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WebClient: 3.44 webcodecs offline (#15722)
* feat(web): zero-readback WebCodecs video path Decoded VideoFrames from js/src/webcodecs.js are handed to Flutter via window.onVideoFrame and imported GPU-side with createImageFromTextureSource; any failure unregisters the hook so the JS side falls back to RGBA readback. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(web): load bundled terminal font when Google CDNs are unreachable In air-gapped deployments GoogleFonts.robotoMono() cannot download the terminal font; when index.html signals offline mode, load the copy bundled with the web app under the family name google_fonts registers. Part of the fix for rustdesk/rustdesk-server-pro#996. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * ci: bump windows arm64 to Flutter 3.44.8, add web build patch script apply_flutter_3.44_web_patches.sh prepares a 3.44.x web build on top of the shared source patches: qr_code_scanner's web impl needs dart:ui_web for the removed platformViewRegistry, and flutter/web/fonts is refreshed to the font paths the 3.44 engine requests. The disabled build-rustdesk-web job runs it automatically once FLUTTER_VERSION moves to 3.44.x, and version-guarded 'Patch flutter' steps no longer fail when the guard does not match. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(web): prevent stale WebCodecs frames across sessions Signed-off-by: fufesou <linlong1266@gmail.com> * fix(web): harden WebCodecs reconnect and Flutter 3.44 patches Signed-off-by: fufesou <linlong1266@gmail.com> * fix(ci): harden Flutter 3.44 patch input validation Validate required files before checking patch state, parameterize the theme-range validator, and prevent missing inputs from satisfying NO_MATCHES checks. Signed-off-by: fufesou <linlong1266@gmail.com> * Remove unused code Signed-off-by: fufesou <linlong1266@gmail.com> * fix(web): retry font loading and dispose stale decoded images Signed-off-by: fufesou <linlong1266@gmail.com> * remove unused code Signed-off-by: fufesou <linlong1266@gmail.com> * fix(web): Bad state: RenderBox was not laid out Signed-off-by: fufesou <linlong1266@gmail.com> --------- Signed-off-by: fufesou <linlong1266@gmail.com> Co-authored-by: Claude Fable 5 <noreply@anthropic.com> Co-authored-by: fufesou <linlong1266@gmail.com>
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133
flutter/lib/models/web_video_frame_queue.dart
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133
flutter/lib/models/web_video_frame_queue.dart
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import 'dart:async';
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typedef VideoFrameImporter<Frame, Image> = Future<Image> Function(Frame frame);
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typedef VideoFrameCloser<Frame> = void Function(Frame frame);
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typedef VideoImageDisposer<Image> = void Function(Image image);
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typedef VideoSessionValidator = bool Function();
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typedef VideoImageCallback<Image> = Future<void> Function(
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int display, Image image, VideoSessionValidator isCurrentSession);
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typedef VideoQueueErrorCallback = void Function(
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Object error, StackTrace stackTrace);
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class WebVideoFrameQueue<Frame, Image> {
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WebVideoFrameQueue({
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required VideoFrameImporter<Frame, Image> importFrame,
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required VideoFrameCloser<Frame> closeFrame,
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required VideoImageDisposer<Image> disposeImage,
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required VideoQueueErrorCallback onImportError,
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required VideoQueueErrorCallback onCallbackError,
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}) : _importFrame = importFrame,
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_closeFrame = closeFrame,
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_disposeImage = disposeImage,
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_onImportError = onImportError,
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_onCallbackError = onCallbackError;
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final VideoFrameImporter<Frame, Image> _importFrame;
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final VideoFrameCloser<Frame> _closeFrame;
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final VideoImageDisposer<Image> _disposeImage;
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final VideoQueueErrorCallback _onImportError;
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final VideoQueueErrorCallback _onCallbackError;
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final Map<int, _QueuedFrame<Frame>> _pending = {};
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VideoImageCallback<Image>? _callback;
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int _generation = 0;
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bool _processing = false;
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bool _enabled = true;
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bool get isEnabled => _enabled;
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void beginSession(VideoImageCallback<Image> callback) {
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_invalidateSession();
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_enabled = true;
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_callback = callback;
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}
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void endSession() {
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_invalidateSession();
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_callback = null;
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}
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void _invalidateSession() {
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_generation++;
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for (final queued in _pending.values) {
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_closeFrame(queued.frame);
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}
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_pending.clear();
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}
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bool submit(int display, Frame frame) {
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if (!_enabled || _callback == null) {
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_closeFrame(frame);
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return false;
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}
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final replaced = _pending.remove(display);
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if (replaced != null) {
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_closeFrame(replaced.frame);
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}
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_pending[display] = _QueuedFrame(display, frame, _generation);
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_startProcessing();
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return true;
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}
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void _startProcessing() {
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if (_processing) return;
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_processing = true;
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unawaited(Future<void>(_process));
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}
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Future<void> _process() async {
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while (_pending.isNotEmpty) {
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final display = _pending.keys.first;
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final queued = _pending.remove(display)!;
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if (!_enabled || queued.generation != _generation) {
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_closeFrame(queued.frame);
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continue;
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}
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await _importAndDeliver(queued);
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}
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_processing = false;
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}
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Future<void> _importAndDeliver(_QueuedFrame<Frame> queued) async {
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Image? image;
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try {
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image = await _importFrame(queued.frame);
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} catch (error, stackTrace) {
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if (queued.generation == _generation) {
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_enabled = false;
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_onImportError(error, stackTrace);
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}
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} finally {
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_closeFrame(queued.frame);
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}
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if (image != null) {
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await _deliver(queued, image);
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}
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}
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Future<void> _deliver(_QueuedFrame<Frame> queued, Image image) async {
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final callback = _callback;
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bool isCurrentSession() =>
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_enabled &&
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queued.generation == _generation &&
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identical(callback, _callback);
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if (!isCurrentSession() || callback == null) {
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_disposeImage(image);
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return;
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}
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try {
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await callback(queued.display, image, isCurrentSession);
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} catch (error, stackTrace) {
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_disposeImage(image);
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_onCallbackError(error, stackTrace);
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}
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}
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}
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class _QueuedFrame<Frame> {
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const _QueuedFrame(this.display, this.frame, this.generation);
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final int display;
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final Frame frame;
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final int generation;
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}
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