...) { d->destroy(*instance); *instance = XR_NULL_HANDLE; throw; }
+    LOG("created instance; next-layer dispatch retained (Valve layer coexists)");
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL gipa(XrInstance i, const char* name, PFN_xrVoidFunction* out) try {
+    if (!name || !out) return XR_ERROR_VALIDATION_FAILURE;
+    *out = nullptr;
+#define RETURN_PROC(n, fn) if (!std::strcmp(name, n)) { *out = reinterpret_cast<PFN_xrVoidFunction>(fn); return XR_SUCCESS; }
+    RETURN_PROC("xrGetInstanceProcAddr", gipa)
+    RETURN_PROC("xrCreateApiLayerInstance", createLayer)
+    RETURN_PROC("xrEnumerateInstanceExtensionProperties", enumerate)
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    RETURN_PROC("xrDestroyInstance", destroyInstance)
+    RETURN_PROC("xrCreateSession", createSession)
+    RETURN_PROC("xrDestroySession", destroySession)
+    RETURN_PROC("xrStringToPath", stringToPath)
+    RETURN_PROC("xrSuggestInteractionProfileBindings", suggest)
+    if (d->locate && d->promote) { RETURN_PROC("xrLocateSpaces", locateSpaces) }
+    if (frame::has(d->stubbed, frame::stubs[0])) { RETURN_PROC("xrSetAndroidApplicationThreadKHR", threadSettings) }
+    if (d->refresh) { RETURN_PROC("xrRequestDisplayRefreshRateFB", requestRefreshRate) }
+#undef RETURN_PROC
+    // Includes xrGetInstanceProperties: report the actual runtime's identity.
+    return d->gipa(i, name, out);
+} GUARD_END
+} // namespace
+extern "C" __attribute__((visibility("default"))) XrResult XRAPI_CALL xrNegotiateLoaderApiLayerInterface(
+    const XrNegotiateLoaderInfo* loader, const char* name, XrNegotiateApiLayerRequest* request) {
+    if (!loader || !name || !request || std::strcmp(name, frame::layerName) ||
+        loader->structType != XR_LOADER_INTERFACE_STRUCT_LOADER_INFO ||
+        loader->structVersion != XR_LOADER_INFO_STRUCT_VERSION || loader->structSize != sizeof(*loader) ||
+        request->structType != XR_LOADER_INTERFACE_STRUCT_API_LAYER_REQUEST ||
+        request->structVersion != XR_API_LAYER_INFO_STRUCT_VERSION || request->structSize != sizeof(*request) ||
+        loader->minInterfaceVersion > 1 || loader->maxInterfaceVersion < 1 ||
+        loader->minApiVersion > XR_CURRENT_API_VERSION || loader->maxApiVersion < XR_MAKE_VERSION(1, 1, 0))
+        return XR_ERROR_INITIALIZATION_FAILED;
+    request->layerInterfaceVersion = 1;
+    request->layerApiVersion = std::min<XrVersion>(XR_CURRENT_API_VERSION, loader->maxApiVersion);
+    request->getInstanceProcAddr = gipa; request->createApiLayerInstance = createLayer;
+    LOG("negotiated interface 1, API 1.1");
+    return XR_SUCCESS;
+}

frame/openxr-compat/tests/compat_tests.cpp

@@ -0,0 +1,70 @@
+#include "compat_logic.h"
+#include <cstdlib>
+#include <iostream>
+#include <type_traits>
+#define CHECK(expr) do { if (!(expr)) { std::cerr << __LINE__ << ": " #expr "\n"; std::exit(1); } } while (false)
+namespace {
+void* sentinel = reinterpret_cast<void*>(0x1234);
+XrResult XRAPI_CALL fakeLocate(XrSession, const XrSpacesLocateInfo* in, XrSpaceLocations* out) {
+    CHECK(in->type == XR_TYPE_SPACES_LOCATE_INFO_KHR);
+    CHECK(out->type == XR_TYPE_SPACE_LOCATIONS_KHR);
+    CHECK(in->next == sentinel);
+    auto* velocities = static_cast<XrSpaceVelocitiesKHR*>(out->next);
+    CHECK(velocities->type == XR_TYPE_SPACE_VELOCITIES_KHR);
+    CHECK(velocities->next == sentinel);
+    CHECK(in->spaceCount == 1 && in->time == 123);
+    out->locations[0].pose.position.x = 42;
+    velocities->velocities[0].linearVelocity.y = 7;
+    return XR_SUCCESS;
+}
+}
+int main() {
+    using namespace frame;
+    CHECK(!downgrade(XR_MAKE_VERSION(1, 0, 99)));
+    CHECK(runtimeVersion(XR_MAKE_VERSION(1, 0, 42)) == XR_MAKE_VERSION(1, 0, 42));
+    CHECK(runtimeVersion(XR_MAKE_VERSION(1, 1, 0)) == XR_API_VERSION_1_0);
+    CHECK(runtimeVersion(XR_MAKE_VERSION(1, 1, 999)) == XR_API_VERSION_1_0);
+    CHECK(runtimeVersion(XR_MAKE_VERSION(2, 0, 0)) == XR_API_VERSION_1_0);
+    Names available{"XR_KHR_locate_spaces", "XR_EXT_palm_pose", "XR_EXT_hand_interaction", "XR_VARJO_quad_views"};
+    Names requested{stubs[0], stubs[1], "XR_MISSING_test", "XR_EXT_palm_pose"};
+    auto p = extensions(requested, available, true);
+    CHECK(p.stubbed.size() == 2 && p.missing == Names{"XR_MISSING_test"});
+    CHECK(has(p.downstream, "XR_MISSING_test"));
+    CHECK(has(p.downstream, "XR_KHR_locate_spaces") && has(p.downstream, "XR_VARJO_quad_views"));
+    CHECK(!has(p.downstream, "XR_EXT_hand_interaction"));
+    CHECK(!has(p.downstream, "XR_EXT_local_floor"));
+    CHECK(std::count(p.downstream.begin(), p.downstream.end(), "XR_EXT_palm_pose") == 1);
+    available.push_back(stubs[0]);
+    CHECK(extensions(requested, available, true).stubbed == Names{stubs[1]});
+    CHECK(extensions({}, available, false).downstream.empty());
+    CHECK(rewritePath("/user/hand/left/input/grip_surface/pose", true) == "/user/hand/left/input/palm_ext/pose");
+    CHECK(rewritePath("/user/hand/right/input/grip_surface/pose", true) == "/user/hand/right/input/palm_ext/pose");
+    CHECK(rewritePath("/user/hand/left/input/grip_surface/pose", false) == "/user/hand/left/input/grip_surface/pose");
+    CHECK(rewritePath("/user/hand/left/input/grip_surface/pose/extra", true) == "/user/hand/left/input/grip_surface/pose/extra");
+    CHECK(rewritePath("/user/hand/left/input/grip/pose", true) == "/user/hand/left/input/grip/pose");
+    CHECK(dropProfile("/interaction_profiles/meta/touch_pro_controller", {}));
+    CHECK(dropProfile("/interaction_profiles/meta/touch_controller_quest_2", {}));
+    CHECK(dropProfile("/interaction_profiles/hp/mixed_reality_controller", {}));
+    CHECK(!dropProfile("/interaction_profiles/hp/mixed_reality_controller", {"XR_EXT_hp_mixed_reality_controller"}));
+    CHECK(!dropProfile("/interaction_profiles/oculus/touch_controller", {}));
+    CHECK(!dropProfile("/interaction_profiles/khr/simple_controller", {}));
+    CHECK(!dropProfile("/interaction_profiles/valve/frame_controller", {}));
+    CHECK(!dropProfile("/interaction_profiles/ext/hand_interaction_ext", {}));
+    CHECK(extensionType(XR_TYPE_SPACES_LOCATE_INFO) == XR_TYPE_SPACES_LOCATE_INFO_KHR);
+    CHECK(extensionType(XR_TYPE_SPACE_LOCATIONS) == XR_TYPE_SPACE_LOCATIONS_KHR);
+    CHECK(extensionType(XR_TYPE_SPACE_VELOCITIES) == XR_TYPE_SPACE_VELOCITIES_KHR);
+    CHECK(extensionType(XR_TYPE_INSTANCE_CREATE_INFO) == XR_TYPE_INSTANCE_CREATE_INFO);
+    static_assert(std::is_same_v<XrSpaceVelocities, XrSpaceVelocitiesKHR>);
+    XrSpace space{};
+    XrSpaceLocationData data{};
+    XrSpaceVelocityData velocity{};
+    XrSpaceVelocities velocities{XR_TYPE_SPACE_VELOCITIES, sentinel, 1, &velocity};
+    XrSpaceLocations locations{XR_TYPE_SPACE_LOCATIONS, &velocities, 1, &data};
+    XrSpacesLocateInfo info{XR_TYPE_SPACES_LOCATE_INFO, sentinel, XR_NULL_HANDLE, 123, 1, &space};
+    CHECK(locate(fakeLocate, XR_NULL_HANDLE, &info, &locations) == XR_SUCCESS);
+    CHECK(data.pose.position.x == 42 && velocity.linearVelocity.y == 7);
+    CHECK(info.next == sentinel && locations.next == &velocities && velocities.next == sentinel);
+    CHECK(info.type == XR_TYPE_SPACES_LOCATE_INFO && locations.type == XR_TYPE_SPACE_LOCATIONS && velocities.type == XR_TYPE_SPACE_VELOCITIES);
+    CHECK(locate(fakeLocate, XR_NULL_HANDLE, nullptr, &locations) == XR_ERROR_VALIDATION_FAILURE);
+    std::cout << "All version, extension, path/profile and locate-chain checks passed\n";
+}

