112 строки
2.3 KiB
C++
112 строки
2.3 KiB
C++
#include<stdio.h>
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#include<math.h>
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#include<stdlib.h>
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#include<SDL.h>
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#include<emscripten.h>
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#include<assert.h>
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int last = 0;
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extern "C" {
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bool pre1ed = false;
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bool pre2ed = false;
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void pre1(void *arg) {
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assert(!pre1ed);
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assert(!pre2ed);
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assert((int)arg == 123);
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pre1ed = true;
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}
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void pre2(void *arg) {
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assert(pre1ed);
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assert(!pre2ed);
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assert((int)arg == 98);
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pre2ed = true;
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}
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bool fived = false;
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void five(void *arg) {
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assert((int)arg == 55);
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fived = true;
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emscripten_resume_main_loop();
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}
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void argey(void* arg) {
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static int counter = 0;
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assert((int)arg == 17);
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counter++;
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printf("argey: %d\n", counter);
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if (counter == 5) {
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emscripten_cancel_main_loop();
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int result = 1;
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REPORT_RESULT();
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}
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}
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void mainey() {
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static int counter = 0;
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printf("mainey: %d\n", counter++);
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if (counter == 20) {
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emscripten_pause_main_loop();
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emscripten_async_call(five, (void*)55, 1000);
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} else if (counter == 22) { // very soon after 20, so without pausing we fail
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assert(fived);
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emscripten_push_main_loop_blocker(pre1, (void*)123);
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emscripten_push_main_loop_blocker(pre2, (void*)98);
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} else if (counter == 23) {
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assert(pre1ed);
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assert(pre2ed);
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printf("Good!\n");
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emscripten_cancel_main_loop();
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emscripten_set_main_loop_arg(argey, (void*)17, 0, 0);
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}
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}
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void four(void *arg) {
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assert((int)arg == 43);
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printf("four!\n");
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emscripten_set_main_loop(mainey, 0, 0);
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}
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void __attribute__((used)) third() {
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int now = SDL_GetTicks();
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printf("thard! %d\n", now);
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assert(fabs(now - last - 1000) < 500);
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emscripten_async_call(four, (void*)43, -1); // triggers requestAnimationFrame
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}
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void second(void *arg) {
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int now = SDL_GetTicks();
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printf("sacond! %d\n", now);
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assert(fabs(now - last - 500) < 250);
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last = now;
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emscripten_async_run_script("Module._third()", 1000);
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}
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}
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void never() {
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int result = 0;
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REPORT_RESULT();
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}
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int main() {
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SDL_Init(0);
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last = SDL_GetTicks();
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printf("frist! %d\n", last);
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double ratio = emscripten_get_device_pixel_ratio();
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double ratio2 = EM_ASM_DOUBLE_V({
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return window.devicePixelRatio || 1.0;
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});
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assert(ratio == ratio2);
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atexit(never); // should never be called - it is wrong to exit the runtime orderly if we have async calls!
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emscripten_async_call(second, (void*)0, 500);
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return 1;
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}
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