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fl_engine.cc
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "flutter/shell/platform/linux/public/flutter_linux/fl_engine.h"
6
7 #include <gmodule.h>
8
9 #include <cstring>
10 #include <string>
11 #include <vector>
12
13 #include "flutter/common/constants.h"
14 #include "flutter/shell/platform/common/app_lifecycle_state.h"
15 #include "flutter/shell/platform/common/engine_switches.h"
16 #include "flutter/shell/platform/embedder/embedder.h"
17 #include "flutter/shell/platform/linux/fl_binary_messenger_private.h"
18 #include "flutter/shell/platform/linux/fl_dart_project_private.h"
19 #include "flutter/shell/platform/linux/fl_engine_private.h"
20 #include "flutter/shell/platform/linux/fl_pixel_buffer_texture_private.h"
21 #include "flutter/shell/platform/linux/fl_plugin_registrar_private.h"
22 #include "flutter/shell/platform/linux/fl_renderer.h"
23 #include "flutter/shell/platform/linux/fl_renderer_headless.h"
24 #include "flutter/shell/platform/linux/fl_settings_plugin.h"
25 #include "flutter/shell/platform/linux/fl_texture_gl_private.h"
26 #include "flutter/shell/platform/linux/fl_texture_registrar_private.h"
27 #include "flutter/shell/platform/linux/public/flutter_linux/fl_plugin_registry.h"
28 #include "flutter/shell/platform/linux/public/flutter_linux/fl_string_codec.h"
29
30 // Unique number associated with platform tasks.
31 static constexpr size_t kPlatformTaskRunnerIdentifier = 1;
32
33 // Use different device ID for mouse and pan/zoom events, since we can't
34 // differentiate the actual device (mouse v.s. trackpad)
35 static constexpr int32_t kMousePointerDeviceId = 0;
36 static constexpr int32_t kPointerPanZoomDeviceId = 1;
37
38 static constexpr const char* kFlutterLifecycleChannel = "flutter/lifecycle";
39
40 struct _FlEngine {
41 GObject parent_instance;
42
43 // Thread the GLib main loop is running on.
44 GThread* thread;
45
46 FlDartProject* project;
47 FlRenderer* renderer;
48 FlBinaryMessenger* binary_messenger;
49 FlSettingsPlugin* settings_plugin;
50 FlTextureRegistrar* texture_registrar;
51 FlTaskRunner* task_runner;
52 FlutterEngineAOTData aot_data;
53 FLUTTER_API_SYMBOL(FlutterEngine) engine;
54 FlutterEngineProcTable embedder_api;
55
56 // Function to call when a platform message is received.
57 FlEnginePlatformMessageHandler platform_message_handler;
58 gpointer platform_message_handler_data;
59 GDestroyNotify platform_message_handler_destroy_notify;
60
61 // Function to call when a semantic node is received.
62 FlEngineUpdateSemanticsNodeHandler update_semantics_node_handler;
63 gpointer update_semantics_node_handler_data;
64 GDestroyNotify update_semantics_node_handler_destroy_notify;
65
66 // Function to call right before the engine is restarted.
67 FlEngineOnPreEngineRestartHandler on_pre_engine_restart_handler;
68 gpointer on_pre_engine_restart_handler_data;
69 GDestroyNotify on_pre_engine_restart_handler_destroy_notify;
70 };
71
72 G_DEFINE_QUARK(fl_engine_error_quark, fl_engine_error)
73
74 static void fl_engine_plugin_registry_iface_init(
75 FlPluginRegistryInterface* iface);
76
77 G_DEFINE_TYPE_WITH_CODE(
78 FlEngine,
79 fl_engine,
80 G_TYPE_OBJECT,
81 G_IMPLEMENT_INTERFACE(fl_plugin_registry_get_type(),
82 fl_engine_plugin_registry_iface_init))
83
84 enum { kProp0, kPropBinaryMessenger, kPropLast };
85
86 // Parse a locale into its components.
87 static void parse_locale(const gchar* locale,
88 gchar** language,
89 gchar** territory,
90 gchar** codeset,
91 gchar** modifier) {
92 gchar* l = g_strdup(locale);
93
94 // Locales are in the form "language[_territory][.codeset][@modifier]"
95 gchar* match = strrchr(l, '@');
96 if (match != nullptr) {
97 if (modifier != nullptr) {
98 *modifier = g_strdup(match + 1);
99 }
100 *match = '\0';
101 } else if (modifier != nullptr) {
102 *modifier = nullptr;
103 }
104
105 match = strrchr(l, '.');
106 if (match != nullptr) {
107 if (codeset != nullptr) {
108 *codeset = g_strdup(match + 1);
109 }
110 *match = '\0';
111 } else if (codeset != nullptr) {
112 *codeset = nullptr;
113 }
114
115 match = strrchr(l, '_');
116 if (match != nullptr) {
117 if (territory != nullptr) {
118 *territory = g_strdup(match + 1);
119 }
120 *match = '\0';
121 } else if (territory != nullptr) {
122 *territory = nullptr;
123 }
124
125 if (language != nullptr) {
126 *language = l;
127 }
128 }
129
130 static void set_app_lifecycle_state(FlEngine* self,
131 const flutter::AppLifecycleState state) {
132 FlBinaryMessenger* binary_messenger = fl_engine_get_binary_messenger(self);
133
134 g_autoptr(FlValue) value =
135 fl_value_new_string(flutter::AppLifecycleStateToString(state));
136 g_autoptr(FlStringCodec) codec = fl_string_codec_new();
137 g_autoptr(GBytes) message =
138 fl_message_codec_encode_message(FL_MESSAGE_CODEC(codec), value, nullptr);
139
140 if (message == nullptr) {
141 return;
142 }
143
144 fl_binary_messenger_send_on_channel(binary_messenger,
145 kFlutterLifecycleChannel, message,
146 nullptr, nullptr, nullptr);
147 }
148
149 // Passes locale information to the Flutter engine.
150 static void setup_locales(FlEngine* self) {
151 const gchar* const* languages = g_get_language_names();
152 g_autoptr(GPtrArray) locales_array = g_ptr_array_new_with_free_func(g_free);
153 // Helper array to take ownership of the strings passed to Flutter.
