pebble/applib-targets/emscripten/emscripten_app.c
2025-01-27 11:38:16 -08:00

72 lines
1.9 KiB
C

/*
* Copyright 2024 Google LLC
*
* 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.
*/
#include "emscripten_app.h"
#include "emscripten_graphics.h"
#include "emscripten_resources.h"
#include "emscripten_tick_timer_service.h"
#include "applib/app.h"
#include "applib/ui/app_window_stack.h"
#include "applib/rockyjs/api/rocky_api_graphics.h"
#include <emscripten/emscripten.h>
__attribute__((weak)) int app_main(void) {
Window *window = window_create();
app_window_stack_push(window, false);
app_event_loop();
return 0;
}
static void prv_event_loop(void) {
Window *window = app_window_stack_get_top_window();
if (window && window->is_render_scheduled) {
GContext *ctx = rocky_api_graphics_get_gcontext();
layer_render_tree(&window->layer, ctx);
window->is_render_scheduled = false;
EM_ASM(
// Implemented by html-binding.js:
if (Module.frameBufferMarkDirty) {
Module.frameBufferMarkDirty()
}
);
}
}
void emx_app_init(void) {
emx_graphics_init();
emx_resources_init();
emx_tick_timer_service_init();
}
void emx_app_deinit(void) {
emx_resources_deinit();
}
void emx_app_event_loop(void) {
emscripten_set_main_loop(prv_event_loop,
0, /* using window.requestAnimationFrame() */
1 /* Simulate infinite loop */);
}
int main(int argc, char **argv) {
emx_app_init();
app_main();
emx_app_deinit();
return 0;
}