Files
fluxer-desktop-patched/fluxer_desktop/native/win-game-capture/index.js
T
brenden 682afacd30 Add native self-hosted instance connection to fluxer_desktop
Trimmed monorepo checkout (fluxer_desktop + packages/voice_engine_v2 +
tools/ci) with a "Connect to a Different Server" menu item and popout
that lets the desktop app switch to any self-hosted Fluxer instance,
plus fixes for well-known discovery on single-domain self-hosted
deployments and a false-positive ERR_ABORTED on same-origin client
redirects during the switch. Defaults to chat.fluxr.chat and uses an
isolated userData directory from the official build.
2026-07-01 18:22:43 -04:00

470 lines
14 KiB
JavaScript

// SPDX-License-Identifier: AGPL-3.0-or-later
const {EventEmitter} = require('node:events');
const {existsSync} = require('node:fs');
const {join, sep} = require('node:path');
const {createNativeLoadError, loadNativeBinding} = require('./loader-diagnostics.cjs');
const MODULE_NAME = '@fluxer/win-game-capture';
const WINDOWS_GAME_CAPTURE_MODULE_ENV = 'FLUXER_WINDOWS_GAME_CAPTURE_MODULE_ENABLED';
function resolveNativeRoot() {
const asarSegment = `${sep}app.asar${sep}`;
if (!__dirname.includes(asarSegment)) return __dirname;
const unpackedDir = __dirname.replace(asarSegment, `${sep}app.asar.unpacked${sep}`);
return existsSync(unpackedDir) ? unpackedDir : __dirname;
}
function nativeFileName(arch) {
switch (arch) {
case 'x64':
return 'win-game-capture.win32-x64-msvc.node';
case 'arm64':
return 'win-game-capture.win32-arm64-msvc.node';
default:
return null;
}
}
let binding = null;
let loadError = null;
const nativeRoot = resolveNativeRoot();
if (process.platform === 'win32' && process.env[WINDOWS_GAME_CAPTURE_MODULE_ENV] !== 'true') {
loadError = createNativeLoadError({
moduleName: MODULE_NAME,
nativeRoot,
packageDir: __dirname,
reason: 'Windows game capture is disabled in this build',
});
} else if (process.platform === 'win32') {
const fileName = nativeFileName(process.arch);
if (!fileName) {
loadError = createNativeLoadError({
moduleName: MODULE_NAME,
nativeRoot,
packageDir: __dirname,
reason: `unsupported Windows architecture: ${process.arch}`,
});
} else {
const nativePath = join(nativeRoot, fileName);
const loaded = loadNativeBinding({
moduleName: MODULE_NAME,
nativePath,
nativeRoot,
packageDir: __dirname,
probe: false,
});
binding = loaded.binding;
loadError = loaded.loadError;
}
} else {
loadError = createNativeLoadError({
moduleName: MODULE_NAME,
nativeRoot,
packageDir: __dirname,
reason: `not supported on platform ${process.platform}`,
});
}
function gameHookFileName(arch) {
switch (arch) {
case 'x64':
return 'fluxer-game-hook.win32-x64-msvc.dll';
case 'ia32':
return 'fluxer-game-hook.win32-ia32-msvc.dll';
case 'arm64':
return 'fluxer-game-hook.win32-arm64-msvc.dll';
default:
return null;
}
}
function resolveGameHookPathForArch(arch, root = nativeRoot) {
if (process.platform !== 'win32') return null;
const fileName = gameHookFileName(arch);
if (!fileName) return null;
const hookPath = join(root, fileName);
return existsSync(hookPath) ? hookPath : null;
}
function resolveGameHookPath(root = nativeRoot) {
return resolveGameHookPathForArch(process.arch, root);
}
function resolveGameHookPathX86(root = nativeRoot) {
return resolveGameHookPathForArch('ia32', root);
}
function vulkanLayerManifestFileName(arch) {
switch (arch) {
case 'x64':
return 'fluxer-vulkan-layer.win32-x64-msvc.json';
case 'ia32':
return 'fluxer-vulkan-layer.win32-ia32-msvc.json';
case 'arm64':
return 'fluxer-vulkan-layer.win32-arm64-msvc.json';