154 g_autoptr(GPtrArray) locale_strings = g_ptr_array_new_with_free_func(g_free);
155 for (int i = 0; languages[i] != nullptr; i++) {
156 gchar *language, *territory;
157 parse_locale(languages[i], &language, &territory, nullptr, nullptr);
158 if (language != nullptr) {
159 g_ptr_array_add(locale_strings, language);
160 }
161 if (territory != nullptr) {
162 g_ptr_array_add(locale_strings, territory);
163 }
164
165 FlutterLocale* locale =
166 static_cast<FlutterLocale*>(g_malloc0(sizeof(FlutterLocale)));
167 g_ptr_array_add(locales_array, locale);
168 locale->struct_size = sizeof(FlutterLocale);
169 locale->language_code = language;
170 locale->country_code = territory;
171 locale->script_code = nullptr;
172 locale->variant_code = nullptr;
173 }
174 FlutterLocale** locales =
175 reinterpret_cast<FlutterLocale**>(locales_array->pdata);
176 FlutterEngineResult result = self->embedder_api.UpdateLocales(
177 self->engine, const_cast<const FlutterLocale**>(locales),
178 locales_array->len);
179 if (result != kSuccess) {
180 g_warning("Failed to set up Flutter locales");
181 }
182 }
183
184 // Called when engine needs a backing store for a specific #FlutterLayer.
185 static bool compositor_create_backing_store_callback(
186 const FlutterBackingStoreConfig* config,
187 FlutterBackingStore* backing_store_out,
188 void* user_data) {
189 g_return_val_if_fail(FL_IS_RENDERER(user_data), false);
190 return fl_renderer_create_backing_store(FL_RENDERER(user_data), config,
191 backing_store_out);
192 }
193
194 // Called when the backing store is to be released.
195 static bool compositor_collect_backing_store_callback(
196 const FlutterBackingStore* renderer,
197 void* user_data) {
198 g_return_val_if_fail(FL_IS_RENDERER(user_data), false);
199 return fl_renderer_collect_backing_store(FL_RENDERER(user_data), renderer);
200 }
201
202 // Called when embedder should composite contents of each layer onto the screen.
203 static bool compositor_present_layers_callback(const FlutterLayer** layers,
204 size_t layers_count,
205 void* user_data) {
206 g_return_val_if_fail(FL_IS_RENDERER(user_data), false);
207 return fl_renderer_present_layers(FL_RENDERER(user_data), layers,
208 layers_count);
209 }
210
211 // Flutter engine rendering callbacks.
212
213 static void* fl_engine_gl_proc_resolver(void* user_data, const char* name) {
214 FlEngine* self = static_cast<FlEngine*>(user_data);
215 return fl_renderer_get_proc_address(self->renderer, name);
216 }
217
218 static bool fl_engine_gl_make_current(void* user_data) {
219 FlEngine* self = static_cast<FlEngine*>(user_data);
220 g_autoptr(GError) error = nullptr;
221 gboolean result = fl_renderer_make_current(self->renderer, &error);
222 if (!result) {
223 g_warning("%s", error->message);
224 }
225 return result;
226 }
227
228 static bool fl_engine_gl_clear_current(void* user_data) {
229 FlEngine* self = static_cast<FlEngine*>(user_data);
230 g_autoptr(GError) error = nullptr;
231 gboolean result = fl_renderer_clear_current(self->renderer, &error);
232 if (!result) {
233 g_warning("%s", error->message);
234 }
235 return result;
236 }
237
238 static uint32_t fl_engine_gl_get_fbo(void* user_data) {
239 FlEngine* self = static_cast<FlEngine*>(user_data);
240 return fl_renderer_get_fbo(self->renderer);
241 }
242
243 static bool fl_engine_gl_present(void* user_data) {
244 // No action required, as this is handled in
245 // compositor_present_layers_callback.
246 return true;
247 }
248
249 static bool fl_engine_gl_make_resource_current(void* user_data) {
250 FlEngine* self = static_cast<FlEngine*>(user_data);
251 g_autoptr(GError) error = nullptr;
252 gboolean result = fl_renderer_make_resource_current(self->renderer, &error);
253 if (!result) {
254 g_warning("%s", error->message);
255 }
256 return result;
257 }
258
259 // Called by the engine to retrieve an external texture.
260 static bool fl_engine_gl_external_texture_frame_callback(
261 void* user_data,
262 int64_t texture_id,
263 size_t width,
264 size_t height,
265 FlutterOpenGLTexture* opengl_texture) {
266 FlEngine* self = static_cast<FlEngine*>(user_data);
267 if (!self->texture_registrar) {
268 return false;
269 }
270
271 FlTexture* texture =
272 fl_texture_registrar_lookup_texture(self->texture_registrar, texture_id);
273 if (texture == nullptr) {
274 g_warning("Unable to find texture %" G_GINT64_FORMAT, texture_id);
275 return false;
276 }
277
278 gboolean result;
279 g_autoptr(GError) error = nullptr;
280 if (FL_IS_TEXTURE_GL(texture)) {
281 result = fl_texture_gl_populate(FL_TEXTURE_GL(texture), width, height,
282 opengl_texture, &error);
283 } else if (FL_IS_PIXEL_BUFFER_TEXTURE(texture)) {
284 result =
285 fl_pixel_buffer_texture_populate(FL_PIXEL_BUFFER_TEXTURE(texture),
286 width, height, opengl_texture, &error);
287 } else {
288 g_warning("Unsupported texture type %" G_GINT64_FORMAT, texture_id);
289 return false;
290 }
291
292 if (!result) {
293 g_warning("%s", error->message);
294 return false;
295 }
296
297 return true;
298 }
299
300 // Called by the engine to determine if it is on the GTK thread.
301 static bool fl_engine_runs_task_on_current_thread(void* user_data) {
302 FlEngine* self = static_cast<FlEngine*>(user_data);
303 return self->thread == g_thread_self();
304 }
305
306 // Called when the engine has a task to perform in the GTK thread.
307 static void fl_engine_post_task(FlutterTask task,
308 uint64_t target_time_nanos,
309 void* user_data) {
310 FlEngine* self = static_cast<FlEngine*>(user_data);
311
312 fl_task_runner_post_task(self->task_runner, task, target_time_nanos);
313 }
314
315 // Called when a platform message is received from the engine.