frame/openxr-compat/tests/dispatch_tests.cpp

@@ -0,0 +1,134 @@
+// Compile the actual layer with host-only JNI/logging shims, and a fake next
+// layer. This exercises ABI routing without a runtime or a headset.
+#include "../layer.cpp"
+#include <cstdlib>
+#include <iostream>
+#define CHECK(expr) do { if (!(expr)) { std::cerr << __LINE__ << ": " #expr "\n"; std::exit(1); } } while (false)
+namespace {
+uintptr_t serial = 100;
+frame::Names seenExtensions;
+XrVersion seenVersion{};
+XrApiLayerNextInfo* seenNext{};
+int suggestionCalls{}, locateCalls{}, realThreadCalls{};
+bool nativeThread{};
+std::unordered_map<XrPath, std::string> paths;
+XrResult XRAPI_CALL fakeEnumerate(const char*, uint32_t capacity, uint32_t* count, XrExtensionProperties* out) {
+    const char* extensions[] = {"XR_KHR_locate_spaces", "XR_EXT_palm_pose", frame::stubs[0]};
+    *count = nativeThread ? 3 : 2;
+    if (!capacity) return XR_SUCCESS;
+    if (capacity < *count) return XR_ERROR_SIZE_INSUFFICIENT;
+    for (uint32_t j = 0; j < *count; ++j) { std::strcpy(out[j].extensionName, extensions[j]); out[j].extensionVersion = 1; }
+    return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeCreate(const XrInstanceCreateInfo* in, const XrApiLayerCreateInfo* layer, XrInstance* i) {
+    seenVersion = in->applicationInfo.apiVersion; seenNext = layer->nextInfo;
+    seenExtensions.clear();
+    for (uint32_t j = 0; j < in->enabledExtensionCount; ++j) seenExtensions.emplace_back(in->enabledExtensionNames[j]);
+    if (frame::has(seenExtensions, "XR_MISSING_test")) return XR_ERROR_EXTENSION_NOT_PRESENT;
+    *i = reinterpret_cast<XrInstance>(++serial); return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeDestroy(XrInstance) { return XR_SUCCESS; }
+XrResult XRAPI_CALL fakeCreateSession(XrInstance, const XrSessionCreateInfo*, XrSession* s) {
+    *s = reinterpret_cast<XrSession>(++serial); return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeDestroySession(XrSession) { return XR_SUCCESS; }
+XrResult XRAPI_CALL fakeString(XrInstance, const char* text, XrPath* p) {
+    *p = ++serial; paths[*p] = text; return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakePath(XrInstance, XrPath p, uint32_t cap, uint32_t* count, char* out) {
+    if (!paths.count(p)) return XR_ERROR_PATH_INVALID;
+    *count = static_cast<uint32_t>(paths[p].size() + 1);
+    if (!cap) return XR_SUCCESS;
+    if (cap < *count) return XR_ERROR_SIZE_INSUFFICIENT;
+    std::strcpy(out, paths[p].c_str()); return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeSuggest(XrInstance, const XrInteractionProfileSuggestedBinding* info) {
+    ++suggestionCalls;
+    if (info->countSuggestedBindings) CHECK(paths[info->suggestedBindings[0].binding] == "/user/hand/left/input/palm_ext/pose");
+    return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeLocate(XrSession, const XrSpacesLocateInfo*, XrSpaceLocations*) { ++locateCalls; return XR_SUCCESS; }
+XrResult XRAPI_CALL fakeThread(XrSession, XrAndroidThreadTypeKHR, uint32_t) { ++realThreadCalls; return XR_TIMEOUT_EXPIRED; }
+XrResult XRAPI_CALL fakeProperties(XrInstance, XrInstanceProperties*) { return XR_SUCCESS; }
+XrResult XRAPI_CALL fakeGipa(XrInstance, const char* n, PFN_xrVoidFunction* out) {
+#define MAP(name, f) if (!std::strcmp(n, name)) { *out = reinterpret_cast<PFN_xrVoidFunction>(f); return XR_SUCCESS; }
+    MAP("xrEnumerateInstanceExtensionProperties", fakeEnumerate)
+    MAP("xrDestroyInstance", fakeDestroy)
+    MAP("xrCreateSession", fakeCreateSession) MAP("xrDestroySession", fakeDestroySession)
+    MAP("xrStringToPath", fakeString) MAP("xrPathToString", fakePath)
+    MAP("xrSuggestInteractionProfileBindings", fakeSuggest) MAP("xrLocateSpacesKHR", fakeLocate)
+    MAP("xrSetAndroidApplicationThreadKHR", fakeThread) MAP("xrGetInstanceProperties", fakeProperties)
+#undef MAP
+    *out = nullptr; return XR_ERROR_FUNCTION_UNSUPPORTED;
+}
+}
+int main() {
+    XrNegotiateLoaderInfo loader{XR_LOADER_INTERFACE_STRUCT_LOADER_INFO, 1, sizeof(XrNegotiateLoaderInfo), 1, 1,
+                                XR_MAKE_VERSION(1,0,0), XR_MAKE_VERSION(1,1023,4095)};
+    XrNegotiateApiLayerRequest request{};
+    request.structType = XR_LOADER_INTERFACE_STRUCT_API_LAYER_REQUEST; request.structVersion = 1; request.structSize = sizeof(request);
+    CHECK(xrNegotiateLoaderApiLayerInterface(&loader, frame::layerName, &request) == XR_SUCCESS);
+    CHECK(request.getInstanceProcAddr && request.createApiLayerInstance);
+    loader.maxApiVersion = XR_MAKE_VERSION(1,1,0);
+    CHECK(xrNegotiateLoaderApiLayerInterface(&loader, frame::layerName, &request) == XR_SUCCESS);
+    CHECK(request.layerApiVersion == loader.maxApiVersion);
+    loader.maxApiVersion = XR_MAKE_VERSION(1,0,99);
+    CHECK(xrNegotiateLoaderApiLayerInterface(&loader, frame::layerName, &request) == XR_ERROR_INITIALIZATION_FAILED);
+    loader.maxApiVersion = XR_MAKE_VERSION(1,1023,4095);
+    CHECK(xrNegotiateLoaderApiLayerInterface(&loader, "wrong", &request) == XR_ERROR_INITIALIZATION_FAILED);
+    XrApiLayerNextInfo tail{};
+    XrApiLayerNextInfo next{XR_LOADER_INTERFACE_STRUCT_API_LAYER_NEXT_INFO, 1, sizeof(XrApiLayerNextInfo), {}, fakeGipa, fakeCreate, &tail};
+    XrApiLayerCreateInfo layer{XR_LOADER_INTERFACE_STRUCT_API_LAYER_CREATE_INFO, 1, sizeof(XrApiLayerCreateInfo), nullptr, {}, &next};
+    XrInstanceCreateInfo info{XR_TYPE_INSTANCE_CREATE_INFO, nullptr, 0, {}, 0, nullptr, 2, frame::stubs};
+    info.applicationInfo.apiVersion = XR_MAKE_VERSION(1,1,999);
+    XrInstance a{}, b{};
+    CHECK(createLayer(&info, &layer, &a) == XR_SUCCESS);
+    CHECK(seenVersion == XR_API_VERSION_1_0 && info.applicationInfo.apiVersion == XR_MAKE_VERSION(1,1,999));
+    CHECK(seenNext == &tail && layer.nextInfo == &next);
+    CHECK(!frame::has(seenExtensions, frame::stubs[0]) && frame::has(seenExtensions, "XR_KHR_locate_spaces"));
+    XrSession sa{}, sb{};
+    CHECK(createSession(a, nullptr, &sa) == XR_SUCCESS);
+    CHECK(threadSettings(sa, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, 1) == XR_SUCCESS);
+    nativeThread = true;
+    CHECK(createLayer(&info, &layer, &b) == XR_SUCCESS);
+    CHECK(frame::has(seenExtensions, frame::stubs[0]));
+    CHECK(createSession(b, nullptr, &sb) == XR_SUCCESS);
+    PFN_xrVoidFunction fn{};
+    CHECK(gipa(b, "xrSetAndroidApplicationThreadKHR", &fn) == XR_SUCCESS);
+    CHECK(reinterpret_cast<PFN_xrSetAndroidApplicationThreadKHR>(fn)(sb, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, 1) == XR_TIMEOUT_EXPIRED);
+    CHECK(realThreadCalls == 1);
+    CHECK(threadSettings(sa, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, 1) == XR_SUCCESS);
+    CHECK(gipa(a, "xrGetInstanceProperties", &fn) == XR_SUCCESS && fn == reinterpret_cast<PFN_xrVoidFunction>(fakeProperties));
+    CHECK(gipa(a, "xrLocateSpaces", &fn) == XR_SUCCESS);
+    XrSpacesLocateInfo locateInfo{XR_TYPE_SPACES_LOCATE_INFO, nullptr, XR_NULL_HANDLE, 1, 0, nullptr};
+    XrSpaceLocations locations{XR_TYPE_SPACE_LOCATIONS, nullptr, 0, nullptr};
+    CHECK(reinterpret_cast<PFN_xrLocateSpaces>(fn)(sa, &locateInfo, &locations) == XR_SUCCESS && locateCalls == 1);
+    XrPath binding{}, profile{};
+    CHECK(stringToPath(a, "/user/hand/left/input/grip_surface/pose", &binding) == XR_SUCCESS);
+    CHECK(paths[binding] == "/user/hand/left/input/palm_ext/pose");
+    fakeString(a, "/user/hand/left/input/grip_surface/pose", &binding); // preexisting path: rewrite in suggest too
+    fakeString(a, "/interaction_profiles/oculus/touch_controller", &profile);
+    XrActionSuggestedBinding action{XR_NULL_HANDLE, binding};
+    XrInteractionProfileSuggestedBinding suggested{XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING, nullptr, profile, 1, &action};
+    CHECK(suggest(a, &suggested) == XR_SUCCESS && suggestionCalls == 1);
+    CHECK(paths[action.binding] == "/user/hand/left/input/grip_surface/pose");
+    fakeString(a, "/interaction_profiles/meta/touch_pro_controller", &suggested.interactionProfile);
+    CHECK(suggest(a, &suggested) == XR_SUCCESS && suggestionCalls == 1);
+    uint32_t count{};
+    CHECK(enumerate(frame::layerName, 0, &count, nullptr) == XR_SUCCESS && count == 2);
+    XrExtensionProperties props[2]{{XR_TYPE_EXTENSION_PROPERTIES, nullptr, {}, 0}, {XR_TYPE_EXTENSION_PROPERTIES, nullptr, {}, 0}};
+    CHECK(enumerate(frame::layerName, 1, &count, props) == XR_ERROR_SIZE_INSUFFICIENT);
+    CHECK(enumerate(frame::layerName, 2, &count, props) == XR_SUCCESS && count == 2);
+    CHECK(enumerate(nullptr, 0, &count, nullptr) == XR_SUCCESS && count == 4);
+    const char* missing = "XR_MISSING_test";
+    info.enabledExtensionCount = 1; info.enabledExtensionNames = &missing;
+    XrInstance failed{};
+    CHECK(createLayer(&info, &layer, &failed) == XR_ERROR_EXTENSION_NOT_PRESENT && failed == XR_NULL_HANDLE);
+    CHECK(destroySession(sa) == XR_SUCCESS);
+    CHECK(threadSettings(sa, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, 1) == XR_ERROR_HANDLE_INVALID);
+    CHECK(destroyInstance(a) == XR_SUCCESS);
+    CHECK(get(sb) && !get(a));
+    CHECK(destroyInstance(b) == XR_SUCCESS && !get(sb));
+    CHECK(instances.empty() && sessions.empty() && enumerateNext == nullptr);
+    std::cout << "Negotiation, next-layer chaining, multi-instance dispatch, stubs, forwarding and cleanup passed\n";
+}

frame/openxr-compat/tests/shims/android/log.h

@@ -0,0 +1,9 @@
+#pragma once
+// Host-only logcat replacement. Android builds use the NDK header and liblog.
+#include <cstdarg>
+#include <cstdio>
+#define ANDROID_LOG_INFO 4
+inline int __android_log_print(int, const char*, const char* fmt, ...) {
+    va_list args; va_start(args, fmt); auto r = std::vfprintf(stderr, fmt, args);
+    va_end(args); std::fputc('\n', stderr); return r;
+}

frame/openxr-compat/tests/shims/jni.h

@@ -0,0 +1,3 @@
+#pragma once
+// Only the opaque jobject declaration is needed by openxr_platform.h.
+typedef void* jobject;

frame/openxr-compat/vendor/LICENSE

@@ -0,0 +1,208 @@
+Apache License
+
+Version 2.0, January 2004
+
+http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION,
+AND DISTRIBUTION
+
+   1. Definitions.
+
+
+
+"License" shall mean the terms and conditions for use, reproduction, and distribution
+as defined by Sections 1 through 9 of this document.
+
+
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct
+or indirect, to cause the direction or management of such entity, whether
+by contract or otherwise, or (ii) ownership of fifty percent (50%) or more
+of the outstanding shares, or (iii) beneficial ownership of such entity.
+
+
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising permissions
+granted by this License.
+
+
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+
+
+"Object" form shall mean any form resulting from mechanical transformation
+or translation of a Source form, including but not limited to compiled object
+code, generated documentation, and conversions to other media types.
+
+
+
+"Work" shall mean the work of authorship, whether in Source or Object form,
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frame/openxr-compat/vendor/loader_interfaces.h