default:
return null;
}
}
function resolveVulkanLayerManifestPath(root = nativeRoot) {
if (process.platform !== 'win32') return null;
const fileName = vulkanLayerManifestFileName(process.arch);
if (!fileName) return null;
const manifestPath = join(root, fileName);
return existsSync(manifestPath) ? manifestPath : null;
}
function registerVulkanLayerManifest(root = nativeRoot) {
if (!binding?.registerVulkanLayerManifest) return false;
const manifestPath = resolveVulkanLayerManifestPath(root);
if (!manifestPath) return false;
binding.registerVulkanLayerManifest(manifestPath);
return true;
}
function unregisterVulkanLayerManifest(root = nativeRoot) {
if (!binding?.unregisterVulkanLayerManifest) return false;
const manifestPath = resolveVulkanLayerManifestPath(root);
if (!manifestPath) return false;
try {
binding.unregisterVulkanLayerManifest(manifestPath);
return true;
} catch (error) {
console.warn('[win-game-capture] unregisterVulkanLayerManifest failed:', error?.message || error);
return false;
}
}
function getVulkanLayerRegistrationState(root = nativeRoot) {
const manifestPath = resolveVulkanLayerManifestPath(root);
if (!binding?.getVulkanLayerRegistrationState) {
return {registered: false, manifestExists: Boolean(manifestPath), dllExists: false, manifestPath};
}
try {
return binding.getVulkanLayerRegistrationState(manifestPath ?? '');
} catch (error) {
console.warn('[win-game-capture] getVulkanLayerRegistrationState failed:', error?.message || error);
return {registered: false, manifestExists: Boolean(manifestPath), dllExists: false, manifestPath};
}
}
if (process.platform === 'win32' && binding) {
try {
registerVulkanLayerManifest();
} catch (error) {
console.warn('[win-game-capture] registerVulkanLayerManifest failed:', error?.message || error);
}
}
class ScreenCapture extends EventEmitter {
constructor(options = {}) {
super();
if (!binding) {
throw loadError || new Error(`${MODULE_NAME} binding unavailable`);
}
this.sourceId = options.sourceId;
this.sourceKind = options.sourceKind ?? 'window';
this.width = options.width ?? 0;
this.height = options.height ?? 0;
this.frameRate = options.frameRate ?? 30;
this.hookDllPath = options.hookDllPath ?? resolveGameHookPath();
this.hookDllPathX86 = options.hookDllPathX86 ?? resolveGameHookPathX86();
this.injectionMethod = options.injectionMethod ?? undefined;
this.captureId = typeof options.captureId === 'string' ? options.captureId : undefined;
this.colorRange = options.colorRange;
this.colorSpace = options.colorSpace;
this.showCursorClicks = options.showCursorClicks === true;
this.captureRect = options.captureRect;
this.frameSinkHandle = options.frameSinkHandle;
this.nativeFrameSinkRequired = options.nativeFrameSinkRequired === true;
this.started = false;
this.stopped = false;
this.closedEmitted = false;
this.native = new binding.ScreenCapture();
this.native.setLifecycleCallback((...lifecycleArgs) => {
const [type, message] =
lifecycleArgs.length === 1 && Array.isArray(lifecycleArgs[0]) ? lifecycleArgs[0] : lifecycleArgs;
if (type === 'stalled') {
if (this.stopped) return;
this.emit('stalled', message);
return;
}
if (type === 'diagnostic') {
if (this.stopped) return;
this.emit('diagnostic', message);
return;
}
if (type === 'error') {
this.emit('error', new Error(message || 'DXGI capture error'));
return;
}
if (type === 'closed') {
if (this.stopped) {
this._emitClosedOnce();
return;
}
this.stopped = true;
try {
this.native.stop();
} catch {}
this._emitClosedOnce();
}
});
}
async start() {
if (this.started || this.stopped) return undefined;