316 static void fl_engine_platform_message_cb(const FlutterPlatformMessage* message,
317 void* user_data) {
318 FlEngine* self = FL_ENGINE(user_data);
319
320 gboolean handled = FALSE;
321 if (self->platform_message_handler != nullptr) {
322 g_autoptr(GBytes) data =
323 g_bytes_new(message->message, message->message_size);
324 handled = self->platform_message_handler(
325 self, message->channel, data, message->response_handle,
326 self->platform_message_handler_data);
327 }
328
329 if (!handled) {
330 fl_engine_send_platform_message_response(self, message->response_handle,
331 nullptr, nullptr);
332 }
333 }
334
335 // Called when a semantic node update is received from the engine.
336 static void fl_engine_update_semantics_node_cb(const FlutterSemanticsNode* node,
337 void* user_data) {
338 FlEngine* self = FL_ENGINE(user_data);
339
340 if (self->update_semantics_node_handler != nullptr) {
341 self->update_semantics_node_handler(
342 self, node, self->update_semantics_node_handler_data);
343 }
344 }
345
346 // Called right before the engine is restarted.
347 //
348 // This method should reset states to as if the engine has just been started,
349 // which usually indicates the user has requested a hot restart (Shift-R in the
350 // Flutter CLI.)
351 static void fl_engine_on_pre_engine_restart_cb(void* user_data) {
352 FlEngine* self = FL_ENGINE(user_data);
353
354 if (self->on_pre_engine_restart_handler != nullptr) {
355 self->on_pre_engine_restart_handler(
356 self, self->on_pre_engine_restart_handler_data);
357 }
358 }
359
360 // Called when a response to a sent platform message is received from the
361 // engine.
362 static void fl_engine_platform_message_response_cb(const uint8_t* data,
363 size_t data_length,
364 void* user_data) {
365 g_autoptr(GTask) task = G_TASK(user_data);
366 g_task_return_pointer(task, g_bytes_new(data, data_length),
367 reinterpret_cast<GDestroyNotify>(g_bytes_unref));
368 }
369
370 // Implements FlPluginRegistry::get_registrar_for_plugin.
371 static FlPluginRegistrar* fl_engine_get_registrar_for_plugin(
372 FlPluginRegistry* registry,
373 const gchar* name) {
374 FlEngine* self = FL_ENGINE(registry);
375
376 return fl_plugin_registrar_new(nullptr, self->binary_messenger,
377 self->texture_registrar);
378 }
379
380 static void fl_engine_plugin_registry_iface_init(
381 FlPluginRegistryInterface* iface) {
382 iface->get_registrar_for_plugin = fl_engine_get_registrar_for_plugin;
383 }
384
385 static void fl_engine_set_property(GObject* object,
386 guint prop_id,
387 const GValue* value,
388 GParamSpec* pspec) {
389 FlEngine* self = FL_ENGINE(object);
390 switch (prop_id) {
391 case kPropBinaryMessenger:
392 g_set_object(&self->binary_messenger,
393 FL_BINARY_MESSENGER(g_value_get_object(value)));
394 break;
395 default:
396 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
397 break;
398 }
399 }
400
401 static void fl_engine_dispose(GObject* object) {
402 FlEngine* self = FL_ENGINE(object);
403
404 if (self->engine != nullptr) {
405 self->embedder_api.Shutdown(self->engine);
406 self->engine = nullptr;
407 }
408
409 if (self->aot_data != nullptr) {
410 self->embedder_api.CollectAOTData(self->aot_data);
411 self->aot_data = nullptr;
412 }
413
414 g_clear_object(&self->project);
415 g_clear_object(&self->renderer);
416 g_clear_object(&self->texture_registrar);
417 g_clear_object(&self->binary_messenger);
418 g_clear_object(&self->settings_plugin);
419 g_clear_object(&self->task_runner);
420
421 if (self->platform_message_handler_destroy_notify) {
422 self->platform_message_handler_destroy_notify(
423 self->platform_message_handler_data);
424 }
425 self->platform_message_handler_data = nullptr;
426 self->platform_message_handler_destroy_notify = nullptr;
427
428 if (self->update_semantics_node_handler_destroy_notify) {
429 self->update_semantics_node_handler_destroy_notify(
430 self->update_semantics_node_handler_data);
431 }
432 self->update_semantics_node_handler_data = nullptr;
433 self->update_semantics_node_handler_destroy_notify = nullptr;
434
435 if (self->on_pre_engine_restart_handler_destroy_notify) {
436 self->on_pre_engine_restart_handler_destroy_notify(
437 self->on_pre_engine_restart_handler_data);
438 }
439 self->on_pre_engine_restart_handler_data = nullptr;
440 self->on_pre_engine_restart_handler_destroy_notify = nullptr;
441
442 G_OBJECT_CLASS(fl_engine_parent_class)->dispose(object);
443 }
444
445 static void fl_engine_class_init(FlEngineClass* klass) {
446 G_OBJECT_CLASS(klass)->dispose = fl_engine_dispose;
447 G_OBJECT_CLASS(klass)->set_property = fl_engine_set_property;
448
449 g_object_class_install_property(
450 G_OBJECT_CLASS(klass), kPropBinaryMessenger,
451 g_param_spec_object(
452 "binary-messenger", "messenger", "Binary messenger",
453 fl_binary_messenger_get_type(),
454 static_cast<GParamFlags>(G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
455 G_PARAM_STATIC_STRINGS)));
456 }
457
458 static void fl_engine_init(FlEngine* self) {
459 self->thread = g_thread_self();
460
461 self->embedder_api.struct_size = sizeof(FlutterEngineProcTable);
462 FlutterEngineGetProcAddresses(&self->embedder_api);
463
464 self->texture_registrar = fl_texture_registrar_new(self);
465 }
466
467 FlEngine* fl_engine_new(FlDartProject* project, FlRenderer* renderer) {
468 g_return_val_if_fail(FL_IS_DART_PROJECT(project), nullptr);
469 g_return_val_if_fail(FL_IS_RENDERER(renderer), nullptr);
470
471 FlEngine* self = FL_ENGINE(g_object_new(fl_engine_get_type(), nullptr));
472 self->project = FL_DART_PROJECT(g_object_ref(project));
473 self->renderer = FL_RENDERER(g_object_ref(renderer));
474 self->binary_messenger = fl_binary_messenger_new(self);
475 return self;
476 }
477
478 G_MODULE_EXPORT FlEngine* fl_engine_new_headless(FlDartProject* project) {
479 g_autoptr(FlRendererHeadless) renderer = fl_renderer_headless_new();
480 return fl_engine_new(project, FL_RENDERER(renderer));
481 }
482
483 gboolean fl_engine_start(FlEngine* self, GError** error) {
484 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
485
486 self->task_runner = fl_task_runner_new(self);
487
488 FlutterRendererConfig config = {};
489 config.type = kOpenGL;
490 config.open_gl.struct_size = sizeof(FlutterOpenGLRendererConfig);
491 config.open_gl.gl_proc_resolver = fl_engine_gl_proc_resolver;
492 config.open_gl.make_current = fl_engine_gl_make_current;
493 config.open_gl.clear_current = fl_engine_gl_clear_current;
494 config.open_gl.fbo_callback = fl_engine_gl_get_fbo;
495 config.open_gl.present = fl_engine_gl_present;
496 config.open_gl.make_resource_current = fl_engine_gl_make_resource_current;
497 config.open_gl.gl_external_texture_frame_callback =
498 fl_engine_gl_external_texture_frame_callback;
499
500 FlutterTaskRunnerDescription platform_task_runner = {};
501 platform_task_runner.struct_size = sizeof(FlutterTaskRunnerDescription);
502 platform_task_runner.user_data = self;
503 platform_task_runner.runs_task_on_current_thread_callback =
504 fl_engine_runs_task_on_current_thread;
505 platform_task_runner.post_task_callback = fl_engine_post_task;
506 platform_task_runner.identifier = kPlatformTaskRunnerIdentifier;
507
508 FlutterCustomTaskRunners custom_task_runners = {};
509 custom_task_runners.struct_size = sizeof(FlutterCustomTaskRunners);
510 custom_task_runners.platform_task_runner = &platform_task_runner;
511 custom_task_runners.render_task_runner = &platform_task_runner;
512
513 g_autoptr(GPtrArray) command_line_args = fl_engine_get_switches(self);
514 // FlutterProjectArgs expects a full argv, so when processing it for flags
515 // the first item is treated as the executable and ignored. Add a dummy value
516 // so that all switches are used.
