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// Copyright 2012 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 <stdbool.h>
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <SDL/SDL.h>
#include <emscripten.h>
#include <assert.h>
bool exit_ok = false;
int last = 0;
bool pre1ed = false;
bool pre2ed = false;
void pre1(void *arg) {
assert(!pre1ed);
assert(!pre2ed);
assert((long)arg == 123);
pre1ed = true;
}
void pre2(void *arg) {
assert(pre1ed);
assert(!pre2ed);
assert((long)arg == 98);
pre2ed = true;
}
bool fived = false;
void five(void *arg) {
assert((long)arg == 55);
fived = true;
emscripten_resume_main_loop();
}
void argey(void* arg) {
static int counter = 0;
assert((long)arg == 17);
counter++;
printf("argey: %d\n", counter);
if (counter == 5) {
emscripten_cancel_main_loop();
// The main loop is now done so its ok to run atexit handlers.
exit_ok = true;
exit(0);
}
}
void mainey() {
static int counter = 0;
printf("mainey: %d\n", counter++);
if (counter == 20) {
emscripten_pause_main_loop();
emscripten_async_call(five, (void*)55, 1000);
} else if (counter == 22) { // very soon after 20, so without pausing we fail
assert(fived);
emscripten_push_main_loop_blocker(pre1, (void*)123);
emscripten_push_main_loop_blocker(pre2, (void*)98);
} else if (counter == 23) {
assert(pre1ed);
assert(pre2ed);
printf("Good!\n");
emscripten_cancel_main_loop();
emscripten_set_main_loop_arg(argey, (void*)17, 0, 0);
}
}
void four(void *arg) {
assert((long)arg == 43);
printf("four!\n");
emscripten_set_main_loop(mainey, 0, 0);
}
EMSCRIPTEN_KEEPALIVE void third() {
int now = SDL_GetTicks();
printf("thard! %d\n", now);
assert(abs(now - last - 1000) < 500);
emscripten_async_call(four, (void*)43, -1); // triggers requestAnimationFrame
}
void second(void *arg) {
int now = SDL_GetTicks();
printf("sacond! %d\n", now);
assert(abs(now - last - 500) < 250);
last = now;
emscripten_async_run_script("Module._third()", 1000);
}
// Should not be called when main return but only once the
// main loops is stopped and the runtime shuts down.
void check_exit_ok() {
assert(exit_ok == true);
}
int main() {
SDL_Init(0);
last = SDL_GetTicks();
printf("frist! %d\n", last);
double ratio = emscripten_get_device_pixel_ratio();
double ratio2 = EM_ASM_DOUBLE({
return window.devicePixelRatio || 1.0;
});
assert(ratio == ratio2);
atexit(check_exit_ok);
emscripten_async_call(second, (void*)0, 500);
return 1;
}
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