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emscripten_api_browser.cpp
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92 lines (77 loc) · 1.86 KB
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#include<stdio.h>
#include<math.h>
#include<stdlib.h>
#include<SDL.h>
#include<emscripten.h>
#include<assert.h>
int last = 0;
extern "C" {
bool pre1ed = false;
bool pre2ed = false;
void pre1(void *arg) {
assert(!pre1ed);
assert(!pre2ed);
assert((int)arg == 123);
pre1ed = true;
}
void pre2(void *arg) {
assert(pre1ed);
assert(!pre2ed);
assert((int)arg == 98);
pre2ed = true;
}
bool fived = false;
void five(void *arg) {
assert((int)arg == 55);
fived = true;
emscripten_resume_main_loop();
}
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");
int result = 1;
REPORT_RESULT();
}
}
void four(void *arg) {
assert((int)arg == 43);
printf("four!\n");
emscripten_set_main_loop(mainey, 0, 0);
}
void __attribute__((used)) third() {
int now = SDL_GetTicks();
printf("thard! %d\n", now);
assert(fabs(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(fabs(now - last - 500) < 250);
last = now;
emscripten_async_run_script("Module._third()", 1000);
}
}
void never() {
int result = 0;
REPORT_RESULT();
}
int main() {
SDL_Init(0);
last = SDL_GetTicks();
printf("frist! %d\n", last);
atexit(never); // should never be called - it is wrong to exit the runtime orderly if we have async calls!
emscripten_async_call(second, (void*)0, 500);
return 1;
}