517 g_ptr_array_insert(command_line_args, 0, g_strdup("flutter"));
518
519 gchar** dart_entrypoint_args =
520 fl_dart_project_get_dart_entrypoint_arguments(self->project);
521
522 FlutterProjectArgs args = {};
523 args.struct_size = sizeof(FlutterProjectArgs);
524 args.assets_path = fl_dart_project_get_assets_path(self->project);
525 args.icu_data_path = fl_dart_project_get_icu_data_path(self->project);
526 args.command_line_argc = command_line_args->len;
527 args.command_line_argv =
528 reinterpret_cast<const char* const*>(command_line_args->pdata);
529 args.platform_message_callback = fl_engine_platform_message_cb;
530 args.update_semantics_node_callback = fl_engine_update_semantics_node_cb;
531 args.custom_task_runners = &custom_task_runners;
532 args.shutdown_dart_vm_when_done = true;
533 args.on_pre_engine_restart_callback = fl_engine_on_pre_engine_restart_cb;
534 args.dart_entrypoint_argc =
535 dart_entrypoint_args != nullptr ? g_strv_length(dart_entrypoint_args) : 0;
536 args.dart_entrypoint_argv =
537 reinterpret_cast<const char* const*>(dart_entrypoint_args);
538
539 FlutterCompositor compositor = {};
540 compositor.struct_size = sizeof(FlutterCompositor);
541 compositor.user_data = self->renderer;
542 compositor.create_backing_store_callback =
543 compositor_create_backing_store_callback;
544 compositor.collect_backing_store_callback =
545 compositor_collect_backing_store_callback;
546 compositor.present_layers_callback = compositor_present_layers_callback;
547 args.compositor = &compositor;
548
549 if (self->embedder_api.RunsAOTCompiledDartCode()) {
550 FlutterEngineAOTDataSource source = {};
551 source.type = kFlutterEngineAOTDataSourceTypeElfPath;
552 source.elf_path = fl_dart_project_get_aot_library_path(self->project);
553 if (self->embedder_api.CreateAOTData(&source, &self->aot_data) !=
554 kSuccess) {
555 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
556 "Failed to create AOT data");
557 return FALSE;
558 }
559 args.aot_data = self->aot_data;
560 }
561
562 FlutterEngineResult result = self->embedder_api.Initialize(
563 FLUTTER_ENGINE_VERSION, &config, &args, self, &self->engine);
564 if (result != kSuccess) {
565 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
566 "Failed to initialize Flutter engine");
567 return FALSE;
568 }
569
570 result = self->embedder_api.RunInitialized(self->engine);
571 if (result != kSuccess) {
572 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
573 "Failed to run Flutter engine");
574 return FALSE;
575 }
576
577 setup_locales(self);
578
579 g_autoptr(FlSettings) settings = fl_settings_new();
580 self->settings_plugin = fl_settings_plugin_new(self);
581 fl_settings_plugin_start(self->settings_plugin, settings);
582
583 result = self->embedder_api.UpdateSemanticsEnabled(self->engine, TRUE);
584 if (result != kSuccess) {
585 g_warning("Failed to enable accessibility features on Flutter engine");
586 }
587
588 return TRUE;
589 }
590
591 FlutterEngineProcTable* fl_engine_get_embedder_api(FlEngine* self) {
592 return &(self->embedder_api);
593 }
594
595 void fl_engine_set_platform_message_handler(
596 FlEngine* self,
597 FlEnginePlatformMessageHandler handler,
598 gpointer user_data,
599 GDestroyNotify destroy_notify) {
600 g_return_if_fail(FL_IS_ENGINE(self));
601 g_return_if_fail(handler != nullptr);
602
603 if (self->platform_message_handler_destroy_notify) {
604 self->platform_message_handler_destroy_notify(
605 self->platform_message_handler_data);
606 }
607
608 self->platform_message_handler = handler;
609 self->platform_message_handler_data = user_data;
610 self->platform_message_handler_destroy_notify = destroy_notify;
611 }
612
613 void fl_engine_set_update_semantics_node_handler(
614 FlEngine* self,
615 FlEngineUpdateSemanticsNodeHandler handler,
616 gpointer user_data,
617 GDestroyNotify destroy_notify) {
618 g_return_if_fail(FL_IS_ENGINE(self));
619
620 if (self->update_semantics_node_handler_destroy_notify) {
621 self->update_semantics_node_handler_destroy_notify(
622 self->update_semantics_node_handler_data);
623 }
624
625 self->update_semantics_node_handler = handler;
626 self->update_semantics_node_handler_data = user_data;
627 self->update_semantics_node_handler_destroy_notify = destroy_notify;
628 }
629
630 void fl_engine_set_on_pre_engine_restart_handler(
631 FlEngine* self,
632 FlEngineOnPreEngineRestartHandler handler,
633 gpointer user_data,
634 GDestroyNotify destroy_notify) {
635 g_return_if_fail(FL_IS_ENGINE(self));
636
637 if (self->on_pre_engine_restart_handler_destroy_notify) {
638 self->on_pre_engine_restart_handler_destroy_notify(
639 self->on_pre_engine_restart_handler_data);
640 }
641
642 self->on_pre_engine_restart_handler = handler;
643 self->on_pre_engine_restart_handler_data = user_data;
644 self->on_pre_engine_restart_handler_destroy_notify = destroy_notify;
645 }
646
647 // Note: This function can be called from any thread.
