emscripten/tests/emscripten_main_loop_and_bl...

52 строки
1.2 KiB
C++

// Copyright 2015 The Emscripten Authors. All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License. Both these licenses can be
// found in the LICENSE file.
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <emscripten.h>
double prevTime = -1.0;
int frame = 0;
bool blockerExecuted = false;
void final(void*) {
assert(frame == 20);
#ifdef REPORT_RESULT
REPORT_RESULT(0);
#endif
}
void looper() {
if (blockerExecuted == false) {
#ifdef REPORT_RESULT
REPORT_RESULT(1);
#endif
}
frame++;
double curTime = emscripten_get_now();
double timeSincePrevious = curTime - prevTime;
prevTime = curTime;
printf("frame: %d. dt: %g. absolute: %g\n", frame, timeSincePrevious, curTime);
if (frame == 20) {
emscripten_cancel_main_loop();
emscripten_async_call(final, (void*)0, 1000);
}
}
void main_loop_blocker(void*) {
blockerExecuted = true;
emscripten_pause_main_loop();
emscripten_resume_main_loop();
}
int main() {
prevTime = emscripten_get_now();
emscripten_push_uncounted_main_loop_blocker(main_loop_blocker, NULL);
emscripten_set_main_loop(looper, 60, 1);
}