@@ -0,0 +1,114 @@
+// Copyright (c) 2017-2023, The Khronos Group Inc.
+// Copyright (c) 2017 Valve Corporation
+// Copyright (c) 2017 LunarG, Inc.
+//
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+//
+// Initial Author: Mark Young <marky@lunarg.com>
+//
+
+#pragma once
+
+#include <openxr/openxr.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Forward declare.
+typedef struct XrApiLayerCreateInfo XrApiLayerCreateInfo;
+
+// Function pointer prototype for the xrCreateApiLayerInstance function used in place of xrCreateInstance.
+// This function allows us to pass special API layer information to each layer during the process of creating an Instance.
+typedef XrResult(XRAPI_PTR *PFN_xrCreateApiLayerInstance)(const XrInstanceCreateInfo *info,
+                                                          const XrApiLayerCreateInfo *apiLayerInfo, XrInstance *instance);
+
+// Loader/API Layer Interface versions
+//  1 - First version, introduces negotiation structure and functions
+#define XR_CURRENT_LOADER_API_LAYER_VERSION 1
+
+// Loader/Runtime Interface versions
+//  1 - First version, introduces negotiation structure and functions
+#define XR_CURRENT_LOADER_RUNTIME_VERSION 1
+
+// Version negotiation values
+typedef enum XrLoaderInterfaceStructs {
+    XR_LOADER_INTERFACE_STRUCT_UNINTIALIZED = 0,
+    XR_LOADER_INTERFACE_STRUCT_LOADER_INFO,
+    XR_LOADER_INTERFACE_STRUCT_API_LAYER_REQUEST,
+    XR_LOADER_INTERFACE_STRUCT_RUNTIME_REQUEST,
+    XR_LOADER_INTERFACE_STRUCT_API_LAYER_CREATE_INFO,
+    XR_LOADER_INTERFACE_STRUCT_API_LAYER_NEXT_INFO,
+} XrLoaderInterfaceStructs;
+
+#define XR_LOADER_INFO_STRUCT_VERSION 1
+typedef struct XrNegotiateLoaderInfo {
+    XrLoaderInterfaceStructs structType;  // XR_LOADER_INTERFACE_STRUCT_LOADER_INFO
+    uint32_t structVersion;               // XR_LOADER_INFO_STRUCT_VERSION
+    size_t structSize;                    // sizeof(XrNegotiateLoaderInfo)
+    uint32_t minInterfaceVersion;
+    uint32_t maxInterfaceVersion;
+    XrVersion minApiVersion;
+    XrVersion maxApiVersion;
+} XrNegotiateLoaderInfo;
+
+#define XR_API_LAYER_INFO_STRUCT_VERSION 1
+typedef struct XrNegotiateApiLayerRequest {
+    XrLoaderInterfaceStructs structType;  // XR_LOADER_INTERFACE_STRUCT_API_LAYER_REQUEST
+    uint32_t structVersion;               // XR_API_LAYER_INFO_STRUCT_VERSION
+    size_t structSize;                    // sizeof(XrNegotiateApiLayerRequest)
+    uint32_t layerInterfaceVersion;       // CURRENT_LOADER_API_LAYER_VERSION
+    XrVersion layerApiVersion;
+    PFN_xrGetInstanceProcAddr getInstanceProcAddr;
+    PFN_xrCreateApiLayerInstance createApiLayerInstance;
+} XrNegotiateApiLayerRequest;
+
+#define XR_RUNTIME_INFO_STRUCT_VERSION 1
+typedef struct XrNegotiateRuntimeRequest {
+    XrLoaderInterfaceStructs structType;  // XR_LOADER_INTERFACE_STRUCT_RUNTIME_REQUEST
+    uint32_t structVersion;               // XR_RUNTIME_INFO_STRUCT_VERSION
+    size_t structSize;                    // sizeof(XrNegotiateRuntimeRequest)
+    uint32_t runtimeInterfaceVersion;     // CURRENT_LOADER_RUNTIME_VERSION
+    XrVersion runtimeApiVersion;
+    PFN_xrGetInstanceProcAddr getInstanceProcAddr;
+} XrNegotiateRuntimeRequest;
+
+// Function used to negotiate an interface betewen the loader and an API layer.  Each library exposing one or
+// more API layers needs to expose at least this function.
+typedef XrResult(XRAPI_PTR *PFN_xrNegotiateLoaderApiLayerInterface)(const XrNegotiateLoaderInfo *loaderInfo,
+                                                                    const char *apiLayerName,
+                                                                    XrNegotiateApiLayerRequest *apiLayerRequest);
+
+// Function used to negotiate an interface betewen the loader and a runtime.  Each runtime should expose
+// at least this function.
+typedef XrResult(XRAPI_PTR *PFN_xrNegotiateLoaderRuntimeInterface)(const XrNegotiateLoaderInfo *loaderInfo,
+                                                                   XrNegotiateRuntimeRequest *runtimeRequest);
+
+// Forward declare.
+typedef struct XrApiLayerNextInfo XrApiLayerNextInfo;
+
+#define XR_API_LAYER_NEXT_INFO_STRUCT_VERSION 1
+struct XrApiLayerNextInfo {
+    XrLoaderInterfaceStructs structType;                      // XR_LOADER_INTERFACE_STRUCT_API_LAYER_NEXT_INFO
+    uint32_t structVersion;                                   // XR_API_LAYER_NEXT_INFO_STRUCT_VERSION
+    size_t structSize;                                        // sizeof(XrApiLayerNextInfo)
+    char layerName[XR_MAX_API_LAYER_NAME_SIZE];               // Name of API layer which should receive this info
+    PFN_xrGetInstanceProcAddr nextGetInstanceProcAddr;        // Pointer to next API layer's xrGetInstanceProcAddr
+    PFN_xrCreateApiLayerInstance nextCreateApiLayerInstance;  // Pointer to next API layer's xrCreateApiLayerInstance
+    XrApiLayerNextInfo *next;                                 // Pointer to the next API layer info in the sequence
+};
+
+#define XR_API_LAYER_MAX_SETTINGS_PATH_SIZE 512
+#define XR_API_LAYER_CREATE_INFO_STRUCT_VERSION 1
+typedef struct XrApiLayerCreateInfo {
+    XrLoaderInterfaceStructs structType;                               // XR_LOADER_INTERFACE_STRUCT_API_LAYER_CREATE_INFO
+    uint32_t structVersion;                                            // XR_API_LAYER_CREATE_INFO_STRUCT_VERSION
+    size_t structSize;                                                 // sizeof(XrApiLayerCreateInfo)
+    void *loaderInstance;                                              // Pointer to the LoaderInstance class
+    char settings_file_location[XR_API_LAYER_MAX_SETTINGS_PATH_SIZE];  // Location to the found settings file (or empty '\0')
+    XrApiLayerNextInfo *nextInfo;                                      // Pointer to the next API layer's Info
+} XrApiLayerCreateInfo;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif

frame/openxr-compat/vendor/openxr/openxr_platform.h

@@ -0,0 +1,819 @@
+#ifndef OPENXR_PLATFORM_H_
+#define OPENXR_PLATFORM_H_ 1
+
+/*
+** Copyright 2017-2026 The Khronos Group Inc.
+**
+** SPDX-License-Identifier: Apache-2.0 OR MIT
+*/
+
+/*
+** This header is generated from the Khronos OpenXR XML API Registry.
+**
+*/
+
+#include "openxr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_KHR_android_thread_settings is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_android_thread_settings 1
+#define XR_KHR_android_thread_settings_SPEC_VERSION 6
+#define XR_KHR_ANDROID_THREAD_SETTINGS_EXTENSION_NAME "XR_KHR_android_thread_settings"
+
+typedef enum XrAndroidThreadTypeKHR {
+    XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR = 1,
+    XR_ANDROID_THREAD_TYPE_APPLICATION_WORKER_KHR = 2,
+    XR_ANDROID_THREAD_TYPE_RENDERER_MAIN_KHR = 3,
+    XR_ANDROID_THREAD_TYPE_RENDERER_WORKER_KHR = 4,
+    XR_ANDROID_THREAD_TYPE_MAX_ENUM_KHR = 0x7FFFFFFF
+} XrAndroidThreadTypeKHR;
+typedef XrResult (XRAPI_PTR *PFN_xrSetAndroidApplicationThreadKHR)(XrSession session, XrAndroidThreadTypeKHR threadType, uint32_t threadId);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrSetAndroidApplicationThreadKHR(
+    XrSession                                   session,
+    XrAndroidThreadTypeKHR                      threadType,
+    uint32_t                                    threadId);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_KHR_android_surface_swapchain is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_android_surface_swapchain 1
+#define XR_KHR_android_surface_swapchain_SPEC_VERSION 4
+#define XR_KHR_ANDROID_SURFACE_SWAPCHAIN_EXTENSION_NAME "XR_KHR_android_surface_swapchain"
+typedef XrResult (XRAPI_PTR *PFN_xrCreateSwapchainAndroidSurfaceKHR)(XrSession session, const XrSwapchainCreateInfo* info, XrSwapchain* swapchain, jobject* surface);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateSwapchainAndroidSurfaceKHR(
+    XrSession                                   session,
+    const XrSwapchainCreateInfo*                info,
+    XrSwapchain*                                swapchain,
+    jobject*                                    surface);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_KHR_android_create_instance is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_android_create_instance 1
+#define XR_KHR_android_create_instance_SPEC_VERSION 3
+#define XR_KHR_ANDROID_CREATE_INSTANCE_EXTENSION_NAME "XR_KHR_android_create_instance"
+// XrInstanceCreateInfoAndroidKHR extends XrInstanceCreateInfo
+typedef struct XrInstanceCreateInfoAndroidKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS          applicationVM;
+    void* XR_MAY_ALIAS          applicationActivity;
+} XrInstanceCreateInfoAndroidKHR;
+
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_KHR_vulkan_swapchain_format_list is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_vulkan_swapchain_format_list 1
+#define XR_KHR_vulkan_swapchain_format_list_SPEC_VERSION 5
+#define XR_KHR_VULKAN_SWAPCHAIN_FORMAT_LIST_EXTENSION_NAME "XR_KHR_vulkan_swapchain_format_list"
+// XrVulkanSwapchainFormatListCreateInfoKHR extends XrSwapchainCreateInfo
+typedef struct XrVulkanSwapchainFormatListCreateInfoKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    uint32_t                    viewFormatCount;
+    const VkFormat*             viewFormats;
+} XrVulkanSwapchainFormatListCreateInfoKHR;
+
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_GRAPHICS_API_OPENGL
+
+// XR_KHR_opengl_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_opengl_enable 1
+#define XR_KHR_opengl_enable_SPEC_VERSION 12
+#define XR_KHR_OPENGL_ENABLE_EXTENSION_NAME "XR_KHR_opengl_enable"
+#ifdef XR_USE_PLATFORM_WIN32
+// XrGraphicsBindingOpenGLWin32KHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLWin32KHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    HDC                         hDC;
+    HGLRC                       hGLRC;
+} XrGraphicsBindingOpenGLWin32KHR;
+#endif // XR_USE_PLATFORM_WIN32
+
+#ifdef XR_USE_PLATFORM_XLIB
+// XrGraphicsBindingOpenGLXlibKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLXlibKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    Display*                    xDisplay;
+    uint32_t                    visualid;
+    GLXFBConfig                 glxFBConfig;
+    GLXDrawable                 glxDrawable;
+    GLXContext                  glxContext;
+} XrGraphicsBindingOpenGLXlibKHR;
+#endif // XR_USE_PLATFORM_XLIB
+
+#ifdef XR_USE_PLATFORM_XCB
+// XrGraphicsBindingOpenGLXcbKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLXcbKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    xcb_connection_t*           connection;
+    uint32_t                    screenNumber;
+    xcb_glx_fbconfig_t          fbconfigid;
+    xcb_visualid_t              visualid;
+    xcb_glx_drawable_t          glxDrawable;
+    xcb_glx_context_t           glxContext;
+} XrGraphicsBindingOpenGLXcbKHR;
+#endif // XR_USE_PLATFORM_XCB
+
+#ifdef XR_USE_PLATFORM_WAYLAND
+// XrGraphicsBindingOpenGLWaylandKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLWaylandKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    struct wl_display*          display;
+} XrGraphicsBindingOpenGLWaylandKHR;
+#endif // XR_USE_PLATFORM_WAYLAND
+
+typedef struct XrSwapchainImageOpenGLKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    uint32_t              image;
+} XrSwapchainImageOpenGLKHR;
+
+typedef struct XrGraphicsRequirementsOpenGLKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    XrVersion             minApiVersionSupported;
+    XrVersion             maxApiVersionSupported;
+} XrGraphicsRequirementsOpenGLKHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetOpenGLGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsOpenGLKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetOpenGLGraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsOpenGLKHR*            graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_OPENGL */
+
+#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
+
+// XR_KHR_opengl_es_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_opengl_es_enable 1
+#define XR_KHR_opengl_es_enable_SPEC_VERSION 10
+#define XR_KHR_OPENGL_ES_ENABLE_EXTENSION_NAME "XR_KHR_opengl_es_enable"
+#ifdef XR_USE_PLATFORM_ANDROID
+// XrGraphicsBindingOpenGLESAndroidKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLESAndroidKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    EGLDisplay                  display;
+    EGLConfig                   config;
+    EGLContext                  context;
+} XrGraphicsBindingOpenGLESAndroidKHR;
+#endif // XR_USE_PLATFORM_ANDROID
+
+typedef struct XrSwapchainImageOpenGLESKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    uint32_t              image;
+} XrSwapchainImageOpenGLESKHR;
+
+typedef struct XrGraphicsRequirementsOpenGLESKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    XrVersion             minApiVersionSupported;
+    XrVersion             maxApiVersionSupported;
+} XrGraphicsRequirementsOpenGLESKHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetOpenGLESGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsOpenGLESKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetOpenGLESGraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsOpenGLESKHR*          graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_OPENGL_ES */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_KHR_vulkan_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_vulkan_enable 1
+#define XR_KHR_vulkan_enable_SPEC_VERSION 10
+#define XR_KHR_VULKAN_ENABLE_EXTENSION_NAME "XR_KHR_vulkan_enable"
+// XrGraphicsBindingVulkanKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingVulkanKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    VkInstance                  instance;
+    VkPhysicalDevice            physicalDevice;
+    VkDevice                    device;
+    uint32_t                    queueFamilyIndex;
+    uint32_t                    queueIndex;
+} XrGraphicsBindingVulkanKHR;
+
+typedef struct XrSwapchainImageVulkanKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    VkImage               image;
+} XrSwapchainImageVulkanKHR;
+
+typedef struct XrGraphicsRequirementsVulkanKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    XrVersion             minApiVersionSupported;
+    XrVersion             maxApiVersionSupported;
+} XrGraphicsRequirementsVulkanKHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanInstanceExtensionsKHR)(XrInstance instance, XrSystemId systemId, uint32_t bufferCapacityInput, uint32_t* bufferCountOutput, char* buffer);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanDeviceExtensionsKHR)(XrInstance instance, XrSystemId systemId, uint32_t bufferCapacityInput, uint32_t* bufferCountOutput, char* buffer);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsDeviceKHR)(XrInstance instance, XrSystemId systemId, VkInstance vkInstance, VkPhysicalDevice* vkPhysicalDevice);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsVulkanKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanInstanceExtensionsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    uint32_t                                    bufferCapacityInput,
+    uint32_t*                                   bufferCountOutput,
+    char*                                       buffer);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanDeviceExtensionsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    uint32_t                                    bufferCapacityInput,
+    uint32_t*                                   bufferCountOutput,
+    char*                                       buffer);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsDeviceKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    VkInstance                                  vkInstance,
+    VkPhysicalDevice*                           vkPhysicalDevice);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsVulkanKHR*            graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_GRAPHICS_API_D3D11
+
+// XR_KHR_D3D11_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_D3D11_enable 1
+#define XR_KHR_D3D11_enable_SPEC_VERSION  11
+#define XR_KHR_D3D11_ENABLE_EXTENSION_NAME "XR_KHR_D3D11_enable"
+// XrGraphicsBindingD3D11KHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingD3D11KHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    ID3D11Device*               device;
+} XrGraphicsBindingD3D11KHR;
+
+typedef struct XrSwapchainImageD3D11KHR {
+     XrStructureType      type;
+    void* XR_MAY_ALIAS    next;
+    ID3D11Texture2D*      texture;
+} XrSwapchainImageD3D11KHR;
+
+typedef struct XrGraphicsRequirementsD3D11KHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    LUID                  adapterLuid;
+    D3D_FEATURE_LEVEL     minFeatureLevel;
+} XrGraphicsRequirementsD3D11KHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetD3D11GraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsD3D11KHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetD3D11GraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsD3D11KHR*             graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_D3D11 */
+
+#ifdef XR_USE_GRAPHICS_API_D3D12
+
+// XR_KHR_D3D12_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_D3D12_enable 1
+#define XR_KHR_D3D12_enable_SPEC_VERSION  11
+#define XR_KHR_D3D12_ENABLE_EXTENSION_NAME "XR_KHR_D3D12_enable"
+// XrGraphicsBindingD3D12KHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingD3D12KHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    ID3D12Device*               device;
+    ID3D12CommandQueue*         queue;
+} XrGraphicsBindingD3D12KHR;
+
+typedef struct XrSwapchainImageD3D12KHR {
+     XrStructureType      type;
+    void* XR_MAY_ALIAS    next;
+    ID3D12Resource*       texture;
+} XrSwapchainImageD3D12KHR;
+
+typedef struct XrGraphicsRequirementsD3D12KHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    LUID                  adapterLuid;
+    D3D_FEATURE_LEVEL     minFeatureLevel;
+} XrGraphicsRequirementsD3D12KHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetD3D12GraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsD3D12KHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetD3D12GraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsD3D12KHR*             graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_D3D12 */
+
+#ifdef XR_USE_GRAPHICS_API_METAL
+
+// XR_KHR_metal_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_metal_enable 1
+#define XR_KHR_metal_enable_SPEC_VERSION  3
+#define XR_KHR_METAL_ENABLE_EXTENSION_NAME "XR_KHR_metal_enable"
+// XrGraphicsBindingMetalKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingMetalKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS          commandQueue;
+} XrGraphicsBindingMetalKHR;
+
+typedef struct XrSwapchainImageMetalKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS    texture;
+} XrSwapchainImageMetalKHR;
+
+typedef struct XrGraphicsRequirementsMetalKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS    metalDevice;
+} XrGraphicsRequirementsMetalKHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetMetalGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsMetalKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetMetalGraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsMetalKHR*             graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_METAL */
+
+#ifdef XR_USE_PLATFORM_WIN32
+
+// XR_KHR_win32_convert_performance_counter_time is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_win32_convert_performance_counter_time 1
+#define XR_KHR_win32_convert_performance_counter_time_SPEC_VERSION 1
+#define XR_KHR_WIN32_CONVERT_PERFORMANCE_COUNTER_TIME_EXTENSION_NAME "XR_KHR_win32_convert_performance_counter_time"
+typedef XrResult (XRAPI_PTR *PFN_xrConvertWin32PerformanceCounterToTimeKHR)(XrInstance instance, const LARGE_INTEGER* performanceCounter, XrTime* time);
+typedef XrResult (XRAPI_PTR *PFN_xrConvertTimeToWin32PerformanceCounterKHR)(XrInstance instance, XrTime time, LARGE_INTEGER* performanceCounter);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrConvertWin32PerformanceCounterToTimeKHR(
+    XrInstance                                  instance,
+    const LARGE_INTEGER*                        performanceCounter,
+    XrTime*                                     time);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimeToWin32PerformanceCounterKHR(
+    XrInstance                                  instance,
+    XrTime                                      time,
+    LARGE_INTEGER*                              performanceCounter);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_WIN32 */
+
+#ifdef XR_USE_TIMESPEC
+
+// XR_KHR_convert_timespec_time is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_convert_timespec_time 1
+#define XR_KHR_convert_timespec_time_SPEC_VERSION 1
+#define XR_KHR_CONVERT_TIMESPEC_TIME_EXTENSION_NAME "XR_KHR_convert_timespec_time"
+typedef XrResult (XRAPI_PTR *PFN_xrConvertTimespecTimeToTimeKHR)(XrInstance instance, const struct timespec* timespecTime, XrTime* time);
+typedef XrResult (XRAPI_PTR *PFN_xrConvertTimeToTimespecTimeKHR)(XrInstance instance, XrTime time, struct timespec* timespecTime);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimespecTimeToTimeKHR(
+    XrInstance                                  instance,
+    const struct timespec*                      timespecTime,
+    XrTime*                                     time);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimeToTimespecTimeKHR(
+    XrInstance                                  instance,
+    XrTime                                      time,
+    struct timespec*                            timespecTime);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_TIMESPEC */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_KHR_loader_init_android is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_loader_init_android 1
+#define XR_KHR_loader_init_android_SPEC_VERSION 1
+#define XR_KHR_LOADER_INIT_ANDROID_EXTENSION_NAME "XR_KHR_loader_init_android"
+typedef struct XrLoaderInitInfoAndroidKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS          applicationVM;
+    void* XR_MAY_ALIAS          applicationContext;
+} XrLoaderInitInfoAndroidKHR;
+
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_KHR_vulkan_enable2 is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_vulkan_enable2 1
+#define XR_KHR_vulkan_enable2_SPEC_VERSION 4
+#define XR_KHR_VULKAN_ENABLE2_EXTENSION_NAME "XR_KHR_vulkan_enable2"
+typedef XrFlags64 XrVulkanInstanceCreateFlagsKHR;
+
+// Flag bits for XrVulkanInstanceCreateFlagsKHR
+
+typedef XrFlags64 XrVulkanDeviceCreateFlagsKHR;
+
+// Flag bits for XrVulkanDeviceCreateFlagsKHR
+
+typedef struct XrVulkanInstanceCreateInfoKHR {
+    XrStructureType                   type;
+    const void* XR_MAY_ALIAS          next;
+    XrSystemId                        systemId;
+    XrVulkanInstanceCreateFlagsKHR    createFlags;
+    PFN_vkGetInstanceProcAddr         pfnGetInstanceProcAddr;
+    const VkInstanceCreateInfo*       vulkanCreateInfo;
+    const VkAllocationCallbacks*      vulkanAllocator;
+} XrVulkanInstanceCreateInfoKHR;
+
+typedef struct XrVulkanDeviceCreateInfoKHR {
+    XrStructureType                 type;
+    const void* XR_MAY_ALIAS        next;
+    XrSystemId                      systemId;
+    XrVulkanDeviceCreateFlagsKHR    createFlags;
+    PFN_vkGetInstanceProcAddr       pfnGetInstanceProcAddr;
+    VkPhysicalDevice                vulkanPhysicalDevice;
+    const VkDeviceCreateInfo*       vulkanCreateInfo;
+    const VkAllocationCallbacks*    vulkanAllocator;
+} XrVulkanDeviceCreateInfoKHR;
+
+typedef XrGraphicsBindingVulkanKHR XrGraphicsBindingVulkan2KHR;
+
+typedef struct XrVulkanGraphicsDeviceGetInfoKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    XrSystemId                  systemId;
+    VkInstance                  vulkanInstance;
+} XrVulkanGraphicsDeviceGetInfoKHR;
+
+typedef XrSwapchainImageVulkanKHR XrSwapchainImageVulkan2KHR;
+
+typedef XrGraphicsRequirementsVulkanKHR XrGraphicsRequirementsVulkan2KHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrCreateVulkanInstanceKHR)(XrInstance instance, const XrVulkanInstanceCreateInfoKHR* createInfo, VkInstance* vulkanInstance, VkResult* vulkanResult);
+typedef XrResult (XRAPI_PTR *PFN_xrCreateVulkanDeviceKHR)(XrInstance instance, const XrVulkanDeviceCreateInfoKHR* createInfo, VkDevice* vulkanDevice, VkResult* vulkanResult);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsDevice2KHR)(XrInstance instance, const XrVulkanGraphicsDeviceGetInfoKHR* getInfo, VkPhysicalDevice* vulkanPhysicalDevice);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsRequirements2KHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsVulkanKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateVulkanInstanceKHR(
+    XrInstance                                  instance,
+    const XrVulkanInstanceCreateInfoKHR*        createInfo,
+    VkInstance*                                 vulkanInstance,
+    VkResult*                                   vulkanResult);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateVulkanDeviceKHR(
+    XrInstance                                  instance,
+    const XrVulkanDeviceCreateInfoKHR*          createInfo,
+    VkDevice*                                   vulkanDevice,
+    VkResult*                                   vulkanResult);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsDevice2KHR(
+    XrInstance                                  instance,
+    const XrVulkanGraphicsDeviceGetInfoKHR*     getInfo,
+    VkPhysicalDevice*                           vulkanPhysicalDevice);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsRequirements2KHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsVulkanKHR*            graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_PLATFORM_EGL
+
+// XR_MNDX_egl_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_MNDX_egl_enable 1
+#define XR_MNDX_egl_enable_SPEC_VERSION   2
+#define XR_MNDX_EGL_ENABLE_EXTENSION_NAME "XR_MNDX_egl_enable"
+typedef PFN_xrVoidFunction (*PFN_xrEglGetProcAddressMNDX)(const char *name);
+// XrGraphicsBindingEGLMNDX extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingEGLMNDX {
+    XrStructureType                type;
+    const void* XR_MAY_ALIAS       next;
+    PFN_xrEglGetProcAddressMNDX    getProcAddress;
+    EGLDisplay                     display;
+    EGLConfig                      config;
+    EGLContext                     context;
+} XrGraphicsBindingEGLMNDX;
+
+#endif /* XR_USE_PLATFORM_EGL */
+
+#ifdef XR_USE_PLATFORM_WIN32
+
+// XR_MSFT_perception_anchor_interop is a preprocessor guard. Do not pass it to API calls.
+#define XR_MSFT_perception_anchor_interop 1
+#define XR_MSFT_perception_anchor_interop_SPEC_VERSION 1
+#define XR_MSFT_PERCEPTION_ANCHOR_INTEROP_EXTENSION_NAME "XR_MSFT_perception_anchor_interop"
+typedef XrResult (XRAPI_PTR *PFN_xrCreateSpatialAnchorFromPerceptionAnchorMSFT)(XrSession session, IUnknown* perceptionAnchor, XrSpatialAnchorMSFT* anchor);
+typedef XrResult (XRAPI_PTR *PFN_xrTryGetPerceptionAnchorFromSpatialAnchorMSFT)(XrSession session, XrSpatialAnchorMSFT anchor, IUnknown** perceptionAnchor);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateSpatialAnchorFromPerceptionAnchorMSFT(
+    XrSession                                   session,
+    IUnknown*                                   perceptionAnchor,
+    XrSpatialAnchorMSFT*                        anchor);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrTryGetPerceptionAnchorFromSpatialAnchorMSFT(
+    XrSession                                   session,
+    XrSpatialAnchorMSFT                         anchor,
+    IUnknown**                                  perceptionAnchor);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_WIN32 */
+
+#ifdef XR_USE_PLATFORM_WIN32
+
+// XR_MSFT_holographic_window_attachment is a preprocessor guard. Do not pass it to API calls.
+#define XR_MSFT_holographic_window_attachment 1
+#define XR_MSFT_holographic_window_attachment_SPEC_VERSION 1
+#define XR_MSFT_HOLOGRAPHIC_WINDOW_ATTACHMENT_EXTENSION_NAME "XR_MSFT_holographic_window_attachment"
+#ifdef XR_USE_PLATFORM_WIN32
+// XrHolographicWindowAttachmentMSFT extends XrSessionCreateInfo
+typedef struct XrHolographicWindowAttachmentMSFT {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    IUnknown*                   holographicSpace;
+    IUnknown*                   coreWindow;
+} XrHolographicWindowAttachmentMSFT;
+#endif // XR_USE_PLATFORM_WIN32
+
+#endif /* XR_USE_PLATFORM_WIN32 */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_FB_android_surface_swapchain_create is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_android_surface_swapchain_create 1
+#define XR_FB_android_surface_swapchain_create_SPEC_VERSION 1
+#define XR_FB_ANDROID_SURFACE_SWAPCHAIN_CREATE_EXTENSION_NAME "XR_FB_android_surface_swapchain_create"
+typedef XrFlags64 XrAndroidSurfaceSwapchainFlagsFB;
+
+// Flag bits for XrAndroidSurfaceSwapchainFlagsFB
+static const XrAndroidSurfaceSwapchainFlagsFB XR_ANDROID_SURFACE_SWAPCHAIN_SYNCHRONOUS_BIT_FB = 0x00000001;
+static const XrAndroidSurfaceSwapchainFlagsFB XR_ANDROID_SURFACE_SWAPCHAIN_USE_TIMESTAMPS_BIT_FB = 0x00000002;
+
+#ifdef XR_USE_PLATFORM_ANDROID
+// XrAndroidSurfaceSwapchainCreateInfoFB extends XrSwapchainCreateInfo
+typedef struct XrAndroidSurfaceSwapchainCreateInfoFB {
+    XrStructureType                     type;
+    const void* XR_MAY_ALIAS            next;
+    XrAndroidSurfaceSwapchainFlagsFB    createFlags;
+} XrAndroidSurfaceSwapchainCreateInfoFB;
+#endif // XR_USE_PLATFORM_ANDROID
+
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_PLATFORM_ML
+
+// XR_ML_compat is a preprocessor guard. Do not pass it to API calls.
+#define XR_ML_compat 1
+#define XR_ML_compat_SPEC_VERSION         1
+#define XR_ML_COMPAT_EXTENSION_NAME       "XR_ML_compat"
+typedef struct XrCoordinateSpaceCreateInfoML {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    MLCoordinateFrameUID        cfuid;
+    XrPosef                     poseInCoordinateSpace;
+} XrCoordinateSpaceCreateInfoML;
+
+typedef XrResult (XRAPI_PTR *PFN_xrCreateSpaceFromCoordinateFrameUIDML)(XrSession session, const XrCoordinateSpaceCreateInfoML *createInfo, XrSpace* space);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateSpaceFromCoordinateFrameUIDML(
+    XrSession                                   session,
+    const XrCoordinateSpaceCreateInfoML *       createInfo,
+    XrSpace*                                    space);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_ML */
+
+#ifdef XR_USE_PLATFORM_WIN32
+
+// XR_OCULUS_audio_device_guid is a preprocessor guard. Do not pass it to API calls.
+#define XR_OCULUS_audio_device_guid 1
+#define XR_OCULUS_audio_device_guid_SPEC_VERSION 1
+#define XR_OCULUS_AUDIO_DEVICE_GUID_EXTENSION_NAME "XR_OCULUS_audio_device_guid"
+#define XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS 128
+typedef XrResult (XRAPI_PTR *PFN_xrGetAudioOutputDeviceGuidOculus)(XrInstance instance, wchar_t buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
+typedef XrResult (XRAPI_PTR *PFN_xrGetAudioInputDeviceGuidOculus)(XrInstance instance, wchar_t buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetAudioOutputDeviceGuidOculus(
+    XrInstance                                  instance,
+    wchar_t                                     buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetAudioInputDeviceGuidOculus(
+    XrInstance                                  instance,
+    wchar_t                                     buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_WIN32 */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_FB_foveation_vulkan is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_foveation_vulkan 1
+#define XR_FB_foveation_vulkan_SPEC_VERSION 1
+#define XR_FB_FOVEATION_VULKAN_EXTENSION_NAME "XR_FB_foveation_vulkan"
+// XrSwapchainImageFoveationVulkanFB extends XrSwapchainImageVulkanKHR
+typedef struct XrSwapchainImageFoveationVulkanFB {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    VkImage               image;
+    uint32_t              width;
+    uint32_t              height;
+} XrSwapchainImageFoveationVulkanFB;
+
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_FB_swapchain_update_state_android_surface is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_swapchain_update_state_android_surface 1
+#define XR_FB_swapchain_update_state_android_surface_SPEC_VERSION 1
+#define XR_FB_SWAPCHAIN_UPDATE_STATE_ANDROID_SURFACE_EXTENSION_NAME "XR_FB_swapchain_update_state_android_surface"
+#ifdef XR_USE_PLATFORM_ANDROID
+typedef struct XrSwapchainStateAndroidSurfaceDimensionsFB {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    uint32_t              width;
+    uint32_t              height;
+} XrSwapchainStateAndroidSurfaceDimensionsFB;
+#endif // XR_USE_PLATFORM_ANDROID
+
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
+
+// XR_FB_swapchain_update_state_opengl_es is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_swapchain_update_state_opengl_es 1
+#define XR_FB_swapchain_update_state_opengl_es_SPEC_VERSION 1
+#define XR_FB_SWAPCHAIN_UPDATE_STATE_OPENGL_ES_EXTENSION_NAME "XR_FB_swapchain_update_state_opengl_es"
+#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
+typedef struct XrSwapchainStateSamplerOpenGLESFB {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    EGLenum               minFilter;
+    EGLenum               magFilter;
+    EGLenum               wrapModeS;
+    EGLenum               wrapModeT;
+    EGLenum               swizzleRed;
+    EGLenum               swizzleGreen;
+    EGLenum               swizzleBlue;
+    EGLenum               swizzleAlpha;
+    float                 maxAnisotropy;
+    XrColor4f             borderColor;
+} XrSwapchainStateSamplerOpenGLESFB;
+#endif // XR_USE_GRAPHICS_API_OPENGL_ES
+
+#endif /* XR_USE_GRAPHICS_API_OPENGL_ES */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_FB_swapchain_update_state_vulkan is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_swapchain_update_state_vulkan 1
+#define XR_FB_swapchain_update_state_vulkan_SPEC_VERSION 1
+#define XR_FB_SWAPCHAIN_UPDATE_STATE_VULKAN_EXTENSION_NAME "XR_FB_swapchain_update_state_vulkan"
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+typedef struct XrSwapchainStateSamplerVulkanFB {
+    XrStructureType         type;
+    void* XR_MAY_ALIAS      next;
+    VkFilter                minFilter;
+    VkFilter                magFilter;
+    VkSamplerMipmapMode     mipmapMode;
+    VkSamplerAddressMode    wrapModeS;
+    VkSamplerAddressMode    wrapModeT;
+    VkComponentSwizzle      swizzleRed;
+    VkComponentSwizzle      swizzleGreen;
+    VkComponentSwizzle      swizzleBlue;
+    VkComponentSwizzle      swizzleAlpha;
+    float                   maxAnisotropy;
+    XrColor4f               borderColor;
+} XrSwapchainStateSamplerVulkanFB;
+#endif // XR_USE_GRAPHICS_API_VULKAN
+
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_META_vulkan_swapchain_create_info is a preprocessor guard. Do not pass it to API calls.
+#define XR_META_vulkan_swapchain_create_info 1
+#define XR_META_vulkan_swapchain_create_info_SPEC_VERSION 1
+#define XR_META_VULKAN_SWAPCHAIN_CREATE_INFO_EXTENSION_NAME "XR_META_vulkan_swapchain_create_info"
+// XrVulkanSwapchainCreateInfoMETA extends XrSwapchainCreateInfo
+typedef struct XrVulkanSwapchainCreateInfoMETA {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    VkImageCreateFlags          additionalCreateFlags;
+    VkImageUsageFlags           additionalUsageFlags;
+} XrVulkanSwapchainCreateInfoMETA;
+
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_ANDROID_anchor_sharing_export is a preprocessor guard. Do not pass it to API calls.
+#define XR_ANDROID_anchor_sharing_export 1
+#define XR_ANDROID_anchor_sharing_export_SPEC_VERSION 1
+#define XR_ANDROID_ANCHOR_SHARING_EXPORT_EXTENSION_NAME "XR_ANDROID_anchor_sharing_export"
+typedef struct XrAnchorSharingInfoANDROID {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    XrSpace                     anchor;
+} XrAnchorSharingInfoANDROID;
+
+typedef struct XrAnchorSharingTokenANDROID {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    struct AIBinder*      token;
+} XrAnchorSharingTokenANDROID;
+
+// XrSystemAnchorSharingExportPropertiesANDROID extends XrSystemProperties
+typedef struct XrSystemAnchorSharingExportPropertiesANDROID {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    XrBool32              supportsAnchorSharingExport;
+} XrSystemAnchorSharingExportPropertiesANDROID;
+
+typedef XrResult (XRAPI_PTR *PFN_xrShareAnchorANDROID)(XrSession session, const XrAnchorSharingInfoANDROID* sharingInfo, XrAnchorSharingTokenANDROID* anchorToken);
+typedef XrResult (XRAPI_PTR *PFN_xrUnshareAnchorANDROID)(XrSession session, XrSpace anchor);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrShareAnchorANDROID(
+    XrSession                                   session,
+    const XrAnchorSharingInfoANDROID*           sharingInfo,
+    XrAnchorSharingTokenANDROID*                anchorToken);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrUnshareAnchorANDROID(
+    XrSession                                   session,
+    XrSpace                                     anchor);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