648 gboolean fl_engine_send_platform_message_response(
649 FlEngine* self,
650 const FlutterPlatformMessageResponseHandle* handle,
651 GBytes* response,
652 GError** error) {
653 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
654 g_return_val_if_fail(handle != nullptr, FALSE);
655
656 if (self->engine == nullptr) {
657 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
658 "No engine to send response to");
659 return FALSE;
660 }
661
662 gsize data_length = 0;
663 const uint8_t* data = nullptr;
664 if (response != nullptr) {
665 data =
666 static_cast<const uint8_t*>(g_bytes_get_data(response, &data_length));
667 }
668 FlutterEngineResult result = self->embedder_api.SendPlatformMessageResponse(
669 self->engine, handle, data, data_length);
670
671 if (result != kSuccess) {
672 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
673 "Failed to send platform message response");
674 return FALSE;
675 }
676
677 return TRUE;
678 }
679
680 void fl_engine_send_platform_message(FlEngine* self,
681 const gchar* channel,
682 GBytes* message,
683 GCancellable* cancellable,
684 GAsyncReadyCallback callback,
685 gpointer user_data) {
686 g_return_if_fail(FL_IS_ENGINE(self));
687
688 GTask* task = nullptr;
689 FlutterPlatformMessageResponseHandle* response_handle = nullptr;
690 if (callback != nullptr) {
691 task = g_task_new(self, cancellable, callback, user_data);
692
693 if (self->engine == nullptr) {
694 g_task_return_new_error(task, fl_engine_error_quark(),
695 FL_ENGINE_ERROR_FAILED, "No engine to send to");
696 return;
697 }
698
699 FlutterEngineResult result =
700 self->embedder_api.PlatformMessageCreateResponseHandle(
701 self->engine, fl_engine_platform_message_response_cb, task,
702 &response_handle);
703 if (result != kSuccess) {
704 g_task_return_new_error(task, fl_engine_error_quark(),
705 FL_ENGINE_ERROR_FAILED,
706 "Failed to create response handle");
707 g_object_unref(task);
708 return;
709 }
710 } else if (self->engine == nullptr) {
711 return;
712 }
713
714 FlutterPlatformMessage fl_message = {};
715 fl_message.struct_size = sizeof(fl_message);
716 fl_message.channel = channel;
717 fl_message.message =
718 message != nullptr
719 ? static_cast<const uint8_t*>(g_bytes_get_data(message, nullptr))
720 : nullptr;
721 fl_message.message_size = message != nullptr ? g_bytes_get_size(message) : 0;
722 fl_message.response_handle = response_handle;
723 FlutterEngineResult result =
724 self->embedder_api.SendPlatformMessage(self->engine, &fl_message);
725
726 if (result != kSuccess && task != nullptr) {
727 g_task_return_new_error(task, fl_engine_error_quark(),
728 FL_ENGINE_ERROR_FAILED,
729 "Failed to send platform messages");
730 g_object_unref(task);
731 }
732
733 if (response_handle != nullptr) {
734 self->embedder_api.PlatformMessageReleaseResponseHandle(self->engine,
735 response_handle);
736 }
737 }
738
739 GBytes* fl_engine_send_platform_message_finish(FlEngine* self,
740 GAsyncResult* result,
741 GError** error) {
742 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
743 g_return_val_if_fail(g_task_is_valid(result, self), FALSE);
744
745 return static_cast<GBytes*>(g_task_propagate_pointer(G_TASK(result), error));
746 }
747
748 void fl_engine_send_window_state_event(FlEngine* self,
749 gboolean visible,
750 gboolean focused) {
751 if (visible && focused) {
752 set_app_lifecycle_state(self, flutter::AppLifecycleState::kResumed);
753 } else if (visible) {
754 set_app_lifecycle_state(self, flutter::AppLifecycleState::kInactive);
755 } else {
756 set_app_lifecycle_state(self, flutter::AppLifecycleState::kHidden);
757 }
758 }
759
760 void fl_engine_send_window_metrics_event(FlEngine* self,
761 size_t width,
762 size_t height,
763 double pixel_ratio) {
764 g_return_if_fail(FL_IS_ENGINE(self));
765
766 if (self->engine == nullptr) {
767 return;
768 }
769
770 FlutterWindowMetricsEvent event = {};
771 event.struct_size = sizeof(FlutterWindowMetricsEvent);
772 event.width = width;
773 event.height = height;
774 event.pixel_ratio = pixel_ratio;
775 self->embedder_api.SendWindowMetricsEvent(self->engine, &event);
776 }
777
778 void fl_engine_send_mouse_pointer_event(FlEngine* self,
779 FlutterPointerPhase phase,
780 size_t timestamp,
781 double x,
782 double y,
783 double scroll_delta_x,
784 double scroll_delta_y,
785 int64_t buttons) {
786 g_return_if_fail(FL_IS_ENGINE(self));
787
788 if (self->engine == nullptr) {
789 return;
790 }
791
792 FlutterPointerEvent fl_event = {};
793 fl_event.struct_size = sizeof(fl_event);
794 fl_event.phase = phase;
795 fl_event.timestamp = timestamp;
796 fl_event.x = x;
797 fl_event.y = y;
798 if (scroll_delta_x != 0 || scroll_delta_y != 0) {
799 fl_event.signal_kind = kFlutterPointerSignalKindScroll;
800 }
801 fl_event.scroll_delta_x = scroll_delta_x;
802 fl_event.scroll_delta_y = scroll_delta_y;
803 fl_event.device_kind = kFlutterPointerDeviceKindMouse;
804 fl_event.buttons = buttons;
805 fl_event.device = kMousePointerDeviceId;
806 // TODO(dkwingsmt): Assign the correct view ID once the Linux embedder
807 // supports multiple views.