if (this.sourceKind === 'game' && !this.hookDllPath) {
throw new Error(`Game capture hook unavailable for ${process.platform}-${process.arch}`);
}
this.started = true;
try {
if (this.frameSinkHandle != null) {
if (typeof this.native.setFrameSinkHandle !== 'function') {
throw new Error(`${MODULE_NAME} native binding does not support native frame sink handles`);
}
this.native.setFrameSinkHandle(this.frameSinkHandle);
} else if (this.nativeFrameSinkRequired) {
throw new Error('Native frame sink handle is required for Windows screen capture');
}
const result = this.native.start(
this.sourceId,
this.sourceKind,
this.width || undefined,
this.height || undefined,
this.frameRate || undefined,
this.sourceKind === 'game' ? this.hookDllPath : undefined,
this.sourceKind === 'game' ? (this.hookDllPathX86 ?? undefined) : undefined,
this.sourceKind === 'game' ? (this.injectionMethod ?? undefined) : undefined,
this.captureId,
{
colorRange: this.colorRange,
colorSpace: this.colorSpace,
showCursorClicks: this.showCursorClicks,
captureRect: this.captureRect,
},
);
return result
? {
width: result.width,
height: result.height,
frameRate: result.frameRate,
pixelFormat: result.pixelFormat,
}
: undefined;
} catch (error) {
this.stopped = true;
this.emit('error', error instanceof Error ? error : new Error(String(error)));
throw error;
}
}
async stop() {
if (this.stopped) return;
this.stopped = true;
try {
this.native.stop();
} finally {
this._emitClosedOnce();
}
}
getDiagnostics() {
if (!this.native || typeof this.native.getDiagnostics !== 'function') return null;
try {
return this.native.getDiagnostics() ?? null;
} catch (error) {
console.warn('[win-game-capture] getDiagnostics failed:', error?.message || error);
return null;
}
}
getSharedTextureHandle() {
if (!this.native || typeof this.native.getSharedTextureHandle !== 'function') return null;
try {
return this.native.getSharedTextureHandle() ?? null;
} catch (error) {
console.warn('[win-game-capture] getSharedTextureHandle failed:', error?.message || error);
return null;
}
}
attachEncoder(width, height) {
if (!this.native || typeof this.native.attachEncoder !== 'function') {
throw new Error(`${MODULE_NAME} native binding does not support encoder attachment`);
}
this.native.attachEncoder(width, height);
}
detachEncoder() {
if (!this.native || typeof this.native.detachEncoder !== 'function') return;
this.native.detachEncoder();
}
isEncoderAttached() {
if (!this.native || typeof this.native.isEncoderAttached !== 'function') return false;
return Boolean(this.native.isEncoderAttached());
}
encoderRingFullCount() {
if (!this.native || typeof this.native.encoderRingFullCount !== 'function') return 0;
const count = this.native.encoderRingFullCount();
return Number.isFinite(count) && count > 0 ? Math.floor(count) : 0;
}
getEncoderAttachDiagnostics() {
if (!this.native || typeof this.native.getEncoderAttachDiagnostics !== 'function') return null;
try {
return this.native.getEncoderAttachDiagnostics() ?? null;
} catch (error) {
console.warn('[win-game-capture] getEncoderAttachDiagnostics failed:', error?.message || error);
return null;
}
}
getFrameSinkDiagnostics() {
if (!this.native || typeof this.native.getFrameSinkDiagnostics !== 'function') {
return {
accepted: 0,
coalesced: 0,
rejected: 0,
mediaFramesDroppedWithoutSink: 0,
cpuFallbackFramesDropped: 0,
};
}
try {
return this.native.getFrameSinkDiagnostics();
} catch (error) {
console.warn('[win-game-capture] getFrameSinkDiagnostics failed:', error?.message || error);
return {
accepted: 0,
coalesced: 0,