frame/openxr-compat/vendor/openxr/openxr_platform_defines.h

@@ -0,0 +1,114 @@
+/*
+** Copyright (c) 2017-2026 The Khronos Group Inc.
+**
+** SPDX-License-Identifier: Apache-2.0 OR MIT
+*/
+
+#ifndef OPENXR_PLATFORM_DEFINES_H_
+#define OPENXR_PLATFORM_DEFINES_H_ 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Platform-specific calling convention macros.
+ *
+ * Platforms should define these so that OpenXR clients call OpenXR functions
+ * with the same calling conventions that the OpenXR implementation expects.
+ *
+ * XRAPI_ATTR - Placed before the return type in function declarations.
+ *              Useful for C++11 and GCC/Clang-style function attribute syntax.
+ * XRAPI_CALL - Placed after the return type in function declarations.
+ *              Useful for MSVC-style calling convention syntax.
+ * XRAPI_PTR  - Placed between the '(' and '*' in function pointer types.
+ *
+ * Function declaration:  XRAPI_ATTR void XRAPI_CALL xrFunction(void);
+ * Function pointer type: typedef void (XRAPI_PTR *PFN_xrFunction)(void);
+ */
+#if defined(_WIN32)
+#define XRAPI_ATTR
+// On Windows, functions use the stdcall convention
+#define XRAPI_CALL __stdcall
+#define XRAPI_PTR XRAPI_CALL
+#elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH < 7
+#error "API not supported for the 'armeabi' NDK ABI"
+#elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH >= 7 && defined(__ARM_32BIT_STATE)
+// On Android 32-bit ARM targets, functions use the "hardfloat"
+// calling convention, i.e. float parameters are passed in registers. This
+// is true even if the rest of the application passes floats on the stack,
+// as it does by default when compiling for the armeabi-v7a NDK ABI.
+#define XRAPI_ATTR __attribute__((pcs("aapcs-vfp")))
+#define XRAPI_CALL
+#define XRAPI_PTR XRAPI_ATTR
+#else
+// On other platforms, use the default calling convention
+#define XRAPI_ATTR
+#define XRAPI_CALL
+#define XRAPI_PTR
+#endif
+
+#include <stddef.h>
+
+#if !defined(XR_NO_STDINT_H)
+#if defined(_MSC_VER) && (_MSC_VER < 1600)
+typedef signed __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef signed __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef signed __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef signed __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#else
+#include <stdint.h>
+#endif
+#endif  // !defined( XR_NO_STDINT_H )
+
+// XR_PTR_SIZE (in bytes)
+#if (defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__) ) || defined(_M_X64) || defined(__ia64) || defined(_M_IA64) || defined(__aarch64__) || defined(__powerpc64__))
+#define XR_PTR_SIZE 8
+#else
+#define XR_PTR_SIZE 4
+#endif
+
+// Needed so we can use clang __has_feature portably.
+#if !defined(XR_COMPILER_HAS_FEATURE)
+#if defined(__clang__)
+#define XR_COMPILER_HAS_FEATURE(x) __has_feature(x)
+#else
+#define XR_COMPILER_HAS_FEATURE(x) 0
+#endif
+#endif
+
+// Identifies if the current compiler has C++11 support enabled.
+// Does not by itself identify if any given C++11 feature is present.
+#if !defined(XR_CPP11_ENABLED) && defined(__cplusplus)
+#if defined(__GNUC__) && defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define XR_CPP11_ENABLED 1
+#elif defined(_MSC_VER) && (_MSC_VER >= 1600)
+#define XR_CPP11_ENABLED 1
+#elif (__cplusplus >= 201103L) // 201103 is the first C++11 version.
+#define XR_CPP11_ENABLED 1
+#endif
+#endif
+
+// Identifies if the current compiler supports C++11 nullptr.
+#if !defined(XR_CPP_NULLPTR_SUPPORTED)
+#if defined(XR_CPP11_ENABLED) &&                                              \
+    ((defined(__clang__) && XR_COMPILER_HAS_FEATURE(cxx_nullptr)) ||          \
+     (defined(__GNUC__) && (((__GNUC__ * 1000) + __GNUC_MINOR__) >= 4006)) || \
+     (defined(_MSC_VER) && (_MSC_VER >= 1600)) ||                             \
+     (defined(__EDG_VERSION__) && (__EDG_VERSION__ >= 403)))
+#define XR_CPP_NULLPTR_SUPPORTED 1
+#endif
+#endif
+
+#if !defined(XR_CPP_NULLPTR_SUPPORTED)
+#define XR_CPP_NULLPTR_SUPPORTED 0
+#endif  // !defined(XR_CPP_NULLPTR_SUPPORTED)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