808 // https://github.com/flutter/flutter/issues/138178
809 fl_event.view_id = flutter::kFlutterImplicitViewId;
810 self->embedder_api.SendPointerEvent(self->engine, &fl_event, 1);
811 }
812
813 void fl_engine_send_pointer_pan_zoom_event(FlEngine* self,
814 size_t timestamp,
815 double x,
816 double y,
817 FlutterPointerPhase phase,
818 double pan_x,
819 double pan_y,
820 double scale,
821 double rotation) {
822 g_return_if_fail(FL_IS_ENGINE(self));
823
824 if (self->engine == nullptr) {
825 return;
826 }
827
828 FlutterPointerEvent fl_event = {};
829 fl_event.struct_size = sizeof(fl_event);
830 fl_event.timestamp = timestamp;
831 fl_event.x = x;
832 fl_event.y = y;
833 fl_event.phase = phase;
834 fl_event.pan_x = pan_x;
835 fl_event.pan_y = pan_y;
836 fl_event.scale = scale;
837 fl_event.rotation = rotation;
838 fl_event.device = kPointerPanZoomDeviceId;
839 fl_event.device_kind = kFlutterPointerDeviceKindTrackpad;
840 // TODO(dkwingsmt): Assign the correct view ID once the Linux embedder
841 // supports multiple views.
842 // https://github.com/flutter/flutter/issues/138178
843 fl_event.view_id = flutter::kFlutterImplicitViewId;
844 self->embedder_api.SendPointerEvent(self->engine, &fl_event, 1);
845 }
846
847 void fl_engine_send_key_event(FlEngine* self,
848 const FlutterKeyEvent* event,
849 FlutterKeyEventCallback callback,
850 void* user_data) {
851 g_return_if_fail(FL_IS_ENGINE(self));
852
853 if (self->engine == nullptr) {
854 return;
855 }
856
857 self->embedder_api.SendKeyEvent(self->engine, event, callback, user_data);
858 }
859
860 void fl_engine_dispatch_semantics_action(FlEngine* self,
861 uint64_t id,
862 FlutterSemanticsAction action,
863 GBytes* data) {
864 g_return_if_fail(FL_IS_ENGINE(self));
865
866 if (self->engine == nullptr) {
867 return;
868 }
869
870 const uint8_t* action_data = nullptr;
871 size_t action_data_length = 0;
872 if (data != nullptr) {
873 action_data = static_cast<const uint8_t*>(
874 g_bytes_get_data(data, &action_data_length));
875 }
876
877 self->embedder_api.DispatchSemanticsAction(self->engine, id, action,
878 action_data, action_data_length);
879 }
880
881 gboolean fl_engine_mark_texture_frame_available(FlEngine* self,
882 int64_t texture_id) {
883 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
884 return self->embedder_api.MarkExternalTextureFrameAvailable(
885 self->engine, texture_id) == kSuccess;
886 }
887
888 gboolean fl_engine_register_external_texture(FlEngine* self,
889 int64_t texture_id) {
890 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
891 return self->embedder_api.RegisterExternalTexture(self->engine, texture_id) ==
892 kSuccess;
893 }
894
895 gboolean fl_engine_unregister_external_texture(FlEngine* self,
896 int64_t texture_id) {
897 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
898 return self->embedder_api.UnregisterExternalTexture(self->engine,
899 texture_id) == kSuccess;
900 }
901
902 G_MODULE_EXPORT FlBinaryMessenger* fl_engine_get_binary_messenger(
903 FlEngine* self) {
904 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
905 return self->binary_messenger;
906 }
907
908 FlTaskRunner* fl_engine_get_task_runner(FlEngine* self) {
909 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
910 return self->task_runner;
911 }
912
913 void fl_engine_execute_task(FlEngine* self, FlutterTask* task) {
914 g_return_if_fail(FL_IS_ENGINE(self));
915 self->embedder_api.RunTask(self->engine, task);
916 }
917
918 G_MODULE_EXPORT FlTextureRegistrar* fl_engine_get_texture_registrar(
919 FlEngine* self) {
920 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
921 return self->texture_registrar;
922 }
923
924 void fl_engine_update_accessibility_features(FlEngine* self, int32_t flags) {
925 g_return_if_fail(FL_IS_ENGINE(self));
926
927 if (self->engine == nullptr) {
928 return;
929 }
930
931 self->embedder_api.UpdateAccessibilityFeatures(
932 self->engine, static_cast<FlutterAccessibilityFeature>(flags));
933 }
934
935 GPtrArray* fl_engine_get_switches(FlEngine* self) {
936 GPtrArray* switches = g_ptr_array_new_with_free_func(g_free);
937 for (const auto& env_switch : flutter::GetSwitchesFromEnvironment()) {
938 g_ptr_array_add(switches, g_strdup(env_switch.c_str()));
939 }
940 return switches;
941 }
_FlEngine::platform_message_handler_data
gpointer platform_message_handler_data
Definition: fl_engine.cc:58
fl_engine_set_platform_message_handler
void fl_engine_set_platform_message_handler(FlEngine *self, FlEnginePlatformMessageHandler handler, gpointer user_data, GDestroyNotify destroy_notify)
Definition: fl_engine.cc:595
fl_dart_project_get_aot_library_path
const G_MODULE_EXPORT gchar * fl_dart_project_get_aot_library_path(FlDartProject *self)
Definition: fl_dart_project.cc:72
_FlEngine::update_semantics_node_handler_destroy_notify
GDestroyNotify update_semantics_node_handler_destroy_notify
Definition: fl_engine.cc:64
FlEnginePlatformMessageHandler
gboolean(* FlEnginePlatformMessageHandler)(FlEngine *engine, const gchar *channel, GBytes *message, const FlutterPlatformMessageResponseHandle *response_handle, gpointer user_data)
Definition: fl_engine_private.h:43
event
FlKeyEvent * event
Definition: fl_key_channel_responder.cc:118
flutter::AppLifecycleState::kHidden
@ kHidden
fl_engine_get_embedder_api
FlutterEngineProcTable * fl_engine_get_embedder_api(FlEngine *self)
Definition: fl_engine.cc:591
_FlEngine::embedder_api
FlutterEngineProcTable embedder_api