rejected: 0,
mediaFramesDroppedWithoutSink: 0,
cpuFallbackFramesDropped: 0,
};
}
}
_emitClosedOnce() {
if (this.closedEmitted) return;
this.closedEmitted = true;
queueMicrotask(() => this.emit('closed'));
}
}
const FALLBACK_STRATEGY_NAMES = new Set(['game-hook', 'wgc', 'dxgi-duplication', 'window-gdi', 'none']);
function parseFallbackRecommendation(message) {
if (typeof message !== 'string') return null;
const match = message.match(/\[next-strategy=([a-z-]+)\]/);
if (!match) return null;
const name = match[1];
return FALLBACK_STRATEGY_NAMES.has(name) ? name : null;
}
async function listSources() {
if (!binding || typeof binding.listSources !== 'function') return [];
try {
const sources = await binding.listSources();
if (!Array.isArray(sources)) return [];
return sources
.filter((source) => {
return (
source &&
(source.kind === 'screen' || source.kind === 'window' || source.kind === 'game') &&
typeof source.id === 'string' &&
source.id.length > 0
);
})
.map((source) => ({
kind: source.kind,
id: source.id,
name: typeof source.name === 'string' && source.name.length > 0 ? source.name : source.id,
width: Number.isFinite(source.width) ? Math.max(0, Math.floor(source.width)) : 0,
height: Number.isFinite(source.height) ? Math.max(0, Math.floor(source.height)) : 0,
targetPid: Number.isFinite(source.targetPid) && source.targetPid > 0 ? Math.floor(source.targetPid) : undefined,
}));
} catch (error) {
console.warn('[win-game-capture] listSources failed:', error?.message || error);
return [];
}
}
function isSupported() {
if (!binding) return false;
return binding.isSupported();
}
function getAvailability() {
if (!binding) {
return {available: false, backend: 'windows-game-capture', reason: 'load-failed'};
}
return binding.getAvailability();
}
function normalizeProcessId(processId) {
if (processId === undefined || processId === null) return undefined;
if (Number.isInteger(processId) && processId > 0) return processId;
throw new TypeError(`Invalid process id: ${processId}`);
}
function normalizePriorityClass(priorityClass) {
if (priorityClass === undefined || priorityClass === null) return undefined;
const normalized = String(priorityClass).trim().toLowerCase();
if (normalized === 'real-time') return 'realtime';
if (normalized === 'high' || normalized === 'realtime') return normalized;
throw new TypeError(`Invalid GPU scheduling priority class: ${priorityClass}`);
}
function elevateGpuSchedulingPriority(processId, priorityClass) {
if (!binding) return false;
try {
binding.elevateGpuSchedulingPriority(normalizeProcessId(processId), normalizePriorityClass(priorityClass));
return true;
} catch (error) {
console.warn('[win-game-capture] elevateGpuSchedulingPriority failed:', error?.message || error);
return false;
}
}
function restoreGpuSchedulingPriority(processId) {
if (!binding) return false;
try {
binding.restoreGpuSchedulingPriority(normalizeProcessId(processId));
return true;
} catch (error) {
console.warn('[win-game-capture] restoreGpuSchedulingPriority failed:', error?.message || error);
return false;
}
}
function __setBindingForTests(nextBinding) {
binding = nextBinding;
loadError = null;
}
module.exports = {
isSupported,
getAvailability,
resolveGameHookPath,
resolveGameHookPathX86,
resolveVulkanLayerManifestPath,
registerVulkanLayerManifest,
unregisterVulkanLayerManifest,
getVulkanLayerRegistrationState,
listSources,
ScreenCapture,
parseFallbackRecommendation,
elevateGpuSchedulingPriority,
restoreGpuSchedulingPriority,
__setBindingForTests,
get loadError() {
return loadError;
},
};