ios/FrameControl.xcodeproj/project.pbxproj

@@ -17,6 +17,7 @@
 		78427FC66780623F31E7501E /* FrameControlApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 93C8E0D7C3F4F628941B3D5A /* FrameControlApp.swift */; };
 		84423CB45629465420180A64 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 8F2CB550FC81C01E6BDD5A71 /* Assets.xcassets */; };
 		9657F7BC23E3352E5AB30777 /* SetupView.swift in Sources */ = {isa = PBXBuildFile; fileRef = DB544223FC60A59CC3E8EF5F /* SetupView.swift */; };
+		A0C5B00E257230A38DBD9E54 /* ComfortNotificationTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = E81218B75FEEE47B8D8BAE20 /* ComfortNotificationTests.swift */; };
 		A8C7AED25A6280682FCE45DC /* Citadel in Frameworks */ = {isa = PBXBuildFile; productRef = 6BA549B6CC0A0CB847126456 /* Citadel */; };
 		DC043FB74BE2D23F3A5826BF /* FrameControlTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1740B691F9C25E5FB6F9EFC3 /* FrameControlTests.swift */; };
 		E6898C714A92D3979F73B6E1 /* FrameFinder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2F288DF6636A417F0CA3A6CD /* FrameFinder.swift */; };
@@ -48,6 +49,7 @@
 		BF0FCA7117DA3ABA449B4EE0 /* InstallLink.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InstallLink.swift; sourceTree = "<group>"; };
 		D6C4E6C28315CA8729FCAAEA /* WebShell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WebShell.swift; sourceTree = "<group>"; };
 		DB544223FC60A59CC3E8EF5F /* SetupView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SetupView.swift; sourceTree = "<group>"; };
+		E81218B75FEEE47B8D8BAE20 /* ComfortNotificationTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ComfortNotificationTests.swift; sourceTree = "<group>"; };
 		EDC7BA8014DBC302D08FD397 /* HeadsetServer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HeadsetServer.swift; sourceTree = "<group>"; };
 		F3E2F5607DD877272483D64E /* FrameControl.app */ = {isa = PBXFileReference; includeInIndex = 0; lastKnownFileType = wrapper.application; path = FrameControl.app; sourceTree = BUILT_PRODUCTS_DIR; };
 /* End PBXFileReference section */
@@ -107,6 +109,7 @@
 		75A17B1C79C8C3C60FEABBA6 /* FrameControlTests */ = {
 			isa = PBXGroup;
 			children = (
+				E81218B75FEEE47B8D8BAE20 /* ComfortNotificationTests.swift */,
 				1740B691F9C25E5FB6F9EFC3 /* FrameControlTests.swift */,
 			);
 			path = FrameControlTests;
@@ -247,7 +250,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "mkdir -p \"${DERIVED_FILE_DIR}\"\npython3 \"${SRCROOT}/scripts/make_frame_bundle.py\" \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" > \"${DERIVED_FILE_DIR}/frame-bundle.version\"\nmkdir -p \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}\"\ncp \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.version\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/\"\n";
+			shellScript = "set -e\nmkdir -p \"${DERIVED_FILE_DIR}\"\n# Written aside and moved into place together, so a failed download can't leave a stale pair.\npython3 \"${SRCROOT}/scripts/make_frame_bundle.py\" \"${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz\" > \"${DERIVED_FILE_DIR}/frame-bundle.new.version\"\nmv \"${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\"\nmv \"${DERIVED_FILE_DIR}/frame-bundle.new.version\" \"${DERIVED_FILE_DIR}/frame-bundle.version\"\nmkdir -p \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}\"\ncp \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.version\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/\"\n";
 		};
 /* End PBXShellScriptBuildPhase section */
 
@@ -274,6 +277,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				A0C5B00E257230A38DBD9E54 /* ComfortNotificationTests.swift in Sources */,
 				DC043FB74BE2D23F3A5826BF /* FrameControlTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

ios/FrameControl/App/AppModel.swift

@@ -1,4 +1,5 @@
 import Citadel
+import CryptoKit
 import Foundation
 import SwiftUI
 import UIKit
@@ -33,6 +34,11 @@ final class AppModel: ObservableObject {
     }
 
     var deviceName: String { UIDevice.current.userInterfaceIdiom == .pad ? "iPad" : "iPhone" }
+    /// Stable per install: a hash of this device's SSH key, which is made once and kept in the Keychain.
+    var clientID: String {
+        let digest = SHA256.hash(data: Data(authorizedKeysLine.utf8))
+        return deviceName.lowercased() + "-" + digest.prefix(6).map { String(format: "%02x", $0) }.joined()
+    }
     private var hostKey: String? { UserDefaults.standard.string(forKey: Self.hostKeyKey) }
 
     // MARK: pairing
@@ -167,7 +173,7 @@ final class AppModel: ObservableObject {
             guard current() else { throw CancellationError() }
             step("Starting Frame Control on the headset")
             let key = Self.randomKey()
-            let server = try await HeadsetServer.start(in: dir, over: l, key: key, device: deviceName)
+            let server = try await HeadsetServer.start(in: dir, over: l, key: key, device: deviceName, client: clientID)
             guard current() else { throw CancellationError() }
             let f = try await PortForwarder.start(over: l, to: server.port)
             forwarder = f

ios/FrameControl/SSH/HeadsetServer.swift

@@ -80,8 +80,10 @@ final class HeadsetServer: @unchecked Sendable {
     }
 
     /// Starts the server in dir and waits for it to say which port it took.
-    static func start(in dir: String, over link: FrameLink, key: String, device: String) async throws -> HeadsetServer {
+    /// client is a stable id for this install (keyboard-and-trackpad pairing is kept per client).
+    static func start(in dir: String, over link: FrameLink, key: String, device: String, client: String) async throws -> HeadsetServer {
         let command = "cd \(dir) && FRAME_LOCAL=1 FRAME_UI_KEY=\(key) FRAME_DEVICE=\(shellQuote(device)) "
+            + "FRAME_CLIENT=\(shellQuote(client)) "
             + "exec python3 -I -u -B \"$PWD/ui/server.py\" --port 0 --exit-on-eof 2>&1"
         let stream = try await link.client.executeCommandStream(command)
         let box = PortWaiter()

ios/FrameControl/Web/WebShell.swift

@@ -1,6 +1,7 @@
 import SwiftUI
 import UIKit
 import WebKit
+import UserNotifications
 
 /// The Frame Control page, served by the server on the headset, in a web view.
 /// window.frameApp (the same bridge the desktop app's preload.js provides) lets
@@ -48,6 +49,7 @@ struct WebShell: UIViewRepresentable {
       let installCb = null;
       window.frameApp = {
         platform: "ios",
+        notify: (message, request) => call("notify", { message, request }),
         readClipboard: () => call("readClipboard"),
         setUpConnection: () => call("setUpConnection"),
         open: (what) => call("open", what),
@@ -58,13 +60,31 @@ struct WebShell: UIViewRepresentable {
     })();
     """
 
-    final class Coordinator: NSObject, WKScriptMessageHandlerWithReply, WKNavigationDelegate, WKUIDelegate {
+    final class Coordinator: NSObject, WKScriptMessageHandlerWithReply, WKNavigationDelegate, WKUIDelegate, UNUserNotificationCenterDelegate {
         let model: AppModel
         weak var web: WKWebView?
         var loaded: URL?
         private var installReady = false
 
-        init(model: AppModel) { self.model = model }
+        init(model: AppModel) {
+            self.model = model
+            super.init()
+            UNUserNotificationCenter.current().delegate = self
+        }
+
+        func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification,
+                                    withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
+            completionHandler([.banner, .sound, .list])
+        }
+
+        static func notificationContent(_ message: String) -> UNMutableNotificationContent? {
+            guard !message.isEmpty, message.count <= 500 else { return nil }
+            let content = UNMutableNotificationContent()
+            content.title = "Frame Control"
+            content.body = message
+            content.sound = .default
+            return content
+        }
 
         // MARK: bridge
 
@@ -76,6 +96,28 @@ struct WebShell: UIViewRepresentable {
             }
             let arg = body["arg"]
             switch name {
+            case "notify":
+                guard message.frameInfo.isMainFrame,
+                      message.frameInfo.securityOrigin.host == "127.0.0.1",
+                      let args = arg as? [String: Any], let text = args["message"] as? String,
+                      let content = Self.notificationContent(text) else {
+                    return replyHandler(nil, "Invalid notification")
+                }
+                let center = UNUserNotificationCenter.current()
+                let send: (Bool, Error?) -> Void = { allowed, error in
+                    guard allowed else {
+                        return replyHandler(nil, error?.localizedDescription ?? "Notifications are off. Enable them in iOS Settings.")
+                    }
+                    let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: nil)
+                    center.add(request) { error in replyHandler(error == nil, error?.localizedDescription) }
+                }
+                if args["request"] as? Bool == true {
+                    center.requestAuthorization(options: [.alert, .sound], completionHandler: send)
+                } else {
+                    center.getNotificationSettings { settings in
+                        send(settings.authorizationStatus == .authorized || settings.authorizationStatus == .provisional, nil)
+                    }
+                }
             case "readClipboard":
                 replyHandler(UIPasteboard.general.string ?? "", nil)
             case "setUpConnection":

ios/FrameControlTests/ComfortNotificationTests.swift

@@ -0,0 +1,14 @@
+import XCTest
+import UserNotifications
+@testable import Frame_Control
+
+final class ComfortNotificationTests: XCTestCase {
+    func testNotificationContentAndBounds() {
+        let content = WebShell.Coordinator.notificationContent("Time for a break")
+        XCTAssertEqual(content?.title, "Frame Control")
+        XCTAssertEqual(content?.body, "Time for a break")
+        XCTAssertNotNil(content?.sound)
+        XCTAssertNil(WebShell.Coordinator.notificationContent(""))
+        XCTAssertNil(WebShell.Coordinator.notificationContent(String(repeating: "x", count: 501)))
+    }
+}

ios/project.yml

@@ -52,8 +52,12 @@ targets:
       - name: Pack the Frame bundle
         # The server, headset helpers and catalogue, as the app copies them to the Frame.
         script: |
+          set -e
           mkdir -p "${DERIVED_FILE_DIR}"
-          python3 "${SRCROOT}/scripts/make_frame_bundle.py" "${DERIVED_FILE_DIR}/frame-bundle.tar.gz" > "${DERIVED_FILE_DIR}/frame-bundle.version"
+          # Written aside and moved into place together, so a failed download can't leave a stale pair.
+          python3 "${SRCROOT}/scripts/make_frame_bundle.py" "${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz" > "${DERIVED_FILE_DIR}/frame-bundle.new.version"
+          mv "${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz" "${DERIVED_FILE_DIR}/frame-bundle.tar.gz"
+          mv "${DERIVED_FILE_DIR}/frame-bundle.new.version" "${DERIVED_FILE_DIR}/frame-bundle.version"
           mkdir -p "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
           cp "${DERIVED_FILE_DIR}/frame-bundle.tar.gz" "${DERIVED_FILE_DIR}/frame-bundle.version" "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/"
         basedOnDependencyAnalysis: false

ios/scripts/make_frame_bundle.py

@@ -1,6 +1,8 @@
 #!/usr/bin/env python3
 """Pack what Frame Control's server needs to run on the Frame itself (the files the
-desktop app ships, plus ui/local-bin) into one reproducible .tar.gz.
+desktop app ships, plus ui/local-bin) into one reproducible .tar.gz. That includes
+KDE Connect for the keyboard and trackpad (frame/kdeconnect), downloaded first and
+checked against its pinned SHA-256s.
 
 The iPhone app copies it to ~/.cache/frame-control/<version> on the Frame and
 starts ui/server.py there. <version> is the SHA-256 of the archive, so a new
@@ -17,7 +19,9 @@ from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[2]
 PATTERNS = ["ui/*.py", "ui/*.html", "ui/local-bin/*", "scripts/*.sh", "frame/android/*.sh", "frame/android/*.py",
-            "frame/devkit-utils/**/*", "apk-catalog/*.py", "apk-catalog/pins.json", "apk-catalog/site/apps.js"]
+            "frame/devkit-utils/**/*", "apk-catalog/*.py", "apk-catalog/pins.json", "apk-catalog/site/apps.js",
+            "frame/kdeconnect/packages.json", "frame/kdeconnect/NOTICE.md", "frame/kdeconnect/LICENSES/*/*",
+            "frame/kdeconnect/packages/*.pkg.tar.zst", "LICENSE", "THIRD_PARTY_NOTICES.md"]
 
 
 def files():
@@ -47,6 +51,9 @@ def build():
 if __name__ == "__main__":
     if len(sys.argv) != 2:
         sys.exit(__doc__)
+    sys.path.insert(0, str(ROOT / "frame" / "kdeconnect"))
+    import fetch
+    fetch.fetch()
     data = build()
     Path(sys.argv[1]).write_bytes(data)
     print(hashlib.sha256(data).hexdigest()[:16])