Definition: fl_engine.cc:54
fl_engine_init
static void fl_engine_init(FlEngine *self)
Definition: fl_engine.cc:458
fl_engine_update_semantics_node_cb
static void fl_engine_update_semantics_node_cb(const FlutterSemanticsNode *node, void *user_data)
Definition: fl_engine.cc:336
fl_engine_platform_message_response_cb
static void fl_engine_platform_message_response_cb(const uint8_t *data, size_t data_length, void *user_data)
Definition: fl_engine.cc:362
fl_settings_plugin.h
fl_engine_gl_get_fbo
static uint32_t fl_engine_gl_get_fbo(void *user_data)
Definition: fl_engine.cc:238
_FlEngine::renderer
FlRenderer * renderer
Definition: fl_engine.cc:47
fl_engine_send_key_event
void fl_engine_send_key_event(FlEngine *self, const FlutterKeyEvent *event, FlutterKeyEventCallback callback, void *user_data)
Definition: fl_engine.cc:847
fl_engine_gl_make_resource_current
static bool fl_engine_gl_make_resource_current(void *user_data)
Definition: fl_engine.cc:249
FL_ENGINE_ERROR_FAILED
@ FL_ENGINE_ERROR_FAILED
Definition: fl_engine_private.h:25
kMousePointerDeviceId
static constexpr int32_t kMousePointerDeviceId
Definition: fl_engine.cc:35
fl_engine_update_accessibility_features
void fl_engine_update_accessibility_features(FlEngine *self, int32_t flags)
Definition: fl_engine.cc:924
set_app_lifecycle_state
static void set_app_lifecycle_state(FlEngine *self, const flutter::AppLifecycleState state)
Definition: fl_engine.cc:130
fl_plugin_registrar_private.h
fl_texture_gl_private.h
fl_texture_registrar_lookup_texture
FlTexture * fl_texture_registrar_lookup_texture(FlTextureRegistrar *self, int64_t texture_id)
Definition: fl_texture_registrar.cc:191
fl_engine_send_mouse_pointer_event
void fl_engine_send_mouse_pointer_event(FlEngine *self, FlutterPointerPhase phase, size_t timestamp, double x, double y, double scroll_delta_x, double scroll_delta_y, int64_t buttons)
Definition: fl_engine.cc:778
compositor_collect_backing_store_callback
static bool compositor_collect_backing_store_callback(const FlutterBackingStore *renderer, void *user_data)
Definition: fl_engine.cc:195
fl_engine_new_headless
G_MODULE_EXPORT FlEngine * fl_engine_new_headless(FlDartProject *project)
Definition: fl_engine.cc:478
fl_string_codec.h
fl_settings_new
FlSettings * fl_settings_new()
Definition: fl_settings.cc:55
FlValue
typedefG_BEGIN_DECLS struct _FlValue FlValue
Definition: fl_value.h:40
fl_renderer_clear_current
gboolean fl_renderer_clear_current(FlRenderer *self, GError **error)
Definition: fl_renderer.cc:115
_FlEngine::aot_data
FlutterEngineAOTData aot_data
Definition: fl_engine.cc:52
fl_engine_gl_present
static bool fl_engine_gl_present(void *user_data)
Definition: fl_engine.cc:243
flags
FlutterSemanticsFlag flags
Definition: fl_accessible_node.cc:105
fl_engine_dispose
static void fl_engine_dispose(GObject *object)
Definition: fl_engine.cc:401
fl_engine_mark_texture_frame_available
gboolean fl_engine_mark_texture_frame_available(FlEngine *self, int64_t texture_id)
Definition: fl_engine.cc:881
user_data
FlKeyEvent uint64_t FlKeyResponderAsyncCallback gpointer user_data
Definition: fl_key_channel_responder.cc:121
fl_engine_dispatch_semantics_action
void fl_engine_dispatch_semantics_action(FlEngine *self, uint64_t id, FlutterSemanticsAction action, GBytes *data)
Definition: fl_engine.cc:860
fl_texture_registrar_new
FlTextureRegistrar * fl_texture_registrar_new(FlEngine *engine)
Definition: fl_texture_registrar.cc:216
fl_engine_send_window_metrics_event
void fl_engine_send_window_metrics_event(FlEngine *self, size_t width, size_t height, double pixel_ratio)
Definition: fl_engine.cc:760
fl_engine_on_pre_engine_restart_cb
static void fl_engine_on_pre_engine_restart_cb(void *user_data)
Definition: fl_engine.cc:351
fl_renderer_headless.h
fl_dart_project_get_assets_path
const G_MODULE_EXPORT gchar * fl_dart_project_get_assets_path(FlDartProject *self)
Definition: fl_dart_project.cc:85
height
G_BEGIN_DECLS int height
Definition: fl_backing_store_provider.h:37
fl_engine_get_binary_messenger
G_MODULE_EXPORT FlBinaryMessenger * fl_engine_get_binary_messenger(FlEngine *self)
Definition: fl_engine.cc:902
_FlEngine::on_pre_engine_restart_handler
FlEngineOnPreEngineRestartHandler on_pre_engine_restart_handler
Definition: fl_engine.cc:67
fl_renderer_get_proc_address
void * fl_renderer_get_proc_address(FlRenderer *self, const char *name)
Definition: fl_renderer.cc:91
state
AtkStateType state
Definition: fl_accessible_node.cc:10
fl_binary_messenger_new
FlBinaryMessenger * fl_binary_messenger_new(FlEngine *engine)
Definition: fl_binary_messenger.cc:406
fl_settings_plugin_start
void fl_settings_plugin_start(FlSettingsPlugin *self, FlSettings *settings)
Definition: fl_settings_plugin.cc:112
kPlatformTaskRunnerIdentifier
static constexpr size_t kPlatformTaskRunnerIdentifier
Definition: fl_engine.cc:31
fl_renderer_make_resource_current
gboolean fl_renderer_make_resource_current(FlRenderer *self, GError **error)
Definition: fl_renderer.cc:105
kPropLast
@ kPropLast
Definition: fl_accessible_node.cc:83
_FlEngine::update_semantics_node_handler
FlEngineUpdateSemanticsNodeHandler update_semantics_node_handler
Definition: fl_engine.cc:62
_FlEngine::project
FlDartProject * project
Definition: fl_engine.cc:46
_FlEngine::on_pre_engine_restart_handler_destroy_notify
GDestroyNotify on_pre_engine_restart_handler_destroy_notify
Definition: fl_engine.cc:69
app_lifecycle_state.h
