mirror of
https://github.com/firewalkwithm3/Sensor-Watch.git
synced 2024-11-23 03:30:30 +08:00
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2022 Joey Castillo
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <stdio.h>
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#include "watch.h"
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#include "watch_main_loop.h"
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#include <emscripten.h>
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#include <emscripten/html5.h>
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#define ANIMATION_FRAME_ID_IS_VALID(id) ((id) >= 0)
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#define ANIMATION_FRAME_ID_INVALID (-1)
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#define ANIMATION_FRAME_ID_SUSPENDED (-2)
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static bool sleeping = true;
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static volatile long animation_frame_id = ANIMATION_FRAME_ID_INVALID;
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// make compiler happy
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static void main_loop_set_sleeping(bool sleeping);
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static EM_BOOL main_loop(double time, void *userData);
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static inline void request_next_frame(void) {
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if (animation_frame_id == ANIMATION_FRAME_ID_INVALID) {
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animation_frame_id = emscripten_request_animation_frame(main_loop, NULL);
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}
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}
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static EM_BOOL main_loop(double time, void *userData) {
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if (main_loop_is_sleeping()) {
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request_next_frame();
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return EM_FALSE;
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}
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if (sleeping) {
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sleeping = false;
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app_wake_from_standby();
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}
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animation_frame_id = ANIMATION_FRAME_ID_INVALID;
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bool can_sleep = app_loop();
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if (can_sleep) {
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app_prepare_for_standby();
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sleeping = true;
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animation_frame_id = ANIMATION_FRAME_ID_INVALID;
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return EM_FALSE;
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}
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request_next_frame();
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return EM_FALSE;
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}
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void resume_main_loop(void) {
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if (!ANIMATION_FRAME_ID_IS_VALID(animation_frame_id)) {
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animation_frame_id = emscripten_request_animation_frame(main_loop, NULL);
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}
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}
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void suspend_main_loop(void) {
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if (ANIMATION_FRAME_ID_IS_VALID(animation_frame_id)) {
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emscripten_cancel_animation_frame(animation_frame_id);
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}
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animation_frame_id = ANIMATION_FRAME_ID_SUSPENDED;
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}
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void main_loop_sleep(uint32_t ms) {
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main_loop_set_sleeping(true);
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emscripten_sleep(ms);
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main_loop_set_sleeping(false);
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}
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bool main_loop_is_sleeping(void) {
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return EM_ASM_INT({ return Module['suspended']; }) != 0;
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}
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static void main_loop_set_sleeping(bool sleeping) {
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EM_ASM({
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Module['suspended'] = $0;
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}, sleeping);
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}
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void delay_ms(const uint16_t ms) {
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main_loop_sleep(ms);
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}
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int main(void) {
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app_init();
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_watch_init();
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app_setup();
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resume_main_loop();
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return 0;
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}
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