scripts/push-vr-video.sh

@@ -1,65 +1,8 @@
 #!/usr/bin/env zsh
-# Mac-side: upload VR videos to the Steam Frame so DeoVR can play them in 3D.
-#
-# Files go to ~/Videos/VR on the Frame. The script links that folder into
-# DeoVR's Proton prefix as C:\users\steamuser\Videos\VR, so DeoVR's file
-# browser finds it under Videos. (It's also reachable as Z:\home\steamos\Videos\VR.)
-# Uploads resume if interrupted.
-#
-# Name files so DeoVR picks the projection: include _180 or _360 (or _fisheye190,
-# _mkx200, _rf52 ...) plus the stereo layout (_LR / _SBS side by side, _TB over-
-# under), e.g. "beach_180_LR.mp4". You can also change it in DeoVR's player.
-#
-# Usage:
-#   scripts/push-vr-video.sh FILE_OR_DIR...       # upload
-#   scripts/push-vr-video.sh --launch FILE...     # upload, then start DeoVR
-#   scripts/push-vr-video.sh --launch             # just start DeoVR
-#   scripts/push-vr-video.sh --list               # what's on the Frame
+# Upload media for Frame Control's own OpenVR player (no external player).
+# Usage: scripts/push-vr-video.sh [--launch] [--layout auto|mono|sbs|ou|full-sbs|full-ou] [--theatre] FILE...
+#        scripts/push-vr-video.sh --list | --stop
+# Files go to ~/Videos/FrameControl/<id>/; --launch accepts exactly one file.
+# Directories, automatic DeoVR launching and Proton-prefix links are no longer used.
 set -euo pipefail
-
-FRAME_ALIAS=${FRAME_ALIAS:-frame}
-DEOVR_APPID=837380
-REMOTE_DIR="Videos/VR"
-PREFIX_VIDEOS=".local/share/Steam/steamapps/compatdata/$DEOVR_APPID/pfx/drive_c/users/steamuser/Videos"
-
-launch=0 list=0
-while (( $# )); do
-  case "$1" in
-    -h|--help) sed -n '2,17p' "$0"; exit 0 ;;
-    --launch)  launch=1; shift ;;
-    --list)    list=1; shift ;;
-    --)        shift; break ;;
-    -*)        print -u2 "push-vr-video: unknown option $1"; exit 2 ;;
-    *)         break ;;
-  esac
-done
-(( $# || launch || list )) || { sed -n '2,17p' "$0" >&2; exit 2; }
-
-for f in "$@"; do
-  [[ -e "$f" ]] || { print -u2 "push-vr-video: no such file: $f"; exit 2; }
-done
-
-# Create the folder and link it into DeoVR's prefix (the prefix exists once
-# DeoVR has run). Refresh a stale link, but never replace a real directory.
-if (( $# || launch )); then
-  ssh "$FRAME_ALIAS" "mkdir -p ~/$REMOTE_DIR
-p=~/$PREFIX_VIDEOS
-if [ -d \"\$p\" ] && { [ -L \"\$p/VR\" ] || [ ! -e \"\$p/VR\" ]; }; then ln -sfn ~/$REMOTE_DIR \"\$p/VR\"
-elif [ -d \"\$p/VR\" ]; then echo \"warning: \$p/VR is a real folder, so uploads won't show under DeoVR's Videos; browse Z:\\\\home\\\\steamos\\\\Videos\\\\VR instead\" >&2; fi
-[ -d \"\$p\" ] || echo 'note: DeoVR has not run yet; use Z:\\home\\steamos\\Videos\\VR or run this again after starting it once' >&2"
-fi
-
-if (( $# )); then
-  # -L: send what a symlink points at; a Mac-side link would dangle on the Frame
-  rsync -aL --partial --progress -- "$@" "$FRAME_ALIAS:$REMOTE_DIR/"
-fi
-
-if (( list )); then
-  ssh "$FRAME_ALIAS" "cd ~/$REMOTE_DIR && ls -lhR"
-fi
-
-if (( launch )); then
-  ssh "$FRAME_ALIAS" "command -v steam >/dev/null || { echo 'steam not found on the Frame' >&2; exit 1; }
-steam steam://rungameid/$DEOVR_APPID </dev/null >/dev/null 2>&1 &"
-  print "DeoVR starting on the Frame. Open Local files / the file browser → Videos → VR."
-fi
+exec python3 "${0:A:h}/../ui/frame_media_cli.py" "$@"

tests/e2e/test_device.py

@@ -83,5 +83,27 @@ class Device(harness.FrameTestCase):
         self.assertEqual(state()['steam']['pages'][0]['title'], 'Hades on Steam')
 
 
+class VRUtilities(harness.FrameTestCase):
+    def test_missing_vr_runtime_is_unavailable_not_zero_fps(self):
+        data = ok('GET', '/api/status')
+        self.assertIsNone(data['performance']['compositorFps'])
+        self.assertIsNone(data['performance']['appFps'])
+        self.assertEqual(data['temp'], 41.5)
+        self.assertEqual(data['battery']['percent'], 76)
+
+    def test_optional_paid_utilities_are_not_installed(self):
+        # The fake library contains games but none of these paid software titles.
+        for appid in (1009850, 1173510, 1068820, 908520):
+            code, body, _ = api('POST', '/api/steam', {'action': 'install', 'appid': appid})
+            self.assertEqual(code, 502, body)
+            self.assertIn('not owned', body['error'])
+        self.assertEqual(launches('install'), [])
+
+    def test_unverified_controls_are_not_exposed(self):
+        for action in ('recenter', 'adjust', 'restore'):
+            code, body, _ = api('POST', '/api/vr', {'action': action, 'origin': 'seated', 'y': .1})
+            self.assertEqual(code, 400, body)
+
+
 if __name__ == '__main__':
     unittest.main()

tests/e2e/test_media_transfer.py

@@ -0,0 +1,21 @@
+"""Media transfer through the real HTTP/SSH path; the fake has no VR renderer."""
+import harness
+from harness import ok, ssh
+
+harness.require()
+
+
+class Media(harness.FrameTestCase):
+    def test_upload_and_list_without_launching_a_viewer(self):
+        # The transfer endpoint doesn't decode. Rendering belongs to the real
+        # headset smoke checks documented in docs/vr-video.md.
+        self.assertEqual(ssh('stat -c "%U:%G %a" ~/.local/share').strip(), 'steamos:steamos 755')
+        result = ok('POST', '/api/upload', raw=b'fake-media', headers={
+            'X-Mode': 'media', 'X-Filename': 'test_SBS.png'})
+        identity = result['id']
+        try:
+            files = ok('POST', '/api/media', {'action': 'list'})['files']
+            self.assertIn(identity, [f['id'] for f in files])
+            self.assertEqual(ssh('cat ~/Videos/FrameControl/'+identity), 'fake-media')
+        finally:
+            ssh('rm -rf ~/Videos/FrameControl/'+identity.split('/')[0])

tests/fakeframe/rootfs/usr/local/lib/fakeframe/cef_shim.js

@@ -27,7 +27,7 @@ function newShortcutId(steam) {
 function build(steam) {
   const findShortcut = id => steam.shortcuts.find(s => s.appid === Number(id));
   const gameOverview = a => ({
-    appid: a.appid, display_name: a.display_name, sort_as: a.display_name, app_type: 1,
+    appid: a.appid, display_name: a.display_name, sort_as: a.display_name, app_type: a.app_type ?? 1,
     steam_hw_compat_category_packed: a.packed || 0, vr_supported: !!a.vr, vr_only: !!a.vr_only,
     size_on_disk: String(a.installed ? a.size : 0), minutes_playtime_forever: a.minutes || 0,
     rt_last_time_played: a.last_played || 0,

tests/fakeframe/rootfs/usr/local/lib/fakeframe/init.py

@@ -231,6 +231,13 @@ def sysfs(state):
 
 def runtimes(state):
     """Installed compat tools as Steam app manifests, and the Lepton launcher itself."""
+    # Verified 2026-09-28, BUILD_ID 20260925.6191901: both parents are
+    # steamos:steamos 0755. The root supervisor must not leave them root-owned
+    # when creating Steam's fake manifests; user-account app installs need them.
+    for directory in (HOME + '/.local', HOME + '/.local/share'):
+        os.makedirs(directory, mode=0o755, exist_ok=True)
+        chown(directory)
+        os.chmod(directory, 0o755)
     apps = fs.STEAM_ROOT + '/steamapps'
     for alias, installed in state['runtimes'].items():
         acf = f'{apps}/appmanifest_{fs.RUNTIME_APPIDS[alias]}.acf'