_FlEngine::settings_plugin
FlSettingsPlugin * settings_plugin
Definition: fl_engine.cc:49
fl_engine_set_property
static void fl_engine_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
Definition: fl_engine.cc:385
_FlEngine
Definition: fl_engine.cc:40
fl_engine_set_update_semantics_node_handler
void fl_engine_set_update_semantics_node_handler(FlEngine *self, FlEngineUpdateSemanticsNodeHandler handler, gpointer user_data, GDestroyNotify destroy_notify)
Definition: fl_engine.cc:613
G_DEFINE_QUARK
G_DEFINE_QUARK(fl_binary_messenger_codec_error_quark, fl_binary_messenger_codec_error) G_DECLARE_FINAL_TYPE(FlBinaryMessengerImpl
G_DEFINE_TYPE_WITH_CODE
G_DEFINE_TYPE_WITH_CODE(FlEngine, fl_engine, G_TYPE_OBJECT, G_IMPLEMENT_INTERFACE(fl_plugin_registry_get_type(), fl_engine_plugin_registry_iface_init)) enum
Definition: fl_engine.cc:77
fl_engine_send_pointer_pan_zoom_event
void fl_engine_send_pointer_pan_zoom_event(FlEngine *self, size_t timestamp, double x, double y, FlutterPointerPhase phase, double pan_x, double pan_y, double scale, double rotation)
Definition: fl_engine.cc:813
flutter::AppLifecycleState::kInactive
@ kInactive
fl_engine_new
FlEngine * fl_engine_new(FlDartProject *project, FlRenderer *renderer)
Definition: fl_engine.cc:467
fl_renderer_collect_backing_store
gboolean fl_renderer_collect_backing_store(FlRenderer *self, const FlutterBackingStore *backing_store)
Definition: fl_renderer.cc:133
fl_pixel_buffer_texture_populate
gboolean fl_pixel_buffer_texture_populate(FlPixelBufferTexture *texture, uint32_t width, uint32_t height, FlutterOpenGLTexture *opengl_texture, GError **error)
Definition: fl_pixel_buffer_texture.cc:71
fl_renderer_present_layers
gboolean fl_renderer_present_layers(FlRenderer *self, const FlutterLayer **layers, size_t layers_count)
Definition: fl_renderer.cc:157
fl_renderer_headless_new
FlRendererHeadless * fl_renderer_headless_new()
Definition: fl_renderer_headless.cc:57
fl_task_runner_post_task
void fl_task_runner_post_task(FlTaskRunner *self, FlutterTask task, uint64_t target_time_nanos)
Definition: fl_task_runner.cc:169
fl_engine_plugin_registry_iface_init
static void fl_engine_plugin_registry_iface_init(FlPluginRegistryInterface *iface)
Definition: fl_engine.cc:380
compositor_present_layers_callback
static bool compositor_present_layers_callback(const FlutterLayer **layers, size_t layers_count, void *user_data)
Definition: fl_engine.cc:203
kProp0
@ kProp0
Definition: fl_accessible_node.cc:83
fl_engine_private.h
fl_engine_gl_external_texture_frame_callback
static bool fl_engine_gl_external_texture_frame_callback(void *user_data, int64_t texture_id, size_t width, size_t height, FlutterOpenGLTexture *opengl_texture)
Definition: fl_engine.cc:260
TRUE
return TRUE
Definition: fl_pixel_buffer_texture_test.cc:53
flutter::GetSwitchesFromEnvironment
std::vector< std::string > GetSwitchesFromEnvironment()
Definition: engine_switches.cc:14
_FlEngine::FLUTTER_API_SYMBOL
FLUTTER_API_SYMBOL(FlutterEngine) engine
_FlEngine::platform_message_handler_destroy_notify
GDestroyNotify platform_message_handler_destroy_notify
Definition: fl_engine.cc:59
engine_switches.h
fl_dart_project_get_dart_entrypoint_arguments
G_MODULE_EXPORT gchar ** fl_dart_project_get_dart_entrypoint_arguments(FlDartProject *self)
Definition: fl_dart_project.cc:104
fl_renderer.h
fl_engine_send_platform_message_finish
GBytes * fl_engine_send_platform_message_finish(FlEngine *self, GAsyncResult *result, GError **error)
Definition: fl_engine.cc:739
_FlEngine::update_semantics_node_handler_data
gpointer update_semantics_node_handler_data
Definition: fl_engine.cc:63
_FlEngine::on_pre_engine_restart_handler_data
gpointer on_pre_engine_restart_handler_data
Definition: fl_engine.cc:68
fl_engine_runs_task_on_current_thread
static bool fl_engine_runs_task_on_current_thread(void *user_data)
Definition: fl_engine.cc:301
fl_texture_gl_populate
gboolean fl_texture_gl_populate(FlTextureGL *self, uint32_t width, uint32_t height, FlutterOpenGLTexture *opengl_texture, GError **error)
Definition: fl_texture_gl.cc:50
self
GdkEvent FlView * self
Definition: fl_view.cc:100
fl_binary_messenger_private.h
fl_engine_get_registrar_for_plugin
static FlPluginRegistrar * fl_engine_get_registrar_for_plugin(FlPluginRegistry *registry, const gchar *name)
Definition: fl_engine.cc:371
result
GAsyncResult * result
Definition: fl_text_input_plugin.cc:106
fl_pixel_buffer_texture_private.h
args
G_BEGIN_DECLS G_MODULE_EXPORT FlValue * args
Definition: fl_event_channel.h:89
fl_engine.h
error
const uint8_t uint32_t uint32_t GError ** error
Definition: fl_pixel_buffer_texture_test.cc:40
fl_engine_get_task_runner
FlTaskRunner * fl_engine_get_task_runner(FlEngine *self)
Definition: fl_engine.cc:908
flutter::AppLifecycleState::kResumed
@ kResumed
fl_engine_gl_proc_resolver
static void * fl_engine_gl_proc_resolver(void *user_data, const char *name)
Definition: fl_engine.cc:213
_FlEngine::thread
GThread * thread
Definition: fl_engine.cc:44
_FlEngine::binary_messenger
FlBinaryMessenger * binary_messenger
Definition: fl_engine.cc:48
fl_engine_send_platform_message
void fl_engine_send_platform_message(FlEngine *self, const gchar *channel, GBytes *message, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
Definition: fl_engine.cc:680
setup_locales
static void setup_locales(FlEngine *self)
Definition: fl_engine.cc:150
parse_locale
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