tests/page/ctrl_gestures.mjs

@@ -0,0 +1,244 @@
+// Control on the live view (tap, drag, hold, scroll, type), run in node against the real
+// functions from ui/index.html with a fake canvas and a fake server.
+import { readFileSync } from "fs";
+const src = readFileSync(new URL("../../ui/index.html", import.meta.url), "utf8");
+const grab = name => {
+  const one = src.match(new RegExp(`\\n((?:async )?function ${name}\\(.*\\}\\n)`));  // one-line function
+  if (one) return one[1];
+  const m = src.match(new RegExp(`(?:\\nconst ${name} = [^\\n]*\\n)|((?:async )?function ${name}\\([\\s\\S]*?\\n}\\n)`));
+  if (!m) throw new Error("not found: " + name);
+  return m[0];
+};
+const NAMES = ["panelKey", "ctrlAimedAt", "ctrlSameTarget", "isMoveEvent", "isRelease", "ctrlKeepable", "TAP_MOVE", "ctrlAim", "ctrlKeyEvent", "ctrlTouchCancel", "ctrlSend", "ctrlFlush", "ctrlMoveTo", "ctrlMoveBy", "ctrlSchedule",
+  "ctrlFlushMoves", "ctrlButton", "ctrlClick", "ctrlRelease", "ctrlFraction", "ctrlTouchDown", "centroid",
+  "ctrlTouchMove", "ctrlTouchUp", "ctrlTap", "ctrlText"];
+const code = NAMES.map(grab).join("");
+const fail = msg => { console.log("FAIL " + msg); process.exit(1); };
+const tick = (ms = 0) => new Promise(r => setTimeout(r, ms));
+
+function page({ mode = "abs", rect = { left: 0, top: 0, width: 640, height: 360 }, api } = {}) {
+  const target = { panel: { window: 42, display: ":1" } };
+  const ctrl = { on: true, queue: [], sending: false, state: "ready", message: "", move: null, rel: [0, 0], raf: 0,
+                 held: new Set(), keys: new Set(), pointers: new Map(), g: null, retry: null };
+  const sent = [];
+  const canvas = { width: 1280, height: 720, getBoundingClientRect: () => rect };
+  const env = {
+    ctrl, $: () => canvas, ctrlMode: () => mode, ctrlShow: () => {}, toast: () => {},
+    ctrlTarget: () => (mode !== "abs" ? { ok: true } : target.panel ? { ok: true, panel: target.panel } : { why: "gone" }),
+    api: api || (async (path, body) => { sent.push(...body.events); return { state: "ready", sent: true }; }),
+    requestAnimationFrame: cb => { setTimeout(cb, 0); return 1; },
+    navigator: {},
+  };
+  const fns = new Function(...Object.keys(env), `let ctrlWarned = false;\n${code}
+    return { ctrlTouchDown, ctrlTouchMove, ctrlTouchUp, ctrlTouchCancel, ctrlSend, ctrlText, ctrlButton, ctrlKeyEvent, ctrlRelease, ctrlFlushMoves };`)(...Object.values(env));
+  const at = (id, x, y) => ({ pointerId: id, clientX: x, clientY: y });
+  return { ctrl, sent, target, ...fns, at };
+}
+
+// A tap lands where it was tapped: pointer there first, then the click.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 320, 90)); p.ctrlTouchUp(p.at(1, 320, 90));
+  await tick(10);
+  const [move, down, up] = p.sent;
+  if (!(move.fx === 0.5 && Math.abs(move.fy - 0.25) < 1e-9 && move.window === 42 && move.display === ":1")) fail("tap position " + JSON.stringify(move));
+  if (!(down.window === 42 && down.display === ":1")) fail("a press names its panel " + JSON.stringify(down));
+  if (!(down.button === "left" && down.down && up.button === "left" && up.down === false && p.sent.length === 3))
+    fail("tap click " + JSON.stringify(p.sent));
+}
+// The panel is letterboxed in a taller view: taps map inside it, taps on the bars do nothing.
+{
+  const p = page({ rect: { left: 0, top: 0, width: 640, height: 480 } });  // 640x360 picture, 60px bars
+  p.ctrlTouchDown(p.at(1, 320, 150)); p.ctrlTouchUp(p.at(1, 320, 150));
+  p.ctrlTouchDown(p.at(2, 320, 10)); p.ctrlTouchUp(p.at(2, 320, 10));
+  await tick(10);
+  if (!(p.sent.length === 3 && Math.abs(p.sent[0].fy - 0.25) < 1e-9)) fail("letterbox " + JSON.stringify(p.sent));
+}
+// A drag is a mouse drag: down where it started, moves, up at the end.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 100));
+  p.ctrlTouchMove(p.at(1, 140, 100)); await tick(5);
+  p.ctrlTouchMove(p.at(1, 200, 120)); await tick(5);
+  p.ctrlTouchUp(p.at(1, 200, 120)); await tick(10);
+  const kinds = p.sent.map(e => "fx" in e ? "move" : `${e.button}-${e.down ? "down" : "up"}`);
+  if (!(kinds[0] === "move" && kinds[1] === "left-down" && kinds.at(-1) === "left-up" && kinds.includes("move", 2)))
+    fail("drag " + kinds.join(","));
+  if (Math.abs(p.sent[0].fx - 100 / 640) > 1e-9) fail("drag starts where the finger went down");
+  if (p.ctrl.held.size) fail("drag left the button held");
+}
+// Press and hold is a right-click where the finger is.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 64, 36));
+  await tick(620);
+  p.ctrlTouchUp(p.at(1, 64, 36)); await tick(10);
+  const buttons = p.sent.filter(e => "button" in e).map(e => `${e.button}-${e.down}`);
+  if (buttons.join() !== "right-true,right-false") fail("hold " + buttons.join());
+  if (!(p.sent[0].fx === 0.1)) fail("hold position " + JSON.stringify(p.sent[0]));
+}
+// Two fingers scroll, and the content follows them (fingers up scrolls down).
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 200)); p.ctrlTouchDown(p.at(2, 200, 200));
+  p.ctrlTouchMove(p.at(1, 100, 180)); p.ctrlTouchMove(p.at(2, 200, 180));
+  p.ctrlTouchUp(p.at(1, 100, 180)); p.ctrlTouchUp(p.at(2, 200, 180));
+  await tick(10);
+  const dy = p.sent.filter(e => e.scroll).reduce((a, e) => a + e.scroll[1], 0);
+  if (!(dy === 40 && !p.sent.some(e => "button" in e))) fail("scroll " + JSON.stringify(p.sent));
+}
+// On the headset view it's a trackpad: drags move the pointer, taps click where it is.
+{
+  const p = page({ mode: "rel" });
+  p.ctrlTouchDown(p.at(1, 100, 100));
+  p.ctrlTouchMove(p.at(1, 110, 100)); p.ctrlTouchMove(p.at(1, 120, 105));
+  p.ctrlTouchUp(p.at(1, 120, 105)); await tick(10);
+  p.ctrlTouchDown(p.at(1, 50, 50)); p.ctrlTouchUp(p.at(1, 50, 50)); await tick(10);
+  const moved = p.sent.filter(e => "dx" in e).reduce((a, e) => [a[0] + e.dx, a[1] + e.dy], [0, 0]);
+  if (!(moved[0] === 32 && moved[1] === 8)) fail("trackpad move " + JSON.stringify(moved));
+  if (p.sent.some(e => "fx" in e)) fail("trackpad sent an absolute position");
+  if (p.sent.filter(e => e.button === "left").length !== 2) fail("trackpad tap " + JSON.stringify(p.sent));
+}
+// Text: plain ASCII only, in chunks the server takes.
+{
+  const p = page();
+  p.ctrlText("héllo " + "x".repeat(600));
+  await tick(10);
+  const text = p.sent.map(e => e.text).join("");
+  if (!(text === "hllo " + "x".repeat(600) && p.sent.every(e => e.text.length <= 500))) fail("text " + text.length);
+}
+// Not connected yet: clicks and keys wait with their position. The request fails: only releases wait.
+{
+  let calls = 0;
+  const p = page({ api: async () => { calls++; if (calls === 1) return { state: "starting", sent: false }; throw new Error("offline"); } });
+  p.ctrlSend([{ fx: 0.1, fy: 0.1, window: 42 }, { button: "left", down: true }, { key: 30, down: true }]);
+  await tick(5);
+  const q = p.ctrl.queue;
+  if (!(q.length === 3 && "fx" in q[0] && q[1].button === "left" && q[2].key === 30)) fail("kept while starting " + JSON.stringify(q));
+  clearTimeout(p.ctrl.retry);
+  p.ctrl.queue = []; p.ctrl.retryAt = 0;
+  p.ctrlSend([{ button: "left", down: false }, { key: 31, down: true }, { dx: 3, dy: 1 }]);
+  await tick(5);
+  if (!(p.ctrl.queue.length === 1 && p.ctrl.queue[0].button === "left" && p.ctrl.queue[0].down === false))
+    fail("release kept on failure " + JSON.stringify(p.ctrl.queue));
+  if (calls !== 2) fail("retried in a tight loop: " + calls + " requests");
+  clearTimeout(p.ctrl.retry);
+}
+// Turning Control off (or the view losing focus) lets go of anything held.
+{
+  const p = page();
+  p.ctrlButton("left", true);
+  p.ctrlRelease(); await tick(10);
+  if (!(p.sent.at(-1).button === "left" && p.sent.at(-1).down === false && !p.ctrl.held.size)) fail("release " + JSON.stringify(p.sent));
+}
+// Keys held on the Frame are let go too.
+{
+  const p = page();
+  p.ctrlKeyEvent(42, true);
+  p.ctrlRelease(); await tick(10);
+  if (!(p.sent.at(-1).key === 42 && p.sent.at(-1).down === false && !p.ctrl.keys.size)) fail("key release " + JSON.stringify(p.sent));
+}
+// A long queue sheds moves and old scrolls, never a release.
+{
+  const p = page({ api: () => new Promise(() => {}) });  // stuck request
+  p.ctrlSend([{ dx: 1, dy: 1 }]);
+  p.ctrlSend([{ button: "left", down: false }]);
+  for (let i = 0; i < 320; i++) p.ctrlSend([{ scroll: [0, 1] }]);
+  if (!p.ctrl.queue.some(e => e.button === "left" && e.down === false)) fail("trim dropped a release");
+  if (p.ctrl.queue.length > 300) fail("trim kept " + p.ctrl.queue.length);
+}
+// Broken on the Frame side: no hammering, and only releases wait.
+{
+  let calls = 0;
+  const p = page({ api: async () => { calls++; return { state: "error", sent: false }; } });
+  p.ctrlSend([{ button: "left", down: true }, { button: "left", down: false }]);
+  await tick(50);
+  if (calls !== 1) fail("error response reposted " + calls + " times");
+  if (!(p.ctrl.queue.length === 1 && p.ctrl.queue[0].down === false)) fail("error kept " + JSON.stringify(p.ctrl.queue));
+  clearTimeout(p.ctrl.retry);
+}
+// Connecting: a tap keeps its position, so it lands where it was made.
+{
+  const p = page({ api: async () => ({ state: "starting", sent: false }) });
+  p.ctrlTouchDown(p.at(1, 320, 90)); p.ctrlTouchUp(p.at(1, 320, 90));
+  await tick(10);
+  const q = p.ctrl.queue;
+  if (!("fx" in q[0] && q[1].button === "left")) fail("connecting tap " + JSON.stringify(q));
+  clearTimeout(p.ctrl.retry);
+}
+// Lifting one of two scrolling fingers doesn't jump the scroll or start a drag.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 200)); p.ctrlTouchDown(p.at(2, 300, 200));
+  p.ctrlTouchUp(p.at(1, 100, 200));
+  p.ctrlTouchMove(p.at(2, 300, 199));
+  p.ctrlTouchUp(p.at(2, 300, 199)); await tick(10);
+  if (p.sent.length) fail("one finger left after scrolling " + JSON.stringify(p.sent));
+}
+// A cancelled touch isn't a tap.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 100)); p.ctrlTouchCancel(p.at(1, 100, 100)); await tick(10);
+  if (p.sent.length) fail("cancel clicked " + JSON.stringify(p.sent));
+}
+// Press and hold on the bars around the picture does nothing.
+{
+  const p = page({ rect: { left: 0, top: 0, width: 640, height: 480 } });
+  p.ctrlTouchDown(p.at(1, 320, 10)); await tick(620); p.ctrlTouchUp(p.at(1, 320, 10)); await tick(10);
+  if (p.sent.length) fail("hold on the bars " + JSON.stringify(p.sent));
+}
+// Taps only reach the panel in use, and only once its picture is the one on screen.
+{
+  const fns = ["panelKey", "deskPanel", "ctrlTarget"].map(grab).join("");
+  const check = (desk, live = true) => new Function("desk", "live", "ctrlMode", fns + "; return ctrlTarget();")(desk, live, () => "abs");
+  const a = { display: ":1", window: 5 }, b = { display: ":0", window: 5 };
+  const base = { panels: [a, b], loaded: true, pick: "", focus: ":1/5", shown: ":1/5" };
+  if (!check(base).ok) fail("target: shown and in use");
+  if (check({ ...base, shown: ":0/5" }).ok) fail("target: the picture is another panel with the same id");
+  if (!/Capture or Live/.test(check({ ...base, shown: null }, false).why)) fail("target: stale picture message");
+  if (check({ ...base, pick: ":0/5", shown: ":0/5" }).ok) fail("target: a watched panel that isn't in use");
+  if (check({ ...base, focus: null }).ok) fail("target: nothing in use");
+}
+// Focus moves to another panel mid-gesture: the tap or hold does nothing.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 100));
+  p.target.panel = { window: 43, display: ":1" };
+  p.ctrlTouchUp(p.at(1, 100, 100)); await tick(10);
+  p.target.panel = { window: 42, display: ":1" };
+  p.ctrlTouchDown(p.at(1, 100, 100));
+  p.target.panel = null;
+  await tick(620); p.ctrlTouchUp(p.at(1, 100, 100)); await tick(10);
+  if (p.sent.some(e => "button" in e)) fail("gesture outlived its panel " + JSON.stringify(p.sent));
+}
+// Trimming keeps a click together with its position.
+{
+  const p = page({ api: () => new Promise(() => {}) });
+  p.ctrlSend([{ dx: 1, dy: 0 }]);  // in flight forever
+  for (let i = 0; i < 100; i++) p.ctrlSend([{ scroll: [0, 1] }]);
+  p.ctrlSend([{ fx: 0.5, fy: 0.5, window: 42, display: ":1" }, { button: "left", down: true }, { button: "left", down: false }]);
+  for (let i = 0; i < 198; i++) p.ctrlSend([{ scroll: [0, 1] }]);
+  const q = p.ctrl.queue, i = q.findIndex(e => e.button === "left" && e.down);
+  if (i < 1 || !("fx" in q[i - 1])) fail("trim split a click from its position");
+}
+// Backing off holds for new input too.
+{
+  let calls = 0;
+  const p = page({ api: async () => { calls++; return { state: "error", sent: false }; } });
+  p.ctrlSend([{ button: "left", down: false }]);
+  await tick(5);
+  for (let i = 0; i < 10; i++) { p.ctrlSend([{ key: 30, down: false }]); await tick(2); }
+  if (calls !== 1) fail("new input bypassed the backoff: " + calls + " requests");
+  clearTimeout(p.ctrl.retry);
+}
+// A long paste goes in several requests, so a release never waits behind all of it.
+{
+  const batches = [];
+  const p = page({ api: async (path, body) => { batches.push(body.events); return { state: "ready", sent: true }; } });
+  p.ctrlText("y".repeat(450));
+  p.ctrlButton("left", false);
+  await tick(30);
+  if (!batches.every(b => b.reduce((a, e) => a + (e.text?.length || 0), 0) <= 100)) fail("a batch carried too much text");
+  if (batches.length < 5) fail("paste went in " + batches.length + " requests");
+}
+console.log("control gestures ok");

tests/page/pad_queue.mjs

@@ -0,0 +1,48 @@
+// The page's input queue, run in node against the real functions from ui/index.html.
+import { readFileSync } from "fs";
+const src = readFileSync(new URL("../../ui/index.html", import.meta.url), "utf8");
+const grab = name => src.match(new RegExp(`(?:const ${name} = [^\\n]*\\n)|((?:async )?function ${name}\\([\\s\\S]*?\\n}\\n)`))[0];
+const code = ["isMove", "padSend", "padKeep", "padFlush"].map(grab).join("");
+const fail = msg => { console.log("FAIL " + msg); process.exit(1); };
+
+function page(api) {
+  const pad = { state: "ready", queue: [], sending: false };
+  const shown = [];
+  const fns = new Function("pad", "api", "padShow", code + "; return { padSend, padFlush };")(pad, api, s => { shown.push(s); pad.state = s.state; });
+  return { pad, shown, ...fns };
+}
+
+// While a request is in flight, events queue by these rules.
+{
+  const { pad, padSend } = page(() => new Promise(() => {}));  // a request that never returns
+  const send = (state, e) => { pad.state = state; padSend(e); };
+  send("ready", { singlehold: true });     // goes out, and stays in flight
+  send("error", { dx: 3 });                // dropped: a stale move while broken
+  send("error", { singlerelease: true });  // kept
+  send("off", { singlerelease: true });    // off: nothing was held
+  send("pairing", { key: "a" });           // kept while reconnecting
+  send("pairing", { dx: 1 });              // dropped
+  for (let i = 0; i < 250; i++) send("pairing", { key: "x" });
+  send("pairing", { singlerelease: true }); // kept past the 200 cap
+  const q = pad.queue;
+  if (!(q[0].singlerelease && q[1].key === "a" && q.at(-1).singlerelease && !q.some(e => "dx" in e)
+        && q.filter(e => e.singlerelease).length === 2)) fail("queueing " + JSON.stringify(q.slice(0, 3)) + " len " + q.length);
+}
+
+// A request that fails, or reaches a link that had dropped, keeps its keys and releases.
+for (const [label, api] of [["request failed", async () => { throw new Error("offline"); }],
+                            ["not sent", async () => ({ state: "starting", sent: false })]]) {
+  const { pad, padSend, shown } = page(api);
+  padSend({ dx: 5 });  // sent and lost: a move, fine to drop
+  await new Promise(r => setTimeout(r, 0));
+  pad.state = "ready";
+  padSend({ singlerelease: true });
+  padSend({ dx: 7 });  // queued while that request is in flight: stale once it fails
+  padSend({ key: "b" });
+  await new Promise(r => setTimeout(r, 0));
+  const q = pad.queue;
+  if (!(q.some(e => e.singlerelease) && q.some(e => e.key === "b") && !q.some(e => "dx" in e)))
+    fail(label + ": " + JSON.stringify(q));
+  if (!shown.length || shown.at(-1).state === "ready") fail(label + ": state not shown");
+}
+console.log("queue rules ok");